11.1V, 4400mAh, Li-ion Battery fits Dell, Latitude 13 3340, Latitude 13 Education, 48.84WhBattery Fits Models: Latitude 13 3340, Latitude 13 Education, Latitude 3340, Latitude 3350, Latitude E3340, Vostro V131 2 Battery Part Numbers: 3ng29, 451 12176, 451 12177, 451 bbiy, 451 bbiz, 451 bbjb, 5mtd8, 7wv3v, H4pjp, H7wx1, Hgjw8, Jr6xc, Vdyr8, Yfdf9, Yfdf9 02, Yfof9 We supply generic replacements for the OEM batteries; we have had thousands of satisfied customers using these batteries as an economical alternative to the original manufacturer's