Dual battery system in the CJ7

[Brick]

Guys looking at installing a dual battery system in. Mainly to run fridge.

Main thing not sure about is do you just install the system (it's a red arc ) and away you go or do you need to run new power to all the stuff you want of the second battery with power from the second battery? Does that make sense hope so

Cheers

[wrangler2010]

Hey Brick,

The battery isolator will do just that, isolate the starting battery from the auxiliary battery. This means that during normal driving both battery's will be connected and supplying power to all your assesories as well as getting charged by the cars alternator. When you stop to camp, the two batteries will remain connected until the battery voltage drops below about 12.5V then the isolator will separate them. This means that the main starting battery will not discharge anymore and will remain available to start the car the next day even if you run down the second battery completely. You will need to connect things like the fridge directly to the second battery though so it is available when the two are isolated.