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Table 19. Power adapter specifications (continued)
Description
Operating
Storage
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.
Battery
The following table lists the battery specifications of your Latitude 5540.
Table 20. Battery specifications
Description
Battery type
Battery voltage
Battery weight
(minimum)
Battery dimensions:
Height
Width
Depth
Temperature range:
Operatin
g
Storage
Battery operating time
Battery charging time
(approximate)
NOTE:
Control
the charging time,
duration, start and
26
Specifications of Latitude 5540
Option one
0°C to 40°C (32°F to 104°F)
-20°C to 70°C (-4°F to 158°F)
Option one
3 cell, 42 WHr, lithium-
ion, ExpressCharge +
ExpressCharge Boost
11.40 VDC
0.19 kg (0.41 lb)
5.73 mm (0.22 in.)
263 mm (10.35 in.)
68.90 mm (2.71 in.)
● Charge: 0°C to
45°C (32°F to
113°F)
● Discharge: 0°C to
70°C (32°F to
158°F)
-20°C to 65°C (4°F to
149°F)
Varies depending on
operating conditions
and can significantly
reduce under
certain power-intensive
conditions.
● From 0% up to
35% in 20 minutes
(ExpressCharge
Boost)
Option two
0°C to 40°C (32°F to 104°F)
-40°C to 70°C (-40°F to 158°F)
Option two
3 cell, 42 WHr, lithium-ion,
Long Cycle Life
11.40 VDC
0.19 kg (0.41 lb)
5.73 mm (0.22 in.)
263 mm (10.35 in.)
68.90 mm (2.71 in.)
● Charge: 0°C to 45°C
(32°F to 113°F)
● Discharge: 0°C to
70°C (32°F to 158°F)
-20°C to 65°C (4°F to
149°F)
Varies depending on
operating conditions and
can significantly reduce
under certain power-
intensive conditions.
● 80% in 1 hour
● 2 hours to full
● 3 hours to full
(Standard charge)
Option three
0°C to 40°C (32°F to
104°F)
-40°C to 70°C (-40°F
to 158°F)
Option three
Option four
3 cell, 54
3 cell, 54 WHr,
WHr, lithium-ion,
lithium-ion, Long
ExpressCharge +
Cycle Life +
ExpressCharge Boost
ExpressCharge
11.40 VDC
11.40 VDC
0.22 kg (0.48 lb)
0.22 kg (0.48 lb)
5.73 mm (0.22 in.)
5.73 mm (0.22 in.)
263 mm (10.35 in.)
263 mm (10.35 in.)
68.90 mm (2.71 in.)
68.90 mm (2.71 in.)
● Charge: 0°C to
● Charge: 0°C to
45°C (32°F to
113°F)
● Discharge: 0°C
● Discharge: 0°C
to 70°C (32°F to
158°F)
-20°C to 65°C (4°F
-20°C to 65°C (4°F
to 149°F)
to 149°F)
Varies depending
Varies depending
on operating
on operating
conditions and can
conditions and can
significantly reduce
significantly reduce
under certain power-
under certain power-
intensive conditions.
intensive conditions.
● From 0% up
● 80% in 1 hour
to 35% in
● 2 hours to full
20 minutes
● 3 hours to
45°C (32°F to
113°F)
to 70°C (32°F to
158°F)
full (Standard
charge)
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