Engineering360: "Video: A modular approach to EV charging infrastructure"

I watched the video and read the article and I still don't know how this works...It seems you're supposed to lift this(looks heavy) into your trunk, and somehow plug it in to your car somehow, but that doesn't seem doable, at least not without adding another plug into the trunk, which also seems expensive and problematic....I don't get it...

Its a battery pack that simply connects to the input plug of the car with a cable. A fancy jump starter that gives limited charge. Drag it along to your car, plug it in, add some charge to the battery and return the charger to the station to recharge. As it says a battery bank for your car, No lifting anything.

Then why does it say "it can be easily stored in trunk or at home"? ...and do they charge by the day, or just for the electric used? ...can you charge it at home? ...and if you sit there in your car waiting for the battery to charge your battery, why not just have a plug-in at the battery dispenser?

You know what, your right! Maybe it comes with a ramp or two sturdy blokes to lift it up for you. I cant see it being light enough for one elderly person to handle.