HP 15-d099nr TouchSmart Notebook PC - Manual (Page 30)

Identifying low battery levels
When a battery that is the sole power source for the computer reaches a low or critical battery level,
the following behavior occurs:
● If Hibernation is enabled and the computer is on or in Suspend state, the computer initiates
Hibernation.
● If Hibernation is disabled and the computer is on or in Suspend state, the computer remains
briefly in Suspend state, and then shuts down and loses any unsaved information.
Resolving a low battery level
Resolving a low battery level when external power is available
▲ Connect one of the following devices:
● AC adapter
● Optional power adapter purchased as an accessory from HP
Resolving a low battery level when a charged battery is available
1. Turn off the computer or initiate Hibernation.
2. Replace the discharged battery with a charged battery.
3. Turn on the computer.
Resolving a low battery level when no power source is available
● Initiate Hibernation.
● Save your work and shut down the computer.
Resolving a low battery level when the computer cannot exit Hibernation
When the computer lacks sufficient power to exit Hibernation, follow these steps:
1. Replace the discharged battery with a charged battery, or connect the AC adapter to the
computer and to external power.
2. Exit Hibernation by briefly pressing the power button.
Conserving battery power
● Turn off wireless and local area network (LAN) connections and exit modem applications when
you are not using them.
● Disconnect unused external devices that are not plugged into an external power source.
● Stop, disable, or remove any external media cards that you are not using.
● Decrease screen brightness.
● Initiate Suspend or Hibernation, or shut down when you are not using the computer.
Storing a battery
CAUTION: To reduce the risk of damage to a battery, do not expose it to high temperatures for
extended periods of time.
22 Chapter 5 Managing power