While this cell has a useless large 40A “max” current rating on the wrap it has accurate continuous current and capacity ratings. In fact, the current rating is conservative compared to other wrappers of similar China-manufactured cells. This is great to see! It helps to improve safety, performance, and cell life.
I am thrilled that the continuous discharge rating (CDR) is mentioned on the wrap but I hate seeing the use of a “max” current rating, particularly when it’s printed a lot larger than the CDR. I hope Imren removes the max rating soon.
The two cells I tested delivered 3785mAh and 3919mAh at 0.5A down to 2.5V.
These cells performed well, essentially equal to the Golisi S35 and Efest purple 35A 3700mAh 21700’s.
I am estimating this Imren’s ratings at 25A and 3750mAh.
Two cells were donated for the purposes of testing by Liion Wholesale (http://www.liionwholesale.com). Thank you!
Ratings graphic: https://imgur.com/a/bDcO5KL
Test report: https://bit.ly/2KSEXvA
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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, LG, Panasonic, 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. 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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