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Table 15. Power adapter specifications (continued)
Description
Height
Width
Depth
Weight
Input voltage
Input frequency
Input current (maximum)
Output current (continuous)
Rated output voltage
Temperature range:
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 7640.
Table 16. Battery specifications
Description
Battery type
Battery voltage
Battery weight
(maximum)
Battery dimensions:
Height
Width
Depth
Temperature range:
18
Specifications of Latitude 7640
Option one
22.00 mm (0.866 in.)
66.00 mm (2.598 in.)
55.00 mm (2.165 in.)
0.105 kg (0.231 lbs)
100 VAC – 240 VAC
50 Hz – 60 Hz
1.70 A
● 20 V/3 A
● 15 V/3 A
● 9 V/3 A
● 5 V/3 A
● 20 VDC
● 15VDC
● 9 VDC
● 5 VDC
0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to
-20°C to 70°C (-4°F to
158°F)
Option one
2-cell, 38 Wh, lithium
ion, ExpressCharge™
7.60 VDC
0.156 Kg (0.34 lb)
6.30 mm (0.24 in.)
210.97 mm (8.30 in.)
79.80 mm (3.10 in.)
Option two
28.00 mm (1.10 in.)
51.00 mm (2.01 in.)
112.00 mm (4.41 in.)
0.201 kg (0.443 lbs)
100 VAC – 240 VAC
50 Hz – 60 Hz
1.70 A
● 20 V/3.25 A
● 15 V/3 A
● 9 V/3 A
● 5 V/3 A
● 20 VDC
● 15VDC
● 9 VDC
● 5 VDC
104°F)
-40°C to 70°C (-40°F to
158°F)
Option two
3-cell, 57 Wh, lithium ion,
ExpressCharge™
11.40 VDC
0.227 kg (0.50 lb)
6.30 mm (0.24 in.)
254.8 mm (10.03 in.)
79.8 mm (3.10 in.)
Option three
26.50 mm (4.80 in.)
60.00 mm (2.36 in.)
122.00 mm (4.80 in.)
0.33 kg (0.731 lbs)
100 VAC – 240 VAC
50 Hz – 60 Hz
1.70 A
● 20 V/5 A
● 15 V/3 A
● 9 V/3 A
● 5 V/3 A
● 20 VDC
● 15VDC
● 9 VDC
● 5 VDC
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, 57 Wh, lithium
2-cell, 38 Wh, lithium
ion, Long Lifecycle,
ion, Long Lifecycle,
ExpressCharge™
ExpressCharge™
7.60 VDC
11.40 VDC
0.156 Kg (0.34 lb)
0.227 kg (0.50 lb)
6.30 mm (0.24 in.)
6.30 mm (0.24 in.)
210.97 mm (8.30 in.)
254.8 mm (10.03 in.)
79.80 mm (3.10 in.)
79.8 mm (3.10 in.)
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