I am a usb-pd believer. My phone, laptop, soldering iron, … All usb type-c with usb-pd capability, all running from my laptop charger that can do 5,12,19 and 20v
Miniware TS80?
I’m with you, usb c all the things. Can you recommend a good pd powerbank?
I’ve got one of these and it works pretty well. I’m sure there are better ones out there and a second USB c port would be nice, but it’s affordable. https://a.co/d/9JzWOi4
Pine64’s pinecil v2 actually. But it uses the same tip as miniware’s soldering irons.
Cant help with powerbank though haha
I’m waiting for a 138kV three phase USB-C for EV instant charging.
I’m waiting for the MagSafe variant myself.
What is that picture?
Explosion
Ah… I thought it was some kind of hamster
It was
Do you charge your hamster with a usb c cable?
Sure. 96W charger on my old phone that can’t take more than 25W.
What a weird comment. I guess you’d not plug your 96W charger into your 2.4kW capable power socket?
What exactly is weird? I’m using a 96W USB laptop charger to charge my phone, rated for a 25W charger. That’s exactly what this thread is about???
And yes, the charger is plugged into a 3.7kW wall socket. Where else?
Ah, dangers of written text. The “Sure.” comment make it look like you were being sarcastic to me as a Brit (we use sarcasm a lot!)
I stand corrected!Haha, never even thought of that. No sarcasm was intended.
My laptop doesn’t even have an usb type c charger
Yep. I charge pretty much everything with my laptop charger.
I’ve got wireless charging pads/stations/car holder everywhere. Super convenient to just drop your phone down and keep it charged.
My phone’s usb C port got so loose after ~2.5 years that cables would just fall out, so I fully committed to QI charging to preserve whatever is left of that port for things like data transfer.
i use my steamdeck charger for the phone and tablet yeah
Yup. Usually the device being charged can scale down the power throughput so it’s not getting 60W+ if it’s not able to handle it.
That’s the core of charging management: The charged device controls the process, not the charger.
Anything else won’t work if you think about it.
In this thread: people who don’t understand what power is.
Power isn’t something that is “pushed” into a device by a charger. Power is the rate at which a device uses energy. Power is “consumed” by the device, and the wattage rating on the charger is a simply how much it can supply, which is determined by how much current it can handle at its output voltage. A device only draws the power it needs to operate, and this may go up or down depending on what it’s doing, e.g. whether your screen is on or off.
As long as the voltage is correct, you could hook your phone up to a 1000W power supply and it will be absolutely fine. This is why everything’s OK when you plug devices into your gaming PC with a 1000W power supply, or why you can swap out a power-hungry video card for a low-power one, and the power supply won’t fry your PC. All that extra power capability simply goes unused if it isn’t called for.
The “pushing force” that is scaled up or down is voltage. USB chargers advertise their capabilities, or a power delivery protocol is used to negotiate voltages, so the device can choose to draw more current and thus power from the charger, as its sees fit. (If the device tries to draw too much, a poorly-designed charger may fail, and in turn this could expose the device to inappropriate voltages and currents being passed on, damaging both devices. Well designed chargers have protections to prevent this, even in the event of failure. Cheap crappy chargers often don’t.)
Great write up! Definitely filled in the info I only know a little about.
In this thread: people who don’t understand what power is.
Oh, please enlighten us, oh wise one. You might want to google “power draw” before you reply.
I guess he should have included the subtitles.
Have you ever heard the story of Darth Plagueis the Wise?
Not usually, but all the time. It’s part of the USB standard to negotiate the power that the device and even the cable can handle.
When all USB could do was 5V I already didn’t trust any charger but mine - I couldn’t believe people dared to connect their devices to charge into any public USB chargers.
Now that they can go up to 20V, and we have to trust everything will work with the negotiation and wiring to get the right voltage, it’s even scarier!
Will go up to 48V (240W) with the next USB-PD standard.
But as long as it’s reputable hardware that actually implements the starndard, I’m not too worried.
48V and we’re back to POTS (plain old telephone system) voltages :-)
I agree, but that’s the problem even from reputable sources, glitch happens. Old 5V-only chargers would need much more things to go wrong to fry our devices. A 20V (or 48V !) one is just a small (sw or hw) glitch away to zap a device that doesn’t support such voltages.
The USB standard is usally really robust and the changes of SW errors is small. If you have a good brand laptop it will probably come with very reliable charger as well. I really don’t worry about it.
Usually
Is there some exception to USB-C im not aware of? Am i putting myself in danger using high power chargers to charge low power devices?
If you use really cheap 3rd party chargers there is a possibility.
No, they do a handshake through the USB connection and negotiate the best charging wattage.
And to add : if the handshake fails, or no common voltage can be decided, it will stay at 5v
Yup. The phone gets pretty hot which is odd, but it charges quickly. Fwiw it’s a Pixel 4xl.
I have a 65W usb c charger that I use for basically everything
My laptop charger won’t charge the phone at anything other than slow speed. So I tend to still use the phone charger.
But the phone charger is used to charge pretty much everything. I could use it to charge the laptop but the cable’s too short to be practical.
I do and it’s wonderful. No wall warts just clumping up or trying to figure out where right charger is. All my chargers have same watt and usb c so no matter if I need to charge my phone, laptop, steam deck or headphones it all just fits and charges reasonable fast no matter where in the house I am.
i charge most things with usb-c. for everything else, there’s mastercard.
my laptop charger is round and my phone is usb-c
my laptop has usb-c but it doesn’t seem to charge it
I have a dell laptop. Barrel charging port, but the USB-C port will charge it too… Just very slowly with a 33W phone charger instead of the 130W laptop charger.
I charge my headphones with a laptop charger
