Nanjing Chervon Industry Co., Ltd.

Hehan Liu

Dezhong Yang

Zheng Geng

A battery pack is detachably connectable to an electric tool or a charger and includes a housing, a cell group, a first voltage monitoring module, a control module, a second voltage monitoring module and a protection module. The cell group includes a plurality of cells electrically connected to each other. The first voltage monitoring module monitors at least one of the voltage of each cell or the total voltage of the cell group. The second voltage monitoring module monitors the voltage of each cell to detect whether the cells are in an overvoltage state. The protection module is electrically connected to the second voltage monitoring module and when the second voltage monitoring module monitors that any one of the cells is in the overvoltage state, cuts off a charging path formed between the battery pack and the charger.

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Nanjing, China

Hehan Liu