I just received a clearance shorty battery the other day. I love it except it seems it will get my carto god aweful hot in about 3-4 drags and I have to let it cool down. I was thinking it may be the cart but when I put it on a different battery it doesn't have that problem ( 2 other manual standards and 1 other xl auto) Anywhoo I tried a couple other carts on it and it does the same thing..... Any ideas?? Am I doing something wrong maybe??