ZWXJ Laptop Battery for ASUS A41-X550A X550 X550 A450 P550 F550 k550 R510 X450 A450C A550C X550A X550B X550D A41-X550(14.4V 44Wh 3070mAh) New from Manufacturer. Rechargeable Up to 500 times over life of battery. Battery type: Li-ion; Capacity: 97Wh; Voltage: 11.1V; Cells: 9-cell CE-/RoHS-/FCC- Certified and Built-in circuit protection ensure both safety and stability. Replacement for Dell Latitude E5440 E5540 VVONF N5YH9 VJXMC 0M7T5F 0K8HC 1N9C0 7W6K0 F49WX NVWGM CXF66 WGCW6 100% CUSTOMER SATISFACTION GUARANTEE: We believe in Quality and Customer Service, and our top priority is to make you happy. If for whatever reason you are not fully satisfied please CONTACT US and well guarantee to help. We have 12 months warranty on our products. Voltage14.4V Capacity44Wh Cells: 4-cell ColorBlack Battery type : Li-ion