HP COMPAQ 309971-002 Hardware Manual page 4

Contents
Using Quick Launch Buttons . . . . . . . . . . . . . . . . . . . . . . 2-9
Using Keypads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
3 Battery Packs
Running the Notebook on Battery Power . . . . . . . . . . . . 3-1
Inserting or Removing the Primary Battery Pack . . . . . . 3-3
Using the Optional Travel Battery Pack . . . . . . . . . . . . . 3-6
Charging a Battery Pack. . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Monitoring the Charge of a Battery Pack . . . . . . . . . . . 3-13
Managing Low-Battery Conditions . . . . . . . . . . . . . . . . 3-16
Calibrating a Battery Pack . . . . . . . . . . . . . . . . . . . . . . . 3-18
Conserving Battery Power . . . . . . . . . . . . . . . . . . . . . . . 3-22
Storing a Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Disposing of a Used Battery Pack . . . . . . . . . . . . . . . . . 3-25
Finding More Power Information . . . . . . . . . . . . . . . . . 3-25
iv
Decreasing Screen Brightness (Fn+F9). . . . . . . . . . . 2-7
Increasing Screen Brightness (Fn+F10) . . . . . . . . . . 2-8
Using Hotkeys and Shortcut Keys with External
Keyboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Using the Embedded Numeric Keypad . . . . . . . . . . 2-10
Using an External Keypad. . . . . . . . . . . . . . . . . . . . 2-11
Inserting or Removing the Battery Pack . . . . . . . . . . 3-6
Attaching or Detaching the Travel Battery Pack. . . . 3-8
Obtaining Accurate Charge Information . . . . . . . . . 3-13
Displaying Charge Information on the Screen . . . . 3-14
Displaying Charge Information on a Battery Pack . 3-15
Identifying Low-Battery Conditions . . . . . . . . . . . . 3-16
Resolving Low-Battery Conditions . . . . . . . . . . . . . 3-17
When to Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
How to Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Conserving Power as You Work . . . . . . . . . . . . . . . 3-22
Selecting Power Conservation Settings. . . . . . . . . . 3-23
Hardware Guide