PCB - https://j35.us/jehusPCB-v2
4cell Holder - https://j35.us/4cell-Holder-Ali
3cell Holder - https://j35.us/3cell-Holder-Ali
8pin connector - https://j35.us/8pin-header-100x-Ali
4A Fuses - https://j35.us/100SMDfuses-Ali
3600mAh Cells - https://j35.us/LGM36-18650
FAQ:
1) Where can learn more about batteries? http://j35.us/DIYlithiumBatteryBook
2) Where can I buy Lithium Batteries https://j35.us/Lithium-July
3) How can I Consult 1on1 with you? https://j35.us/PhanTime
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.com/jehu/battery-management-system
6) What parts do you use on your Samba? https://j35.us/eSambaProj
7) What is the best fuse wire? I only use 1/8w resistor legs http://j35.us/ResistorLegs
8) 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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14 thoughts on “Monday night powerwall talk. live”
  1. Avataaar/Circle Created with python_avatars Throttle Nerd says:

    Hi Jehu thanks for all the wonderful info! A question regarding processing 18650 from dead laptop batteries: 1st phase — I charge them then store them. Depending on a charger, some are charged to 4.2, some to 4.22-4.23. Which voltage drop (after, let's say, 2 weeks) is good? I don't have any experience in this but I guess only a few of that 100+ cells will maintain "close to 4.2" voltage. So should I process only the ones that are higher than 4.15, for instance? And if the cell drops to 4.17-4.18 on the same day as charged — it's not for the "serious" project, right?

  2. Avataaar/Circle Created with python_avatars John Frost says:

    Sold out batteries again?

  3. Avataaar/Circle Created with python_avatars Chris Campbell says:

    Hello Jehu, You mentioned here some fiat battery for being the best value for money, Can you please tell me which battery this is as a google search gave pretty useless results…..

    Also please can you tell me are 18650 Li-Ion cells supposed to be charged to 4.1v or 4.2v……????
    My SkyRC Imax B6 suggests Lithium Ion cells are only 4.1v when full but Lithium Polymer cells get charged all the way up to 4.2v..

    Lastly best method for connecting 18650 cells….. Spot welder or fuse wire/resistor+ bus bar??

    Sorry for all the questions, Im starting to gather cells for my home powerwall setup so wanna do it all right the first time round..

  4. Avataaar/Circle Created with python_avatars Bill Karoly says:

    Your volume was low

  5. Avataaar/Circle Created with python_avatars jeff bayer says:

    are your brake adjusters adjusted properly if the shoes are too far away from the drums your pedal will go all the way to the floor

  6. Avataaar/Circle Created with python_avatars lizardzman says:

    Hey Jehu, there is a youtube channel for you. Jbugs disc brake bleed.

  7. Avataaar/Circle Created with python_avatars lizardzman says:

    Yes Jehu, if you haven't already done so, look up adjustable proportioning valve. Napa auto parts probably has them.

  8. Avataaar/Circle Created with python_avatars Aaron says:

    vacuum

  9. Avataaar/Circle Created with python_avatars Andrew McClure says:

    Have you ever done anything with a solar generator? for you personally? something you take with you

  10. Avataaar/Circle Created with python_avatars RANDOG1951 says:

    FYI Jehu, YOUTUBE channel Strange Parts. Video published June 12th, 2018. Maybe another contact for you in China concerning PCB's. Continued success.

  11. Avataaar/Circle Created with python_avatars Kerrio Bartlette says:

    What are these Fiat Batteries you keep mentioning and where can i get some, thanks

  12. Avataaar/Circle Created with python_avatars Jeff Nading says:

    Your 24 volt switching converter, you can remove the metal box the old batteries were mounted in to make room to install your new battery boards.

  13. Avataaar/Circle Created with python_avatars Jeff Nading says:

    What do you use for spot welding your batteries? I built a fully controllable electronic dual capacitor discharge spot welder. There's a guy Fritz Geyser their in California that designed it and sells the boards to build the machine. I built it to repair aircraft SS thrust reverser blankets. It will do batteries no problem. Just look for his name on YouTube. I'm on YouTube as well under my name.

  14. Avataaar/Circle Created with python_avatars Jeff Nading says:

    What HP motor did you use?

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