Managing Low Battery Levels; Identifying Low Battery Levels; Resolving A Low Battery Level; Resolving A Low Battery Level When External Power Is Available - HP ProBook 5220m - Notebook PC User Manual

The battery light displays charge status:
●
On: The battery is charging.
●
Blinking: The battery has reached a low battery level or critical battery level and is not charging.
● Off: The battery is fully charged, in use, or not installed.

Managing low battery levels

The information in this section describes the alerts and system responses set at the factory. Some low-
battery alerts and system responses can be changed using Power Options in Windows Control Panel
(Start > Control Panel > System and Security > Power Options). Preferences set using Power
Options do not affect lights.

Identifying low battery levels

When a battery that is the sole power source for the computer reaches a low battery level, the battery
light blinks.
If a low battery level is not resolved, the computer enters a critical battery level, and the battery light
blinks rapidly.
The computer takes the following actions for a critical battery level:
●
If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
Hibernation.
●
If Hibernation is disabled and the computer is on or in the Sleep state, the computer remains briefly
in the Sleep state, and then shuts down and loses any unsaved information.

Resolving a low battery level

CAUTION:
and has initiated Hibernation, do not restore power until the power lights turn off.

Resolving a low battery level when external power is available

Connect one of the following devices:
▲
● AC adapter
●
Optional expansion product or optional docking device
●
Optional power adapter

Resolving a low battery level when a charged battery is available

1. Turn off the computer or initiate Hibernation.
2. Remove the discharged battery, and then insert a charged battery.
3. Turn on the computer.

Resolving a low battery level when no power source is available

Initiate Hibernation.
▲
– or –
62 Chapter 5 Power management
To reduce the risk of losing information when the computer reaches a critical battery level