If running range reduce more than 10 KM shorter suddenly, probably there is at least one battery damaged, now must inspect and repair battery in sales center or dealer maintenance department. This can extend the life of battery and save your money.
Avoid large current discharge
When e-car start, climb, loaded passenger as much as possible avoiding to put accelerator heavily. Large current discharge easily lead to sulfate crystals, so that damage battery plate physical performance.
Exposure is forbidden
E-car is prohibited to exposure in sun , battery high temperature will cause internal pressure increasing . Battery activity decrease and plates age accelerate.