Quote Originally Posted by Dave Severson
Is it draining the battery or overcharging it!!! Check the output at the alternator, and see if you have a short somewhere that is draining the battery.... Most parts stores have an inductive amp gauge that they can check the amperage output of the alternator. A simple check to see if you have something draing the battery is to have the key off, then remove the negative cable, when you get the negative cable almost to the negative battery post, is there a spark? If there is, you have something draining the battery.
sounds like a draw to me also, thats what i'd check first. i like to add to what dave said is if its a computer car that won't work because the computer is a Constant draw on the bat., not enough to kill the bat. but enough to see a spark. the computer cant be over .002 amp draw or it will kill the bat.