SIB-CORP Li-ION Laptop Battery for Sony Vaio PCG-3J1L PCG-51211L PCG-7162L VGN-AW110J/H VGN-AW11XU/Q VGN-AW21M/H VGN-BZ560 VGN-CS115J/R VGN-CS16T/R VGN-FW490JAB VGN-NS240E/P VPCCW2MFX/WJ 100% Compatible - Will not void your original laptop warranty Tech Rover&trade; Quality product with 30-DAY Worry-Free Return Policy Brand New Battery, 4400 mAh, 5200 mAh, Effective Capacity All Tech Rover&trade; branded items carry a 6 month warranty against manufacturer defects. 6-Cell High Throughput Battery