USB-C Hub draining battery?

[Enrico]

I just got a QacQoc USB-C hub, but after connecting it to the TV via HDMI presenting a Powerpoint for 1h30, it got VERY hot and the Mac discharged about 40%.

Is this the normal behaviour I should expect, or should I return it for something better?
Not sure if the original Apple adapter would be draining this much battery from the Mac as well... or get this hot!

 

[negativzero]

Its not the hub, you're presenting Powerpoint which will drain the battery faster as the second screen usually pulls more power for the dGPU or iGPU to run.

As a side effect, yes, the hub will get hot.

 

[Enrico]

Its not the hub, you're presenting Powerpoint which will drain the battery faster as the second screen usually pulls more power for the dGPU or iGPU to run.

As a side effect, yes, the hub will get hot.

Great, so basically the Apple adapter would do the same I guess!
Is that a PowerPoint bug that it would make sense to disable the dGPU or this is normal?

 

[negativzero]

You can't disable the dGPU if you need a second screen. The Macs are wired like this.

 

[bennibeef]

Plain simple:

The macbook needs more power because you connected a second display.

 

[Enrico]

How does the 13" behave in this regard, without a dGPU?
I suspect it would have a better battery life while presenting...

 

[jerryk]

How does the 13" behave in this regard, without a dGPU?
I suspect it would have a better battery life while presenting...

Potentially. But if your presentation contains video or a lot of animations, morph transitions, etc it could get jerky.