I. Battery Space Issues
It is feasible to replace lead-acid batteries and lithium iron ion batteries with batteries of the same capacity and voltage. However, it is necessary to consider whether the battery size can still be installed in the original position, and whether it is protruding or squeezed, because squeezing and moisture can damage the battery internally and cause short circuits.
2. A charger compatible with the battery type must be used.
Lead-acid and lithium iron ion batteries, even with the same capacity and voltage, cannot be charged with the same charger because the required charging voltage and current at different stages are different. Lead-acid batteries require a high voltage charger during charging. Lithium iron ion batteries, however, have more advanced technology, so they require a constant current and constant voltage charger. Charging lithium iron ion batteries with lead-acid batteries can lead to overcharging, which poses a risk of explosion.
III. Socket Replacement
Because lead-acid batteries and lithium-ion batteries have different interfaces, you must use a matching socket when replacing the battery. Do not use it as long as it can be plugged in, as this can easily cause a short circuit in the lithium-ion battery and thus cause danger.
4. Do not use the original charging port to charge the battery after replacement.
Because of the different charging principles, using the original charging port on an electric vehicle to charge the battery can damage the circuit and cause a short circuit in the lithium iron ion battery.
5. After changing the battery, the controller does not need to be replaced.
It's important to emphasize here that you can only replace the battery with one of the same capacity and voltage. You cannot replace it with one that has a different capacity and voltage than the previous one, as doing so will burn out the controller.