MBP Battery question

Discussion in 'MacBook Pro' started by firehawk12, Feb 24, 2014.

  1. firehawk12 macrumors newbie

    Jul 23, 2011
    Has anyone heard of this issue?

    A few days ago, it looked like my battery died. The battery indicator says "Replace Now" as its condition and would basically die the moment I unplugged it. I tried resetting the SMC and all that a few times and nothing worked, so I just assumed that the battery was dead and I would have to get a new one.

    Now today, the battery is working normally and the system doesn't give that message any more (it just gives the normal time remaining). Is my battery almost dead anyway, and this is some fluke before it dies for good? Or did resetting the SMC somehow fix it?
  2. Laco macrumors 6502

    Apr 23, 2008
    How old is the battery? How many cycles do you have on it?
  3. Altemose macrumors G3


    Mar 26, 2013
    Elkton, Maryland
    Try downloading Battery Health from the Mac App Store. It will tell you how much life is left on the battery in terms of capacity, the amount of cycles, predicted times, and the age. If your battery is over 300 cycles and is dying quickly it could be failing. The reason why it came back to life is most likely that the battery cycled which extends the life a little bit. Essentially, if it is low on capacity in terms of health, get it replaced.
  4. firehawk12 thread starter macrumors newbie

    Jul 23, 2011
    Here's the information from Battery Health and System Information:


    Battery Information:

    Model Information:
    Serial Number: 9G103012WD3MA
    Manufacturer: DP
    Device Name: bq20z451
    Pack Lot Code: 0
    PCB Lot Code: 0
    Firmware Version: 201
    Hardware Revision: 2
    Cell Revision: 158
    Charge Information:
    Charge Remaining (mAh): 5171
    Fully Charged: No
    Charging: Yes
    Full Charge Capacity (mAh): 5309
    Health Information:
    Cycle Count: 202
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): 736
    Voltage (mV): 12571

    It is an oldish battery, but it doesn't have too many cycles on it.

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