HP EliteBook 8440p - Manual (Page 78)

2. Insert the battery (1) into the battery bay until it is seated.
The battery release latch (2) automatically locks the battery into place.
To remove the battery:
1. Turn the computer upside down on a flat surface.
2. Slide the battery release latch (1) to release the battery.
3. Remove the battery from the computer (2).
Charging a battery
WARNING! Do not charge the computer battery while you are onboard aircraft.
The battery charges whenever the computer is plugged into external power through an AC adapter, an
optional power adapter, or an optional docking device.
66 Chapter 5 Power management