battery losing charge when off

Gamesy · #1 12-22-2009, 07:31 PM

once again i went to go start my car and the battery didnt have enough charge in it. Why is it losing power when the car is off?

SoCal LS-L · #2 12-22-2009, 07:36 PM

All batteries lose amperage when they get cold..... your battery is probably bad and just cant output enough when the engine and battery cool off. We sell 300% more batteries as soon as the weather turns cold up in tahoe.

Gamesy · #3 12-23-2009, 12:41 AM

I've gotten my battery tested multiple times. and it was fine.... i wonder if i unhooked the + off the battery it may be fine. I wonder why my brother's battery isnt getting affected and his is foaming with acid ( i dont care about his honda :P)

Subix · #4 12-23-2009, 04:38 AM

Quote:

Originally Posted by Gamesy

I've gotten my battery tested multiple times. and it was fine.... i wonder if i unhooked the + off the battery it may be fine. I wonder why my brother's battery isnt getting affected and his is foaming with acid ( i dont care about his honda :P)

They tested mine good too. I bought a new one (this was last year) and my problems went away.

Blacky · #5 12-23-2009, 05:58 AM

There is something slowly drawing power. Mine has been doing this for a while too. If I don't use it for a few days the battery dies.
You can hook up a multimeter to the battery in series and one by one remove and replace fuses until you find which circuit is drawing power with the engine/ignition off. This will narrow down where the problem is.

SoCal LS-L · #6 12-23-2009, 09:27 AM

Quote:

Originally Posted by Blacky

You can hook up a multimeter to the battery in series and one by one remove and replace fuses until you find which circuit is drawing power with the engine/ignition off. This will narrow down where the problem is.

+1 on that.

You may also consider than each time you fully discharge a car battery, it is thought they lose 20% of their life. Depending on how many times this has happened, you may want to check it again and maybe get it replaced under warranty.

Gamesy · #7 12-23-2009, 09:38 PM

I noticed that my heated mirrors button was on and i cant remember the last time i turned em on was but i wonder if they stay on when the car is off. i'll find out now if my battery dies or not.