BE&middot;SELL&reg; A31-U80 A32-U80 Laptop Battery for Asus U20 U50 Series U20F U20G U50A U50V U50F-RBBAG05 U50A-RBBML05 Notebook PCs Battery Type:9 Cells Li-ion Capacity:11.1V Voltage:7800mAh Using highest quality materials Meets and exceeds OEM specifications This product is CE & RoHS certified 12 Months Warranty!!!