PCB based Battery Modules - https://jag35.com/products/diy-18650-battery-module-5x-populated
BMS Module - https://jag35.com/products/bms-module-kit
BG-8S Meter - https://j35.us/BattGo-BG-8S
MultiMeter - https://amzn.to/3jtof7F
FAQ:
1) Where can learn more about batteries? http://j35.us/DIYlithiumBatteryBook
2) Where can I buy Lithium Batteries https://kit.co/jehu/lithium-battery-cell-sources
4) Where Can I buy Solar Panels? Flexible - http://j35.us/136wFlexSolarPanl
Glass - http://j35.us/100w-100-solar
DIY - http://j35.us/DIY-Solar-cells
5) Where can I buy a Battery Management System? https://kit.co/jehu/battery-management-system
6) What parts do you use on your Samba? https://kit.co/jehu/the-electric-samba-project-components
7) Why not use Supercapacitors?
A. Batteries work better at this time, caps are rare and expensive devices that are very good at doing things not needed for storage systems typically.
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12 thoughts on “7s bms module 50a -1200w -trouble shooting tips”
  1. Avataaar/Circle Created with python_avatars Jim Jenkins says:

    Great video! I have your kit but haven’t built it yet.

    I know you are busy, but this sort of quick basic troubleshooting content is awesome.

  2. Avataaar/Circle Created with python_avatars Miles Lee says:

    I’m seeing these for sale on Geek and Wish. No copyright laws in China. Hate it for anyone that has a great idea and it gets stolen.

  3. Avataaar/Circle Created with python_avatars t says:

    Can u use for e bike battery

  4. Avataaar/Circle Created with python_avatars Joseph Krestan says:

    It took me a while to find your how-to videos. They are great; you do a great job of explaining everything. Thanks, Joe

  5. Avataaar/Circle Created with python_avatars Joel Dubus says:

    Hello
    i will wish help please
    I am a beginner in electronics and I would like to manufacture
    a 3S3P battery and with the BMS card I can not understand where to solder the 4.2v and 8.4v on the battery … I know this is a difficult question to explain here could you do an explanatory video?
    thank you so much

  6. Avataaar/Circle Created with python_avatars Joey Kido says:

    Will you offer shipping these Kits to Europe any time soon?

  7. Avataaar/Circle Created with python_avatars Mario Simoes says:

    Hi. I have your PowerTalk kit. When I connect all to the bms. There is to much heat that the fuse melts off. I tried half and it still seems to get 220 degrees. Any thoughts?

  8. Avataaar/Circle Created with python_avatars Jacob Longwell says:

    I had all my wire trace fuses blow out, if you have issues check them first. in the next iteration of the bord I would like to see the trace fuses replaced with SMD

  9. Avataaar/Circle Created with python_avatars Gacheru Mburu says:

    👍

  10. Avataaar/Circle Created with python_avatars Richard Harris says:

    Where can I find a Pin-out to build the cable for the BG-8S Meter to the ribbon cable?

  11. Avataaar/Circle Created with python_avatars Yaman's Universe says:

    Hi Jehu great video on BMS lovely content, I am interested in making my own BMS would love to send it to you for testing, the cell holders seen in the blue cell packs are great

  12. Avataaar/Circle Created with python_avatars Jesse W says:

    In Electronics, it is not ok or recommended to do a continuity multimeter test in a live(powered) circuit, let alone across a MOSFET or transistor. Continuity test should never be done on a powered circuit.

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