These cells were purchased for the purposes of testing by me. 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 statements, 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 cells 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.
A note regarding current ratings and my testing
If the cell has only one current rating number on it, or if it says "max discharging current" then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.
Bottom Line
This Conflict cell is a rewrap with a ridiculously exaggerated current rating. The capacity rating is exaggerated too. It is identical in appearance and almost identical in performance to the LG MH1 10A 3200mAh cell. At only a 15A continuous discharge it's almost hot enough to boil water. A 40A continuous discharge wasn't even possible as the voltage collapses at just 30A. At 40A pulsed the voltage of a freshly charged cell dropped to my 2.8V cutoff in just 2 seconds.
Continuous-Current Test Results (with comparison to LG MH1)
Pulsed-Current Test Results
Comments
To see how other cells have tested and how hard you can safely push them, check out these links:
List of Battery Tests | E-Cigarette Forum
18350 Safety Grades and Pulse Performance Data | E-Cigarette Forum
18650 Battery Ratings -- Picking a Safe Battery to Vape With | E-Cigarette Forum
26650 Safety Grades and Pulse Performance Data | E-Cigarette Forum
Disclaimer
The statements, 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 cells 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.
A note regarding current ratings and my testing
If the cell has only one current rating number on it, or if it says "max discharging current" then I have to assume that the company is stating that the cell can be discharged at that current level in any way, including continuously.
Bottom Line
This Conflict cell is a rewrap with a ridiculously exaggerated current rating. The capacity rating is exaggerated too. It is identical in appearance and almost identical in performance to the LG MH1 10A 3200mAh cell. At only a 15A continuous discharge it's almost hot enough to boil water. A 40A continuous discharge wasn't even possible as the voltage collapses at just 30A. At 40A pulsed the voltage of a freshly charged cell dropped to my 2.8V cutoff in just 2 seconds.
Continuous-Current Test Results (with comparison to LG MH1)
Pulsed-Current Test Results
Comments
- At 10A continuous it reached 73°C and about 2950mAh. This is average for these high internal resistance, high capacity 3200mAh cells at 10A so I am rating this cell at 3200mAh.
- At 15A continuous the temperature rose to 96°C, almost to my safety limit of 100°C. This is way, way above the average temperature for a cell operating at its CDR, indicating that we are operating at significantly above the cell's actual rating. The voltage is low and sagging a lot.
- At 20A continuous the voltage sag was huge and the temperature rose to 86°C even though the discharge was very short.
- At 30A the voltage plunged almost instantly quickly to a useless level.
- I didn't even try to do a 40A discharge as it would have only lasted a fraction of a second before the low cutoff voltage was reached.
- I am setting a CDR of 10A for this cell. Its temperature is the same as the LG MH1 operating at its CDR and its appearance and performance are also the same as the MH1. While operating any cell near its rated maximum current level causes damage to the cell, I would expect decent cycle life from this cell at 10A continuous.
- I have included pulsed discharges but I haven't set pass/fail standards for pulse testing yet. The discharges were done at 5sec on/30sec off, down to 2.5V. One chart shows the entire discharge at each level. The other chart is zoomed in to show the first 5 minutes to make it easier to see the voltage sag at different current levels.
To see how other cells have tested and how hard you can safely push them, check out these links:
List of Battery Tests | E-Cigarette Forum
18350 Safety Grades and Pulse Performance Data | E-Cigarette Forum
18650 Battery Ratings -- Picking a Safe Battery to Vape With | E-Cigarette Forum
26650 Safety Grades and Pulse Performance Data | E-Cigarette Forum
Wow! And thank you.
