Upon startup, a screen pops up and says: HP Battery Alert The system has detected the storage capacity of the battery stated below to be very low. For optimal performance the battery may need to be replaced. Primary (internal) Battery <601> contact: \go\techcenter\startup
This status message is displayed when there is decrease in capacity of battery that occurs over time and with use. The battery should be replaced to get the most working time out of your battery. The battery reports a failure and needs to be replaced as soon as possible. Replace the battery.
The message is displayed for 15 seconds before the startup process continues. 601: If Primary (internal) Battery (601) is displayed in the alert message, the measured storage capacity of the primary (internal) battery is less than 25% of the original storage capacity.
605: Battery Counterfeit Check Error: A third-party battery was detected. If you purchased the battery from a reseller, contact HP. 607: Primary (internal) battery is weak with low temperature. 608: Secondary (internal) battery is weak with low temperature.
The Battery Test takes about two minutes. The Battery Calibration, if needed, requires 12 to 14 hours. You can cancel at any time by pressing the esc key. Wait while the battery check completes. When the testing is done, review the first line on the Battery Check page that displays the status or condition of the battery.
HP Battery Check did not detect a battery. A battery is not installed or detected in the battery compartment. If a battery is installed, remove the battery and inspect the pins to see if there is dirt or other foreign matter blocking the connection.