Quote Originally Posted by Rakoprtr View Post
I'm lookin for something that will run off batteries as I have no way to charge my batt on the water and I only carry one for my tm
Consider getting something small like a riding mower battery. It will keep all of your finder options open but won't take too much space or weigh as much as a full size TM battery. You can even go smaller with a 7ah rechargeable battery commonly used in power back-up units. A low-cost charger would give you all you need to maintain this small battery. I used one of these for quite a while before I got a HB 1197. That thing eats batteries like they're going out of style!