Dell Latitude 5420 Owner's Manual page 218

Layout QWERTY/
AZERTY/
Kanji
Touchpad
Active
Area
X-axis 80.00
mm
Y-axis 40.70
mm
Battery
Type 4-, 6- or 9-cell
"smart" lithium ion
Dimensions:
Height
4-, 6-, 20.00 mm (0.79
and 9- inch)
cell
Width
4- and 208.00 mm (8.18
6-cell inches)
9-cell 214.00 mm (8.43
inches)
Depth
4- and 48.08 mm (1.89
6-cell inches)
9-cell 71.79 mm (2.83
inches)
Weight
4-cell 240.00 g (0.53 lb)
6-cell 344.73 g (0.76 lb)
9-cell 508.20 g (1.12 lb)
Voltage
4-cell 14.8 VDC
6- and 9- 11.1 VDC
cell