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Table 17. Battery specifications (continued)
Description
Temperature range:
Operating
Storage
Battery operating time
Battery charging time (approximate)
NOTE:
Control the charging time, duration, start and
end time, and so on using the Dell Power Manager
application. For more information about Dell Power
Manager, search in the Knowledge Base Resource at
www.dell.com/support.
Coin-cell battery
CAUTION:
Operating and storage temperature ranges may differ among components, so operating or storing
the device outside these ranges may impact the performance of specific components.
CAUTION:
Dell recommends that you charge the battery regularly for optimal power consumption. If your
battery charge is completely depleted, connect the power adapter, turn on your computer, and then restart
your computer to reduce the power consumption.
Display
The following table lists the display specifications of your Latitude 9440 2-in-1.
Table 18. Display specifications
Description
Display type
Touch options
Display-panel technology
Display-panel dimensions (active area):
Height
Width
Diagonal
Display-panel native resolution
Panel type
Luminance (typical)
Megapixels
Color gamut
24
Specifications of Latitude 9440 2-in-1
Values
● Charge: 0 °C to 50 °C (32 °F to 122 °F)
● Discharge: 0°C to 70°C (32°F to 158°F)
-20 °C to 60 °C (-4 °F to 140 °F)
Varies depending on operating conditions and can significantly
reduce under certain power-intensive conditions.
3 hours (when the computer is off)
Not supported
Values
14-inch, QHD+, touch, corning gorilla glass victus DXC, 500
nits, IPS, battery-saving, Active pen support
Yes
Comfort view plus low blue Light
188.49 mm (7.42 in.)
301.59 mm (11.87 in.)
355.64 mm (14.00 in.)
2560 x 1600
True 8 bits
500 nits
4.09
sRGB 100%
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