CBD&trade; New Replacement Battery for 6MSBG AHA63224819 SQU-413 SQU-412 Gateway MX6400 MX6453 NX500 Laptop Battery type: Li-ion; Capacity: 5200mAh; Cells: 6-cell; Voltage: 11.1V. 100% New from Manufacturer CE-/FCC-/RoHS-Certified for safety Built-in circuit protection ensures both safety and stability 30 days money back guarantee & 60 Days warranty