posted on Dec, 18 2011 @ 04:16 PM
It sounds like there might be a short somewhere.
My car has a short where it will randomly sound the alarm if engaged or turn lights on inside (we fixed this by pulling the fuse for that area, no
stereo, but battery doesn't die while parked at the store anymore).
You can also have the battery checked, this is almost always a courtesy check (wal mart, sears, firestone, all three of those places in my area will
do it for free whether you bought the battery there or not). That will rule out the battery.
The alternator is supposed to maintain, but its also (if you let it run for a bit or go on a long drive) charge the battery. Not a fast thing, but its
supposed to have a surplus to recharge while using electricity.
I would check the light in the glove compartment, its easy, just remove it and see if it still drains. (you can keep the bulb in there so you don't
Watch this video (its about how an alternator works), its very good and gives you the main reasons why they fail and if your not a kluts, you can take
it apart to check. (and if you don't feel comfy with that, there are mechanics)
edit on 18-12-2011 by calnorak because: (no reason