Specification: Battery type: Li-ion Voltage: 11.1V (Compatible with 10.8V) Capacity: 5200mAh Cell: 6 Cells recharge cycles： 500 Operation time: Around 2-3 hours Compatible Models： For Dell Latitude E5440 E5540 Compatible Part Numbers： 0K8HC 0M7T5F 1N9C0 7W6K0 F49WX N5YH9 NVWGM VVONF WGCW6.
