Electric Bicycle Battery Frequently Asked Questions: Expert Answers to Your Top Questions

With the rapid development of the electric bicycle market, users and brands often encounter various questions when purchasing or customizing batteries. As a core component of the entire vehicle, the performance, safety, and lifespan of the battery directly affect the riding experience.

As a professional lithium battery research and manufacturing company, We have compiled the most common questions in the industry and provided professional answers from our expert team to help brand customers and end-users better understand electric bicycle batteries.

Part 1. Electric Bicycle Battery Frequently Asked Questions (FAQ)

1. How long do electric bicycle batteries last? How to extend their lifespan?

Answer:
The lifespan of a lithium battery is usually measured in cycles (one complete charge and discharge counts as one cycle), generally 800–1200 cycles.
Methods to extend battery life include:

Avoiding over-discharging (below 20%) or overcharging (staying at 100% for extended periods)

Using the matching charger to avoid overcurrent

Avoiding high temperatures or prolonged exposure to sunlight

Regularly checking the battery status through the BMS to ensure balance and health

2. What role does the BMS (Battery Management System) play in electric bicycle batteries?

Answer:
The BMS is the “brain” of the electric bicycle battery, and its main functions include:

Überwachung von Spannung, Strom und Temperatur in Echtzeit

Protecting the battery from overcharging, over-discharging, overcurrent, or overheating

Balancing the voltage of individual cells to extend the lifespan of the entire battery pack

Supporting intelligent data communication (SOC, power display, etc.)

In Yizhan Electronics’ battery design, the BMS is a standard configuration, ensuring safety and performance.

3. Is the stated capacity of electric bicycle batteries accurate? Can the range reach the nominal value?

Answer:
The nominal battery capacity is a theoretical value, and the actual range will be affected by the following factors:

Motor power and control system efficiency

Vehicle speed, load, and riding conditions

Temperature environment (low temperatures will reduce range)

Battery aging degree

All Yizhan Electronics batteries undergo capacity testing and aging testing before leaving the factory to ensure that the nominal capacity is accurate and reliable.

4. Are electric bicycle batteries waterproof? Are they safe to use in rainy weather?

A:
The waterproof rating depends on the battery casing design and sealing process.
Yizhan Electronics offers batteries with waterproof ratings from IP65 to IP67, supporting daily riding in rainy weather.

IP65: Protection against water jets, suitable for rainy days or light washing.

IP67: Safe for short-term immersion (within 1 meter, 30 minutes).

At the same time, the BMS is integrated with the casing design to ensure that electronic components are protected from water damage.

5. Are electric bicycle batteries from different brands interchangeable?

A:
Interchangeability is not recommended. Batteries from different brands or models have significant differences in voltage, capacity, BMS parameters, and interface design.
Unauthorized replacement may lead to:

Battery and motor mismatch

BMS-Fehlfunktion

Potential safety hazards

Yizhan Electronics recommends using original or customized batteries that match the entire vehicle to ensure safety and performance.

6. What are the advantages of customized electric bicycle batteries?

A:
For brand customers, customized batteries can achieve:

Perfect match with the vehicle structure, appearance, and interface

Optimized voltage, current, and capacity based on usage scenarios

Customized protection level and BMS functions

Support for brand logos and exclusive casing designs

Yizhan Electronics has its own factory and can provide one-stop customized services from cell selection to mass production and delivery.

7. How to safely charge and discharge electric bicycle batteries?

A:

Use the original or compatible charger, avoid improper fast charging

Do not charge in high-temperature environments

When not in use for a long time, keep the battery charge between 40–60%

Avoid frequent complete discharge or overcharging

Combined with the protection functions of the BMS, this can maximize battery life and ensure safety.

Schlussfolgerung

The electric bicycle battery is the core of the vehicle’s performance and safety. A high-quality battery requires reliable BMS management, reasonable capacity design, and rigorous factory testing.

Yizhan Electronics, as a professional lithium battery factory, is committed to providing safe, stable, and mass-producible customized battery solutions for global electric bicycle brands, helping brands enhance their competitiveness and meet users’ riding experience needs.

If you are looking for a reliable electric bicycle battery partner, please contact us. Yizhan Electronics will provide professional technical support and mass production services.