Help Battery Cycling Advice, Please

[djcs219]

Hi all...so I purchased my Nexus on opening day and had bad problems with the battery. I returned it and got a new one and the battery life was great. Was getting over 8 hours a day on the extended battery.

So I decide to take the plunge and root my phone. I did it, works great but it obviously factory reset my phone and now I have horrible battery life all over again, even though I thought the batteries were cycled.

Any advice on how to cycle the batteries again to get that amazing battery life back? I find it hard to believe that the root is what set it back. Thanks.

 

[jraskell]

Lithium batteries don't require any sort of cycling to increase their capacity. Worded another way, lithium batteries don't get any capacity increase as a result of any sort of cycling.

 

[hlsilver]

From my understanding, the cycling helps the battery meter give you a more accurate read on what your percentage left is. The phone has sort of a "learning curve" where the phone will slowly learn how much battery is left and how much has been used etc over time giving the battery meter more accuracy. I would assume that when you Rooted it reset everything the phone had "learned" so it will just have to relearn it.
This is just my assumption however, so I very well could be wrong.

 

[djcs219]

From my understanding, the cycling helps the battery meter give you a more accurate read on what your percentage left is. The phone has sort of a "learning curve" where the phone will slowly learn how much battery is left and how much has been used etc over time giving the battery meter more accuracy. I would assume that when you Rooted it reset everything the phone had "learned" so it will just have to relearn it.
This is just my assumption however, so I very well could be wrong.

Ugh its brutal...before I was getting the best battery life. Was loving my phone and I go and root it and I am lucky if I get 4 hours out of an extended battery. That can't be right. How can I go from 8hours+ on the extended battery before and now I am lucky to get 4?

I would appreciate any ideas. Or did anyone have any similar problems?

 

[streetfish]

just use the same battery charge all the way and run it down all the way and repeat a bunch of times, 6 or more. try charging with the phone off also. it should get better

 

[Deleted User]

You can "force" the battery cycle by doing this:

- Install Clockworkmod Recovery (root forum has instructions for this)
- Charge the phone all the way
- Reboot into Clockworkmod Recovery
- Navigate to Advanced, then select Clear Battery Stats
- Unplug, reboot, and use the phone until it shuts off

 

[Deleted User]

(When I say "use the phone" I don't mean "don't put the phone down until it shuts off." Just don't charge it until the battery has dropped so low that the phone turns off.)

 

[kylecummins]

Im getting 16+ hours on regular battery, id say somethings wrong


Try downloading batteryleft from market and calibrating/monitoring your battery

 

[trophynuts]

Im getting 16+ hours on regular battery, id say somethings wrong


Try downloading batteryleft from market and calibrating/monitoring your battery

not necessarily. Just because your getting 16+ doesn't mean other people will .



All of the battery stats is extremely subjective. What is normal use to me might be moderate use to someone else.

So just because you get a certain amount of hours of use and someone else doesn't get that. That doesn't automatically mean that something is wrong.

 

[kylecummins]

Hes getting four hours on an extended battery, seems like something is wrong.

But obviously my usage isnt as heavy as him, however even if I use my phone non-stop it will last longer then 4 hours on the stock battery.

 

[djcs219]

I think I figured it out I think. The battery needed to be calibrated. I downloaded the free battery calibration tool and so far its worked and I have my battery life like I did before.