Pvc Battery Buying Guide
Dongguan Chamrider Technology Co., Ltd. delivers products like pvc battery with the high cost-performance ratio. We adopt the lean approach and strictly follow the principle of lean production. During the lean production, we mainly focus on reducing the waste including materials processing and streamlining the production process. Our advanced facilities and remarkable technologies help us make full use of the materials, thus reducing waste and save the cost. From product design, assembly, to finished products, we guarantee each process to be operated in the only standardized manner.
Chamrider Battery reaches different sectors of the population with the help of marketing. Through involvement with social media, we target different customer base and promote our products constantly. Though we pay attention to enhance marketing strategy, we still put our product in the first place owing to their significance to brand awareness. With the combined effort, we are bound to attract more customers.
The company not only provides customization service for pvc battery at Chamrider Battery, but also works with logistic companies to arrange freight to destinations. All the above-mentioned services can be negotiated if the customers have other demands.
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When it comes to our passion for electric bicycles, we strive to maximize the benefits and enhance performance. Therefore, a common question arises: Can we add a larger battery to our e-bike to increase range and speed?
Yes, you can install a larger battery on your electric bicycle to achieve greater range and, in some cases, improve speed. However, this is not a DIY project. If you desire this feature, you may need to purchase a bike with expandable battery storage.
Read on to learn more about how battery life affects performance, the impact of removing the battery from the frame, and tips for improving e-bike range!
How does battery life impact e-bike performance?
Removing the electric bike battery from the frame.
Battery life refers to the total number of charge cycles (from 0 to 100%) a battery can endure before it stops working. Your battery's lifecycle will affect overall performance. Batteries nearing the end of their lifecycle will not last as long or hold charge effectively.
The expected lifespan of an e-bike battery depends on the battery type. The most common battery types include:
Lithium batteries, the most prevalent type, can typically handle around 1,000 charge cycles.
Nickel batteries have an estimated lifespan of around 500 charge cycles.
Lead batteries have a lifespan of approximately 300 charge cycles.
While battery lifespan is important and impacts performance, battery capacity and range are crucial factors in choosing a battery. Range refers to how far you can travel on a single charge, while capacity refers to the duration of the ride.
Not all brands and manufacturers accurately describe their model ranges, but as a general rule of thumb, here are some figures:
250-500Wh: Within this range, your bike will be very basic and standard, with an estimated range of 25 miles per charge.
500-800Wh: This range indicates entry into the high-end segment, typically providing a range of over 30 miles per charge.
800+Wh: These are premium and luxury battery series. With this type of battery, you can expect a range of over 40 miles per charge.
Think of capacity like a fuel tank on a car; the more it can hold, the longer you can travel. Battery capacity operates similarly; the larger the capacity, the greater the distance it can cover.
If you are considering upgrading to a larger battery for your current e-bike, be sure to check the capacity and range.
Can you retrofit an electric bicycle with a larger battery?
Not all electric bicycle batteries are interchangeable.
Electric bicycles come in various designs and configurations. If you have the knowledge and skills, you may be able to equip your bike with a different battery. However, for most people and many models of bicycles, the battery is integrated into the bike itself.
Let's take the example of the ChamRider Integrated Battery SSE-125 SEA LION II model. It comes with a removable integrated battery, and you can upgrade that battery, but you can only use parts provided by the manufacturer.To enhance the battery capacity and fully leverage the bike's performance, you would need to spend around $500, which is nearly half the price of the bike itself.
Can batteries with different voltages (36v, 48v, 52v, etc.) be interchangeable?
The answer to this question is somewhat complex as it largely depends on your specific model and manufacturer. Depending on the type of controller you have, it may be possible to accept a range of voltages such as 24v-36v or 36v-48v. You would need to look up the specific details of your model to determine this.
The concern here is that a higher voltage battery could potentially fry the motor and electronic components. Running a higher voltage battery on a model that doesn't support it can result in the motor being permanently damaged.
That being said, many manufacturers build in a significant safety margin to account for these types of situations. Nonetheless, it's important to check with your model and manufacturer to avoid damaging your electric bicycle.
Adding additional batteries (expanding) to an existing battery
Adding more batteries to an existing battery is not a straightforward task and is not suitable for beginners. If you're looking for an upgrade, it's generally better to choose a higher-end model in the long run.
When adding more batteries to an existing setup, you need to know what you're doing. Lithium-ion batteries, in particular, can be dangerous and may cause minor explosions. Assuming you don't encounter an explosion, adding additional batteries can lead to issues of imbalance, premature battery death, and potential battery failures.
Most importantly, if you don't know what you're doing, do not attempt this operation. Adding more batteries can damage the batteries and potentially be life-threatening.
Will adding a larger battery increase speed and range?
When it comes to increasing speed and range, adding a larger battery is not a simple task and is much more complicated than it may seem.
In short, adding a larger battery can be dangerous, damage your bike, or be a very complex issue that isn't worth the trouble. To increase the speed of your bike, you would need to somehow increase the battery capacity.
Capacity doesn't necessarily mean faster speed, but it can represent a larger range. Watt-hours (Wh) are the measurement unit used to determine the battery pack's capacity, which allows you to measure the range. To calculate it, multiply the voltage by the amp-hour rating of the battery pack. For example, a 36V 10Ah battery pack has a capacity of 360 watt-hours (36 x 10 = 360). Assuming you use about 20 watt-hours per mile, then you can travel 18 miles.
In theory, having a larger capacity battery would allow you to ride for a longer duration. However, this is not a simple task and should be left to professionals. But what is the best way to increase the range of an electric bike without adding a larger battery?
What is the best way to increase the range of an electric bike?
For an electric bike, how you use the bike is just as crucial to the battery and motor as the bike itself. The terrain you ride on, how you handle the bike, and even the wind can affect the bike's range.
How much does it cost to replace an electric bike battery?
The cost of an electric bike battery can vary widely, but typically ranges from $200 to over $900. The range depends on factors such as the brand, capacity, and quality of the battery.
Let's take the example of a battery like the ChamRider 36V 48V Electric Bike Battery . This battery has a voltage of 48V and a capacity of 10Ah, and it is priced quite reasonably. You won't get the support of a high-end brand, but this battery can provide a range of 20-30 miles on a single charge.
With options closer to or above $800, you'll be spending more on the brand and quality. Mid-range prices of $400-$600 should be sufficient to get the job done quite well.
Another factor that can affect the price of a battery is whether it is an external battery or an integrated battery. For integrated in-frame batteries, you may need to pay more compared to external options.
Please keep in mind that while the upfront cost may be high, purchasing a replacement battery is a worthwhile investment. Buying a replacement battery can effectively double your range and provide peace of mind in case of emergencies. The decision depends on you and your budget, but we highly recommend having a spare battery!
Yes, you can install a larger battery on your electric bicycle to achieve greater range and, in some cases, improve speed. However, this is not a DIY project. If you desire this feature, you may need to purchase a bike with expandable battery storage.
Read on to learn more about how battery life affects performance, the impact of removing the battery from the frame, and tips for improving e-bike range!
How does battery life impact e-bike performance?
Removing the electric bike battery from the frame.
Battery life refers to the total number of charge cycles (from 0 to 100%) a battery can endure before it stops working. Your battery's lifecycle will affect overall performance. Batteries nearing the end of their lifecycle will not last as long or hold charge effectively.
The expected lifespan of an e-bike battery depends on the battery type. The most common battery types include:
Lithium batteries, the most prevalent type, can typically handle around 1,000 charge cycles.
Nickel batteries have an estimated lifespan of around 500 charge cycles.
Lead batteries have a lifespan of approximately 300 charge cycles.
While battery lifespan is important and impacts performance, battery capacity and range are crucial factors in choosing a battery. Range refers to how far you can travel on a single charge, while capacity refers to the duration of the ride.
Not all brands and manufacturers accurately describe their model ranges, but as a general rule of thumb, here are some figures:
250-500Wh: Within this range, your bike will be very basic and standard, with an estimated range of 25 miles per charge.
500-800Wh: This range indicates entry into the high-end segment, typically providing a range of over 30 miles per charge.
800+Wh: These are premium and luxury battery series. With this type of battery, you can expect a range of over 40 miles per charge.
Think of capacity like a fuel tank on a car; the more it can hold, the longer you can travel. Battery capacity operates similarly; the larger the capacity, the greater the distance it can cover.
If you are considering upgrading to a larger battery for your current e-bike, be sure to check the capacity and range.
Can you retrofit an electric bicycle with a larger battery?
Not all electric bicycle batteries are interchangeable.
Electric bicycles come in various designs and configurations. If you have the knowledge and skills, you may be able to equip your bike with a different battery. However, for most people and many models of bicycles, the battery is integrated into the bike itself.
Let's take the example of the ChamRider Integrated Battery SSE-125 SEA LION II model. It comes with a removable integrated battery, and you can upgrade that battery, but you can only use parts provided by the manufacturer.To enhance the battery capacity and fully leverage the bike's performance, you would need to spend around $500, which is nearly half the price of the bike itself.
Can batteries with different voltages (36v, 48v, 52v, etc.) be interchangeable?
The answer to this question is somewhat complex as it largely depends on your specific model and manufacturer. Depending on the type of controller you have, it may be possible to accept a range of voltages such as 24v-36v or 36v-48v. You would need to look up the specific details of your model to determine this.
The concern here is that a higher voltage battery could potentially fry the motor and electronic components. Running a higher voltage battery on a model that doesn't support it can result in the motor being permanently damaged.
That being said, many manufacturers build in a significant safety margin to account for these types of situations. Nonetheless, it's important to check with your model and manufacturer to avoid damaging your electric bicycle.
Adding additional batteries (expanding) to an existing battery
Adding more batteries to an existing battery is not a straightforward task and is not suitable for beginners. If you're looking for an upgrade, it's generally better to choose a higher-end model in the long run.
When adding more batteries to an existing setup, you need to know what you're doing. Lithium-ion batteries, in particular, can be dangerous and may cause minor explosions. Assuming you don't encounter an explosion, adding additional batteries can lead to issues of imbalance, premature battery death, and potential battery failures.
Most importantly, if you don't know what you're doing, do not attempt this operation. Adding more batteries can damage the batteries and potentially be life-threatening.
Will adding a larger battery increase speed and range?
When it comes to increasing speed and range, adding a larger battery is not a simple task and is much more complicated than it may seem.
In short, adding a larger battery can be dangerous, damage your bike, or be a very complex issue that isn't worth the trouble. To increase the speed of your bike, you would need to somehow increase the battery capacity.
Capacity doesn't necessarily mean faster speed, but it can represent a larger range. Watt-hours (Wh) are the measurement unit used to determine the battery pack's capacity, which allows you to measure the range. To calculate it, multiply the voltage by the amp-hour rating of the battery pack. For example, a 36V 10Ah battery pack has a capacity of 360 watt-hours (36 x 10 = 360). Assuming you use about 20 watt-hours per mile, then you can travel 18 miles.
In theory, having a larger capacity battery would allow you to ride for a longer duration. However, this is not a simple task and should be left to professionals. But what is the best way to increase the range of an electric bike without adding a larger battery?
What is the best way to increase the range of an electric bike?
For an electric bike, how you use the bike is just as crucial to the battery and motor as the bike itself. The terrain you ride on, how you handle the bike, and even the wind can affect the bike's range.
How much does it cost to replace an electric bike battery?
The cost of an electric bike battery can vary widely, but typically ranges from $200 to over $900. The range depends on factors such as the brand, capacity, and quality of the battery.
Let's take the example of a battery like the ChamRider 36V 48V Electric Bike Battery . This battery has a voltage of 48V and a capacity of 10Ah, and it is priced quite reasonably. You won't get the support of a high-end brand, but this battery can provide a range of 20-30 miles on a single charge.
With options closer to or above $800, you'll be spending more on the brand and quality. Mid-range prices of $400-$600 should be sufficient to get the job done quite well.
Another factor that can affect the price of a battery is whether it is an external battery or an integrated battery. For integrated in-frame batteries, you may need to pay more compared to external options.
Please keep in mind that while the upfront cost may be high, purchasing a replacement battery is a worthwhile investment. Buying a replacement battery can effectively double your range and provide peace of mind in case of emergencies. The decision depends on you and your budget, but we highly recommend having a spare battery!
As an electric bicycle enthusiast, you understand that the battery is the lifeblood of an electric bike, providing power for thrilling rides. However, over time, your battery may experience performance degradation or encounter software issues, which can affect your overall riding experience.
This is where resetting the electric bike battery comes into play. By following a few simple steps, you can inject new vitality into the battery and ensure it operates at its highest efficiency. In this article, we will delve into the importance of resetting an electric bike battery and provide you with a step-by-step guide on how to perform this operation. So, let's get started!
Why is resetting an electric bike battery important?
To fully harness the potential of your electric bike, resetting the battery is an essential step that should not be overlooked. This simple process can have a significant impact on the battery's overall performance and lifespan, ensuring smooth and efficient rides every time. In this section, we will explore three key reasons why resetting an electric bike battery is crucial: extending battery lifespan, restoring battery performance, and fixing software issues.
Extending battery lifespan:
One of the primary benefits of resetting an electric bike battery is the ability to significantly extend its overall lifespan. Over time, an electric bike battery may experience a phenomenon known as "memory effect," where it loses its maximum capacity due to repeated charging and discharging cycles. By resetting the battery, you essentially eliminate this memory effect and allow the battery to regain its full potential.
Imagine being able to ride longer distances without worrying about running out of power. By following a few simple steps, you can give your electric bike battery a fresh start and prolong its lifespan. Therefore, if you want to maximize the range of your electric bike, resetting the battery is an important step.
Restoring battery performance:
In addition to extending battery lifespan, resetting an electric bike battery can also restore its overall performance. Over time, as you ride your electric bike, the battery's performance may deteriorate due to factors such as temperature fluctuations and charging habits. This can result in reduced power output and decreased range, diminishing your riding enjoyment and potentially causing inconvenience.
However, by resetting the battery, you essentially get a fresh start. This process allows the internal cells of the battery to recalibrate, ensuring optimal performance and power delivery. So, if you notice a decline in the performance or range of your electric bike, a simple reset can bring it back up to speed.
Fixing software issues:
Another notable advantage of resetting an electric bike battery is that it can fix any software issues that may be causing problems with the functionality of the electric bike. Like any other electronic device, an electric bike relies on a complex software system to operate smoothly. However, sometimes these systems may encounter glitches or errors that can affect the overall performance and reliability of the electric bike.
By resetting the battery, you can effectively reboot the software of the electric bike, clearing any temporary issues or errors that may have accumulated over time. This can help address common problems such as inaccurate battery level indicators, unexpected power cuts, or even issues with the motor or controller. Therefore, if your electric bike is experiencing any strange behavior, a battery reset might be the quick solution you need.
How to Reset an Electric Bike Battery:
Resetting an electric bike battery is a simple yet effective method to optimize its performance and ensure it functions at its best. This process involves a few straightforward steps that anyone can follow. So, let's delve into how to reset an electric bike battery for optimal performance.
Step 1: Turn off your electric bike
Before starting the reset process, make sure your electric bike is turned off. This will prevent any potential electrical issues and ensure your safety while handling the battery.
Step 2: Disconnect the battery connection
Locate the battery on your electric bike and carefully disconnect it from the main power source. This step is crucial as it allows the battery to fully reset and recalibrate.
Step 3: Wait for a few minutes
After disconnecting the battery connection, let it rest for a few minutes. This waiting period allows any residual charges to dissipate and ensures a more thorough reset.
Step 4: Reconnect the battery
After the waiting period, reconnect the battery to its original position. Ensure it is securely connected to the electric bike's power system and properly aligned.
Step 5: Turn on your electric bike
Once the battery is reconnected, you can power on your electric bike. This step will initiate the reset process and synchronize the battery with the electric bike's software.
Step 6: Monitor battery performance
After resetting the electric bike battery, closely monitor its performance during the next few rides. Pay attention to factors such as battery life, power output, and overall efficiency. This will allow you to assess whether the reset has improved the performance of the electric bike battery.
By following these simple steps, you can reset your electric bike battery and enjoy the benefits of optimal performance. Remember, regular maintenance and upkeep are key to ensuring smooth and efficient operation of your electric bike for years to come.
Additional Tips for Battery Maintenance
In addition to resetting your electric bike battery, there are a few other tips to keep in mind to ensure optimal battery performance and lifespan. By following these guidelines, you can maximize the battery's lifespan and enjoy a smooth and efficient riding experience.
1.Regularly Charge the Battery
One of the most important aspects of battery maintenance is ensuring regular charging of your electric bike battery. It is recommended to charge the battery after each ride or at least every few weeks, even if you haven't used the electric bike. By keeping the battery charged, you can prevent it from fully discharging, which can lead to capacity loss over time.
2.Avoid Extreme Temperatures
Extreme temperatures, whether hot or cold, have a significant impact on the performance and overall lifespan of an electric bike battery. It is crucial to avoid exposing the battery to extreme temperatures, such as leaving it in direct sunlight or storing it in freezing temperatures. High heat accelerates battery degradation, while extreme cold temporarily reduces its capacity. If you need to store the electric bike for an extended period, consider how to store it during the winter season.
3.Properly Store the Battery
Properly storing the battery when you're not using the electric bike is essential to maintain its health and performance. Store the battery in a cool and dry place, away from direct sunlight and extreme temperatures. Additionally, if you won't be using the electric bike for an extended period, it is recommended to remove the battery. Storing the battery separately helps prevent any parasitic drain and potential damage to the battery.
4.How to Store an Electric Bike Battery
Properly storing an electric bike battery is crucial for extending its lifespan and ensuring optimal performance. By following these additional battery maintenance tips, you can maximize the longevity of your electric bike battery and enjoy its benefits for countless smooth rides.
To summarize, resetting an electric bike battery is a key step to guarantee optimal performance and lifespan. By following the simple steps outlined in this guide, you can extend the battery's lifespan, restore its performance, and address any potential software issues.
Remember, taking good care of your electric bike battery is essential for a smooth and enjoyable riding experience. For more information on electric bike maintenance and related topics, feel free to explore our other articles on ChamRider. We cover a wide range of topics, including how to clean your electric bike, how to store it during winter, and more. Happy riding!
Almost all electric bicycles are powered by lithium-ion batteries. These batteries have a very high energy density, which makes electric bikes relatively lightweight while providing long range. Despite the advantages of lithium batteries, one major challenge they face in terms of safety is the potential release of energy in the form of a fire if something goes wrong.
In terms of suppliers, ChamRider ensures that we use the highest quality materials in our batteries, such as LG/Panasonic lithium-ion batteries. They also design batteries with protections against overcharging, overdischarging, overcurrent, temperature cutoff, and many other safety features.
At ChamRider, everyone shares the core belief in educating customers about the potential hazards and the importance of taking preventive measures to ensure their safety.
This article aims to provide you with a useful guide. Therefore, we will discuss tips for safe charging and storing of lithium-ion batteries, as well as measures to take in case of emergencies.
How to Safely Charge an Electric Bicycle Battery
Most reported battery fires occur during the battery charging process. Therefore, consumers must be extra cautious when charging. Here are some tips regarding the correct charging process:
Always use the charger recommended by the manufacturer; if you purchase an aftermarket charger, ensure that it has UL certification and specifications identical to the original charger. Using a fast charger for non-fast-chargeable batteries can be dangerous.
Avoid placing the battery near heat sources such as heaters. High temperatures can damage lithium-ion batteries and lead to thermal runaway incidents.
Do not place the charger or battery on or near flammable materials like wooden furniture or building structures. Always try to place the charger and battery on a fire-resistant surface or space.
Always keep the battery within sight while charging. As an additional precaution, place a smoke alarm near the battery.
In the event of a fire, the initial few seconds are crucial as you still have a chance to extinguish it before it becomes uncontrollable; therefore, prompt response is essential.
Turn off the battery while charging.
It is normal for the charger to become warm during the charging process, but the battery should never become hot (warm to the touch). If you notice the battery becoming hot, disconnect it.
Avoid charging in temperatures below zero degrees as this can cause dendrite growth on lithium-ion batteries, leading to short circuits and fire incidents.
Charge in a well-ventilated area.
Do not leave the battery charging overnight.
Proper Storage of Lithium-Ion Batteries
The lithium-ion battery of your electric bicycle requires proper storage, and you can take some measures to ensure appropriate storage.
When storing the battery for an extended period, charge it to around 60%.
Avoid storing it in extreme temperatures or high humidity.
Do not use damaged batteries that are dropped, punctured, squeezed, or otherwise compromised.
If a lithium-ion battery catches fire, use a fire extinguisher to put it out (be cautious as such fires produce toxic smoke).
Avoid extinguishing lithium-ion battery fires with water, although it can be used to extinguish the fire, a report by the U.S. Department of Energy found that it requires excessive amounts of water.
Do not store batteries or charge them near a single point of exit.
Safe Use of Lithium-Ion Batteries
If the battery starts smoking, making unusual noises, or shows signs of melting, stop using it immediately and place the battery in a safe location.
If you notice drastic changes in voltage/performance, discontinue using the battery.
If you immerse the battery pack/bicycle in water, have it professionally inspected before using it again (moisture inside the battery pack indicates water has entered and may cause a short circuit).
Always use the battery with the product it comes with; do not use it for any other purposes.
Emergency Response Measures
For any electric bicycle owner, following the tips mentioned earlier can reduce the likelihood of emergencies. However, accidents can still happen. Therefore, it is important to familiarize yourself with measures to ensure the safety of yourself, loved ones, or anyone around you.
In general, when a lithium-ion battery catches fire, you can take the following three steps:
Use a fire extinguisher:
Depending on the size and type of the battery, there are several methods to extinguish a lithium-ion battery fire. You need to react quickly and prevent the fire from spreading.
Since fires caused by lithium-ion batteries are classified as Class B fires, you should choose a standard ABC or dry chemical fire extinguisher. The Class B classification is intended for distinguishing flammable liquids. As lithium-ion batteries contain liquid electrolytes, they fall under this category.
When burning, toxic liquid acts as a conduit for the fire, aiding in its rapid spread.
You can use the fire extinguisher to spray the flames until the fire is extinguished. The steps are as follows:
Pull out the safety pin to enable the use of the fire extinguisher.
Aim the nozzle at the base of the fire.
Squeeze the handle firmly.
To ensure the flames are completely extinguished, sweep the nozzle back and forth at the base of the fire.
Take the battery outside the building:
If you suspect any issues with the battery, such as excessive heat, liquid leakage, or unusual noises, you should place it in a safe, open outdoor space and wait for the battery to return to normal. Note that you should not attempt to handle a battery that is on fire or leaking, as it may pose a danger to you.
If the battery catches fire, wait for all the batteries to burn out, and then attempt to extinguish the fire.
Call the fire department:
Fires caused by lithium-ion batteries fall under the category of thermal runaway incidents. Subsequently, a fire involving an electric bicycle battery can present multiple hazards, such as toxic smoke, flames, and metal projectiles. After taking the necessary measures mentioned above, if you are unable to control the fire, contact the nearest fire department in your area.
Assess the severity of the situation and avoid approaching a burning battery. If you are not comfortable handling the fire, wait for the firefighters to arrive.
What safety features does ChamRider Electirc Bike Battery contain?
In order to ensure that our products meet your highest quality and safety expectations, ChamRider seeks and has been granted Canada's first UL 2849 electric bicycle certification.
The latest advancements in Battery Management Systems (BMS) allow for better control of the electric bike's battery pack from various aspects, such as battery operation and its charging and discharging. ChamRider's ultimate goal is to optimize the battery's performance and lifespan.
While we ensure to provide electric bike batteries that exceed industry standards, here are some safety features of ChamRider batteries.
Charging Protection (Voltage and Current)
If the charging voltage or current exceeds the specified range, ChamRider batteries will cut off the charging process; this ensures that charging is stopped in case of any faults.
Battery Balancing
Battery balancing improves the available capacity of the battery; additionally, unbalanced batteries may be damaged and result in malfunction over the long term. That's why ChamRider batteries are equipped with battery balancing and battery balancing cutoff functions. This way, if one of the batteries is permanently damaged and unable to balance, the battery will shut down.
Discharge Protection (Voltage and Current)
During product operation, voltage and current values are measured; if the voltage is too low or the current value is too high, the BMS will cut off the battery for safety reasons.
Short Circuit Protection
Short circuits in lithium-ion batteries are always dangerous. They can damage your battery and shorten its lifespan. In the worst-case scenario, a short circuit can pose serious risks such as battery fires or explosions, resulting in personal injury, property damage, or even death. ChamRider batteries have short circuit protection designed to monitor battery voltage and prevent hazardous situations caused by battery short circuits.
Temperature Cutoff Protection
ChamRider lithium-ion batteries incorporate temperature cutoff protection mechanisms that shut down the battery when the temperature exceeds the safety threshold.
Conclusion
Today, lithium-ion batteries are widely used in electric bikes. While these batteries themselves are not inherently dangerous, improper handling by some electric bike users has resulted in numerous fire incidents. This article discusses the safety measures to be taken during lithium-ion battery charging.
We also discuss the proper usage and storage methods that can be followed when dealing with such batteries.
Lastly, we discuss the safety measures taken by ChamRider to ensure the use of high-quality batteries in our electric bikes. These measures include short circuit protection, battery balancing, discharge protection, and temperature cutoff protection.
In terms of suppliers, ChamRider ensures that we use the highest quality materials in our batteries, such as LG/Panasonic lithium-ion batteries. They also design batteries with protections against overcharging, overdischarging, overcurrent, temperature cutoff, and many other safety features.
At ChamRider, everyone shares the core belief in educating customers about the potential hazards and the importance of taking preventive measures to ensure their safety.
This article aims to provide you with a useful guide. Therefore, we will discuss tips for safe charging and storing of lithium-ion batteries, as well as measures to take in case of emergencies.
How to Safely Charge an Electric Bicycle Battery
Most reported battery fires occur during the battery charging process. Therefore, consumers must be extra cautious when charging. Here are some tips regarding the correct charging process:
Always use the charger recommended by the manufacturer; if you purchase an aftermarket charger, ensure that it has UL certification and specifications identical to the original charger. Using a fast charger for non-fast-chargeable batteries can be dangerous.
Avoid placing the battery near heat sources such as heaters. High temperatures can damage lithium-ion batteries and lead to thermal runaway incidents.
Do not place the charger or battery on or near flammable materials like wooden furniture or building structures. Always try to place the charger and battery on a fire-resistant surface or space.
Always keep the battery within sight while charging. As an additional precaution, place a smoke alarm near the battery.
In the event of a fire, the initial few seconds are crucial as you still have a chance to extinguish it before it becomes uncontrollable; therefore, prompt response is essential.
Turn off the battery while charging.
It is normal for the charger to become warm during the charging process, but the battery should never become hot (warm to the touch). If you notice the battery becoming hot, disconnect it.
Avoid charging in temperatures below zero degrees as this can cause dendrite growth on lithium-ion batteries, leading to short circuits and fire incidents.
Charge in a well-ventilated area.
Do not leave the battery charging overnight.
Proper Storage of Lithium-Ion Batteries
The lithium-ion battery of your electric bicycle requires proper storage, and you can take some measures to ensure appropriate storage.
When storing the battery for an extended period, charge it to around 60%.
Avoid storing it in extreme temperatures or high humidity.
Do not use damaged batteries that are dropped, punctured, squeezed, or otherwise compromised.
If a lithium-ion battery catches fire, use a fire extinguisher to put it out (be cautious as such fires produce toxic smoke).
Avoid extinguishing lithium-ion battery fires with water, although it can be used to extinguish the fire, a report by the U.S. Department of Energy found that it requires excessive amounts of water.
Do not store batteries or charge them near a single point of exit.
Safe Use of Lithium-Ion Batteries
If the battery starts smoking, making unusual noises, or shows signs of melting, stop using it immediately and place the battery in a safe location.
If you notice drastic changes in voltage/performance, discontinue using the battery.
If you immerse the battery pack/bicycle in water, have it professionally inspected before using it again (moisture inside the battery pack indicates water has entered and may cause a short circuit).
Always use the battery with the product it comes with; do not use it for any other purposes.
Emergency Response Measures
For any electric bicycle owner, following the tips mentioned earlier can reduce the likelihood of emergencies. However, accidents can still happen. Therefore, it is important to familiarize yourself with measures to ensure the safety of yourself, loved ones, or anyone around you.
In general, when a lithium-ion battery catches fire, you can take the following three steps:
Use a fire extinguisher:
Depending on the size and type of the battery, there are several methods to extinguish a lithium-ion battery fire. You need to react quickly and prevent the fire from spreading.
Since fires caused by lithium-ion batteries are classified as Class B fires, you should choose a standard ABC or dry chemical fire extinguisher. The Class B classification is intended for distinguishing flammable liquids. As lithium-ion batteries contain liquid electrolytes, they fall under this category.
When burning, toxic liquid acts as a conduit for the fire, aiding in its rapid spread.
You can use the fire extinguisher to spray the flames until the fire is extinguished. The steps are as follows:
Pull out the safety pin to enable the use of the fire extinguisher.
Aim the nozzle at the base of the fire.
Squeeze the handle firmly.
To ensure the flames are completely extinguished, sweep the nozzle back and forth at the base of the fire.
Take the battery outside the building:
If you suspect any issues with the battery, such as excessive heat, liquid leakage, or unusual noises, you should place it in a safe, open outdoor space and wait for the battery to return to normal. Note that you should not attempt to handle a battery that is on fire or leaking, as it may pose a danger to you.
If the battery catches fire, wait for all the batteries to burn out, and then attempt to extinguish the fire.
Call the fire department:
Fires caused by lithium-ion batteries fall under the category of thermal runaway incidents. Subsequently, a fire involving an electric bicycle battery can present multiple hazards, such as toxic smoke, flames, and metal projectiles. After taking the necessary measures mentioned above, if you are unable to control the fire, contact the nearest fire department in your area.
Assess the severity of the situation and avoid approaching a burning battery. If you are not comfortable handling the fire, wait for the firefighters to arrive.
What safety features does ChamRider Electirc Bike Battery contain?
In order to ensure that our products meet your highest quality and safety expectations, ChamRider seeks and has been granted Canada's first UL 2849 electric bicycle certification.
The latest advancements in Battery Management Systems (BMS) allow for better control of the electric bike's battery pack from various aspects, such as battery operation and its charging and discharging. ChamRider's ultimate goal is to optimize the battery's performance and lifespan.
While we ensure to provide electric bike batteries that exceed industry standards, here are some safety features of ChamRider batteries.
Charging Protection (Voltage and Current)
If the charging voltage or current exceeds the specified range, ChamRider batteries will cut off the charging process; this ensures that charging is stopped in case of any faults.
Battery Balancing
Battery balancing improves the available capacity of the battery; additionally, unbalanced batteries may be damaged and result in malfunction over the long term. That's why ChamRider batteries are equipped with battery balancing and battery balancing cutoff functions. This way, if one of the batteries is permanently damaged and unable to balance, the battery will shut down.
Discharge Protection (Voltage and Current)
During product operation, voltage and current values are measured; if the voltage is too low or the current value is too high, the BMS will cut off the battery for safety reasons.
Short Circuit Protection
Short circuits in lithium-ion batteries are always dangerous. They can damage your battery and shorten its lifespan. In the worst-case scenario, a short circuit can pose serious risks such as battery fires or explosions, resulting in personal injury, property damage, or even death. ChamRider batteries have short circuit protection designed to monitor battery voltage and prevent hazardous situations caused by battery short circuits.
Temperature Cutoff Protection
ChamRider lithium-ion batteries incorporate temperature cutoff protection mechanisms that shut down the battery when the temperature exceeds the safety threshold.
Conclusion
Today, lithium-ion batteries are widely used in electric bikes. While these batteries themselves are not inherently dangerous, improper handling by some electric bike users has resulted in numerous fire incidents. This article discusses the safety measures to be taken during lithium-ion battery charging.
We also discuss the proper usage and storage methods that can be followed when dealing with such batteries.
Lastly, we discuss the safety measures taken by ChamRider to ensure the use of high-quality batteries in our electric bikes. These measures include short circuit protection, battery balancing, discharge protection, and temperature cutoff protection.
Introduction
An electric bicycle consists of two essential components: the motor and the battery. Both are crucial, and it is important to choose the right battery for your DIY customization. In this article, I will do my best to explain e-bike batteries in a simplified manner.
There are many factors to consider before purchasing a battery, and it's important not to make hasty decisions, as even lower-spec batteries can be costly.
I could write pages upon pages about modern batteries and their working principles, but I want to keep this article as simple as possible, focusing on selecting the right battery for your specific build.
Choosing the Right Battery
Several variables need to be considered before buying a battery. I will list them below, and each one requires careful consideration:
For the purpose of this article, I will focus on the most popular voltages currently used:
Most road-legal e-bike kits use a 36V battery, while more powerful motors may require a 48V or even a 52V battery. When using high-performance electric bikes, the voltage can reach up to 72V or even higher.
For example, if you purchase a 250W mid-drive motor, you would need a 36V battery. If you opt for a 1000W BBSHD motor, you would need a 48V battery.
Battery Placement
You need to decide where you want to mount the battery on your bicycle. The most popular location is the downtube in a diagonal position because it not only looks neat but also keeps the additional weight of the battery relatively centered and low, improving stability.
The Cube Target Pro mountain bike is powered by a Bafang BBS02 750W electric motor kit and a 52V battery.
Unfortunately, this may not apply to all bicycles and depends on the frame size and geometry. For many full-suspension mountain bikes, it can be challenging to mount the battery on the frame due to the rear suspension. Fortunately, there are now more compact battery packs available, but these packs have smaller outputs, typically around 36V 10.4Ah. Alternatively, you can mount the battery on the underside of the frame, but this may make it more susceptible to damage, and you need to check the clearance with the front tire when the suspension is fully compressed.
Frame-integrated batteries are also popular options for step-through frame bicycles or small frame bicycles. These types of batteries typically come with specific "double-layer" frames, which inevitably add weight to the rear of the bicycle.
Battery Range
Another important variable to consider is the Ah or "ampere-hour" rating of the battery. A battery with a capacity of 1 ampere-hour should be able to continuously provide a current of 1 ampere to the load for exactly 1 hour, or 2 amperes for 1/2 hour, or 1/3 ampere for 3 hours, and so on, before being fully discharged.
The capacity of a medium-sized battery is typically around 13Ah. When multiplied by the voltage, such as 36V x 13Ah = 468Wh, it gives the capacity in "watt-hours" (Wh). Watt-hours is a unit of electrical energy, equivalent to the power consumption of one watt over one hour. Therefore, a 36V 13Ah battery can effectively sustain 468 watt-hours.
How does this translate into measurable range? Assuming you are conservative with the power usage, you would spend approximately 20 watt-hours per mile of travel, giving you a range of 23.4 miles. This is based on the assumption of maintaining power consumption at that exact level throughout the duration.
Of course, in the real world, this scenario is unlikely as there are times when you may not need electric assistance at all, while other times you may heavily rely on it. For example, if you live in an area with long and steep hills, your power consumption per mile may exceed 20 watt-hours. If you reside in a fairly flat area, your consumption may be lower.
If you desire to achieve longer mileage, a 36V 17.5Ah battery would allow you to travel 31.5 miles at a constant power consumption of 20 watt-hours per mile. However, in real-world scenarios, I have reported ranges of 50-60 miles with such capacity batteries.
If you can only purchase a smaller battery, there are many ways to increase the battery range of an electric bike without spending any extra money.
Most electric bike batteries use standard 18650 lithium-ion cells produced by well-known manufacturers such as LG, Samsung, Panasonic, and Sanyo. In my opinion, opting for branded batteries is always wise as they tend to have longer lifespans and greater reliability compared to unbranded generic Chinese batteries. That being said, I have provided many battery packs using Chinese batteries without any issues. It all comes down to the price. Personally, I would spend a little more to purchase branded batteries as buying cheaper batteries might be a false economy.
Battery Maintenance
Lithium batteries require careful handling. There are restrictions on their transportation, and it's not without good reason. The problem is that if they catch fire, they burn at very high temperatures and can cause severe burns or even death. Do not store them in areas exposed to extreme heat.
These batteries do not like extreme temperatures at either end. Their performance decreases once the temperature drops below zero, and most manufacturers set the minimum operating temperature at -20 degrees Celsius and the maximum at 45 degrees Celsius.
Charging
When the battery is new, it is generally recommended to run it through at least three full charge and discharge cycles to ensure the battery is fully balanced, although I have ample evidence to suggest that discharging the battery to at least 50% during normal use is sufficient for this period.
There is some evidence to suggest that always fully charging the battery can shorten its lifespan, and most of the time, charging it to 80% and only fully charging the battery once is more beneficial for long-term battery health over weeks.
This is a somewhat controversial topic, as a highly respected lithium battery expert told me that this is not the case. In fact, I had a customer who followed the above practice, and several months later, the maximum charging voltage dropped significantly, and the battery needed to be rebalanced.
If the battery is not used for several months, it is also essential to ensure that the battery has at least 80% charge. If the battery is left discharged for several months without use, the voltage in the battery may drop below the design minimum and could result in permanent damage. Additionally, it is not recommended to store the battery at its maximum capacity for more than a few days, as this is also detrimental to the long-term health of the battery.
All these battery packs use a Battery Management System (BMS), which is the brain of the battery. It is a small electronic circuit that prevents overcharging and over-discharging and regulates the overall amplifier output. A fully charged 36V battery has a voltage of approximately 42.2V, and the BMS typically shuts off the battery at around 29V. A fully charged 48V battery has a voltage of 54.4V and usually shuts off around 39V. This is crucial because over-discharging can permanently damage the battery's chemical composition.
Continuous Current
This depends on several factors but will be influenced by the battery quality, voltage, Ah rating, and BMS. Most 36V 13Ah batteries have a continuous discharge rate between 15A-20A but may be able to provide higher output momentarily. This also depends on the type of motor controller being used. For example, the controller on a 1000W Bafang BBSHD can handle a continuous current of 30 amps.
Other Factors to Consider
A good mid-drive motor, such as Bafang or Tongsheng, utilizes the bike's gear ratio to transfer the power generated by the motor to the rear wheel. This results in higher efficiency and less battery energy consumption. On the other hand, large direct-drive hub motors cannot spin as fast, so they will consume more watt-hours per mile.
The weight of the rider also plays a significant role. A person weighing 100 kg riding a 250W electric bike at full power will consume more energy compared to a person weighing 75 kg.
Conclusion
If you only plan on using the bike for short trips of up to 20-30 miles, then a 36V 13Ah battery should be sufficient. The same applies to a 48V motor. However, if you plan on traveling or spending long periods in the saddle, it would be worthwhile to purchase a battery with a capacity of at least 36V 17.5Ah or even 20Ah.
The speed at which the electric bike system disconnects and your riding style are crucial for battery performance. Almost all major bicycle manufacturers now offer a range of road and off-road electric bikes.
From cargo commuting e-bikes to sleek carbon fiber electric road bikes that are almost indistinguishable from non-motorized bicycles, electric bikes have evolved from novelty to practicality in the cycling world.
Anyone who has invested in battery-powered consumer electronics can attest to the noticeable decline in battery performance over time. Therefore, for anyone considering purchasing an electric bike and existing owners alike, e-bike battery maintenance is an important consideration.
The best electric bikes
The best electric road bikes
The best commuting electric bikes
With the rapid pace of development, some potential electric bike owners are concerned that the premium they pay today will be frustratingly outdated in a few months. This is not entirely accurate and largely depends on your usage.
Take the electric bike motor, for example. Mid-drive motors come in two rated output powers: 250W and 500W. More powerful motors may be enticing, but they also consume more battery energy. For regular commuting, a 500W motor is almost entirely unnecessary.
As more research and development resources are poured into the electric bike market, mid-drive motors may become more efficient or lighter, but riders don't necessarily need greater output power. The key is finding the right balance between power and efficiency based on your specific riding needs.
What you should consider is battery technology and how the usage of an electric bike affects battery life.
Learning from the lessons of other digital devices
Battery suppliers in the electric bike market have chosen lithium-ion as the standardized chemistry. This battery composition has been validated in consumer electronics and automotive industries. Therefore, there is a wealth of user data available regarding the health of lithium-ion batteries.
The motor of your electric bike will last a long time, with fewer moving parts prone to damage or heavy maintenance. Where performance may decline over time is in the battery pack.
Most smartphone or laptop users have experienced battery degradation over time. However, the loss of energy capacity can be mitigated. The most crucial impact on the health of electric bike batteries is the frequency of charging from very low energy levels.
If you frequently drain the battery to almost empty in most rides, the likelihood of significant degradation is very real. Ideally, you want to minimize the time spent at zero energy consumption and at 100% energy consumption.
Most electric bikes come with three-mode configurations, roughly divided into thirds. The lowest pedal-assist mode uses one-third of the available motor power, the middle setting uses two-thirds, and the third setting provides full power.
By default, using the eco mode, you should complete your electric bike rides with the maximum battery capacity possible.
Use it sparingly as needed
Limiting the depth of discharge is the most important way to maintain the health of electric bike batteries.
While we all occasionally enjoy maximum motor assistance, it is quite unnecessary, especially considering the lower limits imposed on electric bike systems in the EU/UK, which are set at 25 km/h.
The only time you should use the full power of the electric bike is when conquering the steepest slopes during challenging climbs.
By judiciously using only the battery capacity you need and not excessively consuming all the extra watts, you will enjoy better and more stable battery health over time.
The electric bike motor also prefers a consistent cadence, preferably in the range of around 80 RPM. To achieve the best match between your input and the motor's output, it is better to ride with higher cadence and lower gears.
If you frequently ride your electric bike and fully deplete the battery, you may consider models with larger battery capacity. Alternatively, you can choose plug-in range extenders to balance the overall load of the electric bike's energy system.
Rethinking the "free" speed
Different countries and regions have different regulations regarding the speed and specifications of electric bikes.
In the United States, the maximum power limit for electric bike motors goes up to 750W and disengages assistance at speeds of 32 km/h. Europe and the UK have adopted stricter definitions, with a power output limit of 250W for electric bikes used on roads, disengaging electric assistance at 25 km/h.
As a result, electric bike riders in the EU and the UK generally experience less battery degradation due to the configuration of their bikes. By using more conservative pedal-assist software to manage their energy usage, electric bikes in the EU/UK theoretically operate more efficiently than similar products in the US market.
Commuting and active transportation electric bikes were never designed to be speed machines. The value of these pedal-assist bikes lies in alleviating the challenges of long-distance commuting along hilly routes or reducing the pain of riding against the wind on the way back home in the afternoon.
Electric bikes are most useful when enhancing the rider's power on steep climbs or against headwinds. In both cases, speed is low. Active commuters don't need to climb steep hills at 40 km/h.
For electric bike enthusiasts in the EU and the UK, the more conservative assist setting of 7 km/h for mid-drive motors can provide an excellent ownership experience and contribute to healthier long-term battery health.
From cargo commuting e-bikes to sleek carbon fiber electric road bikes that are almost indistinguishable from non-motorized bicycles, electric bikes have evolved from novelty to practicality in the cycling world.
Anyone who has invested in battery-powered consumer electronics can attest to the noticeable decline in battery performance over time. Therefore, for anyone considering purchasing an electric bike and existing owners alike, e-bike battery maintenance is an important consideration.
The best electric bikes
The best electric road bikes
The best commuting electric bikes
With the rapid pace of development, some potential electric bike owners are concerned that the premium they pay today will be frustratingly outdated in a few months. This is not entirely accurate and largely depends on your usage.
Take the electric bike motor, for example. Mid-drive motors come in two rated output powers: 250W and 500W. More powerful motors may be enticing, but they also consume more battery energy. For regular commuting, a 500W motor is almost entirely unnecessary.
As more research and development resources are poured into the electric bike market, mid-drive motors may become more efficient or lighter, but riders don't necessarily need greater output power. The key is finding the right balance between power and efficiency based on your specific riding needs.
What you should consider is battery technology and how the usage of an electric bike affects battery life.
Learning from the lessons of other digital devices
Battery suppliers in the electric bike market have chosen lithium-ion as the standardized chemistry. This battery composition has been validated in consumer electronics and automotive industries. Therefore, there is a wealth of user data available regarding the health of lithium-ion batteries.
The motor of your electric bike will last a long time, with fewer moving parts prone to damage or heavy maintenance. Where performance may decline over time is in the battery pack.
Most smartphone or laptop users have experienced battery degradation over time. However, the loss of energy capacity can be mitigated. The most crucial impact on the health of electric bike batteries is the frequency of charging from very low energy levels.
If you frequently drain the battery to almost empty in most rides, the likelihood of significant degradation is very real. Ideally, you want to minimize the time spent at zero energy consumption and at 100% energy consumption.
Most electric bikes come with three-mode configurations, roughly divided into thirds. The lowest pedal-assist mode uses one-third of the available motor power, the middle setting uses two-thirds, and the third setting provides full power.
By default, using the eco mode, you should complete your electric bike rides with the maximum battery capacity possible.
Use it sparingly as needed
Limiting the depth of discharge is the most important way to maintain the health of electric bike batteries.
While we all occasionally enjoy maximum motor assistance, it is quite unnecessary, especially considering the lower limits imposed on electric bike systems in the EU/UK, which are set at 25 km/h.
The only time you should use the full power of the electric bike is when conquering the steepest slopes during challenging climbs.
By judiciously using only the battery capacity you need and not excessively consuming all the extra watts, you will enjoy better and more stable battery health over time.
The electric bike motor also prefers a consistent cadence, preferably in the range of around 80 RPM. To achieve the best match between your input and the motor's output, it is better to ride with higher cadence and lower gears.
If you frequently ride your electric bike and fully deplete the battery, you may consider models with larger battery capacity. Alternatively, you can choose plug-in range extenders to balance the overall load of the electric bike's energy system.
Rethinking the "free" speed
Different countries and regions have different regulations regarding the speed and specifications of electric bikes.
In the United States, the maximum power limit for electric bike motors goes up to 750W and disengages assistance at speeds of 32 km/h. Europe and the UK have adopted stricter definitions, with a power output limit of 250W for electric bikes used on roads, disengaging electric assistance at 25 km/h.
As a result, electric bike riders in the EU and the UK generally experience less battery degradation due to the configuration of their bikes. By using more conservative pedal-assist software to manage their energy usage, electric bikes in the EU/UK theoretically operate more efficiently than similar products in the US market.
Commuting and active transportation electric bikes were never designed to be speed machines. The value of these pedal-assist bikes lies in alleviating the challenges of long-distance commuting along hilly routes or reducing the pain of riding against the wind on the way back home in the afternoon.
Electric bikes are most useful when enhancing the rider's power on steep climbs or against headwinds. In both cases, speed is low. Active commuters don't need to climb steep hills at 40 km/h.
For electric bike enthusiasts in the EU and the UK, the more conservative assist setting of 7 km/h for mid-drive motors can provide an excellent ownership experience and contribute to healthier long-term battery health.
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