I got home to the warmth of the garage. Took the seat back off and connected all my accessories to the new battery. I took the snorkel off, so it now fits great under the seat. I've got a Russell heated seat. When I plugged the seat back in, guess what! I had left the seat on yesterday afternoon, hence the dead battery! Oh well, it looks like the Odessey 625 is a great battery anyway. Thanks for all your help!
I just called the guy who was switching my Cub Cadet from a lawnmower to a snowblower (and who's had all week to do it!). Luckily, it's been delivered at my house, so I'll have it for tomorrow. That usually means we'll get nothing!