I use a brand called "Rolls" batteries. They were originally made for the demands of commercial boats. They cost about twice as much as a Les Schwab battery, so depending on how much you use your trolling motor, depends on if you want to spend the bucks. I use mine alot, I mean alot. I have a bass boat, and all time spent fishing is on the trolling motor, when I troll for salmon or steelhead out of my skiff, I use the electric (same batt's, diff. boat).

These batteries have a seven year warrenty. (Pro-rated) They are the heaviest battery for group size I've ever hoisted (lot's and lot's of lead) I'm on my third year with this pair and can't notice any loss of power. With my old les Schwabs or Delco's I would get two seasons max, with the end of the second season being about 1/2 of their original power.

One thing, whatever brand you choose, is keep them on some sort of trickle charger on the off season. A little on board "guest" type charger is great for this and will prolong youre battery life.

Trojan batteries are also pretty good. Alot of the other bass guys I know run those. So are some of the dry cells. I have no experiance with those, but have heard good things.

Good luck,

And definitly pick up the West marine catalog. A wealth of boating hints and tips in it.

Aaron