The BTI notebook battery delivers reliable performance and power efficiency with its lithium-ion technology. Designed to be equivalent to the ASUS C31N1845-1, this battery features a voltage of 11.55 V and a capacity of 3640 mAh, providing an energy output of 42 Wh. With a compact 3-cell design, users can expect a compatible replacement that meets the demands of everyday computing, enhancing the usability and longevity of notebooks equipped with this model.