Split charge relay with red LED indicator. No alternator connection required. Max output 140 amps. Cuts in at 13.3 volts and breaks at 12.8 volts.
Allows charging of auxiliary/leisure battery bank without discharging starter battery. Simple to fit (only requires wiring from one battery to the other). Dimensions 68 L x 54 W x 68 H. Ideal for modern vehicles with powerful alternators.