① The charger or battery fuse is burned out, replace the fuse;

② The battery pack cable falls off, just connect it;

③ If the battery pack charging socket is broken, replace it with a new one.

④ If the battery is damaged, you can choose to repair the battery or replace the battery with a new one.

The charging pile device itself has the function of self-check, and an alarm will be displayed if there is any abnormality. No special maintenance is required for daily use.

(1)The device is offline

(2) Missing trip

In fact, electric vehicles with lead-acid battery chargers are generally three-stage charging mode, including:

The first stage is the constant current limit voltage, with a fixed current to charge the battery.

The second stage is constant voltage current limiting, also called constant voltage charging, with a fixed voltage to charge the battery.

The third stage is trickle floating charge, also known as maintenance charging, floating charging voltage, this stage is generally 2-3 hours after the power off.

This is also why in the charging process, the power is higher at the beginning, and after charging for a few hours, the charging power gradually decreases, and the charge ends with 2~3 hours of low power

无论是恒流充电还是恒压充电，如果都是一直以某一种充电方式充电，都会有安全隐患；恒流充电，到充电快结束时，还是以固定电流充电，充电机为维持恒流，提高电压，有因为过充而损坏电池的危险。恒压充电在开始充电时，电流很大，使蓄电池发热，电液沸腾，内部化学反应急剧，有爆炸的危险。电动车部分火灾原因均因恒压持续充电导致电池自燃。