Automotive 12V Battery Isolator (50A)

Automotive 12V Battery Isolator (50A)

Item: 50 amp battery isolator
Cut-out Voltage: 12.8V
Cut-in Voltage: 13.2V
Current Draw - Charging: 250mA
Wide application: Universal for all cars
Operating voltage: 12V
Size: 85x45x40mm (LxWxH)
cut in voltage: 13.3V
cut out voltage: 12.8V
Fit for: Car /Marine /Caravan/ Cars Vehicles, ATVs, UTVs etc.
Name: Aftermarket 12V Battery Isolator (50A)

Voltage: Operates on 12 DC only
Continuous Max Current: 50A
Current Draw - Standby: 10mA
Delay: Cut In 15 Seconds / Disconnect 15 Seconds
Recommended Fuse: 50Amp
Power Studs: M6 brass with tin plate
Nuts brass with Nickel plate
Surge Protection: Built-in

How does it work: When the vehicle's engine is running, the alternator will charge the Start Battery. Once the Start Battery has reached 13.20V the isolator will wait 15 seconds then connect the Start and Auxiliary Batteries enabling them to charge simultaneously. When the vehicle's engine is not running, the alternator is no longer charging so the Start Battery voltage will drop. Once the Start Battery voltage is below 12.8V after 15 seconds the VSR will disconnect the Start Battery from the Auxiliary Battery. This means the Auxiliary Battery can NOT drain the Start Battery.

Installing the VSR 1: Connect the (+) positive wire from the Start Battery to the terminal on the VSR marked Main. 2. Connect the (+) positive wire going to the Auxiliary Battery's positive terminal to the other terminal on the VSR. 3. Connect the thin black earth wire to either the vehicle chassis or the Start Battery's negative terminal. 4. Secure the VSR in place.

Important: It is recommended that a 50 Amp fuse is installed between the Starter Battery and the VSR. The negative wire will run from the Starter Battery terminal through to the Auxiliary Battery either directly or via the vehicle chassis. There is a delay built into the VSR which means it can take up to 15 seconds for the VSR to connect or disconnect. The VSR has a light built in which will illuminate when the VSR is engaged (both batteries are connected). If the VSR does not disconnect when you switch the vehicle engine off try turning your high beam lights on for a few minutes

Aftermarket 12V Battery Isolator (50A)