This appears to be a rewrap of the great performing YDL 18350D cell used by other companies, probably the best 18350 available now. The 9A rating seems to be accurate but, like the other cells using the YDL 18350D, this cell has a slightly exaggerated capacity rating.
The Yong De Li New Energy Company (YDL) gives their 18350D a 15A “max discharge current” rating. Notice that this is not a continuous current rating. It seems to be for non-continuous use as the 18350D gets much too hot at 15A for that to be a continuous rating.
The capacity of the four cells I tested was 1073mAh, 1091mAh, 1118mAh, and 1131mAh. While this is decent consistency for cells from the smaller manufacturers like YDL, two of cells failed to meet their 1100mAh rating. The cells I have cannot be the lowest capacity cells in the batch either. I am rating the Epoch at 1000mAh and this is typical for the YDL 18350D cell.
Four cells were donated for the purposes of testing by 18650BatteryStore (http://www.18650batterystore.com). Thank you!
Ratings graphic: https://imgur.com/a/d6YJlg3
Full Test report: https://bit.ly/2Ny8n59
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These tests only note the ESTIMATED ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.
Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of personal injury or property damage. They are not meant to be used outside of a protected battery pack and you use them AT YOUR OWN RISK. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.
To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/
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