Replaces OEM # 01AV478, 01AV479, 01AV480, L17L3P71, L17M3P71, L17M3P72, SB10K97620, SB10K97621, SB10K97622 Fits: LENOVO THINKPAD T480S, THINKPAD T480S 20L7, THINKPAD T480S 20L8 Specs: 11.52V, 57WHR, 4920MAH, 3 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