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  1. L

    First build and battery seems to die too quick.

    My suggestions: 1. Ask what cells are being used (doesn't mean you'll get an honest answer) 2. From my experience (we assemble ebike batteries in SA), Samsung, Panasonic, Sanyo, Sony are fine - there may be others. Once you know the brand an model number, google it and check the specs - Ah...
  2. L

    First build and battery seems to die too quick.

    PS - also, the max amp draw of the cells in parallel must also equal around 30A for that motor. That means for a 3P battery, each cell must have a max amp draw of at least 10A. 3 x 10 = 30. cheap cells will never accomplish this. Also, good quality low Ah cells often do not - some examples...
  3. L

    First build and battery seems to die too quick.

    Hi 13S is correct for a 48V battery. 13 x 3.7V = 48.1V Lithium ion cells operate between around 28V (when drained) and 42 volts (when fully charged) The battery's capacity will depend on the capacity of each cell. if for instance each cell is 2.6Ah, then a 3P battery will give you...
  4. L

    Two Wheel Drive

    I'm considering assembling a 2WD fat bike using 2 x 48V 500W geared hub motors. 1. Can I connect 1 x KT LCD3 to two controllers - I don't know anyone who has done this 2. I assume I can connect a single throttle to two controllers 3. I assume I can connect the pedal assist sensor to both...
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    Bosch / Yamaha ebike battery BMS Clone

    HI I'm based in South Africa and my small company Relectro, inter alia, assembles and refurbishes lithium ion batteries. We stock PCMs (10S, 13S, 14S and 16S) where the requirements are 2 wires for charging, two for a switch and two for power. We are increasingly receiving requests from...
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