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✅ Advanced protection system – Includes overcharge
Communication function
please first in the waste material to practice
Temperature protection
you can free up two hands to pinpoint the position
FNIRSI HRM-10 Premium Battery Tester Kit with Clamp 21700 Module ✅ Advanced protection system –Upgrade your testing setup with the FNIRSI HRM 10 Premium Kit a professional grade internal resistance and voltage tester built for serious DIYers, repair techs, and battery resellers. This premium version includes everything you need to test Li ion, LiFePO4, and lead acid batteries with precision, including a custom clamp holder for 18650, 21700, and 26650 cells, alligator clip leads, and a rugged carrying case. Key Features: Milliohm Level Accuracy: