Tested at 10A-30A constant current. This cell was purchased from IMRBatteries by me and used only 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.
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 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.
Bottom Line
In my opinion, this is a 20A continuous discharge current (CDR) cell with average capacity for its rating.
Test Results
Comments
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 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.
Bottom Line
In my opinion, this is a 20A continuous discharge current (CDR) cell with average capacity for its rating.
Test Results
Comments
- At 10A it reached about 1900mAh. This is average performance for a 2100mAh-rated cell.
- At 15A the maximum temperature reached 65°C. This is too low for a cell operating at its CDR.
- At 20A the maximum temperature reached 76°C. This is just below the 78°C average temperature for a cell operating at its CDR.
- At 25A the temperature rose to 85°C. This is too high for a cell at its CDR.
- At 30A the cell reached 94-97°C. This is much too hot to set the CDR at 30A.
- Five additional cycles at 30A started showing some voltage sag but it's not really indicative of damage being done. The temperature was way too high to set a CDR of 30A. This is clearly not a 30A cell.
- The temperature at 20A is very close to the average 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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