I wouldn’t want to have a dead car in the morning if the power went out and it’s trying to power the house.

I’d assume you set it up in a way where you have to actively switch the direction to avoid this - would be a pretty big oversight if they haven’t thought of that before bringing these things to market

I think we would need like 12 Powerwalls to power our house during the summer for 1 day. Air conditioning sucks the power up.

I guess that part is going to depend hugely on location - I’m in New England and have whole home AC but I don’t think I get above 35kWh/day in peak summer. Seems like the Lightning would be a pretty ideal backup solution in my case; extended range battery holds 131kWh, so theoretically I could run off that for almost 4 days if it could supply enough current to keep everything running.

Someone I used to work with had a Lexus and it sounded pretty similar to what you described for Mercedes. First time she called to schedule annual maintenance they offered her a spot on a day she couldn’t take off of work and they were like “that’s fine, we’ll pick it up the night before and drop off a loaner - call us when you’re home from work and we’ll come switch them back”

Although I guess that kind of support is less relevant with an EV because there’s much less scheduled maintenance so you only really need to go back if something legit breaks.

Totally agree with this.

I’ve said similar before that real world range in the 250-300 mile ballpark is plenty for me because that’s about the maximum distance I can comfortably drive without stopping anyway. Stopping to plug my car in for the 15 minutes I’d already take to stretch my legs, buy a soda, use the bathroom etc doesn’t add any time to my overall journey.

A battery that can get me more than 250-300 miles on a single charge doesn’t add as much value to me as one that can replenish that 250-300 miles in 15-20 minutes at a rest stop I’d have pulled into on the route I was driving anyway.

Hyundai claims the Ioniq can do 10-80% in 18 minutes at a charger that supports fast enough speeds, so if we can get that tech into every EV and build out the charging network enough that I’m guaranteed to have a charger that can hit that rate where I need it then I’ll be pretty much set as far as battery/range questions are concerned.

I’m not sure if I missed it but I also don’t see how they get to how they measure a charging hour. If they are going from 10% to 80% and many vehicles are doing that in far less time, are they just using the average charging speed in miles given from 10% to 80% and multiplying that to get whatever an hour is?

This is why miles per charging hour isn’t a particularly useful metric, since the rate of charge isn’t consistent across a full battery. If you charge from 10-80, drain it and charge 10-80 again and keep doing that until you have an hour of total charge time you’ll get a different number than if you did 50-80 or 10-40 or whatever else.

I think the Out of Spec 10% charge test is the way to go with testing this kind of thing. Start at 10%, charge for 15 minutes and see how many miles you can go before you’re back down to 10%. Seems like a more representative example of how people actually use fast charging in real world scenarios on road trips etc.