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  1. Sajeel

    C rate, battery, charging and charger?

    Quick question: I have some Samsung 50G cells (4900 mAh) that I want to build a battery pack of and find a suitable charger. For optimal cycle life it's stated that they should not be discharged above 1C ~4900 mAh/hour ~4.9A(?) I'm building a 14S5P pack. What about charging? In order to...
  2. Sajeel

    Help needed: Step up converter / Buck converter for charging batteries

    Dear Endless Spheres TLDR: Can I limit CC charge to 1.6A from the output of a step up converter? If so, how? Can I control when the step up converter goes from CC to CV? If so, how? Is it possible to use a DC source 40V @ 5A (200 W) as input to the step up converter, having the step up...
  3. Sajeel

    First eBike build with longevity in mind - Samsung 50G MTB Front Hub (Now rear hub)

    Hello Endless Spherers! I've had a 48v 1000W kit conversion kit laying around for 2 years (Aliexpress). I sold my car and now I'm looking to do my first eBike build! Originally I planned on making a sleeper dutch bike, but I have lowered my own expectations due to difficulties finding a...
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