9Rear ComponentsRef Component Description See Also Tether Hole Stylus can be tethered to this hole. P. 5 Stylus/Digitizer PenServes as the input device by tapping on thetouchscreen to make selections and enterinformation.P. 15 Bridge BatteryIndicatorLights up if you unlock the battery latch whileoperating the compute on battery power.The indicator is intended to inform whetheryou can safely hot swap the battery pack.P. 30Green light: The bridge battery can sustainpower for up to 1 minute, during which youcan hot swap the battery pack.Red light: The bridge battery level is too lowfor you to safely hot swap the battery pack.Blinking in amber: The bridge batterycharging is in an abnormal state. Ask forrepair service in case this happens.