Dentsing L12L4E01 L12S4E01 14.4V 41Wh 2900mAh Laptop Battery for Lenovo G400S G405S G410S G500S G505S G510S L12M4E01 Model: L12L4E01 L12S4E01 Color:Black Voltage:14.4V Capacity: 2900mAh 41Wh Compatible P/N:L12L4E01 L12L4A02 L12M4A02 L12S4E01 Compatible with:Lenovo G400S G405S G410S G500S G505S G510S 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.