Why Does My Macbook Charger Get So Hot. I have the same problem and it started after I installed Big Sur. The charger has a direct plug in piece the prongs stick out of the block and an extension cord piece the prongs are on the end of the extension cord which sticks out of the box.
If it becomes hot again take the laptop and power adapter to a computer repair shop and have the technicians check it. If your charger gets too hot to touch or if the plastic surfaces start to warp that does indicate a problem. A charger with a terminal thats compatible to a device port say a micro USB cable and port doesnt necessarily mean that the charger may be used to charge the device.
You should also make sure that it is placed on a flat open surface.
When your Macbooks battery is down to say less than 50 the charger is on a fast charge mode. Answer 1 of 4. If it becomes hot again take the laptop and power adapter to a computer repair shop and have the technicians check it. Assuming that the wall socket is providing power or the switch for the socket is on it is normal or rather common for power adapters of devices to be a bit warm when connected to the wall socket mains without a device connected to the other end iPad iPhone laptop etc.
