Exxact Parts Solutions&reg;New Laptop Battery for ASUS A31-X401 - ASUS ASUS X401 Series ASUS X501 Series 11.1V 5200mAh Battery Type: Li-Polymer; Capacity: 5200mAh; Cells: 6-cell; Voltage: 11.1V Battery built by highest quality materials including grade-A brand-new cellswhich ensures fast charging and low power consumption. Battery meets and exceeds OEM specifications and lasts longer hours. Battery package includes: One brand-new generic replacement battery for ASUS Battery offered in this listing is CE & RoHS certified, so you can shop with a peace of mind