I have the two 80lb thrust untits mounted on my 250 outboard. The systems works well, but I only get about 3 to 4 hour run time depending on wind and waves. Since each unit is a 24 volt motor, i have to run 4 batteries. I had the control box go out on them as well. Minn-kota sent me a new one and stood behind it. Unit works for what it is, but i would still suggest a gas kicker if that would work for your boat.