Guest Automatic Battery Isolator

Battery Isolator for 1 alternator / 2 battery system with up to 70 amps. The solid state device allows you to connect your engine alternator directly to both batteries without fear of overcharge, or of one higher-charged battery discharging into other lower-charged battery. Using this unique device, the batteries are electrically isolated from each other. Both your batteries are always automatically being charged whenever the engine is running. Rated for up to 70 amp alternator. For 6, 12, 24, 32 volt negative ground system.