Change USB Wattage output?

[zach57x]

Is there anyway to change the wattage the usb ports output when connecting a phone to use for CarPlay/AA? I think I measure it at 7.5 but I would like to reduce it to 1 or even 0 to just use it as an audio input

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[EONR24]

Is there anyway to change the wattage the usb ports output when connecting a phone to use for CarPlay/AA? I think I measure it at 7.5 but I would like to reduce it to 1 or even 0 to just use it as an audio input

I don't think this is possible. What are you trying to achieve?
I see this setting below in the ACM. the factory digit is 5.

 

[zach57x]

I don't think this is possible. What are you trying to achieve?
I see this setting below in the ACM. the factory digit is 5.

So that as I am connected to carplay my phone is not charging (Causing it to overheat and damage the batter). Just use the usb port as an input but not a charer as well.

 

[Carlitos_92]

So that as I am connected to carplay my phone is not charging (Causing it to overheat and damage the batter). Just use the usb port as an input but not a charer as well.

The standard low wattage coming out of the vehicle's USB port should not damage the battery or cause it to overheat.

If you are concerned about battery health, there are settings in the phone that will determine how it charges for the best battery lifespan.

 

[zach57x]

The standard low wattage coming out of the vehicle's USB port should not damage the battery or cause it to overheat.

If you are concerned about battery health, there are settings in the phone that will determine how it charges for the best battery lifespan.

It's not low wattage though. I can't find the photo but I measured it with a tweak on my old jailbroken phone and I believe it was 7.5 watts. If your phone is already above 80% this can be bad. And I am aware of the charging limit feature (which is broken for me and lots of other iPhone users) as well as the optimized charging feature.

 

[Carlitos_92]

Not gonna argue over what constitutes "high wattage." Are you saying on your phone, the internal programming that would normally slow down the charging rate once the battery reaches a certain SoC is broken? That is not even a user-controllable feature.

 

[zach57x]

Not gonna argue over what constitutes "high wattage." Are you saying on your phone, the internal programming that would normally slow down the charging rate once the battery reaches a certain SoC is broken? That is not even a user-controllable feature.

No, I am not talking about the built in battery controlling measures, I thought you were talking about the settings that are available to the user. Take a look at this https://discussions.apple.com/thread/255172326?sortBy=best

 

[Carlitos_92]

Ok, that hasn't been an issue on my older iPhone. But because of the battery technology, most phones will slow the rate of charging once they reach a certain state of charge, just like EVs. So regardless of the rating of the USB outlet, the phone won't charge full speed once it gets towards the end. Coincidentally, I think it is around 80% on iPhones.

Anyway, good luck.

 

[mp24]

https://www.amazon.com/PortaPow-Cas...&sprefix=usb+charge+block,aps,106&sr=8-4&th=1

 

[EONR24]

No, I am not talking about the built in battery controlling measures, I thought you were talking about the settings that are available to the user. Take a look at this https://discussions.apple.com/thread/255172326?sortBy=best

Hey what about just buying a wireless CarPlay/ android auto adaptor?? then your phone would not be plugged in at all? Would this work?.

 

[CD_SM]

Hey what about just buying a wireless CarPlay/ android auto adaptor?? then your phone would not be plugged in at all? Would this work?.

Yup. That's what I did for my Pixel 6a.
6a's are notorious for overheating easily, and it definitely did when using wired Android Auto for navigation - GPS and data both pretty busy + charging = warm phone.
And when I do need to charge my phone in the car, I use a high quality charger plugged in to the 12v port. (I got one that has a voltmeter also which can be useful for hybrid). Oddly it doesn't overheat then. Maybe it's a lower wattage, though it does say "charging rapidly" on my phone.

 

[HiFi Joe]

Is there anyway to change the wattage the usb ports output when connecting a phone to use for CarPlay/AA? I think I measure it at 7.5 but I would like to reduce it to 1 or even 0 to just use it as an audio input

Easy to fix, just add a wireless car play (or android auto) adaptor and charge your phone only when needed

Amazon.com: CarPlay Wireless Adapter - AutoSky - for Factory Wired CarPlay 2023 Upgrade Plug and Play Dongle Converts Wired to Wireless Fast and Easy Use Fit for Cars from 2015 iPhone iOS 10 and up : Electronics

 

[zach57x]

I don't want to go the wireless option as the quality is not as good

 

[EONR24]

I don't want to go the wireless option as the quality is not as good

https://www.amazon.com/PortaPow-Cased-Power-Blocker-Single/dp/B094FYL9QT/ref=sr_1_4?crid=2RIMECLPHCZ16&dib=eyJ2IjoiMSJ9.FV8bwUi0jBuCy0XB_u8eWL2THQiLcT-edz32B32NGQNM4v26CmokpDzZsIlA4SbIs6vHqFhNHL2UxQc08GBY0uUDVERRXpHd-Q036PcE-pliSeKU6CXxJfcmwvSn5lXORBIGs_lxzNLrLOpZgNM2iTP5vUGgeNEuKGNHqXVTi3MU0s6CU5tDpvUF5TiGtYU34rAkKU5ozMEgSx_ddGCwKswI-R3OnmY4UllTE3Bo0oc.8qvwUUYITgmKjMJBBFoAD2uyKA2VKSlMNpktcqEwP08&dib_tag=se&keywords=usb+charge+blocker&qid=1718631613&sprefix=usb+charge+block,aps,106&sr=8-4&th=1

Not possible to change the voltage in forscan. This option linked by @mp24 looks like exactly what you need

 

[zach57x]

Not possible to change the voltage in forscan. This option linked by @mp24 looks like exactly what you need

Yes, that does look like a solution to my problem and if I ever need to charge, I can just unplug it!

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