Lenovo Thinkpad T430 (i5/2.6GHz, HDD 320Gb, RAM 8Gb, Windows 10 Pro, Power adapter) - used, some scratches on the lid, but in good working condition. Power adapter included. 

The battery is included but its capacity is not guaranteed (I tested it by playing youtube via wifi and after 30 min the battery had a little more than 70%, but it, of course depends on location of the router, video, volume/brighteness etc)