LB1 High Performance 7800mAh/11.1V Battery for Dell Inspiron 15R(N5010), M411R, M501, M5010, Fits: J1KND Battery Type: Li-ion; Capacity: 7800mAh/87Wh; Cells: 9-cell; Voltage: 11.1V 100% Brand New from Manufacturer. Rechargeable Up to 500 times over life of battery. Premium Grade A cells ensures peak performance and reliability. Operation time depends on the capacity of the battery, laptop settings, power consumption of equipment, and how you use it. CE-/RoHS-/FCC- Certified and Built-in circuit protection ensure both safety and stability. Live Support Mon-Fri 4am-8pm PST | Sat-Sun 8am-5pm PST | 18 Months Hassle-Free Warranty.