I have used a Rhodan 36v for about 4 years. A few problems, at first, but they handled them. I use a battery company out of south Florida called Abyss . This trolling motor seems to work well with the Abyss 36 volt. It’s on a 24 foot boat and has been used many times for two days without any issues. If I’m not mistaken, the battery I use weighs less than one heavy duty deep cell marine battery. Good luck with whatever one you choose.