Patent ID: 8432136
Filing Date: 2013-04-30
Classification: H01M,H02J,Y02B,Y02E

Abstract:
1. A battery pack system, comprising: a battery charger comprising a battery charger side connector provided with a first charging current pin, a second charging current pin, a first signal pin, and a second signal pin, the first and second charging current pins for supplying currents, lengths of the first and second signal pins being shorter than lengths of the first and second charging current pins; and a rechargeable battery pack to be recharged by the battery charger comprising; the battery charger comprises a current controller that supplies the currents according to the optimal charging current values from the battery pack to the batteries in the battery pack, and when engaging of the first groove and the first signal pin and engaging of the second groove and the second signal pin are canceled, the current controller stops supply of the currents.