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Imren Orange 30A 2100mAh 18650 Bench Test Results...only a 20A+ battery

Discussion in 'Batteries and Chargers' started by Mooch, Sep 10, 2015.

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  1. Mooch

    Mooch Electron Wrangler Verified Member ECF Veteran

    Supporting member
    May 13, 2015
    Tested at 10A-30A constant current. This cell was purchased from IMRBatteries by me and only used for testing. To prevent any confusion with the eGo-type "batteries", I use the term "cell" here to refer to a single 18650, 26650, etc.

    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 elected 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.

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    Bottom Line
    In my opinion, this is a 20A+ continuous discharge current (CDR) cell with below average capacity for its rating.

    Test Results

    • At 10A it reached about 1800mAh. This is below average performance for a 2100mAh-rated cell.
    • At 15A the maximum temperature reached 64°C. This is too low for a cell operating at its CDR.
    • At 20A the maximum temperature reached 74°C. This is at the low end of temperatures for 20A to be the CDR but it's the same as the 25R.
    • At 25A the temperature rose to 83°C. This is at the high end of temperatures for a cell at its CDR but it's the same as the HG2 and 30Q.
    • At 30A the cell reached 95°C. This is much too hot to set the CDR at 30A.
    • Five additional cycles at 30A started showing some voltage sag, indicating that damage was being done at 30A.
    • The temperatures at 20A and 25A are at the low and high limits for a cell operating at its CDR. I am setting a CDR of 20A+ for this cell.
    • To see how other cells have tested and how hard you can safely push them, check out the links in my signature.
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