I had a curious incident the other day: I came home from a 7-day trip to find my XC40 Recharge completely without power. I couldn't even use the battery-powered keys to unlock the car, and every feature of the car was not working. I had been monitoring the status of the charge using the app (as much as possible, since the app is a bit glitchy and won't always report the charge to me). Just a couple days before this incident, I was at 77 percent charge (down from 87 percent when I left). At most I've seen the car lose 5 percent of its charge overnight in the past, so I find it hard to believe that it lost all of its charge in the intervening couple of days. I'd be curious about whether people have any insight into what might have happened. Could it be the 12-volt battery went dead? Maybe, but when the tow truck came we powered the 12-volt battery and the electronics came on (with a lot of errors and glitches) and the readout said the main battery was at zero. I'm at a loss and find it hard to believe that the car could lose that much battery over such a short amount of time just sitting in the driveway.