Thunderbolt Gigabit Ethernet Adapter

Discussion in 'MacBook Pro' started by xcfmx, Jun 20, 2012.

  1. xcfmx macrumors newbie

    May 14, 2012
    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.
  2. whiteonline macrumors 6502


    Aug 19, 2011
    California, USA
    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.
  3. guspasho macrumors regular

    Apr 13, 2011
    What happens if you turn off Wi-Fi too?
  4. xcfmx, Jun 20, 2012
    Last edited: Jun 20, 2012

    xcfmx thread starter macrumors newbie

    May 14, 2012
    The adapter also got moderately warm, not hot, in the 30-45 minutes I was using it.

    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.


    I wasn't connected to a Wi-Fi network, but Wi-Fi wasn't disabled.

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