I have a battery drain and I can't spot the problem

10

Asked by Dec 12, 2015 at 01:02 PM about the 2001 Dodge Durango Sport

Question type: Maintenance & Repair

I have a 2001 Dodge Durango SLT 2WD / 5.9L engine. For weeks, I have had
to disconnect my battery while I leave the car overnight. Something is killing
the battery and I have tried checking for lights staying on (dome lights, glove
compartments, doors, etc). I would try the fuses but even though I can't
identify them, I have pulled them off and they seem fine. Any ideas??

12 Answers

52,155

If you have an amp meter, disconnect the positive battery terminal and hook up the amp meter between the battery and the cable with it set on amps at a low setting. If there is a drain, then go inside and pull fuses until you find which circuit the drain is on. A helper will make it go a lot faster. A battery that is at the end of its life span could also be the problem.

1 out of 1 people think this is helpful.
52,155

Your computer may draw a few milliamps which is normal.

1 out of 1 people think this is helpful.
10

I actually got this battery about 8 months ago. I got it tested by the auto parts store and told me that it was fine. They also told me that I may have a drain on the battery, due to a "short" in the system. I do have an amp meter, but I heard that it's safer to test this with the negative cable. Does that matter?

52,155

Either cable is fine. I was looking for one of these and finally found one which I may have to buy --- http://www.amazon.com/ESI-303B- Fuse-Buddy-Adapter/dp/B000TQ15E0

1 out of 1 people think this is helpful.
52,155

These could also be helpful --- http://www.amazon.com/GTC- CT6100-Fuse-Socket- Connector/dp/B001TCXOTW/ref=pd_bxgy_263_img_3? ie=UTF8&refRID=1FVPP1BSECEZ2BSHJ2A2

1 out of 1 people think this is helpful.
10

I'm gonna try that. However, I think I may start checking with my meter today. One last question: Should my power windows still work when I pull the key out of the ignition?

52,155

Not sure on a Dodge but my Fords will work until I open the door and my Subarus will not work at all unless the key is on.

1 out of 1 people think this is helpful.
52,155

Keep in mind that your amp meter can probably only measure a large amp draw for a short period of time before it over heats.

1 out of 1 people think this is helpful.
10

How much would you say it's a large amp draw? And which settings should I use??

52,155

I would check your owners manual. Yours is rated for ten amps but I would guess that would be just for a few seconds. If you don't have a manual you probably can download one.

52,155

I would start with the meter on the highest amp setting and turn it down until I get a reading if any. Again, check your owners manual for recommendations. I have different meters so I can't say for sure.

1 out of 1 people think this is helpful.
10

Thank you so much for your help. I really appreciate it. I will come back to this forum to post my findings and results. Have a great day!

1 out of 1 people think this is helpful.

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