BATTERY SPECS : Model : TF03XL; Battery Type : Lithium-polymer; Voltage : 11.55V; Capacity : 41.9Wh 3630mAh; Cells : 3-cell; Color : Black with Two Free Screwdrivers; Battery Weight: 8.4oz/ 0.52lb; 100% New from Manufacturer; Up to 500 Recharge Cycles. We have specialized in providing quality laptop accessories from factory directly and quality customer service for more than twenty years. You can use our TF03XL Battery Pavilion for laptop safely.