Type: Li-ionVoltage: 10.8 VCapacity: 3600mAhWeight: 296.3 gDimension: 141.50x84.80x22.00 mmColor : BlackMade with Panasonic CellsCompatible with IBM ThinkPad T20ThinkPad T21ThinkPad T22ThinkPad T23ThinkPad T Series
Type: Li-ionVoltage: 10.8 VCapacity: 4000mAhWeight: 293 gDimension: 208.80x50.84x19.50 mmColor: BlackMade with Panasonic CellsCompatible with IBM Not applicable ThinkPad X30, X31ThinkPad X20ThinkPad X
Type: Li-ionVoltage: 10.8 VCapacity: 4400mAhWeight: 328 gDimension: 155.84x83.20x21.00 mmColor: BlackMade with Toshiba 18650 CellsCompatible with IBM ThinkPad R40e Series
Type: Li-ionVoltage: 14.4 VCapacity: 4000mAhWeight: 386 gDimension: 152.81x85.06x27.23 mmColor: BlackMade with Panasonic CellsCompatible with IBM ThinkPad R32 SeriesThinkPad R40 Series