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diy solar

Recent content by PeteW

  1. PeteW

    Top Balancing (16), 280AH LiFePO4 cells. Please check my Plan.

    Hey there Will, I'm also very new at all of this, but you are asking all of the right questions and your instincts off separating cells are correct. Hopefully you are also using the wiki and resource library, where there are many fine articles, to get some "good lern'n" ;) . I've been...
  2. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Hi John, I owe you an apology. As you may remember, the wife and I went on a trip to mountains two weeks ago to celebrate our anniversary. I intended to get up with you as soon as we returned, but some materials to build a couple of dressers (I'd promised my wife) arrived while I was gone and...
  3. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Check. We're relaxing in the cabin we rented. I'll try and do some reading on the Capacity Tester over the next few days. We head back home on Thursday.
  4. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Thanks for all of this. Sorry it's taken so long to reply. Really busy the past couple of days. Our 36 wedding anniversary is on the 18th. We leave tomorrow for a trip to a cabin in the Blue Ridge mountains. We'll be back home in Thursday. I have everything I need to make the leads, 10awg...
  5. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Very possible. They have barcode stickers on the positive sides. They each have a unique serial number. The serial numbers were not used on the supposed Inspection Report that was sent with the cells. Just numbers 1 through 16 which were not on the cells. For that reason I didn't find the sheet...
  6. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Yeah, I tried reaching out to them twice to ask if there were torque specs for tightening nuts on the studs. Could be it doesn't translate well, but I did not receive a reply either time. The cells are basically pristine based on many I've seen in videos. No swelling and no dents. The sheet...
  7. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    This part I understand. Thank you for showing me the math and how it's used to figure this type of thing out.
  8. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Michael Caro helped me get these cells. This was the beginning of summer in 2021. He recommended a couple companies. Keheng was one of them. At the time he felt they were offering the best cells and service. Although they did cost more than the other company, whose name escapes me. I went with...
  9. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    280Ah Keheng cells. Thanks for pointing this out, I've added it to my opening statement.
  10. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Thank you, your expansion was very helpful. Where might I learn more about how you arrived at the percentages used above? Not quite sure why the BMS will allow 480 service amps, but we only want to use 285 amps ( And I guess we're talking about 285A at 12V). Also, trying to understand the...
  11. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Okay, I understand. At this point I haven't done that. And will make sure not to. I've had the cells for a year and felt I should at least do something to boost them a bit. As I mentioned I'm rebuilding an Airstream and I'm the first to admit I might have a few to many irons in the fire.;)
  12. PeteW

    Testing - Top Balancing Experiment - 4 cells at a time

    Thanks, I never went past that nor did I completely top balance the cells. This was more of a practice exercise. I've been informed that it's not good for them to try and keep them continually top balanced, thankfully I haven't, and I was encouraged to get my BMSs before doing more. Working...
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