TAUPO 9-Cell Laptop Battery for Dell Latitude E6400 E6410 E6500 E6510, Precision M4500 M4400 M2400, fits P/N PT434 W1193 KY265 312-0748 - 12 Months Warranty Battery type: 9-cell; Capacity: 73wh; Voltage: 11.1V Compatible part numbers: PT434, PT435, PT436, PT437, KY477, KY265, KY266, KY268, FU268, FU274, FU571, MN632, MP303, MP307, NM631, NM633, W1193, KY477, C719R, 312-0748, 312-0917, 312-0754, 312-7414, 451-10583 100% New from Manufacturer. Rechargeable Up to 500 times over life of battery Built-in circuit protection. Automatic power cut off at high electric current, voltage or temperature ensures safety and extended battery life CE-/FCC-/RoHS-Certified for safety, 12 months hassle-free warranty