Haha. Reminds me of how volt-amperes are technically the same unit as watts, but if you see VA in an electrical specification you know it means a different thing than it would if you saw W.

But not a very relevant for batteries, unless talking about discharge only once a year.

Grid batteries are discharged on average 80% per day, if not more. EV batteries... well, probably about 5%-10% per day at most.