A 18350 with very high capacity and super high current? Maybe not
The battery is a good battery, but the specifications are 1000mAh and 10A
Conclusion
It is not surprise that the battery do not match specifications, that is seen before from Bestfire.
The battery is a good battery, but with considerable less capacity and current delivery than specified.
This is the kind of battery that needs your testing to find out that it falls short of the best batteries of its price class, common customer reviews will not reveal that because it is a pretty good battery.
Yeah, djozz is right. It’s good enough, and most people won’t ever use it above its real capability to find it failing on them. Thanks for the testing!
By the way, given the highly fakeful brand name cell sales in AliExpress, maybe we should get a few reviews of that class. If so, Henrik please specifically request to be served fakes as everyone else, it must not be the case the seller identifies you as a reviewer and then proceeds to send you genuine stuff. LoL! :-D
Anyway, due to a recent dispute I had I ended up with these cells I have no idea where they come from (got ½ my €urobucks back):
Here is the test I made with the known good 25Rs:
It seems there's some cell differences, i.e. they're not as consistent as premium brand ones.
With the help of a friend, multimeter and precision power supply we made some measurements and sort of estimated their internal resistance: 33, 34.4, 36.6 and 37.6mΩ, for an average of 35.4mΩ.