Hi amazon,

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.

Please refer Battery FAQ for more information.

The following activities significantly reduce the operating time of your battery:

• Using optical drives.
• Using wireless communications devices, Express Cards, 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 can 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.

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 may need to purchase a new battery during the life of your computer.

Please reply if you have any further questions.