Another question on battery isolators
Submitted: Sunday, Feb 17, 2008 at 19:04
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brushmarx
Yeah, I know, it's all detailed in the past posts, but there's so much info I've confused myself.
I have a camper trailer set up with 2 batteries and an Anderson plug connection to the car.
The towing vehicle, 99 Jackaroo petrol has one battery.
I figure I need to fit a battery isolator near the battery, and run the power and earth to the trailer.
I guess I can power a ciggie lighter in the rear of the Jackaroo for a fridge while driving, and then the power and earth continue to the trailer.
If this is correct, the main battery will recharge first, then the isolator will cause the trailer batteries to charge while providing power via the ciggie adaptor to run the fridge.
Am I right so far???
The main question, if I have the rest correct, is about the isolator if no trailer or fridge are in use.
Does the isolator need to be turned off to stop all the electricity running to the Anderson plug with nowhere to go, or does it not matter?
Cheers, and apologies if this has been covered before.
Ian
Reply By: Mainey (wa) - Sunday, Feb 17, 2008 at 21:07
Sunday, Feb 17, 2008 at 21:07
""I have a camper trailer set up with 2 batteries and an Anderson plug connection to the ... towing vehicle which has one battery. I figure I need to fit a battery isolator near the (CRANKING) battery, and run the power and earth to the trailer. Am I right so far""
Use an automatic battery isolator that will charge the CRANKING battery first. Then charge the two batteries in the Camper.
The (+) power cable runs from the Alternator to the existing CRANKING Battery, to the Battery ISOLATOR, the Anderson plug and then the TWO batteries (wired in parallel) in the Camper.
The two Camper batteries should be earthed at the Cranking battery earth.
Mainey . . .
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