Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

xcfmx

macrumors newbie
Original poster
May 14, 2012
16
0
Used my Thunderbolt Gigabit Ethernet Adapter for the first time on my MBPR. It did it's job, but my battery life went from 6.5 hours to 4.5 hours just by plugging it in. Unplugged it and battery went back to 6.5 hours. Glad it works, but a bummer that it sucks so much battery.
 
That's the price of using the TB chip.

Though, one would assume if you are physically tied to a LAN jack, you would have power nearby.

Wonder how much more power the TB chip uses than a standard Ethernet chip.
 
Used my Thunderbolt Gigabit Ethernet Adapter for the first time on my MBPR. It did it's job, but my battery life went from 6.5 hours to 4.5 hours just by plugging it in. Unplugged it and battery went back to 6.5 hours. Glad it works, but a bummer that it sucks so much battery.

What happens if you turn off Wi-Fi too?
 
The adapter also got moderately warm, not hot, in the 30-45 minutes I was using it.

That's the price of using the TB chip.

Though, one would assume if you are physically tied to a LAN jack, you would have power nearby.

Wonder how much more power the TB chip uses than a standard Ethernet chip.

This is true 90% of the time. I just hate having to plug in so many cords for a brief stay at the office. Anyhow, just wanted to share my experience.

----------

What happens if you turn off Wi-Fi too?

I wasn't connected to a Wi-Fi network, but Wi-Fi wasn't disabled.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.