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  1. Squilt

    4kW dropout mounted RC drive

    I interrupted my recumbent trike build-in-progress to make an e-bike for my roommate to get to work. The two goals were maximum power to cost, and ease of operation and maintenance. I don't remember how I settled on each component. There was a lot of guessing around the power figure but I'm very...
  2. Squilt

    LifePO4 charging with unfiltered DC

    Can you charge a battery with a BLDC motor being spun by a gasoline engine without any filtering after rectification? If you rectify the 3 phase output, and select the correct motor kv, could you just hook that up to a battery? As long as the peak voltage in the ripple is lower than the maximum...
  3. Squilt

    RC Drive Recumbent Trike Build

    I've been planning my next build. I'll be electrifying this used recumbent trike I bought. At first I thought it was a Performer JC-26X. But that model has direct steering and this has indirect steering. I reached out to someone at Performer Cycles and learned that I have a discontinued model...
  4. Squilt

    Automatic 80% soc cutoff charger?

    I have a 13s 3p 18650 pack I made. To prolong the cycle life, I've been trying to keep amps relatively low, not discharge below 3.2v, and avoid charging over 80% soc. I got tired of trying to guess when it gets there and checking, sometimes forgetting it and having it charge to full. I tried...
  5. Squilt

    2 stage LH drive on single speed road bike

    2.7kw with a custom made 350Wh battery. Made a 2 stage reduction. 3:1 first stage, 5.4:1 second stage. I made the small sprocket removeable so I can swap between 9, 11, and 14 teeth on the fly. Current gearing gives it a 31mph max speed. Done in just over a week.
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