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   • Freegen Explained, Q&A Session With J...  

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In this video Justin does a deep dive explaining the most exciting innovation to ebike hub motors in decades. Freegen is a novel modification to motor design that allows geared hub motors to both freewheel with no drag AND ALSO do regenerative braking. There is no longer a tradeoff of one or the other. And it does this without any of the extra complexity of a traditional controlled clutch.

This new idea from the Israeli company Charge not only solves that problem, it also provides a proportional regen based on how hard the lever is squeezed AND it can maintain that braking force even when the batteries are fully charged, something not possible with traditional controls.

0:00 Intro
0:48 To Freewheel or To Regen?
2:36 The Freegen Solution
4:36 Automatic Brake Modulation
7:57 First Prototypes
8:49 Energy Diversion with Charged Batteries
10:35 Braking with No Battery
12:38 Torque Arm Simplicity
14:18 Further Appeal
15:10 Disadvantages
16:05 Invention Hoorah

This 20 minute video premiered on Tuesday at 12pm PST and was followed by a live Q&A session from Justin and the inventors to field audience questions and discuss where this technology is headed.