Dell Inspiron 15z (1570, Mid 2009) - Manual (Page 71)

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Basic Specifications
Battery
4-cell/6-cell “smart” lithium ion:
Depth
53.2 mm
(2.09 inches)
Height 21.4 mm
(0.84 inches)
Width 209.4 mm
(8.24 inches)
Weight 0.26 kg (0.57 lb) (4-cell)
0.35 kg (0.77 lb) (6-cell)
9-cell “smart” lithium ion:
Depth 53.2 mm
(2.09 inches)
Height 41.7 mm
(1.64 inches)
Width 264.6 mm
(10.41 inches)
Battery
Weight 0.52 kg (1.15 lb)
Voltage 11.1 VDC (6/9 cell)
Charge time
(approximate)
4 hours (when the
computer is turned off)
Operating time
(approximate)
Battery operating time
varies depending on
operating conditions.
Coin-cell battery CR-2032
AC Adapter
Input voltage 100–240 VAC
Input current 1.5 A
Input frequency 50–60 Hz
Output power 65 W