Mooch - Nitecore 40A 2600mAh 18650 Bench Test Results...ridiculous 40A rating, only a 20A battery Bottom Line: This Nitecore is a 20A rewrapped cell with a useless and possibly dangerous "pulse" rating (
Nitecore Batteries: High Performance, Capacity And Quality
Nitecore HC68 Focusable Headlamp, 2000 Lumen USB-C Rechargeable with Battery, White and Red Light and LumenTac Organizer - - Amazon.com
Nitecore NL1829 LTHP Low Temperature 18650 Battery: Test - YouTube