Dell Technology Guide
Page 144
... gauge for at least 3 seconds. Checking the Health of the Battery To check the battery health using the charge gauge, press and hold the status button on the number of the lights are on your battery, double-click the Power Meter icon in good condition, and more ... the amount of the charge capacity remains, and you should consider replacing the battery. 144 Power (Power Settings, Power Protection Devices, and Batteries) Charge Left on the Battery To check the battery charge, press and release the status button on the battery charge gauge to illuminate the charge-level lights.
... gauge for at least 3 seconds. Checking the Health of the Battery To check the battery health using the charge gauge, press and hold the status button on the number of the lights are on your battery, double-click the Power Meter icon in good condition, and more ... the amount of the charge capacity remains, and you should consider replacing the battery. 144 Power (Power Settings, Power Protection Devices, and Batteries) Charge Left on the Battery To check the battery charge, press and release the status button on the battery charge gauge to illuminate the charge-level lights.