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  1. S

    Travel friendly 13s1p battery pack using 18500 cells, need cell and BMS recommendation.

    I am building travel friendly < 100wh battery packs for a 48V ebike motor. Originally I was going to target the Panasonic NCR18500A cell : NCR18500A - Lithium-ion Batteries - Secondary Batteries (Rechargeable Batteries) - Panasonic This cell has a capacity of 2.040 ah @ 3.6V. 13 of these in...
  2. S

    Modular 48v 100Wh battery build?

    I am wanting to build a modular ebike battery with packs in 100Wh increments so that I can fly with my bike (when COVID is over). Has anybody done this before? What would be especially awesome is if someone has made the modules in a way that they are waterproof so that I could travel with my...
  3. S

    High torque motor at 0rpm (stalled)

    Are there any motors that can generate 50Nm of torque in a stalled or 0 rpm state? I guess this would be a direct drive gearless motor? How would this work with a gearbox?
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