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HP Notebook PCs - HP Battery Alert Appears Before Windows Starts

This document pertains to HP Notebook computers 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 performs 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.
In order to confirm that the battery results are accurate, update the BIOS to the latest version, and then run the battery test again from UEFI Setup or HPSA. For more information on how to update the BIOS, please see the UP support document Updating the BIOS (Notebooks) or Updating the BIOS (Desktops) for specific steps.
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 computer. 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.
Frequently asked questions

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Country: United Kingdom

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