Rosewill Plasma Black 18000mAh Universal AC Outlet Portable Power Bank for Laptop/Smartphone/iOS/Android/PSP (PB-U1-18000-BK) Capacity: 18000 mAh Compatibility: Compatible with most Laptops, and USB charging devices, including iPhone, iPod, iPad, Smartphones, digital camera, PSP and NDS Output: DC 5V/2.4A (Dual Ports, MAX. 2.4A) AC Output: AC 120V 60Hz Up to 65/85W power supply from AC receptacle, enable to full up laptop battery