Battery Temperature - Milestone XT720 General

I was reading up on the article about Lithium batteries on BatteryUniversity and it said that 30 celsius is the ideal temperature for the phone, especially when it is charging.
My phone is normally at 23 C during standby, and quickly goes to around 30 in light usage. If I start playing games then it hits 37 C. Rare times it goes up to 40.
I am wondering if my temperature readings are normal, compared to other XT users.
Any tips on how to lower the temperature is appreciated as well. My biggest problem is when I start getting texts just early in the day and my phone starts over heating from them. Sometimes when I get texts while it is charging it goes up to 36-37. I don't know if it has to do with my app (handcent) but I never expected MMS to be such a "battery heater".
I run music apps all the time and it always stays at 30-32, but then once I start texting, bam. 37.

I've had mine hit as high as I believe 48C, but that was really pushing it and with a 100MHz overclock.
Typically any app that requires processing power will make it heat up a lot.
It may be a good idea to use a CPU manager.

You don't really need to sweat it (pun intended). No matter what you do, the CPU will have to work, thus creating heat. The only time you really have to worry about it is when it gets around 50°c. At that point you have to really worry about frying your processor. I have gotten mine up to 54°c and nothing happened. Freaked out, yes and put the phone down to rest for about an hour. Biggest thing that causes temp to go up, believie it or not, is the display. I can listen to an entire baseball game with the screen off and temp will hover around 113°f. Screen on and it goes way up really fast. SetCPU had a profile that will throttle back CPU when temp gets too high. Cool widget is Batstat. It'll show charge, voltz and temp in f/c°.

my phone's usual starting temperature (while phone is doing nothing) is around 30-32 degrees. I believe that it's due to warm climate where I live( room temperature during day is like 30 degrees) after playing a graphics intensive game for 5-10 min, phone temp will reach 40 degrees. Is that normal?
Sent from my Milestone XT720 using XDA App

yeah, thats wat i'm wondering too. But then the post above u said as long as its not over 50 then its fine. I've read for other phones it goes up to 60/70 sometimes, so i guess i'm just over wondering.

my average temperature when i just pick up my phone is around 32degrees unless im in an air conditioned room... it usually heats up to 35-37 while im using it to do light stuff like facebook and twitter. my phone gets very hot only when i use my 3g network or when i am downloading a lot of apps from the market. i dont play games.

I am under 40°C with OC to 820mhz. I can have 40°C when I use gps on car when there is a lot of sun.
PS : I you want to stay at 40°C, you can use setcpu and underclock phone when battery temperature is higher.

On standby, my phone is at about 30 degrees. After light usage, it goes up to 37 degrees, which I guess is normal...
I once had my phone go up to 52 degrees. OC'ed to 1.2GHz and was running a game.

Related

[Q] Overheating?

My current setting is Stock 2.3.4 ROM + Netarchy 1.3.0.12 kernel.
I noticed that it has been heating quite often.. and I can smell as if it's burning if I put my nose directly to the phone.
SetCPU shows that my phone is around 39~42 degrees when I can feel the heat on my hand.
My current SetCPU setting is max 1000 min 100 ondemand. I didn't change any voltage.
Is my device okay? I have Best Buy BlackTie In Plan.. so I don't know if I should exchange it.
check your background apps. maybe try restoring to stock then use the phone as you normally would. observe your phone temp. if that doesnt do you any good then i think you might need a replacement.
Mine gets that high, only while on charge and streaming music or running gps etc with the screen kept on. Or just constantly playing with the phone like a crackhead while on charge.
Idle temps while charging are around 37c (screen on)..
I left my phone with screen off for 30 minutes and now it's back to 29 degrees per setCPU.
I began to wonder if this is the smell from the phone itself or the actual burning because this smell continues to exist whether the temp is low or high.
I just do normal browsing, XDA app, and Facebook.. then it goes up to late 30s and low 40s.
It's probably just the new phone smell (ie fresh electronics)..
It seems like heating is somewhat of an issue for the new Galaxy S II as well.

(Q)Battery Temp?

What is the Battery Temp. supposed to be around on these phones?
And i possibly think the temp. monitor on Battery Life widget by Curvefish may be inaccurate.
On my Epic 4G its pretty accurate and around 70*F is normal Temp. At 82-86*F is Medium watching videos. 92-98*F is when i'm playing games. 100-108*F is when i'm OC'ed and playing games.
Shoot when my Epic is idling or the screen has been off for about more than 10 mins its around 74*F and if its been around a half an hour it will even drop down to about 54-56*F.
But on the NS4G it seems like anything i do seems like normal is 96.8*F, it takes a while to drop down to around 84-86*F. and when i'm watching videos or browsing XDA its at 102*F and gaming is at 104*F whether i'm OC'ed or not. The lowest iv'e seen the NS4G drop to was about 78*F and that was because it was a sleep for a long time(Hours).
So is it just the Battery Temp actually that high or is that app just not working too well with NS4G
Do you really think your epic's battery is in the 50s F ? That is far colder then any room temperature. Unless you're in the southern hemisphere and are outside in the cold your battery is simply not in the 50's
as for my daily use, like reading electronic book , few minutes of 3G internet and background music...
temp always between in 34 - 38 °C , which equals 93 - 100 °F
when i play 3D high-end games for about hour or so, it even came up to 105 °F ...
50 °F is about 10 °C, it is possible during winter ...but no in July...
albundy2010 said:
Do you really think your epic's battery is in the 50s F ? That is far colder then any room temperature. Unless you're in the southern hemisphere and are outside in the cold your battery is simply not in the 50's
Click to expand...
Click to collapse
Yep because my phone is cold when I pick it up like its 60. And when I was outside in January it was 30F because it was on the table and cold as hell. I do live in the south.
qtwrk said:
as for my daily use, like reading electronic book , few minutes of 3G internet and background music...
temp always between in 34 - 38 °C , which equals 93 - 100 °F
when i play 3D high-end games for about hour or so, it even came up to 105 °F ...
50 °F is about 10 °C, it is possible during winter ...but no in July...
Click to expand...
Click to collapse
isn't the battery's max temp supposed to be around 120*F or 45*C and it automatically shuts itself off?
i think being in the 100's around near it all day is kind of killing the life expectancy of it?
XxLostSoulxX said:
isn't the battery's max temp supposed to be around 120*F or 45*C and it automatically shuts itself off?
i think being in the 100's around near it all day is kind of killing the life expectancy of it?
Click to expand...
Click to collapse
nope for me, listening music while laying on the beach ( I live in Italy...) my battery run up to 40°C-104°F and sometimes even at 51°C-123°F, my personal best!
during sleep time in summer phone never drops down below 28°C-85°F, while in winter same condition is 22°C-71°F, so for what I suppose there's something wrong with cpu "cooling" cause is too much depending on outside temp, but running on same battery since I've purchased it, 06/11, every night charge and still same result as battery duration, so nevermind about phone temp, our nexus is a great phone...

SU-870: Over heating and short battery timing

Hi guys,
I bought my su 870 ( Korean version of p720 3d max) 2 weeks ago. I liked almost everything about it except the issues i will state below:
1. Heats up while charging and sometimes stops charging because of heting up to 55 degrees.
2. Heats up while its on standby and 2g network is on.
3. Heats up while on standby and only whatsapp and yahoo messenger r running in background.
4. Heats up like +&^% while i play a simple game or use the net or use wifi or use play store or pretty much anything.
5. Heats up to n over 55 degrees quickly while watching 3d. And no chance of watching 3d and charging simultaneously. Over heats.
6. Gives only 20 to 25 minutes video playback time on 3d at max. Of course heats up.
7. Gives a 1 hour apps usage time including net. Heats up.
8. After restarting works fine unless i put in even one app from play-store and then it heats up.
9. Heats up while using a simple app like whatsapp or if i simply keep the screen on.
10. Heats up if i charge via the USB and shows slow charging on USB.
11. Heats up if i put it in a pouch.
I've tried task killers, they help but not much, have to delete apps to make it work.
That is all i remember for now but u get my point, IT HEATS UP. I'm running stock unrooted ginger bread 2.3.6. I want to try upgrading but currently have no internet connection. So i would really appreciate it if anyone could help me out. I use my S.G.S.2 in an Xmart all plastic pouch, played full hd videos on the S2 while modern combat was running in the background n it still didn't heat up. So please help me out. I really like this cellphone n i don't want to replace it. Thanks.
I-AM-LEGEND said:
Hi guys,
I bought my su 870 ( Korean version of p720 3d max) 2 weeks ago. I liked almost everything about it except the issues i will state below:
1. Heats up while charging and sometimes stops charging because of heting up to 55 degrees.
2. Heats up while its on standby and 2g network is on.
3. Heats up while on standby and only whatsapp and yahoo messenger r running in background.
4. Heats up like +&^% while i play a simple game or use the net or use wifi or use play store or pretty much anything.
5. Heats up to n over 55 degrees quickly while watching 3d. And no chance of watching 3d and charging simultaneously. Over heats.
6. Gives only 20 to 25 minutes video playback time on 3d at max. Of course heats up.
7. Gives a 1 hour apps usage time including net. Heats up.
8. After restarting works fine unless i put in even one app from play-store and then it heats up.
9. Heats up while using a simple app like whatsapp or if i simply keep the screen on.
10. Heats up if i charge via the USB and shows slow charging on USB.
11. Heats up if i put it in a pouch.
I've tried task killers, they help but not much, have to delete apps to make it work.
That is all i remember for now but u get my point, IT HEATS UP. I'm running stock unrooted ginger bread 2.3.6. I want to try upgrading but currently have no internet connection. So i would really appreciate it if anyone could help me out. I use my S.G.S.2 in an Xmart all plastic pouch, played full hd videos on the S2 while modern combat was running in the background n it still didn't heat up. So please help me out. I really like this cellphone n i don't want to replace it. Thanks.
Click to expand...
Click to collapse
probably by any reason you have constant CPU usage. Download CPUSpy and check that.
Download Wakelock and see which program make a huge wakelocks there - uninstall it.
Then if your phone is rooted download SetCPU and set the Governor not to be on Performance, but s.t. else like OnDemand
p-vlad said:
probably by any reason you have constant CPU usage. Download CPUSpy and check that.
Download Wakelock and see which program make a huge wakelocks there - uninstall it.
Then if your phone is rooted download SetCPU and set the Governor not to be on Performance, but s.t. else like OnDemand
Click to expand...
Click to collapse
thanks for replying. i did what u asked. ive only got whatsapp in wakelock with 1 minute average. nothing else.
as ive already mentioned i dont have root.
in cpu spy at
1200 is 3.2%
1008 is 9.8%
300 is 32.6 n 50.4 in deepsleep.
so no problem in there either.
since yesterday ive recharged it twice n during recharge it hovers around 48 degreessometimes 45 or 44. during average use it stays at 38 t0 41 degrees, and in light games goes upto 48, in heavy games it goes well over 55.
its not he3ating up while its either anymore but it hetas up everytime i use the cam or watch video or games. is that much heat normal for this? also it stops charging at around 53 degrees heat
i would like to add the the region on the right side of the battery is where it hetas up so much. in battery its acceptable. And it heats up so much wjile charging and watching a video that it stops charging within ten minutes because of exceeding the 55 degree mark.
I-AM-LEGEND said:
thanks for replying. i did what u asked. ive only got whatsapp in wakelock with 1 minute average. nothing else.
as ive already mentioned i dont have root.
in cpu spy at
1200 is 3.2%
1008 is 9.8%
300 is 32.6 n 50.4 in deepsleep.
so no problem in there either.
since yesterday ive recharged it twice n during recharge it hovers around 48 degreessometimes 45 or 44. during average use it stays at 38 t0 41 degrees, and in light games goes upto 48, in heavy games it goes well over 55.
its not he3ating up while its either anymore but it hetas up everytime i use the cam or watch video or games. is that much heat normal for this? also it stops charging at around 53 degrees heat
i would like to add the the region on the right side of the battery is where it hetas up so much. in battery its acceptable. And it heats up so much wjile charging and watching a video that it stops charging within ten minutes because of exceeding the 55 degree mark.
Click to expand...
Click to collapse
I have no idea then.. try another battery. especially if this one is old or a no-name brand
p-vlad said:
I have no idea then.. try another battery. especially if this one is old or a no-name brand
Click to expand...
Click to collapse
I have original battery. Just now when i was charging it chrged to about 60 % and ten stopped charging because it heated up to 55 degrees. just because playstore and whatsapp were open in background and downloading skype from play store via my 2g network. now its slowly cooling down. Anyway thanks for trying vlad.
CAN ANYONE HELP PLEASE.
So ive been testing it a lil more. i played a hd 3d movie on it, it was qround 42 degrees when i started movie n it was charging. after 40 minute of playback it is at 53 degrees. no other app running in background. I even monitered the cpu frequency and 1 core was on 50 percent and the other was completely off at an average.
Edit: while testing i kept the back ventilated at 26 degrees temp.
Guys help me out please. is it supposed to go so hot? and does ur cellphone stop charging after reaching 55 degrees? i would realy appreciate any feedback. i dont think any cellphone should heat up above 50 degrees no matter what the condition or loads. my s2 doesnt even when ive got it fully covered wth plastic bag.
I-AM-LEGEND said:
So ive been testing it a lil more. i played a hd 3d movie on it, it was qround 42 degrees when i started movie n it was charging. after 40 minute of playback it is at 53 degrees. no other app running in background. I even monitered the cpu frequency and 1 core was on 50 percent and the other was completely off at an average.
Edit: while testing i kept the back ventilated at 26 degrees temp.
Guys help me out please. is it supposed to go so hot? and does ur cellphone stop charging after reaching 55 degrees? i would realy appreciate any feedback. i dont think any cellphone should heat up above 50 degrees no matter what the condition or loads. my s2 doesnt even when ive got it fully covered wth plastic bag.
Click to expand...
Click to collapse
my p920 is charging right now (1amp wall charger) , room temp at 31ºc phone temp at 35ºc... even in performance governor @ 1250mhz overclock i think i never saw my phone reach 50ºc and it never overheated.
unfortunately what you describe sounds more like hardware problem than anything else. i would try factory reset just to be sure it isn't some software hogging the cpu and then send to lg if problem persists.

RE: CPU Monitor

RE: CPU Monitor
Hi
I have been using CPU Monitor, I'm light on widgets (around 6), I alwways make sure the background apps are closed. I have turned off my phone for 10 minutes, and turned it back on after 30 minutes. My phone feels kinda warm/hot. The CPU monitor shows that I'm on 33 C. Is this normal to be this warm? Thank you.
skyhonor said:
Hi
I have been using CPU Monitor, I'm light on widgets (around 6), I alwways make sure the background apps are closed. I have turned off my phone for 10 minutes, and turned it back on after 30 minutes. My phone feels kinda warm/hot. The CPU monitor shows that I'm on 33 C. Is this normal to be this warm? Thank you.
Click to expand...
Click to collapse
Low to mid 30s celsius is where my phone idles at. I usually can't feel any warmth until the phone gets into the 50s. Playing games gets it up the 60s and sometimes peaks into 70s. That when it gets uncomfortably hot to touch at the top by the camera.
A lot of apps that report on temp tend to report battery temp and not cpu temp. Battery temp tends to stay at 30-40s and that is fine.
kokocabana said:
Low to mid 30s celsius is where my phone idles at. I usually can't feel any warmth until the phone gets into the 50s. Playing games gets it up the 60s and sometimes peaks into 70s. That when it gets uncomfortably hot to touch at the top by the camera.
A lot of apps that report on temp tend to report battery temp and not cpu temp. Battery temp tends to stay at 30-40s and that is fine.
Click to expand...
Click to collapse
Thank you for sharing your knowledge and experience.

[Q] Serious Nexus 5 overheating problem

Hello. I'm new with the account here, but been reading this forum for years.
I'm creating this thread because my new Nexus 5 (which I have for 20 days now) is overheating more than a normal mobile device should.
When i bought it, it had 4.4.4 Kit kat android, and I had that one for about 5 days, and in that time, I didn't notice any overheating, or maybe didn't pay attention, can't remember really.
But after installing official Lollipop 5.0.1, the device is heating pretty good even when browsing internet for 5 minutes, at about 30-40% brightness.
**** Please tell me if some of your devices are acting the same, and is it worth a try to install back an older android to try if it will stop overheating, or my device may be faulty and should I take it back for another one (or maybe switch to LG G2) ?
Because I'm still unable to post image links, i will write it down:
- Ambient temperature: 23 degrees Celsius
- The temperature sensor is taped on the back side, at the side of camera, this is where it overheats most. (even if not using camera)
- Phone temp after staying on standby with screen off: 28 C (it's not warm but it is warmer than desk which it is sitting on)
- After staying idle on home screen with screen on for 10 minutes (50% brightness): 30.5 C
- After chatting on Messenger for 10 minutes: 34.3 C (feels warm)
- After recording video for 4 minutes: 41 Celsius!!! (almost uncomfortably hot in the whole upper half of the phone, both the back side and the screen)
- After 15 minutes letting it cool down, with screen off of course, it is 38 C (still hot to touch), and it stays like that untill I reboot the phone, then it cools down.
The test took about 50 minutes, and after that, battery was drained for about 25%.
-While charging, the phone does not overheat, just gets a little warm which is OK. (haven't tried wireless charging)
P.S. I don't play games on the phone...
Please act quick in case I should return the phone...
the only time my phone gets hot is when im intensively doing a lot of things..
for example.. im playing ingress, have tether ON, and my two sons are using their tablets connected to my phone playing ingress too..
but if i turn off the game and turn off tether, it cools down..
to me it sounds u have something intesively using your CPU and perhaps GPS and other radios.
hold power button.. when PWR OFF shows, long press it and reboot into SAFE MODE...
use the phone for a bit and see if it gets warm... this should tell you if its apps installed.
I only used wifi, no tethering, no GPS, 3G, NFC or any other radios, cell signal is good so phone is not searching for it.
- In safe mode, it still gets warm when using camera. When browsing internet and watching images in google search, also but just mild warm..
- But after sitting and thinking, I've found a problem! After recording with camera and leaving it to cool down, it didn't cool down because it had to make an effort to upload that 5 min video on Google drive via Auto backup!
After turning the Auto-backup off, it is now much cooler!
I will post tomorrow with the results, if something changes...
Anyway, thank you!
First of all, "warm" doesn't mean anything.
Battery temperature does not mean much either, as the CPU is what generates the most heat.
There is a battery temperature throttle that reduces the CPU frequency, but it is almost entirely pointless as the CPU will always reach it's own throttle temperatures MUCH, MUCH earlier than the battery will. The CPU starts throttling at 65C CPU temp (NOT battery temp), and shuts itself down at about 105C CPU temp. Unless your battery somehow reaches a batterytemp of 70C+ (nearly impossible because the CPU will always hit it's throttle first), then I would never even take it into any sort of consideration unless you have a physical battery defect.
Using the camera generates heat since it's CPU and power intensive.
Using the phone in general will generate heat.
Keep in mind that mobile devices are passively cooled, not actively cooled with a fan/liquid.
Not sure what you're so worried about.
Lower your brightness
Lethargy, thank you for a short physics lesson. I'm already into physics and cooling systems so all is clear. I was just worried a bit because all of my previous phones weren't getting this warm (hot), but also never had a multi-core processor in phone eather, maybe that's the reason why I never experienced this before.
Battery temp (measured with app) gets up to 40-42 degrees Celsius, while the phone case gets up to 41 when recording video. Of course that temp won't damage the device, I'm not worried about the processor, but that temp is degrading battery life, in long term.
And about the brightness, phone is not meant to be used at lowest brightness all the time, so that shouldn't be an excuse for high temps. Just sayin'...
Sent from my Nexus 5 using XDA Free mobile app
AlexSRB said:
Lethargy, thank you for a short physics lesson. I'm already into physics and cooling systems so all is clear. I was just worried a bit because all of my previous phones weren't getting this warm (hot), but also never had a multi-core processor in phone eather, maybe that's the reason why I never experienced this before.
Battery temp (measured with app) gets up to 40-42 degrees Celsius, while the phone case gets up to 41 when recording video. Of course that temp won't damage the device, I'm not worried about the processor, but that temp is degrading battery life, in long term.
And about the brightness, phone is not meant to be used at lowest brightness all the time, so that shouldn't be an excuse for high temps. Just sayin'...
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
The only thing that sounded odd was how it wasn't cooling down until you rebooted, but it sounds like you figured that out with the automatic upload setting.
41-42c battery temp can be normal after prolonged usage, though personally I usually see that after a short gaming session. My brightness is around 40% and high brightness will cause extra heat.
Otherwise the phone is very thin so you can feel the stacked SoC and RAM heat up through the skin fairly easily, right around the camera area as you mentioned.
I think each device and CPU is slightly different and can vary by a few degrees under load as well.
AlexSRB said:
Lethargy, thank you for a short physics lesson. I'm already into physics and cooling systems so all is clear. I was just worried a bit because all of my previous phones weren't getting this warm (hot), but also never had a multi-core processor in phone eather, maybe that's the reason why I never experienced this before.
Battery temp (measured with app) gets up to 40-42 degrees Celsius, while the phone case gets up to 41 when recording video. Of course that temp won't damage the device, I'm not worried about the processor, but that temp is degrading battery life, in long term.
And about the brightness, phone is not meant to be used at lowest brightness all the time, so that shouldn't be an excuse for high temps. Just sayin'...
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Your temperatures are fine and you shouldn't worry about it. It's average for a Nexus 5, and there are throttles/shutdown temps anyways, for both the battery and CPU. I've had mine for a year and there hasn't been any sort of issue, normal usage should be negligible to the condition of the battery.
Ok, everything seems to be ok then. Now I can go to sleep without worrying Thanks guys!
Sent from my Nexus 5 using XDA Free mobile app

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