I tapped the back of the lower cigarette lighter, wired to a 12v cigarette lighter socket tucked into a pocket under the HVAC ducting, then taped a high power Belkin USBC charger in there. I first tried a 12v to USBC power supply on amazon but it apparently didn't have the power to run the magsafe puck. It would charge on lightning cable just fine (though I don't know how fast), but the magsafe showed no charging.
I'm not familiar enough with whether the 12v leg of USBC needs to be "clean" or whatever.. or if it actually uses the 5V leg instead? The above was more hardware and cost but I know everything will play nice.
Part of the motivation for the 3D project is actually to learn how to do it. Thanks for the recs though, I'm an utter noob in this space and any info is good info.
Honestly, that route is way better / safer / correct.
The charging circuit will negotiate voltage and power with the brick, and not a lot of stuff will charge above 5V that I know of.
Those specs lie in the USB-C PD standards. Not what iPhone uses, or whatever magsafe does...
So wheres a lightning cable will "pull" 5V up to 2 amps I believe (10W) standard, it can also negotiate from 12-24W as well.
iPhones still do not support ultra fast charge though beyond that. Nor do they come with a charger lol.
USB-C PD devices can go up to a 100W. The USB-C iphone and magsafe cables, I believe have the chip in the tail end of the cable at the plug.
You'll notice those are usually larger/longer and may even have an LED indicator on non apple stuff.
Thats where It might get interesting, giving that cable 12v might be possible, but where it fails is that USB controller requires host communications and handshake.
You have me curious though, remind me what wattage the 12v cig lighter provide in our truck? I know the rear circuit is similar and thats running the 100W inverter.
It may be possible at least to use the 12v for ultra fast usb-c charging and iPad pro for example, which charges extremely slow for those using On-X etc.
You would just need to steal the socket and blank cap the front. Or just use something that promises the moon, complete with burning plastic competition.
Amazon product ASIN B0BLYX8SHZ