vanymeren93
Member
Hooking up 2 x 12v's in my 2007 Challenger 230.
How long a positive wire do I need?
How long a positive wire do I need?
Battery Hookups - 2x12v
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DooGuy
Active Member
Depends where you mount, I have an 07 230 and put one battery on each side and then ran each to the selector switch. It was a pretty long run running along all the little turns etc. 15-20’ if I recall. I used the blue seas add a battery stuff and has worked great.
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Joe Starbuck
Member
Do you have a pic of your port side mount? I have a 2012 230, and thinking about a second battery.
DooGuy
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vanymeren93
Member
I ended up figuring it out. Having an issue though. I have power in the engine and power up at the fuse box under the dash but no accessory is working. No radio, blower, horn etc...any ideas why?
DooGuy
Active Member
How are you wired up? Two batteries in series or parallel or separate? Using the stock selector switch?
vanymeren93
Member
2 batteries in parallel, going to a perko 4-way switch.
I have power back to the starters from the common, and there's power off the common to the accessory cluster. I have power at the fuses for the accessories under the helm but nothing is working. Could it be the ground back to the engine from the accessories?
Joe Starbuck
Member
It could. I would focus on the areas you touched, since it was working before (it was working before, right?). Where did you connect the (-) terminal on the new battery? To the (-) on the old battery, or somewhere else? Also, you Perko should have three positions that should make the accessories work, A, B, and "COMBINED", and one that will make them not work "OFF". Did you try them all?
vanymeren93
Member
I hooked up battery 1 to the grounds from the engine and ran a negative off it to battery 2. Both reds from battery 1 and 2 go to each prong on the perko switch.
I tried all positions. I even went back to hook up the old switch to 1 battery as I had it before and still did not work. I had the battery out for the winter as it was in storage so there wasn't a way to tell if it was working before but it was before I put it into storage.
DooGuy
Active Member
Sounds like something shorted and blew a fuse or tripped a breaker. Youll probably have some in line fused cables off the battery switch which is where I’d start. Also double check your grounds. Make sure they’re tight
Re setup: I’ve always referred to batteries in parallel as battery 1 neg to bat 2 neg, bat 1 pos to bat 2 pos. Connection then is: bat 1 neg to ground, bat 2 pos to switch.
It’s different than parallel If you’re running combined negs then a bat 1 pos to post A on switch and bat 2 pos to post B on switch. I run this type of setup.
Re setup: I’ve always referred to batteries in parallel as battery 1 neg to bat 2 neg, bat 1 pos to bat 2 pos. Connection then is: bat 1 neg to ground, bat 2 pos to switch.
It’s different than parallel If you’re running combined negs then a bat 1 pos to post A on switch and bat 2 pos to post B on switch. I run this type of setup.
Joe Starbuck
Member
I agree with DooGuy, reset all your breakers under the console (if that is where they are). Some accessories have their own fuse, like the auto bilge pump circuit.
Did battery 1 negative go to the same spot on the engine last year?
vanymeren93
Member
So after using a test light on all the fuses and sorting out that I had power everywhere, I ran jumper cables from the accessory ground cluster under the helm back to the battery negative and got the power to the accessories. It seems somehow the ground back from that cluster to the engine had a bad connection or dislodged itself over the winter. Going to run a new ground back and should be good.
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