new battery can give 300 mi range in just 5 min

[Cujet]

There's an unlimited amount of next gen battery hype.

This is the exact truth. By sandbagging (oversizing a battery) and other methods, absurd claims can be made.

I had a thread here a few years back about 'bogus battery breakthroughs' where I highlighted some of the issues. The thread was shut down for various reasons. But the facts have not changed.

1) Conductors must be huge and heavy to carry high current.
2) Charge "C" rates really have not changed much. 4C peaks now, 6C peaks maybe later, it's rough on them.
3) Special cells that can accept high charge rates exist. They don't last, even when super-cooled. A universal truth.

Consider this: A simple 2170, 5000mAh used in a Model 3 would be zapped with 60A of current for a 5 minute charge. Those are welding current levels of power. Survival life is very limited.

 

[alarmguy]

Im confused (nothing new?)
I am reading these posts and it seems like some are saying this is impossible and bogus.
Am I missing something here or if so, are those aware that BYD is rolling out these 5 minute charge cars later this year.

I doubt BYD is lying about their two models that will have these batteries as well as the chargers.

Maybe some missed the link I provided?

Source - https://www.techradar.com/vehicle-t...of-range-in-just-five-minutes-your-move-tesla


Here are the cars-
https://carnewschina.com/2025/03/15...charging-on-the-han-l-and-tang-l-on-17-march/

..

 

[GrumpyCat]

Where do EV drivers clean their windshields if they never have to stop for gas? Do they buy their own windshield squeegees?

My EV comes with windshield wipers and a tank of windshield cleaning fluid.

 

[GrumpyCat]

The charger would have to take into account the problems that come along with magnetic fields that would be generated.

If DC it would have to ramp up slow at the beginning, and ramp down slow at the end.

If AC, how many phases, what frequency, what voltage, and is it Y or Delta? And don't forget all the safety required for high voltage.

So, you have no EV experience at all.

Both AC and DC charging "ramps up".

The so-called "charger" used for AC is nothing but a smart GFI extension cord which informs the EV of how much current it is allowed to draw then enforces that limit with a circuit breaker if exceeded.

 

[Torrid]

Im confused (nothing new?)
I am reading these posts and it seems like some are saying this is impossible and bogus.
Am I missing something here or if so, are those aware that BYD is rolling out these 5 minute charge cars later this year.

I doubt BYD is lying about their two models that will have these batteries as well as the chargers.

Maybe some missed the link I provided?

View attachment 268961

Source - https://www.techradar.com/vehicle-t...of-range-in-just-five-minutes-your-move-tesla


Here are the cars-
https://carnewschina.com/2025/03/15...charging-on-the-han-l-and-tang-l-on-17-march/

..

I'm sure it will be available unless it's a lie on specs, but I think this is going to massively shorten battery life. Not quite the same thing, but I thought OnePlus had it figured out with phones with Warp 65w charging. It charged so fast that I always charged it 20%-80% while I was getting ready for work. The battery life was down dramatically almost 2 years in when I replaced it. My iPhone only does 30w of charging. I still mostly do 20%-80% charging and for the most part that does happen while I'm getting ready. I never charge overnight because of battery degradation. I'm 2.5 years in on my iPhone 14 Pro Max and it says I'm at 91%. I haven't seen a noticeable drop in battery life yet. That said I was 65w charging every day because it was the included charger. Almost no one will be fast charging daily on a car so this might not translate as well.

Fast charging makes a lot of heat. A great cooling system will help make up for it, but there's got to be a bit of a limitation of jamming power in that fast regularly. I hope it works well. I don't want a Chinese made car though and that's not a slight at China. I really like supporting US companies and I want to see the US thrive by spending as much of my money here as possible for the products I want and need.

 

[GrumpyCat]

Yes, but your use is one specific use for one car at one house.
You are a small minority compared to the population

They used to say that of ICE automobile owners too.

For instance, many people do not have access to plug in a car at a home of any type be at a apartment building condo or house

Oh boo hoo hoo!

Many who live in condos or apartment buildings don't have parking spaces. If you want one it is an extra cost option. Just as having a kitchen, or a swimming pool, or washer/dryer hookups, or air conditioning. Lowly apartment dwellers never had those things until they voted with their pocket books and moving trucks.

Second, I do not know one family in my community of thousands where there is only one vehicle. Just like your own house you only have one electric vehicle versus may be up to three other cars.

The typical family has at least two cars in their driveway. What I’m saying is your situation is clearly unique and so is the weather where you live.

So? I have two Tesla Wall Connectors in my garage. Can run 4 or 5 on one circuit, they are smart enough to share without overloading.

There is no way electric vehicles will ever be fully accepted as a majority until just now if this new battery and system developed in China works out.

Every internet intellectual (36 years old, lives in an overstuffed chair in mother's basement, uses a $4000 gaming laptop to web surf) agrees with you.

We should simply give up and surrender to your genius. Your thinking powers are superior to our real world experience.

There is no way multicar families, multifamily homes, and people who just enjoy driving, will settle for anything less if and only if electric vehicles will be a majority.

There are many many reasons whythat could happen in less than 100 years.
One of those reasons I think about this, 300 million gasoline vehicles on the road in the United States. It will take at least 100 years if that’s even possible to build the electric generation system and grid to support electrically charging up 300 million cars. Heck we’re not even at 5 million right now.

Your brilliance blinds me! We do have about 50% generating capacity surplus at night, the natural time for an EV to charge if only you could surrender the fool notion we need to go to DCFC sites during the day then wait around Just Like A Gas Station. DCFC sites which are the worst possible load one could put on the power grid, and during the daytime during peak demand.

Night charging of EVs is easy money for the power utility, they have the capacity if only they had consumers to pay for what they can produce. The EV matches that need perfectly, providing easy revenue the utility had to do nothing to get, and now has revenue to expand capacity for daytime users as well as for night EV users.

I know you know I am nothing or can electric vehicles but as of right now they’re for specific uses such as your own one electric vehicle along with multiplegasoline vehicles

Be sure to throw away your cordless power tools, cellphone, laptop, tablet, etc, because after being educated by your wisdom I don't think The Grid can charge them all in just one household.

 

[GrumpyCat]

Maybe I’m weird but I only have EVs. The charger reaches either car so I’ve not bothered installing a second. I drive 20k miles a year and occasionally travel, but most charging is at home. My wife is now driving around 8k miles a year. I was honestly surprised sharing a charger was more than enough to meet our needs.

If Tesla, two 3rd generation Wall Connectors can intelligently share one circuit.

Other makes of EVSEs can do the same.

 

[GrumpyCat]

I wouldnt mind 150miles range if they could put an efficient 50hp motor in there somewhere as a range extender.

The 150 would be fine for 95% weekly tasks.. the range extender for when you have a longer trip with no charging infrastructure or dont want a 20-30min charging pitstop every 2-3 hours.

But wait those wouldnt be an EV with incentives??!?! cant do everything that makes sense.

BMW i3 REx tried just that. Failed.

 

[GrumpyCat]

That's what battery swap is about.

Every attempt at EV battery swap has failed without massive government subsidies.

How much rent must one charge on a $10,000 item? Too much say consumers who could simply plug in at home at night for 1/20th the cost/mile.

 

[GrumpyCat]

I always though there should be a way to have a hybrid and an EV link up for long trip purposes. This way people don't need to drive a big special occasion vehicle daily and still can go long distance without charging.

My sister says she stops twice, each for 25 minutes or less on a 700 mile day in her Tesla Model S when she comes to see me. That is terribly inconvenient!

 

[JimPghPA]

So, you have no EV experience at all.

Both AC and DC charging "ramps up".

The so-called "charger" used for AC is nothing but a smart GFI extension cord which informs the EV of how much current it is allowed to draw then enforces that limit with a circuit breaker if exceeded.

A Mega-Watt ( 1,000 Kilo-Watts ) is a whole new range of power being transfered compared to what is being commonly used to charge with now days.

Step things up that large of an increment and a whole new relm of problems can happen.

Imagine 1323 HP worth of energy being transfered for 5 minutes while people are all around everything. It's a HUGE step up from the approximately 18 HP worth of energy now used to charge with.

 

[GrumpyCat]

Tesla, and some others, use a structural battery.

They do now. If the battery is not structure then one has to build structure to hold the car together. Added weight.

The original Model S was designed for battery swap. Tesla built a robotic swap station. 90 seconds. Demonstrated at a number of car shows. Videos on YouTube. When placed into service in EV friendly California the service flopped. Consumers didn't want to pay that much for something they could get at home much cheaper, even at exorbitant CA electric utility prices.

Charging is a better solution. Come home and plugs in. Nuthin' too it.

Yes. At night when "The Grid" has plenty of surplus capacity.

 

[GrumpyCat]

OK, so basically put the charge port on the rear of the vehicle, make a trailer that's a generator + DC fast charger in one, and have the car plugged into it while towing the trailer. Make it so the car can drive while charging/accepting power from that port (unlike vehicles now where they can only be put into gear while unplugged).

You guys keep wanting The Gas Station Model to apply to EVs!

You want EVs to be able to drive off when still connected to the charging umbilical same as an ICE can drive away from a gas station with the nozzle still attached.

 

[GrumpyCat]

Fast charging makes a lot of heat. A great cooling system will help make up for it, but there's got to be a bit of a limitation of jamming power in that fast regularly. I hope it works well. I don't want a Chinese made car though and that's not a slight at China. I really like supporting US companies and I want to see the US thrive by spending as much of my money here as possible for the products I want and need.

They want to hit a ~1000 pound battery with a megawatt? "Gee! That sounds safe to me!"

Hey, how about the perfect safety record of Chinese electric bikes? Yup, these are the guys I would trust with a megawatt charger!

All to solve a problem which doesn't exist but in the minds of Internet Intellectuals. The same geniuses who 15 years ago didn't believe we needed DC charging and refused to accept Tesla's NACS connector as the J1772 standard. "Too few need DC charging, and it is too dangerous to put AC and DC on the same pins."

I had free Tesla Supercharging for 10 years. Almost never used it. When I replaced that car I took a $3500 "inventory" discount rather than transfer the Supercharging to the new car. In 15 months I have spent $7, once, at a Supercharger.

 

[GrumpyCat]

A Mega-Watt ( 1,000 Kilo-Watts ) is a whole new range of power being transfered compared to what is being commonly used to charge with now days.

Step things up that large of an increment and a whole new relm of problems can happen.

Imagine 1323 HP worth of energy being transfered for 5 minutes while people are all around everything. It's a HUGE step up from the approximately 18 HP worth of energy now used to charge with.

Gee, I didn't know China was installing megawatt chargers in households now. Learn something new every day!

Guess Tesla was lying about the V3 Supercharger at which I spent being 250kW. Or the times I saw 118kW indicated as incoming on V2 Superchargers.

 

[alarmguy]

I'm sure it will be available unless it's a lie on specs, but I think this is going to massively shorten battery life. Not quite the same thing, but I thought OnePlus had it figured out with phones with Warp 65w charging. It charged so fast that I always charged it 20%-80% while I was getting ready for work. The battery life was down dramatically almost 2 years in when I replaced it. My iPhone only does 30w of charging. I still mostly do 20%-80% charging and for the most part that does happen while I'm getting ready. I never charge overnight because of battery degradation. I'm 2.5 years in on my iPhone 14 Pro Max and it says I'm at 91%. I haven't seen a noticeable drop in battery life yet. That said I was 65w charging every day because it was the included charger. Almost no one will be fast charging daily on a car so this might not translate as well.

Fast charging makes a lot of heat. A great cooling system will help make up for it, but there's got to be a bit of a limitation of jamming power in that fast regularly. I hope it works well. I don't want a Chinese made car though and that's not a slight at China. I really like supporting US companies and I want to see the US thrive by spending as much of my money here as possible for the products I want and need.

Agree, my wife uses mag tech charging I used a 12 watt apple charger with cable on my iPhone 13. We both have 89% battery life.
I like slow charge though and I over those 3 years make much more use of my phone being I'm retired and she is working.

I traded the 13 two weeks ago for a 15plus I still use a cable to charge, though in my wife's car I use the built in mag tech .

Time will tell with the China thing, we will see!

 

[Torrid]

Agree, my wife uses mag tech charging I used a 12 watt apple charger with cable on my iPhone 13. We both have 89% battery life.
I like slow charge though and I over those 3 years make much more use of my phone being I'm retired and she is working.

I traded the 13 two weeks ago for a 15plus I still use a cable to charge, though in my wife's car I use the built in mag tech .

Time will tell with the China thing, we will see!

I do use MagSafe a lot. I have a Belkin MagSafe pedestal charger at home and I use the built wireless charger in my cars, but use a cable when in hotels with the 20w Apple charger. I know MagSafe does create more heat, but the 20%-80% charging habits with both options seems to have spared the battery degradation more than I expected. I think this is the longest I've kept a phone so far and that was the initial reason why I got the Pro Max. I wanted the Pro for the better cameras, but the benefit of the Max was the bigger screen and battery. I'm impressed how well it has held up with the amount of wireless charging I do.

That said I'd love to have that fast of EV charging in a pinch on a trip. That's not something I do daily so it would be a huge benefit when I need to make a stop for a deeper public charge. I should have another business trip next month too. So far I've found Tesla Supercharging to be a great experience, but I wouldn't be upset to have an even faster option as technology improves.

 

[alarmguy]

I do use MagSafe a lot. I have a Belkin MagSafe pedestal charger at home and I use the built wireless charger in my cars, but use a cable when in hotels with the 20w Apple charger. I know MagSafe does create more heat, but the 20%-80% charging habits with both options seems to have spared the battery degradation more than I expected. I think this is the longest I've kept a phone so far and that was the initial reason why I got the Pro Max. I wanted the Pro for the better cameras, but the benefit of the Max was the bigger screen and battery. I'm impressed how well it has held up with the amount of wireless charging I do.

That said I'd love to have that fast of EV charging in a pinch on a trip. That's not something I do daily so it would be a huge benefit when I need to make a stop for a deeper public charge. I should have another business trip next month too. So far I've found Tesla Supercharging to be a great experience, but I wouldn't be upset to have an even faster option as technology improves.

Yes, my wife uses the Belkin pedestal phone and watch charger. I was surprised that her battery was at 89% the same as mine. But acknowledge between us that I use my phone far more often (understatement) and will also at times, even though fully charged every morning charge during the day while using it as a GPS. So I do think for sure, a slower hardwire charge is more easy on the battery, at the same time the hit using MagSafe isnt horrible as best we can tell in our household. The wild card really is though, my phone gets far more use and the battery lasted the same as her lightly used. My wife always compares our devices remaining battery life like a competition. *LOL* on the phones and watches.

I have the iPhone 15 plus now got it 2 weeks ago. Since its USB C I am using my 20 watt Apple Watch charger cube but now that I think about it I might go back to using a 10 watt apple cube, once I have a long enough cable from USB A to USB C (previous post referred to it as 12watt was incorrect as was mag tech *LOL*)
That 10 watt is what I used on the iPhone 13 while my wife uses the Belkin Pedestal. She loves the pedestal. I bought it for her years back. Im maybe a bit to anal to use it. Plus she has to use a MagSafe case with it and I like the look of a clear soft case on the back.

I do this for fun but I think pretty good for 3 years of pretty hard use to have traded it in with 89% remaining. (apple gave me $250 trade in on the iPhone 13, think its a special until April 3rd or around that time)

One thing for sure, the Belkin stand is beautiful. Sometimes she has all three of her devices on it.
Iphone 13, Apple Watch and 2nd gen Air Pods Pro charging all at the same time before bed.

 

[zzyzzx]

it needs a 1000 kw charger and who knows what else

A 100A service, most likely.

 

[PandaBear]

OK, so basically put the charge port on the rear of the vehicle, make a trailer that's a generator + DC fast charger in one, and have the car plugged into it while towing the trailer. Make it so the car can drive while charging/accepting power from that port (unlike vehicles now where they can only be put into gear while unplugged).

In theory, that could work... If you have the option to rent the trailer for road trips and pick up/drop it off at a bunch of locations around the country. BUT the cost to make and maintain these generators, especially if you are knowledgeable of how rental stuff is treated/abused, would make it fairly expensive. And, it would not work with any vehicles currently on the road as they are not designed for that type of power flow while driving... and most of them have the charge ports in the wrong place for this to work even if it can be retrofitted/software updated.

Not exactly. I am thinking more like 2 regular cars with one powering another via the hybrid powertrain. Like a Prius powering a Chevy Bolt. Both would be owned privately by the same family, and both can seat people and have trunk space. This is better than renting generating trailer IMO, because nothing sits around, and they will be used most of the time during non travel season.

The biggest problem with road trip season is the extra capacity of anything we normally don't need. You either need a lot of extra power plant, extra refinery, extra fuel storage facility, extra tanker truck, extra powerline, extra charging port, extra batteries, extra swap stations, extra trailer generator, etc etc.

Find a way to combine what you normally use efficiently, and you have a good solution.