Lenovo IdeaPad Y650 - Manual (Page 111)

Appendix C. Specifications
103
Power source
(AC adapter) ƒ Input rating of the AC adapter: 100-240 V ac, 50 to 60 Hz
ƒ 65 W (with integrated graphics card)/90 W (with
discrete graphics card)
Note:
For models with discrete graphics card, the supplied
90 W AC adapter with the unit is recommended.
Otherwise, it will cause AC adapter overheating or
machine malfunction.
Battery
pack ƒ Lithium-ion (Li-Ion) battery pack
– Nominal voltage: 11.1 V dc
– Capacity: 42 Wh
Y650 User Guide V1.0_en.book Page 103 Tuesday, December 16, 2008 2:59 PM