Earl, I have the Wal-Mart Everstart Maxx trolling battery. I have the largest they make and I bought it in January of this year. It was 70 or 80 dollars. If I remember right the amp hours on the battery was 125 and this is a good rating for a 80 dollar battery. It beats a lot of the more expensive batteries the other companies sell. I have been real pleased with the battery so far and like puddle jumper says if you keep your receit with you, you can get a new battery just about anywhere if yours dies. These batteries have a year and a half free replacement on them also and then they are prorated after that. The other trolling batteries I bought over the years had a warranty of three months to maybe a year (not many gave you a year) and most of them were prorated type warranties. Getting a new battery for a year and a half is a pretty good deal if you have trouble. With the two batteries you will be installing and the trolling motor you have I don't think you will ever have power problems or have to quit early unless you are struck by lightening (LOL). Earl your boat will be setup killer for next tournament season. Good luck with your modifications. Wes