Stop lugging your ac adapter back and forth between home and office. Get a second ac adapter for your notebook and keep one in the office and one for home or travel.The 180-watt ac adapter from dell is specially designed to meet the power needs of your dell laptop. Packed with of 180-watt power. This adapter enables you to simultaneously operate your system and charge its battery from electrical power outlets. It comes bundled with 6 ft power cord.