Reference Guide

Table Of Contents
The operating time of your battery significantly reduces if you use:
Optical drives
Wireless communication devices, ExpressCards, media cards, or USB devices.
High-brightness display settings, 3D screen savers, or other powerintensive programs like complex 3D graphics applications
and games.
You can improve the battery performance by:
Operating the computer on AC power 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 computers power
usage (see Power management).
Enabling the sleep/standby and hibernation features of your computer.
NOTE: 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 can configure the batterycharging behavior to increase the battery life.
Dell longevity mode
Frequently connecting and disconnecting your computer from a power source without allowing the battery to fully discharge
may reduce battery life. The longevity mode feature protects the battery health by moderating the extent to which your battery
charges, and prevents your battery from frequent charge and discharge cycles.
Your Dell laptop automatically monitors the charging and discharging behavior of your battery, and if applicable, displays a
message to enable longevity mode.
NOTE: Dell longevity mode may not be supported on all laptops. To configure Dell longevity mode:
1. Right-click the battery icon on the Windows notification area and click or tap Dell Extended Battery Life Options.
The Battery Meter dialog box appears.
2. Click or tap the Longevity mode tab.
3. Click or tap Enable to turn on, or Disable to turn off Dell longevity mode.
4. Click or tap OK.
NOTE: When longevity mode is enabled, the battery charges only between 88% to 100% of its capacity.
Dell desktop mode
If you primarily use your computer with the power adapter connected, you can enable the desktop mode to moderate the extent
to which your battery is charged. This reduces the number of charge/discharge cycles and improves battery life.
Your Dell laptop automatically monitors the charging and discharging behavior of your battery, and if applicable, displays a
message to enable desktop mode.
NOTE: Dell desktop mode may not be supported on all computers.
To enable or disable desktop mode:
1. Right-click the battery icon on the Windows notification area, and then click or tap Dell Extended Battery Life Options.
The Battery Meter dialog box is displayed.
2. Click or tap the Desktop mode tab.
3. Click or tap Enable or Disable based on your preference.
4. Click or tap OK.
NOTE: When desktop mode is enabled, the battery charges only between 50% to 100% percent of its capacity.
Migration tips
Computer migration is the moving of data and applications between two different computers. The most common reasons
requiring a computer migration are when you purchase a new computer or when you upgrade to a new operating systems.
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References