Synergy Digital Tablet Battery, Compatible with Asus 0B200-01520000 Tablet, (Li-Pol, 7.6V, 4900mAh) Ultra High Capacity, Replacement for Asus 0B200-01520000, C21N1421 Battery Specifications: Battery Chemstry: Li-Pol Voltage: 7.6V Capacity: 4900mAh Compatible with: Asus 0B200-01520000, C21N1421 Battery Works for: Asus 0B200-01520000 Tablet and many more