Develop Bugs

Cell Standby Battery Life

Hi,
I'm sure this type of question has been posted here before - I've seen a lot of the posts. However, I'm having lots of trouble finding a good answer for my problem.
I'm using a Verizon Galaxy Nexus with a custom JB ROM and the latest radios. My problem seems to be that Cell Standby takes up a ton of my battery. This problem existed in ICS (stock and custom roms/kernels) and with JB (several custom roms/kernels). I've noticed if my WiFi is left on, the problem is immensely better. It's 3:20PM and I'm sitting at 87%. I'm on about 6 hours standby and that's all on WiFi, no use. If I'm on WiFi, that'll be about 60%.
It varies of course depending on what I'm doing. I've noticed that phone calls use a ton of juice and the screen obviously uses a bunch, too.
Also, it doesn't make too much of a difference if I'm running on 3G or 4G. I prefer 4G as it seems a lot more consistent in staying connected, but I've opted for 3G to keep my battery at a decent level.
OH! And the only thing I have running on my phone right now is an Exchange account, Gmail and Google Voice. Google Now is turned off.
Has anybody experienced this sort of thing? I just can't understand how the iPhone can sit idle for days and my phone can't make it past 24 hours unless it's on WiFi.
Thanks,
Jack

[Q] Sense -> GPE battery life decrease?

I converted by HTC One M8 from Sense to GPe a couple of months ago. I did not receive any issues going through the process (rooting, s-off, installing new RUU). As it happens, I liked Sense and had good battery life, but the phone was crashing a lot, slowing down to a snails pace a lot, and multiple resets did not help.
On GPE, when I loaded everything up the first time, the battery life had decreased dramatically. GSAM was after a few weeks reporting ~2.20 average screen-on time. A month later, fed up, I reset the phone again, and am now getting about 4.15 average screen-on time. Better - but still not great compared to most of the posts I see on this topic.
I have Lux installed (I much prefer darker screens anyway) and there's nothing seemingly outrageous in the battery stats in BetterBatteryStats, GSAM, or Android's own. I sync photos to G+ only when plugged in, I have GPS on to Battery Saving, etc.
The one thing that feels different between Sense and GPE is that the LTE indicator seems to show generally less signal than it did before. When I switched to GPE, I did not go in and flash a new radio; when I checked, it did have the GPE radio firmware (baseband?) version installed. Recently I happened to be in the UK, where my carrier there does not use LTE, so I switched to 3G-only - and this seemingly had no effect on the battery life. Usually, I am in downtown and and northside Chicago, and T-Mobile LTE reception is generally good here.
So my questions are:
1. Is that battery life within tolerance?
2. Should I be doing something with flashing a new radio? (I think not, but wanted to check)
3. Does re-flashing the RUU seem like a good idea? (not sure exactly how, but I know its out there on other threads)
4. Could the unit be faulty? (I would have to re-set it back to Sense if so... )
Thanks in advance for any expertise you guys can offer.

Battery with 4.4.3 worse than 4.4.2

What really upset me is that my phone was fine I was using 4.4.2 stock and had good battery life even without battery saver being on... Then I went against my ownif it ain't broke don't try to fix it principles and downloaded 4.4.3 Since then I've noticed my phone wasn't as fantastic battery wise as it used to be.. I started becoming conscious of the need to switch on power saver more often as my phone was draining much quicker than 4.4.2. For this reason I can't wait to switch over to lollipop hopefully issues will have been ironed out...without a show of a doubt 4.4.3 is not as battery efficient as 4.4.2, for my phone anyway... It's a sin that android users don't have the flexibility to roll back to previous versions as they see fit really annoying that I have to wait to the next version....I'm not a hardcore tech user so i dont have the confidence to root and all that...if I send my phone back to my phone company will they roll back to 4.4.2 for me?

Is it a carrier branded version? There are apps you can use to see what is draining your battery. Its possible if you have a carrier branded phone, that there is carrier bloatware that is causing battery drain. Try to disable sync or any apps you don't use (particularly the bloat) and see if that helps.

Have a peek at the first 4 posts in the battery help thread in my signature. If you would like help, post the recommended screen shots there. And specify you are on an M8 to avoid confusion.
There's likely an issue.... Battery life can be great on any version, depending on your usage type and setup. ?

battery on 4.on 4.4 sense is 10 times better for me than on 4.4.3 ...i just go back (because i wanted s2w...hope the new kernel source will come in next days) and again further to 4.4.4 because 4.4.3 battery is just to bad...also on original unrooted

Ok just visited the battery help thread and tried some of the suggestions...before without power saving I would get 1 percent drainage every 2-3 minutes with max brightness...now reduced brightness to auto and slider to lowest level and averaging ten minutes per 1 percent....also removed Google now....this is an improvement but didn't have to do this with 4.4.3...I think some apps are not playing nicely with 4.4.3. I hear Google is making a big effort with battery management for lollipop release...

Use an app to see what is draining the battery. Otherwise you are just guessing.
You also never answered my question whether it was carrier branded, as some carrier bloatware has been known to access the data connection frequently and kil the battery.
Hard to help, if you don't respond to suggestions and questions.

Thanks redpoint, I am on Rogers Canada, actually I was just reading that some nexus users also had battery drain issues with 4.4.3 update. One suggestion there was to disable 4g as maybe the updated modem drivers weren't as efficient as the 4.4.2 ones...going to see if I can select 3g on my HTC one m8 and see if that makes a difference...I wonder if HTC have also modified the modem drivers for their 4.4.3 update too?

mwake4goten said:
Thanks redpoint, I am on Rogers Canada, actually I was just reading that some nexus users also had battery drain issues with 4.4.3 update. One suggestion there was to disable 4g as maybe the updated modem drivers weren't as efficient as the 4.4.2 ones...going to see if I can select 3g on my HTC one m8 and see if that makes a difference...I wonder if HTC have also modified the modem drivers for their 4.4.3 update too?
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Still all guessing without the screen shots.
Gotta help us help you. I dislike guessing. ??

Update: well I just changed my device from 4g to 3g and the signal bar has instantly shot up from two bars to maximum five bars, wondering if this will make a difference to battery life? If so I can live with 3g

mwake4goten said:
Update: well I just changed my device from 4g to 3g and the signal bar has instantly shot up from two bars to maximum five bars, wondering if this will make a difference to battery life? If so I can live with 3g
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Don't like answering questions meant to help you? Weird.

Yeah? Its even worse on 4.4.4. Using the same settings, same apps, same usage patterns, my battery lasts only 10 hours. I used to get 18 hours with %25-%35 left at bedtime. Google sucks - coz, at the end of the day, the combined battery usage of Android System + Android OS + Google Play Services is more than %60!

shirreer said:
Yeah? Its even worse on 4.4.4. Using the same settings, same apps, same usage patterns, my battery lasts only 10 hours. I used to get 18 hours with %25-%35 left at bedtime. Google sucks - coz, at the end of the day, the combined battery usage of Android System + Android OS + Google Play Services is more than %60!
Click to expand...
Click to collapse
Go to the thread in my signature and fix your issues. ?

Who has problems with the battery since nougat, too?

Since I have updated on nougat, my battery quickly goes empty.
I reach a maximum of 2 hours SOT.
According to "BetterBatteryStats", the operating system consumes the most energy.
No matter whether Stock Rom or currently with "PureNexus" and ElementalX Kernel with GhostPepper profile, the battery is still very fast empty.
I also wonder what the Wakelock *job delay* and *job deadline* mean.
Now is the question, do you have the problems since nougat, too.
And is the problem the operating system or rather the battery, what do you have for experiences?
With marshmallow I had up to 5 hours SOT, therefore I will downgrade.
Whether it will be better, I will report.

im finding that when my WLAN is off then my drain is negligible. Whilst with it on i see a steady drain overnight.
That might be how i have my phone setup, but not sure.
I now have tasker setup to disable wifi, location, data and swap to 2g at night (i have terrible 3g/4g reception in my bedroom). it seems to help for overnight drain but not daily usage.

I have never had good battery life with this phone, by the end of the day it is usually almost dead with only about 1.5 hours of actual use.

I have the same feeling.
If you confirm that downgrading solve the problem, I will try the same.
Thanks!

Battery has been fine for me. Your phone is never idling properly from the looks of it, despite not being show an awake. Not sure what that means though.
Is there some issue with your WiFi or data signal? I've not seen the WiFi X myself.

Downgrade successfully installed
bblzd said:
Battery has been fine for me. Your phone is never idling properly from the looks of it, despite not being show an awake. Not sure what that means though.
Is there some issue with your WiFi or data signal? I've not seen the WiFi X myself.
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Click to collapse
I have not changed my settings so far, only slight improvements, which I have since I own the smartphone.
Mobile Data always to max 3g (have no LTE contract), GPS always on (only device), Wifi also always on and could reach thereby also up to 5 hours SOT.
Then I moved from the Google Stock Rom to PureNexus hoping it would help, well, wrongly thought.
And I have always done a clean installation. :silly:
I've been back for a day now on the last Marshmallow Rom (MTC20K) and I do not want to be too rash, but it seems to improve. :laugh:
I will continue to observe and report.

Battery problems?

I know, our device has really great battery life and I don't have anything to complain about that, but a friend of mine just got himself a new phone and his values make me a bit jealous and most of all: surprised and stunned.
He got himself a Xiaomi Redmi Note 4 (SD 625 variant, MKT variant really sucks), it has the same processor, same display and not even 700 mAh more (4100 mAh) and he got with some "dev rom" (made by Xiaomi, seems to just be the beta of that ugly MIUI 9, based on Andorid 7.0) 6h of SOT, doze seems to haven't really kicked in in that time. in their forum in the SOT thread I see people getting normally about 8-10 with up to over 12 h of SOT, most of them on stock ROM without any additions. And I'm quite irritated about that huge of a difference with not that much more battery. And he seems quite convinced that it's not on the cost of performance, you should notice that quickly on such a heavily skinned ROM.
Now my question is: how in hell is that even possible? I mean our devices seem quite comparablewith just a slight bump in battery but near-stock AOSP Android against pretty much an iOS clone. Does anyone have any idea what could cause that big of a difference? And if it's software based could that be done on our device? Because my experience and from different posts our device lasts about 5-6 h normally.
I mean I'm already lucky about my 2 days of usage with up to about 2.5 days on some weekends where I have a lot of stuff to do. But I wouldn't mind a bit of extra. But my biggest problem with that is as simple as: how? I could really use some explaination right now...

I don't have issues with device.. stock 7.1.1 with dec.patch, unlocked bootloader, with latest magisk. Also installed greenify.

Then you are one of very rare cases. My experience is about half of that.
And I also meant on stock ROM, without any modifications. So I don't know which apps you greenified, but that was not the point. I use Greenify too but more for apps that aren't supposed to run constantly in background when I only use it very seldomly.

The norm for this phone is 8+ hours SOT. Sometimes I get 10 and a few have had up to 12. Unless you're gaming 8 should be easy. 5 hours means something is wrong with your phone hardware, you have a rogue battery eating app or you're gaming. I rarely charge my phone over the weekend even when I use it a lot.

Well, neither of that is the case and I rarely see people claiming more than 6h of SOT

So the answer to your question is, it's the wrong question. The question should be, why does my battery not last very long and what apps or usage causes me to have such poor battery life? Compared to the Redmi Note 4 the Z Play is exactly where it should be.
Here's a link to the SOT thread: https://forum.xda-developers.com/moto-z-play/review/screen-time-t3643959
gsmarena battery life test 100h endurance rating: https://www.gsmarena.com/battery-test.php3?idPhone=8310#show
Here's an app to help diagnose battery condition (Accubattery): https://play.google.com/store/apps/details?id=com.digibites.accubattery&hl=en
also betterbatterystats is really helpful.
I sincerely hope you get it sorted out!

Well, gsam isn't detecting any app that's off even with root so I don't think there is any. I installed that AccuBattery app, let's see what it has to say

Removed because of ****ty q&a system...

Oh, and another thing I noticed: I get very randomly reboots, and every time the battery percentage drops massively. Just had a 30% drop. And after the reboot the battery percentage seems like frozen. Now I rebooted and plugged in the cable and got 44% again... No fast charging. Do that detection seems very off
Motorola forum isn't helpful at all. Clearing cache and dalvik didn't change anything and running around for a week in secure mode (that's how random they mostly are) or even doing a factory reset without restoring apps is out of question for obvious reasons.

That's pretty weird. Did you try a factory reset and after restore your apps? There's not a lot you can do if you're not rooted, but you shouldn't need to do much anyway on stock rom.
Only other option is full RSD lite OS restore as a last resort.

I am rooted for long, that's why I use Greenify. I know it also works without but then it's a joke. As RSD lite is, it just refuses for everyone to detect anything on Windows 10.
Factory reset is out of question for the moment, it takes way too long to do it properly (with titanium and NANDroid backup first) and I won't have that much time probably for the whole of this month. Otherwise I would most likely already have went off to the next best custom ROM since Motorola just can't get their **** together and still work on 8.0 in test for 2.5 month with searching testers for another one.
I think the next thing I'll do is to try the good old battery calibration, just have to find the file storing the statistics. I know many say that won't work but that's rubbish, it worked for me already a few times

Update: no, no change. Don't know if that funky battery percentage bug on random reboots still happen since I haven't had any again yet, but they come too random and unpredictable.
And that AccuBattery just proves to be worthless. It tries to estimate the rest capacity, but then it even fails to detect original capacity by 500 mAh. The battery sucker stats are also unrealistic. It puts chrome first with 10%, while GSam with root puts it 5th at 4.6% after kernel, Spotify, Android system and fight services. Android itself even puts it 9th with screen, phone idle, cell standby, Android OS and Bluetooth in-between.
So let's see what happens first. Motorola releasing 8.0, which I will flash through the .xml.zip, this time using flashfile.xml which should force a factory reset... Or me finding the time to switch to a custom ROM
Edit: so I got another one, bit this time no crazy battery drop. But the other times I killed of the soft reboot sequence because Magisk can have some problems with that. This time I didn't

Yesterday I was finally able to do the factory reset since those darn random reboots became too annoying and Moto's support is had just the most ridiculous ideas... In the worst way.
Either way, now OTA looks better, let's see how it will turn out in the next days