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Old 02-24-2013, 08:37 PM   #1
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Join Date: Feb 2012
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running battery down

I put some running lights and fog lights on my jk. Everything works good but now if I don't drive my jk for two or three days the battery is DEAD. Like i say the lights work great . I took the jeep to parts house and they put a meater on it and told me that something is drawing .18 amps. I have checked everything. Has anyone had this happened to them.......

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Old 02-24-2013, 08:42 PM   #2
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Depends on the model and other stuff you have on your jeep. There are a lot of items that have memories and suck juice. Computers etc.

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Old 02-24-2013, 09:08 PM   #3
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The best thing to do would be to unhook whatever you installed first of all. If it still goes dead then you know that you did not cause the problem. I would think that the Jeep would be like most other modern vehicles and after the systems go to sleep it should not draw more than .05 amps. It should take from 30 to 45 minutes for the sytems to go to sleep. To make it simple it would be best for you to get a clamp on type amp meter to test this.
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Old 02-24-2013, 09:09 PM   #4
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Happened to me in the last month. Strangely, it started about 8 days after having the dealer perform routine servicing. Anyways, had to recharge the battery after 6 days, again after 8 and finally after another 6.

Dealer found an error code and they replaced the horn and cruise control switch (supposedly same switch).

It's been 7 days now and so far, working fine.
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1972 C-101 / 1984 CJ-7 / 2012 JKR
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Old 02-28-2013, 02:41 PM   #5
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Start pulling ONE fuse at a time with an amp meter attached. When you see the meter drop significantly, that's the circuit that causing the problem.
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Old 03-01-2013, 09:57 PM   #6
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Thank you all for the help
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Old 03-01-2013, 11:06 PM   #7
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are the switches for your lights illuminated? if so, did you wire the switch lights to a dedicated +12v or to a switched ignition wire?
2012 Deep Cherry Red JKU Sport S - Tickastar, 6 speed, 3.73, Dual Tops
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Old 03-02-2013, 06:03 AM   #8
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If it's still happening you'll need to check for parasitic draw.

Read something like this:
How to Find a Parasitic Battery Drain |

Usually it's a result of what was last installed. Or something failed and the instrument cluster isn't going to sleep.

With Jeep not running, Install an ammeter with a shunt, turn on lights, radio - shut all off an you should seecurrent draw on the meter drop to .01 amps within a minute or so. If it doesn't start pulling fuses to seewhat circuit is causing it. Since there are fewer circuits with a TIPM these days - hopefully you can find that it's something you installed - or a warranty item.

I use a SnapOn MT500 with a shunt kit.
'14 Anvil JKUR (sold the '12 at 52K miles)
'13 unlimited stripped sport (red one)
'13 JKU sport (blue one)
'10 Unlimited sport (other red one)
'08 Unlimited X (green one)
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Old 03-03-2013, 10:50 AM   #9
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Yes they are illuminated, I have them wired to the head light wire so when i put them on bright they will go off.

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