Battery problem

Discussion in 'Motorola Droid 2 Global' started by mr.inter, Sep 14, 2011.

  1. mr.inter
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    mr.inter New Member

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    I am using a 3500 mAh extended battery for my D2G and battery monitor widget has been showing me 1% battery for nearly 7 hours now. The phone's stock battery reader is showing 5% for a long time as well. It's 21.40 of September 14 now, and the phone has been away from a charger since 14.15 of yesterday (September 13). Even with the extended battery I used to charge my phone every single day, but now I may have noticed why I was not getting appropriate battery life, since presently my phone is spending a lot of time on 1%. I wiped the battery stats from recovery mode and it still shows 1% (battery monitor widget) and 5% (battery manager). What can I do please?
  2. mr.inter
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    mr.inter New Member

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    I'm still on 1% and I have not turned it off at night and left it running @ 1305 mhz. I know that this is great battery life but how on earth it stays showing like this. I had already performed battery wipes after instakling GB.
  3. mr.inter
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    mr.inter New Member

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    Exactly after posting the above post from DroidForums the battery died and I spent about ten minutes trying to turn it on when connected to charger. It seems that the battery was drained that much that the it had not enough juice to power the phone back on even when connected to charger.
  4. biknut1
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    biknut1 New Member

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    Never heard of that happening! Is your charger a Moto charger? Most others won't deliver enough juice to charge the battery and run the phone. And if the battery is completely dead, I have had to wait a few minutes for it to reboot.

    Are you rooted? You might try Battery Left app (not sure which one you have) and wipe the stats again. It does a pretty good job, but you need to let it run down a few times to get it accurate.

    Hope that battery keeps on doing that for ya!
  5. Gasai Yuno
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    Gasai Yuno New Member

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    This isn't true.

    If you cut off a Motorola charger's plug and solder another one, you'll get the exact same results as with other chargers. The microUSB plug itself has a PCB built in with a resistor and a simple link between the data and power lines, that makes the phone recognise it as “stock”. TBH's “factory flashing cable” probably utilises the same circuitry built into a regular USB cable.
  6. mr.inter
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    mr.inter New Member

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    No I have an aftermarket charger which is 3-pin and made for Europe. However that is not much of a concern to me. I am rooted and have always been using Battery Monitor Widget. Do you recommend BatteryCalibration from the Market? I have it installed and am planning to use it the first time my phone reaches 100%
  7. mr.inter
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    mr.inter New Member

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    Everything seems to be ok now. I used BatteryCalibrator and wiped battery stats with CWM. Is 8% battery drop good after 3hr 55min away from charger with 30 minutes of display on?
    Last edited: Sep 15, 2011
  8. biknut1
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    biknut1 New Member

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    While I confess to not giving this answer based on scientific data, I also confess that it was delivered from personal experience and from reading many other posts to the same effect. I tried a "discount" car charger- it worked, but it couldn't keep the battery charged and run GPS and navigation. Ordered a Moto charger from Amazon- no more problems.

    I have also read many posts on this and other forums stating the same thing about wall chargers. What you say may be and probably is correct, but I don't posses that technical knowledge.
  9. Gasai Yuno
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    Gasai Yuno New Member

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    My charger's cable was worn out and the wires inside were basically disconnecting on their own unless you held the cable in a certain way. It was right where the cable enters the flexible part of the microUSB plug.

    I had to carefully disassemble the plug and found out about that small PCB inside it. It also made it possible to easily resolder the cable to the board.
  10. Nasa
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    Nasa Member

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    The 3500 battery is a lower voltage than the stock battery. I use battery left to see the voltage. I also used battery calibrator.

    Love the big battery.
    Sent with D2G GB rooted w/ GO Launcher & extended battery.
  11. mr.inter
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    mr.inter New Member

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    The same problem is happening to me again. It's spending a lot of time on 1% with me trying to drain the battery as quickest as possible by leaving the screen on at maximum brightness, wifi and flash turned on and phone @1305mhz. Yesterday it dropped from 60% to 50% at one go. I have already performed battery wipes and also used BatteryCalibration as well.
  12. mr.inter
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    mr.inter New Member

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    Update: I have used Battery Left and now it's 95% calibrated, but it's showing the same battery level as the system one when on low battery. For example when Battery Monitor Widget is 1%, the system battery level is 5%, but Battery Left shows 5% as well. The phone is still spending a long time on 1% (according to Battery Monitor Widget).

    Any help please?
  13. rubiksc00p
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    rubiksc00p Well-Known Member

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    Somewhere on this amazing ball of creation!

    There's a big difference between cheap from china and a quality one. It's not a matter of brand but quality.
    You can't assume that because a moto worked and a cheap one didn't, that the moto is the only one that will charge... That's flawed logic! : P
  14. mr.inter
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    mr.inter New Member

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    No one?
  15. rubiksc00p
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    rubiksc00p Well-Known Member

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    I'm not familiar with those apps, but some measure in 1% increments and others 5%. Battery widget monitor I believe measures in 1% but system I know does it in 5%. If battery left measures in 5% then I think you're good. If not, try resetting the stats again and letting it drain. How long is it staying at 1%?
  16. mr.inter
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    mr.inter New Member

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    It stays at 1% from about 8 to 12 hours. During this period, battery left widget reads 5%, which is the same as the system reading. The phone only supports 10% increments/decrements, however after 20%, it drops to 15%, 10% and 5%. I always let it drain and giving it a 2.5hr+ charge.
  17. Nasa
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    Nasa Member

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    The reason it does this is the the 3500 battery is a lower operating voltage than the standard battery. The way that a Li-Ion battery works, it can store more voltage than the rated voltage. When it gets down to it's operating voltage, it is a lower voltage, still enough to run on but lower than expected. It will stay this way for a long time untill it finally drains below the operating voltage at which time it will go down very quickly.

    Battery Left Pro is a good app to have. With the Pro version you can have multiple battery profiles. It has a calibration feature that works pretty well. I use the app to show voltage and it give me a better indication of what to expect. The only time I use the smaller battery is for a long trip where I dock it in my truck. I have thought about reworking the dock to accommodate the larger battery.
  18. mr.inter
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    mr.inter New Member

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    Yes I use Battery Left Pro and I have created a profile for the extended battery. It says that it's 95% calibrated.

    From where can it show the voltage? Just by going to Battery info? How can the actual voltage determine what to expect from the battery? Battery Monitor Widget shows voltage as a fluctuating graph, meaning that sometimes voltage gets lower and then it gets higher again.
    Last edited: Sep 24, 2011
  19. Nasa
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    Just let it run down to a point where it stops by itself to finish the calibration. What it still doesn't know is how far it can go, and the only thing to make that happen is to let it drain over the normal course of use.

    Are you having any problems keeping it charged and it plays out at a bad time? I run min a good 12 hours of fairly heavy use, markets, news, downloads and it usually get down to the point of I have less than 5% remaining then I get home and its going on 13 to 16, use it for mail and TV Guide and after about 18 hours I plug it in by my night stand and take it off charge when my alarm goes off.
  20. biknut1
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    biknut1 New Member

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