Re: [PLUG] Can I enable trickle charging of my USB-C laptop?

[Eitan Tsur]

For what it's worth it highly depends on what the laptop is designed to
take advantage of; I will say there are a couple models out there that will
charge on low-wattage power supplies if they are fully shut down and off,
but will refuse to charge if on and consuming higher wattage.  (IE: needs a
60W normally when on but will charge on 45W supply when off).   Wouldn't
hurt to test, but whatever you find it to do is what you get; Generally I
don't know of any way to change the firmware programming for the USB
controller and/or charge controller.  Assuming charging functions are even
configurable on whatever parts they installed in your specific model.

-Eitan


Virus-free.
www.avg.com

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On Wed, Apr 20, 2022 at 9:13 PM Tomas Kuchta 
wrote:

> You need charger (or battery bank) with the appropriate USB PD version.
> Most cheap phone charger do not talk USB PD - but - you could get one of
> those and it should work with everything.
>
> USB PD 2 or 3 typically come as 45W or more. 60W ones are pretty small and
> you could charge laptop, phone, battery bank off it. Framework sells one of
> the GaN small 60W types for reasonable $$. Or bring your 100W laptop brick
> for free to charge your phone fast.
>
> Hope it helps,
> -T
>
> On Wed, Apr 20, 2022, 19:43 Eric House  wrote:
>
> > I have a brand new laptop, my first with nothing but USB ports (two C,
> one
> > old-style.) Ubuntu seems to run flawlessly, and it becomes part of my
> > desktop setup via a single USB-C cable that carries Ethernet, video,
> power
> > and whatever connected USB peripherals require. It came with a 100W power
> > brick that plugs into a USB-C port.
> >
> > My one disappointment is that it won't charge off anything but a
> > laptop-caliber charger. I'd hoped that when traveling I could bring a
> > single smaller phone charger and that, even if it took overnight, the
> > laptop could be charged. Instead it doesn't recognize anything providing
> > less than 30W or so.
> >
> > Does anybody know if that's something I can change, either by installing
> or
> > modifying software? Any suggestions where to start researching this? If
> > it's not already obvious, I know next to nothing about USB.
> >
> > Thanks,
> >
> > --Eric
> >
> > PS I know there are some 30W chargers not much larger than phone
> chargers.
> > But I'd rather be able to use whatever happens to be available, either an
> > older charger or USB battery pack, in a pinch.
> >
> > PPS It's an MSI "Prestige 14" ultrabook with 32G/1T. $1K at Costco on
> sale.
> > No touchscreen, and a lower-res screen that doesn't drain the battery on
> > airplanes but drives a 4K monitor at home. I like!
> > --
> > My g-bike can trounce your e-bike!
> >
>

Re: [PLUG] Can I enable trickle charging of my USB-C laptop?

[Tomas Kuchta]

You need charger (or battery bank) with the appropriate USB PD version.
Most cheap phone charger do not talk USB PD - but - you could get one of
those and it should work with everything.

USB PD 2 or 3 typically come as 45W or more. 60W ones are pretty small and
you could charge laptop, phone, battery bank off it. Framework sells one of
the GaN small 60W types for reasonable $$. Or bring your 100W laptop brick
for free to charge your phone fast.

Hope it helps,
-T

On Wed, Apr 20, 2022, 19:43 Eric House  wrote:

> I have a brand new laptop, my first with nothing but USB ports (two C, one
> old-style.) Ubuntu seems to run flawlessly, and it becomes part of my
> desktop setup via a single USB-C cable that carries Ethernet, video, power
> and whatever connected USB peripherals require. It came with a 100W power
> brick that plugs into a USB-C port.
>
> My one disappointment is that it won't charge off anything but a
> laptop-caliber charger. I'd hoped that when traveling I could bring a
> single smaller phone charger and that, even if it took overnight, the
> laptop could be charged. Instead it doesn't recognize anything providing
> less than 30W or so.
>
> Does anybody know if that's something I can change, either by installing or
> modifying software? Any suggestions where to start researching this? If
> it's not already obvious, I know next to nothing about USB.
>
> Thanks,
>
> --Eric
>
> PS I know there are some 30W chargers not much larger than phone chargers.
> But I'd rather be able to use whatever happens to be available, either an
> older charger or USB battery pack, in a pinch.
>
> PPS It's an MSI "Prestige 14" ultrabook with 32G/1T. $1K at Costco on sale.
> No touchscreen, and a lower-res screen that doesn't drain the battery on
> airplanes but drives a 4K monitor at home. I like!
> --
> My g-bike can trounce your e-bike!
>

[PLUG] Can I enable trickle charging of my USB-C laptop?

[Eric House]

I have a brand new laptop, my first with nothing but USB ports (two C, one
old-style.) Ubuntu seems to run flawlessly, and it becomes part of my
desktop setup via a single USB-C cable that carries Ethernet, video, power
and whatever connected USB peripherals require. It came with a 100W power
brick that plugs into a USB-C port.

My one disappointment is that it won't charge off anything but a
laptop-caliber charger. I'd hoped that when traveling I could bring a
single smaller phone charger and that, even if it took overnight, the
laptop could be charged. Instead it doesn't recognize anything providing
less than 30W or so.

Does anybody know if that's something I can change, either by installing or
modifying software? Any suggestions where to start researching this? If
it's not already obvious, I know next to nothing about USB.

Thanks,

--Eric

PS I know there are some 30W chargers not much larger than phone chargers.
But I'd rather be able to use whatever happens to be available, either an
older charger or USB battery pack, in a pinch.

PPS It's an MSI "Prestige 14" ultrabook with 32G/1T. $1K at Costco on sale.
No touchscreen, and a lower-res screen that doesn't drain the battery on
airplanes but drives a 4K monitor at home. I like!
-- 
My g-bike can trounce your e-bike!