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Consumers seem to disagree with you on the first part. I personally think that current battery tech is fine for EVs (I have an EV with a 260 mile range, and onl

Consumers seem to disagree with you on the first part. I personally think that current battery tech is fine for EVs (I have an EV with a 260 mile range, and only a 77kW max charge rate, and I think it's fine even for 10+ hour road trips), but a segment of the consumer space wants more than that. I personally thought that the more interesting part of the article was where they claimed to be able to add 800 miles of range in 12 minutes. At those kinds of charge rates, my ideal EV would probably have a 300ish mile range that I could charge from 10-80 in <10 minutes (although I believe that part of the way they get those charge rates is with large battery packs, so a smaller pack would probably not charge as fast). Additionally, while the specs for EV sedans are currently fine, batteries are only barely good enough for larger, less efficient vehicles. Maybe the killer app here isn't a sedan that goes 1000 miles, but a truck or SUV that can go 500. The point is, whatever your and my opinions on the adequacy of current EV charging, the market seems to value improved battery specs more highly in the EV space than it does in the phone space (or maybe it doesn't and BYD is making a mistake by keeping their batteries for their cars instead of selling them to phone manufacturers).

ikt 1y ago
don’t know why you’re being downvoted, seems reasonable to me
actsasbuffoon 1y ago
EV batteries degrade more quickly when charged too far above half-way. As a result, your ideal EV might actually have 600 miles of range and you’d just leave it half-charged most of the time.
- MostlyStable 1y ago
  From everything I've heard/read you can pretty safely go to 80-90% of listed state of charge (manufacturers often also include a hidden buffer for exactly this reason). My car, which like I said has a 260 mile range, I only charge to 80% unless I'm going on a long road trip. So for 90%+ of the time, it's never charged more than 80% (and I very rarely discharge it to less than 15%). For most people, a 300 mile range like I describe would be plenty to be able to not need 100% charge except on rare occasions. But even if it's not for you, or for some people, I very specifically said "my ideal EV". A 600 mile range that I almost never use is just extra weight that I'm carrying around and decreasing efficiency, and isn't actually providing much real battery protection. I am absolutely not someone who drives 360 miles a day (which is what you could do if you were doing an 80% to 20% discharge on a 600 mile battery every day. I'm pretty confident that stats suggest that very few people drive that much on a regular basis. The 150 miles I get from the the 80% to 20% range on my current battery is already more than enough.

ikt 1y ago

don’t know why you’re being downvoted, seems reasonable to me

actsasbuffoon 1y ago

EV batteries degrade more quickly when charged too far above half-way. As a result, your ideal EV might actually have 600 miles of range and you’d just leave it half-charged most of the time.

MostlyStable 1y ago
From everything I've heard/read you can pretty safely go to 80-90% of listed state of charge (manufacturers often also include a hidden buffer for exactly this reason). My car, which like I said has a 260 mile range, I only charge to 80% unless I'm going on a long road trip. So for 90%+ of the time, it's never charged more than 80% (and I very rarely discharge it to less than 15%). For most people, a 300 mile range like I describe would be plenty to be able to not need 100% charge except on rare occasions. But even if it's not for you, or for some people, I very specifically said "my ideal EV". A 600 mile range that I almost never use is just extra weight that I'm carrying around and decreasing efficiency, and isn't actually providing much real battery protection. I am absolutely not someone who drives 360 miles a day (which is what you could do if you were doing an 80% to 20% discharge on a 600 mile battery every day. I'm pretty confident that stats suggest that very few people drive that much on a regular basis. The 150 miles I get from the the 80% to 20% range on my current battery is already more than enough.