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Battery Check tool to test battery performance
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Information on calibration, power management, and proper care and storage to maximize battery life
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Information on battery types, specifications, life cycles, and capacity
To access battery information:
Select Start > Help and Support > Learn > Power Plans: Frequently Asked Questions.
▲
Using Battery Check
Help and Support provides information on the status of the battery installed in the computer.
To run Battery Check:
1.
Connect the AC adapter to the computer.
NOTE:
2.
Select Start > Help and Support > Troubleshoot > Power, Thermal, and Mechanical.
3.
Click the Power tab, and then click Battery Check.
Battery Check examines the battery and its cells to see if they are functioning properly, and then reports the
results of the examination.
Displaying the remaining battery charge
Move the pointer over the power meter icon on the Windows desktop in the notification area, at the far
▲
right of the taskbar.
Maximizing battery discharge time
Battery discharge time varies depending on features you use while on battery power. Maximum discharge
time gradually decreases as the battery storage capacity naturally degrades.
Tips for maximizing battery discharge time:
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Lower the brightness on the display.
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Remove the battery on the computer when it is not being used or charged, if the computer contains a
user-replaceable battery
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Store the user-replaceable battery in a cool, dry location.
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Select the Power saver setting in Power Options.
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. 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 or critical battery level, the
following behavior occurs:
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The battery light (select models only) indicates a low or critical battery level.
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Chapter 6 Power management
The computer must be connected to external power for Battery Check to work properly.
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