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I have a 99 jeep wrangler and have had 2 new batteries and the battery keeps going dead...any solutions?

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Hey there, There could possibly be a problem with the internals of the Alternator.The voltage regulator controls the alternator output and knows when the battery needs charging and when it is full. It keeps the electronic systems in the car at about 14-14.8v. If it is faulty it can over charge the battery and ruin it in a short period of time. Have an auto electrician check the alternator before you replace the battery again.Hope that helps

i have a 99 jeep wrangler and have had 2 new batte - 12_29_2012_11_36_30_pm.jpg

Posted on Dec 29, 2012

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Have you checked the alternator

Posted on Dec 29, 2012

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Alternator is probably n/g it may charge under normal running,but when lights heater defroster are on it can't handle the extra load,which now causes the power to be taken back from the battery running it down,could also be a bad batt cable or connection

Posted on Dec 29, 2012

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Posted on Jan 02, 2017

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SOURCE: 1991 jeep wrangler: alternator overcharging

It sounds as the voltage regulator which is built into the back of the alternator has stuck. Occaisionally this even happens on new ones. Would suggest taking the alternator back as it shoud be under warranty.

Posted on Jul 06, 2009

txkjun
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SOURCE: Something keeps DRAINING the battery?

If you disconnect the negative battery cable and connect a 12V test light between the battery negative post and the negative battery cable terminal the light will burn if there's a draw. Make sure all electrical consumers are off and all doors closed when doing this draw test. If the light is on start pulling 1 fuse at a time until the light goes out, when it goes out that's the circuit that has the draw. Trace it from there.

Posted on Mar 02, 2010

  • 1 Answer

SOURCE: battery keeps going dead

I have a 2008 Jeep Grand Cherokee. The battery and alternator have recently been replaced, but sometimes my car still won't start. I'll put the battery pack and it and charge it and off it goes with no problem, then a few days later the same problem occurs. The cables have been cleaned. Any thoughts? Thanks

Posted on Sep 19, 2009

  • 1 Answer

SOURCE: Immobiliser for Jeep Wrangler TJ

Burn it

Posted on May 26, 2010

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SOURCE: battery keeps going dead. Brand new battery i

something draining the battery .check blower motor sometimes keeps running even when indicating it is off .remove battery terminal and tap against the terminal to see if there any large sparks.if they are . remove fuses one by one as u test till the spark is not there .find out what links are used on that link and disconect one by one when the fuse is on and test if the large spark is still there

Posted on Jul 26, 2010

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