Battery Wont charge - JeepForum.com
 
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post #1 of 7 Old 01-15-2014, 11:17 AM Thread Starter
tmredmond
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1996 ZJ 
 
Join Date: Jan 2014
Location: Lynchburg
Posts: 4
Battery Wont charge

My ZJ has a new battery, new alternator, and clean terminals and will not charge. If I charge it up it will turn on, but about a min later the battery gauge drops to zero.

My next guess is to replace the alternator plugs.

Also, the battery is oversized, but I was told that shouldn't be an issue, could that cause this?

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post #2 of 7 Old 01-15-2014, 11:27 AM
jorhay
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1997 ZJ 
 
Join Date: May 2009
Location: Chattanooga
Posts: 114
Garage
It might be the voltage regulator, not the battery. Have you had the new pieces checked to see if they hold a charge or output a charge?
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post #3 of 7 Old 01-15-2014, 11:43 AM
txbass06
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1998 ZJ 
 
Join Date: Dec 2012
Location: Texarkana
Posts: 602
Isn't the voltage regulator built into the PCM?
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post #4 of 7 Old 01-15-2014, 11:48 AM
jm8881
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1996 ZJ 
 
Join Date: Oct 2005
Location: Palm Desert
Posts: 827
That's odd. If the battery is fully charged then the jeep should run for more than a few minutes.
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post #5 of 7 Old 01-15-2014, 11:49 AM
jm8881
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Quote:
Originally Posted by txbass06 View Post
Isn't the voltage regulator built into the PCM?
Yes it is.
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post #6 of 7 Old 01-15-2014, 11:53 AM Thread Starter
tmredmond
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1996 ZJ 
 
Join Date: Jan 2014
Location: Lynchburg
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Quote:
Originally Posted by jm8881 View Post
That's odd. If the battery is fully charged then the jeep should run for more than a few minutes.
It will run, it just reads the battery at zero.
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post #7 of 7 Old 01-15-2014, 11:54 AM Thread Starter
tmredmond
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1996 ZJ 
 
Join Date: Jan 2014
Location: Lynchburg
Posts: 4
Quote:
Originally Posted by jorhay View Post
It might be the voltage regulator, not the battery. Have you had the new pieces checked to see if they hold a charge or output a charge?
I have not.
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Tags
alternator issue , battery , grand cherokee , wiring alternator plug

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