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Battery life is something that definitely concerns everyone.
Lately we've been seeing a considerable increase in the number of tips, tweaks, and some apps to improve battery life in our nexus phones.
New modded kernels are also starting to pop up since kmobs released his UV one, followed by psyq's and insectRaven's, among others. I've even read comments about having 70% battery power after about 15 hours of use with AVS! Damn, what's your secret you people?
As well as undervolting, AVS, and other kernel-based configs, people are also starting to talk about how each ROM optimizes battery use. Some claim Emmother has better results than CM. Some are just fine with CM.
There have also been several comments about slow charging being better than fast 1A charging.
So, to join all these things together, I've created this post to see how much battery are YOU getting and what's your setup. Hopefully, we can all benefit from the information that's collected here once it gets going.
Please post in a clear and organized manner so we can all get some useful info out of this thread. I encourage you to follow this way of posting your info:
ROM: Whatever ROM you're using.
Kernel: Whatever kernel you're using (please be specific about extra features it may include)
System & software related:Widgets: Any widgets you've got that you think have certain influence on battery life.
Background: Any apps you've got running on background.
Connectivity: 3G signal + strengths or weaknesses / Wifi / Bluetooth.
Sync enabled?: Pretty self explanatory.
GPS & navigation: What software do you use for navigation.
Others: Screen brightness, display % usage, etc..
Battery-related:Battery model: HTC stock, ebay, whatever...
Charging method: What kind of charger are you using?
Extra info: Voltage, temp, and any other info worth providing.
Overall phone use: (Time-wise)
Internet (Browsing): How much time you spend *JUST* on your browser.
Internet (General): IM, VoIP, streaming... Basically any app you frequently use that requires connection.
Calling: Approximate total time per charge.
GPS & navigation: Do you use it frequently? If so, how much.
Games: Which games and for how long do you usually play.
Other: Any apps you may want to point out.
Battery life & impressions:
Here is where the real, but somewhat subjective, talk comes in. Just post what battery life you're getting with the info you've just provided and what are your concerns and impressions regarding this. This is the place to comment in more detail about anything you may have posted above and want to clarify or drive special attention to.
Click to expand...
Click to collapse
Template available here.
Leave whatever you don't want to post blank, but please be as specific and objective as you can on what you do post. Also, feel free to add any category with info you think is worth it. If you think there's something that I left out and should be there (which is very likely I have) please don't hesitate to tell me and I'll add it as soon as I read it.
I really hope we can all share some info and clear out all the secrets regarding mysterious claims for battery life I've seen around lately. For this to work I urge you once again to post in a clear and organized manner. There's quite a lot of information and it'll be much easier to find, compare, and comment on.
Thanks in advance for your participation.
[Reserved]
I'll try and post the best results here once we've got enough impressions.
What happened to this thread???? No one replied?
I think the idea is awesome, however the information you ask might be a bit too detailed. I would rather try to classify uses under "light", "medium" and "heavy" (i.e. light would be just occasional phone and messaging, medium would be more frequent messaging with occasional data/gps/wifi....etc.) That way, someone could easily classify himself along these criteria and we would get a very large database of battery life for each rom and use. I'm sure a lot of people would chime in on this as battery life is very important to all of us.
For me, it's too early to give my opinion as I just got the phone and installed CM, but I am a little bit disappointed at the battery life... I definitely won't be keeping the display brightness on auto...
Hey thanks for replying!
I created this thread because in such a phone, battery life is an issue that we're all concerned about. Now, with so many different ROMs/Kernels to choose from, it's sometimes difficult to know which will suit you the best in these terms.
I never said every category I mentioned had to be answered. They're kind of a guide if you will. Just answer whatever you feel like answering, or make a simple comment if you feel lazy. I don't really care as long as the discussion stays on topic.
I think once we've got some participation this thread will grow exponentially. I just can't believe people don't give a **** about they're $500+ "superphone"'s battery.
ROM: CM 5.0.5.3
Kernel: intersectRavens 33.1 AVS Extra
System & software related:
Widgets: Weather widget donate, Battery Life, Agenda Widget, Audio Manager, Power Control, IP Address
Background: Wallpaper rotator(60 mins), SeePU, SetCPU, AppSwipe, GTalk, Meebo, Google Voice, Gestures, Swype
Connectivity: 2G only for 2 more weeks
Sync enabled?: Yes
GPS & navigation: Motonav about twice a week.
Others: 0% Brightness except in the sun, Display usage ranges from 20% to 60%
Battery-related:
Battery model: ends with M
Charging method: 500mA USB usually
Extra info:
Overall phone use: (Time-wise)
I'm a heavy user. The battery will die in under 4 hours if I use it constantly.
Internet (Browsing):
Internet (General): gmail,gvoice,im, xda, fmylife
Calling: about 30 mins per day.
GPS & navigation: not too much, all of them drain the battery fast.
Games: RoboDefence (level 70 , drains the battery quickly, choppy with power save kernels), AirControl. Whenever theres time to kill
Other: Camera.(tried desire, back on stock now). Shoot anything and everything. Very fast way to empty your battery.
Battery life & impressions:
Have to carry a charger on me whenever I go out for an extended period (5 hrs). Noticed some improvement in standby time with the new AVS kernel.
Waiting to try the release version of CM 5.0.6 or 5.0.7;logs indicate power saving is a priority now.
Iv always considered battery life a very important factor in my purchasing of a phone and was one of the big reasons i moved from my Desire HD to the Nexus S (amongst many others). However having been on the android scene for a while im used to tinkering with kernels and roms etc and due to the new battery graph in gingerbread im now able to make direct comparisons rom by rom and kernel by kernel to see how they all differ. This is all shown + explained below.
First id like to explain my method;
I install the rom and kernel with the same apps I always use and charge the phone fully until i am about to go to sleep. I then unplug the phone and leave it in the exactly the same place on my desk with exactly the same settings (sync intervals etc) and i kill all apps before i leave it just to make sure the test is fair.
In the morning i then take a screen shot of the battery life over the period of usually 8 hours and will upload this for you to see. I then look at the over-night battery drain as a comparison on how good battery life is on specific roms and kernels.
Justification - Many of you may be thinking who cares about standby battery life? I care about the battery when im using it!?
Well although that's valid there are many reasons i have taken this approach;
1. It is completely fair i.e. no individual differences such as 'im a heavy user' but we all have different definitions of a 'heavy user'. This is eliminated by the fact the phone is not used and thus the same every time (no individual differences)
2. If a phone has severe battery drain during sleep general knowledge should dictate that battery drain should increase when the screen is on, cpu is working and your syncing your facebook wall, thus a direct correlation with sleep battery drain and usage drain should be apparent.
Therefore i have decided over the next few days/weeks etc i will upload on a regular basis a screenshot of the battery drain over night, along with the battery use details and screen on time etc etc. In addition to the rom and kernel info and i hope that over time this proves to be a very useful thread.
I have been doing this over the last few days on a less strict system and there have been some VERY interesting results which i will upload over the next few days.
(Just a final note iv never really done anything like this on xda before so if its a stupid idea then please tell me now so i dont waste my time doing it, however if people are really interested please let me know and il make sure i do my best!!)
Thanks for reading my extremely long post!
Bratfink
SCREENSHOT 1: This was using modacos custom rom r10 and the kernel that comes with it, i had quite a short sleep (about 6 hours) but the curve pretty much shows what the point im trying to make is. The battery life is great!!
SCREENSHOT 2: This is CM7 Nightly build 27# with Netarchy's latest 1.2.1 kernel and although i didnt use the screen once of charge for a few minutes as you can see once the screen was off battery life barely decreased and was over a long period of time.
If anyone wants me to test specific combos please let me know.
I'm actually looking forward to reading your results.
Sent from my Nexus S using XDA App
Yep, this would actually be pretty useful. Good luck and good work!
i'm a sucker for these types of tests, always love doing them and seeing the results. post soon!
I like others will be keeping an interested eye on your findings.
Uploading pictures of modaco r10 with it's own original kernel today. Its an interesting result!
Sent from my Nexus S using XDA App
Uploaded to OP
I'm interested too.
Can u try modaco r10 with Netarchy 1.2.1 kernel.
bratfink said:
Iv always considered battery life a very important factor in my purchasing of a phone and was one of the big reasons i moved from my Desire HD to the Nexus S (amongst many others). However having been on the android scene for a while im used to tinkering with kernels and roms etc and due to the new battery graph in gingerbread im now able to make direct comparisons rom by rom and kernel by kernel to see how they all differ. This is all shown + explained below.
First id like to explain my method;
I install the rom and kernel with the same apps I always use and charge the phone fully until i am about to go to sleep. I then unplug the phone and leave it in the exactly the same place on my desk with exactly the same settings (sync intervals etc) and i kill all apps before i leave it just to make sure the test is fair.
In the morning i then take a screen shot of the battery life over the period of usually 8 hours and will upload this for you to see. I then look at the over-night battery drain as a comparison on how good battery life is on specific roms and kernels.
Justification - Many of you may be thinking who cares about standby battery life? I care about the battery when im using it!?
Well although that's valid there are many reasons i have taken this approach;
1. It is completely fair i.e. no individual differences such as 'im a heavy user' but we all have different definitions of a 'heavy user'. This is eliminated by the fact the phone is not used and thus the same every time (no individual differences)
2. If a phone has severe battery drain during sleep general knowledge should dictate that battery drain should increase when the screen is on, cpu is working and your syncing your facebook wall, thus a direct correlation with sleep battery drain and usage drain should be apparent.
Therefore i have decided over the next few days/weeks etc i will upload on a regular basis a screenshot of the battery drain over night, along with the battery use details and screen on time etc etc. In addition to the rom and kernel info and i hope that over time this proves to be a very useful thread.
I have been doing this over the last few days on a less strict system and there have been some VERY interesting results which i will upload over the next few days.
(Just a final note iv never really done anything like this on xda before so if its a stupid idea then please tell me now so i dont waste my time doing it, however if people are really interested please let me know and il make sure i do my best!!)
Thanks for reading my extremely long post!
Bratfink
SCREENSHOT 1: This was using modacos custom rom r10 and the kernel that comes with it, i had quite a short sleep (about 6 hours) but the curve pretty much shows what the point im trying to make is. The battery life is great!!
If anyone wants me to test specific combos please let me know.
Click to expand...
Click to collapse
Sent from my Dell Streak using XDA App
I'd be interested in seeing CM7, just whatever nightly build you manage to catch.
I don't think that result will give you precise result.
I found that statistic is wrong sometimes.
It is better to measure using "play video loop".
So, find a movie, set to the same brightness and play in loop?
gogol said:
I don't think that result will give you precise result.
I found that statistic is wrong sometimes.
It is better to measure using "play video loop".
So, find a movie, set to the same brightness and play in loop?
Click to expand...
Click to collapse
Unfortunately that will not give you how well the rom does while it is idle.
I'm really looking forward to your results. My only issue with this phone is the battery life is terrible. I ordered an extended battery off Ebay 3 weeks ago and have yet to receive it. Never ordering anything from Hong Kong again!
Fuse8499 said:
I'm really looking forward to your results. My only issue with this phone is the battery life is terrible. I ordered an extended battery off Ebay 3 weeks ago and have yet to receive it. Never ordering anything from Hong Kong again!
Click to expand...
Click to collapse
What were you using before that you consider this phone to have bad battery life? By far this phone has the best battery life of any Android device I've owned. If you want bad battery life, get an Evo. That is horrific battery life.
bratfink said:
Uploading pictures of modaco r10 with it's own original kernel today. Its an interesting result!
Sent from my Nexus S using XDA App
Uploaded to OP
Click to expand...
Click to collapse
I am looking forward to the rest of these, however just a quick question. What was your battery use like in that situation with the stock ROM? Just for reference, because I'm thinking I might switch to modaco soon. Thanks!
More soon
Iv got a few more screenies but it seems i may have to end this thread prematurely. Its the SNS or 2.3 but idle battery usage for me is pretty much identical no matter what the kernel or rom (il upload a CM7 + Netarchy 1.2.1 shot top op). This was unexpected on my behalf because with my DHD kernels and roms had a big impact on idle battery consumption. I have noticed however that without a full wipe when changing some kernels such as with M r10 idle battery life can increase drastically. I will continue for the next few days and if i dont see any big changes i may move method to a video loop or something of the sort.
Interesting find
I found out something today that may interest may of you. I was messing around with the sleep profiles on SetCpu with netarchys kernel and i found that its better to leave the range from 100-800 than 100-400 or less. This i believe is because when the phone is asleep and carries out a process it will be forced to clock to the maximum of 400mhz and then stay at that speed for 10 seconds, instead of say going up to 800mhz for 1-2 seconds to complete the same process. So a tip to you would be set your profile to 100-800mhz conservative and see what you get!
bratfink said:
I found out something today that may interest may of you. I was messing around with the sleep profiles on SetCpu with netarchys kernel and i found that its better to leave the range from 100-800 than 100-400 or less. This i believe is because when the phone is asleep and carries out a process it will be forced to clock to the maximum of 400mhz and then stay at that speed for 10 seconds, instead of say going up to 800mhz for 1-2 seconds to complete the same process. So a tip to you would be set your profile to 100-800mhz conservative and see what you get!
Click to expand...
Click to collapse
This kinda enforces the point that SetCPU is useless for the NS unless you really want to overclock...
Any battery saving tactics used buy lowering screen off profiles are counteracted by the system process;( So i think in the context of battery life you are probably better to not use SetCPU
JD
bratfink said:
Iv got a few more screenies but it seems i may have to end this thread prematurely. Its the SNS or 2.3 but idle battery usage for me is pretty much identical no matter what the kernel or rom (il upload a CM7 + Netarchy 1.2.1 shot top op). This was unexpected on my behalf because with my DHD kernels and roms had a big impact on idle battery consumption. I have noticed however that without a full wipe when changing some kernels such as with M r10 idle battery life can increase drastically. I will continue for the next few days and if i dont see any big changes i may move method to a video loop or something of the sort.
Click to expand...
Click to collapse
I would definitely move to a video loop or some other 'heavy use' task because when you think about it, not too much can really be changed when almost no power is being used in the first place.
You could also just mention your general feeling for the battery life of each rom, because quite often that is what I go by as my usage varies depending on a range of things (school day or weekend etc) .
Sent from my Nexus S using XDA App
Could you please test modaco r10 with Netarchy's latest 1.2.1 kernel ?
I would love to see the difference between modaco's default kernel vs netarchy's kernel.
On CM nightly 13, I just went 11 hours and I'm at 90%. That's 1/2% an hour. Not bad. That is with stock kernel.
Sent from my Nexus S using Tapatalk
Hey guys,
I'm planning to get a Galaxy S2 and I would like to enquire on the battery life of it.
My daily usage will be lots of whatsapp, google talk, sms and some surfing. I wonder if I can get through a day with this usage using stock rom.
Thanks and looking forward for your response.
Not to be rude, but there are multiple threads on the first page with several pages of posts discussing battery life. You might want to start there.
BarryH_GEG said:
Not to be rude, but there are multiple threads on the first page with several pages of posts discussing battery life. You might want to start there.
Click to expand...
Click to collapse
Not rude at all. That's why they have a search function built into the forums... If a mod comes across this thread, mind closing it? Thanks!
15 hours with lots of use sat-nav, Qik video calls, lots of seeing how things work, internet, email, wifi, bluetooth.
slyydrr said:
Not rude at all. That's why they have a search function built into the forums... If a mod comes across this thread, mind closing it? Thanks!
Click to expand...
Click to collapse
I gotta be honest.. not smashing XDA in anyway... but the search function doesn't really work.
computermilk said:
I gotta be honest.. not smashing XDA in anyway... but the search function doesn't really work.
Click to expand...
Click to collapse
Yes it does
computermilk said:
I gotta be honest.. not smashing XDA in anyway... but the search function doesn't really work.
Click to expand...
Click to collapse
Sure it does. Go to the Galaxy S II General thread listing page, and search "Battery Life". I'm not sure what about that doesn't work as the top 5 topics (including this one) are about battery life, one of them being the thread BarryH referred to that has 400 replies.
I can confirm the search algorithm of XDA sucks.
Whenever I need to search xda, I go to google, and search "xda whatever"
talk.maemo.org had power-search using google at the backend...
eitama said:
I can confirm the search algorithm of XDA sucks.
Whenever I need to search xda, I go to google, and search "xda whatever"
talk.maemo.org had power-search using google at the backend...
Click to expand...
Click to collapse
agreed, I often do a quick search on a subject... see nothing, then create a new topic... where it shows me there is no similar threads... only to have people say it is old news/repost etc....
If you know the answer, just reply... if not, move along.
Overall the battery life is very decent for the hardware it is pushing.... but it is nothing special. I get about 16 hours out of it a charge... it might be the best battery performance I have had yet out of an android device, but not by much! As always, it depends on what you do and how often!
It is an amazing phone IMO, and you will not regret the purchase
my battery life is great, phone can easily last a day with heavy use. Just hope you dont get the android os bug.
I dont understand how quite a few official reviews claim they got 2 full days use.
I get 12 hours with very light use, if I'm lucky....
Mine was very satisfying as it was at 45%after more than 7hours of heavy usage. No movies. But wifi surfing. And plenty of calls.
BoogWeed said:
I dont understand how quite a few official reviews claim they got 2 full days use.
I get 12 hours with very light use, if I'm lucky....
Click to expand...
Click to collapse
I have the Android OS issue yet can still get 2 days of use. Granted, I'm a light user like you claim but perhaps explaining my light usage would help. Phone is currently at 66% battery with 15min of calls, 1hr 30min of screen on, and currently 17hrs 30min off the charger. When the screen has been on, it's only been for texting, installing some apps, some WordFeud and taking some photos.
If I extrapolate my current usage, I should be able to get around 50 hours out of this charge.
dlwnew said:
15 hours with lots of use sat-nav, Qik video calls, lots of seeing how things work, internet, email, wifi, bluetooth.
Click to expand...
Click to collapse
In Qik, do you see yourself upside down? That's what I'm getting. The other person will see me just fine. I can see them fine as well, just myself, upside down.
i got 18-24hrs on mine!!
I see. But with if 3G is always on instead of wifi?
Because I would be very happy if this phone is able to last me 12 hours, 3G on all the time, background sync on, whatsapp, google talk, sms and some light surfing of browser here and there..
Can I check the bug of the Android OS that drains the battery life a common problem among all the galaxy s2 users here?
The battery life of the S2 is awful. I honestly hate it.
I am not sure if I have the Android OS bug or know what really triggers it.
Anyway when I first got my device, I charged it for about 8 hours and started using it. Installed some applications - whatsapp, waze, news readers from major news sites, twitter, facebook (from what I can remember) - and turned on push emails for gmail, hotmail and yahoo. 3G and Wifi settings were turned on. With all these running, the battery life was really bad. I could hardly get more than 8 hours in a day. Tried this for a couple of days and gave up.
Hard reset the device to stock to test what was causing the battery drain.
1st full charge (battery lasted 26 hours)
with 3G turned on, only push gmail running and made a few calls. no wifi turned on and no wifi access points set up on phone
2nd full charge (still in process)
still running push gmail with 3G data turned on and installed whatsapp and running it with an active chat group that has a constant flow of messages (averaging about 60 -100 whatsapp messages per hour). currently battery is at 67% after 14 hours uptime.
If ever I will sell this phone, sure it will be for its ridiculous battery life and for how slowly it charges up. The combination of these two issues is a real psychological break down!!!
Anyway... anybody with a rooted phone has ever tried clocking the processor down to, say, 800 MHz? Does it improves batterry life somewhat? Because I am not having noticeable battery issues in idle, but I really do as soon as I use the processor, even if I deliberately avoid 3D games and in general any sort of power eating tasks.
Hi guys,
I've been an iPhone user for four years in a row. This year though, I bought HTC One developer edition for me and my wife.
Anyway, I've seen lots of threads on battery usage and stats but they reflect results that are dependent on each particular user. I felt like my battery is not lasting long so I ran AnTuTu battery benchmark test and got 457. I still have a week for the unquestioned exchange term, so if anyone out there had the same test could tell me his score, I would decide whether to return it or keep it. Cheers,
P.S. Skype was running on background during the test. I don't know if this benchmark software is clever enough to calculate that difference, but antutu was measuring cpu-usage/battery-usage so Skype shouldn't effect the test result. Advance users might know better of course. :fingers-crossed:
djan84 said:
Hi guys,
I've been an iPhone user for four years in a row. This year though, I bought HTC One developer edition for me and my wife.
Anyway, I've seen lots of threads on battery usage and stats but they reflect results that are dependent on each particular user. I felt like my battery is not lasting long so I ran AnTuTu battery benchmark test and got 457. I still have a week for the unquestioned exchange term, so if anyone out there had the same test could tell me his score, I would decide whether to return it or keep it. Cheers,
P.S. Skype was running on background during the test. I don't know if this benchmark software is clever enough to calculate that difference, but antutu was measuring cpu-usage/battery-usage so Skype shouldn't effect the test result. Advance users might know better of course. :fingers-crossed:
Click to expand...
Click to collapse
Oddly enough I have the exact same grace period so to speak to return my one also , I have also not had very good results with battery and I am considering returning it also , I even downloaded wake lock detector , gem battery monitor, to try and see what is keeping this phone awake, so far I have not been able to nail down anything, I was hoping not to have to worry about every setting , ie, WiFi,brightness, etc etc , my s3 outperforms my one by at least 30 percent , I'm finding the phone is not really going Into deep sleep the way I think it should , anyway sorry for rambling , when. Saw your post I was like uhhhh yeah me too , anyway before I posted I went looking for antutu battery bench mark and I can't find that app , do you mean antutu benchmark, and that app has a battery score I it somewhere....? I never used that app , although I am quite the flasher , sorry for rambling , but I saw on another thread that someone else was not getting Decent battery results and had to exchange there phone and when he did he got much better battery results , I thin its a software glitch , I was hoping not to have too root, to achieve better performance ..........nope other people chime in , I'm a very light user lately and I'm barely getting 3 hours of screen time and 13 hours total , phone is draining around 4 % an hour while off....
I have the one since friday, after the onex has driven me nuts for a year because of the sh**y battery.
I am absolutly amazed by the battery of the one, getting 4-5 hours screentime (watching hd movies and playing games) and still having 20% left
Philly Jim said:
Oddly enough I have the exact same grace period so to speak to return my one also , I have also not had very good results with battery and I am considering returning it also , I even downloaded wake lock detector , gem battery monitor, to try and see what is keeping this phone awake, so far I have not been able to nail down anything, I was hoping not to have to worry about every setting , ie, WiFi,brightness, etc etc , my s3 outperforms my one by at least 30 percent , I'm finding the phone is not really going Into deep sleep the way I think it should , anyway sorry for rambling , when. Saw your post I was like uhhhh yeah me too , anyway before I posted I went looking for antutu battery bench mark and I can't find that app , do you mean antutu benchmark, and that app has a battery score I it somewhere....? I never used that app , although I am quite the flasher , sorry for rambling , but I saw on another thread that someone else was not getting Decent battery results and had to exchange there phone and when he did he got much better battery results , I thin its a software glitch , I was hoping not to have too root, to achieve better performance ..........nope other people chime in , I'm a very light user lately and I'm barely getting 3 hours of screen time and 13 hours total , phone is draining around 4 % an hour while off....
Click to expand...
Click to collapse
here is the link for the app:
https://play.google.com/store/apps/details?id=com.antutu.tester
I found one review in which they've done this test and got 574 but that was a prerelease unit so things night have changed since.
djan84 said:
here is the link for the app:
https://play.google.com/store/apps/details?id=com.antutu.tester
I found one review in which they've done this test and got 574 but that was a prerelease unit so things night have changed since.
Click to expand...
Click to collapse
I will report back with my score , thanks for the app I'm interested to see where I stand and if you get a chance you might try one of the two apps I use at least they tell you what's using your juice.........
Edit Okay maybe i'm mistaken but in order to run this test i think you need to be at at least 95% and it must take a long time , i've tried several times but no good phone is on charger will try again ....................jeeze lol
Dear Community,
In this thread I want to gather a sample to investigate to what extent the S4 suffers form overheating and how this affects the battery drainage/life. I urge you to participate as I am collecting a sample to submit a formal complaint to Samsung to raise awareness to an issue that is widespread among S4 users and to push Samsung to address this issue accordingly. In order to provide your sample please follow the instructions below and report back in this thread with the relevant information. Please first indicate which variant you have: Quad/Octa (i9505 or i9500)
Please download BatteryGraph (it's a great app to measure Battery drainage accurately) https://play.google.com/store/apps/details?id=com.modroid.battery
Run it once after download to initiate logging. Let it run for 10 minutes to allow the graph to built up a bit.
Then please Download Antutu benchmark run the benchmark fully exactly 5 times back to back (continuously). After that please enter the stock dialer (as quickly as possible) and enter *#0228# and post the temperature (external thermistor) after the tests in order to determine the maximum temp that the device reaches under continuous stress.
After that, please enter the app Battery Graph and zoom into the graph to the maximum level. Scroll slowly along the curve at the time when you performed the Benchmarks and tell me if there are interruptions or 'skips' where the battery drops 1 or 2 percent at a time and where the App does not Register a graph for those drops. Sequence/scroll slowly along the graph 1% at a time and make sure that the battery dropped 1% at a time. Please report of the battery has dropped more than 1% at a time. Please make a screenshot of your battery graph in the App and post it here for collection. I will analyze the graphs subsequently and compile it in SPSS to submit our findings.
If there is a drop of 2 or 3% at a time it means that you are experiencing Battery Percentage skips/cliffs which could indicate either a defective battery or defective device which might be the cause for the extensive heat development.
Thank you for your participation. Hopefully Samsung will listen to us and address the issue to give us the perfect S4 that we deserve.
Best,
Thomas from Germany
exxi said:
Dear Community,
...
Thank you for your participation. Hopefully Samsung will listen to us and address the issue to give us the perfect S4 that we deserve.
Best,
Thomas from Germany
Click to expand...
Click to collapse
That battery app polls for battery level changes every 5 minutes by default. I think almost every device will experience a drop of more than 1% every 5 minutes under constant stress testing. You can change it to poll every 1 minute in the settings, which you might want to mention, but even so isn't it entirely possible to lose more than 1% a minute with everything turned on (GPS, Gestures, etc.) and ~17 minutes of constant cpu/gpu stress testing? It's a nice idea but it doesn't sound like it would yield very accurate results, unless I've misunderstood your post.
EDIT: Nevermind, I see how you can step through it 1% at a time now.
Meltus said:
That battery app polls for battery level changes every 5 minutes by default. I think almost every device will experience a drop of more than 1% every 5 minutes under constant stress testing. You can change it to poll every 1 minute in the settings, which you might want to mention, but even so isn't it entirely possible to lose more than 1% a minute with everything turned on (GPS, Gestures, etc.) and ~17 minutes of constant cpu/gpu stress testing? It's a nice idea but it doesn't sound like it would yield very accurate results, unless I've misunderstood your post.
I've also noticed that you cannot really zoom in very far and at the highest zoom setting the % is still displayed in multiples of 10. Kind of tricky to differentiate between a 1% and a 2% drop.
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You might be right, what would you suggest in order to yield more accurate results? I suspect that the heat is directly linked to a very quick drainage of the battery. How can we measure how much it affects the actual battery drainage?
exxi said:
You might be right, what would you suggest in order to yield more accurate results? I suspect that the heat is directly linked to a very quick drainage of the battery. How can we measure how much it affects the actual battery drainage?
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I'm not criticizing you or anything and I'm not saying it's a bad idea, It's just that obtaining accurate battery results are tricky as everyone's device is different, has different settings enabled and are running different kernels/ROMs/etc. Batteries also seem to get more efficient as time goes on so newer devices might suffer from higher battery drains.
I'll run the battery temp test now though and see how hot mine gets!
I like your critical thinking, obviously you are right it is very trick but I believe the heat test itself could be very indicative. In the meantime I will try to find a better way to measure battery drainage.
So everyone please try to run the benchmark multiple times and submit the temperature.
The most I was able to get was 52C
Thanks
Pre-test: 29.9°C
After 3 tests: 35.0°C
After 5 tests: 37.7°C
After 7 tests: 38.4°C
After 10 tests: 38.8°C
The temperature increased less and less so I don't know how much higher I could get it.
Also, an easier way to poll the temperature is to do "adb shell dumpsys battery" over ADB. The temp will be displayed as something like 388 which means 38.8°C
Edit: It might be worth noting that the top of the phone, around the camera but more so on the screen side (so the cpu?) got incredibly hot. Almost too hot to touch. Kinda worrying, but I have spent the last half an hour stress testing, I guess
Meltus said:
Pre-test: 29.9°C
After 3 tests: 35.0°C
After 5 tests: 37.7°C
After 7 tests: 38.4°C
After 10 tests: 38.8°C
The temperature increased less and less so I don't know how much higher I could get it.
Also, an easier way to poll the temperature is to do "adb shell dumpsys battery" over ADB. The temp will be displayed as something like 388 which means 38.8°C
Edit: It might be worth noting that the top of the phone, around the camera but more so on the screen side (so the cpu?) got incredibly hot. Almost too hot to touch. Kinda worrying, but I have spent the last half an hour stress testing, I guess
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Thanks for your contribution Meltus! Really appreciated my friend. Also thanks for the ADB command it does make it easier but I doubt that you've read the correct temp as 38 appears to be quite low compared to what i got. Is your S4 a i9505 ?
exxi said:
Thanks for your contribution Meltus! Really appreciated my friend. Also thanks for the ADB command it does make it easier but I doubt that you've read the correct temp as 38 appears to be quite low compared to what i got. Is your S4 a i9505 ?
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It's also the temperature that dialling *#0228# gave me (I double checked they were both the same each time). And no, I have an i9500, running Omega ROM, if that helps.
Might want to mention the elementary precaution of taking off all case covers except for the stock case before testing to prevent insulation effect of case covers increasing battery temperature...
While you're at it you might want to standardize room temperature to 25 degrees C... I know for a fact that my device would never get hot no matter what it does if running in the freezing cold air-con'd metro...
What about brightness settings and whatnot. Should all be the same, so you have to give a standard.
Pre-test: 36.2°C
After 3 tests: 51.4°C
After 5 tests: 54.6°C
After 7 tests: 56.9°C
dafaq right??? im really annoyed at sammy for this overheating S4... after 7 times testing the Antutu, i stopped and LITERALLY put my S4 in the lower compartment of the refrigerator to get it cooled down quickly cause im pretty sure the heat sensors inside would definitely be having some testing errors and the temperatures would be really really higher than that. even when i swipe between different homescreens the phone gets to 47°C which is really annoying.
can someone pls for the LOVE OF GOD provide any solution to this freaking problem? i have been worrying a lot for spending my $730 on an overheating phone...
i have S4 i9500 Exynos version
---------- Post added at 10:02 AM ---------- Previous post was at 10:01 AM ----------
oh and i have half the brightness all the time for everything and auto brightness turned off
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
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bala_gamer said:
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta
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You can read the CPU temp instead of the battery temp?
bala_gamer said:
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta
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im talking about the cpu temps. i ran antutu cause it was asked to be done for this thread.
and why would it be silly to run any app 7 times on the flagship device? its made to run the apps as much as people want thats why we pay a huge amount of money for these devices dont we? or else we should buy the low end devices
just saying cause i had heating up issues with devices before infact my last device Note 2 used to get a lot hot but not as much as this S4...
i desperately need a solution for this...
Joe0Bloggs said:
You can read the CPU temp instead of the battery temp?
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Yes we can read cpu temp and battery temp separately, use system tuner app to read cpu temperature.
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aami.aami said:
im talking about the cpu temps. i ran antutu cause it was asked to be done for this thread.
and why would it be silly to run any app 7 times on the flagship device? its made to run the apps as much as people want thats why we pay a huge amount of money for these devices dont we? or else we should buy the low end devices
just saying cause i had heating up issues with devices before infact my last device Note 2 used to get a lot hot but not as much as this S4...
i desperately need a solution for this...
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You are not buying a flagship device just to run Antutu n number of times, do you? yes I accept we do pay huge money but that doesn't mean we can push the limit of a mobile and complain about it from a general user perspective . , it can be only done for experimental purposes and to understand the power /thermal envelope provided that it's done in the right way.
But how does running Antutu 7 times matches a real life scenario? Highly unlikely isn't it?
We are already pushing the limits of raw cpu power for a mobile, raw a15 cores are power hungry and often tend to heat faster than previous generation. Hence arm introduced the big little. The mobile heats up during heavy stress, but but that's expected with these powerful cores right? I'd better utilize the power wisely when needed rather than using it all the time. The cpu indeed gets hotter when stressed, it's the same With my s3 too the cpu temps reached upto 80,there is built in throttling mechanisms which will take of the cpu once the cut off temperature is reached. Have seen many benchmarkers these days using freezer test due to the thermal throttling in new gen devices. Yes the s4 heats up pretty quick than other mobiles but also cools down pretty fast and I think that's the way it is destined to work.
Hei one more thing, did you note how long it took to fallback to normal temps?
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bala_gamer said:
Are you talking about the battery temperature? If so something is extremely wrong with your unit, my battery temperature never went past 45 even with high stress.
If in case you are pointing out the cpu temperature then there is no reason to freak out because the cpu can handle upto 90c + and can cool off pretty fast
Edit:
And why on earth you ran Antutu for 7 times continously lol? None of the current generation phones can handle it for 7 times on a row afaik
Sent from my GT-I9500 using Tapatalk 4 Beta
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We were doing it to see if there was a correlation between excessive battery drain and overheating batteries. Mine never got any hotter than 40 and I have pretty great battery life. The OP was seeing temps of 50+ and I'm guessing he has poor battery life.
Could there have been a few batches of bad batteries sent out with devices?
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Meltus said:
We were doing it to see if there was a correlation between excessive battery drain and overheating batteries. Mine never got any hotter than 40 and I have pretty great battery life. The OP was seeing temps of 50+ and I'm guessing he has poor battery life.
Could there have been a few batches of bad batteries sent out with devices?
Sent from my GT-I9500 using xda app-developers app
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Are you talking about battery temperature or cpu temperature? Haven't heard any stories so far regarding damaged battery, but may be possible.
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Thanks for the Updates > and clear step to analize the issue to fix in next Sw update
Thanks for your efforts ]
Dear Community,
In this thread I want to gather a sample to investigate to what extent the S4 suffers form overheating and how this affects the battery drainage/life. I urge you to participate as I am collecting a sample to submit a formal complaint to Samsung to raise awareness to an issue that is widespread among S4 users and to push Samsung to address this issue accordingly. In order to provide your sample please follow the instructions below and report back in this thread with the relevant information. Please first indicate which variant you have: Quad/Octa (i9505 or i9500)
Please download BatteryGraph (it's a great app to measure Battery drainage accurately) https://play.google.com/store/apps/details?id=com.modroid.battery
Run it once after download to initiate logging. Let it run for 10 minutes to allow the graph to built up a bit.
Then please Download Antutu benchmark run the benchmark fully exactly 5 times back to back (continuously). After that please enter the stock dialer (as quickly as possible) and enter *#0228# and post the temperature (external thermistor) after the tests in order to determine the maximum temp that the device reaches under continuous stress.
After that, please enter the app Battery Graph and zoom into the graph to the maximum level. Scroll slowly along the curve at the time when you performed the Benchmarks and tell me if there are interruptions or 'skips' where the battery drops 1 or 2 percent at a time and where the App does not Register a graph for those drops. Sequence/scroll slowly along the graph 1% at a time and make sure that the battery dropped 1% at a time. Please report of the battery has dropped more than 1% at a time. Please make a screenshot of your battery graph in the App and post it here for collection. I will analyze the graphs subsequently and compile it in SPSS to submit our findings.
If there is a drop of 2 or 3% at a time it means that you are experiencing Battery Percentage skips/cliffs which could indicate either a defective battery or defective device which might be the cause for the extensive heat development.
Thank you for your participation. Hopefully Samsung will listen to us and address the issue to give us the perfect S4 that we deserve.
Best,
Thomas from Germany[/QUOTE]
bala_gamer said:
Are you talking about battery temperature or cpu temperature? Haven't heard any stories so far regarding damaged battery, but may be possible.
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Battery temperature. If someone's experiencing temperatures in excess of 50C and bad battery drain it would indicate a problem.