Newmar 1-3-165 Battery Isolator

These heavy duty isolators allow charging multiple batteries automatically from one or two alternators, and prevent discharge or ‘dumping" of one battery into another. Each battery is charged according to its need without overcharging, rated for 12, 24, or 36 volt, negative ground DC systems.

Note: This battery isolator is not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configuration