I piggy backed the new 12ah set with the old 17ah set and tossed in a nimh 12ah set for good measure. Then I headed for the lake. I have never been able to to do that without dragging home at the end but not today. Today it sailed through it with battery power to spare. I did it on the chain drive bike. I tried the rhino this afternoon on the bike trail and found that I had misadjusted it again, I need to test it a few times before I head out that far. Also I need a light weight trailer for it. The one I have is too heavy I think. I think tomorrow I will ride it to home depot and look for some light weight materials.