Chamrider Battery is an ebike battery manufacturer and electric bicycle battery factory with 12 years of experience.

Guide to Shop Silverfish Battery 48v in Chamrider Battery

The performance index of silverfish battery 48v is in the domestic leading position. Our company - Dongguan Chamrider Technology Co., Ltd. didn't design to industry standards, we design and develop beyond them. Adopting only the highest quality sustainable materials, the product is China-made with purity, craft and timeless appeal in mind. It meets some of the world’s most stringent performance standards.

To define and differentiate the Chamrider Battery brand in the marketplace, we work closely with our global partners and clients to identify the brand strategy that supports the business. We draw upon our strong personal connections with the brand’s essence — which helps to guarantee the integrity, exclusivity, and authenticity of this brand.

We have experienced carrier partners all over the world. If needed, we can arrange the transport for orders of silverfish battery 48v and any other products at Chamrider Battery – whether through our own intermodal services, other suppliers or a combination of both.

Introduction:

With the arrival of winter, extra attention must be paid to the maintenance of electric bicycle batteries. Low temperatures can significantly affect battery performance and lifespan. In this blog post, we will explore some expert tips and practical information to help you keep your electric bicycle battery in optimal condition during the winter season.

Storing the Battery in a Temperature-Controlled Environment:

Extreme cold can have a negative impact on the capacity and overall performance of electric bicycle batteries. It is crucial to store the battery in a dry, temperature-controlled environment whenever possible. The storage temperature should be maintained between 20°C and 25°C (68°F and 77°F) to ensure the best battery health.

Keeping the Battery Charged:

During winter, even if you don't use your electric bicycle frequently, it is essential to keep the battery charged. Commonly used lithium-ion batteries in electric bicycles self-discharge at a higher rate in colder temperatures.

During storage, the battery charge should be maintained between 30% and 60% to prevent deep discharge or overcharging. Using a smart charger that can automatically maintain the optimal charging level is recommended.

Minimize exposure to extremely cold environments during riding:

When riding in winter, take precautions to protect your electric bicycle battery from extreme cold. Lower temperatures can temporarily reduce the battery's capacity, affecting its range. Consider using neoprene covers to insulate the battery and provide some thermal protection. Additionally, avoid leaving your electric bicycle parked outdoors in freezing temperatures for extended periods.

Optimize battery usage and efficiency:

To maximize the performance of your electric bicycle battery during winter, take the following energy-saving measures:

A. Use pedal-assist mode: Pedal-assist mode is more efficient than relying solely on the throttle. It reduces the strain on the battery and extends the range.

B. Avoid frequent rapid acceleration: Sudden bursts of acceleration can deplete the battery more quickly. Gradual acceleration and maintaining a steady speed help conserve energy.

C. Plan your route wisely: Plan your rides to minimize steep inclines and strong headwinds as these factors increase the workload on the battery.

Regularly check battery voltage and capacity:

Monitoring the voltage and capacity of your electric bicycle battery is essential for understanding its health. Use a battery monitoring system or consult the electric bicycle manufacturer's guidelines to measure the battery's voltage and capacity regularly. If you notice a significant decrease in capacity or abnormal voltage readings, consider contacting professionals for further inspection.

Conclusion:

Properly maintaining your electric bicycle battery in winter is crucial for ensuring optimal performance and lifespan. By storing the battery in a temperature-controlled environment, keeping it charged, minimizing exposure to extreme cold, optimizing battery usage, and monitoring its voltage and capacity, you can enjoy reliable and efficient rides throughout the winter season. Remember, a well-maintained battery enhances your electric bicycle experience, allowing you to effortlessly ride through snowy landscapes.

Charging and caring for your lithium-ion ebike battery

Your electric bicycle battery is quite expensive. Understanding how to charge and maintain it correctly can extend its lifespan by 2 to 3 times. There are also some things to avoid that can significantly shorten the battery's lifespan. This article will tell you:

What to do when your battery is new

Basic electric bicycle battery charging guide

How to store it when you're not riding for a while

Lithium-ion batteries and safety

How to prolong battery lifespan

Charging with a "smart charger"

These guidelines and instructions assume that you purchased the battery together with the motor or electric bicycle, and their power and charging capacities are matched accordingly.

If you purchased them separately, you will need to learn more information to ensure you have the correct battery and there are no potentially dangerous combinations. Ideally, the battery should provide more capacity than the motor requires, and the charging speed should be faster than the charger's charging speed. Both have room to spare, so your battery won't be stressed, making it safer and prolonging its lifespan.

Lithium-ion batteries require minimal maintenance. The battery's longest range is achieved when it is charged between 30% and 80% capacity. Unlike other chemistries, lithium-ion batteries do not have a memory effect and can be topped up as needed.

When your battery is new:

Before use, it is recommended to fully charge the battery. For the initial charge, you should charge the battery to 100%. If time permits, leave it on the charger for about 12 hours to ensure an even distribution of battery charge. Afterward, if you have a smart charger, you can charge it to 80% or 90% to extend battery lifespan. Then, every few months or so, perform a full 12-hour charge after a deep discharge to recalibrate the battery.

Basic electric bicycle battery charging guide:

The battery can be charged on or off the bicycle.

First, plug the charger into an AC power outlet. If there is a switch, turn it on and then off. This charges the internal capacitors of the charger and prevents a surge current to the battery.

Next, plug the charger into the charging port of the battery, and if there is a switch, turn it on. Most chargers have a set of LED lights. One of them will be red during charging and turn green when the battery is fully charged. When the indicator light turns green, the charger is not charging the battery and should be disconnected.

Ensure that the battery is not near flammable materials during charging.

For Electrify Bike Co batteries with switches, turn them on before charging.

Disconnect the charger when the green light is illuminated.

Charge the battery when the remaining capacity is between 30% and 60%.

Partial charging extends battery lifespan more than full charging.

Do not charge below freezing or above 50°C (120°F).

Perform a 100% charge every 1-3 months.

Storing Your Lithium-Ion Electric Bicycle Battery

When you are not riding your electric bicycle temporarily, there are two crucial things to consider when storing the battery: the charge percentage and the temperature. If you plan to store the battery for more than a few weeks, you should set its charge level between 40% and 70%. Do not store the battery at 100% charge as it will shorten its overall lifespan. Additionally, avoid storing the battery with a charge level below 40% as the capacity may degrade over time. If it falls below its low-voltage limit (around 2.6-2.8 volts per cell), it may become permanently damaged and might not be rechargeable thereafter.

During long-term storage, it is advisable to periodically check the voltage and recharge it to above 50% as needed. This frequency can range from every 3 to 6 months.

Keep the battery at a moderate temperature. Lithium-ion batteries that are partially charged tend to have a longer lifespan when stored in a cool place. The worst combination is high voltage (100%) and high temperature. For long-term storage (several months or longer), store the lithium-ion battery at approximately 50% charge. Ensure that you do not leave the battery in a place where the temperature may rise above 120 degrees Fahrenheit for an extended period, such as a closed vehicle or a building without climate control.

If the temperature drops below 32 degrees Fahrenheit (0°C), do not charge the battery, as it may be damaged. Place the battery indoors and allow it to warm up before charging. Discharging the battery (riding the bicycle) is possible in cold weather, but it will reduce your range. However, it will not harm your battery or shorten its lifespan. Conversely, if the temperature exceeds 120 degrees Fahrenheit, do not charge the battery, as it may also be damaged.

Lithium-Ion Batteries and Safety

Lithium-ion batteries can pose a fire hazard. This risk is significantly reduced if you purchase high-quality batteries from reputable sources that use branded cells. However, the risk increases if any cells within the battery are damaged due to drops or exceeding charging/discharging limits. Do not leave charging batteries unattended, and avoid charging them near flammable materials. If the battery is visibly damaged due to drops or water exposure, it should be recycled and replaced.

Failure to charge lithium-ion batteries in accordance with the following guidelines can shorten their lifespan and pose significant safety hazards.

Lithium-ion Battery Charging Temperature:

0°C to 45°C (32°F to 113°F)

Lithium-ion Battery Discharging Temperature:

–20°C to 60°C (–4°F to 140°F)

Extreme Temperature Guidelines:

Charge at reduced current below 41°F.

Charging below freezing is not permitted.

Good charging and discharging performance at higher temperatures but with a shorter lifespan.

Extending Battery Lifespan

Lithium-ion batteries, unlike some other technologies, do not have a memory effect, so you can charge them at any time without fully discharging them. When charged to 100%, it is expected to go through about 300-400 full charge cycles before the battery capacity drops to 80% of its original capacity. In terms of range, this means that if your new battery can travel 20 miles at 80% capacity, it will only travel 16 miles after 300-400 full charge cycles.

The simplest way to extend battery lifespan is to only charge it to 80% or 90% when you won't be riding for a few days. Most recreational rides don't require a full charge anyway. Doing so can extend the battery's lifespan by 2 to 4 times. Charging to 90% will give you around 1000 charge cycles, while charging to 80% will give you around 1600 charge cycles. This is similar to how you treat your smartphone. After charging it every day for a year, you'll notice that its talk or screen time is only 80% of what it used to be.

If you know you're going on a long ride and want to ensure the battery has enough charge, feel free to charge it to 100%. Doing so before a ride won't shorten the battery's lifespan. To control charging at 80% or 90%, you would need an "advanced" or "smart" charger that has this feature. Most chargers that come with electric bicycles do not have this capability.

If you use a smart charger to extend battery lifespan by charging to 80% or 90%, you should occasionally (every 2-4 months) balance the battery. To do this, you'll need to perform a deep discharge (below 30%) and then charge the battery to 100% to give the battery management system (BMS) a chance to rebalance the battery for maximum capacity.

Subjecting the battery to high drains will shorten its lifespan. If your battery is rated for a continuous power of 40 amps, it doesn't necessarily mean you should run it at that power for extended periods. If your battery feels hot to the touch during use, it may indicate that you're drawing too much current for too long. The BMS of the battery may allow you to draw more current when needed, but you should be aware that it should not be abused.

Avoid charging the battery too quickly or too frequently. Just like electric cars with fast-charging stations, you can also fast-charge electric bicycles. Electric car manufacturers warn against relying solely on fast-charging stations as it can shorten the lifespan of the car battery. Unlike fast chargers for cars, most electric bicycle fast chargers operate within the safe charging limits of the battery and do not shorten its lifespan, unless you have found and purchased an ultra-fast charger.

For example, all the batteries used by Electrify Bike Co. can be charged at 1.5 amps without decreasing the battery lifespan. Our popular battery, the Super Shark, consists of 14 series cells and 4 parallel cells. Four times 1.5 amps equals 6 amps, so the charger can charge at a current of 6 amps without reducing the battery lifespan. Our fastest chargers are only four and five amps, which is two-thirds of the safe charging level. Each battery also has a safe fast-charging rating, but frequent use may decrease the battery lifespan. This rating is approximately 2.5 amps per cell, so a 4P battery has a rated current of 10 amps. Even the Electrify Bike 2P Mini-Max battery can handle a 5-amp charge without reducing the battery lifespan. This is one of the many advantages of using high-quality batteries in battery manufacturing.

Using "smart chargers" for charging

Smart chargers can automatically stop charging when the battery reaches 80%, 90%, or 100% capacity. This can be selected using a rotary switch at the end of the charger. Electrify Bike Company offers smart chargers in 2-amp and 4-amp sizes, suitable for 36V, 48V, 52V, and 72V batteries. We also provide advanced smart chargers with the same voltages and an additional rotary switch to select 1 to 5 amps. The advanced smart chargers also feature a display screen with switches to show voltage and current.

The recommended way to use a smart charger is to charge to 90% after each ride, so your bike is always ready to go. Then, if you're planning an extended ride and want to ensure maximum battery range, you can charge it to 100%. Charging the battery to 100% before a ride will not have a negative impact on battery lifespan.

What is a battery management system? Complete Guide

Battery Management System (BMS) is a technology specifically designed to monitor battery packs, which are organized electrically in an x-by-y matrix configuration to achieve desired voltage and current ranges for expected load scenarios.

The supervision provided by BMS typically includes:

1. Monitoring the batteries

2. Providing battery protection

3. Estimating the operational state of the batteries

4. Continuously optimizing battery performance

5. Reporting operational status to external devices

The overall goal of BMS is to optimize battery performance through intelligent management and protection, thereby extending battery life.

Types of Battery Management Systems

There are different types of battery management systems, each with its unique features and applications.

Some common types of battery management systems include:

1. Centralized BMS Architecture

2. Modular BMS Topology

3. Master/Slave BMS

4. Distributed BMS Architecture

Centralized BMS Architecture

A centralized BMS is a system where all battery management functions are handled by a single computer. Such systems are typically used in large-scale commercial applications where reliability and accuracy are primary considerations.

Modular BMS Topology

Modular BMS topology is a BMS that utilizes modules connected to the batteries. These modules can be placed at any location on the battery pack, allowing for easy addition or removal of functionalities as needed. Modular design also facilitates easy upgrades or replacement of components without impacting the overall operation of the system.

This topology is particularly suitable for applications that require a high level of flexibility and scalability.

Primary/Subordinate BMS

Primary/Subordinate BMS is a configuration where one master unit controls and communicates with multiple slave units. The master unit coordinates the overall operation of the system, while the slave units handle specific tasks or monitor individual battery modules. This configuration allows for distributed control and monitoring while maintaining centralized coordination.

Distributed BMS Architecture

Distributed BMS architecture is a system where each battery module has its own local BMS, and these local BMS units communicate with each other to collectively manage the battery pack. This architecture allows for a decentralized approach to battery management, providing redundancy and fault tolerance.

This topology is particularly well-suited for applications that require high levels of flexibility and scalability.

The importance of Battery Management Systems

One of the most critical features of any electronic device is its battery. Without a reliable and robust battery, your device is essentially of little value—it might not even turn on!

While electronic devices continue to become more powerful and efficient, batteries have not necessarily become smaller or stronger. In fact, a study found that smartphone batteries have actually been getting larger in recent years!

Hence, the popularity of Battery Management Systems (BMS) among electronic manufacturers should come as no surprise. BMS plays a crucial role in ensuring that the batteries in electronic devices have the longest possible lifespan and reliable performance.

Functional safety

Lifespan and reliability

Performance and range

Troubleshooting and maintenance

Reliability

Cost and warranty reduction

Functional Safety:

A battery management system (BMS) can help to ensure that batteries in electronic devices last as long and perform as reliably as possible. This is important because it reduces the chances of accidents – not just with the device itself, but also with related equipment.

Life Span and Reliability:

In addition to ensuring that batteries last as long as possible, a BMS can also help to improve reliability by minimizing the chances of battery packs failing during normal use. In fact, some studies have found that using a BMS can even result in increased life spans for individual cells!

Performance and Range:

Another important benefit of a BMS is that it can help to improve the performance and range of devices. This is because it can help to optimize battery usage – both in terms of how much power each cell can consume, as well as how long each battery pack will last.

Troubleshooting and Maintenance:

Finally, a BMS can also be helpful in troubleshooting and maintaining devices. This is because it provides accurate information about the health (and condition) of batteries – both individual cells, as well as entire packs. And because it can be integrated with other devices, a BMS can also help to simplify maintenance procedures.

Reliability:

BMS is considered to be extremely reliable – both in terms of its ability to keep devices working as expected, and its overall lifespan. In fact, some studies have found that even when failures do occur, they are typically mild and relatively easy to repair.

Cost and Warranty Reduction:

Overall, using a BMS can result in cost savings for device manufacturers as well as end users. This is because it can help to reduce the number of battery packs that need to be manufactured (and/or purchased), as well as the associated expense. Additionally, a BMS can also provide additional warranty protection for devices.

The Battery Management System (BMS) serves several different functions. The Electrical Protection Management of the BMS helps protect the battery pack from overcharging, incorrect charging, and over-discharging. Capacity management assists in optimizing the battery pack's discharge voltage and capacity by monitoring charging/discharging cycles and adjusting battery parameters accordingly. The Thermal Management System (TMS) prevents thermal runaway of the battery by monitoring battery voltage, current, temperature, and fan speed.

Electrical Protection Management - Current:

BMS helps protect the battery pack from overcharging, incorrect charging, and over-discharging. Essentially, these management system functionalities help optimize battery performance by monitoring charging/discharging cycles.

Electrical Protection Management - Voltage:

One of the key functions of the BMS is voltage management. By monitoring the battery pack voltage levels and adjusting battery parameters (e.g., battery voltage) accordingly, the BMS helps prevent over-discharging or undercharging of the battery. This helps maintain optimal pack health and performance.

Thermal Management:

Thermal management is another important function of the BMS. By monitoring battery voltage, current, temperature, and fan speed, the BMS helps prevent thermal runaway of the battery. The thermal management system functionality also helps optimize battery pack performance by ensuring that the battery stays within safe operating limits.

Capacity Management:

BMS also assists in managing the capacity of the battery pack by monitoring charging/discharging cycles and adjusting battery parameters accordingly. This helps optimize battery performance while keeping the battery pack within a safe operating range.

Components of Battery Management System:

The Battery Management System (BMS) is a specialized hardware and/or software device that helps optimize the performance and lifespan of battery packs in electronic devices.

A typical BMS monitors the health (and condition) of individual batteries as well as the entire battery pack. It also provides accurate information on State of Charge (SOC), state of health, energy usage, and temperature of the battery. This makes it an essential tool for device manufacturers who want to ensure that their devices operate reliably even under harsh conditions.

In addition to improving device operation, the BMS also simplifies maintenance procedures. This is because it helps identify and diagnose issues early, minimizing the time and effort required to rectify problems.

Battery Management System (BMS) Operations and Maintenance

The Battery Management System (BMS) is a computer system that monitors, manages, and maintains battery charging, discharging, and status. The BMS can also predict when a battery may need replacement or repair.

BMS should be installed in any facility that uses or stores batteries, such as factories, power plants, hospitals, and schools. Having a BMS is crucial because batteries are critical components of many devices, from electric vehicles to mobile phones, and improper management can pose safety risks.

The primary goal of the BMS is to maintain battery health and safety by monitoring the battery's charge level, temperature, and other performance indicators. It also provides warnings to users when the battery starts to lose capacity or approaches its maximum limits. Additionally, if the battery requires maintenance or replacement, it can initiate preventive maintenance procedures.

Overall, a good battery management system helps ensure the safe and efficient use of batteries now and in the future.

Conclusion

As you can see, there are many benefits to using a Battery Management System in battery packs. The technology ensures not only fast charging and safe driving but also ensures that the battery is always fully charged.

Most importantly, some systems have additional features such as remote monitoring and diagnostics, so you no longer have to worry about the health of your battery. Click here to learn more about how we ensure that your vehicle has everything it needs!

Lead Acid Vs Lithium Ion Battery Ebike: Which one is best ?

The differences between lead-acid batteries and lithium-ion batteries on electric bicycles are quite apparent.

Cost:

Lead-acid battery systems can be several hundred or thousand dollars cheaper than comparable lithium-ion batteries.

Currently, the price range for lithium-ion batteries is between $5,000 and $15,000 (including installation costs), and this range may vary depending on the size of the required system.

Associated Costs:

The purchase and installation costs of lead-acid batteries are generally cheaper than lithium-ion batteries.

The cost component of lithium-ion batteries is higher; however, the lifespan value of lithium-ion batteries offsets this impact.

Energy Density:

The energy density of lead-acid batteries is much lower than that of lithium-ion batteries. Lithium-ion batteries have significantly higher energy density compared to lead-acid batteries.

Lithium-ion batteries can store more energy in the same physical space. Additionally, they can release more energy, providing power for a longer duration.

Discharge Capacity:

The discharge capacity of lead-acid batteries should not exceed around 50% as it can shorten the battery's lifespan.

Typically, lithium-ion batteries utilize 85% or more of their total capacity in a single cycle. Therefore, lithium-ion batteries have better effective capacity than lead-acid batteries.

Efficiency:

The efficiency of lead-acid batteries ranges from 80% to 85%. These batteries charge slowly and have lower effective battery capacity.

Most lithium-ion batteries have an efficiency of 95% or higher, meaning that 95% or more of the energy collected in the lithium-ion battery can be utilized. These batteries charge quickly and have a larger effective capacity.

Application:

Lead-acid batteries are well-suited for large-scale stationary applications where space is abundant and energy demands are low. In terms of cost and size, lithium-ion batteries may be the ideal choice for electric bicycles.

Environmental Friendliness:

Lead is a carcinogenic and environmentally hazardous substance. Even lead-acid batteries contain dangerous compounds like sulfuric acid. Lithium-ion batteries are more environmentally friendly as lithium is a harmless substance.

Which battery is best for electric bicycles?

For electric bicycles, lithium-ion (Li-ion) batteries are the best choice. While lead-acid batteries are still much cheaper, they are three times heavier than lithium-ion batteries.

Lithium-ion batteries are favored for their lightweight nature and suitability for long-distance travel. Compared to older battery technologies, lithium-ion batteries offer faster charging, longer range, and better power density, achieving longer battery life in lighter containers.

However, the five most critical variables to consider when choosing battery chemistry are specific energy, cost, lifespan, power, and safety.

What is the lifespan of an electric bicycle battery?

With proper maintenance, the battery lifespan can range from 3 to 5 years. Even when not in use, lithium batteries on electric bicycles will gradually lose capacity and self-discharge.

Even if the connected electric bicycle doesn't require any power or remains unused, the lithium battery on the electric bicycle will lose the stored energy due to internal actions.

Excessive self-discharge can cause irreversible damage to the electric bicycle's battery. Therefore, it is recommended to actively utilize it.

How Many Years Should An Ebike Battery Last?

Generally, a high-quality eBike battery may last between 3 and 5 years. Of course, this depends on various factors, including the type of battery, and how well you maintain it.

The major factors recommended for prolonging the e-bike’s battery life include the following:

Charge your battery completely for up to 4-7 hours before your first ride to extend its lifespan.

Use the original charger provided during the initial purchase with your e-bike; never mix and match chargers.

Do not wait until your e-bike battery is completely drained before charging.

Maintain your e-bike by charging it regularly and adequately.

Establish a charging station that is both dry and secure. Electrical gadgets should not be exposed to high humidity.

Learn your battery’s high and low voltage cut-off limitations.

Regularly clean around the battery connections and eliminate any corrosion.

Lithium batteries are the most prevalent battery in electric bikes nowadays.

Advantages Of Lithium Batteries

Disadvantages of lithium electric bicycle batteries

Advantages Of Lead Acid Batteries For E-Bikes

Disadvantages of lead acid batteries for e-bikes

Conclusion:

Which is better, lead-acid batteries or lithium-ion batteries? In most cases, lithium-ion battery technology is superior to lead-acid battery technology due to its advantages in reliability and efficiency.

If the electric bicycle is not used frequently, the cheaper lead-acid battery may be preferred. According to recent research, the lifespan of lithium-ion batteries in electric bicycles is 45% longer than that of equivalent-rated lead-acid batteries.

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