I purchased 2 new Lithium Pro's for my new boat. The weight is crazy light and that has made me rethink driving and setup some. Not the same handling as my other Bassports but I can tell it is different. I have the onboard DC Lithium Pro charger and an AC charger that I am adapting to a quick plug charger connection. As it is now the factory charger is still in the boat and will feed the new DC charger with 12 volts. The DC will charge my batteries when the big motor is running. I have 40 AH batteries and they are crazy strong and last forever. All the fear factor of these batteries "just up and dying" and leaving you on the lake would only happen to you if you just run them to death and never charge them. I have found that after a day of running the trolling motor it takes about 30 minutes or so to charge them up to full charge. I bet I can run 3 or 4 days on them in wind or current. They are that impressive. The downside is they are stupid expensive but maybe they will last 10 years or more and get me a little better fuel economy. Speed was not my motivation for getting them. Heck, I have a heavy old Ulterra up front. I also had to put 100 lbs of ballast in to get the balance right on my boat loaded with gas etc. and just me in it. But I am running a 300XS so the torque is pretty big. When I get more seat time and playing time I'll dial in and try to give another report. I am still trying props and weight distribution right now, not to mention different heights above pad.