This notebook battery is a refurbished model specially designed for the Acer Travelmate 5520 series. With a capacity of 4400mAh and a voltage of 10.8V to 11.1V, this battery offers the perfect solution for users looking for a reliable and sustainable energy source for their laptop. The fact that this battery is refurbished means that it has been carefully checked, cleaned and repaired to meet the high quality standards of a new battery. This ensures that performance and battery life are at their best, without impacting your wallet. By choosing a refurbished notebook battery like this one, you also contribute to sustainability and environmental friendliness. By reusing materials, the production of new batteries is reduced, resulting in a lower ecological footprint. This battery is specifically designed for the Acer Travelmate 5520 series, meaning it fits perfectly and integrates seamlessly with your laptop. With a capacity of 4400mAh, you have enough power to work for a long time without having to constantly look for a socket. By choosing a refurbished notebook battery like this, you not only choose quality and durability, but also affordability. You get a high-quality product for a fraction of the price of a new battery. In short, this refurbished notebook battery is the ideal solution for users who are looking for a reliable and affordable energy source for their Acer laptop.