Batterytec Laptop Battery Samsung QX SF Series, Samsung QX410-J01, Samsung QX410-S02 NP-SF310 NP-SF410 NP-SF510, AA-PN3VC6B, AA-PN3NC6F. [11.1V 5500mAh, 12 Months Warranty] Battery Type:Li-Polymer, Cells:4-cell, Capacity:5500mAh; Voltage: 11.1V. 100% New Manufacturer. To 500 charging cycles during the lifetime of the battery. CE-/FCC-/RoHS-Certified for safety. 24 x 7 email support, 12 months Warranty without problems. Class A cells provide fast loads and low power consumption, chip protection offers both security and stability.