This is a 21700 cell. It’s continuous 30A rating is ridiculous as it gets hot enough to boil water when discharged at that level. It is just a 20A cell that performs worse than the iJoy 21700 at moderate to higher power levels.
This Basen uses a new cell that has come to market recently. I don’t know who makes it but it’s being rewrapped by at least three different companies so far. I will be posting the results of their testing soon.
It’s capacity falls a bit short of 4000mAh in my testing. Since I’m sure I don’t have the worst performing two examples of this cell out there I have to assume that others will test even a bit lower.
I am rating this cell at 20A and 3900mAh. I recommend staying below about 40W though to prevent excessive voltage sag and reduced vaping time.
This cell has a plastic top insulating ring so juice spills will not damage the ring.
Two cells were purchased by me for the purposes of testing.
Cell photos: https://imgur.com/a/ntCiX
Ratings graphic: https://imgur.com/a/pGnaI
Test results, discharge graph, photos: https://www.e-cigarette-forum.com/forum/threads/bench-test-results-basen-30a-4000mah-21700…ridiculously-overrated-just-an-average-20a-battery.836909/
All my test results to date: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/
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