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Table 20. Battery specifications (continued)
Description
end time, and so on
using the Dell Power
Manager application.
For more information
on the Dell Power
Manager see, Me
and My Dell on
www.dell.com.
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 5540.
Table 21. Display specifications
Description
Display type
Touch options
Display-panel technology
Display-panel dimensions
(active area):
Height
Width
Diagonal
Display-panel native
resolution
Luminance (typical)
Megapixels
Color gamut
Pixels Per Inch (PPI)
Contrast ratio (typical)
Option one
● 80% in 1 hour
● 2 hours to full
● 3 hours to full
(Standard charge)
CR2032
Option one
15-inch Full High Definition
(FHD)
No
In-Plane Switching (IPS)
193.60 mm (7.62 in.)
344.20 mm (13.55 in.)
396 mm (15.60 in.)
1920 x 1080
250 nits
262,144 colors
45% NTSC
141
700:1
Option two
CR2032
Option two
15-inch Full High Definition
(FHD)
Yes
In-Plane Switching (IPS)
193.60 mm (7.62 in.)
344.20 mm (13.55 in.)
396 mm (15.60 in.)
1920 x 1080
250 nits
262,144 colors
45% NTSC
141
700:1
Option three
Option four
(ExpressCharge
Boost)
● 80% in 1 hour
● 2 hours to full
● 3 hours to
full (Standard
charge)
CR2032
CR2032
Option three
15-inch Full High Definition
(FHD), ComfortView Plus
Low Blue Light, Battery
Saving
No
In-Plane Switching (IPS)
193.60 mm (7.62 in.)
344.20 mm (13.55 in.)
396 mm (15.60 in.)
1920 x 1080
400 nits
16,777,216 colors
100% sRGB
141
800:1
Specifications of Latitude 5540
27
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