An energy accumulator arrangement for an electromedical implant includes a battery, a capacitor, and a charging device which is designed to supply an electric charge from the battery to the capacitor according to a charging program. A maintenance system for maintaining the energy accumulator arrangement includes a monitoring device contained in the implant which captures a physical parameter value of the energy accumulator arrangement; an evaluation unit for evaluating the captured physical parameter value and generating a resulting evaluation result signal; a transceiver contained in the implant which sends the captured physical parameter value to the evaluation unit, and receive the evaluation result signal generated by the evaluation unit; and additionally a control unit contained in the implant which controls the charging device and the monitoring device, and adapts the charging program as a function of the evaluation result signal.