I drive my H216 with a lightweight trolling motor and lead acid battery. It works fine for launch/retrieval and moving around when the wind dies. I have been looking at driving the trolling motor with a lithium battery instead of lead acid which will significantly reduce the weight...2 lbs! I can get one with a 10 amp hour capacity (which is probably far more than I need) for < $100. Anyone have experience with a LI battery?