Specifications: Item No: Aspire 4310 Chemistry: Li-ion Voltage: 11.1 Cell: 6 cells Compatible Models: Acer Aspire 2930, 2930G, 2930Z Aspire 4230, 4310, 4315, 4330, 4520, 4520G, 4530 Acer Aspire 2930 Series Aspire 2930, Aspire 2930-582G25Mn, Aspire 2930-593G25Mn, Aspire 2930-733G25Mn, Aspire 2930-734G32Mn, Aspire 2930-844G32Mn, Aspire 2930Z, Aspire 2930Z-322G25Mn, Aspire 2930Z-343G16Mn Acer Aspire 4310 Series Aspire 4315, Aspire 4315-2904 Acer Aspire 4520 Series Aspire 4520, Aspire 4520-5141, Aspire 4520G Acer Aspire 4530 Series Aspire 4530, Aspire 4530-5267, Aspire 4530-5350, Aspire 4530-5627, Aspire 4530-5889, Aspire 4530-6823 Please carefully check your battery's Compatible Model & battery picture to ensure compatibility with your Laptop. What's in the box 1 X Astrum Replacement Laptop Battery for Acer Aspire 4310, 5536, 5542 Series 6