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I just got my Nexus 7 two days ago and I'm worried about the battery temperatures that I'm getting. When I haven't used it for several hours the temperature is usually 75-85 °F, but after general use (Facebook, Chrome) the temperature increases to over 90°F. Right now it's at 92.8°F after less than an hour of general use. Playing games makes it get even hotter, as you can see in the pictures I attached.
It's also mainly on the bottom left side that gets noticeably warm, I feel like it shouldn't be this warm already. I saw a few people had similar issues, are these temperatures out of the normal range or am I worrying for nothing?
mcthefresh said:
I just got my Nexus 7 two days ago and I'm worried about the battery temperatures that I'm getting. When I haven't used it for several hours the temperature is usually 75-85 °F, but after general use (Facebook, Chrome) the temperature increases to over 90°F. Right now it's at 92.8°F after less than an hour of general use. Playing games makes it get even hotter, as you can see in the pictures I attached.
It's also mainly on the bottom left side that gets noticeably warm, I feel like it shouldn't be this warm already. I saw a few people had similar issues, are these temperatures out of the normal range or am I worrying for nothing?
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battery temp isnt an idicator of your cpu temp. the n7 has a cpu temp option used by some apps(like trinity kernel toolbox) to show cou temp. btw, its normal for the cpu to go to 60C+ cpu temps on a hot day or during heavy use. anyways, did you realize that the human body averages around 98.6F? so, id even say that your battery is still fairly cool. while charging and using your n7, it would be normal to see battery temps around 110F or slightly higher. oh, and your cpu temps safety is at 100C, itll shutdown automatically if that tempurature is reached.
Seems the Nexus 6p has a cold bug. First phone i seen this in.
So i been doing some overclocking and bench marking on a few devices. The Nexus 6p has shown some strange behavior. When i had the phone chilled and ran some benchmarks the battery would drop drastically. Restart and all that did nothing. The batt. stayed at 39% for about 2 hours with some heavy use. Charged it back up no issues. Did it again and it did the same thing. Took my turbo 2 to an even lower temp and that was fine it did not have this.
Something you have to worry about? Nope not unless you are out in Alaska or taking a trip to the artic circle. However if you do this could cause you some issues.
Tested on a stock room and kernel. As well as a purenexus and elemental x combo. Same outcome.
Again not really an issue. And the Nexus camera visor and display survived the -40c freeze and back to room temp test. Attached is a pic of the massive drop
Not sure why the Droid Turbo didn't demonstrate this same behavior, but extreme cold temperatures definitely have an impact on lithium ion batteries. Perhaps the material of the Droid Turbo insulates the battery a bit better than the aluminum on the 6P?(pure speculation there - science geeks, feel free to rip that one apart)
I've experienced the same thing with my DSLR (Nikon D80) when shooting in the cold.
Sent from my Nexus 6P using Tapatalk
Devhux said:
Not sure why the Droid Turbo didn't demonstrate this same behavior, but extreme cold temperatures definitely have an impact on lithium ion batteries. Perhaps the material of the Droid Turbo insulates the battery a bit better than the aluminum on the 6P?(pure speculation there - science geeks, feel free to rip that one apart)
I've experienced the same thing with my DSLR (Nikon D80) when shooting in the cold.
Sent from my Nexus 6P using Tapatalk
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Yeah the turbo 2 was even exposed to cooler temps longer. And its not that the capacity was lost. After the bench it would stay at that + for a few hours before it started going back down. So when i started at about 74% after it still had 74% less just android was saying that it was lower. I still managed to get a full charge out of it. Not an issues just a omg my batt is almost dead. Fallowed by omg my battery has been at this % for a few hours.
-40°C isn't really common weather and is definitely out of normal range of temperatures. I live in a area where it gets cold (-30°C) during wintertime, I don't really use phone in a such coldness (my fingers would freeze pretty fast anyway.)
I once answered phone in -25°C (current phone at the moment was Sony Ericsson W910i) I talked for 15 minutes and my battery went from 100% to 21% and shut down moment after the call ended.
Don't all batteries exhibit fluctuations in total output in extreme situations high or low? I use an iphone in a work truck that is left outside in 20f to 30f temps and that thing is crazy swinging from 100% charged when I leave it in truck to dead in one night in cold temps.
Sent from my Nexus 9 using Tapatalk
is there a particular reason you guys do this stuff?
Soulfly3 said:
is there a particular reason you guys do this stuff?
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So we don't have to.
As an aside, the phones operating temp range.
http://imgur.com/aR9JMk7
JoshuaMh said:
So we don't have to.
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Why would we 'have to'?
Stbrightman said:
Why would we 'have to'?
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Perhaps gives an endurance threshold for those of us hiking in Alaska, or climbing an icy peak, ect.
Stbrightman said:
Why would we 'have to'?
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I think it was a funny
Sent from my Nexus 6P using Tapatalk
My nexus 6P sorta died on me today, it was stored in my GF's bag, we were outside, 0F, for like an hour. When I go to take my phone, won't turn on, tried plugging it in, nothing.. could the cold weather (not so cold) have killed my nexus 6P ? Anyone has had this problem ?
I live in northern Finland and I have experienced this kind of behavior with my 6P lately. The battery dies suddenly under -10 C degrees if I keep it in my pants pocket. This is daily problem so have to wear my phone in wool mitten and then pocket it.
I think this started right after 7.1 update. My phone is 12 months old so it might be the battery losing its best edge or simply software feature/bug.
The battery model uses inputs from current flowing in/out in the battery, outter voltage and battery temperature sensors and calculates Open Circuit Voltage leading to the estimated State Of Charge (by use of a 3 degrees polynom)
As any resistor, the internal battery resistance will vary depending on temperature. So will the OCV calculation.
All these parameters are linked non linearly and the models are done within temperature ranges (different coefficients for say different temperatures). If temperature exceeds thresholds ( /sys/class/power_supply/bms shows a nominal range of [10 degC, 45 degC] ), the SoC will not be computed.
If temperature exceeds thresholds or SoC varies too widely, the battery current will be downlimited, meaning it won't charge as expected or could shutdown for safety reasons.
If battery temperature goes under 5 degC, the SoC is considered invalid.
As such when starting again the device within this range the SoC will be calculated again correctly and the device will stay on.
There are also high/low safety thresholds which will instantaneously shut off the device (I think they are stored in the Qualcomm IC so I can't see these values).
So while the battery can probably work fine under 5 degres C, the SoC won't be calculated properly. You can also get some feedback from the known battery health in /sys/class/power_supply/battery/health (Good, Dead, Warm, Cool, Cold, Overheat, ...)
I've gathered this information from the Qualcomm IC driver source
Sound like a Overclocking CPU with Liquid nitrogen haha.
This just happened to me today. I was out skiing and temps were -10 f. Phone shut off in less than an hour after starting from 100%. Went back inside, warmed up the phone and the battery was stuck at 39%. I moved my phone to an interior pocket closer to my body and didn't have a problem for the rest of the day.
As a avid skier, I can say I've always had extreme cold weather issues with phones, but the Nexus 6p is definitely the most severe.
FYI I'm on 7.1.1
This happened to my Nexus 6 today. I was in the garage (non heated) working on my car and had my phone sitting on a box next to me. It was about 30°F and I grabbed my phone to send a picture of something to my friend. As soon as I launched the camera it shut down. It booted instantly after pressing the power button, but after being on for about 15 seconds the battery percentage displayed in the status bar suddenly went from 51% to 0% and it shut down again. After bringing it inside to warm up my battery was back to 50%.
I've also taken my phone snowboarding in much colder temperatures and never had this issue. Even while using it on the chair lift where it's directly exposed to the cold and wind it's never shut down.
The only thing that has changed between past usage in cold weather and today is the version of Android I'm using. Unfortunately I'm too lazy to revert to 6.0.1 to see if that solves the issue since I just did a clean install of 7.1.1 about 2 days ago...
What count is the battery temperature not the ambiant one. You can use "cool tool" or wharever app to display that. If you're rooted you can even check the health file I mentionned (to see if it's Cool or even Cold from the model perspective).
The are linked by discharge rate.
The theorical unusable capacity will increase at low and high temperature but also with discharge rate. So if you are at these extreme temperatures, you could try to lower the discharge rate as much as you can by disabling all what you don't need (sync, lte).
Anyway at -23 degres ambiant your battery was maybe at -10 which is outside of its theorical range. We don't know the practical performance at these temps. I'll have to check again to confirm the low temp threshold at which the SOC is not calculated (think 5 degres that is ambiant 0 or -5). Could be that the battery is ok but the software lacks a lookup table at these ranges. There could be a reason. Anyway, I would try to preserve the battery from these temp if you can.
I have the same issue - but in +3 or +4C degrees. The battery went from 60% to zero in 15 min.
NotEnoughTECH said:
I have the same issue - but in +3 or +4C degrees. The battery went from 60% to zero in 15 min.
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Ambiant or battery temperature? If the former, you'll need to know what the battery temperature was. That's the only thing that matters here. I guess you were talking about ambiant so the device once switched on could be at like 8 degrees so I'm surprised about your results.
I use Cool Tool but you can also use any other app like... Battery. What's relevant is battery temp AND battery health (Good, Cool, Cold ).
I've just put my phone in the fridge for some testing. Should be around 4 degrees also
Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Honor 6X stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
The time when i feel the hottest moment is when it is under charge
heat is actually expected of smartphones guys, every smartphone heats up a little or a bit high
not a dealbreaker thing
according to me if u do heavy usage in room temp 24-30 degree around phone will not heat up . It will heat up but at very slow rate and as if room temp is more than 30 degree C then ur phone will heat up a bit fast coz our phone is made up of metal and we all know metal absorbs heat very fast .
tejus said:
according to me if u do heavy usage in room temp 24-30 degree around phone will not heat up . It will heat up but at very slow rate and as if room temp is more than 30 degree C then ur phone will heat up a bit fast coz our phone is made up of metal and we all know metal absorbs heat very fast .
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a bit irrelevant, but makes sense a bit,
what you said is correct theoretically, but I never heard phones heat up due to the surrounding temperature
Surely the cause of the overheating can't be the outside temperature, but at the same time an already hot weather forces the hardware to work under hard stress... I had an old model of the first PS3 that came out with 60GB 'n retro compatibility to PS2 games, since i buyed it lasted with no problems until the summer of the previous year, where the temperature in my room was at something like 35°C. I was playing a game, Splatterhouse, and at some point I've started to hear the fan behind the PS3 working always faster. Then, after some minute it suddenly freezed in-game and the console went off. From there on, my PS3 is in YLOD state. Obviously even the console had his years (8) but guys, I'm more than sure that that day, if i wouldn't played my console probably it could still be alive...
thilak devraj said:
a bit irrelevant, but makes sense a bit,
what you said is correct theoretically, but I never heard phones heat up due to the surrounding temperature
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for quick test just use ur phone under sunlight for 5 min
and in AC rooms ur phone feels cool so surrounding factors effects 25-50% bro
tejus said:
for quick test just use ur phone under sunlight for 5 min
and in AC rooms ur phone feels cool so surrounding factors effects 25-50% bro
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yeah, what you say is correct, but the topic was heating due to processor performance/excess load, or excess charging
in that case.,even if you are in an ac room, your device will heat up a little
thilak devraj said:
yeah, what you say is correct, but the topic was heating due to processor performance/excess load, or excess charging
in that case.,even if you are in an ac room, your device will heat up a little
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yup right:laugh:
From my experience phone remains cool unless charging.
Device shouldn't heat up except when doing heavy tasks like heavy graphics games.
Sent from my Honor 8 using XDA Labs
Phone gets heated when using it constantly for about 30 mins in a room with an ambient temperature of 30 C
Noticed a major moment of heat during the use of Google Maps, but with position services on I think is almost inevitable as it's a thing that i see on every device
I currently have both Moto G4 Plus and the Honor 6X. The G4 heats up quickly during quick charge, videos, and when using google maps on a trip. Often, when trying to establish a signal in weak areas it heats up as well. The heat can sometimes be concerning. The 6X on the other hand barely warms up compared to the G4. The warmest I've seen it is when using google maps, while charging at the same time.
It heats up sometimes while charging but cools down fast.
Doesn't get heated up on regular usage or moderate heavy usage.
No excessive heating on heavy usage.
This is one area you can deffunietly show off
This phone don't get warms at all(negligible)
Never experienced heating till now.
cool device with cool temp.
---------- Post added at 05:24 PM ---------- Previous post was at 05:22 PM ----------
smooth as butter
Hi guys my Axon 7 is running the latest update (7.1.1) and my battery's temperature is 29°c (84.2°F) when idling and the room's temperature is also 29°c, but when I start using social media apps like Instagram and Snapchat ,it gets around 37°(98.6°F)and if I use Chrome for web surfing it easily gets up to 40°c(104°F), so is this normal for Axon 7? And also if I use so heavy multitasking like downloading over mobile data, watch online videos , two sims both activated , and ten other apps open at the same time but no games , the temperature sometimes goes up to 45°c(113°F). What is your Axon 7's battery temperature in different situations?(I have no battery draining issues) please also mention the room temperature that you're in. CpuTemp app shows the temperature of CPU and battery nearly the same and I think because Axon 7 is made of metal and conductive so if the CPU get hot then the battery gets too but this isn't the case about plastic made phones. ( to see the temperature of Axon 7 go to settings/ power manager/ battery cooling)
Aj-jss said:
Hi guys my Axon 7 is running the latest update (7.1.1) and my battery's temperature is 29°c (84.2°F) when idling and the room's temperature is also 29°c, but when I start using social media apps like Instagram and Snapchat ,it gets around 37°(98.6°F)and if I use Chrome for web surfing it easily gets up to 40°c(104°F), so is this normal for Axon 7? And also if I use so heavy multitasking like downloading over mobile data, watch online videos , two sims both activated , and ten other apps open at the same time but no games , the temperature sometimes goes up to 45°c(113°F). What is your Axon 7's battery temperature in different situations?(I have no battery draining issues) please also mention the room temperature that you're in. CpuTemp app shows the temperature of CPU and battery nearly the same and I think because Axon 7 is made of metal and conductive so if the CPU get hot then the battery gets too but this isn't the case about plastic made phones. ( to see the temperature of Axon 7 go to settings/ power manager/ battery cooling)
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The CPU has one of those vapor pipes that goes from where the CPU is to roughly the center of the screen. I wouldn't be surprised if that actually heats the battery. It's somewhat cold in this time of the year where I live (no more than 20°C) but the battery only gets real hot while charging when the phone is with its back upon the bed sheets or something that doesn't conduct heat. For example I've been using Chrome and XDA Labs and it's currently at 34°C.
Isn't it the same until 50°C? 40 isn't too excessive. also keep in mind that 40° will feel MUCH hotter than, say, 50 on a plastic back phone, just like you feel that a metal is colder than a piece of plastic, both at room temperature.
I'm not using a case (lost the one that came with the phone ) but I'd say that's what keeps my phone from getting too hot.
After some intensive gaming I've gotten the CPU to 65°C, but if you hold the device right the battery doesn't get too hot
But my CPU and Battery temperatures (for example on Cpu Z app) are usually the same.( In thermal section "bms" is the cpu temperature in this app) Also I don't know why the Cpu z app shows my bootloader status unknown. I have never even tried to unlock it.
Aj-jss said:
But my CPU and Battery temperatures (for example on Cpu Z app) are usually the same.( In thermal section "bms" is the cpu temperature in this app) Also I don't know why the Cpu z app shows my bootloader status unknown. I have never even tried to unlock it.
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You're just overreacting... The apps you are using are usually coded to work universally with as many phones as possible. Not all phones will use the same code for the thermistors or diodes for sensing temperature. For example Kernel Adiutor shows values that really make sense, for example 65°C CPU after gaming, some 40°C GPU on video playback, usually less than 35°C battery... They do make sense, and Kernel Adiutor probably needs root to get these values, while I bet CPU-Z does what it can to come up with those while not having root...
The bootloader status thing? Again, I wouldn't be surprised that ZTE did its own weird implementation of something in there, and the app isn't able to find whether it is locked or not. Why would you want to use an app to know if your bootloader is unlocked though? The phone has a big flashy warning if you unlocked it
There. That's after a bunch of video playback. Does it make sense?
Since I haven't got root access , I can't install this app. can you install cpu z and send a screenshot of these pages (System , Battery , Thermal) so that I can campare it to mine.
These are my info on cpu z after connect ing to mobile data , browsing , playing clash of clans (online strategy game),and watching 10 minutes 1080p movie.and my room temperature is 29°c.
I think that you kind of missed my point though
Having up to 50°C on the battery is not too bad, and it's not like you can do too much about it. If your CPU is binned lowest, and it thermal throttles all the time, what are you going to do about it, ask for a replacement?
40°C is not too high for a battery. And all those other sensors are probably from different points of the SoC but there aren't many ways of knowing which is which.
Thanks I got you but my friend's s7 edge gets hot really less than Axon 7 after doing the same it's still 34. And I usually don't use my Axon 7 out and I think if I use it under direct sunlight out there with34°c then it gets freakishly hot.
Man when the temperature reaches to 45°c, the battery health status changes from good to unknown.
These are the screenshots.
Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the ASUS ROG Phone 3 stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
My Phone maxes out at 47°C at heaviest of loads like playing PUBG WITH HDR+90fps in room temperature of 35°C and under just Ceiling fan.
While Playing Asphalt 9 under Same Circumstances the temperature never crossed 41°C
The Heating Dissipation is Spot on and it quite literally makes that lower portion hot but it's tolerable and it cools down quickly.
865+ phones will always heat up it's quite normal the good thing is how is the heat dissipation just so that the performance never throttles and it's very good in this device.
Normal Usage never makes the phone heat up from the ambient temperature much (+/-4°C)
While X Mode does heat up the phone i prefer not using it as it doesn't make much difference (as the phone is already too fast) while playing PUBG/Asphalt and it drains the battery quite quickly.
2shar_nande said:
My Phone maxes out at 47°C at heaviest of loads like playing PUBG WITH HDR+90fps in room temperature of 35°C and under just Ceiling fan.
While Playing Asphalt 9 under Same Circumstances the temperature never crossed 41°C
The Heating Dissipation is Spot on and it quite literally makes that lower portion hot but it's tolerable and it cools down quickly.
865+ phones will always heat up it's quite normal the good thing is how is the heat dissipation just so that the performance never throttles and it's very good in this device.
Normal Usage never makes the phone heat up from the ambient temperature much (+/-4°C)
While X Mode does heat up the phone i prefer not using it as it doesn't make much difference (as the phone is already too fast) while playing PUBG/Asphalt and it drains the battery quite quickly.
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yep couldn't agree more the X mode makes the battery drain much quicker i didn't like it at all....without using the X mode battery ain't draining much so yeah f them X modes...bout the heat mine doesn't goes above 38°C..but if im using the X mode it'll goes to 41°C while draining the batteries no thank you famiglia
2shar_nande said:
While X Mode does heat up the phone i prefer not using it as it doesn't make much difference (as the phone is already too fast) while playing PUBG/Asphalt and it drains the battery quite quickly.
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popoisama said:
yep couldn't agree more the X mode makes the battery drain much quicker i didn't like it at all....without using the X mode battery ain't draining much so yeah f them X modes...bout the heat mine doesn't goes above 38°C..but if im using the X mode it'll goes to 41°C while draining the batteries no thank you famiglia
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Yes you are correct ROG3 XMode 100% Doesn't make any difference when you Play PubG bcoz the phone already have 865 snapdragon and 650 gpu. that is why everytime i played PUBG i dont need to turn on XMODE.
I keep playing Normal mode Off XMODE Smooth+90hz in pubg even my ROG 1 first generation.
Hi guys! Have someone tried playing on an external monitor with mobile Dock? I got 50°C tonight playing Cod mobile max settings, even using mobile Dock fan at max speed.
heat on 865+ vs. 865 versions
Can anyone here speak on the differences between the 865+ and 865 versions in terms of heat? Do they both run uncomfortably hot or is the 865 better in that regards? thx in advance
Mine is heating like hell, Only 10 mins with Smooth+90FPS crosses 41°C. Any kernal to fix this?
fongyuen10 said:
Can anyone here speak on the differences between the 865+ and 865 versions in terms of heat? Do they both run uncomfortably hot or is the 865 better in that regards? thx in advance
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To answer my own question, I did end up getting the 865+ version and so far, even with 2+ hours of gaming (Honor of Kings, capped at 60fps, X-Mode off), my phone has yet to hit 40 C. Usually hovers around 38 C.
sendme2pop said:
Mine is heating like hell, Only 10 mins with Smooth+90FPS crosses 41°C. Any kernal to fix this?
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OK let me clearify, 41c is extremely cool. The reason the Phone feels hotter to the touch than other phones is because the Rog3 has an amazing cooling system. It uses the screen and chassy to cool down the components which is extremely effective. Other phones hit easily 90c+ on internal components.
The fact that the phone gets 40+c hot is proof that the cooling works 100%. If you feel its too hot for your taste, get a cover or use a controller.
This phone is really cool compared to what I used to have. Only time I felt the phone hot was when I made a huge amount of bench as the phone recognize bench apps and go overboard on thermals.
With any games I don't feel much heat, it is like if I was using another phone only for web browsing or read mangas. With the huge copper chamber (for a phone) and the real heat sink on the back this phone really stay cool.
I concur with Danishblunt, the phone does feels warmer (or hotter, depending on taste) when gaming, but as opposed to other phones, the warm sensation is more distributed on the back of the phone, rather than just on a localized spot.
This is due to the heatsinks/vapor chamber cooling, so it does its job.
I bought a case (not the aesthetic one included on the box) and it feels good. Temperature wise, the sensation is less warm than without case.