fechter wrote:After killing a few more brain cells, I figured out a way to make it work without a dc-dc converter and still work at low speeds.
For the brushed version, I don't see any way around the dc-dc.
I believe the free-wheeling concept of the geared Puma's will be more energy effective than regen. Every time you coast, the drag of the hubmotor is sapping momentum that you have to use battery power to replenish next time you hit the throttle. If you coast as much as I do at the beach, I expect the waste from drag exceeds the potential gain from regen.
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