universal external laptop battery charger
1.Capacity:20000mAh
2.Output:5V/2.1A, 4A(12V/16V/19V)
3.CE&ROHS
4.External battery

Specification:

·Capacity: 3.7V, 20000mAh
·Input voltage: 19V   1.2A
·Output voltage: 5V/12V/16V/19V(optional)
·Output current: 2A(5V), 4A(12V/16V/19V)
·Compatible with Laptop/Mobile Phones/Tablet PC/GPS/PSP/MP3......
·Accessories:
  Adaptor     1pcs
  Output Cable   2pcs
  Cellphone connectors: 7pcs
  Laptop connectors: 8pcs
·Size: 194(L)*120(W)*15(H) mm
·Weight: 510g
·Color: Black,Silvery,Red,Blue