Given someones taken the knobs and handles off some of them, I'd say everything of use has been taken so very little chance of them working. Still, hope springs eternal.
They have been outside for 3 days and are for sale tomorrow night, it must have been wet when the photo was took but it has been fairly good weather. But if they're scrap, then no point worrying about them.
they be a load of junk pity the poor bugger who plugs them in they will go with a rite banngggggg with them been left out in the rain how stupid can they be but then again they are not bothered as long as make a few quid