I'm interested in rolling my own simple setup.
I have a hybrid style bike with an aluminum frame. I figure this is the least desirable bike... But i do not want a lot of power. Just 200-300 watts to assist up some hills.
Not interested in regen, cruise control, or anything fancy.
I am wondering if i can run batteries direct to a hub motor without a controller. I am thinking of using two 18v batteries, with one switch per battery to activate it, so that there are two speeds, 18v and 36v.
I'd like to use DeWalt batteries. The BMS in them seems adequate. I assume the BMS on those prevents them from going under the charge level that lithium batteries like.
Is this feasable?