[LargoLasskhyfv]

Eons ago I've driven one such forklift through a high rack warehouse for a year. It had 2 batteries, weighing about 4 metric tons each (Lead-Sulfuric acid). They made it about 4 hours (half shift), then had to be exchanged with another forklift at the loading station. Always had to check for levels of sulfuric acid, watch out for oxyhydrogen/electrolytic gas, and whatnot else. But was fun to ride, because up to 35kph on the ground for the whole 12 metric tons, wobbly cabin/platform at 12meters up, and deadly fast fork. So...very niche, I guess?

Another thing similar to milk floats comes to mind from the time the railways used to deliver post and packets. Those things always trundled along the platforms, to where the post/baggage car would be. Sometimes with several small trailers.