External Laptop Battery Pack With LCD Display 74WH

Provide extra 2 to 4 hours working time for the notebook PC
Eight range capacity display, blue LCD indication, with alarm and automatically turn off function when the power is low
Overcharge, over discharge, overload, and short circuit protection
Charging while discharging

Dimension: 112 x 175 x 24mm
Weight: 590g
Capacity: 6600mAh/74W
Rated input: 14 to 16V DC
Rated output: 12, 16, and 19V DC
USB out: 5V/700mAh
Working temperature: -10 to 50°C
Charging time: 2 to 4hrs