MBP resets date and time when battery runs out

Discussion in 'MacBook Pro' started by weenerdog, Jun 14, 2011.

  1. weenerdog macrumors member

    Dec 4, 2007
    Everytime the battery runs out while using my MBP (I have a habit of ignoring the reserve battery warning) it switches off completely - doesn't hibernate or anything - and when I turn it on again it sets my date to "1st Jan 2001" and forgets my wifi password.

    Does this happen to anyone else? Why doesn't it recover my work like other MBP's i've seen?
  2. farmbois macrumors newbie


    Mar 6, 2009
    Blackbutt, Australia
    Mine has started doing the same.. I posted about it this morning... however your post makes more sense... i tend to ramble.. ;o)
  3. deadwulfe macrumors 6502a


    Feb 18, 2010
    People have come here asking the same question over and over. You could find your answer with searching these forums or by reading through the Apple Notebook Battery FAQ.

    Either way, you need to calibrate your battery, because your notebooks do not have enough power to go into hibernation when it thinks it does.

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