Outecc&reg; New Replacement L12S4F01 battery L12L4K51 for Lenovo IdeaPad Flex 14/14M/15/15M Series US ship 14.4V 2200mah ship from USA L12L4A01 L12L4K51 L12M4A01 L12M4E51 L12M4K51 L12S4A01 L12S4E51 L12S4F01 L12S4K51 New replacement, one year warranty Lenovo IdeaPad Flex 14 Series Lenovo IdeaPad Flex 14M Series Lenovo IdeaPad Flex 15 Series Lenovo IdeaPad Flex 15M Series Lenovo IdeaPad S500 Series Lenovo IdeaPad S500 Touch Series