Do any of you have any recomendations? My two trolling motor batteries have not been holding a full charge since winter - I knew it was about time to replace them. Considering Optima's, but not set on it.

Ever since winter, my cranking battery has been a little sluggish, not getting a full charge (with alternator or trickle charger). I added two new graphs and a GPS that is drawing more power than in the past, and according to date on battery it is about time to replace. I accidentally left the master power on after my last trip out, and it completely drained it, now it won't even get close to a full charge - so a new one is probably needed.

Any suggestions or good experiences with deep cycle brands, and cranking brands - a haven't ruled out a dual purpose for the cranking battery either.