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Thread: How do I reset/retrain my battery?

  1. Droid Newbie
    ModusPwnens's Avatar
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    #1

    How do I reset/retrain my battery?

    Hi. I didn't condition my battery properly like many people here are saying (i.e. charge it to full, then run it down once, then charge it all the way to full again with no interruption). Is there anyway to do that process now without restoring to factory defaults or do you have to do it when the phone is fresh?
  2. Developer Relations
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    #2
    Nah, no factory reset needed - just charge it and run it down, personally I charge my phone all night every night and I do a good job of running it down throughout the day

  3. Master Droid
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    #3
    I've been reading other post on other sites and there is inconsistent information as far as the need to "train" or calibrate the battery or operating system. Personally I would not recommend doing any kind of factory reset just to train a battery. Instead, why don't you just reboot it doing the power + down volume buttons for 10 seconds. This will not reset anything. Then charge the phone all the way up, and then run it all the way down ... if you feel you have to.

    Personally, I don't think any of these little battery training drills we perform do anything positive for the phone. If it was that crucial to getting Max battery life, these instructions would have been included in the manual. What manufacturer would intentionally leave out critical info on training your battery and then risk having all its customers complain about bad battery life? They wouldn't. They would have it in some kind of Black Box warning in the front of the manual.

    I suspect these battery training exercises are little more than a placebo effect. But hey, do it anyway. Placebos can't hurt.

    Sent from my DROID RAZR using Tapatalk
  4. Super Moderator
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    #4
    Quote Originally Posted by ModusPwnens View Post
    Hi. I didn't condition my battery properly like many people here are saying (i.e. charge it to full, then run it down once, then charge it all the way to full again with no interruption). Is there anyway to do that process now without restoring to factory defaults or do you have to do it when the phone is fresh?
    As Deron posted above, there is no credibility to the claims of "training" the battery. These Li batteries are equipped either internally or through circuitry in the phone or in the charger, to monitor the charging and discharging rates, the peak or maximum charge voltages and the minimum drain voltages, and there is absolutely NO benefit to the "training" exercises being tossed around here. In fact, it is well documented that these Lithium Ion (and Ion Polymer) batteries actually "prefer" (read perform better) to be charged in shorter interim charges multiple times daily rather than fully charging and fully draining.

    All this discussion about "training", "calibrating" (better known as "conditioning") comes from the other rechargeable batteries, namely Nickel Cadmium batteries. These older (or let's say earlier technologies of) batteries had a characteristic known as "memory" where if the battery was repeatedly fully charged, and then only partially charged, eventually the battery would lose the capacity it had originally and would begin demonstrating the ability to only hold the amount of power that was being used each cycle. So, if you only used 50% daily with each recharge to 100%, eventually the battery would only HOLD 50% of its original capacity.

    To alleviate this "memory" it was said that in some cases the battery could be re-conditioned by draining it to completely dead, then charging fully and repeating several times. It would often revive a battery that seemed to have lost its ability to hold a charge. This was caused by crystals (dendrites) that would build up on the plates inside the battery and effectively block the electrons from being able to affix themselves to the plates. Eventually technology was designed that pulsed the battery with high voltages repeatedly for short bursts which effectively broke up the crystals and returned the battery to near its full capacity.

    If you really want to educate yourself, go to Memory: Myth or Fact? – Battery University.

    Now, Lithium Ion batteries work much differently than either NiCad or NiMH batteries. Again, some great information can be found at Charging Lithium-Ion Batteries. There you will find that to properly charge a Li battery, you need very sophisticated equipment which is now incorporated in the batteries or in combination with the equipment they power or the charger itself. What I am saying in a nutshell is to simply use and charge as your lifestyle dictates and pay no attention to the ideas tossed around about "training" your battery. Again as Deron said, if the battery required such training, it would be in the user's guide and it would be explicit.
    Last edited by FoxKat; 02-20-2012 at 12:37 PM.
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  5. Droid Ninja
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    #5
    FoxKat, Thank you for such an informative post. My husband is big into RC helicopters and has had numerous battery discussions with engineers and others and says exactly what you have said. The worst thing you can do for these types of batteries is run them down. Given all the controversy about the RAZR not having a removable battery and if people should avoid it for that reason, I would think Motorola would be out in front of this issue with good advice before poor advice causes poor performance and then poor reviews of the phone.

    Thanks for taking the time to not only say what you think, but back it up with solid references. Hopefully you have saved some people from a bad experience.
    FoxKat likes this.
  6. Senior Droid
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    #6
    The only reason to run your battery to 10% is to get the smart actions to kick them selfs in i have one that if it goes below 10% almost everything shuts off
    Yeah... so what if I am a country boy? Ill take whine over beer.... but i prefer Jack or Jim id take either of them over the others... so what just cause i wear boots doesn't mean i don't listen to rock and metal... and yes i live on a farm and own a tractor bigger than my truck (: got a prob?
  7. Droid Ninja
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    #7
    Quote Originally Posted by satarecah View Post
    The only reason to run your battery to 10% is to get the smart actions to kick them selfs in i have one that if it goes below 10% almost everything shuts off
    I would change the smart action. From what I've heard running it that low is not good for it. I have mine set to 25%.
  8. Master Droid
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    #8
    Quote Originally Posted by SallyC View Post
    I would change the smart action. From what I've heard running it that low is not good for it. I have mine set to 25%.
    +1 here. I don't allow my battery go that low either. From what I understood the operating system does a pretty good job of controlling itself and where it needs to conserve juice. I've never calibrated my battery on these cuz it wears down the battery over all then you get posters on here complaining there battery life sucks and had to get a replacement one cuz its discharging all weird. I plug in when needed, always have. Battery draining till it shuts off what the hell for?! I did it the first time I got my Og. Droid1cuz people said to do it and I did it for a while but didn't see any real benefit of it honestly, wasn't till I rooted and installed setcpu till I saw actual change but that was done by me o/c and u/c not calibrating it. Just saying.

    Sent from my DROID RAZR
    Last edited by bullswife98; 12-09-2011 at 07:59 AM.
  9. Rescue Squad
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    #9
    Another for not draining your battery below 20% or so can be bad for these lithium batteries, and there is no reason to "train" the battery it does nothing.
  10. Droid Newbie
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    #10

    FNG to Verizon and Droid

    Hello everyone. I'm very appreciative to this forum...specifically this thread. I've had my Droid RAZR for about a week now and recently experienced a problem with power for the phone. This thread may explain some of what I was experiencing the other day. I had let me phone battery drop below 10%. I then let the phone charge overnight and when trying to poweron the next morning, the phone refused to poweron. I tried different outlets (pretty much all the outlets in my house with working connected devices) and the charger in my car; all no joy in getting the phone to poweron. At that point, I had pretty much called the phone a paper weight and contacted Verizon for replacement. Customer service pretty much asked the basic - Had I tried powering on the device while connected to the outlet; my reply was yes. Later that night, I plugged the phone back into the outlet and the system logo displayed and the phone began charging (showed below 10%). I then tried all the same outlets I initially tried charging the phone with....all worked. So I was baffled at this point. I decided to keep the phone and monitor it. So today, I noticed a problem similar. I had not charged my phone overnight, but my battery was about 35-45%. And again, I could not poweron my phone. I tried plugging it into to several outlets within my house and nothing -- no display, no led indicators. So I changed the socket for the usb power adapter, reseated the power adapter into the outlet, disconnect & reconnected end for phone -- all no joy!! I repeated this process and the bugger finally displays with the red eye and shows 0% battery consumption. I have checked to see if apps or resources are hogging the battery and nothing appears to be doing so. I have used Netflix in both instances where it won't power on the next day, as well as GPS. I have checked to make sure they are not running in the background. This all appears to be too suspicious and quirky. So I'm going to continue to monitor this battery consumption as a lead for now. I will keep everyone posted.
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