ATC quality Battery6-Cell 5200mAh Li Ion Brand New fit 42T5264,41U3197,42T5263 Laptop Notebook Replacement Battery, for,IBM ThinkPad R61 7736, ThinkPad R61 7737, ThinkPad R61 7738 ThinkPad R61 7742, ThinkPad R61 7743, ThinkPad R61 7744 Battery Type : Li-ion Voltage : 10.8V Capacity : 5200mAh Weight: 315g, Battery Cells: 6 cells Brand New Replacement Product, Works as Genuine Parts. The Replacement Battery come with Full 1 Year warranty,Batteries are in high grade quality and certified by CE and RoHS