Comment Re:Let's eat Grandma, shoots, and leaves. (Score 1) 110
it isn't great but it is also consistent with how ICE vehicles are advertised.
Sorry, let me clarify what I was trying to say there.
Advertising battery capacity or gas tank capacity in miles is an entirely reasonable metric for a car, because a car is the complete package. You'll have some variation depending on how fast you drive, how much you use regenerative braking, how much you have to use the heater, headwinds versus tailwinds, hills, whether you're towing (where applicable), etc., but there are standards for how to calculate MPG in a reproducible way, and as long as everyone follows those standards, you can use the MPG numbers to compare one car against another and have some confidence that the more efficient car will be more efficient for you.
And because the tank and/or battery capacity is also a known quantity, you can multiply the number of gallons times the EPA MPG rating (or equivalent numbers from your choice of country) and get a number of miles that you can also use to compare the expected range of two vehicles. And while you might get more or less range than the rated number, if one car has a higher stated range, chances are it will have a higher actual range for you (unless the numbers are very close).
Range in miles is an entirely unreasonable metric for a battery, because a battery is not a complete package, and a battery in one vehicle could last an order of magnitude longer than the same battery in a different vehicle (e.g. Prius versus Tesla semi). Without normalizing the range numbers to a specific vehicle, comparing two battery packs using miles as a metric tells you approximately nothing other than that the stated numbers are different numbers. It's a nonsensical comparison.
And even if you do normalize it to a specific car, it would be an arbitrary normalization that doesn't reflect the real world, making the numbers far less useful than just giving kWh or gallons, which everyone who owns an EV or an ICE car can pretty much instantly understand relative to their own vehicles' capabilities.