100Amp Battery Disconnect Relay - Intellitec's Battery Disconnect is an easy-to-install, remote system that will allow RV owners to disconnect coach and chassis batteries with just the touch of a switch. The heart of the system is a unique latching relay, that while capable of carrying heavy coach currents, requires NO power to stay open or closed. It only draws power during activation. This relay is sealed against the elements and is designed to withstand the shock and vibration experienced in the most severe RV or boat applications. It also protects batteries from overcharging when the RV is plugged in for an extended time, and helps prevent shorts and fire hazard while working on the 12 Volt electrical system. This item is a replacement item only. It is not a stand-alone battery disconnect system. Runs on 12 Volts, 100 Amp. 1 per package.