No, you cannot just cut a thunderbolt cable and solder stuff together. The laptop nor dock will not accept power without proper PD communication. You can get something like this and solder a 12v line to a barrel adapter BatPower 65W EM3 PD USB C Converter Work with ProE 2 Power Bank External Battery Portable Charger Compatible with MacBook Pro USB C MacBook Air HP Dell Razer Surface Laptop USB-C Tablet and More https://www.amazon.com/dp/B01FCWLMOI/ref=cm_sw_r_cp_api_glt_fabc_MPHQKFP4B227VVVQ0CGY
The amount of effort and money you’ll put into this, could you probably buy a used (no gpu) AORUS gaming box and steal the board inside for your project. It will have USB ports, Pd for your laptop
Edit: also, usb 4 does not accept thunderbolt gpus and as of now does not have a working pcie tunneling mode (although it is in the spec to allow it, no one has turned it into IC)
Do not use that. That will not negotiate to 20v that the one x player needs. You need a power delivery compliant signal to get the one x player to recognize it. You can get a DC to usb c Pd adapter that will work
BatPower EM3 90W PD USB C... https://www.amazon.com/dp/B01FCWLMOI?ref=ppx_pop_mob_ap_share
> USB-C absolutely makes a difference.
You should have read what I said before downvoting...
I never said USB-C "doesn't make a difference".
I said that you can power 20v devices from a Ryobi battery directly, via a "power wheel" adapter (or anything that connects to positive and negative terminals) and a powerhead that goes from barrel connector to your desired output connector type.
I've been doing it every day for years.
> Lots of laptops are foregoing a DC barrel connector in favor of a USB-C port.
Doesn't matter. Nearly all laptops require a powerhead adapter from the barrel plug on the Ryobi "power wheel" adapter to the laptop, no matter if it's proprietary type or USB-C.
"Universal laptop adapter" kits come with dozens of powerhead types,
> Can't do what you're proposing on those devices.
Wanna bet?
As long as the voltage is close enough, and the battery / wiring can handle the amps the laptop requires.
This 3-year-old video demonstrates this, except using a "power wheel" adapter is easier than modifying a charger or jacket barrel adapter.
https://www.youtube.com/watch?v=K0PpY69kxEI
This is the barrel to USB-C adapter he uses:
Does anyone have any experience or thoughts on the Omnicharge Ultimate? I haven't heard too much about them but looks like an interesting battery. It states it can provide 150W DC-out port with adjustable voltage with a male MR30 connector and a female barrel jack. It looks like you could add the DC barrel to USB-C to power/charge a MBP 16.
I found this on amazon https://www.amazon.com/dp/B01FCWLMOI/ref=nav_timeline_asin?_encoding=UTF8&psc=1
not sure if it will work