1. test polymer li-ion battery, NI-MH battery, Ni Cd battery, power, adapter, power bank. 2. charging and discharging functons ... batteries , like electric tools 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. It can charge, dis ...