Amazon.com: 21700 18650 Battery Charger with Capacity Test Function,21700 Battery Charger 21750 18650 Charger with Capacity Test for 20700 22700 26650 26700 16340 (RCR123) Ni-MH Rechargeable : Tools & Home Improvement
Mooch - iJoy 40A 4200mAh 26650 Bench Test Results...overrated but a great 30A battery! Bottom Line: This iJoy cell's 40A rating is exaggerated. This is incredibly frustrating because it's the first 30A
Battery test-review 26650 individual tests
We test EVERY 26650 LIFEPO cell on #aliexpress - YouTube