THE BATTERY KEEPS DRAINING

1997 Mercury Cougar

Tiny

cstaff25

October, 30, 2012 AT 8:15 PM

The battery keeps draining. I have measured the key-off pull and it is only.15 ma. I am not an expert in electrical stuff, but I don't think that is enough to have to worry about. Since it keeps draining I went ahead and did a "fuse pull" test. After I pullled every fuse there was no significant drop. Whenever I do start the car it seems to have barely any power -> I can press the gas but it spits and sputters for a few seconds and then starts working fine. The battery drain is more important for now, I just didn't know if the latter part was relevant to that problem.

FOUND 1487 RELATED QUESTIONS

9 Answers

Tiny

saturntech9

October, 30, 2012 AT 8:20 PM

So at idle what is the battery voltage reading at the battery?

Tiny

cstaff25

October, 30, 2012 AT 8:25 PM

14.71v

Tiny

saturntech9

October, 30, 2012 AT 9:11 PM

Have you had the battery tested yet?

Tiny

cstaff25

October, 30, 2012 AT 9:18 PM

Yes the battery is good

Tiny

saturntech9

October, 30, 2012 AT 10:22 PM

I have seen batterys self discharge and load test good ethier something is draining the battery or its just not holding a charge. Try this after your done running the car remove the the negative battery cable over night and then when you go to start it hook the cable back up and see if the battery is drained?ALso please do the draw test with the test light like I posted.

Tiny

cstaff25

October, 30, 2012 AT 10:28 PM

Ok I will try these things, thanks. Also, I know the battery is losing about.16v every 1.5-2 hours.I tested this yesterday

Tiny

saturntech9

October, 30, 2012 AT 11:15 PM

Alright keep me posted.

Tiny

cstaff25

November, 8, 2012 AT 5:54 PM

Turned out to be a dome light left on and bad terminals. Thanks for your help.

Tiny

saturntech9

November, 8, 2012 AT 6:10 PM

Your welcome thats what were here for.

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