OMCreate Battery for Dell J1KND, Inspiron N5010 N5030 N5040 N5050 N7010 N7110 N4010 N4110 M5030 M5010 M5110 3520, Vostro 3450 3550 3750-12 Months Warranty [Li-ion 6-Cell] Compatible Part Numbers: J1KND / 4T7JN / 312-0234 / 04YRJH / 9T48V / 383CW / W7H3N / 312-0233 / 451-11510 / 07XFJJ / 9TCXN / YXVK2. Compatible Models: Inspiron N5010 N5030 N5040 N5050 N7010 N7110 N4010 N4110 M5030 M5010 M5110 3520,Vostro 3450 3550 3750. High quality grade "A" cells. Charges quickly. Longer discharge time. Steady output and low power consumption. More than 300 times charge-discharge cycles. Operation time: 1.5 - 3 hours. Actual operation time varies depending on types of the device and the way it is used. 12-months hassle-free warranty service. Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.