In my opinion this is a rewrap of the Samsung 30Q, appearing and performing identically to the Samsung.
This Cylaid’s 25A continuous rating is exaggerated as Samsung rates the 30Q at 15A continuous. Operating at 20A is mentioned in the datasheet but you must not exceed its 75°C maximum temperature rating.
This Cylaid’s 40A “pulse” rating is useless as we don’t know the width of the pulses, the time between them, and the criteria used to set the rating.
I am estimating this cell’s ratings to be the same as Samsung’s ratings for the 30Q; 15A continuous, 20A if not allowed to reach 75°C, and 3000mAh.
Two cells were purchased for the purposes of testing by me.
Ratings graphic: https://imgur.com/a/O2O4kmi
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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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