"Looking for a rely or isolator? Check out the 200 Amp Relay and Isolator! Use a relay with multiple battery installs and help prevent draining all batteries for safe starting. Using an isolator when adding a second battery will keep the batteries from discharging each other and allow you to run accessories from the secondary battery without draining the primary battery. When installed correctly per instructions, the 2 batteries are automatically connected when the vehicle is started and running and disconnected when the vehicle is off. SGP Series high-current relays can also be used in applications requiring 80 amp to 500 amp current like motors, winches, commercial equipment, etc. The 2 small terminals are for switching the relay on and off. Either of the small terminals should be connected to chassis ground or other ground location and the other terminal to switching power output. Switching power must be between 10 volts DC and 16 volts DC. The relay coil draws less than 1 amp when switched on."
200 AMP Battery Isolator and Relay
Prevents primary battery discharge
Maximum current transfer
Extends battery life
Universal 12V Applications