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" 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 Docan is incredibly overrated. At 30A continuous, 5A below this cell's rating, it became hot enough to boil water.
This Docan's appearance is identical to the Samsung 30Q. It's discharge curve is the same as the 30Q's but this cell performs a tiny bit worse.
Continuous-Current Test Results
Pulse-Current Test Results
No pulse tests were done as this is a rewrapped 30Q
Always Remember
- There is no 18650 that can have a factory/manufacturer rating over 30A.
- There is no 3000mAh 18650 that can have a rating over 20A.
- There is no 3100mAh-3600mAh 18650 that can have a rating over 10A.
- There is no 18650 with a capacity rating over 3600mAh.
Comments
At 10A continuous this cell delivered a bit more than 2700mAh. This is below the average for a 3000mAh cell but just within limits so I am rating it at 3000mAh.
At only 30A continuous, 5A below the cell's rating, it delivered less than 500mAh down to 3.2V and reached over 100°C. This is an astoundingly high temperature. This is clearly not a 35A cell.
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
https://www.e-cigarette-forum.com/f...afety-grades-and-pulse-performance-data.7566/
https://www.e-cigarette-forum.com/f...des-picking-a-safe-battery-to-vape-with.7447/
https://www.e-cigarette-forum.com/f...fety-grades-and-pulse-performance-data.7554//
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" 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 Docan is incredibly overrated. At 30A continuous, 5A below this cell's rating, it became hot enough to boil water.
This Docan's appearance is identical to the Samsung 30Q. It's discharge curve is the same as the 30Q's but this cell performs a tiny bit worse.
Continuous-Current Test Results
Pulse-Current Test Results
No pulse tests were done as this is a rewrapped 30Q
Always Remember
- There is no 18650 that can have a factory/manufacturer rating over 30A.
- There is no 3000mAh 18650 that can have a rating over 20A.
- There is no 3100mAh-3600mAh 18650 that can have a rating over 10A.
- There is no 18650 with a capacity rating over 3600mAh.
Comments
At 10A continuous this cell delivered a bit more than 2700mAh. This is below the average for a 3000mAh cell but just within limits so I am rating it at 3000mAh.
At only 30A continuous, 5A below the cell's rating, it delivered less than 500mAh down to 3.2V and reached over 100°C. This is an astoundingly high temperature. This is clearly not a 35A cell.
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
https://www.e-cigarette-forum.com/f...afety-grades-and-pulse-performance-data.7566/
https://www.e-cigarette-forum.com/f...des-picking-a-safe-battery-to-vape-with.7447/
https://www.e-cigarette-forum.com/f...fety-grades-and-pulse-performance-data.7554//
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