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  1. #1


    Member Since
    Nov 22, 2006
    Posts
    33
    Power Never Gets To 100%
    Does anyone else have this problem? I have a new Macbook, and the light on the magsafe adapter turns green, but the battery percentage on the top right of my screen never shows 100%. It always hovers between 96 and 98%

    ~Dan

  2. #2


    Member Since
    Dec 23, 2006
    Location
    Iowa City, IA
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    24
    Specs:
    2.16GHz Intel Core 2 Duo, 2GB RAM, 160GB HD, 30 GB iPod Video
    Do searches on battery health. Overtime your battery will stop being able to hold full charge. This shouldn't happen quickly though, if it does it may indicate some kind of problem. I'm pretty sure this has been discussed in this forum previously

  3. #3


    Member Since
    Jan 09, 2007
    Posts
    16
    Mine gets to 100%. i think you should call apple, you might have a defective battery. Although, it might just take a while for your computer to read it correctly.

    Mine starts charging veerrrry slowly when it gets above 95%, but thats normal for recharging a lithium ion battery (to keep the battery safe).

  4. #4


    Member Since
    Nov 22, 2006
    Posts
    33
    Quote Originally Posted by evolution View Post
    Mine gets to 100%. i think you should call apple, you might have a defective battery. Although, it might just take a while for your computer to read it correctly.

    Mine starts charging veerrrry slowly when it gets above 95%, but thats normal for recharging a lithium ion battery (to keep the battery safe).
    does your little LED light turn green before your battery reads 100%?

  5. #5

    KoDorSean's Avatar
    Member Since
    Jun 03, 2006
    Location
    Denver Colorado
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    2,371
    Specs:
    2.4 GHz intel core 2 duo MBP, iPhone 5, iPad 3
    Quote Originally Posted by danimal View Post
    Does anyone else have this problem? I have a new Macbook, and the light on the magsafe adapter turns green, but the battery percentage on the top right of my screen never shows 100%. It always hovers between 96 and 98%

    ~Dan
    I have a PB and it has a new battery and I hardly ever see it get to 100%. the light does go green before it hits %100. In the last 2-3 months i have seen it at 100% maybe 2-3 times..

    I was on the M-F honor roll for month : May 2007

  6. #6

    Osiris22x's Avatar
    Member Since
    Feb 25, 2004
    Location
    Portland, OR
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    475
    Specs:
    15" MacBook Pro, 13" MacBook Black, 15" iMac G4, 24" iMac (soon!)
    This is completely normal. It is not a sign of the battery deteriorating.

    When the battery is a couple years old and doesn't hold as much of a charge, it will still show 98 to 100% when the battery is full...it will simply drain more quickly.

    My last PowerBook never went higher than 98% until I calibrated the battery (see Apple's support pages on how to do this). About 25% of all client machines I work on, also never reach 100%.
    Roger Michaels
    Apple Certified Consultant

  7. #7

    Mathiau's Avatar
    Member Since
    Jul 25, 2006
    Location
    Costa Rica
    Posts
    354
    Specs:
    MacBook Black 2ghz / 2g / 160g72k | Ipod nano black 4G
    mine was @99% for a night, then i ran on battery to just under %50, then charged and it hit %100 again.

  8. #8

    cazabam's Avatar
    Member Since
    Jun 06, 2006
    Posts
    1,153
    Specs:
    MacBook 2.0GHz White, 512MB RAM, 60GB HDD
    Calibrate your battery. Almost any strange macbook related battery problems can be fixed with a good calibration

  9. #9

    rman's Avatar
    Member Since
    Dec 24, 2002
    Location
    Los Angeles, California
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    12,584
    Specs:
    2 x 3.0GHz Quad-Core, 6GB OS X 10.6.8 | 15in MacBook Pro 2.2GHz OS X 10.6.8 | 64GB iPad 2 WiFi
    Cool
    Just unplug your system, let it get down to about 94% and plug it back in. It should then get back to 100%.

    Most systems will not start charging the battery until it gets below 94%.
    Life isn't about waiting for the storm to pass, It's about learning to dance in the rain!

  10. #10

    rpmgatech's Avatar
    Member Since
    Jan 10, 2007
    Location
    Atlanta, GA
    Posts
    90
    Specs:
    Mac Mini 2.7 GHz Intel Core i7 and a 15" MacBook Pro 2.33GHz Intel Core 2 Duo 2 GB 667Mhz DDR2 SDRAM
    My battery is new and does that sometimes also. It actually did that on one of the first few charges and I was worried. But then I plugged it in after using the battery for a while and it went to 100%. Right now it is at 99% and I am not worried because the battery still lasts long.

    What I have noticed is that if my laptop is plugged into the wall for a long time (>24 hours) it will do the 99% thing. But if I am frequently using the battery alone because of travel, it will more frequently reach 100% when charged fully. IMO it is just a quirky thing that you shouldn't worry about.

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