Battery went up?

Discussion in 'Samsung Galaxy Nexus' started by BenLand150, Apr 4, 2012.

  1. BenLand150

    BenLand150 Premium Member
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    Alright, so just a few moments ago I had about 19% of battery left. I turned my phone off for about 5minutes and when I turned it on, I had 47% left.. Inaccurate or?

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  2. goosedeath

    goosedeath Member

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    Mine does that. It's normal. Heavy use will show a faster drain on the battery, but when you leave it be for a while they recover some.
    Drain your battery "flat" and leave it alone for a few hours, turn your phone back in and it will spring back.

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  3. dezymond

    dezymond Tech Support Mod
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    Happened to me after I put in about 45 minutes of Slingbox use. I was down to 15%, restarted and it was up to 45%.

    Agreed with goose. Heavy constant use shows a much faster (and inaccurate) battery drain.
     
  4. BenLand150

    BenLand150 Premium Member
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    Haha I've had it go up maybe 5% before after watching YouTube videos, but almost 30% percent seemed like a huge jump. Maybe I'll have to start turning my phone off for a little while more often after heavy usage to see if I get some lucky gains.

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  5. FoxKat

    FoxKat Premium Member
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    This is a known phenomenon with batteries, where heavy current draw will artificially depress voltage levels. Since the meter uses voltage as a key measure in determining remaining charge level, the temporarily lower voltage "fools" the meter into representing the charge level as lower than the resting voltage would indicate. Once the excessive load is removed or reduced, the battery is able to recover the voltage levels and the meter then adjusts accordingly.

    This is not much different than a power tool (such as a drill driver) which while using will slow down and eventually stop as the battery approaches complete discharge, but if the trigger is released for a period of time, and then depressed once again the tool suddenly wakes up again for a brief time.

    Flashlights will also demonstrate this in bulb brightness.


    Sent from my DROID RAZR using Tapatalk with voice to text translation. Please excuse minor spelling/grammar/punctuation errors.
     
  6. BenLand150

    BenLand150 Premium Member
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    I gotcha. Thanks for the replies. :)

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