Before you check the AC adapter and battery status in BIOS, make sure to keep the computer connected to the charger during the entire process. Restart or turn on the computer. At the Dell logo screen, repeatedly tap the “F2” key to access BIOS. The following steps will differ based on your system. For systems manufactured after 2021, click on “Overview.”
In the “POWER” section, check the battery health and AC adapter status. For systems manufactured before 2021, expand the “General” tab and click on “Battery Information.” Check the battery health and AC adapter status.
If the health is “Poor” or the adapter status says “Unknown,” contact us via one of the options on our support website so we can assist you.
