Powertech 12V 140A Dual Battery Isolator Kit

Adding a second battery in your vehicle enables you to power your electrics without flattening your main starter battery when the engine is off. This Voltage Sensitive Relay (VSR) kit provides everything you need to wire up your second battery, while handling the isolation during shut-off periods. It is provided with marine-grade hardware so it can be used on a boat or vehicle. Suitable for 12V systems with a continuous rating of 140A. All wiring hardware and instructions included. 
 

- Automatic isolation

- Priority charging for Starter Battery

- Easy to install