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原帖由: Augustine ,

文本:

Hi @piero90

'''WARNING''', please do not directly solder and use it.

Cigarette adapter in cars output mostly is '''12V'''

https://www.nonda.co/blogs/news/134861575-understanding-common-car-charger-specs

'''USB uses 5V.'''... direct 12V can kill your devices

If you see the USB 2.0 wire layout.... there are four cables vcc, d-, d+, gnd

https://www.chipworks.com/about-chipworks/overview/blog/systems-analysis-apple-lightning-usb-cable

I would suggest you to get a cigarette adapter to USB charger as it has been converted to 5V and USB standards. You only need to get MFI certified lightning cables to charge your apple devices.

https://paracable.com/pages/what-is-apple-mfi-certification

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