My girlfriend has a '92 lumina. and the battery wont stay charged. battery and alternator have both been replaced. it is really starting to pi$$ me off. it lasts about 2 days and if you dont drive it for a day it goes dead and needs to be jumped again.

on a good ntoe though i bought a motomaster eliminator battery jumper for her today incase she needs to jump her car. and at canadian tire they screwed up the prices and i got it for 39.99 instead of the regular 99.99

but im still mad the car wont work. any ideas

 

More then likely you have something drawing current when the vehicle is off look for stupid things like lights that are remaining on in the consol area trunk area etc. If you have a voltmeter fire up the car load up accecories like stereo wipers lights defroster. Voltage should stay in the 13.6 14.2 range with the vehicle on. with the vehicle off check to make sure battery is not loosing voltage keep an eye on it batt voltage should remain in the 12 .2 12.65 range. If you shut the vehicle off and notice voltage slowly dropping off at a descent rate start pulling some accesory fuses until the voltage stops dropping and that will give you a idea of what circuit is being the problem. But most of the times problems like these are just simple stupid things like a light in a glove box that has a faulty swithc and wont shut off.
Anyways have fun
Later
Mike

 

I had the light in my center console on my Z doing that if I left it for about 3 days. The switch just fell out of the holder.

 

I had the same problem as J Dove but it was in my glove box so I didnt see it till I opened it and noticed the switch came unmounted.

 

As LT1Z28 states - try that.

I know this won't apply to you directly, but my car battery dies after about 2 weeks (which is about 2x as fast as normal, I think), unless I keep it charged. Surprised me at first, untill I added up the draw from the security items on it. The LEDs for the alarm and disabler are minimal, but my cellular tracking system which is constantly searching for a signal (especially undergorund) draws a fair bit more.

Good luck in tracing it.

 

Clean the battery terminals. Think thats a side post so take the cables off and pull the bolt out and clean in there. They can corrode in there badly without being visible. If those are clean take a test light or an ammeter/voltmeter and hold it between the negative post and the negative cable (with the positive hooked up). If it shows draw then (with all the lights/ign off, doors closed) you know you have something to chase. After that, the simplest way of doing it is pulling fuses out one at a time until you light goes out/dims or your meter reads lower draw. Then look through that circuit for the draw.