Opus BT-C3100 Charger 1.5V 3.7V 3.6V AA AAA Ni-MH Battery Charger Tester V2.2
Compatible with: AA (LR6) and AAA (LR3) Ni-Cd, Ni-MH 1.2V. Model: BT-C3100 V2.2 / 2022. Auto Circuit Detection: YES. Built-in Protected Circuit: YES. New fan cover make better protection for cooling fan.