Macbook Pro 16 losing battery when plugged in

I just got the new machine. I had a 2013 before this and never had this problem. When I am working in After effects or Cinema 4D and am rendering, My battery levels will go down. I'm plugged directly in to the macbook, and I'm using the new power supply that came with the machine.

So now, this morning I can't do any more renders because I only have 7% battery. Does this have something to do with the USB C power specifications? My magsafe powered macbook never ever did this. Is there a way to get more power to the macbook so that it stays at full power? I really need this machine to be able to do overnight renders and longer. This render was estimated at 40 hours and now I can't finish the job.

Dave