The J1KND Replacement Laptop Battery is a high-quality, black-colored battery designed for Dell Inspiron N3010, N4010, and N5010 laptops. With a voltage of 11.1V and a capacity of 48Wh, this Li-Ion battery is compatible with these specific Dell models and offers a 1-year manufacturer warranty. Made with 6 battery cells and manufactured in China, this unit is a reliable and durable option for keeping your laptop powered up and ready for use.