Table 19. Power adapter specifications(continued)
Description Option one Option two
Output current (continuous)
3.25 A 5 A
Rated output voltage
20 VDC 20 VDC
Temperature range:
Operating
0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F)
Storage
-40°C to 70°C (-40°F to 158°F) -40°C to 70°C (-40°F to 158°F)
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 Inspiron 16 7640 2-in-1.
Table 20. Battery specifications
Description Option one Option two
Battery type
4-cell "smart" lithium-ion (64 Wh) 6-cell "smart" lithium-ion (90 Wh)
Battery voltage
15.20 VDC 11.70 VDC
Battery weight (maximum)
0.26 kg (0.57 lb) 0.34 kg (0.75 lb)
Battery dimensions:
Height
5.75 mm (0.23 in.) 7.56 mm (0.30 in.)
Width
271.90 mm (10.70 in.) 294.90 mm (11.61 in.)
Depth
82 mm (3.23 in.) 77.50 mm (3.05 in.)
Temperature range:
Operating
● Charge: 0°C to 50°C (32°F to
1
22°F)
● Discharge: 0°C to 70°C (-4°F to
1
58°F)
● Charge: 0°C to 50°C (32°F to 122°F)
● Discharge: 0°C to 70°C (-4°F to
158°F)
Storage
-20°C to 60°C (-4°F to 140°F) -20°C to 60°C (-4°F to 140°F)
Battery operating time Varies depending on operating
conditions and can significantly
reduce under certain power-intensive
conditions.
Varies depending on operating conditions
and can significantly reduce under certain
power-intensive conditions.
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.
Charging duration when the computer
i
s turned off:
● ExpressCharge: Full charge in 2
h
ours (from 0% to 80% in 75
minutes; 100% in 135 minutes)
● Standard charge: Full charge in 3
h
ours
Charging duration when the computer is
t
urned off:
● ExpressCharge: Full charge in 2 hours
(
from 0% to 80% in 75 minutes; 100%
in 135 minutes)
● Standard charge: Full charge in 3 hours
Specifications of Inspiron 16 7640 2-in-1 23
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