Patent ID: 9728994
Date: 2017-08-08
CPC Classifications: H02J,Y02B,Y02E

Claim:
1. A charging device for charging an accumulator having at least one rechargeable battery cell, comprising: a charging current supply unit that is operable in a plurality of charging modes, the plurality of charging modes selectable by a user; a discharging device provided for at least one of the charging modes; and a determining device for determining a charge state of the accumulator, having a storage charging mode, wherein when the storage charging mode is activated, the accumulator is only charged to a predetermined partial charge state that is optimized with regard to a foreseeable storage of the accumulator, and wherein if the charge state determined by the determining device at a beginning of the storage charging mode is higher than the predetermined partial charge state, the discharging device discharges the accumulator to the predetermined partial charge state.