L19C4PH2 5B10Z33895 5B10Z33896 L19M4PH2 SB10Z33898 SB10Z33894. Only fit for Lenovo Yoga 720 13" laptop and Yoga 730 13" laptop, NOT fit for Yoga 720-12", 720-15", 730-15", 720S S730 laptop. B.Next, check if the battery is properly installed.
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