It is recommended not to change.
Lithium batteries are not like lead acid batteries. Excessive overcharging or discharging will have serious consequences on the capacity of the lithium battery.
1. Since electric bicycles do not have the ability to detect battery voltage, multiple excessive discharges may cause the lithium battery to lose 30% or more, and also affect the high current discharge capacity. .
2. The capacity and model of lithium batteries should be selected according to the actual charge. It cannot be used simply by taking a set of lithium batteries.
3. Lithium batteries are too expensive. If your car is lost, the lithium battery which is more expensive than the car will be enough to worry you for a long time.