laptop power bank

20000mAH portable power bank
Capacity: 20000mAH
Specification of battery cell: Lithium-ion polymer battery
Chargeing mode: CC/CV (CONSTAND CURRENT- CONSTAND PRESSURE)
Input voltage: 17v 2000mA
Output 1 voltage: 5v
Output  2 voltage:12-19v
Maximum charging current:3000mA
Output 1 Current: 500mA
Output  2 Current:3000mA
Product size:120*172*14 mm
Special feature:
Can stitch different voltage: 5v,12v, 15v,19v
Led swithching light indicate the current voltage
Different voltage switch button and switch
LED DISPLAY for data showing
Double USB Output . Can charge two mobile device at the same time
Recessed rotating led lamp for  lighting
OEM , ODM Accept