Please check compatibility with your laptop carefully as laptop models do vary.Ensure you have the correct Tip Size, Output Voltage and Amp Rating from your previous charger.The AC power adapter enables you to operate your Toshiba notebook or charge the battery from electrical power outlets.If you are running your computer on AC power with a battery installed, the adapter charges the battery ( if needed ) and maintains its charge.Tip Size:5.5m X 2.5mOutput: 19V 6.32AUK Three-Pin Plug Power CordCompatibility:LX830-10F, LX830-10U, LX830-11D, LX830-11N, LX830-12M, LX830-12W, LX830-130 ,LX830-137X70, PA3290U-3ACA, PA3290E-1ACA, PA3290E-2ACA, PA3381E-1ACA, PA3717E-1ACA, PA3717U-1ACA, ADP-120ZB, Along with the Acer models, this power supply is also compatible with Advent Toshiba Dell Asus laptops with the same power requirements and tip size.