Originally Posted by L27Buick
how should i test for that?
If your car was almost dead after sitting overnite, I'd be looking for a decent drain... If you just had a stock stereo than you should be able to run it all nite...
I have actually left on all of the interior lamps all evening and all nite long untill I had to go somewhere the next morning.... Battery still had plenty of juice...LMAO..
After sitting you should still be above 12v... I'd expect 12.4 or so... 12.6 would be a fully charged battery...
If you were to take a Volt Meter( I have a digital ) across the positive and negative terminals you should see the voltage drop a bit after you shut the car off... The battery should stay around 12.4 or close to it... If it keeps dropping you need to look for the sorce of the problem... One of our gear heads may have to explain a little better... I have never had to deal with this...
The last time I had a drain it was the Alternator that cause the problem.. My car was dead as a doornail in 2 hours... So I'm not exactly sure what direction to point you in... But do check and see if the battery is loosing its charge in a hurry, i.e. dropping below 12v in a short time... Wish I could be more help here..
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