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submitted 1 month ago by SeaJ@lemm.ee to c/technology@lemmy.world
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[-] gumnut@aussie.zone 23 points 1 month ago

It’s such a dumb metric for batteries. I wish people would stop using it.

[-] KairuByte@lemmy.dbzer0.com 24 points 1 month ago

Eh, it’s really not that dumb assuming there’s an average electric discharge for electric vehicles. Most laypeople don’t understand kWh beyond “bigger number better”.

[-] fruitycoder@sh.itjust.works 11 points 1 month ago

I mean its a more a metric for the over vehicle. It can move its self that distance on a charge.

The battery would kWh but that alone is insufficient for evaluating the vehicle

[-] nilloc@discuss.tchncs.de 7 points 1 month ago* (last edited 1 month ago)

kWh/Kg is really all that matters, maybe max charge/discharge rates too.

But they aren’t clickbatey enough for commercial news.

[-] fruitycoder@sh.itjust.works 1 points 1 month ago

But kWh/kg doesn't account for additional energy sinks or drive train efficiency

[-] nilloc@discuss.tchncs.de 2 points 1 month ago

Sure, for a specific car, but Samsung isn’t making cars, just a battery that could go in a number of different vehicles. So all we’re really able to compare is batteries, not full vehicle efficiency.

If they’re intending to suggest this new battery, when fitted in an existing EV (say a Model Y) would result in a 600 mile range, then it’s interesting, but all other things (drivetrain, drag, vehicle weight) would have to remain constant.

[-] fruitycoder@sh.itjust.works 1 points 1 month ago

Oh dang I'm the fool. You're 100% correct. I assumed it was a full vehicle system with a battery.

[-] Hugh_Jeggs@lemm.ee 9 points 1 month ago
[-] PoolloverNathan@programming.dev 16 points 1 month ago

Metric = a measurement, not the metric system.

[-] Hugh_Jeggs@lemm.ee 6 points 1 month ago

@programming.dev

Makes sense

[-] conciselyverbose@sh.itjust.works 8 points 1 month ago

It's what people care about.

An EV that can only travel 300 miles on a charge is a complete nonstarter for me. It's simply not enough for trips I take with regularity.

[-] AA5B@lemmy.world 9 points 1 month ago

But it it’s stupid because it doesn’t really relate to anything. Different cars have different ranges with different sized batteries and different efficiencies, at different weights and different volumes, so I have no idea what it means.

Wouldn’t it be both more straightforward and more meaningful to phrase it like: x% more power for the same weight as current LfPO used in Tesla standard range

Most importantly, batteries will always be expensive, so most manufacturers will prefer fewer/smaller for a cheaper and lighter car of similar range. Aside from trucks, I don’t see why we’d ever see many 600mile range EVs, especially if we get truly fast charging

[-] conciselyverbose@sh.itjust.works 1 points 1 month ago* (last edited 1 month ago)

But people don't care about that. They care "how far can x car go with it".

I will never even consider buying an EV that can't go a minimum of 500 miles on a charge. I'm not willing to have short weekend trips held hostage by the availability of charging stations. 500 miles is still not a long round trip.

[-] AA5B@lemmy.world 8 points 1 month ago

But most ICE vehicles won’t go nearly that far on a tank of gas, they seem to most commonly go a bit over 300. Why should EVs be any different? Many of them already claim a similar range.

The difference is the ubiquity of gas stations. That infrastructure was built out over a century, and we need to do similar with chargers but ten times as fast

[-] Socsa@sh.itjust.works 9 points 1 month ago* (last edited 1 month ago)

It's really weird how emotional some people get about EV range and their completely imagined charging issues. On a 500 mile trip an EV adds maybe 20 minutes of charging, and that's if you are really trying to maxmin gas stops in an ICE.

Meanwhile never going to the gas station during the week because I charge at home saves way more time.

[-] conciselyverbose@sh.itjust.works 2 points 1 month ago

My car is a hybrid that goes 550 on gas without being plugged in. I'm not willing to go below that.

The ubiquity of gas stations is exactly the point. Less populated areas aren't going to add charging stations, and even if they did, fast charging still sucks.

[-] Socsa@sh.itjust.works 7 points 1 month ago

As someone who does weekend trips in a 300 mile EV all the time, this is hilarious. You do you though.

[-] LifeInMultipleChoice@lemmy.world 6 points 1 month ago* (last edited 1 month ago)

How about the 2024 Ford Escape PHEV. 37 mile range on electric, which will cover most of dialy driving, and then it switches to gas. Should work out that you can pay 1/3 cost for fuel most percent of your driving, and not have to worry about long range trips. Base price is like 41k, meaning a used vehicle would drop quick.

Edit: apparently the 2025 now starts at 38k. So price came down didn't find range.

[-] AA5B@lemmy.world 5 points 1 month ago

I think the complaint is most people don’t bother using the ‘P’ so it turns into an ICE with extra steps

[-] SSJMarx@lemm.ee 3 points 1 month ago

I'm still rocking my second generation Chevy Volt! 50ish miles on a full charge (if you live someplace flat) then 30-40 MPG after that, and it's a reasonably sized hatchback and not an annoyingly large crossover or SUV. I would upgrade to a Bolt but god that car is ugly.

[-] conciselyverbose@sh.itjust.works 1 points 1 month ago

I have an older fusion energi and don't plug it in because charging every day is a hassle.

I'm not anti-anything though. Clean energy is good, efficiency is good, the luggage space wasted isn't awesome but whatever. I'm just explaining why I care about range. That's not a long weekend camping trip and the infrastructure for pure battery in the places I like to be don't make low range viable.

[-] Thadrax@lemmy.world 5 points 1 month ago

How so, I'm curious? Do you drive into no mans land hundreds of miles away from civilization or are you a robot that never needs to take a break?

[-] conciselyverbose@sh.itjust.works 3 points 1 month ago

That's a 3 hour drive into the mountains, and running out before I get back. It's not a long trip.

But, yes, stopping on a road trip is also a massive issue, and turning a 5 minute stop once a day into 20 3 times a day (on the limited routes where there are charging options) on an actual long trip would also be a dealbreaker by itself.

[-] Thadrax@lemmy.world 4 points 1 month ago

I don't know how remote your mountains are, here there would likely be a charge point less than 50km away but I don't know where you drive. I give you that.

Your second point though, you might want to reconsider your driving habits. Random google result for breaks when driving: "If driving long distances, you should stop for at least 15 minutes every two hours. Stop often to rest for at least 45 minutes every 4.5 hours of driving to avoid getting tired and stay alert. Plan to stop for a break every 100 miles on your long road trip so that you can relax. Try to only drive for 9 hours a day."

[-] conciselyverbose@sh.itjust.works 1 points 1 month ago

If there was a charge point within 50 miles I wouldn't want to be there.

A five minute stop once for gas is already more than too much of a waste of time. I absolutely will not throw away hours a day for no reason.

[-] Saff@lemmy.ml 3 points 1 month ago

Even with a 10-15 mins recharge? A couple of times a year I do make a 500 mile journey and if there wasn’t a sea in the way I would happily do it all in one sitting. But as a teeny tiny compromise I wouldn’t mind stopping to charge once or twice along the way! It would add about 20 mins to the journey sure, but seems like it’s worth the benefits to me.

[-] Simulation6@sopuli.xyz 1 points 1 month ago

I don’t think you would get to the charger in 20 minutes. Assume there will be line.

[-] Saff@lemmy.ml 1 points 1 month ago

I’d think that too, but I had my first ever ride in a Tesla recently and the way the supercharger network is handled seems pretty clean. Far from a Tesla fan boy but way the car books you a slot and then charges you a fortune if you overstay meant that we had no problem getting a space. Once charging becomes the norm it will be fine.

[-] conciselyverbose@sh.itjust.works 1 points 1 month ago

I don't go places where recharging is an option.

The long trips are ones where I'd be turning one 5 minute stop into at least an hour of stops per day. That's not a small compromise any more.

[-] sushibowl@feddit.nl 3 points 1 month ago

You drive a full day with only one five minute stop? I think taking regular breaks is recommended when driving for long periods.

[-] conciselyverbose@sh.itjust.works 1 points 1 month ago

Absolutely. A stop is lighting time on fire. It turns a tedious experience into a completely unbearable one.

[-] Saff@lemmy.ml 1 points 1 month ago

Yet! It will be an option everywhere eventually…

[-] Rinox@feddit.it 4 points 1 month ago

It's not stupid if it takes hours instead of minutes to charge up. If this tech really delivers, then I'll be more than ok with a 200 miles battery that charges in 3 minutes.

[-] I_Clean_Here@lemmy.world 4 points 1 month ago

Want a stupid metric? How about miles per gallon

this post was submitted on 26 Jul 2024
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