ok so i just got my 97 tj 2.5 L back together. i had to replace the head gasket. it was sitting for like 8 mon due to me not having time to do anything with it. the problem i'm having is that now that i have it back together and went to start it up ( trying to jump it off ) it does not have the power to turn over. what i was wanting to know is if i did something wrong or is the batt just that dead that i cant even jump it off?