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.
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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.
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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)
Related
Hey everyone
Just want to ask if anybody noticed the same as me regarding the charger of LG:
if I plug the charger and use the phone it heats up really fast and charging speed is slow. The heat slows down my 4X HD and the performance is sh*tty as hell.
I once forgot my charger an used one from my dad's Samsung and I noticed a incredible difference. No heating at all and it charges much faster (with LG over night ~ 8 hours sometimes not even fully loaded from 15%, with Samsung 4-5 hours full with YouTube use and other minor things).
When I use my phone while plugged with LG charger it often even drains some battery (2-3% in 20 mins discharge, then charge up to 5% in the same time and so on).
Have anybody got the same "problems" or has my charger maybe a hardware failure?
Greetings
Marius
Sent from my LG-P880
Weird. My phone charges from 0%-80% in like 1 hour, then the last 20% tend to take while longer. But also if I "Overcharge" it (that is to say charge it for about 2 hours when it's still 100%) it feels like it has charged 110%. Cause it takes forever to go down to 99% but then it decreases faster.
This is with the included LG charger. If I use my samsung (which is like 500mah) it takes longer.
I don't experince any performance decrease when charging.
baxtex said:
Weird. My phone charges from 0%-80% in like 1 hour, then the last 20% tend to take while longer. But also if I "Overcharge" it (that is to say charge it for about 2 hours when it's still 100%) it feels like it has charged 110%. Cause it takes forever to go down to 99% but then it decreases faster.
This is with the included LG charger. If I use my samsung (which is like 500mah) it takes longer.
I don't experince any performance decrease when charging.
Click to expand...
Click to collapse
Are you on stock rom or on a custom rom? I'm on WerewolfJB and that's maybe why it heats up but the faster charging with the Samsung charger is really noticeable, especially when I use the phone, like I said.
Thanks for sharing your experience with it
Sent from my LG-P880
Omario-242 said:
Are you on stock rom or on a custom rom? I'm on WerewolfJB and that's maybe why it heats up but the faster charging with the Samsung charger is really noticeable, especially when I use the phone, like I said.
Thanks for sharing your experience with it
Sent from my LG-P880
Click to expand...
Click to collapse
I'm on a AOSP rom (Slimbean). But I do share your experience with heat, both on the phone and the charger itself. But I think it's due to the high currency.
Your charger could just be broken. LG charger's output current is rated at 1.2A which means that the battery should be charged from 0% to 100% in about 1 h 45 min. It could take longer if the charging current gets smaller when the battery is starting to get full.
Thundermand said:
Your charger could just be broken. LG charger's output current is rated at 1.2A which means that the battery should be charged from 0% to 100% in about 1 h 45 min. It could take longer if the charging current gets smaller when the battery is starting to get full.
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Click to collapse
wrong, "charger" is not current source
for topic: your charger is bad, replace it
I had an issue that CPU was always 760mhz while charging with zen+HYPER governors. RevoltJB+OP kernel 2.53.
Noticed that my raspberry charger(2A) was faster than LG stock charger. Also normal for me too that battery even decreases while using phone at charger.
Hallako said:
I had an issue that CPU was always 760mhz while charging with zen+HYPER governors. RevoltJB+OP kernel 2.53.
Noticed that my raspberry charger(2A) was faster than LG stock charger. Also normal for me too that battery even decreases while using phone at charger.
Click to expand...
Click to collapse
there is maximum allowed current to charge phone. it is controlled by electronics inside the phone. if you are using charger that has bigger maximum current it is possible that phone battery is faster charged, but as i said, it depends on interior charging circle
Charging Current 101
To clarify the above responses:
The LG charger *should* be more than adequate to charge the handset, as that is what it was designed to do....
If you were to use a different charger, e.g. one from another phone or a shop bought replacement, then the maximum output current of the charger is an important factor: the lower the rating (in mA or A) the slower the charge and therefore the longer it will take. Using the phone whilst charging will also increase the charge time as you are using the battery whilst charging it (like filling the bath with the plug out), more so with apps that load the graphics processor (GPU) such as youtube or games as these are battery intense tasks.
The rate at which the battery charges is ultimately decided by the handset; most modern phones will fast-charge most of the way, then slow charge the last few % to avoid overheating and damaging the battery, so having a charger rated to, say, 2.4A (or 2400mA) does not mean the battery will charge twice as fast as one rated at 1.2A as the phone dictates how much current it needs.
That will either clear up a lot of questions or will mean nothing at all
baxtex said:
Weird. My phone charges from 0%-80% in like 1 hour, then the last 20% tend to take while longer. But also if I "Overcharge" it (that is to say charge it for about 2 hours when it's still 100%) it feels like it has charged 110%. Cause it takes forever to go down to 99% but then it decreases faster.
This is with the included LG charger. If I use my samsung (which is like 500mah) it takes longer.
I don't experince any performance decrease when charging.
Click to expand...
Click to collapse
Same. Charging here is very fast overall.
Glad Tidings!
It is my understanding that, with standard 5 volt chargers, in general a high voltage charger is preferable because the device takes only what it needs. I am curious what the thoughts are concerning the Qualcomm 2. 0 technology, and if the consensus is that the same holds true for those devices.
The reason for my question, is that I purchased a Qualcomm 2.0 charger that puts out 25 percent more power across the board than the stock droid turbo charger. Should I be worried, or just let her rip on my new Droid turbo?
The stock charger has the 2.0 technology as well. Which did you purchase that puts out 25% more?
From Motorola's website:
Our fastest charger ever — incorporates Qualcomm® Quick Charge™ 2.0*
Link:
http://www.motorola.com/us/accesso...Turbo-Charger/motorola-turbo-charger-pdp.html
No worries, the phone is measuring battery temperature and other variables continuously while on charge and it will adjust the charge accordingly, when done it will stop charging altogether. This is also why if the battery is completely dead it wont quick charge until it picks up a little battery, quick charge has to be enabled by the phone and the phone cant enable it when it is dead. Just an fyi...
Thanks krabman!
Great explanation, leaves me even more impressed with this phone! I have been just a bit concerned about heat, as the temperature gets up to 111 or so. Good to know I needn't be too worried.
C, the charger I bought is a Tenergy. It puts out 18 watts at the two Qualcomm 2.0 configurations, and even cranks out 10 watts at the standard 5 volts. It's actually a pretty cool charger, the indicator light glows blue for standard charge, but changes to green when it is charging a Q 2 device.
Merry Christmas, Happy Holidays everyone!
I have gotten the phone yesterday to 135F and I could be baking cookies on it ahahaha. Reason why it was so hot was because I was downloading movies on my phone and charging with turbo charger. But at 135F I got a warning saying temperature above normal. Once I disconnected the phone it went to 132 F and got new notification saying temp back to normal. So my guess is that the battery can take some serious heat.
My phone gets hotter than usual when I'm using a Qi wireless charger.
woke up today and my phone was at 48°C. It's hot as hell here, tho. 31°C right now...
alexcreto said:
My phone gets hotter than usual when I'm using a Qi wireless charger.
woke up today and my phone was at 48°C. It's hot as hell here, tho. 31°C right now...
Click to expand...
Click to collapse
Check the post above yours
So basically to get the fastest charge, I should throw my phone in the freezer while charging?
wadamean said:
Check the post above yours
Click to expand...
Click to collapse
Yeah, man! I wasnt expecting that high temps. My phone was charging, but during the night I turn everything off, so it doesn't wake me up.
I really don't wanna try doing high usage tasks while charging...
I've had a couple phones with a version of the quick charge feature and they all got hot while charging, the Find 7 can get uncomfortable to hold if you are charging while surfing as an example. With any of them taking charge at idle they got warm but I wouldn't say hot. I am curious about having a high temp on a wireless charger though, I wouldn't have expected it. The N5 was my last phone capable of wireless charge and I don't recall it getting anything more than slightly warm. I'm not sure if it makes any difference but I had the Qi charger google sold, it was fairly slow charging.
same here
Hello
Bit of random one but can I charge my nexus 6 with a normal charger say my old Samsung s4 charger?
Don't want to damage my battery or phone but can't see why it would but would rather check.
I'm guessing it will just take longer to charge?
Cheers lee
leekeene said:
Hello
Bit of random one but can I charge my nexus 6 with a normal charger say my old Samsung s4 charger?
Don't want to damage my battery or phone but can't see why it would but would rather check.
I'm guessing it will just take longer to charge?
Cheers lee
Click to expand...
Click to collapse
sure, you can use any compatible charger. but to warn you, most normal phone chargers will just take MUCH longer to charge the n6.
Yea no worries on the time. Thinking slower charge over night might be better than leaving it plugged in fully charged for longer. Plus I'm a believer about running battery flat for the first few charges and only have a normal charger at work which is when it will run out next lol
leekeene said:
Yea no worries on the time. Thinking slower charge over night might be better than leaving it plugged in fully charged for longer. Plus I'm a believer about running battery flat for the first few charges and only have a normal charger at work which is when it will run out next lol
Click to expand...
Click to collapse
1) You *cannot* run the battery flat. The battery chip WILL shut you down when the voltage drops below a certain threshold.
2) Li-ion batteries DO NOT do well with being deep cycled. The lower you let it drop, the shorter the battery life. This is one of the reasons why they shut you down before it goes flat.
3) The battery has to have a minimum voltage in order to power the circuit that controls charging. Yes, if the battery level drops too low, YOU CAN'T EVEN RECHARGE IT.
It is better for the battery to charge slowly, and to top up frequently.
Hi everyone, I'm new here with my Note 9 coming from a Galaxy S5. I have 2 questions.
I want to know firstly what (wired) charging do the majority of Galaxy Note 9 owners employ? Standard or fast charging? I am very weary of fast charging because of increased battery degradation.
My second question is this. I am assuming that fast charging increases battery degradation because of increased heat from the higher voltages. And yes I know that it is adaptive and gradually tapers off. I have run an experiment. I have installed a couple of battery temperature apps and charged through standard charging. Then I have put the phone on a solid piece of steel plate and charged through fast charging. The temperatures of the battery are identical. I have checked this a number of times. The steel plate even at room temperature is quite cold.
So does this mean that if I fast charge with the phone on a cold steel plate and the temperature is no higher than standard charging resting on a usual surface, that fast charging in this case causes no additional battery degradation?
Thanks.
Fast charging, most of the time
Fast wireless charging all the time. Even when it's in my car dock it wirelessly charges in that can be for 3-4 hours a day on and off depending on journey. Screw battery degradation I'll use the upgrade programme to upgrade next year.
Slow charging. I have the same concern as you hence I off the fast charging function. No diff to me since I charge my phone only at night when I am about to sleep. Do not require charging to be fast.
BlackCatSam said:
Hi everyone, I'm new here with my Note 9 coming from a Galaxy S5. I have 2 questions.
I want to know firstly what (wired) charging do the majority of Galaxy Note 9 owners employ? Standard or fast charging? I am very weary of fast charging because of increased battery degradation.
My second question is this. I am assuming that fast charging increases battery degradation because of increased heat from the higher voltages. And yes I know that it is adaptive and gradually tapers off. I have run an experiment. I have installed a couple of battery temperature apps and charged through standard charging. Then I have put the phone on a solid piece of steel plate and charged through fast charging. The temperatures of the battery are identical. I have checked this a number of times. The steel plate even at room temperature is quite cold.
So does this mean that if I fast charge with the phone on a cold steel plate and the temperature is no higher than standard charging resting on a usual surface, that fast charging in this case causes no additional battery degradation?
Thanks.
Click to expand...
Click to collapse
If you plan on keeping your Note 9 as long as you did your S5 then slow charge with wire and also try your best to charge from 40 -80%.
Sent from my SM-N960U1 using Tapatalk
Samsung is claiming 95% battery charge capacity after 2 years (80% is normal). So there is little reason to hold charging to 40 -80% for the normal lifetime of a phone. And also LION batteries are never allowed to charge or discharge completely - it's hazardous. So Samsung is already limiting how much power the phone can draw or charge the battery. (So do electric car manufacturers)
^^^Interesting...
hankvb said:
Samsung is claiming 95% battery charge capacity after 2 years (80% is normal). So there is little reason to hold charging to 40 -80% for the normal lifetime of a phone. And also LION batteries are never allowed to charge or discharge completely - it's hazardous. So Samsung is already limiting how much power the phone can draw or charge the battery. (So do electric car manufacturers)
Click to expand...
Click to collapse
A quote is worthless without a source, where did you hear Samsung state the phone would have 95% battery charge capacity after 2 years? Also I'm not sure you understand Li-ion batteries, they are allowed to be fully charged but not completely discharged, this is included in the mAh ratings. Also electric car manufacturers do infact recommend something similar to 40 - 80% charging, for example, Tesla by default do not charge 100%. Even Elon Musk recommends 30 - 80% charging: https://twitter.com/elonmusk/status/448466037441179649
I use slow charging. I believe it is quite fast even with slow charging.
If there is an option to choose whether you want fast and slow charging, note that fast one has some downsides.
A quote is worthless without a source, where did you hear Samsung state the phone would have 95% battery charge capacity after 2 years? Also I'm not sure you understand Li-ion batteries, they are allowed to be fully charged but not completely discharged, this is included in the mAh ratings. Also electric car manufacturers do infact recommend something similar to 40 - 80% charging, for example, Tesla by default do not charge 100%. Even Elon Musk recommends 30 - 80% charging:
Wow took 5 seconds to find many reports of the Samsung statement.
https://www.notebookcheck.net/Samsu...ain-95-capacity-after-two-years.244370.0.html
hankvb said:
A quote is worthless without a source, where did you hear Samsung state the phone would have 95% battery charge capacity after 2 years? Also I'm not sure you understand Li-ion batteries, they are allowed to be fully charged but not completely discharged, this is included in the mAh ratings. Also electric car manufacturers do infact recommend something similar to 40 - 80% charging, for example, Tesla by default do not charge 100%. Even Elon Musk recommends 30 - 80% charging:
Wow took 5 seconds to find many reports of the Samsung statement.
https://www.notebookcheck.net/Samsu...ain-95-capacity-after-two-years.244370.0.html
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Click to collapse
Although I don't blindly trust what manufacturers claim, I did however test my wife's note 8 and used accubattery pro on her device from new. Unlike me, she would always topup her phone and also fast wireless charge. After a year prior to her trading her note 8 in for a note 9 I checked the health tab, I know it's not accurate however as a ballpark is stated her battery health was at 97% which isn't pretty bad for 12 months of usage. My note 8 was at 99% using the 40-80 rule approx 90 % of the time. If one was going to keep their device longer than two years I'd still recommend using the 40-80 method to prolong battery life. However most Inc myself upgrade yearly so it's all moot. I just do it (80-40) out of habit.
Sent from my SM-N960U1 using Tapatalk
hankvb said:
A quote is worthless without a source, where did you hear Samsung state the phone would have 95% battery charge capacity after 2 years? Also I'm not sure you understand Li-ion batteries, they are allowed to be fully charged but not completely discharged, this is included in the mAh ratings. Also electric car manufacturers do infact recommend something similar to 40 - 80% charging, for example, Tesla by default do not charge 100%. Even Elon Musk recommends 30 - 80% charging:
Wow took 5 seconds to find many reports of the Samsung statement.
https://www.notebookcheck.net/Samsu...ain-95-capacity-after-two-years.244370.0.html
Click to expand...
Click to collapse
And while I'm thinking of it. Why don't you substantiate your quote??
hi guys, my problem is when i charge my phone on fast charging using original charging adapter it shows (fast charging for only 10-15m) after that it turns to cable charging and I'm still on Oreo no root, is that a hardware issue?
tried:
- cleaning the charging port
- factory reset
- flashing a new firmware
- tried another adapter and cable.
any suggestions? thank you
Maybe temps are to hot so it switches down to a less heating method for battery protection ...in the summer the fast recharging often doesn't work because temps are to high. To be sure, you can even try another cable (because adapters give rarely these problems but cables often get broken inside for bending them or the USBs plugs get worn for using it) when having the problem and if the result is the same, the reason is the one I explained. This thing happens even to other models so I don't think there's a software problem (as I know, never happened for this) so wipes are not necessary.
joedellosso69 said:
Maybe temps are to hot so it switches down to a less heating method for battery protection ...in the summer the fast recharging often doesn't work because temps are to high. To be sure, you can even try another cable (because adapters give rarely these problems but cables often get broken inside for bending them or the USBs plugs get worn for using it) when having the problem and if the result is the same, the reason is the one I explained. I don't think there's a software problem (as I know, never happened for this) so wipes are not necessary.
Click to expand...
Click to collapse
so there is a heating method for battery protection? i didn't know that, well it's too hot this summer in my country and my phone going too hot when I'm charging, i didn't have this problem in the winter time so that's the cause. thank you bro for your help.
alsartawi said:
so there is a heating method for battery protection? i didn't know that, well it's too hot this summer in my country and my phone going too hot when I'm charging, i didn't have this problem in the winter time so that's the cause. thank you bro for your help.
Click to expand...
Click to collapse
More the charge gets fast, more the battery gets hot especially if using the phone for something else while charging. In the summer, when the hoter outside temps gets the battery even more hot then it normally should be , to protect the battery (because it might even explode if to hot) in these cases software slows down charging. This happens for all models and even if it's true that cables often get broken slowing down chargings, a lot of people change unnecessarily there cables in these periods because don't know about the temp protection...
This is not a rule for the summer, but for everytime the battery gets hoter then an established temp so, it might happen even in winter if necessary .
joedellosso69 said:
More the charge gets fast, more the battery gets hot especially if using the phone for something else while charging. In the summer, when the hoter outside temps gets the battery even more hot then it normally should be , to protect the battery (because it might even explode if to hot) in these cases software slows down charging. This happens for all models and even if it's true that cables often get broken slowing down chargings, a lot of people change unnecessarily there cables in these periods because don't know about the temp protection...
This is not a rule for the summer, but for everytime the battery gets hoter then an established temp so, it might happen even in winter if necessary .
Click to expand...
Click to collapse
i will turn fast charging off at this time for safety, even there is no much difference in charging time, anyway the note 9 fast charging is no good at all.. thank you for you advise bro.
alsartawi said:
i will turn fast charging off at this time for safety, even there is no much difference in charging time, anyway the note 9 fast charging is no good at all.. thank you for you advise bro.
Click to expand...
Click to collapse
Good thing doing this even for another reason : since having my phone, I used fast charge only a couple of times because I needed the extra speed for not having anough time to do the normal one. This because fast charge stresses the battery a lot so it's durability drammactly goes down if using it for every day charging and you will replace it sooner compared to using it after using only the normal charging for everyday usage . Sorry, but I don't agree... Don't think it's not good or worst than others because note 9's fast charge is coming out from the other previous models (S9, S8 ecc) and like for them, used when necessary is the best thing to do for having a long life battery and I'm also convinced that it's meant to be used when necessary.
If this problem occurred after update?