Lenovo IdeaPad U110 User Manual page 108

Appendix C. Features and Specifications
Power source
(AC adapter)
Battery
pack
97
Input rating of the AC adapter: 90-264 V ac, 47 to 63 Hz
65 W
Lithium-ion (Li-Ion) battery pack
– Nominal voltage: 14.4 V dc (4 cells); 14.4 V/10.8V dc
(7 cells)
– Capacity: 18 Wh (4 cells) ; 57 Wh (7 cells)