Extended 9-cell HK421 Replacement Laptop Battery for Dell Inspiron 1501, Dell Inspiron 6400, Dell Inspiron E1505, Dell Latitude 131L and Dell Vostro 1000.

This 9-Cell Extended Replacement Battery for Dell Dell Inspiron 1501, Dell Inspiron 6400, Dell Inspiron E1505, Dell Latitude 131L and Dell Vostro 1000 is rated at 11.1V, 73Whr capacity. It will meet or exceed your original Dell HK421 specifications. It is guaranteed to be 100% compatible with your Dell computer system. This 9-Cell Extended battery has at least 40% more run time than the 6-cell original equivalent. These are quality made laptop batteries manufactured with premium Lithium Ion cells. They feature internal circuit boards with smart chips that allow the battery to communicate with the laptop to monitor battery performance, output voltage and temperature for ultimate performance and safety.