I have a 2018 15" MacBook Pro w/ a Core i9 and 32GB of RAM. I recently purchased the Thunderbolt 3 dock w/ host charging. It only supports 60W for the host charging, and the 15" MBP comes with an 87W adapter. Reading around online, I found that using a 60W charger on the 15" MBP works fine, it just charges more slowly. Unfortunately, I have recently discovered that this is not the case. I do some video transcoding, which completely maxes out all 6 cores of the processor. When this occurs, the 60W power input is actually not enough to keep the system running, and the MBP’s battery slowly begin to drain. Eventually, when the battery reaches 5%, the MBP will throttle it’s processors to prevent excess power drain, and it will hover at 5% until I either stop the transcode or plug in the 87W adapter.
I’m posting this for two purposes - one to give users a heads up that 60W may not be enough for your 15" MBP under certain situations. And two, to wonder if there are plans on releasing an 87W version of the Thunderbolt 3 dock, or if the existing dock can output more than 60W with a more powerful wall adapter?