Dell Vostro 3550 (Early 2011) - Manual (Page 109)

Battery
Depth 6-cell / 9-cell — 57.80 mm (2.27
inches)
Height
6-cell — 20.80 mm (0.81 inch)
9-cell — 40.15 mm (1.58 inches)
Width 6-cell / 9-cell — 255.60 mm
(10.06 inches)
Weight
6-cell — 340.00 g (0.75 lb)
9-cell — 504.50 g (1.11 lb)
Voltage 11.1 VDC
Vostro 3750
Type
• 6-cell "smart" lithium ion (2.6
AHr)
• 9-cell "smart" lithium ion (2.8
AHr)
Dimensions:
Depth
6-cell — 57.80 mm (2.27 inches)
9-cell — 57.80 mm (2.27 inches)
Height
6-cell — 20.80 mm (0.82 inch)
9-cell — 40.15 mm (1.58 inches)
Width 6-cell/9-cell — 255.60 mm
(10.06 inches)
Weight
6-cell — 340.00 g (0.75 lb)
9-cell — 504.50 g (1.11 lb)
Voltage 11.1 VDC
Temperature range:
109