cMBP gaming and battery question

Discussion in 'MacBook Pro' started by weemanpow3, Aug 21, 2012.

  1. macrumors 6502


    Mar 14, 2008
    Hi, I have a 2012 15" 2.6GHz MBP and have a question about the battery when gaming.

    When I game, I use Bootcamp (latest updates/drivers/tweaks) and have my Mac plugged in. I noticed that charger cord light would frequently change from green to orange charging the battery (seems like when it goes down to 95% it would charge back up to 100%). I plugged in my Kill A Watt meter and noticed the power consumption is over 90 watts (90-93 watts). I thought it could only max out at 85 watts. The charger was so hot, I thought it was gonna melt.

    Will this kill my battery?
  2. macrumors Westmere


    May 16, 2008
    No, it won't kill your battery. It's normal for your MBP to draw power from both AC and battery during periods of extreme demand, such as gaming or other multimedia operations. This can cause your battery to stop charging or even drain, even though it's plugged in. Read the AC POWER section of the following link. This should answer most, if not all, of your battery/charging questions:
  3. macrumors 6502a

    Jul 17, 2011
    Ridgewood, NJ
    No need to worry, that's normal. When gaming, the demands on the laptop are higher, and your MacBook can drain the battery even when plugged in.
  4. macrumors 6502

    Jun 19, 2008
    St Louis
    My charger also gets that hot when gaming, seems normal. Once it had slipped between cushions on the couch, and it was VERY hot. Since then when gaming I always try to prop it up so there is plenty of air circulation around it.
  5. macrumors 6502

    Apr 15, 2012
    The battery is good for 1000 cycles until it goes down to 80% capacity so think of this as giving your MBP a little exercise and keeping the electrons in tiptop shape.

    In my previous MBP my battery health was 100% even though it was never unplugged; I attributed that to the use of battery when I did CPU+GPU intensive tasks.

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