A couple things I have figured out....
#1 clean the battery if the draw is too hard....sometimes the little holes are just clogged up. I use a dental pick. Also...buy a tube of Noalox at the auto parts store
#2 Sometimes it's because I have overfilled the cart. So I just take it off and blow out the extra juice and it's fine.
#3I have had a few carts where the paper label isn't lined up perfectly and the paper is covering up the notches on the cart. Single edge razor blade works wonders.
That said........is there a converse to the toothpick trick? I realize I might ruin the battery so I'll be taking a chance but couldn't you just drill an extra hole? Or widen the existing ones?
Thanks for posting your tips Lorikay13. I am not sure what Noalox is, or how you use it to help the battery draw situation. Can you please elaborate on that a bit.