SPECIFICATION: Model Name: SG03XL Rechargeable battery; Battery Type: Li-Polymer; Voltage: 11.55V; Capacity: 41.5Wh; Cells: 3-cell; Color: Black; Size about 7x4x0.25in(LxWxH); Weight about 8OZ/0.5lb; Condition: New; Grade A cells ensure fast charges and low power consumption. REPLACE PART: SG03XL replacement battery fit SG03XL 849048-421 849049-421 849314-850 849315-850 HSTNN-LB7E HSTNN-LB7F SG03041XL SG03061XL SGO3XL TPN-I126.