Discover the power of extended mobility with the BTI notebook battery, specifically designed for those who demand reliability and longevity from their power devices. This battery, featuring a robust 5100 mAh capacity and 58.2 Wh of energy, is engineered to keep your notebook running longer, minimizing the need for frequent recharges. With its advanced lithium-ion technology, it not only offers a reliable power source but also maintains its performance over many cycles, ensuring that your device is always ready when you are. Compatibility is key, and this battery is designed to seamlessly match Apple's 616-00675 and A2171 specifications, providing a perfect fit and optimal functionality. Whether you're a professional on the move or a student moving from class to class, this battery is the ideal choice for anyone looking to maximize their notebook's uptime without compromising on performance.