SpecificationVoltage: 11.4V. Capacity: 42Wh / 3500mAh / 3-Cell. Battery Type: Li-ion. Condition: Brand new, from high quality materials, top circuit boards and smart chip. Compatible Part Number3DDDG 3VC9Y 03VC9Y O3VC9Y 45N3J 80JT9 049XH 451-BBZP. (Important Note: There are 4 types' compatible battery, VG93N(92wh), GJKNX(68wh), 93FTF(51wh) and 3DDDG(42wh). Please choose the RIGHT battery model and capacity according to your laptop's original battery.)