Trouble calibrating replacement MacBook battery

Discussion in 'MacBook' started by MattBaker, Aug 15, 2009.

  1. MattBaker macrumors member

    Jun 28, 2008
    I just bought a replacement battery for my two-year-old MacBook. I can't get my computer to charge it beyond 75%... what am I doing wrong?

    I've done three complete cycles of charging 24 hours, then discharging completely, then charging again.

    I just finished a 36 hour recharge with the computer turned off. Now I'm looking at Coconut Battery, which says:

    Current Battery charge: 3890 mAh
    Maximum Battery Charge: 5344 mAh
    Current Battery Capacity: 5344 mAh
    Original Battery Capacity: 5600 mAh
    Battery Load-Cycle: 4
    Age of your Mac: 28 months
    Charger connected: Yes
    Battery is charging: No

    What's the trick to get this thing fully charged?

  2. jackiecanev2 macrumors 65816


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

    No trick. I'd take it back and get a replacement.
  3. NewMacbookPlz macrumors 68040


    Sep 28, 2008
    It appears borked.

    Time to replace the replacement...

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