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[Q] Safest Max Battery Temparature?

Many users may find their phone gets quite hot, thankfully Aluminium is a heat conductor and dissipates the heat in the cold air but Sensation owners may find the phone can feel quite hot at the back and possible the screen feeling hot too.!
So far while gaming for about 10-15 minutes, I have had my temperature reach 46 degrees celsius.(~115 Fahrenheit)
I think the failsafe temperature maybe around 52 degrees Celsius(~125 Fahrenheight)
Anyone know what the failsafe temperature is or what should be the highest safe temperature?
how hot has your device gone?

Highest temps i got was around 41 degrees Celsius, this was while playing gameloft games (heavy 3d graphics).

could be charging and gaming same ime causing 45.9 degrees celsius

1 hour gaming (galaxy on fire ) and at the same time charging and i guess wifi was also enabled and the highest which I saw was about 45.8

Spoke to HTC
normal operating temperature is 30°c to 40 °c
Anything upto 50°c is safe and erl not harm the device
Sent from my HTC Sensation Z710e using XDA App

I managed 46.4 last week.
Anyone think they can beat that? If not, what do I win?

was charging the battery and concurrently doing a large file copy (about 5Gb) to the SD card - on my widget monitor - temp went up to about 50C, phone body was getting noticably hot and there was some distortion on the screen (multicolour "snow" on some of the widgets).
finished the xfer - shutdown phone for about 15 mins to let it cool down - haven't had the same problem since (altho I haven't done such a large file xfer again either)

ikhzter said:
Spoke to HTC
normal operating temperature is 30°c to 40 °c
Anything upto 50°c is safe and erl not harm the device
Sent from my HTC Sensation Z710e using XDA App
Click to expand...
Click to collapse
Well, i'd like to keep it below 37 at all times. After having mobo in Desire replaced which had heat issues (just look up desire overheating and rebooting), i'm very cautious regarding temperatures.

Had mine up to 48 degrees while it was in my pocket, best thing is I didn't feel a thing till I took it out and damn... way too hot =S

Mine was at 55oc whilst charging overnight once. Still fine though, although I suspect there is something wrong with my battery. 4/5hrs mild use took me down to 55%!

eXceed said:
Mine was at 55oc whilst charging overnight once. Still fine though, although I suspect there is something wrong with my battery. 4/5hrs mild use took me down to 55%!
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Click to collapse
You should check battery information in spare parts. Check if it says battery health overheated instead of good.
Sent from my G2X running Bionix 2

That was a few days ago, battery health now says good but at the time it said overheated :S.

Overheating?

How hot is the Optimus 3D Meant to be when charging? Mine seems to go to 60 degrees Celcius while doing nothing...

give it a restart and see if its still overheating while charging.

Still seems to heat up, even when not charging, it not too sure if its normal since my desire HD doesn't heat at all.
around what temp should it be normally?
I also find the battery almost impossible to remove.

314 said:
Still seems to heat up, even when not charging, it not too sure if its normal since my desire HD doesn't heat at all.
around what temp should it be normally?
I also find the battery almost impossible to remove.
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Click to collapse
could be that you got some apps that's making your processor go crazy =/
Got any apps like setCPU or along those lines and you set it to be as high as possible or set to Performance? That can cause overheating if you don't set a profile to bring it back down. If not, maybe you could install apps like SystemPanel or WatchDog Task Manager to check if there's any strange apps.
You could always reflash your rom or a different one to see if that fixes the problem.
Might also be a battery problem. Replacing the battery could help too.

I'm not rooted yet, i just wanted to know if there was something wrong with my optimus3d

I recently tested the battery with the StabilityTest app over 2 hours long (noncharging) and it didn't go over 28°C... so normally it can't be a problem with an app stressing the cpu too much

how long should the O3D's battery last? Mine pretty much goes down 1% in less than 1 minute with display on full brightness while doing almost nothing...

314 said:
how long should the O3D's battery last? Mine pretty much goes down 1% in less than 1 minute with display on full brightness while doing almost nothing...
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Click to collapse
Most probably you have a process causing this. If you are using any kind of cover or case, DON'T use it until the problem is fixed, or you can get the cpu burned

i'm using a brand new optus australia optimus 3d, it doesn't have a cover, or much apps installed (Except ADW and a few gameloft games - which don't cause battery drain on my desire hd)
Android system seems to be using 70% as well, even though autosync is off.
I'm using the most recent android 2.2.2 update.

Its fairly normal for it to heat up a little when charging. The charge circuit has a feature where it will fast charge and try to dump as much current as it can into the battery when it is really low. I have a two amp usb mains charger that fully charges the battery in 20 minutes and that causes it to heat up pretty significantly. I find that any task that works the gpu significantly heats it up too. Pretty normal really.
Sent from my LG-P920 using xda premium

my battery takes quite a long time to charge though...

You need to check your CPU usage, if your cpu running 100% all the time, that mean something is bugged. I got this problem now, sometimes after using the MX video player, my cpu always stay at 100%, I need to restart my phone to fix it.

i use recent coh gingerbread v2.2 and watch movie for almost 2 hr and at about 46c

S6 heating!!!! help

Hello guys.
So i bought the s6 non edge 32 gig model 3 days back. The phone is awesome no doubt but i had heating issues from the very first day. First i thought it might be the battery drain. did factory reset and i was getting 4hrs+ SOT with 5.0.1.
Now i am on 5.1.1 and the battery seems to have improved giving 5hrs SOT. But the phone heating issue remains the same. The phone gets warm about 92F above after 5 minutes to 10minutes normal usage.
Using the phone for 30 min the temperature is near 100F . is it normal? Cpu spy shows normal activity.The phone only heats while using it is cool with screen off. The heat is felt on the left side of camera and spreads around after more usage. Due you think its because of the climate. i live in a place where summers are always above 93F . But even in AC phone gets pretty warm.
Do you think my battery timings and phone heating is normal. Please comment i am quite worried about it i spent a lot of money on it.
Regrads

assasin196 said:
Hello guys.
So i bought the s6 non edge 32 gig model 3 days back. The phone is awesome no doubt but i had heating issues from the very first day. First i thought it might be the battery drain. did factory reset and i was getting 4hrs+ SOT with 5.0.1.
Now i am on 5.1.1 and the battery seems to have improved giving 5hrs SOT. But the phone heating issue remains the same. The phone gets warm about 92F above after 5 minutes to 10minutes normal usage.
Using the phone for 30 min the temperature is near 100F . is it normal? Cpu spy shows normal activity.The phone only heats while using it is cool with screen off. The heat is felt on the left side of camera and spreads around after more usage. Due you think its because of the climate. i live in a place where summers are always above 93F . But even in AC phone gets pretty warm.
Do you think my battery timings and phone heating is normal. Please comment i am quite worried about it i spent a lot of money on it.
Regrads
Click to expand...
Click to collapse
i think if you're worried about it you can bring it to Samsung Service Center to get it fixed.

i donot have samsung centre in my area. infact i have to ship it to dubai to get it fixed. can you tell me does your device gets warm after using it?

assasin196 said:
i donot have samsung centre in my area. infact i have to ship it to dubai to get it fixed. can you tell me does your device gets warm after using it?
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Click to collapse
wow that's pretty bad, sometimes, when using too long for battery consuming applications like gaming or such, but when i put it into my pocket when it's warm, it gets hotter.

but my phone gets warm on normal usage

assasin196 said:
but my phone gets warm on normal usage
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Click to collapse
you can try downloading CPU Spy Reloaded to check your CPU state usage, get better battery stats as well to check what is consuming your battery the most

zincsnow said:
you can try downloading CPU Spy Reloaded to check your CPU state usage, get better battery stats as well to check what is consuming your battery the most
Click to expand...
Click to collapse
okay so i downloaded both apps... the cpu spy shows no sign of abnomal cpu usage... it is in deep sleep for most of the time. better battery stats show no app draining battery... i only use fb/messenger and gmail app. today i got 5 hrs SOT with 22hrs usage time. i think the battery us fine but why the phone warms up so much. My question is how oftenly do you feel that yous phone is getting warm?

Maybe brightness is too high causing the phone to heat. Cases also make phones overheat.

assasin196 said:
okay so i downloaded both apps... the cpu spy shows no sign of abnomal cpu usage... it is in deep sleep for most of the time. better battery stats show no app draining battery... i only use fb/messenger and gmail app. today i got 5 hrs SOT with 22hrs usage time. i think the battery us fine but why the phone warms up so much. My question is how oftenly do you feel that yous phone is getting warm?
Click to expand...
Click to collapse
my phone doesn't get warm often
Fullmetal Jun said:
Maybe brightness is too high causing the phone to heat. Cases also make phones overheat.
Click to expand...
Click to collapse
he could be using auto brightness, which also causes the phone to spike the brightness and heats up faster

Hey, I had a similar problem with my Galaxy S6 32gb and I would only get roughly 10 hours battery life out of it with 2 hours screen on time and as soon as I turned the screen on, it would be so hot on the right side, you couldn't actually hold it. I just ended up selling it and didn't think to contact Samsung or anything because it did it every time I turned the screen on so I just thought it might've been normal. I always had everything turned off with just wifi and auto screen brightness on and just 1 Google account synced too. :silly:

ash123456678 said:
Hey, I had a similar problem with my Galaxy S6 32gb and I would only get roughly 10 hours battery life out of it with 2 hours screen on time and as soon as I turned the screen on, it would be so hot on the right side, you couldn't actually hold it. I just ended up selling it and didn't think to contact Samsung or anything because it did it every time I turned the screen on so I just thought it might've been normal. I always had everything turned off with just wifi and auto screen brightness on and just 1 Google account synced too. :silly:
Click to expand...
Click to collapse
that's a sad story you shouldn't contacted Samsung to get it sorted out

Figured out it was a hardware issue... there are two ways to check if you s6 heating issue is software or hardware related. install gsam battery monitor and see if kernel or android OS (apart from any third party app draining) is draining most battery than its a software issue.
otherwise its a hardware one. i got mine replaced and the new one works fine.

heat issues

The device is getting uncomfortably hot especially around the ear piece and the entire device get hot too. Anyone experience this.

Mine runs cool as a cucumber . I've experienced no issues with heat

juggamonkey said:
Mine runs cool as a cucumber . I've experienced no issues with heat
Click to expand...
Click to collapse
You are lucky

uneek-n1 said:
You are lucky
Click to expand...
Click to collapse
Everything good on my end as well..

I was just going to post the same issue, because it happened to me today, after 2 weeks of using the phone. The unit became so uncomfortable to hold due to heat that I had to turn the phone off completely. At that time the phone was playing music file over Samsung music app, message on the screen popped up stating System UI not responding and when I opened the phone only home screen apps were displayed, all other app icons disappeared, all other pages were empty. Trying to open any app was impossible, touch screen was not responding. I am little bit worried. The battery was at 27% at 4 pm in the afternoon, I have removed the phone from charger in the morning at 7:30 am. Normal usage during the day, nothing abnormal.

I've noticed heat on the back of the phone but it isn't alarming. I've considered factory resetting it if it worsens but it hasn't really.
You guys may want to get a replacement unit if anything. No excuse considering the price and no variance of Socks.
What firmware are you guys running?

Heating is quite subjective, so it would be better if we give Battery and CPU temperatures here.
My average CPU temp is 31 degrees Celsius and Battery Temperature is about 28. The maximum CPU Temp has risen is 36 and battery max. has been 33.
I suppose, till 40 degrees Celsius there is nothing to worry. If temperature gets close/above to 45, then the situation gets alarming.
My phone though feels warm many times .

Zappapp said:
Heating is quite subjective, so it would be better if we give Battery and CPU temperatures here.
My average CPU temp is 31 degrees Celsius and Battery Temperature is about 28. The maximum CPU Temp has risen is 36 and battery max. has been 33.
I suppose, till 40 degrees Celsius there is nothing to worry. If temperature gets close/above to 45, then the situation gets alarming.
My phone though feels warm many times .
Click to expand...
Click to collapse
how do you measure the temperature of CPU and battery?

carlitos66 said:
how do you measure the temperature of CPU and battery?
Click to expand...
Click to collapse
There are many free and paid apps. on Play Store. Search by "CPU Temperature" or similar and choose what suits you.

Zappapp said:
Heating is quite subjective, so it would be better if we give Battery and CPU temperatures here.
My average CPU temp is 31 degrees Celsius and Battery Temperature is about 28. The maximum CPU Temp has risen is 36 and battery max. has been 33.
I suppose, till 40 degrees Celsius there is nothing to worry. If temperature gets close/above to 45, then the situation gets alarming.
My phone though feels warm many times .
Click to expand...
Click to collapse
One thing i wanted to add is that as far as I know, average CPU and Battery Temperature should be considered, as both, especially CPU Temp. can fluctuate widely.
If somebody has more info. on the subject, please do post.

uneek-n1 said:
The device is getting uncomfortably hot especially around the ear piece and the entire device get hot too. Anyone experience this.
Click to expand...
Click to collapse
Not experienced heat issue once over last 4 weeks owning a Fold2...
Perhaps you have a software (app) issue or a hardware fault? Sorry

My phone seems to be close to 40 c always.

uneek-n1 said:
My phone seems to be close to 40 c always.
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Click to collapse
I have 5 of Fold 2"s with my friends and sixth is mine. All are experiencing slight overheating.
If you check the web, this issue seems to be quite common.
Try a master reset and maybe this goes away. I did not experience any overheating till day before yesterday, but i installed a lot of apps. yesterday, so it could be a rouge application.
I would do a master reset tonight.

Zappapp said:
I have 5 of Fold 2"s with my friends and sixth is mine. All are experiencing slight overheating.
If you check the web, this issue seems to be quite common.
Try a master reset and maybe this goes away. I did not experience any overheating till day before yesterday, but i installed a lot of apps. yesterday, so it could be a rouge application.
I would do a master reset tonight.
Click to expand...
Click to collapse
Do let me know if the reset solved the problem

uneek-n1 said:
Do let me know if the reset solved the problem
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Click to collapse
Yes, would post here & let you know.
Would master reset tonight or tomorrow and will not install any apps. after reset and observe.

uneek-n1 said:
Do let me know if the reset solved the problem
Click to expand...
Click to collapse
Master reset done about 2 hours back. No apps. installed yet.
Running extremely cool, won't install any apps. for the next 24 hours and observe for any heating issues.
---------- Post added at 05:49 PM ---------- Previous post was at 05:37 PM ----------
uneek-n1 said:
Do let me know if the reset solved the problem
Click to expand...
Click to collapse
I know a Samsung Technician and i just spoke to him on Fold 2 heating up. He says for Snapdragon 865 " CPU temperature of less than 60 degrees celsius when gaming. & when mobile is doing small processes or in an idle state, max around 45 celsius is not an issue. Also for 865+, this limit has been enhanced by approximately 5 to 10%.
I also read this, though pretty old -
https://www.xda-developers.com/processor-temperature-results-for-tens-of-socs-how-hot-is-your-chip/
Can somebody confirm the above.

uneek-n1 said:
My phone seems to be close to 40 c always.
Click to expand...
Click to collapse
Any updates on the heating issue?
Mine does get warm occasionally, sometimes it turns slightly hot, but nothing uncomfortable to hold.

Zappapp said:
Any updates on the heating issue?
Mine does get warm occasionally, sometimes it turns slightly hot, but nothing uncomfortable to hold.
Click to expand...
Click to collapse
I have noticed that it gets warm when I am playing a video etc and then when I use the phone to make a phone call it starts getting warmer around the ear piece so much so that I have to hold it away from the ear

Zappapp said:
Any updates on the heating issue?
Mine does get warm occasionally, sometimes it turns slightly hot, but nothing uncomfortable to hold.
Click to expand...
Click to collapse
And now I am noticing that when the call screen comes up, a pixel just below the network indicator flicker sometimes

uneek-n1 said:
And now I am noticing that when the call screen comes up, a pixel just below the network indicator flicker sometimes
Click to expand...
Click to collapse
Can you post a screenshot?

Check for battery drain in my OP7 Pro

Hi everyone!!
I'd like to get some advice about my issue that I've been having for a while...
My battery drain is what you may see in my attachments. Please tell me some good advice to reduce this drain or whether it is normal functioning either...
In conclusion, I'd like to know if it might be convenient to replace the battery and, furthermore, whether there are larger batteries with more autonomy.
My phone is 2 years and half old but to be honest I use it intensively with its battery-case (manufacturer: Newdery).
Thanks!!!

Sorry for late reply, just saw this.
You get 6 hours of battery life with 14% screen on time? That doesn't sound to correct.
My suggestion would be to install the app: AccuBattery. I swear by it - it is very good I think. It will watch your apps much better than the stock android battery monitor. It will also tell you your battery health, the mAh left out of the total of 4000. If you have a very low amount left (capacity wise) then you may want to get a new battery. But make sure to do several charges before taking it as accurate. Use the app for several days, even the little "notes" in the app will tell you this - it's to "acclimate" to your use and give you more accurate statistics.
Hopefully this helps - 6 hours is definitely not good.

theslam08 said:
Sorry for late reply, just saw this.
You get 6 hours of battery life with 14% screen on time? That doesn't sound to correct.
My suggestion would be to install the app: AccuBattery. I swear by it - it is very good I think. It will watch your apps much better than the stock android battery monitor. It will also tell you your battery health, the mAh left out of the total of 4000. If you have a very low amount left (capacity wise) then you may want to get a new battery. But make sure to do several charges before taking it as accurate. Use the app for several days, even the little "notes" in the app will tell you this - it's to "acclimate" to your use and give you more accurate statistics.
Hopefully this helps - 6 hours is definitely not good.
Click to expand...
Click to collapse
Hi!!
Thank you very much for your reply!
I forgot it but I already had Accubattery installed on my phone.
In fact, in attachment you have the battery wear data from April 2021 till now..
I hope that I shared you useful data to analyse the issue.
What do you think? What should I take from the app?
I thought that the new Android version 11 is the cause of battery drain as another phone (Xiaomi Redmi Note 10) suffers from it after the upgrade to Android 11..

umby75 said:
Hi!!
Thank you very much for your reply!
I forgot it but I already had Accubattery installed on my phone.
In fact, in attachment you have the battery wear data from April 2021 till now..
I hope that I shared you useful data to analyse the issue.
What do you think? What should I take from the app?
I thought that the new Android version 11 is the cause of battery drain as another phone (Xiaomi Redmi Note 10) suffers from it after the upgrade to Android 11..
Click to expand...
Click to collapse
No prob
Could you take an [extended/full] screenshot of the "Discharge" tab? That will show more info about which app is draining more. Also those numbers change I believe on every charge so you'd have to just keep an eye on which app is always at the top of the section under "Foreground App Battery Usage > Battery Usage" section. Hopefully it isn't just "system" or something, hopefully it is an app that you can remove/freeze.
And what does it say for Battery Capacity above the "Battery Wear" chart?
And speaking of the wear chart, you'll want to stop charging all the way to 100%, it looks like you're putting over 1 cycle of wear on the battery very often which will degrade the battery quicker. The 'Charging" tab explains this even allowing you to set a reminder to unplug at a certain charge level (it tells you the higher you charge the more wear you put on the battery - unfortunately that's how batteries work).

theslam08 said:
No prob
Could you take an [extended/full] screenshot of the "Discharge" tab? That will show more info about which app is draining more. Also those numbers change I believe on every charge so you'd have to just keep an eye on which app is always at the top of the section under "Foreground App Battery Usage > Battery Usage" section. Hopefully it isn't just "system" or something, hopefully it is an app that you can remove/freeze.
And what does it say for Battery Capacity above the "Battery Wear" chart?
And speaking of the wear chart, you'll want to stop charging all the way to 100%, it looks like you're putting over 1 cycle of wear on the battery very often which will degrade the battery quicker. The 'Charging" tab explains this even allowing you to set a reminder to unplug at a certain charge level (it tells you the higher you charge the more wear you put on the battery - unfortunately that's how batteries work).
Click to expand...
Click to collapse
Hi, thank you for your reply!!
I'm sorry for my late replies..
In the attachments you have what you asked me.
It seems that Facebook drains the battery a lot despite the fact that I don't use it much.
The battery wear seems to be almost one fifth of total capacity for a capacity of about 3200mhA.
I'd like to have something better...
I have set at 83% the alert to reduce the wear of the battery but I wonder how it could work fine when the phone is turned off..

No problem
So, I'm not exactly sure how you use your phone but it looks like the screen-on at 23%/hr looks pretty bad but then also it says combined time was 102 hours? I believe that means how long it's been off the charger. If that's the case you can't get any better battery life than that, that is really really good.
You mention facebook doing a lot of draining. Try researching a good app freezing option on the app store. I only did a quick search but this one came up: https://play.google.com/store/apps/details?id=com.catchingnow.icebox but read the reviews (I did a quick scan and it looks like it might work as intended) and look around maybe there is a better one. But the point of this is, to freeze any apps in that list (the accubattery foreground apps) you barely use and it will prevent them from running in the background. This will definitely give you better battery life.
And I don't see the deep sleep statistic, is that around 90hrs along with the screen off time? It should be more than the screen off time at least, because if it is then it is deep sleeping correctly (no rouge apps causing it to not deep sleep), but if it's less than the screen off time, then something (maybe facebook) is keeping the phone awake even with the screen off, causing extra battery drain.
And 83% charge is pretty good, maybe even 75% might be better, I think from 0 to 75 it's like .3 or .4 wear but it's like with these batteries once you start going over 75% it jumps in wear dramatically. And if the phone is off (turned off completely you mean?) then the battery won't gain any wear because it won't be in use at all.

theslam08 said:
No problem
So, I'm not exactly sure how you use your phone but it looks like the screen-on at 23%/hr looks pretty bad but then also it says combined time was 102 hours? I believe that means how long it's been off the charger. If that's the case you can't get any better battery life than that, that is really really good.
You mention facebook doing a lot of draining. Try researching a good app freezing option on the app store. I only did a quick search but this one came up: https://play.google.com/store/apps/details?id=com.catchingnow.icebox but read the reviews (I did a quick scan and it looks like it might work as intended) and look around maybe there is a better one. But the point of this is, to freeze any apps in that list (the accubattery foreground apps) you barely use and it will prevent them from running in the background. This will definitely give you better battery life.
And I don't see the deep sleep statistic, is that around 90hrs along with the screen off time? It should be more than the screen off time at least, because if it is then it is deep sleeping correctly (no rouge apps causing it to not deep sleep), but if it's less than the screen off time, then something (maybe facebook) is keeping the phone awake even with the screen off, causing extra battery drain.
And 83% charge is pretty good, maybe even 75% might be better, I think from 0 to 75 it's like .3 or .4 wear but it's like with these batteries once you start going over 75% it jumps in wear dramatically. And if the phone is off (turned off completely you mean?) then the battery won't gain any wear because it won't be in use at all.
Click to expand...
Click to collapse
I noticed that I didn't make all the screenshots, but now I've just done them with regards to this new discharge cycle and you have the deep sleep statistics for a better analysis - they are in attachments.
I asked here for a longer battery lasting and instead I set it as 75% as the maximum percentage value of charge that reduces my autonomy but saves the battery.
However, yesterday I noticed that the charging wasn't deactivated when the phone reached 80% of charge (is the value that was set yesterday). Oughtn't Accubattery deactivate the charging?
The statistics you mentioned in your previous post appear to me a bit awkward even though they are related to many sessions in the last 7 days.
I use my phone with my phone case-battery (Newdery manufacturer) and until few months ago it could charge the phone up to about 80 % when I couldn't charge my phone through its charger. I need the charge to last a day, almost 20 hrs…
I noticed that the phone started to wear - the last few months - when I noticed that I couldn't have the phone working till the late evening and I tried to charge it fully before I left my house...
However, it is clear what I need for my use and habits, thus, new reliable battery-case suggestions would be a good hint for me...
In the end, I don't know what to do about apps that manage the apps freezing because I don't know how Android allows it and if it is worth it..