dead battery
Thread Starter
Member
Joined: Jan 2010
Posts: 237
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From: Bradenton FL
Year: 1992
Model: Cherokee
Engine: 4.0L
My battery constantly goes dead if the vehicle sits more than one day. I have .25 amp draw. I removed the radio then it droped to zero. Could that be it or is it something else.
Seasoned Member
Joined: Sep 2010
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From: Juneau, AK
Year: 1998
Model: Cherokee
Engine: 4.0
That could be it, but normally a radio clock and battery-backup won't drain a battery overnight. Have you checked it at night to see if a dome light is left on? Check all those bulbs (pull them to be sure) and then re-insert one by one until you find the culprit.
Thread Starter
Member
Joined: Jan 2010
Posts: 237
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From: Bradenton FL
Year: 1992
Model: Cherokee
Engine: 4.0L
That what I thought, the radio shouldnt drain it overnite that soon. I checked the lights and nothing.
Senior Member
Joined: Jul 2010
Posts: 501
Likes: 2
From: Connecticut
Year: 98
Model: Cherokee
Engine: 4.0l
Try using a light bulb between the - battery terminal and the - terminal of the battery. It will probably glow pretty bright. Pull fuses till it goes dim and then trace from that fuse. The bulb has to be a higher wattage lamp to eliminate false readings.
Last edited by bobvalli; Nov 3, 2010 at 04:11 PM.
Thread Starter
Member
Joined: Jan 2010
Posts: 237
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From: Bradenton FL
Year: 1992
Model: Cherokee
Engine: 4.0L
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Thread Starter
Member
Joined: Jan 2010
Posts: 237
Likes: 0
From: Bradenton FL
Year: 1992
Model: Cherokee
Engine: 4.0L
Seasoned Member
Joined: Sep 2009
Posts: 454
Likes: 0
From: East Texas
Year: 1997
Model: Grand Cherokee
Engine: 4.0
The IOD is the ignition off draw fuse. It is the only fuse that allows power when the ignition is switched off. This allows certain things to operate with key off; interior lights, radio memory, hazard lights, etc. The draw is normal, a low amount and should not deplete your battery.
Try pulling the IOD and see if your battery goes dead.
Thread Starter
Member
Joined: Jan 2010
Posts: 237
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From: Bradenton FL
Year: 1992
Model: Cherokee
Engine: 4.0L
The IOD is the ignition off draw fuse. It is the only fuse that allows power when the ignition is switched off. This allows certain things to operate with key off; interior lights, radio memory, hazard lights, etc. The draw is normal, a low amount and should not deplete your battery.
Try pulling the IOD and see if your battery goes dead.
Try pulling the IOD and see if your battery goes dead.
Seasoned Member
Joined: Sep 2009
Posts: 454
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From: East Texas
Year: 1997
Model: Grand Cherokee
Engine: 4.0
No, I don't think so. Since you testing does not show any draw except the IOD, remove it and see what happens. It could be that something is staying energized but not visible. If the battery goes dead again then you can trace the items powered by that fuse.
Thread Starter
Member
Joined: Jan 2010
Posts: 237
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From: Bradenton FL
Year: 1992
Model: Cherokee
Engine: 4.0L
I removed my radio and the draw went down to 0 so now I have recheck
in a few. Damn it.
Seasoned Member
Joined: Sep 2009
Posts: 454
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From: East Texas
Year: 1997
Model: Grand Cherokee
Engine: 4.0
Take the battery to an auto shop and have it load tested and see what it shows. The battery may just not hold a charge. If there is no load on the battery, it should not go dead overnight.


