MacBook Pro Dies when power disconnected.

Discussion in 'MacBook Pro' started by WetcoastBob, Sep 15, 2007.

  1. WetcoastBob macrumors newbie

    Joined:
    Sep 15, 2007
    Location:
    Saltspring Island, Canada
    #1
    My MacB00k Pro powers down immediately when I remover the power plug. If I put it to sleep and then disconnect the power cord it remains in sleep mode. The second I open the lid it starts to wake up and then dies.
    This is an early MBP (18 mo. old) with a battery replacement on guarantee as part of the overheating-battery recall August ‘06.
    When I last used it with a battery (3 days ago) it ran for 1 3/4 hrs on a charge. The battery charges to 98-100%. The battery is now at 98%. (was at 100 before I unplugged the power) CocoanutBattery says - current charge: 3563 mAh, maximum battery charge 3623 mAh.
    Current battery capacity: 3623 mAh, original battery capacity: 5500 mAh so current capacity is 65% which figures with my last session using the battery. Battery-loadcycles is 14 and the MBP registers that it is charging.
    Do I need a new battery or is there something else wrong?

    Cheers:
    Bob
     
  2. WetcoastBob thread starter macrumors newbie

    Joined:
    Sep 15, 2007
    Location:
    Saltspring Island, Canada
    #3
    Guess What?

    So after posting this I got an idea and pulled the plug of the charger out of the wall. Guess what? No shut-down. It just started to work with the battery. I then pulled the Magsafe plug out and it continued to work just fine on the battery.
    So now I check with CoconutBattery--
    Current Battery Charge: 4317
    Max…… 4531
    Current Capacity: 4531
    Original….. 5500
    82%
    Loadcycles still 450

    Does anyone have any ideas?
    Cheers:
    Bob
     
  3. ale500 macrumors regular

    Joined:
    Jul 9, 2007
    #4
    your loadcycles where not 14 ?... :confused:

    Something is wrong with that battery... it is detected just before you pull the plug and it shuts down ?...
     
  4. WetcoastBob thread starter macrumors newbie

    Joined:
    Sep 15, 2007
    Location:
    Saltspring Island, Canada
    #5
    Typo

    In my first post the battery load cycles should read 450. (Four hundred fifty). Since the second posting I have shut the MBP down and disconnected the power supply as I was leaving home and I never leave a charger charging when I am away. Six hours later I try to power up using only the battery.... Nothing. I have performed an SMC reset but it has made no difference. Once powered up with the charger plugged in I still have 99% (4506 mAh) charge. Pull the plug and she dies!
    Cheers:
    Bob
     
  5. cmoone macrumors newbie

    Joined:
    Sep 27, 2007
    #6
    Did you ever get this resolved? Mine was doing this until today--I found this thread, followed the link to reset the SMC, pulled out my macbook pro, and lo and behold--it suddenly worked fine (before I even tried the reset).

    I was curious, though, in case it starts up again. I'm about to travel overseas, and I don't want it to freak out again while I'm gone...
     

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