BE&middot;SELL New Laptop Battery for Sony Vaio PCG-5J1L PCG-5J2L PCG-5K1L VGN-AR520 VGN-AR605 VGN-AR730 VGN-AR810 VGN-NR220E VGN-NR320E VGN-NR498E Voltage:11.1V; Capacity:5200mAh 100% Brand New CE-/FCC-/RoHS-Certified for safety Built-in circuit protection ensures both safety and stability 12 Months Warranty