Brand New 9 Cell, 7200mAh, 85whr Ultra Hi Capacity Replacement Li-Ion re-chargeable battery for Dell Inspiron 6400 laptop computers. Always on the go? No more worries about running out of battery power! You can back up your system with this 9-Cell 85whr Ultra Hi Capacity Lithium-Ion Primary Battery from POWWER. Product compatible with these Dell Laptop Models: Dell Inspiron Notebook Series: Dell Inspiron 6400, Inspiron 1505, Inspiron E1501, Inspiron E1505, Inspiron 1501. Compatible DELL Part Numbers: 312-0428 312-0461, 51-10339, GD761, KD476, PD942, PD945, PD946, RD850, RD857, UD260, UD264, UD265, UD267, RD859, TD344, TD347, TD349. 1 Year Warranty: We will replace this or any other item that you purchase from us for 1 year from the date your order is processed if it fails under normal wear or is defective. We always sell new high quality items and we are willing to back them up! The POWWER / SterlingTek name, images, and contents of this SterlingTek listing are protected by trademarks and copyrights. Copyright © 2008 SterlingTek. Quality Products @ Great Prices .... Guaranteed. SterlingTek!!! Serving You Since 1999.