When I keep my phone on & just charge it up while its idle, when its at 100%, the phone is hot to the touch. Once I take it off, it cools off in 5-10 minutes. It also starts to overheat when I play games on it for at least 5 minutes. What could be the problem?
Do you have a custom rom or kernel on the phone. Mine gets mildy warm every now and again but nothing serious.
Id suggest reverting back to stock rom using your ruu and use it for a bit to see if it happens again.
i had a similar problem. my phone would overheat and not charge or charge fast enough. also after a short use the battery level would plummet. i fix the problem by changing to a new charging plug.
It shouldn't get that warm at all.
Infact, I noticed that it actually cooled down once I plugged it into the charger. I was playing a 3D game and I noticed it was getting warm, but also the battery was getting low, so I plugged it in and kept going for a bit longer, the phone actually started cooling down. I thought it was the game making the hardware heat up, but in fact, it was the battery heating up due to the power drain
Perhaps a custom rom could cause it, but I am already running mikes 6.5.2 with the 1.5Ghz firmware. But im sure others will vary.
Perhaps, if nothing else, and you're ok with taking the back off the phone, check the contacts, both on the battery and the phone, make sure they are clean. Resistance can cause heat.
hey guys, it think my phone is becoming hotter than usual while charging, i would just like to ask what is the normal temperature during charging and during heavy usage such as playing 3d game(not charging)
The Nexus has an issue with heating up. Mine does the same. If you feel it is getting too hot, then shut phone down for a bit. Temp shouldn't get more than 120F. It can, but keep that number as a safeguard. Hope this helps.
ok, tnx a lot..will try to monitor the temp regularly
Anyone having charging issue. I ran my shield battery down when I first got it. Then I plug it in to charger. Its been charging over 8 hours and still not at 100 percent. took it off charge at 80 percent. No way it should take this long. I read on reviews it took like 4 to 5 hours.
evobunny said:
Anyone having charging issue. I ran my shield battery down when I first got it. Then I plug it in to charger. Its been charging over 8 hours and still not at 100 percent. took it off charge at 80 percent. No way it should take this long. I read on reviews it took like 4 to 5 hours.
Click to expand...
Click to collapse
You used the charger that it came with? And you're not playing games the entire time it's charging, right?
agrabren said:
You used the charger that it came with? And you're not playing games the entire time it's charging, right?
Click to expand...
Click to collapse
yes I use charger that came with it. and it was charging over night when I was sleeping.
That sounds really odd. What does the battery usage say for the device? Was it awake the whole time? Does it think it was charging all night?
Sent from my HTC One using XDA Premium HD app
I feel like that has happened on my nexus 7 before. I bet it is an android thing. I would try again and see if it acts up a second time.
agrabren said:
That sounds really odd. What does the battery usage say for the device? Was it awake the whole time? Does it think it was charging all night?
Sent from my HTC One using XDA Premium HD app
Click to expand...
Click to collapse
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
evobunny said:
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
Click to expand...
Click to collapse
If you go into the "Battery Info" and touch on the graph area, it'll show you below some bars of time spent on different functions (like charging)
evobunny said:
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
Click to expand...
Click to collapse
1. Sometimes the battery indicator on Android can take a while to figure out your battery. It might drop 5 percent in ten minutes then take an hour to drop 5 more.
2. The vent area on my Shield seems warmer than the surrounding plastic even when in sleep for a while, so it may be drawing more power than is charging. Just try turning it off and charging it.
oushidian said:
1. Sometimes the battery indicator on Android can take a while to figure out your battery. It might drop 5 percent in ten minutes then take an hour to drop 5 more.
2. The vent area on my Shield seems warmer than the surrounding plastic even when in sleep for a while, so it may be drawing more power than is charging. Just try turning it off and charging it.
Click to expand...
Click to collapse
Which vent area? Front or back? Because batteries do warm up when you charge them, and those are some big batteries (and a full 2 amp charge)
agrabren said:
Which vent area? Front or back?
Click to expand...
Click to collapse
The smooth part on the bottom back with the model number, FCC, etc. And it's not when I'm charging but when the lid is closed. If I manually power it down then the warm goes away.
i never recommend running your device down when it comes straight out the box. usually i tell people to just fully charge the device first before running it dry therefore it can register the full battery, personally i would not leave a device connected over night just for the simple fact that it can be one in a million that the device might get screwed over a long period of time.
it be nice to know if the problem is fixed or not and what you did just in case others run into this same problem.
ive had no charging issues yet. batts do tend to get nice and warm tho.
but for what its worth i just noticed that im still getting notification sounds from my Shield even tho the lid is closed. so maybe its some kind of hybrid sleep and if you have some rogue app pulling a ton of CPU cycles & its not going into full sleep so its taking longer to charge?
just some food for thought on your issue
s0me guy said:
ive had no charging issues yet. batts do tend to get nice and warm tho.
but for what its worth i just noticed that im still getting notification sounds from my Shield even tho the lid is closed. so maybe its some kind of hybrid sleep and if you have some rogue app pulling a ton of CPU cycles & its not going into full sleep so its taking longer to charge?
just some food for thought on your issue
Click to expand...
Click to collapse
Like most Android devices, the device goes to "sleep". Unless you power it off, it still handles notifications, and it still talks on WiFi. But it should consume very little power.
elitecmdr666 said:
i never recommend running your device down when it comes straight out the box. usually i tell people to just fully charge the device first before running it dry therefore it can register the full battery, personally i would not leave a device connected over night just for the simple fact that it can be one in a million that the device might get screwed over a long period of time.
it be nice to know if the problem is fixed or not and what you did just in case others run into this same problem.
Click to expand...
Click to collapse
Modern devices use LiPi or Li-ion batteries, these explode when overcharged (seriously, youtube search overcharge lipo). As a result all devices sold with this kind of battery have charge monitoring tools and will disconnect the battery from the charging circuit when full, also they should then run purely from the mains power when the battery is full rather than running on the battery again (they don't like the repeat connect/disconnect effect that would lead to). End result, can't overcharge it.
The heat on mains power tends to be from the voltage regulator. These devices don't run on 5V power like comes from the charger. They tend to use a combo of switch mode and linear regulators to drop the 5V to 3.3V for the CPU and peripherals (3.3 is most common at any rate). Linear regulators in particular get quite warm. Switch mode regulators don't get so warm but don't give a clean output the CPU will run nicely on, they have the odd drop or spike which would either reset or fry the CPU, so generally what happens is the switch mode reg drops a large chunk of the voltage and then feeds it into a linear reg to drop the rest of the way (*the less voltage a linear reg has to drop the less heat it produces). From 5V to 3.3V it is most likely going to be purely a linear regulator, with the CPU and screen drawing at least 1A of current and a 1.7V drop that would equate to 1.7W of heat produced, not much, but enough that if you were to put your finger on the bare regulator chip it would come away red, hold it there long enough and it would be somewhat like those competitions kids have over who can keep their hand on the hot radiator longest That is the main reason they will get hot.
The batteries in these devices are usually 3.7V, that would need a separate regulator from above, and another regulator would still be needed to go from 3.7 > 3.3. 3.7>3.3 would not get so warm. 5>3.7 would still be warm as above.
Never fully drain a LiPo. Gets too low and you damage the cell ir-repairably. When the device claims it is at 0% charge and shuts off is usually closer to 10-20% charge. But that is still considered too low by some people. General advice if you want to prolong the lifetime of your battery is to turn the device off and charge it when it reports somewhere around 5-10% charge.
Batteries do get warm while charging. But my bet is that the voltage regulators would be far more significant heat producers.
agrabren said:
Like most Android devices, the device goes to "sleep". Unless you power it off, it still handles notifications, and it still talks on WiFi. But it should consume very little power.
Click to expand...
Click to collapse
good to know. :good: i didnt think closing the lid was the same as pushing the power button on my phone to turn the screen off.
but the OP's problems still might be "sleep" related.
prime example my SGS3 batt life started to tank after the 1st VZW JB update. it took twice as long to charge & would never "sleep" (cuz of the OS not a app) but since the Tegra 4 is a much higher profile chip it could suck a bit more juice if its not being aloud to fully sleep, for whatever reason.
like you said tho, looking at the battery stats could easily tell us if this is the issue.
SixSixSevenSeven said:
Modern devices use LiPi or Li-ion batteries, these explode when overcharged (seriously, youtube search overcharge lipo). As a result all devices sold with this kind of battery have charge monitoring tools and will disconnect the battery from the charging circuit when full, also they should then run purely from the mains power when the battery is full rather than running on the battery again (they don't like the repeat connect/disconnect effect that would lead to). End result, can't overcharge it.
The heat on mains power tends to be from the voltage regulator. These devices don't run on 5V power like comes from the charger. They tend to use a combo of switch mode and linear regulators to drop the 5V to 3.3V for the CPU and peripherals (3.3 is most common at any rate). Linear regulators in particular get quite warm. Switch mode regulators don't get so warm but don't give a clean output the CPU will run nicely on, they have the odd drop or spike which would either reset or fry the CPU, so generally what happens is the switch mode reg drops a large chunk of the voltage and then feeds it into a linear reg to drop the rest of the way (*the less voltage a linear reg has to drop the less heat it produces). From 5V to 3.3V it is most likely going to be purely a linear regulator, with the CPU and screen drawing at least 1A of current and a 1.7V drop that would equate to 1.7W of heat produced, not much, but enough that if you were to put your finger on the bare regulator chip it would come away red, hold it there long enough and it would be somewhat like those competitions kids have over who can keep their hand on the hot radiator longest That is the main reason they will get hot.
The batteries in these devices are usually 3.7V, that would need a separate regulator from above, and another regulator would still be needed to go from 3.7 > 3.3. 3.7>3.3 would not get so warm. 5>3.7 would still be warm as above.
Never fully drain a LiPo. Gets too low and you damage the cell ir-repairably. When the device claims it is at 0% charge and shuts off is usually closer to 10-20% charge. But that is still considered too low by some people. General advice if you want to prolong the lifetime of your battery is to turn the device off and charge it when it reports somewhere around 5-10% charge.
Batteries do get warm while charging. But my bet is that the voltage regulators would be far more significant heat producers.
Click to expand...
Click to collapse
yes while all this your saying is true i still wont risk it. i say this from experience had a note 10.1 and would leave it over night charging and sure enough it ended up screwing up. might of been there was something wrong with the device itself but still. good post on your behalf though :laugh:
but still im paranoid and prefer to just disconnect once its charge it wont hurt
elitecmdr666 said:
yes while all this your saying is true i still wont risk it. i say this from experience had a note 10.1 and would leave it over night charging and sure enough it ended up screwing up. might of been there was something wrong with the device itself but still. good post on your behalf though :laugh:
but still im paranoid and prefer to just disconnect once its charge it wont hurt
Click to expand...
Click to collapse
I tend to go into way too much detail sometimes :/
Disconnecting can't harm it at least if that's what you prefer.
As for info source. Quite into electronics and robotics, intact the shield would make a good controller for robotics purposes
well i did my second charge last night. and this time much faster, about 5 hours to 100 percent. guess i dont have a problem after all. dont know what happen the first time.
SixSixSevenSeven said:
I tend to go into way too much detail sometimes :/
Disconnecting can't harm it at least if that's what you prefer.
As for info source. Quite into electronics and robotics, intact the shield would make a good controller for robotics purposes
Click to expand...
Click to collapse
no worries lol i tend to get spaced out at times and go into details does not hurt to enlighten people :good:
Is it safe that my device will heat up to 43 degrees while charging and using it (just watching videos)?
OnePlus claimed on their Website, their "technology" will make sure the device will stay cool while charging "even when it's bee used". But it feels really hot nevertheless. Should I be worried?
Also, I noticed that the charging time almost doubles when I use the phone. Not like OnePlus said, it's gonna be the same time.
Do you know if that is the cpu or battery temp?
43degrees for CPU seems pretty normal especially while watching videos. mine is currently idling in the 30s and when gaming will be in 40s. Depending on how long you watch, i can see the temp getting into the 40s also.
If the battery temp it that high, might be an issue. My battery idles in the 20s, not sure what it gets to when gaming.
I use USB tethering every single day, and to get the maximum speed, I have my P40 Pro connected to the USB-C plug on my PC. However, this makes the P40 Pro FAST CHARGE as if its life depends on it.
This is horrible for the battery life, is there any way to disable fast charging?
Use a cable wich doesn't suport fast charging.
Shymmy said:
Use a cable wich doesn't suport fast charging.
Click to expand...
Click to collapse
won't that also lower the data speed?
lolan11628 said:
won't that also lower the data speed?
Click to expand...
Click to collapse
It shouldn't. Test it.
If you don't take the battery below 40% or above 80% when charging, fast charging should not impact battery longevity much.
The former stresses the battery a lot.
Li's love frequent midrange charging... it can extent battery life by hundreds even thousands of charge cycles.
High cell voltage and excessive temperature are Li's biggest enemies.
Try to avoid cold charging >82°F start temperature, avoid charging an Li below 72F and never charge one that's near or below freezing temperatures! Li plating can occur when charging at low temperatures, it will permanently degrade the battery if it occurs.
Charging is a electrochemical reaction that requires heat to function properly.
Never charge if above 100F though as this is near the top end cutoff for charging. Cool the phone with air and/or a damp microfiber cloth in hot ambient temperatures (>95F) when charging or using.
blackhawk said:
It shouldn't. Test it.
If you don't take the battery below 40% or above 80% when charging, fast charging should not impact battery longevity much.
The former stresses the battery a lot.
Li's love frequent midrange charging... it can extent battery life by hundreds even thousands of charge cycles.
High cell voltage and excessive temperature are Li's biggest enemies.
Try to avoid cold charging >82°F start temperature, avoid charging an Li below 72F and never charge one that's near or below freezing temperatures! Li plating can occur when charging at low temperatures, it will permanently degrade the battery if it occurs.
Charging is a electrochemical reaction that requires heat to function properly.
Never charge if above 100F though as this is near the top end cutoff for charging. Cool the phone with air and/or a damp microfiber cloth in hot ambient temperatures (>95F) when charging or using.
Click to expand...
Click to collapse
Well, the issue is that I use my phone for USB tethering every single day, and Huawei doesn't include any setting to limit the capacity to stop charging at for example 80%
My Samsung tablet for example has this setting natively.... Huawei for some reason refuses to add this.
lolan11628 said:
Well, the issue is that I use my phone for USB tethering every single day, and Huawei doesn't include any setting to limit the capacity to stop charging at for example 80%
My Samsung tablet for example has this setting natively.... Huawei for some reason refuses to add this.
Click to expand...
Click to collapse
My Note 10+ doesn't either
Always doing it the hard way like a bad gf
That's one way to boost OEM battery sales...
Hey, but P40 pro has the smart charging mode ... don't you have it activated ??
Shymmy said:
Hey, but P40 pro has the smart charging mode ... don't you have it activated ??
Click to expand...
Click to collapse
I have, but that doesn't actually disable fast charging, nor does it actually stop charging before the battery is completely full. It only in theory does some things when 'it' guesses is appropriate, so it's useless. I haven't really noticed anything.
I looked at the phone exactly when it displayed the message that the phone stopped charging at 80% and that it will be resumed at a certain time (I don't know exactly, about 3 hours).