HP EliteBook 755 G2 Notebook PC - Manual (Page 51)

Resolving a low battery level
Resolving a low battery level when external power is available
▲ Connect one of the following devices:
● AC adapter
● Optional docking or expansion device
● Optional power adapter purchased as an accessory from HP
Resolving a low battery level when no power source is available
To resolve a low battery level when no power source is available, save your work and shut down the
computer.
Setting power options 41