Acer Extensa 500 Series Replacement NiMH Laptop Battery - Batteries.com Brand Compatible with: Extensa 505DX

Our Nickel-Metal Hydride (NiMH) laptop batteries meet or exceed original battery standards at a fraction of the cost. Made with the highest quality cells, these batteries offer reliable performance and long battery life. Longest performance with no memory effect Japanese made cells Original manufacturer approved protective circuit 100% compatible with original equipment NiMH chargers