Coolgo New Laptop Battery for Dell Studio 17 1745 1747 1749 Series U150P U164P W080P Y067P 0W077P - 18 Months Warranty [li-ion 6-cell 11.1V 5200mAh Black] High-Quality laptop battery replacement for Dell Studio 1747 1745 1749 11.1V 5200mAh Black 206*58*24mm 312g 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. Environmental Test: Standard modern assembly line. All products have passed a variety of charge-discharge and aging test before they leave the factory. 100% quality test for all items. Free shipping via USPS first class package from USA, 24 x 7 Email Support. Brand new direct from Professional Manufacturer, 18 Months warranty!