universal external laptop battery charger
1.Capacity:21600mAh
2.Output: 5V/7.4V/9V/14.5V/16V/19V
3.CE&ROHS
4. universal external laptop battery charger 

Specification:

·Capacity:  3.7V, 21600mAh
·Input voltage: 13-19V   1.0-4.2A
                           (compatible with different laptop adapters)
·Output voltage: USB Port  5V  1Ah
                              DC Port: 5V/7.4V/9V/14.5V/16V/19V   4.2Ah Max
·Output current: 1.0-4.5Ah
·Compatible with Laptop/Mobile Phones/Tablet PC/GPS/PSP/MP3......
·Accessories:
  Adaptor     1pcs
  Output Cable   2pcs
  Cellphone connectors: 5pcs
  Laptop connectors: 10pcs
·Size: 190(L)*103(W)*24(H) mm
·Weight: 605g
·Color: black,white