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Lenovo IdeaPad Y550 User Manual Page 111

Lenovo laptop user guide.
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Y550 UG V1.0_en.book Page 103 Wednesday, December 10, 2008 4:51 PM
Power source
(AC adapter)
Battery
pack
Input rating of the AC adapter: 100-240 V ac, 50 to 60 Hz
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.
Lithium-ion (Li-Ion) battery pack
– Nominal voltage: 11.1 V dc
– Capacity: 56-57 Wh
Appendix C. Specifications
103

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