Replaces OEM # L20C3P72, L20D3P72, L20M3P72, SB10W51948, SB10W51959, SB10W51960, SB11M89875, 5B10W51824, 5B10W51825, 5B10W51858, 5B10W51859, 5B11M90074, 5B11M90075 Fits: LENOVO THINKPAD X13 GEN 2, THINKPAD X13 GEN 2 20WK, THINKPAD X13 GEN 2 20WL, THINKPAD X13 GEN 2 20XH, THINKPAD X13 GEN 2 20XJ, THINKPAD X13 GEN 3, THINKPAD X13 GEN 3 21CM, THINKPAD X13 GEN 3 21CN, THINKPAD X13 GEN 3 21BN, THINKPAD X13 GEN 3 21BQ Specs: 11.52V, 3564MAH, 41WHR, 3 CELL Brand New GreenTech replacement battery - 6 Month Replacement Warranty Each products has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety