Dell Inspiron Inspiron 17R, Reference Manual, Page: 128 / 152

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Improving the Battery Performance
The operating time of a battery, which is the time the battery can hold a charge, varies depending on how you use your laptop computer.
The following activities significantly reduce the operating time of your battery:
Using optical drives.
Using wireless communications devices, ExpressCards, media cards, or USB devices.
Using high-brightness display settings, 3D screen savers, or other power-intensive programs like complex 3D graphics applications and games.
You may improve the battery performance by:
Using the computer while connected to an electrical outlet when possible. Battery life reduces with the number of times the battery is discharged and
recharged.
Configuring the power management settings using Microsoft Windows Power Options to optimize your computer's power usage (see Power
Management ).
Using the Sleep power state when you leave the computer unattended for long periods of time.
The life of the battery decreases over time depending on how often the battery is used and the conditions under which it is used. You may need to purchase
a new battery during the life of your computer.
Related Information
Laptop Battery
Charging the Battery
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