28000mAh Portable External Battery Charger for Lenovo ThinkPad X230 Tablet - High Capacity Multi-Voltage (5V 12V 16V 19V) Power Bank with US/EU/UK Plug 28000mAh of capacity, provides a full charge to most laptops or approximately 10 cycles to most smartphones. Reliable lithium polymer battery ensures quality. More than 500 recharges over its lifetime. Equipped with two outputs for greater versatility: 1 DC 12V / 4A, 16V / 3.5A or 19V / 3A port and 1 USB 5V / 2.1A port. Slim and stylish aluminum body ensures efficient heat dissipation, lighter weight, and durability. 4 smart LEDs keep you updated as to the remaining capacity. Package contents: 1 Olympia 28000mAh External Battery, 10 phone connectors, 10 laptop connectors, 1 USB cable, 1 DC power cable, 1 AC 100-240V power adapter, 1 user manual, 1 of each EU/UK/US adapter.