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Are the USB ports always powered?

timeshifter

Member
Jan 23, 2021
210
158
USA
Is the USB port always on? Specifically the right hand USB A port in the console.

I have a device that I'd like to be powered continuously whether I'm driving or the car is parked.

My Model Y was built in January 2021. It has the old console and the USB for the dashcam recordings is in the glovebox.
 

Poncherelly

Member
Jun 12, 2019
611
93
Ottawa
I think it[s powered until it goes to sleep. I have a raspberry pi in my conso0le and when the car goes to sleep, it powers off the pi. I think the only way around this would be to have a battery charge off the port and have your device plug in to that battery. Won't go forever, but will give you more live time.
 
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golferguy

Member
Jan 30, 2021
132
198
SE Florida
I think it[s powered until it goes to sleep. I have a raspberry pi in my conso0le and when the car goes to sleep, it powers off the pi. I think the only way around this would be to have a battery charge off the port and have your device plug in to that battery. Won't go forever, but will give you more live time.
Yes, one car goes to sleep USB and 12v aux ports do shut off. Typically within 30 mins of auto lock. If Sentry is on, the ports stay active.
 

DaveORD

Member
Mar 12, 2020
832
751
Chicagoland
What kind of amperage does that port provide? I’ve been told that it needs to provide 1.5 - 2.0 amps for the device I’m thinking about using.
You are not going to get 1.5+ A via the USB-A port. That will max out at 0.5 or 0.9A, depending on whether it is USB 2.0 or USB 3

Best chance to get that kind of power is the USB-C port, or the 12V accessory connection (aka cigarette lighter plug).
 

DaveORD

Member
Mar 12, 2020
832
751
Chicagoland
My car has a USB-C port in the front console that is driving the wireless charging pad. Also have two USB-C ports at the back of the console for the back seat. So they'll be higher amperage simply because they're USB-C?

Yes. Google USB power for more info. Tesla does not really publish much info on these ports, so I doubt the type A connections will provide the kind of power you are looking to get. You can try and see if it will negotiate that much power, but chances are you will need to use the USB-C connection instead if you need a data connection to the car too.

If you only need power, no data, there are adapters to get that power from the the 12V accessory connection. For ex.
https://www.amazon.com/Wishinkle-Charger-Samsung-Qualcomm-Certified/dp/B07SJ1ZJ2D
There are many more out there, this is just one example, shop around.
 

timeshifter

Member
Jan 23, 2021
210
158
USA
Forgot that I had this handy little USB tester. Tested my iPhone 11 Pro plugged in both on USB A and USB C.

USB A port in console (5V 1.6A)
consoleusba.png


USB C port in console (used for factory wireless charging pad) (9V 2.2A)
consoleusbc.png


USB C port for rear seat passengers, back of console (9V 2A)
rearusbc.png
 
Last edited:

GeekyDoc

Member
Jan 18, 2021
81
33
PA
Bloody good info there! I was wondering especially about the output from the rear USB-Cs. I plugged in a tiny USB-C -> USB-A adapter and while it's tiny light is on indicating it's getting power, it won't charge any device unless I plug in directly to the USB-C.

Any idea of the output for the wireless charging pads? I have noticed they slow charge my IPhone 12 pro to the point that I might think about using a wired charging solution.
 

timeshifter

Member
Jan 23, 2021
210
158
USA
Any idea of the output for the wireless charging pads? I have noticed they slow charge my IPhone 12 pro to the point that I might think about using a wired charging solution.
The second photo in my post with the caption "USB C port in console (used for factory wireless charging pad) (9V 2.2A)" shows this. I disconnected the plug that feeds wireless charging pad, so that 9V 2.2A is what feeds it. How that translates into actual wireless charging I have no idea.

I did consider downgrading my car to not use the wireless charging pad and do it wired. Previous Model 3 and Model Y didn't have wireless charging. You might find a solution here.
https://www.reddit.com/r/TeslaLounge/comments/niy91j
 

DaveORD

Member
Mar 12, 2020
832
751
Chicagoland
Bloody good info there! I was wondering especially about the output from the rear USB-Cs. I plugged in a tiny USB-C -> USB-A adapter and while it's tiny light is on indicating it's getting power, it won't charge any device unless I plug in directly to the USB-C.

Any idea of the output for the wireless charging pads? I have noticed they slow charge my IPhone 12 pro to the point that I might think about using a wired charging solution.
https://fccid.io/2AEIM-WC2/User-Manual/15-WC2-UserMan-US-4594069.pdf ???

9V 3A input, and max output of 15W
Since 9x3 = 27W max in, have to assume that 15W is total output.
No idea if that is 7.5W each side, or if only one side is in use then can you get more than 7.5W
 
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