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All about e-bike batteries

The battery is one of the most important components of any electric bike, and also the most expensive. The battery is the deciding factor in how long the bike can be used without charging, how long it can work, how much it weighs, etc. Generally speaking, when you choose an electric bike, the battery is the component that you pay the most attention to.


Nominal Voltage: 48V
Nominal Capacity: 20000mAh
Single Cell: 3.7V 5Ah
Cell size: 21700
Cell Combination: 13S4P
Cell Quantity (parallel*series): 52 pcs
Cell Source Resistance: about 40m
Life cycle: 1000 times
Discharge Cutoff Voltage: 36.4+/- 1V
Charge Cutoff Voltage: 54.6V
Rated Discharge Current: 30A

Frequently Asked Questions

1. How to store batteries in winter?
Storing batteries during the winter is very easy. Basically charging 50% is enough and store it in a cool place. It is best to store the battery outside the e-bike to prevent unwanted activation.

2. The battery heats up when charging. Is there something wrong?
No, that’s okay, all types of batteries generate heat during charging. The same goes for chargers.

Now let’s talk about the specific Safer e-bike battery being reviewed. The Safer e-bike batteries 13S4P 21700 48V 20Ah Rechargeable Battery Pack offers a number of features that make it an attractive option for those looking for a high-quality and reliable electric bike battery.

The first feature to highlight is the 13S4P cell combination, which consists of 52 21700 cells. This configuration provides a high level of performance and reliability, delivering a nominal voltage of 48V and a nominal capacity of 20000mAh. The use of 21700 cells ensures a compact and lightweight design, making it ideal for use in electric bikes.

In addition, the Safer e-bike battery pack is equipped with a protection PCB that includes a range of safety features, including overcharge, over discharge, over-current, over-heat, and short circuit protection. This provides peace of mind for users, knowing that their battery is well-protected and safe to use.

Furthermore, the battery pack is designed to be rechargeable and boasts no memory effect. This means that users can charge and use the battery as needed without having to worry about any long-term degradation in performance. The battery pack also offers a long cycle life, with the ability to be charged and discharged up to 1000 times, providing excellent durability and longevity.

The Safer e-bike battery pack is not only high-performing and reliable, but it is also environmentally friendly. It is free from heavy metals and hazardous substances, making it a sustainable and eco-friendly choice for electric bike users.

One of the standout features of the Safer e-bike battery pack is the inclusion of a 54.6V 2A charger. This provides a fast and efficient charging solution for the battery, allowing users to quickly and easily recharge their electric bike and get back on the road in no time.

The battery pack also features an XT60 plug, offering a secure and reliable connection to electric bikes. This ensures a stable and consistent power supply, allowing for smooth and reliable performance.

Overall, the Safer e-bike batteries 13S4P 21700 48V 20Ah Rechargeable Battery Pack is a top-quality option for electric bike users looking for a high-performing, reliable, and durable battery solution. With its range of safety features, environmentally friendly design, and fast charging capabilities, it is sure to meet the needs of even the most demanding electric bike users.

In conclusion, the Safer e-bike batteries 13S4P 21700 48V 20Ah Rechargeable Battery Pack is a solid choice for those looking for a high-quality and dependable electric bike battery. With its impressive performance, safety features, and environmental credentials, it offers excellent value for money and is sure to satisfy the needs of electric bike users.

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