EC TECHNOLOGY&reg; New High Quality New 6 Cell Laptop 11.1V Li-ion 4400mAh Battery For Dell Inspiron 15R 17R 14R 13R N5110 N5010 N4110 N4010 N7110 N3010 M5110 M4110 M501 M503 Series, Fits J1KND 4T7JN 04YRJH 07XFJJ 9T48V 9TCXN 383CW W7H3N FMHC10 YXVK2 312-0233 312-0234 451-11510 - (12-Month Warranty) Battery type: Li-ion; Cells: 6-cell; Capacity: 4400mAh; Voltage: 11.1V. Built with premium materials and undergoing strict QC process, circuit protection ensures both safety and stability. Grade A cells ensure fast charges and low power consumption, Up to 500 recharge cycles over the life of the battery. Operation time for standard batteries(6-cell, 4400mah): 2-3 hours; for extended batteries(12-cell, 8800mah): over 4 hours (Note: The actual operation time will depend on how much electricity is required by the device and how do you use it.) CE-/ FCC-/ RoHS-Certified for safety, 12-month hassle-free warranty.