batteries for IBM Li-ion Cell Type: Li-ion Voltage:10.8V Capacity:4400mah Weight: 339.1g 141.50 ... 22.00 mm Brand New Replacement Laptop Battery for IBM 10.8V 4400MAH SpecificationCell Type: Li-ion Voltage: 10.8VCapacity: 4400mahWeight: 339.1g141.50 ... "02K6739,02K6740,02K6741,02K6743,02K6776,02K6778,02K6779,08K8027,"Replacement for IBM T, T20, T21, ThinkPad T22, T23 Series;