Dell Alienware 17 (Mid 2013) - Manual (Page 5)

Touchpad
Type Backlit touchpad
Resolution:
Horizontal 1092 dpi
Vertical 1727 dpi
Dimensions:
Height 56 mm (2.20 inches)
Width 100 mm (3.94 inches)
Battery
Type
8-cell “smart” lithium ion (86 WHr)
Dimensions:
Height 19.70 mm (0.78 inch)
Width 170.20 mm (6.70 inches)
Depth 76.35 mm (3 inches)
Weight 0.47 kg (1.03 lb)
Voltage 14.80 VDC
Operating time Varies depending on operating conditions
and can significantly reduce under certain
power-intensive conditions
Life span (approximate) 300 discharge/charge cycles
Temperature range:
Operating 0 °C to 35 °C (32 °F to 95 °F)
Storage –40 °C to 65 °C (–40 °F to 149 °F)
Coin-cell battery CR-2032