Specifications:  
Cell type: Li-polymer battery  
Capacity:6,600mAh  
Input: 5.0V 1A  
Port 1 output: 5.0V DC, 1A  
Port 2 output: 5.0V DC, 2.1A  
Size: 112.5 x 73 x 16.4 mm  
Weight: 170g  
Charge state: 4 LED display 

Using your power station:  
You can use the included USB-mini USB cable to charge the Power Station from USB charger or PCs USB port  
Note: while Power Station is being charged, blue LED will flash to light up  
Once power station is fully charged, all LEDs will light up and stop charging  
Connect power station to iPad, cell phone or digital devices using the USB cable, press the on/off button, it will be charging  

Battery capacity indicator and LED light switch button  
LEDs indicates the power station charging status and battery power level  
Press on the button to check power level  
One    LED light shine power: 0  to 25% 
Two   LED light shine power: 25 to 50%
Three LED light shine power: 50 to 75%  
Four   LED light shine power: 75 to 100%