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Bronze Member Username: Alexv3305Tavernier, FL United States Post Number: 47 Registered: Mar-06 | Does anyone know where I could find a diagram for adding second and third batteries to a car? If not can someone explain how to install another battery? |
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Gold Member Username: TheelfkeeperStockbridge, GA USA Post Number: 1804 Registered: Feb-05 | just wire them in parallel. hook the Positives to the Positives and Negitives to the negitives. you'll need a HO Alt to keep them charged though. just adding more batteries will just let you listen longer with the car off, just adds more strain with the car on. |
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Bronze Member Username: Pricey1985Sydney, NSW Australia Post Number: 28 Registered: Jul-05 | If u want to do it properly you can buy a battery isolator relay which you connect on the positive wire. This connects the secont battery to the alternator only when it need charging and when you stop the car it disconects it automaticaly there around AUS$70. I have a second bat in my 4wd and iv just got a few switches to control when the 2nd bat is connected through a 180amp relay, this is the cheap option I found one on ebay just as an example http://cgi.ebay.com.au/Redarc-SBI12-Dual-Battery-Isolator-BRAND-NEW_W0QQitemZ463 4341175QQcategoryZ30862QQrdZ1QQcmdZViewItem |