Every night my batterey dies, i always check to make sure that nothing is on, and yet it still dies every night, does anyone know what might be happening, and what is drawing power while the car and everything else is off? It's a brand new ACDelco battery and i charged it last night and now tonight its dead again?

 

Assuming the new battery is good and can hold a charge, I'd try first to get lucky and see if it is something with an electrical motor that is draining your battery when the car is off. For instance, my car has those inflatable seatbacks, and my battery would be dead every morning too. When I put my ear near the motor for it when the car was off, I could hear it running for no apparent reason. It needs to be rewired, but for now I just yanked the fuse. Problem solved.

After that, it is a voltmeter and wiring diagrams to see what is drawing power when it shouldn't. Another idea I thought of to help narrow it down is try pulling individual fuses one at a time and see if one morning the fuse you pulled stopped the battery from draining. That would help get you in the ballpark at least.

Good luck.

 

A simple check for a drain: Disconnect the NEG battery cable, Place 1 lead of a test light on the NEG battery terminal and the other end of the test light on the disconnected NEG battery cable. If light goes on (make sure doors are closed-dome light will cause light to go on), go in car and pull fuses 1 at a time until light goes out. when light goes out you have isolated the circuit. Check a wiring diagram from there. If all fuses are pulled and light is still on, disconnect alternator & remove fusible links from starter one at a time.
1st place to check is always any aftermarket device - they have a way of introducing electrical Gremlins into cars.
Good Luck,
Corky

 

Well you could just have a bad battery too. Electrical shorts are hard to get in my opinion. I had a brand new battery that had bad cells from the store. it died in 3 weeks.

 

i found today that my little sisters where screwing around in the car and left the cruise control switch on, could that be what is draining the power?