So I thinking of doing this: USB-C to 2-Pin DC for CyberFridge

[jahansolu]

Hi Folks,

I've been talking to Grok (https://grok.com/share/bGVnYWN5_18bf6f5d-47cf-49d3-8d76-d975ac24dbf5) trying to see if I can eliminate the 120V AC conversion required for this fridge:
https://www.tesstudio.com/products/...-cybertruck-center-console-floor-refrigerator

I can't remember which user it was who discovered that this fridge has an adapter, not a built-in, inverter. The adapter simply plugs into the fridges built-in 12v DC 2-Pin plug - just like any other portable / cooler style fridge. With that said, I started thinking... surely there must be a way to power this fridge via USB-C, especially since the USB-C in the center console is a PD type USB-C.

According to Grok, these are the only two parts I will need to turn this into a straight DC-To-DC fridge without the hassle of running wires from the 48V in the frunk, the firewall, and using a step-down converter (48V to 12V).

Parts:
1) USB-C PD Trigger Board (12V)
2) 14AWG 12V Refrigerator to O-Ring Battery Termina Power Cord, 90 Degrees 12V Car Fridge Power Cable Built in 15A/10A Fuse for Portable Fridges, Camping Coolers, etc.(10FT/3M)

Obviously soldering is required but it seems too easy of a fix to be true.

Any thoughts?

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[CyberGus]

The referenced cooler is rated at 45W, and the USB-C ports in the Cybertruck share 65W.

 

[jahansolu]

The referenced cooler is rated at 45W, and the USB-C ports in the Cybertruck share 65W.

Tesla's manual states three center console USB-C ports can each provide up to 65W. When all three are used simultaneously, power per port reduces (e.g., ~42W max each).
Which should still be enough to power the fridge at ~35-40W.
https://grok.com/share/bGVnYWN5_b81d7279-bf34-4bac-ba37-12e5784b5c2d

 

[mongo]

The referenced cooler is rated at 45W, and the USB-C ports in the Cybertruck share 65W.

They share 130W
If two ports are in use, each can source 65W.
If all three are on use, the max drops to 42W.
First hand source material:

 

[mongo]

Tesla's manual states three center console USB-C ports can each provide up to 65W. When all three are used simultaneously, power per port reduces (e.g., ~42W max each).
Which should still be enough to power the fridge at ~35-40W.
https://grok.com/share/bGVnYWN5_b81d7279-bf34-4bac-ba37-12e5784b5c2d

Yep, USB-C trigger to get the 12V profile + cord.
Or a USB-C to 12V cord if you can find the right plug for the fridge side. Manual calls out the fridge is 50W and adapter is 14.5V, but fridge can go up to 24V

Of course, you wouldn't want to use the added USB-C ports.
Center console fridges and installation are also covered in other threads.

 

[dpoll995]

Why even go through all that, why not just plug the fridge into the 120v outlet under the rear screen or the 120v plug in the center console? I could understand if there was not 120v power in the cab, but there are 2 outlets right there already.

 

[mongo]

Why even go through all that, why not just plug the fridge into the 120v outlet under the rear screen or the 120v plug in the center console? I could understand if there was not 120v power in the cab, but there are 2 outlets right there already.

Packaging and efficency? Plus the USB-C ports work when AC charging.

trying to see if I can eliminate the 120V AC conversion required for this fridge:

 

[JimBuck333]

Not specific to this application, but perhaps as an easier way to break in, I have been having great success with adapter cables which have USB C on one end, and a barrel connection on the other end with a pre-defined voltage, such as 12VDC or 18VDC. This has allowed me to leave behind the 120 V adapter to several devices, bringing along a single power brick instead. (Sometimes I’ve replaced the barrel connection with something more useful to my situation.)
Example: USB C to 7.4mm Adapter Cable Braided Fast 100W Power Pack Charging Supply Type C Male to DC 7.4 x 5.0mm Barrel Converter Cord for Latitude XPS Inspiron 15 15R 5537 17 17R 5721 Dell Laptop PD Charger
https://a.co/d/0j0EQsRz

 

[Granch]

I have my Cyberfridge into a ecoflow river2 under my back seat, runs for many hours, can top up when super charging also usb-c to xt keeps some juice flowing.

 

[Leifmb]

The rating to look at is the amperage. I really doubt a USB-C port could support turning on a compressor in a refrigerator!

 

[jahansolu]

Packaging and efficency? Plus the USB-C ports work when AC charging.

Spot on.

 

[jahansolu]

Not specific to this application, but perhaps as an easier way to break in, I have been having great success with adapter cables which have USB C on one end, and a barrel connection on the other end with a pre-defined voltage, such as 12VDC or 18VDC. This has allowed me to leave behind the 120 V adapter to several devices, bringing along a single power brick instead. (Sometimes I’ve replaced the barrel connection with something more useful to my situation.)
Example: USB C to 7.4mm Adapter Cable Braided Fast 100W Power Pack Charging Supply Type C Male to DC 7.4 x 5.0mm Barrel Converter Cord for Latitude XPS Inspiron 15 15R 5537 17 17R 5721 Dell Laptop PD Charger
https://a.co/d/0j0EQsRz

I'm curious as to how I would connect this cord to the fridge though?

 

[jahansolu]

I have my Cyberfridge into a ecoflow river2 under my back seat, runs for many hours, can top up when super charging also usb-c to xt keeps some juice flowing.

I'm trying to reduce "points of failure". To me, even having that AC to DC brick when it's not necessary is:
a) a waste of energy; DC --> AC --> DC conversion
b) Fridge's power adapter failing
c) As @mongo pointed out, keep the fridge running while vehicle is charging - it works when Supercharging / L3 but not when AC / L2 charging.

 

[JimBuck333]

I'm curious as to how I would connect this cord to the fridge though?

With something like this in between, assuming that the mini fridge has a 12 v cigarette lighter cord?

 

[Granch]

Use a ecoflow river 2/3 under the rear seat and use the 12v port on the ecoflow.

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