Collection: Electronic Isolators

Electronic isolators keep your starting battery protected while your auxiliary battery charges from the alternator. They connect the two batteries when the vehicle is running and separate them when the engine is off, so fridges, lights and accessories never flatten your cranking battery.

This range includes Projecta 100A and 150A electronic isolators, available on their own or as complete kits, plus the Intervolt 100A electronic isolator. They suit 12V dual battery setups in 4WDs, utes, caravans and campers. Voltage Electrical Supplies can help you match the right isolator and cabling to your system.