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Unread 07-07-2013, 10:32 PM   #1
ruby red
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2007 JK Wrangler 
 
Join Date: Jun 2004
Location: San Diego, California
Posts: 71
Battery Problems

I have a 2007 JK Rubicon. I installed a Warn winch, Low Jack, Karr Track & another security system (The security systems may seem a bit extreme, but my last jeep was stolen, taken down to Mexico and stripped, so Iím not taking any chances with this jeep). When I installed the last security system, my OEM battery would not support the few extras I put on the jeep. I had changed out the battery 3 times in a year; so I installed the Benchmark Designs Stage 3 Dual Battery setup and used Optima Yellow top batteries a little over a year ago. The setup worked great in the beginning, but now both batteries are dead within a weekís time. I was told after I bought the Optima, that these batteries are not that good, so maybe Iím using batteries that canít handle the extra load. I have checked every new electrical device I have installed and everything is grounded, so that is not the problem. I want to install a CB and Ham radio, but I canít until I figure out a solution to this problem. Any help would be greatly appreciated. Thanks.

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Unread 07-08-2013, 02:32 PM   #2
Vin
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2012 JK Wrangler 
 
Join Date: May 2010
Location: Long Island, New York
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First off Your security systems should not be draining that much. They are generally passive systems. I would check for an incorrect ground draining your battery.

Secondly your battery only holds so much of a charge. You still need to charge them. I'd think about upgrading your alternator as well.

Lastly Optima batteries aren't bad. Something in your rig is definitely off if you are draining 2 batteries as you say.


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Unread 07-08-2013, 09:53 PM   #3
ruby red
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Thanks, Vin. The problems started with the last security install. I will start there.
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Unread 07-09-2013, 08:43 PM   #4
JPNinPA
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2005 LJ Wrangler 
 
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Measure current draw from the battery with engine off key either on or off. If above 100ma there is an issue. Start pulling fuses until your under 50 MA. Take note of what fuse drops the most current out. That is likely your issue.
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