TroubleshootingReference
Extending the Battery Life
When your VAIO computer is running on battery power, you can extend the battery life using the following methods.
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Use Sleep mode. [Details]
When you do not need to use your VAIO computer temporarily, you can use Sleep mode. To extend the battery life, use Sleep mode frequently. If you do not intend to use the computer for an extended period of time, turn off the computer.
Resuming the computer from Sleep mode is faster than from booting up the computer.
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Decrease the LCD brightness of the computer screen. [Details]
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Turn down the volume of the speakers and headphones. [Details]
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Disconnect peripheral devices that are not in use.
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