Began today about noonish.
I plowed a path from the garage door down to the sidewalk, turned, and continued to the corner.
Then I turned around and went the other way.
This ran the batteries down to "One Bar" on the indicator so I stopped, put them in the charger, and took a break for a couple of hours.
They only charged to two of the three lights on the "gas gauge", so I dumped them back in, and went at the driveway some more.
This ran them down to NO lights, and it quit running.
I'll get going on this again tomorrow to finish the driveway and widen the sidewalk path.
It's pretty, though.....