Frequently Asked Questions about E-Bike Lithium Battery

E-bike lithium battery may encounter some common problems during use. These problems mainly involve battery performance, life, safety, and maintenance.

1. Performance problems

Reduced mileage:

Reason: The energy density of the E-bike lithium battery is reduced, which may be caused by battery aging, improper use or incorrect charging method.

Solution: Check the battery status regularly, use the correct charging method, avoid over-discharge and frequent charging to extend battery life and maintain mileage.

Reduced charging efficiency:

Reason: The internal resistance of the E-bike lithium battery increases, and the heat generated during charging increases, resulting in a decrease in charging efficiency.

Solution: Use a charger that matches the battery and avoid charging in high or low temperature environments to reduce heat generation during charging.

2. Life problems

Shortened life of the E-bike lithium battery:

Reason: The battery has a limited number of cycles. As the use time increases, the active substances inside the battery will gradually decrease, resulting in a shortened battery life.

Solution: Use the battery reasonably, avoid frequent deep discharge and charging, and perform battery maintenance regularly, such as balanced charging.

3. Safety Issues

Thermal runaway:

Cause: Internal short circuit, overcharge, over discharge or external high temperature of E-bike lithium battery may cause thermal runaway of battery, and even cause fire or explosion.

Solution: Use qualified batteries and chargers, avoid using or charging in high temperature environment, check the battery status regularly, and find and deal with abnormal conditions in time.

Leakage:

Cause: Damage or poor sealing of E-bike lithium battery shell may cause electrolyte leakage.

Solution: Avoid impact or extrusion of battery, check the battery shell regularly to see if it is intact, and replace it in time if it is damaged.

4. Use and maintenance issues

Improper charging:

Performance: Such as using unmatched charger, charging time is too long or too short, etc.

Solution: Use a charger that matches the battery, charge according to the charging time in the manual, and avoid overcharging or undercharging.

Improper storage:

Performance: Such as storing E-bike lithium battery in high temperature, humidity or severe cold environment for a long time.

Solution: Store the battery in a dry and cool place with suitable temperature, and avoid long-term exposure to extreme environment.

5. Other common problems

E-bike lithium battery water loss:

Symptoms: battery capacity decreases, thermal runaway and positive plate deformation, battery shape expansion.

Solution: pry open the battery cover and observe whether the battery is dry through the vent hole. If it is dry, add water. But be careful to add water and avoid excessive.

E-bike lithium battery imbalance:

Symptoms: one or more batteries with poor performance appear in the battery pack, resulting in a decrease in overall performance.

Solution: find batteries with similar performance to pair them up, or use a battery management system for balanced management.