Basen Black 30A 2600mAh 18650 Bench Test Results...only a 20A battery

Discussion in 'Batteries and Chargers' started by Mooch, Aug 9, 2015.

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  1. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    Tested at 10A-25A constant current. This cell was graciously donated for testing by our own @nkr501. To prevent any confusion with the eGo-type "batteries", I use the term "cell" here to refer to a single 18650, 26650, etc.


    Disclaimer
    The conclusions and recommendations I make based on these tests are only my personal opinion. Carefully research any battery you are considering using before purchasing.

    Testing batteries at their limits is dangerous and should never, ever, be attempted by anyone who has not thoroughly studied the dangers involved and how to minimize them. My safety precautions are the ones I have selected to take and you should not assume they will protect you if you attempt to do any testing. Do the research and create your own testing methods and safety precautions.

    image.jpg image.jpg image.jpg image.jpg image.jpg


    Bottom Line
    This is a decent 20A continuous discharge current (CDR) cell. At 25A it gets very hot. This is not a 30A cell and, in my opinion, you should not run this cell above 20A.


    Test Results
    image.jpg


    Comments
    • At 10A the discharge almost reached 2450mAh, decent performance for a 2600mAh-rated cell.
    • At 20A the cell had a higher-than-average maximum temperature of 82°C, about the same as the Samsung 30Q and LG HG2.
    • The cell was an average performer at 20A, not lasting quite as long as a Samsung 25R and with lower voltages under load.
    • At 25A the cell reached a max temperature of 94°C. This is a way too high a temperature for a cell to operate at and is close to my safety limit of 100°C.
    • A discharge was not done at 30A due to the very high temperature seen during the 25A test.
    • An additional five cycles at 20A showed no signs of damage other than that expected from running a cell at its CDR for several cycles.
    • I am setting a CDR of 20A for this cell. I think you will get decent cycle life due to the minimal damage shown at that current level. But, in my opinion, you should not run this cell at above 20A.
    • To see how other batteries have tested and how hard you can safely push any of the batteries I have tested, check out the links in my signature.
     
    nkr501, Froth, opticruby and 2 others like this.
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