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HP Notebook PCs - HP Battery Alert Appears Before Windows Starts

This document pertains to HP Notebook PCs with the HP Unified Extensible Firmware Interface (UEFI) beginning in late-2008.

On startup, HP utilities perform a system validation. Once your computer has passed this check, the utilities then perform a battery check by examining the remaining capacity of the primary battery as well as the capacity of any secondary battery that may be installed.

Battery storage capacity

The Battery storage capacity is the amount of energy the battery can store to power a portable device such as a notebook PC. The lower the storage capacity of a battery, the shorter amount of time it can power a portable device. All rechargeable batteries gradually lose their storage capacity. This loss in storage capacity (aging) is irreversible and cannot be restored. The maximum storage capacity of a new battery can be very different from the maximum storage capacity of a battery after one year of use.

If the system detects that the storage capacity of the battery is very low, it will display an alert:

Illustration A:
HP Battery Alert
The system has detected the storage capacity of the battery stated below to be very low.
For optimal performance, this battery may need to be replaced.
Primary (internal) Battery (601)
ENTER - Continue Startup
For more information, please visit: www.hp.com\go\techcenter\startup

The message will appear for 15 seconds and then disappear as the normal startup process continues.

Differences between primary and secondary battery messages

  • If Primary (internal) Battery (601) appears in the alert message, it means the measured storage capacity of the primary (internal) battery is less than 25% of the original storage capacity. The number “601” denotes the associated error code that is recorded in the system log.

  • If Secondary (external) Battery (602) appears in the alert message, it means the measured storage capacity of the secondary (external) battery is less than 25% of the original storage capacity. The number “602” denotes the associated error code that is recorded in the system log.

Resolving the Battery Alert message

To resolve a Battery Alert message, you should perform the Battery Test in the System Diagnostics (F2) environment, and calibrate the battery for best performance.

To access the HP System Diagnostics Battery Test , turn on the computer and immediately press the esc key to display the Startup Menu. Press the System Diagnostics F2 key, and then select the Battery Test option.

See Checking the Status of the Battery for more detailed instructions.

Frequently asked questions

  1. Why does HP offer the Battery Alert?

    The HP Battery Alert was created to help improve mobile computing experiences by alerting you before a battery has lost all of its usable storage capacity.

  2. What is “storage capacity”, and what does it mean when battery storage capacity is “very low”?

    The storage capacity, also known as capacity, of a rechargeable battery is the amount of energy the battery can store to power a portable device such as a notebook PC. The lower the storage capacity of a battery, the shorter amount of time it can power a portable device. When battery storage capacity is very low, the battery is near the end of its useful life. All rechargeable batteries gradually lose their storage capacity. This loss in capacity (aging) is irreversible and cannot be restored.

  3. Where will the URL in the Battery Alert message take me?

    The HP Battery Alert includes an Error Message Website (URL) that is part of the HP Technology Center and provides information about the HP Battery Alert. The URL in the HP Battery Alert message can not link to the website because the PC operating system has not yet started or enabled a web browser application. The HP Battery Alert appears for a period of 15 seconds so that the URL can be written down.

  4. When will I see the HP Battery Alert message?

    The HP Battery Alert measures the installed batteries each time the notebook PC is starting up, resuming from hibernate or resuming from a hard reset. If the measured storage capacity of an installed battery is less than 25% of the original battery capacity during one of these instances, the HP Battery Alert message will appear. The HP Battery Alert does not measure installed batteries when the notebook PC is resuming from standby.

  5. Can the HP Battery Alert be disabled?

    No, the HP Battery Alert can not be disabled.

  6. Can I bypass or skip the HP Battery Alert message?

    The HP Battery Alert message appears for a period of 15 seconds, after which the notebook PC will automatically continue starting up. After seeing the HP Battery Alert message appear, you may depress the Enter key to have the notebook PC continue starting up before the 15 second period lapses.

  7. What should I do after seeing the HP Battery Alert message?

    After seeing the first instance of an HP Battery Alert message, you should consider replacing your battery with a new battery soon.

  8. What if I continue to use the battery after seeing the HP Battery Alert message?

    As with all rechargeable batteries, your battery will continue to gradually lose storage capacity with time and use. This loss of capacity will continue even after the HP Battery Alert appears, so continued use of the battery could result in an unplanned system shutdown.

  9. Which HP notebook PC models support the HP Battery Alert?

    HP and Compaq branded business and consumer notebook PC models announced June 2008 and later include and support the HP Battery Check utility. The HP Battery Alert message supports HP and Compaq branded primary and secondary batteries for these models and does not support third party batteries. The HP Battery Alert message is not available for or supported on HP or Compaq branded business or consumer notebook PC models announced prior to June 2008.

  10. Which operating systems support the HP Battery Alert?

    The HP Battery Alert is within the notebook PC Basic Input/Output System (BIOS) and operates independently of the operating system. The HP Battery Alert supports Microsoft® Windows® XP and Windows Vista® and should also function on supported HP notebook models running other operating systems that are certified or supported on those models. HP does not support the HP Battery Alert on any HP or Compaq branded business or consumer notebook PC running an operating system that is not certified or supported by HP.

  11. Are there any differences between the HP Battery Alert on business notebook PCs and consumer notebook PCs?

    The HP Battery Alert is consistent across business and consumer notebook PC models with one exception. On business notebook PC models only, the F10 (Setup) menu includes an option to show or hide the Error Message website (URL) that users can access to view additional information about the HP Battery Alert message. The default setting is for the Error Message website (URL) to be shown [Illustration B]. As an option, the Error Message website (URL) can be hidden [Illustration C].

    Illustration B: HP Battery Alert Message with URL Shown (Default)
    HP Battery Alert
    The system has detected the storage capacity of the battery stated below to be very low.
    For optimal performance, this battery may need to be replaced.
    Primary (internal) Battery (601)
    ENTER - Continue Startup
    For more information, please visit: www.hp.com/go/techcenter/startup
    Illustration C: HP Battery Alert Message with URL Hidden (Optional on Business Notebook PC Models Only)
    HP Battery Alert
    The system has detected the storage capacity of the battery stated below to be very low.
    For optimal performance, this battery may need to be replaced.
    Primary (internal) Battery (601)
    ENTER - Continue Startup
  12. How do I hide or re-show the URL part of the HP Battery Alert message?

    On business notebook PC models only, the URL part of the HP Battery Alert message is shown by default and can be hidden by following the instructions below. These instructions can also be used to show the URL if it was previously hidden.

    1. Power on the notebook PC and depress the F10 key while “F10 = Setup” appears near the bottom of the display.

      • If the notebook PC boots to the operating system (e.g. Windows), the key was not depressed in time. Power off the notebook PC and proceed to step a.

    2. Navigate to the System Configuration menu.

    3. Navigate to the Boot Options menu.

    4. Navigate to the Display Diagnostic URL option and toggle to Disable this option if you want to hide the URL.

    5. Navigate to the Display Diagnostic URL option and toggle to Enable this option if you want to show the URL.

    6. Navigate to the Main menu and select the option to Save settings and exit .

  13. How long is the battery warranty?

    Most HP notebook PC batteries are warranted for a period of one (1) year from the later of the notebook PC manufacture date or the date on your valid proof of purchase.

  14. What if I believe my battery is not functioning or performing properly?

    See Checking the Status of the Battery for instructions.

  15. How do I get a replacement (new) battery?

    To purchase a replacement battery for your HP notebook PC, please see Purchasing a Replacement Battery , call your HP sales representative, or contact an authorized HP reseller. To help expedite the process, write down the model number of your notebook PC prior to contacting HP or an HP authorized reseller. The notebook PC model number is needed to determine the correct battery for your notebook PC.

  16. How is the HP Battery Alert different than HP Battery Check?

    The HP Battery Check and the HP Battery Alert use the same core logic and are designed to work together but serve different purposes.

    The HP Battery Check is an easy to use Windows-based utility you can launch that provides information about the charge status and capacity of the batteries installed in your notebook PC. It also informs you when the measured storage capacity of a battery is less than 50% of the original battery capacity and again when the measured storage capacity of a battery is less than 25% of the original battery capacity. The HP Battery Check is pre-installed on HP and Compaq branded notebook PC models announced in 2005 and later. The HP Battery Check supports HP and Compaq branded notebook PC models announced in 2005 and later, that utilize industry-standard lithium-ion smart batteries.

    See Checking the Status of the Battery for more information about the HP Battery Check.

    In contrast, the HP Battery Alert is an integrated Basic Input/Output System (BIOS)-based alert that displays a message only when the measured storage capacity of a battery is less than 25% of the original battery capacity. The HP Battery Alert measures battery storage capacity only when the notebook PC is starting up, resuming from hibernate, or resuming from a hard reset. The HP Battery Alert supports only HP and Compaq branded business and consumer notebook PC models announced June 2008 and later.

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