Related
when i listen music for about 30 mins + and running some programs such as adobe reader or opera, i can feel a warm in my hands from the battery. actually its more like to be said a relatively high heat felt by my hands !?
is this high battery heat normal? i mean for an everyday usage.
tnx in advance
Note: i did search but didnt find anything about LEO battery heating.
The battery can sometimes get quite warm, but it should never be hot. If it heats up to much you should probably get it looked at.
The battery in the HD was a lot worse than this. I think there may have been some issues, but HTC have worked on it. Thankfully, I don't know of any HTC phones exploding anywhere yet! lol
mine gets hot as well some times especially when I use igo in my car and charge the phone at the same time but also when playing a game etc.. but I read in the manual that this is normal... although I believe heat to an extent that can burn your hand its not normal.... mine never got that hold
just my 2 cents
karaern said:
...... i can feel a warm feeling when I have it in my hands.......
Click to expand...
Click to collapse
Hello,
If you are using something like Opera, coupled with a number of applications that are cpu intensive, then you are going to get high battery drain which equals high heat output. Some of the heat will be coming off the cpu as well but the end result is the same.
The problem is worse if you are using wifi and/or gprs and you are in a low signal area, which means that the device and the battery need to work even harder to serve your needs.
If this happens again then check your location relative to wifi and gprs and/or reduce the number of intensive applications you have running at the same time.
If this fails then you may have a fault; however I think one or all of the factors mentioned above are linked to your issue.
WB
ok tnx for replay guys...i accept this as normal situation, and yes i definety like to use igo8...and really its soo nice to have pda such LEO that can easily open and run several such programs!
i have some thoughts on battery life that id like to share.
our batterys are a " 3.7v" Li-Io.
a typical 3.7 li-io shuld have the folowing voltages...
4.2-4.25 fully charged
3.7v " nominal " charge
3.2v " sag" (voltage mesured when a nominal battery is hit with full rated discharge amperage)
3.0v discharged
2.5v the protection curcuitry kicks in
what ive been seeing on my vibrant is
4.24v @ 100%
currently im at 9% @ 3.709v
im projecting it to die @ 3.700v ie the " nominal " voltage
we are missing out on over half our battery potential.
i remember back in the G1 days when cyanogen lowered the shutdown voltage. i dont recall the values, but it helped.
now, i dont know if this is handled at a kernel level, or in the rom or what.
ive been doing experiments on my wife's hd2 running android, and seen great battery life even with it only having a 1200mah battery
it see's a full 4.2-3.0 discharge cycle
yes i know its diferent hardware, but the battery technology is the same, but we have a larger battery.
theres alot of talented dev's here, i doubt it'll take to long to find a solution to the early shutdown so we can finaly see full battery life.
Definitely sounds like there will be a viable solution to this. I don't know much of what you are talking about but i fully understand it. Cant wait for a solution.
Sent from my SGH-T959 using XDA App
there is a great app that i know MacnutR12 supports that you can find here
http://forum.xda-developers.com/showpost.php?p=8908951&postcount=178
you can change all the voltage, although i dont know if its how youre saying, you can play around with it and see how it goes.
ludachez said:
there is a great app that i know MacnutR12 supports that you can find here
http://forum.xda-developers.com/showpost.php?p=8908951&postcount=178
you can change all the voltage, although i dont know if its how youre saying, you can play around with it and see how it goes.
Click to expand...
Click to collapse
um, no....
thats for reducing cpu voltage.. ie: undervolting...
im talking about actualy useing the battery's full potential rather than pretending its dead when it realy has 60% left.
t1h5ta3 said:
um, no....
thats for reducing cpu voltage.. ie: undervolting...
im talking about actualy useing the battery's full potential rather than pretending its dead when it realy has 60% left.
Click to expand...
Click to collapse
Ah, ok. like i said it might not be what youre looking for...and i learned something
It is probably done this way to conserve battery life expectancy. I remember reading somewhere that unlike the old nickle based battery, Lithium ions likes to remain stimulated, as it likes to carry active charge and be topped off when ever possible. Oppose to discharging it completely and then recharge the battery. So at 3.7v vs 3.0v, you don't have the battery completely drained so that in long term it doesn't ast at least 2 years like the specification stated (2 years, drops capacity to 80% if battery is well taken care of, ie topped off when ever possible, modest temperature, humidity, etc.)
I am no battery expert just what I though might be the reason.
As stated above, this is done to increase the life of the battery. A LiIon battery can only be power cycled so many times before it looses too much capacity to be used any more. By not fully draining (or fully charging) the battery you are able to get more cycles out of it. Here's more info.
Of course if you figure out how to change the set levels, you will get more time per charge, but you might have to buy a new battery sooner.
I'd be willing to trade increased usage time for battery life span especially seeing as they are so cheap now a days. I'm not a dev or anything but it would seems like the problem is software related not hardware. I've been through 5-6 ROMs all with horrible battery life until installing Macnut R11 and suddenly getting almost double what I was getting before. Changing the battery voltage for better life per charge would be icing on top of the cake though.
right, i understand that for optimum longevity they recomend staying between 40-60%.
we currently are well above that, we are in 100-80% range. 3.7v is the nominal voltage and we are useing that for shutdown voltage. so basicly we are draining the surface charge of the battery as it comes off the charger.
think of it another way: a 12v battery in our car, is it realy dead when it drops to 12v? no.... if i recall, 10.2v is considered dead. and most batterys sit at about 14v just after you turn your car off.. ie: just off the charger...
heat is the primary killer of a li-io battery. more so than discharge cycles. ie: constant heat generated durring charge cycle does more damage than the cycle its self.
so if we are currently only useing the 100-80% range, and we were able to unlock the full 100-0% range, our run time would be greatly extended. the typical user probably charges over night, and durring the day if they think there going to need a top off. thats to charge cycles in 1 day.
lets say @ current useage you get 8 hours use, if we were to unlock the full capacity, we could get an easy 24hours of use, therefor kill the need to have a mid day charge cycle. the overall life span would increse not only due to the number of charge cycles, but also the heat cycles.
this would also make it easyer to stay in the optimum 60-40% range (we cant even drop to 60% right now) providing even better battery life....
i can see if samsung had chosen 3.5 or 3.2v for shutdown, those values would have goten awesome life. once again, it seems that samsung engineers just throw stuff at a wall and run with what ever sticks... hmm... the battery says 3.7v, i guess thats when its suposed to be dead?
Wow this is an interesting thread!
+10000000
Sent from my SGH-T959 using XDA App
I think a dev should take a look at this , this can be a great breakthrough!
Sent from my SGH-T959 using XDA App
On the vibrant, where is battery percentage calculated? Within the Kernel? Or is solely in hardware? What determines @ what voltage the battery should shutdown?
From what i can tell battery level is set in "mBatteryLevel" And that is set in the Status.java file. ( hxxp://android.git.kernel.org/?p=platform/packages/apps/Settings.git;a=blob;f=src/com/android/settings/deviceinfo/Status.java )
But there is other stuff going on that i have no idea about...
I'd really like something to come of this. Like you guys, I'm sick of not getting a full day out of my battery. Bumping for great success!
Sent from my Samsung Vibrant using the XDA app.
Hmmm... my phone seems to die at 3.2v. Not sure why yours is shutting off prematurely. Wipe batt stats?
Sent from my SGH-T959 using XDA App
.......i can already hear the *****ing and the menstral cramps from the noobs.. They want 1.6 GHz kernels just to have bragging rights against G2 owners w/ 439565653 hour battery life too. Also the vibrant SAMOLED display brilliance isnt pretty for free, that sucks up most of the batter right there dont believe me, check ur batter stats ureself. u c HTC, Moto dont have a screen like this right now in the point of time for a reason. cant have both, It dont work that way...Just like You cant have a 1700 HP V24 engine and want 55 MPG out of it too...if this is u then thats pure ignorance. Myself personally thinks its basically software headaches from samsung that cause diff problems (bloatware running in background). All the hardware is doing is what its told by the software. If the software says run random apps in background, it does it but at the expense of battery life.
Kubernetes said:
Hmmm... my phone seems to die at 3.2v. Not sure why yours is shutting off prematurely. Wipe batt stats?
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
what rom/kernel are you running? ive seen 4.2-3.7 on every combo ive used, battery wiped etc. i have evn pulled the battery and done a deep discharge to 3.0v
boimarc89 said:
.......i can already hear the *****ing and the menstral cramps from the noobs.. They want 1.6 GHz kernels just to have bragging rights against G2 owners w/ 439565653 hour battery life too. Also the vibrant SAMOLED display brilliance isnt pretty for free, that sucks up most of the batter right there dont believe me, check ur batter stats ureself. u c HTC, Moto dont have a screen like this right now in the point of time for a reason. cant have both, It dont work that way...Just like You cant have a 1700 HP V24 engine and want 55 MPG out of it too...if this is u then thats pure ignorance. Myself personally thinks its basically software headaches from samsung that cause diff problems (bloatware running in background). All the hardware is doing is what its told by the software. If the software says run random apps in background, it does it but at the expense of battery life.
Click to expand...
Click to collapse
wow, thank you... ? do you blow every thing out of perportion? nice rant tho....
personaly, i usualy get 12-16 hours with moderate use. so i wouldnt say that i get " poor battery life , esp with the early cut off voltage.
I'm running Onyx 3.1 with the Voodoo kernel. Currently at 54% at 3.779v
My problem is with the standby drain-- I'm consistently losing 3% per hour even when sleeping. For some reason this ROM spends a lot of time doing VM swaps. Tried lowering minfree thresholds in OLCF, but system is still way too active.
Sent from my SGH-T959 using XDA App
boimarc89 said:
.......i can already hear the *****ing and the menstral cramps from the noobs.. They want 1.6 GHz kernels just to have bragging rights against G2 owners w/ 439565653 hour battery life too. Also the vibrant SAMOLED display brilliance isnt pretty for free, that sucks up most of the batter right there dont believe me, check ur batter stats ureself. u c HTC, Moto dont have a screen like this right now in the point of time for a reason. cant have both, It dont work that way...Just like You cant have a 1700 HP V24 engine and want 55 MPG out of it too...if this is u then thats pure ignorance. Myself personally thinks its basically software headaches from samsung that cause diff problems (bloatware running in background). All the hardware is doing is what its told by the software. If the software says run random apps in background, it does it but at the expense of battery life.
Click to expand...
Click to collapse
Actually, I rather like my 1ghz. I underclock to 600/800 to try to conserve battery where possible and my phone runs just as smooth as it does at 1ghz.
Sure a little OC doesn't hurt, but really what's the point right now? There are no "practical" apps out now that demand more than 500mhz, and you can still do more than enough multi-tasking.
So instead of sounding like a pretenteous asshole, either contribute to the topic or shut the hell up.
Now then, I wanted to ask about the possibility of an extended battery for the Galaxy. Something with more amperage perhaps?
Sent from my Samsung Vibrant using the XDA app.
Kubernetes said:
I'm running Onyx 3.1 with the Voodoo kernel. Currently at 54% at 3.779v
My problem is with the standby drain-- I'm consistently losing 3% per hour even when sleeping. For some reason this ROM spends a lot of time doing VM swaps. Tried lowering minfree thresholds in OLCF, but system is still way too active.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
corect me if im wrong, but you shuldnt run one click with vodoo ...
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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 ?
Click to expand...
Click to collapse
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
Sent from my GT-I9500 using Tapatalk 4 Beta
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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
Yes we can read cpu temp and battery temp separately, use system tuner app to read cpu temperature.
Sent from my GT-I9500 using Tapatalk 4 Beta
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...
Click to expand...
Click to collapse
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?
Sent from my GT-I9500 using Tapatalk 4 Beta
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
Click to expand...
Click to collapse
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
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
Click to expand...
Click to collapse
Are you talking about battery temperature or cpu temperature? Haven't heard any stories so far regarding damaged battery, but may be possible.
Sent from my GT-I9500 using Tapatalk 4 Beta
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.
Sent from my GT-I9500 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Battery temperature. If someone's experiencing temperatures in excess of 50C and bad battery drain it would indicate a problem.
Am using a combination of Paranoidandroid and Franco kernel, and as widely discussed, the device gets hot at times very hot. So apologies if this has been discussed before, as I did a quick search but nothing came up, so what would be the gradual effect of the phone overheating, as clearly this must represent to some extent irregularities in the phone system DDoes it slowly cook up the internals of the phone, or maybe perhaps the phone is designed to withstand such heat, so just concerned because I use my phone at least 15hrs a day, so just concerned.?
I'm not a hardware pro so take this with a grain of salt. I think that long-term heating of the internals will have minimal harmful effects on your hardware. It'd take years and years for it to actually affect your device, long after you've upgraded. The CPU has undergone plenty of testing to make sure it lasts for a long time under self-inflicted environmental factors such as heat.
would also like to know. but not sure about what is considered hot/really hot.
the max CPU temperatures i reached were around 56°C (133°F), but thermal throttling on francos kernel is set to 70°C (158°C) by default (i lowered it to 65°C/149°C just to be safe).
if i remember correctly, i read somewhere that li-ion batteries dont really like being above 42°C (107°F), so when it reaches that temp, i immediately let it cool off.
so to sum up, thermal throttling is there to protect the soc and the hardware around it, so i would be concerned about the parts on the motherboard. i cant recall where i read that temp limit on the battery, so i cant state anything for sure about that.
marvi0 said:
Am using a combination of Paranoidandroid and Franco kernel, and as widely discussed, the device gets hot at times very hot. So apologies if this has been discussed before, as I did a quick search but nothing came up, so what would be the gradual effect of the phone overheating, as clearly this must represent to some extent irregularities in the phone system DDoes it slowly cook up the internals of the phone, or maybe perhaps the phone is designed to withstand such heat, so just concerned because I use my phone at least 15hrs a day, so just concerned.?
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It won't affect phone's hardware afaik, the cpu itself has thermal guard and will automatically shutdown itself if the temp reach 110 or 120° (not sure between those two).
The one that may affected is battery, it may reduce your battery lifespan or even explode it if it's too hot, but it's hardly happens.
Sent from my Nexus 4 using Tapatalk 4 Beta
So, I purchased a replacement battery for my V20 from Amazon. I wen't with the Perfine 3,200mAh as I couldn't trust that the "original OEM" batteries were genuinely original. However, I've noticed (as one other review on amazon mentioned) that the temperature sensor in the battery isn't working. It constantly seems to read around 22°C no matter what. The other day my V20 became very hot during use, possibly dangerously hot (I don't think this was related to the battery, it was a fairly hot day). I checked the temps using Aida64. One of the temperature sensors, "tsens_tz_sensor11" read 71.4°C!! I immediately shut the handset down to be on the safe side. I don't think I've ever had a phone get this hot. Is that normal? Or even safe? And how dangerous is a battery without a temp sensor? - I'm guessing not very safe at all
MikusP said:
So, I purchased a replacement battery for my V20 from Amazon. I wen't with the Perfine 3,200mAh as I couldn't trust that the "original OEM" batteries were genuinely original. However, I've noticed (as one other review on amazon mentioned) that the temperature sensor in the battery isn't working. It constantly seems to read around 22°C no matter what. The other day my V20 became very hot during use, possibly dangerously hot (I don't think this was related to the battery, it was a fairly hot day). I checked the temps using Aida64. One of the temperature sensors, "tsens_tz_sensor11" read 71.4°C!! I immediately shut the handset down to be on the safe side. I don't think I've ever had a phone get this hot. Is that normal? Or even safe? And how dangerous is a battery without a temp sensor? - I'm guessing not very safe at all
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I've read the opposite that most of the knock off after market batteries are crap and you're best off sticking with a genuine oem battery.
Sent from my LG-H910 using XDA Labs
cnjax said:
I've read the opposite that most of the knock off after market batteries are crap and you're best off sticking with a genuine oem battery.
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Sorry, I didn't really make that clear enough. There are a ton of fake "Genuine LG OEM" branded batteries out there. They're all skinned like the official battery that came with the V20, with a few minor differences. This make it really hard to know whether you're actually buying a genuine LG product or not.
The battery I bought isn't a knock off, it's a third party battery. The capacity of this replacement is great, actually slightly better than the genuine one that came with my V20. The only issue is the dud temperature sensor.
MikusP said:
Sorry, I didn't really make that clear enough. There are a ton of fake "Genuine LG OEM" branded batteries out there. They're all skinned like the official battery that came with the V20, with a few minor differences. This make it really hard to know whether you're actually buying a genuine LG product or not.
The battery I bought isn't a knock off, it's a third party battery. The capacity of this replacement is great, actually slightly better than the genuine one that came with my V20. The only issue is the dud temperature sensor.
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71C is high, is that after running a benchmark or something?My note 4 used to go over 73c sometimes .My cpu idles around 28-30c ( i changed the thermal paste) and goes to around 60c under max load.I'd recommend changing the thermal paste for sure. Regarding the battery, it's probably the temp sensor on the Battery IC that's not compatible with V20?
jass65 said:
71C is high, is that after running a benchmark or something?My note 4 used to go over 73c sometimes .My cpu idles around 28-30c ( i changed the thermal paste) and goes to around 60c under max load.I'd recommend changing the thermal paste for sure. Regarding the battery, it's probably the temp sensor on the Battery IC that's not compatible with V20?
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I was on 4G at the time, and only checking Reddit and reading the news. Nothing intensive at all, which is why I freaked out a little. Room temp was probably around 30°C at the time.
I reckon you're right about the temperature sensor. It does seem to get some sort of reading but always hovers around the 22/23°C mark. Should I be worried about that? The battery obviously has a temp sensor for a reason. I really don't want a note 7-esq experience any time soon...
MikusP said:
I was on 4G at the time, and only checking Reddit and reading the news. Nothing intensive at all, which is why I freaked out a little. Room temp was probably around 30°C at the time.
I reckon you're right about the temperature sensor. It does seem to get some sort of reading but always hovers around the 22/23°C mark. Should I be worried about that? The battery obviously has a temp sensor for a reason. I really don't want a note 7-esq experience any time soon...
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yeah you never know.When charging batteries( especially non-oem) best to have fully functioning one especially from a safety standard.Yes, there are good reasons for battery temperature sensor.It says a lot about the health of the battery , like if its prone to failure in the near future.This is a wild scenario but say if your battery starts expanding rapidly it's gonna be very hot and phone will be made aware(99% chance this isn't gonna happen but just an example).You may have noticed if you use Fast charge, the battery gets hot, nothing crazy but hot nonetheless.So if your device is fast charging, it may send false battery temp readings and fast charge may keep sending higher voltage or current(i think fast charge is like 9v) because as far as it knows battery is not at temp threshold. Obviously voltage threshold comes in to play primarily, but you get the the idea.That's just another scenario i could think of as an example.Have you tried checking temps with other apps like cpu-z for consistency? Yeah i see why your temp is so high 30C room temp, that's so hot lol Mine is probably 14C .
My battery definitely goes above 23c so yeah something is wrong there.
Interestingly i once made my phone reach 90c with lineage os running kernel auditor and cpu on max speed. I could not touch the fingerprint se sor. Im not sure if it was really 90 or kernel auditor was wrong. Battery and everything was stock.
jass65 said:
best to have fully functioning one especially from a safety standard
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Thanks a lot for the feedback, I reluctantly returned it today. It's a shame because it really was a huge improvement over the stock V20 battery. I've taken a punt on another third-party replacement. Fingers crossed!
iliais347 said:
Interestingly i once made my phone reach 90c with lineage os running kernel auditor and cpu on max speed. I could not touch the fingerprint se sor. Im not sure if it was really 90 or kernel auditor was wrong. Battery and everything was stock.
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Holy moly! That's ridiculous! haha. I know CPUs can withstand very high temps, but 90°C in a smartphone is pretty nuts!