Battery charging device

The accumulator holding charge tray(s) is fitted in a housing and coupled to the charge electronic. It forms a resting space for the accumulator between accumulator contact elements (5).At least one contact element exerts a clamping force, against a resetting force, for the inserted accumulator. At least one tray contains a part-region (15), slidable or rotatable from the hosuing up to a stop, for application of contact elements to the accumulator located in the resting space.