How long is the life of a MBP battery?

Discussion in 'MacBook Pro' started by hayzen, Sep 4, 2009.

  1. hayzen macrumors newbie

    Joined:
    Jul 18, 2008
    #1
    I bought my MBP around late 2007. I just upgraded to SL and the battery indicator had a message that says "Condition: Replace now".

    Checking for more info, it also says "Replace Now: The battery is functioning normally but holds significantly less charge than it did when it was new."

    Searching around, I came across a battery checking program named coconutBattery and it says that my original battery capacity is 5500mAh but is now 2208 mAh. (40%) So now, 40% is my maximum charge.

    My MBP is not even 2 years old. Anyone else have the same problem with their MBP battery? Is this normal?
     
  2. macjunk(ie) macrumors 6502a

    Joined:
    Aug 12, 2009
    #2
    yup..same thing here...though the battery in my MBP is at 45% !!!!
    I guess we didn't care for the battery enuf during its younger years..
     
  3. Heb1228 macrumors 68020

    Heb1228

    Joined:
    Feb 3, 2004
    Location:
    Virginia Beach, VA
    #3
    2 years is a little earlier than normal, but if you have a higher than average number of battery load cycles, that will cause your battery to wear more quickly. It should keep 80% capacity for somewhere around 300 charge cycles.
     
  4. RaceTripper macrumors 68030

    Joined:
    May 29, 2007
    #4
    My 2007 MBP was on it's second battery when I sold it. My wife's 2007 MBP is on it's third battery. We have AppleCare so never have to pay for the replacement batteries. They do go to hell.

    Now I have a mid-09 uMBP. I'm curious to see how the so called 1000 cycle battery holds up. I'll be under AppleCare if it doesn't.
     
  5. hayzen thread starter macrumors newbie

    Joined:
    Jul 18, 2008
    #5
    coconutBattery says my Battery-Loadcycles is 323 and the Age of my Mac is 24,467 months old.

    If that's true, that means my MBP came out before Christ. :p
     
  6. Heb1228 macrumors 68020

    Heb1228

    Joined:
    Feb 3, 2004
    Location:
    Virginia Beach, VA
    #6
    That's about the normal life span of a LI-ion battery. Probably time for a new one unless you want to be tied to a power adapter. It only gets worse from here.
     
  7. psingh01 macrumors 65816

    Joined:
    Apr 19, 2004
    #7
    I replaced my MBP 17" battery after 2 years. It started bulging and had very little charge life. If I recall, coconut battery said it had over 600 cycles.
     

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