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A comment on Ultralight lithium-sulfur batteries for electric airplanes. Parent comment

Re:Ultralight lithium-sulfur batteries for electric airplanes by baybal2 on Wednesday August 19, 2020 @04:40PM (#24216124)
How much RPM were you getting at your scooter, and what was the vehicle mass?

You say 5% at most... The difference in between, say, 5% and 10%, a bad and good regen is huge.

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Re:Ultralight lithium-sulfur batteries for electric airplanes by throwaway189262 on Wednesday August 19, 2020 @04:52PM (#24216266)
The RPM's are huge. Like 16k, because smaller motors are lighter for same power. Mass is generally 40lb + rider.

The RPM doesn't matter much though. Regen efficiency is around 80% from wheel to battery. With cars you get much less regen because you lose tons of energy to air at the speeds they travel.

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