45N1109 Integrated Battery Pack 2060mAh 23.5Wh Warranty 1 Year Function battery performs Laptop , Main power battery for portable computers Battery Chemistry Lithium polymer , Lightweight rechargable Number of Cells 3 Cells Runtime Short Life Voltage 11,4 V Capacity 2060 mAh Weight 180 g Dimensions 207 mm x 64 mm x 11 mm Shape Rectangular Brand Name This is a Original Lenovo branded product.