Battery life

Discussion in 'Motorola Droid' started by joshoid, Jan 8, 2011.

  1. Art Vandelay

    Art Vandelay Member

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    I have similar problems with mine. Running the standard kernal that is packaged with the rom. I also notices that from 15% to shut down takes an extremely long time. It goes to 40 pretty quick, but 15-0 takes like 3 times as long.

    I used the battery calibration app but didn't seem to help.

    Also, my phone seems to charge extremely quick when at 40% or more. I think I may need a new battery as it's 1.5 years old now.

    Sent from my Droid using DroidForums
     
  2. redoregon

    redoregon Member

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    Note we're not talking about an *app* here, but rather booting into recovery and wiping battery stats from there. You do it either after a full battery drain and before recharging to 100%, or after a full battery drain then charging back *up* to 100%... I forget which.
     
  3. 1FZFE

    1FZFE Member

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    Full charge, wipe stats, drain to dead, fully charge again.

    I would probably drain to dead again for full measure, but it might not be necessary. After this you should see improved battery reporting. If you are clearing stats in a program other than recovery, you should reboot after clearing.
     
  4. redoregon

    redoregon Member

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    There you go... that's what I was after! Thanks for translating my gobbledegook! :clap:
     
  5. haxerpaylay

    haxerpaylay Member

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    I reset battery stats on almost every flash, on a full battery. Still I have not noticed any difference. I have also charged to full and drained dead makes no difference. :/

    Maybe its because my battery is old, its a over a year old and used heavily.

    Moto Droid / S.S. 5.2
     
  6. 1FZFE

    1FZFE Member

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    It may be the battery age. I do not routinely wipe my stats separately with rom installation. I just make sure to have a full charge before flashing. It does not seem like it would matter either way though; that is assuming the battery stats are wiped with a system format, which I assume is correct. Can anyone confirm?

    Some folks early in the CM7 builds (months ago) were having similar issues with gaps at the 40% to 20% range that did not respond to the normal battery stat fixes. This may be similar, but the large jumps I have experienced in the past, ie 60% to 20% in 1 second, were solved with a battery stat wipe.

    As usual it seems each individual device responds uniquely to our constant fiddling :)

    Edit: Stats are located in the system data files and are cleared every time you format the system.
     
  7. Bang Pow Boom

    Bang Pow Boom Member

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    I had the same problem today .............80% to 20% in 10 minutes.

    To wipe battery stats do you go into recovery (RaidZero) / wipe /
    wipe battery stats?

    Sent from my Droid using DroidForums
     
  8. 1FZFE

    1FZFE Member

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    Not sure. I don't use raidzero's recovery, but sounds reasonable :) In clockworkmod its under advanced options.

    Sent from my Droid using Tapatalk
     
  9. redoregon

    redoregon Member

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    I use RZ, and yes, that's it.

    Sent from my Droid using DroidForums
     
  10. angrymexican

    angrymexican New Member

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    Hey I was suffering the same battery issues with my phone as well and then I figured I would turn off the jit option off under Chevy tools and Viola my battery life has gotten better and my phone has sped up immensely and I am running the stock kernel. so give that a try it might help!

    Sent from my Droid using DroidForums App
     
  11. zoomy942

    zoomy942 Member

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    Hmm. Jit affects battery life?
     
  12. Ma_USMC

    Ma_USMC Member

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    Wiped battery stats and in the draining phase. Curiously, what does one sacrifice by disabling the JIT compiler?
     
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