Energy-saving mode for an energy supply system with battery storage

Abstract

A mobile power supply system comprising a plurality of battery modules (12) which can be connected in series in a controllable manner to provide different voltages at an output of the power supply system, and a control unit (14) for controlling the battery modules (12), wherein each battery module (12) has: an input (22) and an output terminal (24), a battery unit (30), a bridge circuit (36) which is provided between the input terminal (22) and the output terminal (24) and is designed either to connect the battery unit to the input and output terminals – battery mode – or to connect the input terminal to the output terminal by bridging the battery unit – bridging mode –, characterized in that each battery module (12) is designed to be controlled in an operating mode and a standby mode.wherein in operating mode the bridge circuit (36) can be switched to battery mode and bridging mode and in standby mode the bridge circuit (36) is set to a state with minimal energy consumption.