A regular car can do it.
But Jane’s car was dead too, from the time we knocked the trickle charger off the ledge. It gets better.

Round one.
Triple-A comes out, hooks up, says Jane’s battery is iffy, but maybe just needs a charge. We get it going.
We drag out the Prius manual and find no, do not open the back battery pack, which is a monstrous lot of volts. Go to the hood, take the black plastic cover off the terminal which itself has a red plus cap on it, rectangular. OK.
We jump it, no problem. Guy thinks it’s charged.

Round two.
Jane has a doc’s checkup (routine) for the morning, so I go out to double check.
Both cars, dead as mackerels on a sunny beach.

I call AAA again, (that’s the American Automobile Association) and out comes the same guy who’d been called to a neighboring town and took most of an hour getting to us…
Well, we pull Jane’s battery, and funny thing, though it had been sold to about in 2012, the sticker on it says 2009. This is not amusing. We are going to have a conversation with AAA.
So that gets replaced. And we can’t complete the sale because Jane has to find her new license plates. Which she does.
Then we jump the Prius again, and it takes.
SO we end up…