Portable power pack dual usb charger battery capacity 8 800 mah interfaces microusb usb interace output 2x usb type a power output max 2 dimensions 109 x 75 x 24 mm weight 230 g features onoff switch lcd display led flashlight colour grey rechargeable battery technology li ion output voltage 5 v operating voltage 5 v charging cycle ca 500 charging function charges 2 devices simultaneously output i 2 0 a output ii 1 a applications smartphone