Appendix C. Specifications

Power source (AC adapter)

ƒInput rating of the AC adapter: 100-240 V ac, 50 to 60 Hz

ƒ90 W

￿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 ƒ Lithium-ion (Li-Ion) battery pack

pack – Nominal voltage: 19 V dc

– Capacity: 56-57 Wh

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Lenovo Y550P manual 104, Appendix C. Specifications