Don't laugh, but when I was in for Tires the guy, in an ICE Jag in front of me did say: "Does it use an alternator to charge"
Just goes to show what the typical IQ of a JLR driver is /hide
But I was good and only bought a bottle of water (well, and some M&Ms ) ... probably should have skipped that stop
...also going by your whinge about 3rd party charging I'd place you as more of a cream tea and scones guy /stay_hidden