Macbook Pro Battery full charge: PANIC

Discussion in 'MacBook Pro' started by Mac Head, Jan 3, 2010.

  1. Mac Head macrumors member

    Mar 8, 2009

    I am extremely worried aboaut my Macbook Pro. I have had it for about 8 months, and after I fully charge it, and use it on battery, it shows a shocking 1:50. Isn't it supposed to be 8 hours!!!
    Okay I know it was never 8 hours but it was considerably more than 2 hours.
    What has happened! I barely ever use the computer on battery as it is usually plugged in when in use.


  2. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    Have a look at the capacity via System Profiler > Hardware > Power.

    there you will see
    Full Charge Capacity - the capacity it can hold why it is fully charged
    Charge Remaining - the capacity it currently has

    Cycle Count - number of battery cycles (have a look at MRoogle to find thousands of threads about all this)

    Condition - dito


    There is also CoconutBattery which gives you the original capacity (the full capacity it had when it was build) and the age of your Mac.

    And again, use MRoogle to find plenty of those battery angst threads.
  3. GGJstudios macrumors Westmere


    May 16, 2008
  4. MacsOnAnabolics macrumors regular


    Jul 31, 2009
    Rancho Cucamonga, CA
  5. Mac Head thread starter macrumors member

    Mar 8, 2009
    Hi, I have erad here that it is fine to use it on the power adapter for the majority of the time and that in fact it will help the battery last longer with fewer charge cycles.

    I do regularly, at least once a month, let the battery run out fully, and charge it up.

    Would any one else recommend taking it to the apple store (is there any point)
  6. DivineEvil macrumors regular

    Feb 7, 2009
    I'd recommend calibrating it a few times and then if there is no improvement go to the Apple store.
  7. maflynn Moderator


    Staff Member

    May 3, 2009
    There's no need to calibrate it a few times, once is sufficient. In fact multiple deep drains will do more harm then good.
  8. blackhawk755 macrumors newbie

    Jan 4, 2010
    Battery catastophic failure leads to Hardrive failure.

    I lost a hardrive on Mac Book Pro after 2 plus years. This may be the problem: The Mac book was starting up when the Sony battery failed without warning. Showing full charge, but only charged to 1550 mAh, instead of 6000 mAh plus. Causing a catastrophic failure when the hardrive is starting and needing the most power. The power supply (the battery) lost 3 of its 4 cells. The Sony batteries appear to be the problem and needs to be recalled.
    It is costing the consumer not only a new battery but also a hardrive.
  9. Mac Head thread starter macrumors member

    Mar 8, 2009
    Mine is made by SMP apparently so I don't think I have the problem you described. Although saying that, it feels as though it is not charging fully, how can it only last less than 2 hours! I remember when I first got it it was more than 6hours.
  10. miles01110 macrumors Core


    Jul 24, 2006
    The Ivory Tower (I'm not coming down)
    It depends on what you're using it for. Time remaining on any given charge depends on many things.

    If the health is above 80% capacity with less than 300 cycles you have nothing to worried about.
  11. DaReaper macrumors member

    Dec 27, 2008
    Take it to the apple store and they will replace the battery for you since he hasnt been a year yet...;)

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