Terrible Battery Life on Late 2013 rMBP 15"

Discussion in 'MacBook Pro' started by unitethenations, Nov 23, 2013.

  1. unitethenations macrumors member

    Aug 8, 2007
    I did do a search but did not find a thread with answers, so forgive me/please point me in the right direction if this has already been solved.

    I just set up my rMBP and the battery life is 2 hours. I understand that intensive use can decrease these numbers so here are the running applications:

    -Google chrome
    -Postbox (mail app)
    -System profiler
    -Spotlight indexing (<1 hour left)
    50% screen brightness

    Battery info from system profiler:
    Firmware Version: 702
    Hardware Revision: 1
    Cell Revision: 1206
    Charge Information:
    Charge Remaining (mAh): 7611
    Fully Charged: No
    Charging: No
    Full Charge Capacity (mAh): 8657
    Health Information:
    Cycle Count: 2
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): -4644
    Voltage (mV): 12047

    Is this normal for other rMBP owners? What can I do to get 8 hours as advertised?
  2. Nostalgia macrumors member

    Feb 13, 2013
    from what I´ve read, chrome is the problem.

    it seems that is not yet optimized and chews all of your battery, try using safari and see if you can get more hours
  3. Hrududu macrumors 68020


    Jul 25, 2008
    Central US
    That indexing will burn through battery pretty fast. Same with your internet browser if you're doing video or something.
  4. ryallen macrumors newbie

    Aug 3, 2013
    Use safari. On mine, I get way more than you did.
  5. unitethenations thread starter macrumors member

    Aug 8, 2007
    Turned chrome off and time remaining (on battery) went from 1:11 --> 1:53.

    Indexing is apparently fininshed now (quicker than the estimate) and I'm still getting <2 hours. I'm not watching/editing videos. I just have those few applications open.
  6. aiyaaabatt macrumors 6502

    Aug 25, 2013
    Can you close everything, restart your macbook, turn brightness to 50%, turn off wifi, and report your idle battery time estimates after 1 minute idle. (Also, tell us your battery % along with the time estimate. If your battery has only 25% charge left... 2 hours is expected)
  7. unitethenations thread starter macrumors member

    Aug 8, 2007
    Ok. With a restart, no applications running (this is from my phone) and 50% brightness I'm showing 4 hours for a 91% charged battery.

    How was an 8 hour estimate achieved if while not using my mac at all I'm getting half of that?
  8. B... macrumors 68000


    Mar 7, 2013
    Are you actually getting 2 hours of battery life or is the estimate 2 hours?
  9. unitethenations thread starter macrumors member

    Aug 8, 2007
    Thank you everyone for responding.

    It's estimated I think.
  10. aristobrat macrumors G5

    Oct 14, 2005
    If you're asking how Apple got that estimate, it's in the small print at the bottom of the MBP spec page.

    Probably worth mentioning that they don't have Flash installed when they do their tests. IMO, computer manufacturers battery life tests are like car manufactures fuel efficiency tests. Most consumers will never get either of those numbers. :eek:
  11. Daniel L macrumors 6502

    Sep 15, 2009
    What apps are using significant energy when you click to get the estimated time remaining?
  12. thurgood macrumors member

    Nov 16, 2013
  13. Daniel L macrumors 6502

    Sep 15, 2009
    Check activity monitor too. Having an estimate that low isn't normal for sure.
  14. jz- macrumors regular

    Jun 14, 2013
    Try using it for a couple of days to see if this continues, brand new batteries might not give accurate estimates or the best performance on the first use.

    Also, check Activity Monitor for your CPU usage. Sometimes, kernel_task takes up 100% CPU on my rMBP, draining my battery really quickly. Sleeping it for 5 seconds may fix this, if you see that happening.
  15. drambuie macrumors 6502a

    Feb 16, 2010
    The current drain of 4600mA is excessive. No wonder you get less than two hours. At your indicated battery charge of 7611mAh the battery will last for 1.8 hours. A normal discharge rate wouldn't be much more than 1500mA max, which would equate to five hours. There could be a partial short, or other hardware fault. I'm sure the batteries aren't designed for that kind of discharge rate, which could result in internal overheating, and shortened battery life.
  16. neutrino23 macrumors 68000

    Feb 14, 2003
    SF Bay area
    Activity Monitor is your friend. Check the CPU usage and find out what is draining the battery.
  17. Meister Suspended


    Oct 10, 2013
    i have no idea why people even use chrome. :confused:
  18. siamchen macrumors newbie


    Apr 18, 2013
    Because it can sync all settings with Chrome on Windows. Plus, more fun plugins:rolleyes:
  19. MacSumo macrumors regular

    Nov 26, 2013
    if you're in the 14 day purchase window, demand a refund or exchange.
  20. unitethenations thread starter macrumors member

    Aug 8, 2007
    Chrome mostly. But when I turned it off the battery life did not significantly improve.


    No. 2.6/16GB/1TB.


    I did. It usually only mentions chrome, and sometimes no apps at all, but battery life will still be low or the estimate changes erratically.


    Hmm. This information is helpful but worrisome. I earlier had trouble getting it to recognize a disk, and it has shut off randomly 3 times since i set it up. I wonder if there is a problem with the power supply that is causing all of these issues.


    I'm going to take it in for the random shutdowns + erratic battery estimates. Due to the holiday I fortunately have until January to return it/ ask for a refund.


    This was actually really helpful. It's been ~ 1 week and now when I turn on the computer a get a more decent estimate (4-6 hours) but normal usage (web pages + mail) still brings it down to 2 hours or less. I will be taking i to the store as it is also randomly shutting down and restarting.

    Thank you for all the advice everyone.
  21. Quackers macrumors 6502a

    Sep 18, 2013
    Manchester, UK
    I think it needs investigating by Apple as soon as possible. That's way too much draw.
  22. Acronyc macrumors 6502a

    Jan 24, 2011
    My first mid 2012 rMBP had a faulty battery with similar issues. It also wouldn't charge most of the time and other times system profiler said that a battery wasn't installed (even though it was running on battery power). Got the computer replaced by Apple and the new one has been fine for a year now.

    I'd take it up with Apple to either get it fixed or get a replacement.
  23. thundersteele macrumors 68030

    Oct 19, 2011
    Usually it is very simple to track down excessive battery use. While display brightness, keyboard backlight and maybe connected peripherals can have some effect, there are usually only two things that can bring your battery life down that much:

    CPU load
    GPU switch (if a dGPU is available)

    Step 1: Check the CPU load (i.e. using activity monitor). If it is above 10% permanently some process is running and sucking your battery power

    Step 2: Check if the discrete GPU is activated, i.e. by going to "About this Mac" and "More Info..." Some software might be requesting this (e.g. Postbox), and it will immediately cut your battery life in half.

    If the above steps don't reveal anything, i.e. if you system is mostly idle and the discrete GPU is not active, and the battery estimate is still low, then maybe a trip to the Apple store is in order.

    PS: A list of some notorious battery suckers that look somewhat innocent:
    Google Hangouts (+ it keeps the dGPU even after the hangout ends)
    Skype (dGPU)
    twitch.tv (the streams are badly coded, probably flash, and use a lot of CPU power)
  24. Bilalo macrumors 6502

    Aug 17, 2012
    Oxford, England
    For me, i used mine for 5-6 hours with pdfs, safari, study stuff 50% screen.

    Playing games like dota 2 at 100% screen brightness will drain the battery in 1:20 hour. 50% is more at 2 hours or more. This is at 1920x1080 resolution.
  25. snaky69 macrumors 603

    Mar 14, 2008
    There's your problem.

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