I'm in the process of designing my dual battery install. I want a AGM battery in a battery box (which has a cigar and hella socket on in). I want the battery box somewhat portable also when camping so I can take out the fridge and run lights etc whilst not in the car.
I hope to have a Fusebox which has my UHF, Cigar socket, hella sockets etc wired to a load changeover relay so that when my ignition is on, the load on the fusebox is from the MAIN battery (and allows the battery charger to charge the AUX battery), and when the ignition is off the load or battery drain is from my AUX battery. I have put together a little diagram and dont know any auto sparkys to check this over. If anyone has any comments or can highlight any issue with this setup Id be glad to hear them.
This little project is on a budget so I will be going for the ABR sidewinder DC->DC charger. http://www.sidewinder.com.au/page168aa.html It uses the ignition sense wire to start the charging process (blue wire on diagram). Ive used this to control my load changeover relay.
I hope to have a Fusebox which has my UHF, Cigar socket, hella sockets etc wired to a load changeover relay so that when my ignition is on, the load on the fusebox is from the MAIN battery (and allows the battery charger to charge the AUX battery), and when the ignition is off the load or battery drain is from my AUX battery. I have put together a little diagram and dont know any auto sparkys to check this over. If anyone has any comments or can highlight any issue with this setup Id be glad to hear them.
This little project is on a budget so I will be going for the ABR sidewinder DC->DC charger. http://www.sidewinder.com.au/page168aa.html It uses the ignition sense wire to start the charging process (blue wire on diagram). Ive used this to control my load changeover relay.
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