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post #1 of 4 Old May 22nd, 2012, 03:50 PM Thread Starter
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I just bought a new rzr 800 and have a winch stereo and heater i want to put a nother battery in it but they want $300 for an aux battery kit and that dont include the battery. I was wondering if I could just put another battery in it and just run a pos and neg cable to the existing battery? would it work pretty much the same as if I bought the kit?
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post #2 of 4 Old May 22nd, 2012, 04:00 PM
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Re: Battery

it will work fine that way only thing is if it goes dead both are dead... alot keep the two batterys on a seprate system... when i did mine i didnt care about that i just wanted the extra amps of both batterys so i just hooked both together, pos to pos and neg to neg... lots of amps and never gone dead. alot cheeper too.

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running makin trax afco shocks and springs
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post #3 of 4 Old May 22nd, 2012, 04:23 PM
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Re: Battery

You don't need the kit . Just buy an isolator on ebay for 35-40 dollars and build your own kit.
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post #4 of 4 Old May 22nd, 2012, 06:56 PM
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Re: Battery

Here's a full write-up for doing a dual battery install with isolator.

You can get a second battery for around $120 (AGM at and an isolator (a voltage sensing type) for around $80. All links are in my post for the DIY. You'll be glad you did it.

Link to => Dual Battery Install

2014 XP1000
2009 RZR-s, pretty much stock - except the 800W 5-Channel Alpine Amp under the hood and 5 speaker system to boot!
Now only one 700 Raptor
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