I had 2 batteries going to it on a 16 ft Lund. Never came close to running out of juice. It has the auto pilot feature using direction while trolling with the kicker for thrust. No need to touch the wheel at all giving more time to focus on fishing. Also for the spot lock automatic anchor feature for perch fishing. Mark fish hit spot lock and your on them. Never had to throw an anchor again and caught more perch than all anchored boats every time on erie. It can also be linked to humminbird fish finders to automatically go from spot to spot and follow the contour features. The unit was used very lightly. The only reason for selling is that I bought a 18 ft Lund with one allready on it. I would never fish again with out one!