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Table 20. Power adapter specifications (continued)
Description
Storage
Battery
NOTE:
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.
Table 21. Battery specifications
Description
Type
3-cell lithium-ion 42 WHr,
ExpressCharge Boost
Voltage
11.40 VDC
Weight
0.18 kg ( 0.40 lb)
(maximum)
Dimensions:
Height
5.70 mm (0.22 in.)
Width
95.90 mm (3.78 in.)
Depth
207.90 mm (8.19 in.)
Temperature
range:
Operating ● Charge: 0°C to 50°C
(32°F to 122°F)
● Discharge:0°C to 70°C
(32°F to 158°F)
Storage
–20 °C to 60 °C (-4 °F to 140
°F)
Operating time
Varies depending on operating
conditions and can significantly
reduce under certain power-
intensive conditions.
Charging time
From 0% up to 35% in
(approximate)
20 minutes (ExpressCharge
Boost), 2hr (Express charge),
3hr (Standard charge) (when
the computer is off)
NOTE:
charging time, duration,
start and end time, and so
on using the Dell Power
-40°C to 70°C (-40°F to
158°F)
4-cell lithium-ion 63
WHr
15.20 VDC
0.25 kg ( 0.55 lb)
5.70 mm (0.22 in.)
95.90 mm (3.78 in.)
238.00 mm (9.37 in.)
● Charge: 0°C to
● Discharge:0°C to
–20 °C to 60 °C (-4 °F
to 140 °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),
2hr (Express charge),
3hr (Standard charge)
(when the computer is
Control the
off)
Values
-40°C to 70°C (-40°F to
158°F)
Values
3-cell lithium-ion 42
WHr LCL
11.40 VDC
0.18 kg ( 0.40 lb)
5.70 mm (0.22 in.)
95.90 mm (3.78 in.)
207.90 mm (8.19 in.) 238.00 mm (9.37 in.)
● Charge: 0°C to
50°C (32°F to
122°F)
● Discharge:0°C
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.
2hr ( Express
charge ), 3hr
( Standard charge)
(when the computer
is off).
NOTE:
Control
the charging time,
duration, start and
-40°C to 70°C (-40°F to
158°F)
4-cell lithium-ion 63 WHr
LCL
15.20 VDC
0.25 kg ( 0.55 lb)
5.70 mm (0.22 in.)
95.90 mm (3.78 in.)
● Charge: 0°C to
50°C (32°F to
50°C (32°F to
122°F)
122°F)
● Discharge:0°C to
to 70°C (32°F
70°C (32°F to
to 158°F)
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.
2hr ( Express charge ),
3hr ( Standard charge)
(when the computer is
off).
NOTE:
NOTE:
Control
the charging time,
the charging
duration, start and
time, duration,
end time, and so on
start and end
using the Dell Power
Specifications of Latitude 5520
Control
21