User Guide
Page 124
...computer is powered off even when the AC adapter is extremely hot or cold. Charging the RTC battery Your computer has an internal real-time clock (RTC) battery. The RTC battery does not charge while the computer is turned off . When fully charged, it maintains this ..., and glows green when it reaches room temperature. ❖ The battery is almost completely discharged. The battery may not start charging immediately under the following error message during startup: BAD RTC BATTERY BAD CHECKSUM (CMOS) CHECK SYSTEM NOTE The above error message may display the incorrect time...
...computer is powered off even when the AC adapter is extremely hot or cold. Charging the RTC battery Your computer has an internal real-time clock (RTC) battery. The RTC battery does not charge while the computer is turned off . When fully charged, it maintains this ..., and glows green when it reaches room temperature. ❖ The battery is almost completely discharged. The battery may not start charging immediately under the following error message during startup: BAD RTC BATTERY BAD CHECKSUM (CMOS) CHECK SYSTEM NOTE The above error message may display the incorrect time...