Weight (maximum) 0.24 kg (0.54 lb) 0.34 kg (0.76 lb)Voltage 11.40 VDC 11.40 VDCCharging time when the computer is off(approximate)4 hours 4 hoursOperating time Varies depending on operating conditionsand can significantly reduce under certainpower-intensive conditions.Varies depending on operating conditionsand can significantly reduce under certainpower-intensive conditions.Life span (approximate) 300 discharge/charge cycles 300 discharge/charge cyclesTemperature range:Operating 0°C to 35°C (32°F to 95°F) 0°C to 35°C (32°F to 95°F)Storage –40°C to 65°C (–40°F to 149°F) –40°C to 65°C (–40°F to 149°F)Coin-cell battery ML1220NOTE: It is recommended that youuse a Dell coin-cell battery for yourcomputer. Dell does not providewarranty coverage for problemscaused by using accessories, parts,or components not supplied by Dell.ML1220NOTE: It is recommended that youuse a Dell coin-cell battery for yourcomputer. Dell does not providewarranty coverage for problemscaused by using accessories, parts,or components not supplied by Dell.DisplayTable 17. Display specificationsType 15.6-inch FHD non-touchscreen 15.6-inch UHD touchscreenResolution (maximum) 1920 x 1080 3840 x 2160Pixel pitch 0.179 mm 0.089 mmPanel technology In-Plane Switching (IPS) In-Plane Switching (IPS)Viewing angle (Left/Right/Down/Up) 80/80/80/80 degrees 80/80/80/80 degreesRefresh rate 60 Hz 60 HzOperating angle 0 degrees (closed) to 135 degrees 0 degrees (closed) to 135 degreesControls Brightness can be controlled usingshortcut keysBrightness can be controlled usingshortcut keysDimensions:Height (excluding bezel) 193.59 mm (7.62 in) 193.62 mm (7.62 in)Width (excluding bezel) 344.16 mm (13.54 in) 344.21 mm (13.55 in)Diagonal (excluding bezel) 394.90 mm (15.6 in) 394.90 mm (15.6 in)Fingerprint readerTable 18. Fingerprint readerSensor technology TouchSensor resolution 108 pixels x 88 pixelsSensor area 5.5 mm x 4.5 mmSpecifications 15