Dell Precision M20 User Manual page 105

Keyboard
Number of keys
Layout
Touch Pad
X/Y position resolution (graphics table mode)
Size:
Width
Height
Track Stick
X/Y position resolution (graphics table mode)
Size
Battery
Type
Dimensions:
Depth
Height
Width
Weight
Voltage
Charge time (approximate):
Computer on
Computer off
Operating time
Life span (approximate)
Temperature range:
Operating
Storage
AC Adapter
NOTE: The 90-W AC adapter is optional and may not ship with your computer.
Types
Input voltage
Input current (maximum)
Input frequency
Output current:
90 W
65 W
Output power
Rated output voltage
Dimensions:
Height
Width
87 (U.S. and Canada); 88 (Europe); 91 (Japan)
QWERTY/AZERTY/Kanji
240 cpi
64.88 mm (2.55-inch) sensor-active area
48.88-mm (1.92-inch) rectangle
250 count/sec @ 100 gf
protrudes 0.5 mm higher than surrounding keycaps
6-cell "smart" lithium ion (53 WHr) (standard)
4-cell "smart" lithium ion (32 WHr) (optional)
88.5 mm (3.48 inches)
21.5 mm (0.83 inch)
139.0 mm (5.47 inches)
0.32 kg (0.7 lb) (6 cell) 0.25 kg (0.56 lb) (4 cell)
14.8 VDC
2.5 hours
1 hour
varies depending on operating conditions and can be
significantly reduced under certain
conditions
See "Using a Battery" for more information on battery
life.
300 discharge/charge cycles
0° to 35°C (32° to 95°F)
–20° to 65°C (–4° to 149°F)
90 W and 65 W
90–264 VAC (both)
1.7 A (both)
47–63 Hz (both)
5.62 A (maximum at 4-second pulse); 4.62 A
(continuous)
4.34 A (maximum at 4-second pulse); 3.34 A
(continuous)
90 W or 65 W
19.5 VDC (both)
33.8–34.6 mm (1.34–1.36 inches) (90 W)
27.8–28.6 mm (1.10–1.12 inches) (65 W)
60.9 mm (2.39 inches) (90 W)
power-intensive