The Track Feed Battery Charger is used to charge 1 or 2 or 3 or 4 lead-acid cells of 40 / 80 AH used in DC Track Circuits. These are installed in Apparatus Cases. More prevalent is the 10 Amp charger which has a Double-Pole ON/OFF Rotary Switch, 110V AC Input Terminals, and another Terminal for Earth are provided. DC Output Terminals are provided in the Front Panel. A Potential free contact is available to extend the audiovisual alarm at a remote place. A snap-acting rotary (1 Pole / 4 Way) cell selector switch is provided for selecting 1, 2, 3, or 4 cells in four positions.