Power Management 97You can improve the battery performance by:• Operating the computer on AC power when possible. Battery lifereduces with the number of times the battery is discharged andrecharged.• Configuring the power management settings using Microsoft WindowsPower Options to optimize your computer’s 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 howoften the battery is used and the conditions under which it is used.You can configure the battery-charging behavior to increase the battery life.Dell Longevity ModeFrequently connecting and disconnecting your computer to a power sourcewithout allowing the battery to fully discharge may reduce battery life.The longevity mode feature protects the battery health by moderatingthe extent to which your battery charges, and prevents your battery fromfrequent charge and discharge cycles.Your Dell laptop automatically monitors the charging and dischargingbehavior of your battery, and if applicable, displays a message requestingyou 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 clickDell Extended Battery Life Options.The Battery Meter dialog box appears.2. Click the Longevity mode tab.3. Click Enable to turn on, or Disable to turn off Dell longevity mode.4. Click OK.NOTE: When longevity mode is enabled, the battery charges onlybetween 88% – 100% of its capacity.