Replaces OEM# 00HW002, 00HW003, SB10F46440, SB10F46441 Fits: LENOVO THINKPAD X1 CARBON 3RD GEN, THINKPAD X1 CARBON 3RD GEN 20BS, THINKPAD X1 CARBON 3RD GEN 20BT Specs: 15.2V, 3290MAH, 50WHR, 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