Dell Latitude D820 - Manual (Page 81)

WXGA 5.0 W (max.)
WSXGA+ 5.5 W (max.)
WUXGA 6.0 W (max.)
Controls brightness can be controlled through keyboard
shortcuts
Keyboard
Number of keys 87 (U.S. and Canada); 88 (Europe); 91 (Japan)
Key travel 2.7 mm ± 0.3 mm (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 keycaps
Battery
Type:
9-cell lithium-ion battery 85 WHr
6-cell lithium-ion battery 53 WHr
Dimensions:
Depth 77.2 mm (3.08 inches)
Height 20.0 mm (0.80 inch)
Width 187.03 mm (7.48 inches)
Weight:
9-cell lithium-ion battery 0.485 kg (1.07 lb) typical
6-cell lithium-ion battery 0.355 kg (0.783 lb) typical
Voltage 14.8 VDC
Charge time (approximate):
Computer on 2.5 hours
Computer off 1 hour
Operating time varies depending on operating conditions and can be
significantly reduced under certain power-intensive
conditions.
See Battery Performance for more information.
Life span (approximate) 500 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 100–240 VAC
Input current (maximum) 1.5 A
Input frequency 50–60 Hz
Output current 4.62 A
Output power 90 W