Dell Latitude C840 - Manual (Page 113)

Operating angle 0° (closed) to 180°
Viewing angles:
Horizontal ±40°
Vertical +10°/–30°
Pixel pitch 0.20 x 0.20 mm (SXGA+)
0.19 x 0.19 mm (UXGA)
Power Consumption:
Panel with backlight (typical) 4.7 W using battery
6.2 W using AC power
Controls brightness can be controlled through keyboard
shortcuts
Keyboard
Number of keys 87 (U.S. and Canada); 89 (Brazil); 88 (Europe); 90
(Japan)
Key travel 2.7 mm ± 0.3 (0.11 inch ± 0.016 inch)
Key spacing 19.05 mm ± 0.3 mm (0.75 inch ± 0.012 inch)
Layout QWERTY/AZERTY/Kanji
Touch Pad
X/Y position resolution (graphics table mode)
240 cpi
Size:
Width 64.88 mm (2.55-inch) sensor-active area
Height 48.88-mm (1.92-inch) rectangle
Track Stick
X/Y position resolution (graphics table mode)
250 count/sec @ 100 gf
Size protrudes 0.5 mm higher than surrounding key caps
Battery
Type 8-cell "smart" lithium ion (4400 mAh)
Dimensions:
Depth 88.5 mm (3.48 inches)
Height 21.5 mm (0.83 inch)
Width 139.0 mm (5.47 inches)
Weight 0.43 kg (0.95 lb)
Voltage 14.8 VDC
Charge time (approximate):
Computer on 2.5 hours
Computer off 1 hour
Operating life approximately 2.5 to 3 hours
Life span (approximate) 400 discharge/charge cycles
Temperature range:
Operating 0° to 35°C (32° to 95°F)
Storage –40° to 65°C (–40° to 149°F)
AC Adapter
Input voltage 90 to 135 VAC and 164 to 264 VAC
Input current (maximum) 1.5 A
Input frequency 47 to 63 Hz
Output current 5.5 A (maximum at 4-second pulse);
4.5 A (continuous)
Output power 90 W
Rated output voltage 20.0 VDC