I have charged two different batterys, it started about 2-3 weeks ago just fine but it misses kind of. First one didn't do anything, the second battery when I tried to crank it, it wouldn't turn over or even hear the starter. The fuel pump sounded like it turned on but sounded way different. I checked the battery which was originally at 12.60 volts it was at ~5.60 volts. The power locks went nuts and would not stop.

 

Grab a Helm manual, a voltmeter, and get to work testing current draw on the circuits. I would check your fuse box and see if you get any current draw on any of the circuits (pull the fuse, put the meter between the contacts to measure current) for a start. Also check your starter circuit and the wires around the starter, as well as fusible links.

 

I don't know if this would cause it but ive been trying to charge these 2 batteries all day and the one won't go past 11volts and the other won't go past 12.60volts.

 

I know that if the battery is not fully charged it can cause wierd things to happen with the electrical system. Are the door locks doing this with the fully charged battery or is this happening with the dead battery?

 

Disconnect them from the car and then charge. If the batteries are in good condition, you'll eliminate the current draw from the short in your car and allow the batteries to charge more fully. Do you have any sparking when you hookup the battery to the car?

 

I charge the batteries off the car with a trickle charger, never does it say it's fully charged but it reads around 12.6 volts or a little higher so I try it. I turn the car "ON" and everything works. As soon as I turn the key it clicks and it completely dies... Can that be from the starter? Could the starter do that to a battery?

 

I even tried a battery from my blazer which died because I put it back in the blazer and the interior lights would not even go on. I just checked it with a multimeter and it read 12.70 volts which makes no sense. The camaro battery is now charged at 13.5 but I dont wanna try it because it will probably die again.

 

bump