These Laptops Batteries are specifically designed and built for the SONY Sony VAIO PCG-GR5 Series With a longer power lasting time and quick time to be fully charged, the battery gives you the best performance possible compared to original manufacturer standards for SONY Sony VAIO PCG-GR5 Series Batteries; even it delivers 5% more power than the original SONY Sony VAIO PCG-GR5 Series Battery.