Help! My Macbook Pro Aluminum has TERRIBLE battery

Discussion in 'MacBook Pro' started by zooby, May 2, 2009.

  1. zooby macrumors 6502a

    Joined:
    Feb 2, 2008
    #1
    I know, you've all probably heard it before, but there is something wrong with my battery for sure. I love my MBP aluminum, but the battery is a huge problem for me. First of all, when I got it, it already had 3 battery loadcycles. Odd. But that wasn't the problem, really. The problem is that the battery takes TOO long to charge ... Right now, it is at 91% and it is saying that it will be 1:20 until it is fully charge. Is this normal? I've only been using it for a week too.

    My max. battery charge states 4680 mAh, higher than the original capacity.

    YES, I have calibrated it. My bluetooth is turned off and my screen is only 25% when it comes to brightness. Any suggestions? I am beginning to get frustrated.

    It is a Late '08 MBP. Do the '09 + MBPs fix this problem?
     
  2. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #2
    Think of charging a battery as filling up a glass of water without the glass having to top over water. At first you pour water quickly and the glass fills, but as you reach the top, you start pouring only drops at a time to prevent spills. Same with the battery, your MacBook is charging it as not to wear out the battery prematurely by overcharging or charging it too fast.
     
  3. zooby thread starter macrumors 6502a

    Joined:
    Feb 2, 2008
    #3
    Right. But is it normal for it to take THIS long?

    I mean, now it's at 95% and it says 0:47 'till it's full. Wow. :-/ Does your battery charge this slow too?
     
  4. assassinm4 macrumors member

    Joined:
    Apr 13, 2009
    Location:
    Hong Kong
  5. jackiecanev2 macrumors 65816

    jackiecanev2

    Joined:
    Jul 6, 2007
    #5
    Wirelessly posted (BB 8900: BlackBerry8900/4.6.1.101 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/301)

    If it makes you feel better, the first few charge cycles of the macbook air took people ~8-12 hours. But in short, yes, the charging time is normal.
     
  6. zooby thread starter macrumors 6502a

    Joined:
    Feb 2, 2008
    #6
    LOL. Well, if it takes almost an hour to charge from 90% to 100% ... then I'm not too far off. Is this just for the few charges? Is this the same for the 2.66 09+ MBPs?
     
  7. Scottsdale macrumors 601

    Scottsdale

    Joined:
    Sep 19, 2008
    Location:
    U.S.A.
    #7
    That is a nice analogy. May I use that in the future if it ever comes up for someone and I need to explain?

    To the OP: yes, is just for the first few weeks and then the battery starts to charge quicker.
     
  8. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #8
    Course you can...:D
     
  9. zooby thread starter macrumors 6502a

    Joined:
    Feb 2, 2008
    #9
    Thanks a bunch guys!

    Quick question - how long did it take for your batteries to begin to charge quicker? What do I have to do to make this process better/easier for my mac? Calibrate it every now and then?

    How long does it take you guys to charge your batteries currently?

    Also, is there any explanation for there being 3 battery loadcycles already on my laptop? I'm guessing this is normal as well ... ?
     
  10. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #10
    Mmmm hard to say... a month....
     
  11. Thomas Davie macrumors 6502

    Joined:
    Jan 20, 2004
    #11
    I've only had my UMBP 17 for 3 weeks, so take this with a grain of salt :)

    I calibrated it on day 5, and it took 3 hours to charge. I calibrated on day 19 and it took 3 hors to fully charge.

    To charge quicker? I don't know, and for me it isn't an issue s I can't help you there. I don't think 3 load cycles is anythign at all to be concerned about. Mnie supposedly had 10 or so, but after calibrating the first time it went back to 2. Think of it as some Chinese worker stress testing your battery for you :)

    Tom
     
  12. neilhart macrumors 6502

    neilhart

    Joined:
    Oct 11, 2007
    Location:
    SF Bay Area - Fremont
    #12
    I doubt that there is anything wrong with your battery or the system. There is the saying that a watched pot never boils ... or something like that. Anyway, if you stay in OSX and just use your machine you should be very happy with the battery performance. I am amazed at how long you can use the system when it reads less then 15% remaining. Try it. Also as others have indicated, the charge rate is not linear.

    Now I have noticed that in BootCamp Window XP the system battery performance appears to be greatly reduced. This is usually blamed on the Nvidia 9600 chip being on line at 100%... again just use the system. I have been using my UMBP sense late October for both work and play and the battery has never been an issue.

    Neil
     
  13. mikes70mustang macrumors 68000

    mikes70mustang

    Joined:
    Nov 14, 2008
    Location:
    US
    #13
    Google........................................................................................
     
  14. apersianboyCOM macrumors 6502

    Joined:
    Dec 28, 2008
    Location:
    London, UK
    #14
    mine takes about 2 hours!
    I don't think the 3 load cycles is normal... I had 3 MBP's (replacements due to faults!) and none of them had any cycles.
     
  15. hariseldon1958 macrumors newbie

    Joined:
    May 4, 2009
    #15
    Battery

    My experience with a MacBook, used mainly off the battery that battery life would decline from 3 1/2 hours to under 2. Calibration helped a bit, but mixed use , with a long period on the mains, brought things back to normal.

    I note that Apple do suggest a mix of battery and charger use and my experience suggests this helps a lot. My cycles are around 300 and it is about 14 months old. My capacity is around 90% of new. I suspect that mixed use in this fashin will cure many battery ills.
     

Share This Page