Battery temperature - Samsung Galaxy Note 8 Questions and Answers

When using my phone in my car a couple of days ago, I noticed it had stopped charging and the battery level was going down whilst it was plugged into the car charger. When I looked at the battery temperature, I saw that the charging stopped and the battery percentage dropped suddenly from 100% to 90% at a time when the battery temperature spiked (see attached graph).
The next day, the battery temperature spiked again and it again stopped charging until the temperature had dropped.
I'm presuming that there's a safety feature that cuts power to the battery if the temperature gets too high, but my question is why the temperature would get that high in the first place? The phone was mounted on my windscreen, but the weather isn't hot here in the UK at the moment. Could there be a hardware fault or is it more likely to be software?
Thank you
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Mine did the same a few days back I'm thinking maybe a lot of apps running in the back ground

Thanks for the reply. Did you do anything about it?
I'm going to return my phone. I expect that after the Note 7 they have implemented some serious battery thermal protection, but the battery shouldn't get so hot so easily.

Maybe you just got a bad device. I haven't seen a single report of batteries catching fire. Are you going to exchange it, or just call it quits?

Where you running GPS navigation and plenty of other background apps plus being connected to fast charger?
Sent from my SM-N950U using Tapatalk

I've already had one bad device - had wifi issues. This one, its replacement, is perfect in that respect. I'll swap it for another one though. If that has the same overheating issue, I'll accept that's just how it is with the Note 8.
It's overheated 3 times. Twice was in the car on the windscreen, using GPS and 4G data. The phone was on the windscreen, and may have had sun on it, but the weather isn't hot here at this time of year. I always use my phones in this way and don't ever remember having this issue with any of my previous phones, including my S7 Edge which also had fast charging.
The 3rd time was in bed, streaming HD video over wifi, under the duvet (so i didn't wake my wife up). It did get pretty hot under there.
All 3 times the screen was on max brightness and I was connected to a fast charger. In the car however, the battery wasn't fast charging, it was sitting at 100% and the temperature just shot up spontaneously as you can see from the first graph.
Thanks for the replies.

jack880 said:
I've already had one bad device - had wifi issues. This one, its replacement, is perfect in that respect. I'll swap it for another one though. If that has the same overheating issue, I'll accept that's just how it is with the Note 8.
It's overheated 3 times. Twice was in the car on the windscreen, using GPS and 4G data. The phone was on the windscreen, and may have had sun on it, but the weather isn't hot here at this time of year. I always use my phones in this way and don't ever remember having this issue with any of my previous phones, including my S7 Edge which also had fast charging.
The 3rd time was in bed, streaming HD video over wifi, under the duvet (so i didn't wake my wife up). It did get pretty hot under there.
All 3 times the screen was on max brightness and I was connected to a fast charger. In the car however, the battery wasn't fast charging, it was sitting at 100% and the temperature just shot up spontaneously as you can see from the first graph.
Thanks for the replies.
Click to expand...
Click to collapse
You conditions for the phone overheating is not because of the phone in what you last described. Using a device on max brightness, charging, GPS, and 4g LTE running with other apps in the background is means to an end. It will get hot and quit charging. There's even a prompt that says it may cause excess battery drainage.
Now add charging to that mix and you'll see that your battery is now discharging and charging at the same time. The battery is now in constant flux back and forth with no rest for cooling. Eventually it will overheat. By the way, just because it's cold outside doesn't mean the sun won't be hot. The sun doesn't heat the air around us, the surfaces the sun's rays touches does. That's why the hottest part of the day is later in the afternoon. It stays colder in the winter because the sun spends less time heating the surface as it's at a smaller radius going across the sky. If the device is on your dash charging, while getting hit with sun rays, and being used for GPS and data, that's a recipe for cooking.

jack880 said:
All 3 times the screen was on max brightness and I was connected to a fast charger. In the car however, the battery wasn't fast charging, it was sitting at 100% and the temperature just shot up spontaneously as you can see from the first graph.
Thanks for the replies.
Click to expand...
Click to collapse
It seems like it's the screen causing the shot in temperature especially when at maximum setting. Have you tried decreasing the screen brightness down to half or something else and see if that might be the issue? I can understand shooting temps in the car as the sun and windshield can intensify the heat. I personally don't have an issue with the phone overheating. Mine never spiked above 40'C. But then I don't have brightness set at full. At most it's below 25% (bright screens actually hurt my eyes). The only time it shoots to 100% is when it's outdoors in bright sun. But I don't have it on for long periods when outside.

Jammol said:
You conditions for the phone overheating is not because of the phone in what you last described. Using a device on max brightness, charging, GPS, and 4g LTE running with other apps in the background is means to an end. It will get hot and quit charging. There's even a prompt that says it may cause excess battery drainage.
Now add charging to that mix and you'll see that your battery is now discharging and charging at the same time. The battery is now in constant flux back and forth with no rest for cooling. Eventually it will overheat. By the way, just because it's cold outside doesn't mean the sun won't be hot. The sun doesn't heat the air around us, the surfaces the sun's rays touches does. That's why the hottest part of the day is later in the afternoon. It stays colder in the winter because the sun spends less time heating the surface as it's at a smaller radius going across the sky. If the device is on your dash charging, while getting hit with sun rays, and being used for GPS and data, that's a recipe for cooking.
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Click to collapse
neograndizer said:
It seems like it's the screen causing the shot in temperature especially when at maximum setting. Have you tried decreasing the screen brightness down to half or something else and see if that might be the issue? I can understand shooting temps in the car as the sun and windshield can intensify the heat. I personally don't have an issue with the phone overheating. Mine never spiked above 40'C. But then I don't have brightness set at full. At most it's below 25% (bright screens actually hurt my eyes). The only time it shoots to 100% is when it's outdoors in bright sun. But I don't have it on for long periods when outside.
Click to expand...
Click to collapse
Thanks for the replies. I hear what you're saying about screen brightness and sunlight etc, but I've been using a phone in exactly the same way since I first got a smartphone in 2007 or whenever it was. On long car journeys, I always have the phone on the windscreen with the screen at maximum brightness, with GPS and 4G on, plugged into the car charger, and I've never experienced a a phone overheating and cutting power to the battery.
As an experiment, I've got the phone to overheat twice more, without being in the car. I was watching a 4K video under the duvet in the bed, so was pretty warm, with the screen on full brightness and the fast charger plugged in.
So you are both saying you think my phone is behaving normally, despite previous phones not overheating in similar circumstances?
Thanks again

jack880 said:
So you are both saying you think my phone is behaving normally, despite previous phones not overheating in similar circumstances?
Thanks again
Click to expand...
Click to collapse
I'm not certain as my phone doesn't overheat. It does feel warm in the back sometimes, but tends to cool down and my temps never peaked at the spikes you experience. Another troubleshooting suggestion is to try safe mode to rule out apps causing the overheating issue. And did your first Note 8 give you this overheat issue as well or you were not able to investigate due to the Wi-Fi problems it had? Unfortunately, it's hard to say how the battery should behave as it differs from user to user in how they use their device.

neograndizer said:
I'm not certain as my phone doesn't overheat. It does feel warm in the back sometimes, but tends to cool down and my temps never peaked at the spikes you experience. Another troubleshooting suggestion is to try safe mode to rule out apps causing the overheating issue. And did your first Note 8 give you this overheat issue as well or you were not able to investigate due to the Wi-Fi problems it had? Unfortunately, it's hard to say how the battery should behave as it differs from user to user in how they use their device.
Click to expand...
Click to collapse
I didn't notice it with my first Note 8, but didn't use it in the same conditions.
I'm still within the period when I can just take it back to the shop and exchange it for a brand new one, so I'll do that. if the new one reaches the same temperatures under the same conditions, I'll just accept that that's how the Note 8 is.
It may be that my past phones have reached the same temperatures, but the battery protection on the Note 8 is more aggressive, so the other phones may have continued to draw power from the charger at a temperature at which the Note 8 doesn't....

jack880 said:
Thanks for the replies. I hear what you're saying about screen brightness and sunlight etc, but I've been using a phone in exactly the same way since I first got a smartphone in 2007 or whenever it was. On long car journeys, I always have the phone on the windscreen with the screen at maximum brightness, with GPS and 4G on, plugged into the car charger, and I've never experienced a a phone overheating and cutting power to the battery.
As an experiment, I've got the phone to overheat twice more, without being in the car. I was watching a 4K video under the duvet in the bed, so was pretty warm, with the screen on full brightness and the fast charger plugged in.
So you are both saying you think my phone is behaving normally, despite previous phones not overheating in similar circumstances?
Thanks again
Click to expand...
Click to collapse
I am slightly reluctantly saying yes. The reason I say that is, using the 4K video example, this device already runs the screen at a high resolution, the brightness levels are totally different on this device compared to others. Do you have a case on the device? What kind of case? And also the fast charging element. My Pixel XL used to overheat as well when under stress levels such as what you are describing. I will try to duplicate those same situations you have described and let you know what I find. I have heated up my Note 8 already but it was under different conditions. Was running a game at full specs while having a youtube video at it's highest resolution running in the background on YouTube Red, all while copying files from the internal storage to the SD card and fast charging. It didn't overheat but performance did take a slight hit whenever the game screen was populated with a lot of enemies. The game was SkyForce II.
Personally, as much as I love the new devices, I miss the hardcore-ness of the older devices. One of the absolute best phones I have ever owned was the LG G Pro. That thing ran like a champ under the most stressful conditions and battery life that would make the Xperia Z line drool!!! :silly:
Fast charging is great to have but I think it puts a very huge tax on the battery especially if the device is being heavily used while occurring. I recommend not fast charging your device while watching a 4K video for an extended period of time.

Hi. Thanks again. I did have a case on, and quite a hardcore case. Was this one:.
Samsung Galaxy Note 8 Case, Spigen® [Tough Armor] Galaxy Note 8 Case with Kickstand and Extreme Heavy Duty Protection and Air Cushion Technology for G https://www.amazon.co.uk/dp/B073R7TLHV/ref=cm_sw_r_cp_apap_qIJ9ZvmkuQ92q
That may have made a difference. If the overheating is normal behaviour, I'll just accept that's the price we pay for the screen and performance of the Note 8, and I'll live with it. I should find out tomorrow when i get a replacement phone.
If the phone is connected to a fast charger, but the batter is sitting at 100%, and has been for a while, would you still consider the phone to be undergoing fast charging, as the battery is being discharged and charged at the same time, thereby maintaining the level at 100%?
I've just checked again and the battery got to about 46 deg C (115 deg F) which does seem pretty hot...

jack880 said:
Hi. Thanks again. I did have a case on, and quite a hardcore case. Was this one:.
Samsung Galaxy Note 8 Case, Spigen® [Tough Armor] Galaxy Note 8 Case with Kickstand and Extreme Heavy Duty Protection and Air Cushion Technology for G https://www.amazon.co.uk/dp/B073R7TLHV/ref=cm_sw_r_cp_apap_qIJ9ZvmkuQ92q
That may have made a difference. If the overheating is normal behaviour, I'll just accept that's the price we pay for the screen and performance of the Note 8, and I'll live with it. I should find out tomorrow when i get a replacement phone.
If the phone is connected to a fast charger, but the batter is sitting at 100%, and has been for a while, would you still consider the phone to be undergoing fast charging, as the battery is being discharged and charged at the same time, thereby maintaining the level at 100%?
I've just checked again and the battery got to about 46 deg C (115 deg F) which does seem pretty hot...
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Click to collapse
That's a high temp, but nothing compared to the Nexus 6P!
Edit: Xda app didn't save my post, wow.
I'm not typing all that over, lol. Test the new phone you get and see what happens.

Related

Liquid is too hot?

I mean really hot! Normal usage is ok but when I play games or use web browser for half an hour, it turns hot (back and front, lower body). Does anyone have the same problem?
Another thing is the charging time is too long!
Here are the answers from other forum:
Yes the liquid tends to warm up at the lower back half and once that happens, theres no way you can recharge it till it cools down. Feedback from acer engineers theres a temp sensor right behind the battery and if the temp goes above 40c...it'll stop charging. I think that maybe is one of the reason Acer didnt really launch this model worldwide?
Click to expand...
Click to collapse
Phones with Snapdragon chips in them get warm. The Desire does it; the Nexus does it. I wouldn't worry. My nexus takes about two hours to charger to full.
Click to expand...
Click to collapse
topifone said:
I mean really hot! Normal usage is ok but when I play games or use web browser for half an hour, it turns hot (back and front, lower body). Does anyone have the same problem?
Another thing is the charging time is too long!
Click to expand...
Click to collapse
I have the same problem, its very hot, im worried for the health of cpu and battery..
At least for the charging troubles, using setcpu I defined to run at 500 (around) MHZ when on charge and no overheating then, plugged from evening till morning or using gps for 2,30 hrs with charge connected. It stills warm but no overheating... Tips from EvIl rom, not mine
The lower part is where the CPU is, battery heat would be from the upper back part. Also computer USB charging is slower than wall socket charging.

[Q] X gets hot while charging? normal?

today is the 4th day with my Moto X...and i'm a little worried about my phone because of my battery issues.
the first day i got my phone, it came with 50% of charge and after some usage it got down to 14% but then, suddenly it dropped to 3%. I have some experience with this issue in my previous android phone, so i just tried a charge cycle and it is pretty much ok now.
BUT THEN
yesterday, my wifi was on and i was charging my phone and it went really hot, according to Antutu Benchmark the temperature was 45.1°C (113.18°F)... i quickly unplugged the phone, and it cooled down within 3 mins..
now today morning,
i made the phone shut down itself by draining its battery, kept on charge, i was not ussing it, only wifi was on and the temprature went 44°C (the charge was around 30-40%).. i left the phone as it is.. and then when the phone charged up to 92% it got better (37°C)
IS THIS ALL NORMAL? DO YOU GUYS FACE THIS?
if not, i'll have to replace this, so please help...
apart from this, i noticed that the device runs for a pretty long time at 1% charge
My phone definitely gets warm when charging. I don't have any apps to tell me the exact temperature, but it doesn't scare me. 45 °C is far below what the electronics can handle, and I wouldn't be concerned, it is well inside normal operating range in my opinion.
My battery is currently 102°f on network surfing the net unplugged. I've seen it as high as 113° and have not had any issues with the battery. I'm still getting 24+ hours between charges.
garciaw said:
My phone definitely gets warm when charging. I don't have any apps to tell me the exact temperature, but it doesn't scare me. 45 °C is far below what the electronics can handle, and I wouldn't be concerned, it is well inside normal operating range in my opinion.
Click to expand...
Click to collapse
The Tallest said:
My battery is currently 102°f on network surfing the net unplugged. I've seen it as high as 113° and have not had any issues with the battery. I'm still getting 24+ hours between charges.
Click to expand...
Click to collapse
have you guys seen your X go as hot as 54°C??
its a moth with my Moto X, and it gets hot REALLY EASILY, like do a little bit video recording or take some photo spheres or maybe just play candy crush while charging it goes 48°C
and once... i kept a lot of files for upload on drive.. and it was on charge... nothing else...i kept the phone aside...and within 10mins it was hard to hold.. 54°C
i am seriously worried.. but not willing to go for a replacement, since the service in my country is too bad.. any help? :crying:
Abhinav Valecha said:
have you guys seen your X go as hot as 54°C??
its a moth with my Moto X, and it gets hot REALLY EASILY, like do a little bit video recording or take some photo spheres or maybe just play candy crush while charging it goes 48°C
and once... i kept a lot of files for upload on drive.. and it was on charge... nothing else...i kept the phone aside...and within 10mins it was hard to hold.. 54°C
i am seriously worried.. but not willing to go for a replacement, since the service in my country is too bad.. any help? :crying:
Click to expand...
Click to collapse
New phone gets hot in the beginning. Mine did and now it doesn't.Also avoid using your phone while charging , IT damages the battery .
DaRkRhiNe said:
New phone gets hot in the beginning. Mine did and now it doesn't.Also avoid using your phone while charging , IT damages the battery .
Click to expand...
Click to collapse
Batteries naturally degrade over time. That simply speeds up the process slightly (light tasks) or slightly more (gaming). I've done it on all my 7 smartphones (including my first from 2011) and all the stock OEM batteries are working to this day.
I've even gamed heavily (when I enjoyed those things..) on my S2 i9100 and iphone 4s and both those phones get awesome battery life to this day. The S2 was even left on a shelf in the garage over an entire winter lol.
It's just the word damages could misguide people so I wanted to clarify.
But charging temperature can vary between two identical smartphones. My first iphone 5 was rather cool to the touch while charging where as the warranty replacement I got (dust under the lens, they swapped it for a new one) I got tends to be warm and even slightly uncomfortable to hold while using the device moderately and charging at the same time (same charger). It's just variance in manufacturing. No two processors are alike, no two batteries are alike.
thanks for your reply everyone... i guess i'll have to live with it..
maybe i'll just avoid using my phone while charging..

Bizzare Battery Issues

I've been experiencing random power-off events when the battery indicator shows roughly 35% or lower. Seemingly random percentage, and it doesn't do it all the time, Sometimes I can run it down to 5% and it's fine. This seems to be a well documented phenomenon here on XDA with many people coming to the conclusion that it's a software problem, so I've just been living with it. If I don't use the crap out of my phone it will only happen once every couple weeks.
But today, oh boy. I've never seen or read about anything like this. I've attached a screenshot of my battery history today and I'll describe my phone usage to help make sense out of the battery history graph.
Phone = XT1095 Pure Edition/Unlocked/MotoMaker, 32GB, Stock Android 6.0, rooted, TWRP, no battery optimizer/conditioner programs. I use a wireless charging adapter under a TPU cover to charge on a Qi charging base at night and an Anker car charger for emergencies like today. The wireless charging adapter charges the phone slowly and seems to make the random power-off problems less bad.
Taken off the charger at 10am and used normally until 3pm (A to B). From 3:15pm to 3:50pm I streamed mp3 music stored on the phone to my bluetooth headset while running MapMyRide (B to C). MapMyRide pounds the crap out of GPS because it precisely and continuously tracks your movement. I also had intermittent cell signal which causes high battery usage. After I finished my ride I opened the camera app with a twist to take a picture and the phone shut off. I powered it back on and it said 50% battery. I opened the camera app again with a twist and again it shut off. I powered it back on once more and it said 5% battery and put itself into battery saver mode (D). I gave up on the picture and put the phone on my car charger and drove to my friends' house. When I arrived it was somewhere between 25-30% (E). I hung out for two hours and didn't use my phone at all (except to check the time) and DID NOT charge it during that time, yet the battery graph goes UP during those two hours. When I got back in my car I plugged the phone back into the car charger and it jumped up to 60% immediately (F). I drove home with it on the car charger and unplugged it (G). Almost no usage the rest of the night until now (H). The camera app works fine, I just tested it.
If anyone has any idea what's wrong here, bad battery, bad charging circuit, software problem, phone with one foot in the grave, please chime in. I don't want to spend money on a new battery (and also on a new battery cover of course because I want a wooden one) just to still have the same problem, or worse problems if I unwittingly buy a piece of crap Chinese knockoff battery.
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DrvLikHell said:
If anyone has any idea what's wrong here, bad battery, bad charging circuit, software problem, phone with one foot in the grave, please chime in. I don't want to spend money on a new battery (and also on a new battery cover of course because I want a wooden one) just to still have the same problem, or worse problems if I unwittingly buy a piece of crap Chinese knockoff battery.
Click to expand...
Click to collapse
You're describing what happened to me. Replaced new stock battery and problem was solved.
I'm guessing you're having the same problem.
renzs said:
You're describing what happened to me. Replaced new stock battery and problem was solved.
I'm guessing you're having the same problem.
Click to expand...
Click to collapse
I was thinking possibly the battery too. So many other people said their problem was in software so I wasn't sure, but they also didn't have the bizarreness I described.
Where did you get a new battery for yours?
DrvLikHell said:
Where did you get a new battery for yours?
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Click to collapse
Got it from ebay from a seller in Spain. There are some in the US but wouldn't ship to my country.
All's good now.
Oh, btw, quickchargers and turbochargers will cause & worsen the problem. I'm now only using stock charger.
renzs said:
Got it from ebay from a seller in Spain. There are some in the US but wouldn't ship to my country.
All's good now.
Oh, btw, quickchargers and turbochargers will cause & worsen the problem. I'm now only using stock charger.
Click to expand...
Click to collapse
Indeed it was the battery. I did the same exact thing that caused the issues before, using the same exact apps for the same amount of time and all was well. I got a used oem Motorola battery because all of the new batteries listed look like fakes. Out of 50 or so listings, there were only three or four different serial numbers. The place I got my replacement from uses a Cadex battery tester to ensure the health of the battery, and I've had good results buying Motorola parts from them before.
If it is a battery problem and not a software problem, then I can confirm that the ones on eBay are probably fake. I'm on my third battery in this phone and the one I'm on now consistently dies at 26 ish % and has done so since a week after I installed it. Let me know if you have success and I might try a fourth battery.
Was it cold out when it died? I believe the root cause is a low voltage shutoff built into the hardware of this phone. Very rarely do I see the " phone shutting down" screen, it just dies.
Even though our phones may have plenty of capacity, its the slight weakness in cold weather or running the CPU too hard that causes a low voltage shutdown. If someone has a good source of batteries for this phone let us know.
At this point I just know when it gets to 40% I need to be prepared for it to die. Looking at a replacement soon.
shawndak said:
Was it cold out when it died? I believe the root cause is a low voltage shutoff built into the hardware of this phone. Very rarely do I see the " phone shutting down" screen, it just dies.
Even though our phones may have plenty of capacity, its the slight weakness in cold weather or running the CPU too hard that causes a low voltage shutdown. If someone has a good source of batteries for this phone let us know.
At this point I just know when it gets to 40% I need to be prepared for it to die. Looking at a replacement soon.
Click to expand...
Click to collapse
It was in the 20's today. Mine shutdown at 50 percent when I went into the browser, Firefox Nightly. I can restart it but if I try to go into the browser, shuts off without warning again.
It's certainly a battery issue not software. It happens on stock or custom ROMs. After replacing my battery with a new one bought from eBay,it solved all those early shutting down issues.
Someone tried using this battery?
https://m.aliexpress.com/s/item/328...1-80c1-9f1182245f48&rmStoreLevelAB=5#autostay
Im experiencing same problemy and looking for a new battery.
huatz84 said:
It's certainly a battery issue not software. It happens on stock or custom ROMs. After replacing my battery with a new one bought from eBay,it solved all those early shutting down issues.
Click to expand...
Click to collapse
I'm surprised with how bad my battery has gotten, the battery hasn't expanded yet (judging by the back cover gaps or lack there of).
Visi0nofExcellence2 said:
I'm surprised with how bad my battery has gotten, the battery hasn't expanded yet (judging by the back cover gaps or lack there of).
Click to expand...
Click to collapse
I wonder what makes our battery broken. I saw a lot of issues on battery. I bought my X2 in used condition. So,I don't know what cause all these issues coz the battery was bad at the beginning.
huatz84 said:
I wonder what makes our battery broken. I saw a lot of issues on battery. I bought my X2 in used condition. So,I don't know what cause all these issues coz the battery was bad at the beginning.
Click to expand...
Click to collapse
Normal wear and tear imo. These phones at the oldest are 3 years old. It's just that the software or sensors or combo can't pick up the reduced capacity, causing the random shut downs. Cold weather certainly doesn't help.
Visi0nofExcellence2 said:
Normal wear and tear imo. These phones at the oldest are 3 years old. It's just that the software or sensors or combo can't pick up the reduced capacity, causing the random shut downs. Cold weather certainly doesn't help.
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Click to collapse
My Moto G is 4 years old and the battery life is still great. No random shutdowns and it can even stand on 1%.
I've been looking into this more and am discovering that it shuts down around 3.0v. The thing is at 30% the battery pack is like 3.4-3.6v. If you launch a power hungry app or go out into the cold, it easily drops below 3. I lowered the maximum CPU to 2ghz and has seemed to help. Shut downs happen at 20% instead of 30-40%. I'm going to lower the cpu even more to see if there's a sweet spot.
huatz84 said:
It's certainly a battery issue not software. It happens on stock or custom ROMs. After replacing my battery with a new one bought from eBay,it solved all those early shutting down issues.
Click to expand...
Click to collapse
What seller did you buy it from? Are they still selling? How long ago did you install it? I've tried batteries from two different sellers with no improvements. I would love for this problem to have a solution.
Also I think I remember reading somewhere that the reason for these issues is that the battery is right up against the processor and the heat from the processor causes the battery to wear differently.
shawndak said:
I've been looking into this more and am discovering that it shuts down around 3.0v. The thing is at 30% the battery pack is like 3.4-3.6v. If you launch a power hungry app or go out into the cold, it easily drops below 3. I lowered the maximum CPU to 2ghz and has seemed to help. Shut downs happen at 20% instead of 30-40%. I'm going to lower the cpu even more to see if there's a sweet spot.
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Click to collapse
I think victara clock speed is too high. By lowering the cpu speed,maybe it can fix all these issues. Nice trick,btw.
jryx said:
What seller did you buy it from? Are they still selling? How long ago did you install it? I've tried batteries from two different sellers with no improvements. I would love for this problem to have a solution.
Also I think I remember reading somewhere that the reason for these issues is that the battery is right up against the processor and the heat from the processor causes the battery to wear differently.
Click to expand...
Click to collapse
I don't know the seller's name. My friend bought it for me. I installed it three months ago. And it's still working fine till today.
Mic43 said:
Someone tried using this battery?
Im experiencing same problemy and looking for a new battery.
Click to expand...
Click to collapse
Never seen that one. I read a lot about changing batteries and many people said that if you do not use an original OEM Motorola battery that it will not fit right and it can cause problems putting the phone back together, as well as a problem with the speaker. It's because aftermarket batteries are very slightly thicker and they don't have the proper curve, or any curve, and so they don't fit right.
huatz84 said:
It's certainly a battery issue not software. It happens on stock or custom ROMs. After replacing my battery with a new one bought from eBay,it solved all those early shutting down issues.
Click to expand...
Click to collapse
Well, it's not entirely a battery issue. My replacement battery fixed the problem that I was having where my phone would shut off if I used the GPS heavily. But Today I experienced an early battery shut down issue again.
shawndak said:
I've been looking into this more and am discovering that it shuts down around 3.0v. The thing is at 30% the battery pack is like 3.4-3.6v. If you launch a power hungry app or go out into the cold, it easily drops below 3. I lowered the maximum CPU to 2ghz and has seemed to help. Shut downs happen at 20% instead of 30-40%. I'm going to lower the cpu even more to see if there's a sweet spot.
Click to expand...
Click to collapse
I didn't think of this, silly me. Apple was busted last week for secretly underclocking their iPhone's CPUs when the system detected the battery degraded. To prevent this exact issue of random shutdowns.
huatz84 said:
I think victara clock speed is too high. By lowering the cpu speed,maybe it can fix all these issues. Nice trick,btw.
Click to expand...
Click to collapse
Yep too high for the degraded battery. When the batteries were healthy it was fine.
---------- Post added at 09:18 AM ---------- Previous post was at 08:55 AM ----------
A user on the Nexus 6 section is experiencing the same issue. For those not aware the Nexus 6 is like a big brother to the 2014 Moto X, same design. I found this post interesting about replacement batteries, as again this is the same issue with replacement batteries for the 2014 Moto X.
LaGgY_42o said:
Yep, bad battery, had to replace mine at the start of the year, if it's at 30-40% don't expect much more out of it, the battery can't put out the required voltage the system needs to hit clock speeds. Could limit clock speeds for a very temp fix if desperate lol.
Far as the battery goes, my advice is get one that's already bent into shape / curved. I made the mistake of getting a flat one and had to curve it myself which is basically impossible. Turns out the funny thing with the Nexus 6 is the shape of the battery fully dictates the shape of the midframe, if it's not perfect then the midframe bends to match the battery not the other way around, and you can imagine what this does to the entire phone since having a warped midframe + battery will make the entire device to fit the same form. Sitting mine on a level surface it is clear it is no longer straight. I've tried to redo it many times but repeatedly bending a battery is not very advisable :-/ lol.
Click to expand...
Click to collapse
As I type this I am at 10%! I think this is confirmed CPU draws too many amps for a slightly degraded battery!! Right now I'm using kernal auditor and it applies settings after boot. You guys are much smarter than me though, is there a way to flash CPU settings so it applies even when booting??
Current settings are 300mhz min, 1500 input and 2000max, zero lag with Facebook, youtube, camera, ect. 2500mgh is too high!

Phone becoming hot while charging

Hi guys so the note 9 is becoming hot while charging it has started happening the last couple of days. When I first got the phone on release it would never get hot. Any ideas?
Sent from my SM-N960F using Tapatalk
Have you noticed any change in charging times? That heat = wasted electricity which has to come from somewhere. There is only two places that heat could be coming from (afaik) are the processor or battery and it's charging circuity. Could be that the phone is doing a bunch of updates when you plug in the charger, if you have auto updates on or perhaps you had fast charging turned off before.
No updates phone has all connectivity turned off back gets really hot and yesterday the charger stopped charging the phone so I got the charger brick replaced and charges fine but seems very slow to charge and fast battery discharge
Sent from my SM-N960F using Tapatalk
Turn off fast charging. I believe, even normal slow charging is fast compared to iphone 8 plus fast charging.
charging any device while it's on will probably produce some heat.
just seems logical and I don't consider it an issue worth worrying about. it all depends of what your measure of hot is.
if your cable, port and charger are all mint, then all should be good.
if your cat bit the cable then look no further.
your alternative:
shut phone off and charge it.
it won't heat and probably charge in 20-30 mins to full charge from 0%
if it still got hot while charging at off then you may have hardware issue with equipment/phone
bober10113 said:
charging any device while it's on will probably produce some heat.
just seems logical and I don't consider it an issue worth worrying about. it all depends of what your measure of hot is.
if your cable, port and charger are all mint, then all should be good.
if your cat bit the cable then look no further.
your alternative:
shut phone off and charge it.
it won't heat and probably charge in 20-30 mins to full charge from 0%
if it still got hot while charging at off then you may have hardware issue with equipment/phone
Click to expand...
Click to collapse
The heat is caused by the charging process, so the phone should heat up whether it's turned on or not. The voltage has to be dropped from the 5/9V input down to the ~4V that the phone battery charges to and that is not a 100% efficient process. The internal resistance of the battery itself also causes some heat.
Also there's no way you'd charge a Note 9 from 0 - 100% in 20-30 mins. Even factoring in no charging efficiency loss, you're looking at 51 minutes to charge a 15.4Wh battery with the 18W from the Samsung charger.
willhemmens said:
The heat is caused by the charging process, so the phone should heat up whether it's turned on or not. The voltage has to be dropped from the 5/9V input down to the ~4V that the phone battery charges to and that is not a 100% efficient process. The internal resistance of the battery itself also causes some heat.
Also there's no way you'd charge a Note 9 from 0 - 100% in 20-30 mins. Even factoring in no charging efficiency loss, you're looking at 51 minutes to charge a 15.4Wh battery with the 18W from the Samsung charger.
Click to expand...
Click to collapse
I dont need any convincing lol
but the heat we can actually perceive on the phone case while it's on versus it's off is 2 things. dont think we can feel it while it's off. if I crack the phone open and touch the battery then yes obviously.
now for the 0 to a 100 in 20 to 30 mins while phone is off, I'll time it. but I'm pretty sure I'm not off by that much. again I'm not the one needing convincing in this thread.
bober10113 said:
I dont need any convincing lol
but the heat we can actually perceive on the phone case while it's on versus it's off is 2 x things. dont think we can feel it while it's off.
now for the 0 to a 100 in 20 to 30 mins while phone is off, I'll time it. but I'm pretty sure. you should try it. again I'm not the one needing convincing in this thread.
Click to expand...
Click to collapse
Your phone should be almost exactly as hot whether it's turned on and not being used or turned off. The tiny amount of energy it takes to run a phone while it's dozing is nothing compared to the amount of energy dumped into the phones body while it's charging.
I'll happily test it but unless the charger suddenly starts outputting more than twice the rated amount of power into the phone when it is turned off, it's just not physically possible. Not trying to convince you, just trying to correct misinformation.
willhemmens said:
Your phone should be almost exactly as hot whether it's turned on and not being used or turned off. The tiny amount of energy it takes to run a phone while it's dozing is nothing compared to the amount of energy dumped into the phones body while it's charging.
I'll happily test it but unless the charger suddenly starts outputting more than twice the rated amount of power into the phone when it is turned off, it's just not physically possible. Not trying to convince you, just trying to correct misinformation.
Click to expand...
Click to collapse
guess I did need convincing after all.
while powerdoff :
60 min = 81%
and it did get warm
guess we live and learn.
thanks
Mine is becoming a little hot while in wireless charging pad, and after complete the charge (at 100%)
That is normal however it should cool down once your battery level is charged above the 50% mark.
Try installing a battery log app. I use this one and it records battery temp so you can look at that after it is done charging to see how hot it actually got.
https://play.google.com/store/apps/details?id=kr.hwangti.batterylog
Sent from my SM-N960U1 using XDA Labs
Perfectly normal. Especially if you use the phone while charging (don't do that)

Question Does the phone become hot during fast charging?

Dear all!
I've got this phone since a few days and I'm pretty happy!
But I have got one question: during the fast charging, the tel becomes hot. I thought it was normal, but Oppo clearly explains that the phone does not do that!
Do you have this issue, too?
The phone becomes cold really quickly after having a 100% battery, but I'm still wondering if all is ok.
Thanks for your feedback.
PYB
Hi we're meeting
Yes, I'm trying to find somebody with the same issue!
No it doesn't get hot compared to my former Galaxy's
It gets a bit warm but not hot...i would say normal thing. Had oneplus 6t with 20W charging and during charging the charger was medium hot and phone was just a bit warm.
So i dont see the difference between x3 pro and op6t in terms of charging (except of course the time needed to be fully charged)
@pyb92 you know for you it might be "hot" but my perception might tell "a bit warm"....so this is a subjective thing unless you measure the temperature.
Hello I have no heat problem either at the time with my O + 6T or today oppo find x3 pro.
Thank you all for your answers. Yes it's subjective, and I think I would not consider it's a pb if Oppo did not communicate on the fact that it does not get warm at all!
What I can say is that the phone is warmer than my Note 10 Plus.
With another charger (less powerful), it's the same result.
pyb92 said:
Dear all!
I've got this phone since a few days and I'm pretty happy!
But I have got one question: during the fast charging, the tel becomes hot. I thought it was normal, but Oppo clearly explains that the phone does not do that!
Do you have this issue, too?
The phone becomes cold really quickly after having a 100% battery, but I'm still wondering if all is ok.
Thanks for your feedback.
PYB
Click to expand...
Click to collapse
Fasting will probably not enable under 60°F.
Avoid fast charging if the battery temperature is below 82F as it can cause Li plating which will permanently degrade the cell.
Never attempt to charge if below 40F
Best battery start temperature in 85F in the case of my Note 10+, most phones are likely similar.
Charging is an electrochemical reaction that requires sufficient temperature to work properly.
Avoid letting the charging temperature climb above 100F. Use air and/or a damp microfiber cloth to stabilize the temperature below 100F, somewhere in the 85-99F range preferably.
In this range it will fast charge the fastest.
Avoid letting the charge drop below 30% or charging past 90% as it stresses the cell needlessly.
A charge cutoff of 62-80% is best; Li's wuv frequent midrange power cycling. 40 to 65% is near ideal for longevity.
Don't worry too much as these batteries aren't that hard to replace. When the capacity drops below 80% of its original, just replace it.
Sudden drops in battery capacity in the span of days and/or erratic fast charging indicates a battery failure. Replace it soon.
Any signs of case swelling strongly indicates a battery failure, replace it asap☠
Most batteries rest directly on the expensive display which can be damaged by battery swelling. Aged batteries near the end of their lifespan cutoff of 80% have a greater chance of suffering sudden failures as well as a thermal runaway which will destroy the phone.
Depending on it's usage throughout it's life the Li may last months or many years. Regardless replace it when it reaches the end of it's service life. My 10+ lasted about 1.5 years of heavy usage in a desert environment. $50 for a new battery and the phone is running like it did when new... what's not to like?
That you DC?
Hi...Don't worry, this is normal. Especially for mobile phones that support quick charging (9V2A) and super-fast charging (5V4. 5A, 10V4A), the charging temperature will be higher than the normal charging (5V2A). ... One of the most common reasons for heating up of device during charging is their continuous use...
blackhawk said:
Fasting will probably not enable under 60°F.
Avoid fast charging if the battery temperature is below 82F as it can cause Li plating which will permanently degrade the cell.
Never attempt to charge if below 40F
Best battery start temperature in 85F in the case of my Note 10+, most phones are likely similar.
Charging is an electrochemical reaction that requires sufficient temperature to work properly.
Avoid letting the charging temperature climb above 100F. Use air and/or a damp microfiber cloth to stabilize the temperature below 100F, somewhere in the 85-99F range preferably.
In this range it will fast charge the fastest.
Avoid letting the charge drop below 30% or charging past 90% as it stresses the cell needlessly.
A charge cutoff of 62-80% is best; Li's wuv frequent midrange power cycling. 40 to 65% is near ideal for longevity.
Don't worry too much as these batteries aren't that hard to replace. When the capacity drops below 80% of its original, just replace it.
Sudden drops in battery capacity in the span of days and/or erratic fast charging indicates a battery failure. Replace it soon.
Any signs of case swelling strongly indicates a battery failure, replace it asap☠
Most batteries rest directly on the expensive display which can be damaged by battery swelling. Aged batteries near the end of their lifespan cutoff of 80% have a greater chance of suffering sudden failures as well as a thermal runaway which will destroy the phone.
Depending on it's usage throughout it's life the Li may last months or many years. Regardless replace it when it reaches the end of it's service life. My 10+ lasted about 1.5 years of heavy usage in a desert environment. $50 for a new battery and the phone is running like it did when new... what's not to like?
Click to expand...
Click to collapse
Wow, this is the kind of answer I look for in a forum, informative and interesting, thank you.

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