FWIW, I "haul" a marine series 76 bat. with me in my sled. It powers my 8-24" led roof lights, a Humminbird 1198+360, & 2-aqua vu underwater cameras. I've never come close to depleting the battery, even after an all day, or night, trip out. Yes, it is heavy, but I really hate having to deal with the potential of losing power.