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Battery for Dell Latitude E5440 P44G E5540 P44G001 Laptop 4400mAh | eBay
M7T5F - 6-Cell Battery for Latitude E5440 E5540 - CPU Medics
Amazon.com: Jeunesse E5440 E5540 New Laptop Battery Replacement for DELL Latitude E5440 E5540 N5YH9 VV0NF 0M7T5F VVONF WGCW6 VJXMC CXF66 0K8HC 1N9C0 7W6K0 F49WX NVWGM 11.1V 5200mAH Li-ion : Electronics