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 on the computer or an AC power loss occurs.
NOTE: When you disconnect AC power, the display brightness is automatically decreased to save battery life. Select computer models can switch between graphic modes to increase battery life. For more information, see Hybrid Graphics (select models only) on page 45.
Finding additional battery information
HP Support Assistant provides the tools and information about the battery. To access battery information, select the HP Support Assistant app on the Start screen, and then select Battery and performance.
●Battery Check tool to test battery performance
●Information on calibration, power management, and proper care and storage to maximize battery life
●Information on battery types, specifications, life cycles, and capacity
To access battery information:
▲To access battery information, select the HP Support Assistant app on the Start screen, and then select Battery and performance.
Using Battery Check
HP Support Assistant provides information on the status of the battery installed in the computer. To run Battery Check:
1.Connect the AC adapter to the computer.
NOTE: The computer must be connected to external power for Battery Check to work properly.
2.To access battery information, select the HP Support Assistant app on the Start screen, and then select Battery and performance.
Battery Check examines the battery and its cells to see if they are functioning properly, and then reports the results of the examination.
Displaying the remaining battery charge
▲Move the pointer over the power meter icon on the Windows desktop in the notification area, at the far right of the taskbar.
Maximizing battery discharge time
Battery discharge time varies depending on features you use while on battery power. Maximum discharge time gradually decreases as the battery storage capacity naturally degrades.
40 Chapter 6 Power management
