MacBook Pro 16 battery draining while plugged in and playing game.

[matthewpomar]

While playing a graphics intensive game on my MacBook Pro 16 and connected to the included 98 watt battery charger through a travel dock (output 85 watts to computer), my laptop battery is drained. Seems the CPU and GPU is pulling more power (more than 85 watts) to keep the batter charged and power the laptop during game play.

I need to the dock in order to connect my mouse, keyboard, and USB headset.

Can I connected a second charger to the MacBook Pro to help supplement the power during game play? Will this work and will this cause any problems/damage to the computer if I do so?

Thank you.

 

[apw100]

What’s the problem? Your machine has four USB-C ports, just plug the charger into one of the other two or three you aren’t using for your dock.

 

[matthewpomar]

What’s the problem? Your machine has four USB-C ports, just plug the charger into one of the other two or three you aren’t using for your dock.

I'm using this dock:

Twelve South StayGo | USB-C Hub for Type C MacBooks, Laptops and iPad Pro with included 1 meter desktop cable + stowable travel cable for Home, Office & Travel

StayGo helps to solve the problem of not enough ports for your type C laptop or MacBook, iMac M1 and iPad Pro. What makes StayGo unique, is the fact that the included 1 meter cable gives you the length to store the hub out of sight. Keep your workspace free of clutter by avoiding cords or dongles...

www.amazon.com

It requires the MacBook charger to power it and provides passthrough charging to the MacBook Pro.

I've done some more research and it appears the MacBook will only use one power adapter having the highest watts, even with two plugged in:

What happens if you plug more than one charger in the new MacBook Pro (2016)?

Apple's controversial decision to convert all the ports on their 2016 MacBook Pro lineup to USB-C ports contributes to blur the difference between ports that supply power (such as a power adapters)...

apple.stackexchange.com

I suppose I could power the MacBook Pro directly using the 100watt charger and then use my second MacBook Pro changer to power the USB-C dock, but I'm concerned about damaging the MacBook.

 

[matram]

Your hub can only pass through 85W which, while the MBP can draw up towards a 100W. There is a long thread about 100W hubs which you may want to check.

The MBP will only use one charger if multiple chargers are connected. I assume it will uset the charger with the highest announced power delivery.