Introducing the AP16A4K Laptop Battery, specifically designed for the Acer Swift SF113-31-P865 Series. As a factory-direct product, we guarantee top-notch quality and performance. This lithium battery is carefully crafted to meet the specific power needs of your laptop, ensuring a reliable and long-lasting charge. Say goodbye to unexpected power drains and inconvenience - our battery offers a seamless user experience. With a capacity that matches or exceeds the original battery, you can work, play, and stay connected for extended periods. Trust our factory expertise and upgrade your laptop with the AP16A4K Laptop Battery today!