CBD&trade; New Replacement Battery for Acer AS09C31 AS09C71 AS09C75 Gateway NV4001 NV4001C NV4005C NV4400 (11.1v 5200mah 6 cell) 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