IBM Thinkpad T20 T21 T22 T23 High capacity - Replacement Laptop Battery FOR NOTEBOOK BATTERIES: 02K6620 02K6621 02K6649 02K7025 02K7026 02K7028 08K8026 FRU 02K6626 FRU 02k6627 FRU 02K7030 FRU 02K7032 LB0033 CS-IBT20 FOR Portable computer / Laptop ThinkPad T20 ThinkPad T21 ThinkPad T22 ThinkPad T23 Type: Li-on Voltage: 10.8V Battery Capacity: 4400mAh Colour: BLACK Dimension: 139.40 x 84.40 x 22.20 mm