The Vapcell K25 performs essentially the same as the Samsung 25R, an average performing 20A 2500mAh cell. These appear to be China-manufactured cells and the 20A rating seems reasonable.
The 35A “max“ rating on the wrap cannot be used to compare these cells to any others. While Vapcell says they have done some testing the max rating was also set based on marketing needs.
The capacity of the two cells I tested was 2517mAh and 2545mAh. This is decent consistency for China-manufactured cells and I am rating the K25 at 2500mAh.
Two cells were sent for the purposes of testing by Vapcell (www.vapcelltech.com). Thank you!
Ratings graphic: https://imgur.com/a/nEbnD7a
Full Test report: https://www.e-cigarette-forum.com/threads/bench-test-results-vapcell-k25-–-20a-2500mah-18650-equals-samsung-25r-ignore-max-rating.940899/
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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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