F301 Series F301A Series. X401 Series X401A Series. F401 Series F401A Series. X301 Series X301A Series. X501 Series X501A Series. X501A1 Series ASUS X501U Series. Battery Type: Lithium-ion (Li-ion). 1.Li-Ion Laptop Battery 10.8V and 11.1V are in common use.
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