For every application, a matching power supply unit/charger is available. The individual power supply/charger units are distinguished in particular by their permanent accumulator monitoring, voltage stabilisation and current limitation. The accumulators used with the energy supply must have been tested and approved by the VdS. For the parallel connection of accumulators, only accumulators of the same type and age and from the same production series may be used. Moreover, the regulations according to DIN VDE 0833-1 must be observed. Fully electronic, voltage stabilized and current limiting power supply/charger unit for stand by parallel operation with deep discharging protection, battery monitoring and battery defect recognition, designed for max. 140 Ah battery capacity. The power supply can be used with the hazard systems. The power supply / charger unit provides an integrated BUS-2 interface and can also be used as a remote power supply. Status and fault information is displayed via 14 LEDs. Battery types from 6.5Ah to 65Ah can be selected using DIP switches. Furthermore, two different charging characteristics are available, allowing a maximum current draw of up to 8A total current. A suitable NTC is included in the scope of delivery.