For example, [Berry Berry Sneaky] has recently put together a step-by-step guide on swapping the common ThinkPad rectangular charging port (also used on ThinkBooks and other Lenovo machines ...
With laptop chargers and portable battery packs using ... [victorc] was trying to do just that, purchasing an adapter cable to charge a ThinkPad. Things didn’t quite work out of the box, so ...
The ThinkPad P16v Gen 2 laptop comes in the Lenovo packaging, a beefy yellow-tipped Lenovo charger (though you can also charge via USB-C, albeit slower), and other essential documentation.