> 99 WHr. Fast charging.

> ability to fast charge in minute

Even with a bulky 200W charger you'll need at least half an hour to charge a 99Wh battery.

Fair enough. Charging for 1 hour and then being able to use the laptop for a couple of days still would be amazing.

We really need an EV-like fast charger standard for electronics.

I want to dump 1000W in to charge the battery as fast as possible. Lose the heat through boiling water or something I don't care.

That's not how that works.

https://www.corrosionpedia.com/definition/395/diffusion-limi...

Which is why most research in batteries has focused on improved high porosity anodes to solve exactly that problem.[1]

For an EV the power use would be excessive, but 1000W into a phone that can get you to 80% capacity in that time is more then enough.

[1] https://www.theguardian.com/environment/2021/jan/19/electric...

> We really need an EV-like fast charger standard for electronics.

We already have it, the fastest charging phones charge their batteries faster than the fastest charging EVs.

Battery charge and discharge rate generally scales linearly with capacity, given the same battery technology twice as much battery should generally be able to handle twice as much energy in either direction. For the sale of comparison we divide the charge rate by the capacity to get a "C-Rate" where 1C is defined as the rate that would fully drain or charge the battery in one hour. For an EV with an 80kWh battery pack 80kW would be 1C, 160kW 2C, etc.

The fastest charging EVs on the market right now all peak in the 2.5-3C range, with the Hyundai-Kia e-GMP cars taking the lead even with a lower overall peak wattage due to their smaller batteries. The Lucid Air, Tesla Plaid, and Porsche/Audi siblings all hit higher watt numbers but have significantly larger batteries so they have an easier time doing that.

A modern cell phone with fast charging can be well above 5C. The wattage numbers are thousands of times lower, but so are the capacities. The fastest charging phone I can find right now claims 300 watts and has demonstrated a bit over 280 from the wall which would imply around 260 reaching the device. In to a 4100mAh battery, which assuming standard chemistry is 4.2v nominal means 17.22 watt hours, so 260 watts would be just over 15C. A Tesla P100D would need to be accepting 1.5 megawatts to match that performance.

Hope that puts it in to perspective for you. The fact that phones exist that can charge at hundreds of watts is absurd already, without some serious advances in both battery and wiring tech we are not getting significantly faster than that.

Would love to see ~500 A capable charging connector and wires in a laptop for a typical 3S/2P pack. It would be an interesting curiosity. :D

I'd like to give a shot to: https://www.clockworkpi.com/home-devterm as it seems the perfect hack-on-the-go device to throw not hardware hungry code. The main issue for me preventing trying one of these is the keyboard and the trackball.

From what I could see from some videos is one of its weakest points. The input device (in my opinion) in this case has to be excellent, I wouldn't care to pay a bit more for this. I would sacrifice the gaming buttons for a bigger regular keyboard and use a trackpoint instead of a tiny trackball.

The thing with the trackpoint is that almost requires no lift of hands from the keyboard, it takes a bit getting used to but in my opinion is one of the best input devices that a notebook or small computer can have.

The devterm seems to follow the Dynabook layout which I think is great, if you could also bend a bit the screen a that would be terrific.

I've got one of these, you are right about the keyboard and trackball, they aren't great.

I have probably only used it a few times, it is very cool to look at but less so a functional device one could use for serious work comfortably.

A shame. It could be a little bit bigger and get a good keyboard and a bit more of a display, and still look like a TRS-80 model 100.

What I like about it (thinking about getting one) is the upgradeability - the RPi CM4 adapter should give it a couple extra generations, but I'm not a fan of the 480-line display idea unless one could use Wayland to extract more virtual pixels.

Maybe the Thinkpad x13s then (Snapdragon 8cx Gen 3)?

Indeed that sounds like a fantastic machine. But still doesn't meets my battery goals. I really think that some of these mobile-soc-in-a-laptop devices should utilize the extra space they have and add on an extra battery. This one seems to have 45Whr. making it 99+WHr would have been much better IMO.

you would need the old Thinkpad with hot swappable batteries, I would say it's a shame they stopping doing them but I don't actually think many people used them in practice.

Also now you can do pretty much that with a separate powerbank charging your laptop via usb C. it's more cumbersome but with a more universal interface and more versatile.

You don't need hot swappable batteries anymore. Tuxedo infinity book packs in a 99Whr battery in a thin form https://www.tuxedocomputers.com/en/TUXEDO-InfinityBook-Pro-1...

If they ever put a mobile SoC in a 13 incher with that battery, I would happily buy it.

You could make a custom battery. I've done this for an e-bike to extend the range considerably.

i've settled on 51nb x2100 for now.

ticks plenty of your (and my) boxes, notably the pre-island thinkpad keyboard.

13" 3000x2000 screen, i7-10810u, 64gb ddr4

How can you desire 3:2 aspect ratio display and 1080p resolution in the same time?

3:2=1.5 and 1920:1080=1.777…

or am I missing something?

I think they just mean ‘not 4k’, which is overkill for most use cases.

The 1440p suite includes a 3:2 resolution at 2160x1440.

I hate that you can either get 4k or 1080p/1440p in laptops.

4k is a bit much, but 1440p is too low. 3k or similar would make much more sense.

Sorry I should have said 1080p+. I do not have the 1080p equivalent of the 3:2 ratio on the tip of my tongue

Does 1920x1280 sound right to you?

Sample (not affiliated)

> Microsoft Surface 3 10.8 FHD (1920x1280) Touchscreen 2-in-1 Education and Business Laptop Tablet (Intel Quad-Core Atom x7-Z8700, 4GB RAM, 64GB SSD) Mini DP, WiFi AC, Webcam, Windows 10 Pro (Renewed)

https://www.amazon.com/Microsoft-1920x1280-Touchscreen-Educa...

This is the mistake in nomenclature (1080p) using the height-value instead of the width-value.

It should really look like this (but it doesn't):

HD - 1280p

FullHD - 1920p

WQHD/2K - 2560p

4K - 3840p

1620x1080 would be 3:2 and 1080p (assuming it's not interlaced, of course). That's not a standard resolution, but there's no reason you couldn't make a display with that resolution.

The Samsung Galaxy Book 2 sort of met your requirements, buts it’s god awful expensive.

It also has god awfull thermal management, even on power efficient Silent mode, the bottom gets hot fast.

The audio is god awfull (for a product in that price range), lot of static with most earphones, have to use models with high impedance.

I found the linux experience subpar on this device (the cpu was running even hotter than on windows last time I tried).

Back when I was looking at Lenovo (ThinkPad) laptops a couple of years ago, I was disappointed that I couldn’t get a ThinkPad that had a “better than 1080p display”, upgradable RAM, Thunderbolt, AMD CPU, and cellular connectivity. I guess the big ask there is “AMD CPU and Thunderbolt”, but Thunderbolt has been open source for how many years now?

I think is it essentially 1 year.

They made big announcements about opening it all up but it wasn't really until this past year or so that it was really.

But from what I understand, Thunderbolt4 and USB4 are mostly interchangeable. It's just that USB4 supports additional slower modes for devices that don't need the speed.

Hopefully someone will correct me if I'm wrong, but the next AMD processors and chipsets support USB4 which provides Thunderbolt4.

[Edit] The AMD Framework would provide you with all of your requirements, except cell service, but you could install it when one does become available?

You can drastically undervolt AMD laptops and get very close. Their default power profiles are very aggressive and power thirsty.

Your best bet is likely a MacBook Pro.

yep, but that doesn't gives me 5G connectivity. But yes, once Asahi Linux is ready for daily usage, I'll likely end up with a Macbook Air