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Expert
60 Answers
- Posted on May 14, 2009
Re: Unknown drain on battery often dead overnight . Where...
Get the altenator checked along with your battery. make sure the lights and every thing is off when you exit the vehicle. if it aint that then you got a wire somewhere that is doing something to keep something on.
The battery checks out good (new)
I guess you could pull fuses with the key off, and see if they spark when you put them back in. Some of them will spark even when the key is off, but it might narrow it down for you. There are no lights staying on, right? Tailights, interior... etc.
Are you sure it isn't the battery itself? Take the cable off tonight, and see if it is dead or alive in the morning. Quite often, batteries that are poor, will hold a charge for a few hours, but not for 12 or more.
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