This cell performs identically to the incredible Samsung 30T, including temperature, but is in a different steel can. I was told it is a Samsung 30T by Ampking but I am unable to explain the use of a different can.
The Samsung 30T and its rewraps, like this Ampking, are the highest performing and hardest hitting cells available to us as of May, 2018.
This Ampking’s “40A-50A” current rating is exaggerated and undefined but the 3000mAh capacity rating is accurate.
I am estimating this Ampking’s ratings at 35A and 3000mAh, same as the Samsung 30T.
Two cells were donated for the purposes of testing by Ampking (http://www.ampking.com). Thank you!
Ratings graphic: https://imgur.com/a/vxrHPGi
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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 the tables can change at any time as different grade cells appear on the market or we get swamped with fakes. Please, never assume that the ratings in the table 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/