Note this is an experiment. There is some incidences of lithium batteries catching fire. In a boat, this would be horrendous. Proceed at your own risk. I am taking a risk! Don't do it as this is for entertainment purposes only! I will have an update once I run the boat. Mercury Motors has specific requirements for lithium batteries and I have no idea if this will work! If it does, I will never run out of power! LOL I will make another video after my first outing. Anything goes sideways and I will update and let you know!