This is just a list of links:
- Information on the differences between USB ports for charging, includes information on supply and cables.
https://www.extremetech.com/computing/115251-how-usb-charging-works-or-how-to-avoid-blowing-up-your-smartphone#:~:text=Okay,%20now%20the%20numbers:%20A%20regular%20USB%201.0,pins,%20so%20USB%203.0-compatible%20cables%20have%20nine%20wires.
- Please see this post on problems and dangers of charging at very low temperatures (below 0C)
- Information on usbC pin connections ~ a properly manufactured usbC cable can be inserted either way.