Dell Inspiron 15 (M5030, Mid 2010) - Manual (Page 80)

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Specifications
Touch Pad
X/Y position
resolution
(graphics table
mode)
240 cpi
Size
Width 90.00 mm (3.54 inches)
sensor‑active area
Height 46.00 mm (1.81 inches)
rectangle
Battery
6‑cell “smart” lithium ion
Depth
57.64 mm (2.27 inches)
Height 22.80 mm (0.9 inches)
Width 214 mm (8.43 inches)
Weight 0.34 kg (0.75 lb)
Voltage 11.1 VDC
Charge time when
the computer
is powered off
(approximate)
4.5 hours
Operating time varies depending on
operating conditions