This notebook battery is the perfect solution for users of the Lenovo ThinkPad T420s and T430s series who are looking for a reliable and durable replacement for their current battery. With a capacity of 3600mAh and a voltage of 11.1V, this battery is able to provide a long lifespan and ensure that you can stay productive all day long. What makes this battery even more attractive is the fact that it is a refurbished product. This means the battery has been thoroughly tested, cleaned and repaired to meet the manufacturer's high standards. This means you can be assured that you will receive a high-quality battery that will perform as well as a new battery, but at a fraction of the price. Because this battery is specifically designed for the Lenovo ThinkPad T420s and T430s series, you can rest assured that it will fit perfectly and be compatible with your device. This ensures seamless integration and a hassle-free experience when using your laptop. Whether you are a student, professional or just a user on the go, this battery will ensure that you always have enough power to carry out your tasks. With its reliable performance and durability, you can trust that this refurbished notebook battery will meet all your needs. In short, this refurbished notebook battery for the Lenovo ThinkPad T420s and T430s series is an excellent investment for anyone looking for a high-quality and affordable replacement for their worn-out battery. With its impressive capacity and quality, this battery will not disappoint you.