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13 thoughts on “Comparing 18650 holders – last day to group buy”
  1. Avataaar/Circle Created with python_avatars eN y says:

    Can those SMD battery holders be used to build an 18V battery? I have sony 18650vtc6 cells and I want to build a battery without soldering the cells. This is for an electric chainsaw. Thanks.

  2. Avataaar/Circle Created with python_avatars Tawensan says:

    Hi Jehu! I would try to reduce resistance conection btw cells and holder by using screws and some metallic round 'large' tabs which compress batteries a little bit … That means designing a new holder 😁

  3. Avataaar/Circle Created with python_avatars Bill Tsapalos says:

    @jehugarcia what hardware and software do you use for showing and measuring the temperature. I am talking about the little orange screen at the upper left corner (example 1.18)

  4. Avataaar/Circle Created with python_avatars Christopher Staton says:

    This phenomenon, of the cascade heating of series batteries, is due to a cumulative effect of the flow of electrons from each cell. The cell closest to the connectors will actually have a slightly higher current draw than the next, and so on , while the last will have the least, due to how electrons and current flow in a series configuration. You can see the same effect on the large battery banks using LSA batteries. Logic would normally say that the flows are the same on each cell, but on a quantum level, there is a slight difference, no matter what holder you use, you will see the same result of the first cell heating quicker than the rest, and the then the next, and so forth, until the last cell. Theoretically, they will all reach an equilibrium point but realistically, that point will occur after the batteries are drained past a safe limit. Hope this helps.

  5. Avataaar/Circle Created with python_avatars Brad Allen says:

    What FLIR camera do you use?

  6. Avataaar/Circle Created with python_avatars Heiko W. says:

    Hello Jehu,
    is it possible to make an s14p2 holder? (front/back)
    if so, can you please send me the gerber files?!
    thanks in advance

  7. Avataaar/Circle Created with python_avatars fred says:

    You can also include the hard wear the stand offs .let me know the cost please

  8. Avataaar/Circle Created with python_avatars fred says:

    I will be using the surface mount holders for the 26650 bats..

  9. Avataaar/Circle Created with python_avatars test channel 1834 says:

    I got 12 cells from revolt and will testing them tomorrow

  10. Avataaar/Circle Created with python_avatars test channel 1834 says:

    Can you do a test on a new board with two 4 cell holders and cut off one cell from one of the 4 cell holders to see if there maybe was a bad batch of 3 cell holders with lesser quality metal in the contacts

  11. Avataaar/Circle Created with python_avatars KD0LRG says:

    Hey, check out Mustie1 he is looking for help with a 72 volt moped. Might make a good calibration video.

  12. Avataaar/Circle Created with python_avatars fred says:

    I need about 30 of them for my diy. prohect.

  13. Avataaar/Circle Created with python_avatars fred says:

    ,
    I would like some one to build the boards for me. I already design the board copying your board but only smaller. It's a 3s board for the 26650 battery.

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