The smaller electric ones are usually referred to as snow shovels and only work well in the light stuff we just got. Once it melts/packs down the smaller electric ones don't have
enough power to really move the snow to where you want it to go. I
sell these at one of my jobs and they work for the small walkways but not for a big driveway and Big Al is right, they are corded, and as for someone who drives over their electric lawnmower extension more often that I'd like, keeping track of that in the snow would be a pain, unless you had a cord spotter.