Join Date: Feb 2009
Location: Gympie, Queensland, Australia
I'm wanting to install dual batteries in my 94 Express, I've sorted out where I'm putting the second battery (right next to the original battery) I'm wanting everything to run off the second battery, and to use the original battery for starting only. I already have my second battery. What I'm looking for is an easy way to hook all this up. I'm not sure about how to connect for charging, but I think I have an idea on the rest (I think) would it work if I ground the second battery to the first, and connect all the wiring from the original battery's positive to the second battery's positive, with the exception of the starter motor and alternator? Still not sure how to connect for charging without drawing from the starting battery when the engine is off. Any ideas on the best way to set this up, without costing a fortune.
Thanks in advance.