My battery life time indicator is all over the place!

Discussion in 'MacBook' started by Vikinguy, Jan 25, 2009.

  1. Vikinguy macrumors 6502

    Joined:
    Sep 19, 2007
    #1
    I've had my unibody 2.0 since November. It's always said 5 hours or so when i open it up fully charged. This week it's started fluctuating wildy. While typing this post it's gone from 3 hours 23 mins to 4 hours and five mins....it started at 2 hours....now it's up to 4...very odd.


    Any ideas on why this has started happening all of the sudden?
     
  2. 5280m macrumors member

    Joined:
    Jan 16, 2009
    #2
    When is the last time you calibrated your battery?
     
  3. eXan macrumors 601

    eXan

    Joined:
    Jan 10, 2005
    Location:
    Russia
    #3
    It adjusts the time remaining number according to current load on the machine.

    Say, you opened it up and went browsing the web, the number will be 4-5 hours. But then you loaded up a DVD and started ripping it with Handbrake (100% CPU usage) and the number will drop to 1.5-2 hours. But you stopped after a couple of minutes and went back to browsing, so the number will be 4-4.5 hours again.

    I hope I make sense :(
     
  4. Vikinguy thread starter macrumors 6502

    Joined:
    Sep 19, 2007
    #4
    It makes perfect sense..it's just behaving differently than it has in the past.
     

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