Specifications:

General    
Brand: Xiaomi
Model: Mi power bank 2
Available color: Black, Silver
Battery type: Lithium polymer battery
Battery capacity: 10000mAh 3.85V (38.5Wh)
Input interface: Micro USB
Output interface: USB-A
Input power: 5.0V---2.0A, 9V / 12V--18W
Output power: 5.1V---2.4A, 9V / 12V---15W MAX
Charging Time    About 4.2 hours (18W charger, stanard charging cable)
About 6.2 hours (10W charger, stanard charging cable)
* 18W charger means which support output DC 5.0V / 2.0A 9.0V / 2.0A 12V / 1.5A
* 10W charger means which support output DC 5.0V / 2.0A
Dimensions    Product size: 130 x 71 x 14.1mm
Product weight: 217g
Package Contents : 1 x Xiaomi Mi2 Power Bank, 1 x Micro USB Cable, 1 x User Manual

Features:

• Supports two-way fast charge (maximum input 18W, maximum output 15W).
• ATL high-density lithium polymer battery, 10000mAh capacity.
• Only 14.1mm thin, is 1/3 thinner from the first generation. Aluminium alloy housing, round edge design.
• LED indicator lights show you the power status.