Dell Latitude 7280 Owners Manual - Page 46

Battery specifications, AC adapter specifications

Page 46 highlights

Feature Specification Internal interface High-definition audio External interface Microphone-in, stereo headphones, and headset combo connector Speakers Two Internal speaker amplifier 2 W (RMS) per channel Volume controls Hot keys Battery specifications Feature Type 42 WHr (3-cell): Length Width Height Weight Voltage 60 WHr (4-cell): Length Width Height Weight Voltage Life span Temperature range Operating Non-operating Coin cell battery Specification • 3-cell Lithium Prismatic battery with ExpressCharge • 4-cell Lithium Prismatic battery with ExpressCharge 200.5 mm (7.89 inches) 95.9 mm (3.78 inches) 5.7 mm (0.22 inch) 185.0 g (0.41 lb) 11.4 VDC 238 mm (9.37 inches) 95.9 mm (3.78 inch) 5.7 mm (0.22 inch) 270 g (0.6 lb) 7.6 VDC 300 discharge per charge cycles • Charge: 0°C to 50°C (32°F to 158°F) • Discharge: 0°C to 70°C (32°F to 122°F) - 20°C to 65°C (- 4°F to 149°F) 3 V CR2032 lithium coin cell AC adapter specifications Feature Type Input voltage Input current- maximum Input frequency Output current Specification 65 W or 90 W 100 V AC to 240 V AC 1.7 A / 2.5 A 50 Hz to 60 Hz 3.34 A and 4.62 A 46 System specifications

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Feature
Specification
Internal interface
High-definition audio
External interface
Microphone-in, stereo headphones, and headset combo connector
Speakers
Two
Internal speaker
amplifier
2 W (RMS) per channel
Volume controls
Hot keys
Battery specifications
Feature
Specification
Type
3-cell Lithium Prismatic battery with ExpressCharge
4-cell Lithium Prismatic battery with ExpressCharge
42 WHr (3–cell):
Length
200.5 mm (7.89 inches)
Width
95.9 mm (3.78 inches)
Height
5.7 mm (0.22 inch)
Weight
185.0 g (0.41 lb)
Voltage
11.4 VDC
60 WHr (4–cell):
Length
238 mm (9.37 inches)
Width
95.9 mm (3.78 inch)
Height
5.7 mm (0.22 inch)
Weight
270 g (0.6 lb)
Voltage
7.6 VDC
Life span
300 discharge per charge cycles
Temperature
range
Operating
Charge: 0°C to 50°C (32°F to 158°F)
Discharge: 0°C to 70°C (32°F to 122°F)
Non-operating
- 20°C to 65°C (- 4°F to 149°F)
Coin cell battery
3 V CR2032 lithium coin cell
AC adapter specifications
Feature
Specification
Type
65 W or 90 W
Input voltage
100 V AC to 240 V AC
Input current—
maximum
1.7 A / 2.5 A
Input frequency
50 Hz to 60 Hz
Output current
3.34 A and 4.62 A
46
System specifications