These cells were donated for the purposes of testing by Shockli. Thank you! To prevent any confusion with the eGo-type "batteries", I use the term "cell" here to refer to a single 18350, 18650, 26650, etc.
While the test results are hard data, the conclusions and recommendations I make based on these tests are only my personal opinion based on my criteria for setting a rating. Carefully research any cell 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.
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 is an overrated cell that I am rating at 15A/3000mAh. While the wrap does list both the continuous and pulse ratings, normally a very good thing, its claimed 35A continuous rating is wildly exaggerated. At 25A continuous, 10A below its claimed rating, it got almost hot enough to boil water, 97°C. It looks and performs almost identically to the Samsung 30Q.
Continuous-Current Test Results
Pulsed-Current Test Results
Comments
List of Battery Tests | E-Cigarette Forum
18350/18500 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
While the test results are hard data, the conclusions and recommendations I make based on these tests are only my personal opinion based on my criteria for setting a rating. Carefully research any cell 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.
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 is an overrated cell that I am rating at 15A/3000mAh. While the wrap does list both the continuous and pulse ratings, normally a very good thing, its claimed 35A continuous rating is wildly exaggerated. At 25A continuous, 10A below its claimed rating, it got almost hot enough to boil water, 97°C. It looks and performs almost identically to the Samsung 30Q.
Continuous-Current Test Results
Pulsed-Current Test Results
Comments
- At 10A continuous it reached almost 2800mAh. This is average performance for 3000mAh cell at 10A so I am rating this cell at 3000mAh.
- At 15A continuous the temperature rose to 67°C. This is way below the average temperature of a cell running at its continuous discharge rating (CDR).
- 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.
List of Battery Tests | E-Cigarette Forum
18350/18500 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
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