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  1. 7

    Bms showing low voltage on one cell

    I have a 48v setup I am putting together, I’ve got it all connected but I have one cell reading 1.6 on the bms but with a multimeter it reads 3.2. I checked all the cells voltage and double checked the wiring and can’t figure it out, any advice would be appreciated.
  2. 7

    Need help! 48 volt caught fire

    I had the battery black going to the negative on the battery and the 12 volt negative going to the frame. Should I not ground the 12 volt negative on the frame?
  3. 7

    Need help! 48 volt caught fire

    Sorry I’m not a artist but this is how I had it connected.
  4. 7

    Need help! 48 volt caught fire

    Here are my BMS settings
  5. 7

    Need help! 48 volt caught fire

    The black wire that is going to the 40amp breaker is the main 12volt wire for the trailer
  6. 7

    Need help! 48 volt caught fire

    Both the black wires where connected to ground, the input one is the one that is melted was connected to the negative bus bar that had the bms going to it. I used the below diagram for the BMS
  7. 7

    Need help! 48 volt caught fire

    I am using a overkill BMS for 48volt not sure why it didn’t cut off
  8. 7

    Need help! 48 volt caught fire

    This is a picture of the actual inverter I used, it’s a 48 to 12
  9. 7

    Need help! 48 volt caught fire

    I just took it all apart to remove the bad cells, I have the the negative coming off the bms going to a bus bar and the positive off the batteries going to a bus bar. From the bus bars I have one positive and one negative going to the growatt and on positive and one negative going to the...
  10. 7

    Need help! 48 volt caught fire

    So I ordered a 30 amp ANL fuse for the converter and was thinking a 100 amp ANL fuse for the main positive that goes to the growatt. Should I do anything different? Thank you all again
  11. 7

    Need help! 48 volt caught fire

    Thank you everyone for your advice. I think my issue is the converter, it shows the yellow it + load and the red is + battery both black as - or ground. This might be a dumb question but what kind of inline fuse would you guys recommend I be using on a 48volt connection for the converter? I...
  12. 7

    Need help! 48 volt caught fire

    Hello, I need help I put together a 48 volt 3.2V 120Ah Lithium Iron Phosphate LiFePO4 battery pack. I had bms all hooked up everything was reading good I got 52 volts, i connected it to my growatt 3k all in one based off the blueprint on the mobile solar sight the only thing I had different was...
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