I have the strangest problem ever my mac drains even if it's charging. I have attached a picture to let you understand: as you can see the battery level decreases even if it is plugged in. I am not doing anything special than what I used to do with my previous mid 2014 mac but still this machine is not able to cope with it. It's a disaster. Any help appreciated.
Edit
as @Buscar suggested I reviewed my battery info from the menu here is the result:
So the battery number I so it positive but it seems it's not recovering but slowly decreasing…
Best Answer
If your MacBook Pro is discharging while in use and plugged in, you are probably using the wrong charger. The 2017 MacBook Pro uses either a 61W or 87W charger. See: Find the right power adapter and cable for your Mac notebook
When selecting a charger, always go equal or bigger than what you need. The wattage rating is the maximum that will will supply, not "push". In other words, if your device needs less, it won't harm it. However, if it needs more, there won't be any more to give.