Product Code: LB146
Lithium Ion (Li-Ion) Voltage 10.8V Nominal Capacity 4400mAh Diameter/Width 45.7mm Height 20mm Length/Breadth/Depth 208.1mm Weight 315g Thinkpad X30/X31 Battery pack 08K8036 Replacement battery for IBM thinkpad X30 and X31 notebook.Also replaces the following part numbers 02K7039, 02K7040, 08K8035, 08K8036, 08K8039, 08K8040, 08K8045, 08K8048And many others. This battery is a fully compatible alternatve to the original branded product ded product