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Blaze379

Second Battery

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I am installing a second battery in my 07 Prowler. How do I wire it up so the stereo doesn't drain the main battery, but the second battery can still charge

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If you run the batteries in series, it will drain from both. You need to split the connection from the alt/charge at the source and run seperate positive and negative wires.

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Ok, it's awhile. New update, installed two large dry cell batteries under the seat. One for the stereo and the other is the engine battery. Installed a relay between then so when the engine is running both batteries charge. I also replaced the stock starter with one from the xtx 1000. Much better torque.

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Yes, you must have a battery isolator so that one battery, if it develops an internal short or a bad cell, it won't draw down the only good battery you have left.  If I were to add a 2nd battery (which I am considering), it would be a deep cycle battery specifically for the winch.  Buy a commercial one rated for your expected load.  Easier to install.

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