AC Doctor INC 5200mAh Battery for Dell Latitude E6400 E6410 E6500 E6510 Precision M2400 M4400 M4500 M6500 Laptop Battry Replacement 4M529 KY265 PT434 312-0749 Replacement for laptop battery Dell Latitude E6400 E6410 E6500 E6510 Precision M2400 M4400 M4500 M6500 compatible with original battery part number PT434 PT435 PT436 PT437 KY477 KY265 KY266 KY268 FU268 FU274 FU571 MN632 MP303 MP307 NM631 NM633. Specification: 6 cells 11.1V 5200mAh silver 205.90x46.85x20.90mm 395.0g. Full compatible with your original battery, brand new direct from Professional Manufacturer. CE UL RoHS certified, safe use. 60 days no worry to return or exchange item, 12 months customer service warranty., US local dispatch. Please Note: Please make sure that the product shape of slot and gap are the same size. The battery part numbers listed in the description matches the battery part number on your original battery before you purchase.