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  1. C

    Battery & BMS Wiring Help

    Dui, The company that provided the batteries and BMS felt that my solder job was for $hit, which was probably correct. Trying to connect a 2 AWG wire to the board was very difficult. They are sending me a new BMS (for free) with the wires already soldered. So, I'll give the new one a shot...
  2. C

    Battery & BMS Wiring Help

    Correction on my first post... I said my batteries were 3.7v 100ah... they are 3.2v 100ah...
  3. C

    Battery & BMS Wiring Help

    Thanks Amberwolf... I do have the motor connected to the BMS output (P-). Which is easy, because there is no C-... B- on one side and P- on the other. WEll... in going to collect an answer to your second question (what is the spike current when the motor turns on, which was 30 amps) there...
  4. C

    Battery & BMS Wiring Help

    Thanks for the replies. The contactor is rated 48v 600a. I just checked the voltage of the battery pack and it was 52.4V (and each cell individually was 3.28v). I completed all the wiring and it worked... the motor was drawing ~20amps. However, after about 15-30 seconds the BMS was getting...
  5. C

    Battery & BMS Wiring Help

    So, the company I got the batteries and BMS from posted a video to youtube showing me how to wire up the batteries and BMS. Got it all done yesterday and tested today with no problems. Now I'm preparing to wire up the other components in the circuit to test the motor. Couple more questions...
  6. C

    Commercial mower conversion. Need help

    hello, I've been in the process of doing the exact same conversion (Exmark 32" walk-behind). Here is a pic: I just received my 48v 100ah battery back w/ BMS, and getting ready to wire up the circuit. I'm using the same ME1004 motor... Curious how your project turned out? Did you ever figure...
  7. C

    Battery & BMS Wiring Help

    I'm converting an old lawnmower from gas to electric. Made tremendous progress, but on Monday I received my batteries and BMS and fear caused progress to grind to a halt... Here is a pic of my monster: The battery pack is 48v 100ah comprised of 16 individual 3.7v 100ah packs. Here is a pic...
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