1. test polymer li-ion battery, NI-MH battery, Ni Cd battery, power, adapter, power bank. 2. charging and discharging functons About ... batteries, laptop batteries, mobile power bank batteries, DV batteries ,Camera batteries ,AAA batteries ,and so on. It can test the voltage ... (V), current (A), capacity (mAh), resistance (Ω) ,power output(W) information. ...