Calibrate Battery?

Discussion in 'Smartphone Battery Discussion' started by Kobe24, Jun 12, 2012.

  1. Kobe24

    Kobe24 Member

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    Do this need to be done for phone to read battery stats correctly & can I do this without rooting?
     
  2. 94lt1

    94lt1 Super Moderator
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    Are you running an extended battery? Or the stock battery?

    DROID RAZR MAXXIMIZED!!!! PREPARE TO BE VANQUISHED!!!
     
  3. Kobe24

    Kobe24 Member

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    Extended
     
  4. aaf709

    aaf709 Nice Guy
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    FoxKat recommends to completely charge with phone off. Then run it until it says to charge (about 15%) and charge again with the phone off.

    Sent from my DROID BIONIC using Droid Forums
     
    #4 aaf709, Jun 13, 2012
    Last edited: Jun 13, 2012
  5. Camoxjeep

    Camoxjeep Member

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    Ive tried a few calibration apps with an extended battery 4000mh and to no success it wont calibrate. But I know now I can go around 30 hours or so on a full charge. Even after the first 6 hours it says 1% battery left:p
     
  6. FoxKat

    FoxKat Super Moderator
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    Calibration apps aren't going to give the metering system what it needs to determine the battery's maximum and minimum voltages so it can properly gauge what the interim levels are. You need to "show" the meter by letting it read those levels right from the battery.

    Since every battery has a unique signature and unique maximum capacity the only way the charging system can possibly know is by witnessing the battery in action. The only way to do that is by charging to 100% with power off followed by discharging to 15% (10% with Jelly Bean). The subsequent charge to 100% confirms the full range to the meter and locks the range in its data store to recall from for future level calculations.

    Sent from my Droid RAZR MAXX using Tapatalk 2 with voice to text translation. Please pardon minor errors.
     
    #6 FoxKat, Jun 13, 2012
    Last edited: Jun 22, 2013
  7. josh1980

    josh1980 Member

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    I had a pretty accurate battery meter until I installed my new Motorola Extended Battery. I haven't been able to get a "good calibration" from the battery despite trying to calibrate the battery. I tried using the calibration tool and charged and discharged my phone and despite a month or so of use it still seems to jump around. Even tonight, if I look at my battery monitoring app the charge is slow and steady, then jumped 9% in 1 minute. Go figure. It's not that big of a deal(aside from the fact that I want it to be accurate) since the battery lasts so long that I haven't had the battery get critically low.
     
  8. TOMMYBOT

    TOMMYBOT Active Member

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    Im having this problem with my bionic 4000 extended battery. Gone through so many cycles going to completely dead battery or just about hour before it dies but it still wont seem to calibrate

    Sent from my DROID BIONIC using Tapatalk 2
     
  9. 94lt1

    94lt1 Super Moderator
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    What he^^^ said :)

    DROID RAZR MAXXIMIZED!!!! PREPARE TO BE VANQUISHED!!!
     
  10. josh1980

    josh1980 Member

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    I've done exactly what Foxkat says. I did alot of forum reading and stuff before I jumped into the realm of battery calibration. Still have an odd battery meter. I am rooted and I did use one of those "battery calibration" programs to wipe the old battery parameters. I can tell from using both of the batteries that my standard battery had a 100% charge of 4.351v and the extended is only 4.201v. So there are slight differences between batteries.

    Anyway, I may try doing a calibration again just to see if I can get better luck the second time.
     
  11. aaf709

    aaf709 Nice Guy
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    It seems that the best extended battery for the Bionic is the one made by Motorola in that the software plays nicely with it. I use the Bada$$ Battery Monitor (substitute 'ss' for '$$') as FoxKat recommends and it's accurate with the Motorola extended battery.

    When I had my OG Droid, I had a Seidio extended battery. No app would give a real reading, even Battery Left, which had a setting for the Seidio. In the end I used the Battery Left widget, but as it could give 3 lines of information, I put Voltage on top. I knew that if it was 4200mv it was charged and around 3500mv it was time to find a charger.
     
    #11 aaf709, Jun 13, 2012
    Last edited: Jun 13, 2012
  12. nikecar

    nikecar Active Member

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    why not let it drain all the way instead of 15%?
     
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