Sleep issues when battery runs out.

Discussion in 'MacBook Air' started by nylon, Feb 11, 2011.

  1. macrumors 6502a


    Oct 26, 2004
    Over the last month I have started to notice that when the battery runs out on my 13" MBA (latest iteration) the computer completely dies instead of going into the deep sleep state.

    When I restart the machine it boots as if I had shut down the machine. The clock and date are put back to some random date in the past and machine cannot remember the wifi password which I have to reenter and save.

    I have reset the PRAM and NVRAM (command + option + PR) as advised through the support document to no avail.

    This is a now a reproducible problem that occurs every-time the machine runs out of battery.

    My understanding was that when the MBA has its battery drained from normal use it is simply meant to enter a deep sleep state and not completely die.

    Is anybody else facing this issue?
  2. macrumors Westmere


    May 16, 2008
    PRAM/NVRAM has nothing to do with power, batteries or charging. You need to reset the SMC, instead. See the CHARGING section of the FAQ below.

    This should answer most, if not all, of your battery questions:

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