Go to Amazon Sites : br br AGPtek? 9 Cells Replacement Laptop Battery for Dell Studio 1745 1747 1749 Compatible Part number: br br Capacity 6600mAh VoltageV 111 Cells 9 Cells Color Black Type Li-ion br Replacement for Dell N856P U164P M905P U150P br Fit Machine Models Dell Studio 1745 Studio 1747 Studio 1749 br Replacement Battery only The Replacement Battery come with Full 1 Year warrantyBatteries are in high grade quality and certified by CE and RoHS br Package Included 1 x Battery for Dell Studio 1745 1747 1749