So I was wondering. Does anyone know if the regen braking charging the battery goes through the onboard charger? The reason I ask is that, as I've said in other posts, if I drive up to the top of one of the hills where I live and use Hill 2 on the 2 mile or so drive down, usually by the end of the decline I've added about 3 or so miles to my range or what I'd estimate is roughly 1 kwh. Extrapolating this, if I were continuing to go down a much taller hill for an extended period of time, wouldn't I theoretically be able to charge all 20 kwh of the battery in, say, 20-30 minutes? Would this damage the battery? How exactly does the regen recharge the battery?