... battery, NI-MH battery, Ni Cd battery, power, adapter, power bank. 2. charging and discharging functons About RFNT4 ... (V), current (A), capacity (mAh), resistance (Ω) ,power output(W) information. It can charge, dis-charge and reacted the batteries ... , adapter2. Supply for charging, discharging, battery testing, power/adapter testing, internal resistance testing, and voltage testing, capacity testing.3 ...