West Marine, Premium Gel, deep cycle, 97(Ampere-Hours) Group 31 It’s online now for 524.99. I’m selling mine for 150.00 because the warranty has expired, just to be completely transparent. I traded a riding lawnmower for the battery. The guy I traded it for, his company went under and they had extra batteries that had never been used. I personally took the caps off the battery and used it to start my boat one time and turned it right back off. Then I sold the boat and kept the battery for my next boat. Now I’m cleaning out my garage and want to get rid of some things. Again brand new this battery is 524.99 with a 24 month warranty, I will let it go for 150.00 since it has no warranty, and I will guarantee it for a year.