Dell Technology Guide
Page 278
..., replace the CMOS battery. THE COMPUTER IS DOCKED AND ONLY BATTERY POWER IS DETECTED. THIS CAN HAPPEN IF THE POWER ADAPTER IS MISSING, THE POWER CORD IS UNPLUGGED, OR THE COMPUTER IS NOT PROPERLY CONNECTED TO THE DOCKING STATION. Contact Dell for instructions, see "Contacting Dell" on page 281). S T R I L E D - Enter the system setup program and correct...
..., replace the CMOS battery. THE COMPUTER IS DOCKED AND ONLY BATTERY POWER IS DETECTED. THIS CAN HAPPEN IF THE POWER ADAPTER IS MISSING, THE POWER CORD IS UNPLUGGED, OR THE COMPUTER IS NOT PROPERLY CONNECTED TO THE DOCKING STATION. Contact Dell for instructions, see "Contacting Dell" on page 281). S T R I L E D - Enter the system setup program and correct...