Hipower DC Car Automobile Power Adapter Charger For Acer Aspire 7741-5137, 7741-5209, 7741-5932, 7741-6456, 7741-7870, 7741Z-4433, 7741Z-4450, 7741Z-4475, 7741Z-4485, 9400 Laptop Notebook Computers Input: 11-15V DC (** This is a DC power adpater for use in vehicles. This is NOT an AC wall adapter for use in homes **) Output Volts: 19.00V Output Wattage: up to 65W maximum Output Current: up to 3.42A maximum Connector: Barrel, Center +