Battery life on MBP, is this normal?

Discussion in 'MacBook Pro' started by jmckechnie, Apr 9, 2007.

  1. jmckechnie macrumors member

    jmckechnie

    Joined:
    Nov 18, 2006
    #1
    I have a MBP and I replaced the battery probably back in October. I cycled the battery every month or so. I realized about a week ago I was only getting about an hour out of the battery. I cycled it last night and I'm only getting about an hour and 30 mins out of it. I'm not doing anything that is really taxing the computer, some light word processing and surfing the web. Do I have a case to call Apple?
     
  2. jsw Moderator emeritus

    jsw

    Joined:
    Mar 16, 2004
    Location:
    Andover, MA
    #2
    If you run Applications->Utilities->System Profiler and select Hardware->Power on the left, what does it show under "Battery Information"?

    You can copy and paste it in a post here.
     
  3. jmckechnie thread starter macrumors member

    jmckechnie

    Joined:
    Nov 18, 2006
    #3
    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 3546
    Remaining Capacity (mAh): 3478
    Amperage (mA): -1922
    Voltage (mV): 12060
    Cycle Count: 193



    Wow, the cycle charge is insane. The full charge capacity is 3546, shouldn't it be closer to 5400?
     
  4. jsw Moderator emeritus

    jsw

    Joined:
    Mar 16, 2004
    Location:
    Andover, MA
    #4
    Mine:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 5197
    Remaining Capacity (mAh): 3930
    Amperage (mA): 2200
    Voltage (mV): 12416
    Cycle Count: 107

    Yours seems a bit high - do you tend to run the battery fully down between charging it, and do you use it on battery almost constantly?
     
  5. SC68Cal macrumors 68000

    Joined:
    Feb 23, 2006
    #5
    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4894
    Remaining Capacity (mAh): 3190
    Amperage (mA): -1526
    Voltage (mV): 11427
    Cycle Count: 224
     
  6. jmckechnie thread starter macrumors member

    jmckechnie

    Joined:
    Nov 18, 2006
    #6
    I use the battery quite a bit but nothing outrageous. I never run it down to completely zero. Any thoughts on if Apple would cover it?
     
  7. Father Jack macrumors 68020

    Father Jack

    Joined:
    Jan 1, 2007
    Location:
    Ireland
    #7
    Contact them and find out for sure
     
  8. jmckechnie thread starter macrumors member

    jmckechnie

    Joined:
    Nov 18, 2006
    #8
    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 5074
    Remaining Capacity (mAh): 2412
    Amperage (mA): -2262
    Voltage (mV): 10760
    Cycle Count: 193

    What would cause the Full Charge Capacity to jump from 3546 up to 5074?
     
  9. dornoforpyros macrumors 68040

    dornoforpyros

    Joined:
    Oct 19, 2004
    Location:
    Calgary, AB
    #9
    Yes Call apple and/or bring it in. There seems to be a problem with these MBP batteries that pops up anywhere between 3-6 months of ownership. My MBP is at the shop right now waiting for a tech to tell me the battery is screwed so Apple will give me a new one.
     
  10. mantic macrumors 6502a

    Joined:
    Mar 30, 2007
    Location:
    AL
    #10
    I guess i never use my battery.

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 5464
    Remaining Capacity (mAh): 5464
    Amperage (mA): 0
    Voltage (mV): 12594
    Cycle Count: 5
     
  11. zblaxberg Guest

    zblaxberg

    Joined:
    Jan 22, 2007
    #11
    i'm almost scared to buy one for college...they are blowing up, catching fire, lasting for an hour...could it get worse?
     
  12. jmckechnie thread starter macrumors member

    jmckechnie

    Joined:
    Nov 18, 2006
    #12
    I think you see more people complaining rather than talking about the positives. Other than the battery problem that I'm having, and it's getting weirder by the minute (the computer died when the battery said more than 50% left), but it's been a really great computer. Don't be afraid to buy one.
     
  13. jmckechnie thread starter macrumors member

    jmckechnie

    Joined:
    Nov 18, 2006
    #13
    Called apple, they are sending me a replacement. :)
     
  14. dornoforpyros macrumors 68040

    dornoforpyros

    Joined:
    Oct 19, 2004
    Location:
    Calgary, AB
    #14
    Well the vast majority aren't blowing up and catching fire. In fact I'm sure the vast majority of batteries are humming a long just fine. It just seems the most common problems seem to be battery expansion, and battery death, and both seem to be popping up at around the 6 month mark.
     
  15. Jedi128 macrumors 6502

    Joined:
    Jul 7, 2005
    Location:
    New York, NY
    #15
    STOP OVERREACTING!

    I have a Macbook Pro (with Core 2 Duo) and it has worked like a dream since I've got it. If you have a problem with it, Apple will fix it, so don't be so worried about this stuff. Anything you buy has a risk of being defective. Guess what, you could get killed in a car accident, or be attacked by a wild animal, or have your house collapse on you. We take risks everyday, this is one of them......
     

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