10.80V,6600mAh,Li-ion,Replacement for SONY PCG, VAIO SVE, VAIO VGN-AW, VAIO VGN-BZ, VAIO VGN-CS, VAIO VGN-FW, VAIO VGN-NS, VAIO VGN-NW, VAIO VGN-SR, VAIO VPC-B, VAIO VPC-CW, VAIO VPC-F, VAIO VPC-M, VAIO VPC-S, VAIO VPC-Y, VAIO VPC-YA, VAIO VPC-YB, VGN-FW Series Laptop Battery 100% Compatible - Will not void your original laptop warranty Tech Rover&trade; Quality product with 30-DAY Worry-Free Return Policy Brand New Battery, 6600 mAh, 7800 mAh, Effective Capacity All Tech Rover&trade; branded items carry a 6 month warranty against manufacturer defects. 9-Cell High Throughput Battery