Develop Bugs

Is my phone the culprit?

So like everyone else my battery life sucks. No big deal. I bought the extended battery from Sprint, and I can see the battery diminish in front of my eyes. I mean dropping 1 percent per minute. Is there a way to test the phone to see if it is the culprit?
Sent from my PC36100

ther are lots of ways to check things. does it drop 1% a minute all the time meaning you only get 100 minutes? does it only do it when you take it off the charger at 100% where ti will drop to any where from 99-90% in a matter of minutes?
if the later then thats normal and is because the phone doesnt have a trickle charge. this means that the phone charges your battery to 100% then stops however the indicator on the phone will not change it will still show 100% once the acctual power reaches 90% the phone then charges again up to 100%. what this means is once you take your phone off the pwoer if it has been sitting there even if it says it is at 1005 it can be any where from 90-100% which the battery quickly changes to over first few minutes.
If it happens past 90% and all the time then something is wrong and you likely have at least 1 if not more apps running wild on you, you have things set to sync constantly, and you have everything under the sun turned on for your phone.
for apps the paid version of system panel is very nice for monitoring you can go to monitor top and top apps and see which apps are using the most battery/cpu.
witht he information you have given that is aobut the best i can tell you. I would not say everyone has crappy battery life with the evo as i have slowly gotten my phone set up and now with moderate usage i can get 14-15 hours and at least 8-10 with very heavy usage(stock battery) which i dont consider to be crappy battery life.

I appreciate the response, and I forgot to add that I'm running stock unrooted sense. This is not my first Android phone so I know about battery managing. I don't have everything sync every two minutes nor do I have everything turned on. It does drop rather quick even past 90 percent. I think it might be the phone it self. I doubt I got 2 bad batteries, one being extended. I'll see if I could get a device swapped out.
Sent from my PC36100

My first EVO was like that. It drained quickly shortly after charging. I could never figure it out. Till one night before going to bed, I noticed something weird about the bottom keys on the phone. They were " very dimmly " lit. The home, menu, return, search were all dimmly lit. It was I believe a defect in the phone. I got it swapped out. No problems like the 1% drain since then.

[Q] Verizon Nexus Battery percentage going up?

I have been noticing something strange. I have gotten in the habit of draining my battery down to single digits before charging in an attempt to keep my battery life up. I usually use netflix on 4g to do this as it does a pretty good job of sucking the juice down quickly.
A few times I have noticed that after I shutdown netflix and let the phone sit a little while that the percentage actually goes back up. For example, I kill netflix at 4% battery left. I set the phone down for a bit and when I pick it back up the battery is at 10%. I have seen this multiple times.
Just curious if anyone else has noticed this and anyone has an explanation for why this happens.

I believe it has to do with the battery meter displaying how much battery you have left based on what you are doing? So when you stopped being resource intensive it adjusted itself.
That's one explanation I have heard.. there is also one that has to do with the amount of current going to the battery.
Sent from my Galaxy Nexus using xda premium

trevoryour said:
I have been noticing something strange. I have gotten in the habit of draining my battery down to single digits before charging in an attempt to keep my battery life up.
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I can't answer your question directly as there could be multiple reasons. (Battery capacity estimation is tricky business, and I don't know what algorithm they're using.)
But I can tell you that the common belief that one ought to discharge batteries before recharging them is not applicable to modern lithium batteries.
I was (to some extent) true for old-fashioned NiCd cells, but modern Li-ion cells shouldn't be excessively discharged. If you want to prolong battery life it's more important to keep the battery cool. (Lithium cells degrade much faster at elevated temperatures.)
(To contradict myself I have to add that the battery capacity calculation can be improved by discharging the battery completely from time to time - but again, this depends on the battery capacity calculation algorithm they're using.)

I understand the way current battery tech works. The discharge is not for the battery itself. Its for the Android OS. I have noticed that whenever I plug my phone in in the middle of the day, the next day my battery doesn't last as long. In fact the poor battery life will remain an issue for about a week until it levels itself back out. I have noticed this behavior on multiple phones by multiple manufacturers.
You end up going in a circle. You use heavy data one day and as a result you have to plug in in the middle of the day. The next day your battery doesn't last as long so you plug in again. Unless you allow your phone enough time to level back out then it will always appear that your battery life is aweful. Since i've been discharging my battery I am able to unplug my phone at 7:30 am, use it moderately all day with GPS, Bluetooth, 4G on/wifi off with a live wallpaper running. At 11:30pm when its time for bed I still have around 60-70% battery remaining. I find myself having to watch a few hours of netflix on 4g in order to drain the battery so I can plug it in.
I'm not sure if this behavior is a result of an issue with the battery stats file or what but I do know that when I flash a new ROM it appears my battery life is reset to how it was before I had shortened it by plugging in the middle of the day.

many of us have seen the percent rise slightly, its normal. when under heavy load watching videos or something and then you are finished, the voltage gets relaxed and pops up some. since this phone uses some type of voltage calculation to determine percent, it will jump up once in a rare while, typically right after you placed it under heavy load then went to idle.
it's normal..

Battery drains faster as % is lower

I've had my Note 3 for a month now, and I noticed that after 90% the battery starts to drain a bit faster.
For example, between 100 and 90%, it takes about 6-8 minutes to drain 1% while doing something simple like using Facebook, reading an article, instant messaging, texting, etc. This is on Wi-Fi.
But as the battery goes lower and lower, it drains faster.. by the time it's in the 30s or 40s, it takes only 3-5 minutes to drain 1% while doing the same general activities. This is also on Wi-Fi. Even idle drain is faster.
By the time it gets to 20%, it's a bit faster... didn't keep track though.
Most of the times I have charged it were like this: full charge -> full drain -> full charge -> full drain.. etc
I have also tried the popular Battery Calibration app. It didn't seem to have any effect.
It is rooted, and I have frozen some bloatware (mostly some Samsung & T-Mobile apps).
I have not tried a factory reset yet.
Is this happening to anyone else? Maybe my battery is defective?

I wouldn't full drain your battery often. Try to keep it above ~20% if you can. Draining it low like that wears out the battery much quicker. Trying not to charge it to 100% helps also but that is harder to do and need a kernel that can support setting max charge.
But yes I noticed that battery does seem to drain a little bit faster after about 90%. Not a big difference though. And you shouldn't sweat it. Battery chips and batteries tend to have different characteristics from phone to phone and battery to battery to battery. Even though it should be an exact science, exact science battery chips cost a lot more. My note2 took forever to get off 100% but once it hit 99% battery drain was very consistent. Less so in note 3 but more or less consistent. Don't sweat it. I would worry more about trying not to drain your battery so low if you can. Your battery will perform best and last much longer if you can keep it between 20-80% but that is OCD. Just let it do its thing. Early android phones were terrible mostly at being accurate and consistent.
sent from my sm-9005.

Battery readings inconsistant with new battery.

Hi.
Having my Note 2 for some time now I can understand that the phone is failing in some manner. Maybe someone can answer some questions I have. I had some problems with a failing battery that eventually became bloated and chucked it out. Bought a newer third party battery but It did not work right. After that I bought a original battery and it looks as original as I can see.
When my first original battery was failing I was getting wrong percentages and sudden voltage drops as expected with a damage battery that could not hold its charge anymore. With the third party battery I still could not get it right or just did not gave it enough time to settle in.
With my newest battery still get a sudden voltage drop but then it climbs up again when I read it with a software monitor. It charged as normal to 4.3mV (100%) and then a sudden drop to 3.7mV (70%) in those fifty minutes then it climbed up again to 4.2mV but the percentage gets stuck on 69% until the mV reaches the actual percentage.. I still get several days usage out of the phone until it needs a recharge so that is not a problem. I just like things to work as they should if it is possible. Googled around but the results I read mostly went into resetting the phone, back to factory setting or wiping several things. Already tried those things.
I was just wondering the following...
- Could this be a hardware malfunction..
- Should this eventually stabilize after several charges.
- Does the voltage drop indicate a bad cell.
- Has the battery lost its full capacity since it old stock.
Maybe someone has some insight or it is just as it is and I will just accept it.
Thanks.

2% drop at time on battery gauge

Guys what the hell, why this phone and Nexus 6p drops 2% of battery pratically every time? Some users says that the fault is of Doze, and some says that is bad battery. Just answer three things
[Question 1]
This problem is a software based or hardware? And if is software, there's some how make it stop doing this? It's annoying and makes me sick with the time of usage .
[Question 2]
Why in the hell some users have this issue and some not? That's a russian roullete? Really I'm mad.
[Question 3]
Are you getting this problem? Already solved this? Suffer yet with and doesn't even know how to troubleshoot this?
GRR really. I'm mad. And seems that happens on the same percentages, 99% to 97% 95% to 93% 90% to 88% and there it go...
note: When the phone is under 60% to 100% it stay in a temperature of 35º, and you feel your phone a little hot, but when it arrives at the 50% ~ 60% down, it seems to be a little less hot, is that the processor's core being shutten down in order to give priority to the battery?
REALLY I can't understand the behavior of this phone. It's really strange, and how I never had one, I have no parameters to make any comparison.

It doesn't seem to be set at certain percentages but rather starts at where the battery is when you go there and then goes down by 2% at a time. I've never sat around and watched it before and it certainly doesn't irritate me. I have a one percent battery on my statusbar I can watch if I need something more accurate.