Acer E101 - Manual (Page 73)

73 Specifications
Note: Length of battery operation will depend on power consump-
tion which is based on system resource use. For example, constantly
using the backlight or using power-demanding applications will
shorten battery life between charges.
Dimensions
Height 113 mm
Width 56 mm
Thickness 12.85 mm
Weight 118 g (with battery)