Ledoman has also published a test of these batteries.
HKJ published a test of the Keeppower IMR18650 3200 mAh battery. I've mentioned it because there was speculation that battery had the same cell inside as the Basen battery in this test. While I don't believe these use the same cells, I don't believe the data is conclusive either. If the battery in this test has IMR chemistry, then Basen rated it very conservatively. I'll try running higher current discharge tests that exceed Basen's specifications when I finish testing the rest of their batteries.