Replaces OEM # C21N1818-1, 0B200-03280800 Fits: ASUS VIVOBOOK 15 F512DA, 15 F512FA, 15 F512FB, 15 F512FJ, 15 F512FL, 15 F512JA, 15 F512JP, 15 F512UA, 15 R564DA, 15 R564FA, 15 R564JA, A512FA, A512FB, A512FL, A512JA, A512JP, A512UA, A512UF, K512FA, S512DK, S512FA, S512FB, S512FL, S512UA Specs: 7.7V, 4850MAH, 37WHR, 4 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each product has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety