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Laptop Battery maintenance Tips

Using battery power

To reduce potential safety issues, use only the battery provided with the computer, a replacement battery provided by the manufacturer, or a compatible battery purchased from the manufacturer. The computer runs on battery power whenever it is not plugged into external AC power. Computer battery life varies, depending on power management settings, running programs, display brightness, external devices connected to the computer, and other factors. Keeping the battery in the computer whenever the computer is plugged into AC power charges the battery and also protects your work in case of a power outage. If the computer contains a charged battery and is running on external AC power, the computer automatically switches to battery power if the AC adapter is disconnected from the computer or an AC power loss occurs.

Maximizing battery discharge time

Battery discharge time varies depending on the features you use while on battery power. Maximum discharge time gradually decreases as the battery storage capacity naturally degrades. Tips for maximizing battery discharge time:

  • Lower the brightness on the display.
  • Remove the battery from the computer when it is not being used or charged, if the computer
  • contains a user-replaceable battery
  • Store the user-replaceable battery in a cool, dry location.
  • Select the Power saver setting in Power Options

Conserving battery power

  1. Select low power-use settings through Power Options in Windows Control Panel.
  2. Turn off wireless and LAN connections and exit modem applications when you are not using them.
  3. Disconnect unused external devices that are not plugged into an external power source.
  4. Stop, disable, or remove any external media cards that you are not using.
  5. Decrease screen brightness.
  6. Before you leave your work, initiate Sleep or Hibernation, or shut down the computer.

To reduce the risk of damage to a battery, do not expose it to high temperatures for extended periods of time.

If a computer will be unused and unplugged from external power for more than 2 weeks, remove the user-replaceable battery and store it separately.

To prolong the charge of a stored battery, place it in a cool, dry place.

A stored battery should be checked every 6 months. If the capacity is less than 50 percent, recharge the battery before returning it to storage. Calibrate a battery before using it if it has been stored for one month or more.