Wikinu 2800mAh L12S4E01 L12M4E01 Laptop Battery for Lenovo G50 G50-45 Z50 Z70 Z50-70 Z70-80 G50-30 G50-70 G50-80 G505S G500S Z50-75 G400S L12M4A02 L12L4A02 L12S4A02 L12L4E01