Coolgo Generic New Laptop Battery 6-CELL Replacement for GATEWAY MD7801u Laptop AS07B31 AS07B41 18 Months Warranty [li-ion 6-cell 5200mAh] High-Quality replacement for Acer Aspire 5920 11.1V 5200mAh black 204.80*68.27*20.00mm 216.1g laptop battery Quality Certication: All the products pass the ISO9001, CE and ROHS, FCC multiple international authentication and completely accord with environmental protection requirement. Consummate Design: Excellent design makes the product not only has the overcharge, discharge and short circuit multiple protection, but also to balance charge-discharge of all the internal cells. Free shipping via USPS first class package from USA, 24 x 7 Email Support. Brand new direct from Professional Manufacturer, 18 Months warranty! Please note: Sold and ship exclusively by Coolgo.