The 2NJNF Battery is an unbranded, generic laptop battery specifically designed for Dell Inspiron 14z (5423) and 15z (5523) models. It has a capacity of 44Wh and a voltage of 11.1V, with six Li-Ion battery cells. This black battery is compatible with the Dell Inspiron product line and is manufactured in China. It provides a reliable power source for your laptop, ensuring extended usage and performance.