Thanks JHZR2!

I was thinking that it was probably a short somewhere. When I put a voltmeter on the terminals it read about .4A. (without cables connected)

I wasn't really sure what that meant. Should there be current flowing from positive to negative with the cables disconnected? Half an amp seemed like a lot to me, but I'm not really that knowledgeable about electrical.

Tomorrow I will double check myself, and see if the current is going to the chassis.

When Sears tested the battery they just bench charged it and let it sit over night to see if it would lose it's charge.