The battery backup has a well-proven design in black lacquered sheet metal with clear LED indication for status information on the front of the cabinet. The unit is easily mounted on a wall or in a rack with the included mounting brackets. 15PSC Has protection against overload, overvoltage, overtemperature, short circuit and deep discharge, it also offers so-called intelligent charging which by disconnecting the batteries when they are fully charged and then periodically charging the batteries can extend the life of the battery by up to 50%.