Specifications:

Compatible rechargeable battery: AA/AAA Ni-MH/Ni-Cd 

Slot: 4 slot

Power input: 5V 2.1A

Action mode: Charge, discharge, cycle refresh, battery internal resistance measurement

LCD display: Voltage, capacity, current, battery internal resistance, time

Charging current: 200mA / 500mA / 700mA / 1000mA / 1500mA

Discharge current: 100mA / 250mA / 350mA / 500mA / 650mA

Battery tolerance: Up to 3000mAh

Trickle charge:50mA

Body Size: 108 x 73 x 28mm

Body Weight: 106g

Included:
X4 Advanced Mini body (Black)
compatible USB power connection, Japanese manual