Please put my passenger to work. Peddling for 7-8 minutes can get me an extra mile. https://www.amazon.com/Generator-Powersteam-Rechargeable-flashlight-integrated/dp/B01NAU877D/ref=psdc_348967011_t1_B003GJL6GO
Not really serious about this, but it is cool to think about.
And the Rhat Racer https://www.youtube.com/watch?v=mnNebVdiJoo
And the first never-charge wheeled vehicle the Organic Transit ELF. Not that the ELF connected the pedals to the battery in any way.
You will find the pedal assistance with battery charging in the Twike 5
Its a very cool Idea, I think it only will work for emergency situations or if you exercise like that and want to create that to energy then I think will be useful 👍🏻
Love the idea of muscle backup in addition to solar backup, Ron! Now we just need to debate if the energy needed to produce the food needed to generate the calories needed to move the pedals is a sustainable solution... ;-)