LB1 High Performance &reg; Pro Series New Laptop/Notebook Battery for IBM Thinkpad T20/T21/T22/T23 02K6620 02K6621 02K6626 02K6627 02K6644 02K6649 02K7025 02K7026 02K7028 02K7032 2647 LBCIB18 Battery Type : Lithium-Ion - Capacity : 47520 mW-h - Voltage: 10.8V This Product has 12 Months Replacement Warranty 100% OEM compatible Package Includes : 1 pcs laptop battery