Bottom Line: This is an accurately rated 20700 cell (20mm diameter x 70mm length) that performs well but not quite as well as the Sanyo NCR20700A.
This Ampking uses a paper top ring insulator that should not be exposed to juice or otherwise it could swell and soften, possibly increasing the risk of the insulator being damaged when put into or removed from a device or charger.
I am rating this Ampking at 30A and 3000mAh.
My thanks to Ampking for donating the two cells for testing (www.ampking.com)!
I don’t know when it will be available, or from which vendors, but I will post updates as I find out.
Test results, discharge graph, photos: https://www.e-cigarette-forum.com/forum/threads/ampking-30a-3000mah-20700-bench-test-results-accurately-rated-a-good-20700-battery.799535/
All my test results to date: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/
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