Battery drains overnight when not plugged in

Discussion in 'Apple Watch' started by Advil, Jul 11, 2015.

  1. Advil macrumors 6502a

    Oct 4, 2008
    Charged my watch to 100% and took it off the charger to keep next to my bed. Woke up with it at 86%... very strange considering I get great battery life throughout the day when it's actually on.

    Anyone else?
  2. BlueMoon63 macrumors 68020

    Mar 30, 2015
    My 42mm drains about 1% per hour at night. Almost always wake up to 93-94% after 7 hours. If I see below 90%, I restart the watch that morning and the next night it is back to 93-94%.
  3. rockyromero macrumors 6502


    Jul 11, 2015
    It still seems like a minor discharge resolved by putting the AW on the charger for about 10 minutes.

    For me, it's easier to leave it on the charger or put it on my wrist at night.

  4. EarthDawn macrumors 6502a


    Feb 18, 2008
    Long-eye Land, NY
    I have the same thing happen ...

    Wear it 12 hours and have 62% left... left on my dresser unplugged after a full charge and when I get up 7 hours later it will be at 90%. AND I have my watch "Do not disturb" set.
  5. Julien macrumors G4


    Jun 30, 2007
    The :apple:Watch must still still poll the iPhone since it is a dependent device. Why not just move the charger next to you bead? Don't you charge you iPhone there?
  6. Gav2k macrumors G3


    Jul 24, 2009
    Why not just leave it on the charger?
  7. teidon macrumors 6502


    Dec 22, 2009
    When locked the watch will still maintain it's connection to iPhone (or will look for it if not connected) and it also keeps reading the accelerometer. Which is sort a good thing because you might put it on your wrist but not bother to unlock it but still want it to track your fitness.

    In case you have not calibrated the battery meter it's possible that it's giving wrong numbers. Just let the battery drain so that the watch goes automatically to power saving mode and recharge it fully. I'm not sure what the exact method to properly calibrate the watch's battery meter is but doing that seemed to give me slightly better numbers. (just remember that there's no need to calibrate the battery meter - the battery will function just fine without - and there's no point calibrating it more often than once a month or so and it's even slightly harmful for the battery to let it drain too low.)
  8. dfine1966 macrumors 6502

    Apr 9, 2011
    You could also shut it off at night and turn it on in the morning. No drain at all.

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7 July 11, 2015