CWK&reg; New Replacement Laptop Notebook Battery for MP303 MN632 MP307 FU268 0TX283 312-0749 Dell Latitude E6410 E6510 U844G FU272 RG049 4M529 Dell Precision M2400 M4400 M4500 M6400 5.2Ah Dell FU571 312-0749 4N369 NM633 KY266 Precision M4400 M2400 Dell FU268 FU274 Latitude E6400 ATG E6410 ATG E6400 Dell PT434 PT435 PT436 PT437 KY477 KY265 KY266 KY268s KY477 Dell Latitude E6400 Precision M2400 M4400 PT434 KY268 KY266 Dell Latitude E6400 E6500 Condition: Brand New - Grade A cells Battery Type: Li-ion Voltage: 11.1 Volt (10.8 Volt compatible) Capacity: 5200mAh (Better than 4400mAh) 90 Day Money Back. Buy with confidence!