Identifying Low Battery Levels; Resolving A Low Battery Level; Resolving A Low Battery Level When External Power Is Available; Resolving A Low Battery Level When No Power Source Is Available - HP Notebook Computer User Manual

Lower the brightness on the display.
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Select the Power saver setting in Power Options.
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Remove a user-replaceable battery from the computer if it will not be used or charged for more
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than 2 weeks.
Turn off wireless devices when you are not using them.
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Disconnect unused external devices that are not plugged into an external power source, such as
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an external hard drive connected to a USB port.
Stop, disable, or remove any external media cards that you are not using.
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Before you leave your work, initiate Sleep or shut down the computer.
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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:
The battery light (select models only) indicates a low or critical battery level.
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– or –
The power meter icon on the Windows desktop shows a low or critical battery notification.
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NOTE:
power settings on page
The computer takes the following actions for a critical battery level:
If Hibernation is disabled and the computer is on or in the Sleep state, the computer remains
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briefly in the Sleep state, and then shuts down and loses any unsaved information.
If Hibernation is enabled and the computer is on or in the Sleep state, the computer initiates
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Hibernation.

Resolving a low battery level

Resolving a low battery level when external power is available

Connect an AC adapter.
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Connect an optional docking or expansion device.
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Connect an optional power adapter purchased as an accessory from HP.
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Resolving a low battery level when no power source is available

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 user-replaceable battery with a charged battery, or connect the AC
adapter to the computer and to external power.
2. Exit Hibernation by pressing the power button.
For additional information about the power meter, see
34.
Using the power meter and
Running on battery power 35