The product is a new Li-Polymer battery designed for Apple MacBook Pro Retina 13” models from 2019 and 2020, specifically compatible with A2159, A2289, and A2338. The black battery has a capacity of 5103 mAh and a voltage of 11.41V, manufactured by Apple with a 1-year warranty. It comes as a single unit and is ideal for replacing a worn-out or damaged battery in your MacBook Pro, ensuring a reliable power source for your device. Made in China, this battery is a genuine Apple product specifically designed for your MacBook Pro. Brand new geniune a2171 battery for macbook pro. Next day delivery free of charge. Buy with confidence