Discover the power of reliability and efficiency with Green Cell's notebook battery, a power solution for UPS and power devices. This battery, featuring a substantial 5400 mAh capacity and advanced 4-cell lithium polymer technology, is designed to keep your notebook operational for longer, minimizing the need for frequent charging. Safety is paramount, which is why it comes equipped with both overcharge and overdischarge protection, ensuring your device is shielded from potential power-related damages. Its compatibility with Dell PW23Y models makes it an ideal replacement or spare, providing peace of mind with its precise fit and optimal performance. Whether for work or leisure, this notebook battery meets the demands of your mobile lifestyle.