Could someone check my 12s BMS wiring diagram. =)

Hello, I have finnally got a hand on all my parts that I ordered and I am planning on wiring it all up tomorrow. I was hoping I could ask a big favour if you could look over my wiring diagram for me for 12s with BMS.


  • 4x Zippy 3s 5000mAh 20c lipo batteries in series
  • SK8 4.12 Vesc
  • 12s BMS from eBay
  • 5.5x2.5mm female charge port going to laptop style charger
  • SK8 6374 motor

My hope is to balance charge with my laptop style charger and discharge directly from the batteries.

If you have any questions just ask and I will answer.

here it is! I hope it is clear enough to understand

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Here is the wiring diagram that came with the my BMS

Did this workout for you? I have a similar BMS and all 3s batteries was wanting to make sure I hook it up right.

Hey Johnathan, sorry for the late reply. Yes this worked out perfectly for me!


Where would the power button go in this diagram? I have a similar setup.

And is the last negative balance cable on the lipo pack connected to the B- port? I have an 13th wire on my BMS which Iā€™m not sure where it goes.

sorry i have been MIA. This ended up working perfectly for me!