diy solar

diy solar

Recent content by ramiws

  1. R

    EVE LF280K 16S JK B2A24S15P-CAN

    Ok thanks, so do you recommend those 280K grade A fron Nkon? or should I look into another manufacturer? I keep reading that the 280K is having issues even if grade A
  2. R

    EVE LF280K 16S JK B2A24S15P-CAN

    Forget what the QR code says, can you get the EVE testing report for that same cell that tested 266.3AH? You can ask NKON for it, look attached for example.
  3. R

    Some busbars are hotter than others

    But those size are like terminals that I got first order (see previous pages) , now I am saying that they are even smaller. Could you take a look and confirm? The video is using the older ones. So we have now 2 types, small ( no big problem) and tiny (which I am talking about now). I took...
  4. R

    Some busbars are hotter than others

    What is the terminal size on your cells? these are new terminals in the market, how can you tell it is fine by the look of it? 100A needs 35mm2 surface area to conduct good without heat energy waste.
  5. R

    Some busbars are hotter than others

    You know aluminium is good heat conductor and you can see in the datasheet that heat of 40 degrees cut the life cycles by half. Also the busbar is slotted, look at the contact area for 100A in the attached picture black area.
  6. R

    Some busbars are hotter than others

    The first 40 cells arrived. 36 cells of them have even smaller terminals :( running it just on 100A gets the cell pretty hot. And heat damages the cell cycle life over time by half.
  7. R

    Shenzhen Tianshilihe Technology Co., Ltd. Great Experience

    Where did you get this info? Was it the seller? no problem just let us know the source. Because this seller was spotted lying and not honest
  8. R

    Shenzhen Tianshilihe Technology Co., Ltd. Great Experience

    Can you read the bar code with the letter B destroying the bar code?
  9. R

    Is the EVE Energy Co. Ltd store in Alibaba legit?

    I got email that they have warehouse in EU now, anyone made orders?
  10. R

    What has happened to Luyuan/Amy Wan

    Any updates? would you share the Ah and price per cell before shipping?
  11. R

    Calculating power loss via YR1030+

    Thanks, couple of questions: 1- To do the 3 min quality test of a cell, should I start the test from a fully charged state ( of course will wait for cell rest voltage)? 2- To measure power loss due to poor connection, I should measure from terminal base to next cell terminal (not caring about...
  12. R

    Calculating power loss via YR1030+

    Hi, I got YR1030+. I put 2 EVE 280ah cells in series and measured the resistance. it came 0.6 mOhm it is made of (0.2 cell1+ 0.2 cell2) which means the busbar connection is the rest (0.2) = 0.6 I want to calculate the power loss for 100A: V(drop) = 0.0006 (R) * 100 (I) = 0.06volt Power...
  13. R

    Can I trust Ali* with these battery cables

    Hi, I am pulling max 99A from the 24v 280Ah battery over 40-50cm . These cables says they can do that at 16mm2. Can I trust that? I tried different online calculators with different results. https://www.aliexpress.com/item/1005004218007062.html
  14. R

    Some busbars are hotter than others

    If you look at the picture, how does it look like that they solder the stud? With laser or what?
  15. R

    Some busbars are hotter than others

    So does this mean that I can measure the reisitance with multimeter from one terminal to another and it should be equal to 0.05+0.07+0.05 ?
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