Discover the power of extended mobility with the BTI notebook battery, specifically designed for those who demand reliability and performance on the go. With a robust 4940 mAh capacity and 57 Wh energy, this battery ensures your notebook remains powered through long meetings, travel, and work sessions without frequent recharging. The 6-cell lithium-ion construction not only promises durability but also provides a stable 11.55 V to keep your device running at peak efficiency. Engineered as an OEM equivalent to HP 863280-855, it ensures seamless compatibility with your notebook, ensuring a perfect fit and optimal performance. Whether you're a professional on the move or a student with a busy schedule, this BTI notebook battery is the reliable power source you need to stay productive without interruption.