These Laptops Batteries are specifically designed and built for the ACER Acer TravelMate 620 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 ACER Acer TravelMate 620 Series Batteries; even it delivers 5% more power than the original ACER Acer TravelMate 620 Series Battery.