Model: AP18C4K Color:Black Voltage: 11.4V Capacity: 48Wh/4200mAh Replacement Part Number for: AP18C4K Compatible with Machines Model: Acer Aspire 3 A315-42 A315-54 Aspire 5 A514-52 A515-43 A515-52K A515-54 Swift S40-51 SF314-41 SF314-57 Series Laptop The package includes: 1X AP18C4K battery, instruction manual. Before purchasing, please open the back cover of the laptop to confirm the battery model and capacity