“ Originally Posted by jr5416 
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Yea bro i double checked and her car is a 97 so 2 old and dead cells ?Hmm the battery was working when installed bout 2 months ago could they have gone bad that fast from not running ?
dead cells is a possibility. what you need to do is hate to say try a full battery. If even your girls. Hook it up with car off see if their is a draw off battery.You need a multimeter.could be trunk light, glove box, over head, or even hood light. Something is drawing juice and killing battery. I mean your not reversing then. I seen cables burn from bad grounds as well..so check your grounds. When you replaced alternator, you did make sure to put washers back exact way right? sometimes their insulators. and improper install will cause that...So some stuff to check. now go ....go check...lol