Enhance your mobile computing experience with the BTI notebook battery, specifically designed for users who demand reliability and extended usage from their power devices. This battery, featuring a robust 4050 mAh capacity and 45 Wh energy, is engineered to meet the needs of busy professionals and tech enthusiasts alike. Its 3-cell lithium polymer technology not only provides a reliable power source but also ensures safety and efficiency. With compatibility for specific Lenovo models, including the 01AV481 and L17L3P53, it offers a seamless replacement solution, minimizing downtime and maximizing productivity. Whether you're working on important projects or enjoying multimedia, this battery keeps your notebook powered throughout the day.