Replaces OEM # 5B11A13107, 5B11A13108, 5B11A14635, L20C3P71, L20L3P71, L20M3P71, SB11A13105, SB11A13106, SB11A14634 Fits: LENOVO THINKPAD X13 YOGA GEN 2, X13 YOGA GEN 2 20W8, X13 YOGA GEN 2 20W9, X13 YOGA GEN 3, X13 YOGA GEN 3 21AW, X13 YOGA GEN 3 21AX, P16 GEN 1, P16 GEN 1 21D7 Specs: 11.58V, 52.9WH, 4570MAH, 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