Dentsing L13M4P01 L13L4P01 L13C4P01 Battery for Lenovo Erazer Y40-70AT-IFI Model:L13M4P01 Color:Black Voltage:7.4V Capacity:48WH Compatible P/N:L13M4P01 L13L4P01 L13C4P01 Compatible with: Lenovo Erazer Y40-70AT-IFI Series 6 Months Warranty. If you have any issue, please contact us, we will help you resolve it before you leave a negative feedback or low review.Thanks for your kind support and patience.