Question S21 Ultra Exynos Heating Problem - Samsung Galaxy S21 Ultra

Hlo guys, Hope you all are doing well.
I bought an S21 Ultra (Exynos) yesterday and it seems to be running hot even during normal usage. It heats up while I charge it (with a 33W Xiaomi charger) and it heats up even more (goes upto 43°C) while I am on a video call. I'm a little bit worried. Is this a faulty unit or just a software issue? Please help me out guys.

maharoof said:
Hlo guys, Hope you all are doing well.
I bought an S21 Ultra (Exynos) yesterday and it seems to be running hot even during normal usage. It heats up while I charge it (with a 33W Xiaomi charger) and it heats up even more (goes upto 43°C) while I am on a video call. I'm a little bit worried. Is this a faulty unit or just a software issue? Please help me out guys.
Click to expand...
Click to collapse
It will do that for a few days. I had the same experience on the first 2-3 days. But the heating issue went away after that. It will still heat up occasionally (just like any other computer) and especially when you do anything involving the camera. All the new apps are constantly writing info, building cache, etc - this should ease off once the initial intense activity has completed. Some heating is bound to happen when charging too.
The only things I would recommend changing for now are: If you don't use 5G or have poor coverage in your area, turn off 5G scanning from Connections setting. This seemed to help me with battery as well as heating. And FHD+ instead of WQHD+ resolution (at least till the heating issue is gone, and then you can play around with settings and see what you like)
My advice would be to just wait for a few days before doing anything drastic or trying to modify stock firmware. If not better by the end of the week, you can explore other options. The phone is just one day old. Just give the software some time to settle.

unfortunately thats just the way it is
am having the EXACT same issues and i had the phone since Feb so - not something that will go away unless Samsung fixes it

enigmaamit said:
It will do that for a few days. I had the same experience on the first 2-3 days. But the heating issue went away after that. It will still heat up occasionally (just like any other compluter) especially when you do anything involving the camera. All the new apps are comstantly writing info, building cache, etc - this should ease off once the initial intense activity has completed. Some heating is bound to happen when charging too.
The only things I would recommend changing for now are: If you don't use 5G or have poor coverage in your area, turn off 5G scanning from Connections setting. This seemed to help me with battery as well as heating. And FHD+ instead of WQHD+ resolution (at least till the heating issue is gone, and then you can play around with settings and see what you like)
My advice would be to just wait for a few days before doing anything drastic or trying to modify stock firmware. If not better by the end of the week, you can explore other options. The phone is just one day old. Just give the software some time to settle.
Click to expand...
Click to collapse
That's comforting to hear. Let me monitor it for another week. Should I continue using the 33W charger? Is S21 ultra capable of handling it? Or should I just buy the Samsung 25W charger? Thanks for the reply dude.

tim2london said:
unfortunately thats just the way it is
am having the EXACT same issues and i had the phone since Feb so - not something that will go away unless Samsung fixes it
Click to expand...
Click to collapse
I hope it gets better for you. For all of us.

maharoof said:
That's comforting to hear. Let me monitor it for another week. Should I continue using the 33W charger? Is S21 ultra capable of handling it? Or should I just buy the Samsung 25W charger? Thanks for the reply dude.
Click to expand...
Click to collapse
I haven't used the Mi charger. Tried with an old warp charger from OnePlus just for kicks and it doesnt super-fast charge the S21U. But that's becasue the propreitary fast charging standards used by different manufacturers are often incompatible.
After some research, I've found that the S21 ultra will not draw any more than 25 Watts of power (even if you use the Samsung original 45W charger). And even that 25W will work with only with a PPS (Programmable Power Supply) charger (USB C to C PPS) - like the 25W Official Samsung charger. There are a few 3rd party maufacturers that make PPS chargers, but I haven't used any of them. I just went ahead and bought the Samsung one, as there was a good discount on it.
Any other charger you use will only work as a slow charger, or a fast charger (15W max) at best if it supports Qualcomm Quick Charge (QC3) standard. For 25W Super-fast charging (it's anything but super-fast, but that's what Samsung insists on calling it) you need a PPS charger, and I would recommend going with the original 25W Samsung charger.

enigmaamit said:
I haven't used the Mi charger. Tried with an old warp charger from OnePlus just for kicks and it doesnt super-fast charge the S21U. But that's becasue the propreitary fast charging standards used by different manufacturers are often incompatible.
After some research, I've found that the S21 ultra will not draw any more than 25 Watts of power (even if you use the Samsung original 45W charger). And even that 25W will work with only with a PPS (Programmable Power Supply) charger (USB C to C PPS) - like the 25W Official Samsung charger. There are a few 3rd party maufacturers that make PPS chargers, but I haven't used any of them. I just went ahead and bought the Samsung one, as there was a good discount on it.
Any other charger you use will only work as a slow charger, or a fast charger (15W max) at best if it supports Qualcomm Quick Charge (QC3) standard. For 25W Super-fast charging (it's anything but super-fast, but that's what Samsung insists on calling it) you need a PPS charger, and I would recommend going with the original 25W Samsung charger.
Click to expand...
Click to collapse
I'll go with the Samsung 25W charger then. Thanks by the way

maharoof said:
I'll go with the Samsung 25W charger then. Thanks by the way
Click to expand...
Click to collapse
You're most welcome.

You can be unfortunate with any SOC in terms of die quality. Some people are simply SOL and end up with crap silicon which results in bad thermals and, if you're rooted, a restricted ability in overclocking or undervolting.
What people can't do is have a crap experience with the thermals on their S21 Ultra (or any other device) and talk as if it applies to every other device of the same model, as in post #3. It doesn't work that way.

one thing i did yesterday (btw may update did not fix the heating issue) was to disable the 5g - keeping in mind i live in an area where there is excellent 5g coverage)
as soon as i turned 5g off - the heating was gone, the battery life increased and the phone felt smoother
now this was also an issue last year on s20 - seems this year is the same
something about the 5g that makes the phone get really hot
try it and see if that works

tim2london said:
one thing i did yesterday (btw may update did not fix the heating issue) was to disable the 5g - keeping in mind i live in an area where there is excellent 5g coverage)
as soon as i turned 5g off - the heating was gone, the battery life increased and the phone felt smoother
now this was also an issue last year on s20 - seems this year is the same
something about the 5g that makes the phone get really hot
try it and see if that works
Click to expand...
Click to collapse
Heating problem while charging is fixed after I started using the original Samsung charger. But I'm still experiencing problems with video calls A 20 minute video call (through Microsoft Kaizala) increases the temperature to 45°C I'm not sure what's the problem. I have turned off 5G as well.

enigmaamit said:
I haven't used the Mi charger. Tried with an old warp charger from OnePlus just for kicks and it doesnt super-fast charge the S21U. But that's becasue the propreitary fast charging standards used by different manufacturers are often incompatible.
After some research, I've found that the S21 ultra will not draw any more than 25 Watts of power (even if you use the Samsung original 45W charger). And even that 25W will work with only with a PPS (Programmable Power Supply) charger (USB C to C PPS) - like the 25W Official Samsung charger. There are a few 3rd party maufacturers that make PPS chargers, but I haven't used any of them. I just went ahead and bought the Samsung one, as there was a good discount on it.
Any other charger you use will only work as a slow charger, or a fast charger (15W max) at best if it supports Qualcomm Quick Charge (QC3) standard. For 25W Super-fast charging (it's anything but super-fast, but that's what Samsung insists on calling it) you need a PPS charger, and I would recommend going with the original 25W Samsung charger.
Click to expand...
Click to collapse
As I'm still experiencing problems with temperature going up in video calls, is there anyway to log the cpu usage and thermals? Maybe that would help in finding out the culprit. The battery life is not that great either. I can't figure out how much SOT I'm getting since the battery page still shows "Learning usage patterns".

i think the heat during video calls is another issue - that is triggered by the actual video processing - i think you will notice if you turn the camera on for shooting a video (not live video calls) you will notice instant heating - i think that is also what is causing this - both frontal and rear cameras have huge sensors and the phone must do a lot of work to compress the live videos + data connection/wifi used during the video
i dont know the culprit but is defo related to the same issue why when taking loads of photo or long vids the phone get super hot
i mean i turn off my video during a call and the heating goes down pretty fast
all in all - it seems the same issues that plagues s20 exynos are still present in the s21 exynos - so not sure what improvements they made cz honestly is as bad as last year!!!

Hey guys, i live in Kuwait and now temps are reaching 45-50°.
I don't expect the device to cool itself and i try as much to avoid using it outdoors or in my car (i have a ****ty AC)
Otherwise while at home and gaming it never exceed 40° ever.
If you dig deep into when you are using and where you will notice.
5g also drain and push temps up waaay to much.
Volte is also a factor.
Btw these are in all phones not only the s21u.
Don't be fooled guys and don't hate the ohone, it's a phone with soo many things and features running simultaneously, it has no fans and no cooling except for the paste lol.
That's my way of looking at it, i might be wrong.
Btw my sister's iPhone 12promax does the same and reach hot temps when used out and camera together.

maharoof said:
As I'm still experiencing problems with temperature going up in video calls, is there anyway to log the cpu usage and thermals? Maybe that would help in finding out the culprit. The battery life is not that great either. I can't figure out how much SOT I'm getting since the battery page still shows "Learning usage patterns".
Click to expand...
Click to collapse
That learning usage patterns will take a few days before it starts showing data.
For thermal logging and control you can use the Samsung Labs module called Thermal Guardian. If labs app is not available in your country, download finelock from play store and get it from there. Search for appx video on thermal Guardian on YouTube for installation details

Guys 40+ something temps are nothing. Just put on a cover, relax, and enjoy the warm beast your phone is.

There is a direct relationship between the amount of power used by a processor and its clock frequency. The higher the performance, the higher the power consumption and heat generated.
Samsung is teaming up with AMD on an improved SoC which is reported to make it's debut on the S22. Hopefully this will eliminate the ongoing defencies with the Exynos SoC.
Redirect Notice
Not only have some of Samsung's major stock holders pressured Samsung to resolve the Exynos debacle, there's even an online petition with over 50,000 signatures requesting Samsung stop using the Exynos Chipsets in it's flagship devices.
Sign the Petition
Stop selling us inferior Exynos phones!
www.change.org
The only other Non-Samsung Smartphone which uses the Exynos Chip is Vivo. All others besides Huawei and a couple of Chinese Brands use Snapdragon which is pretty good indicator for the lack of confidence in Exynos SoC's

This heath issue has to do with my S21 ultra's reboot thing? Once a day...I noticed that,if I install some app outside google playstore(such as vanced etc), my phone will reboot by yourself once a day....

I have no heating issues with my Exynos. Sd 888 has very bad heating issues in all the phones that use it. Stop with the "inferior Exynos" bs already.

bandiere2000 said:
This heath issue has to do with my S21 ultra's reboot thing? Once a day...I noticed that,if I install some app outside google playstore(such as vanced etc), my phone will reboot by yourself once a day....
Click to expand...
Click to collapse
Look in settings to see if your phone is set to reboot once a day. If it's not, then you have a hardware problem.

Related

Faster charging possible?

So this gallium nitride charger from ravpower just came out and claiming to charge our phones at a much faster rate than what we know of, is this true or no matter what charger we get it will always stick to the fastcharge 2.0 that we have?
Here's the link of what I'm talking about
https://www.amazon.com/gp/product/B...WPCFK&linkId=afbc636ce7e83683778b0a7e96f75342
I think it will adopt to whatever charging speed the phone supports and not faster
Yep. The Electronic in the Phone decides how fast it will charge. But it cant go over the specefic boarders of itself.
That means : Even if you use a quic charge 8.0 charger with 99A and 9000V, it will not charge faster than the mainboard inside the phone want to take.
Dont buy any charger that say : It will charge your phone faster ! Thats bull****.
Ok thanks you guys, appreciate it
It's my hope that Samsung decide to increase our charging speeds after the they've done the S10, from what I've read the Galaxy S10 & S10+ are both getting a OTA to increase its charging speed to 25w, I hope it's possible for our Note 9's, however I admit the likeliness of it happening are slim..

Galaxy Watch 3 heating during charge?

Hello,
My Galaxy Watch 3 heats up during charge, either on Samsung dual phone-watch charger or on charger which came with the watch. Is it the common experience?
Thanks!
no.
is this your first smartwatch or first galaxy watch? do you have LTE or BT only?
what was the charge % when you placed it on the charger?
wireless charging is very inefficient. its imperative that you place the watch directly on the coils or else you will experience some warmth. if you have an aggressive watch face that uses a lot of power, this may also contribute.
ive an LTE varian and always purchase the LTE variants of this brand and i have not experienced this. now if the battery is flat in the watc and ts charged to full, it will get warm - that in my opinion is normal.
I have the T-Mobile USA version. Several days back I was charging and also streaming audio via the web browser via LTE. Watch got rather warm and warn me it was overheating then powered off. I let it cool down no damage I guess running all of that code it's a little more than that little watch can handle.
marctronixx said:
no.
is this your first smartwatch or first galaxy watch? do you have LTE or BT only?
what was the charge % when you placed it on the charger?
wireless charging is very inefficient. its imperative that you place the watch directly on the coils or else you will experience some warmth. if you have an aggressive watch face that uses a lot of power, this may also contribute.
ive an LTE varian and always purchase the LTE variants of this brand and i have not experienced this. now if the battery is flat in the watc and ts charged to full, it will get warm - that in my opinion is normal.
Click to expand...
Click to collapse
Thanks,
This is BT version. Stock watch face with only battery level complication. I charge the watch on 20-30% discharge. Always precisely aligning with coil.
The watch does not became really hot - no overheat warning etc.
My only concern is that I've red that overheat kills battery.
I don't know if it also for Galaxy 3 since due to MIL standard it's made to stand up to 50 C temperature - the watch does not became that hot. I think it gets may be up to 40 degrees.

Question Charging habits with SiO2 batteries

Hello there! I wanted to open this thread to ask what's your opinion on proper charging habits with this Si02 battery that our Mi 11 Ultra's are equipped with. I have been reading a bit on the issue, but all I can find is comparisons between ASM batteries (lead based) and Si02 batteries.
Should we be using the same 15/20% to 80% rule with Si02 batteries?
The most I could find is that they are way more resilient to 80% DoD's than other batteries, so perhaps we can move to a 10 to 90% approach with them?
Cheers
I don't like leaving home without 100%
Replacement batteries are cheap but you lose waterproofing when you install one yourself which is a good reason to take care of it if possible
It's so hard NOT to reach 100% with the 65W xiaomi charger that i have
I also observed another thing, when charging with a slower xiaomi charger ( the one that came with the mi9 ) the temperature gets higher until it reaches the 90% mark than the 65W charger.
This was clearly observed via the Accubattery pro app that i use.
I'm curious to see hot it will be with the wireless (80W) charger.
Cheers !
Jhonxs said:
It's so hard NOT to reach 100% with the 65W xiaomi charger that i have
I also observed another thing, when charging with a slower xiaomi charger ( the one that came with the mi9 ) the temperature gets higher until it reaches the 90% mark than the 65W charger.
This was clearly observed via the Accubattery pro app that i use.
I'm curious to see hot it will be with the wireless (80W) charger.
Cheers !
Click to expand...
Click to collapse
Given the fan the 80W charger has, I take it will probably run quite cool..!!
I am personally also using the 67W charger and even tho it gets hot, accubattery shows it as being completely fine.
That charging speed is amazing, and indeed, it rlly is hard not to reach 100%. I was using a 33W charging phone before and it was already hard to some point not going over 80-90% .
I am personally going to try keeping the DoD between 60% to 70% if possible, but I feel like this batteries deal with DoD better than Li-ion batteries
If you want to control your charging/discharging, I found an app on Play called Plug Sound. It lets you change a lot of system sounds, but will also play a warning sound when battery reaches High/Low charge %age.
The plugged in/unplugged sounds work well with my wireless charger so I know I've positioned the phone correctly.
Cheers
Steve
picitup said:
If you want to control your charging/discharging, I found an app on Play called Plug Sound. It lets you change a lot of system sounds, but will also play a warning sound when battery reaches High/Low charge %age.
The plugged in/unplugged sounds work well with my wireless charger so I know I've positioned the phone correctly.
Cheers
Steve
Click to expand...
Click to collapse
Or, if you're rooted, you can install this app from the Play Store, that limits the charge to a set percentage. You can also find it on this thread. I've been using it on my OnePlus 6 and it works great, stopping the charge at 80% and resuming it if it falls under 78%. It's the first thing I'm going to install when I receive and root my Mi 11 Ultra.

S20FE 4G (Exynos) Charging Speed

Hi everyone,
I recently purchased S20FE 4G in India. I also purchased a 25W charger from Samsung.
I'm very disappointed with the charging speeds.
I switched off and charged and these are my results:
25W took 1hr25min to charge 5to100%
15W took 1hr38min to charge 5to100%
I even formatted my device but no improvement.
Can you guys mention your charging speeds?
What can I do as service centers are closed due to lockdown.
Thank you.
enable fast charging
3mel said:
enable fast charging
Click to expand...
Click to collapse
It is enabled.
Ashutosh7x said:
It is enabled.
Click to expand...
Click to collapse
since you formatted ?
3mel said:
enable fast charging
Click to expand...
Click to collapse
It is enabled.
3mel said:
since you formatted ?
Click to expand...
Click to collapse
Yes, I enabled after formatting.
I think it's a software bug as many users are complaining about the same on Samsung Members app.
Ashutosh7x said:
It is enabled.
Yes, I enabled after formatting.
I think it's a software bug as many users are complaining about the same on Samsung Members app.
Click to expand...
Click to collapse
I've heard people mention it on reddit too. weirdly the standard 15w charger hits around 3000mA if fast charging is enabled.
3mel said:
I've heard people mention it on reddit too. weirdly the standard 15w charger hits around 3000mA if fast charging is enabled.
Click to expand...
Click to collapse
Mine 15W gives upto 1500-1600mAh max then drops to around 1000mAh.
25W fluctuates a lot. Gives around 1100-1200 only
Ashutosh7x said:
Mine 15W gives upto 1500-1600mAh max then drops to around 1000mAh.
25W fluctuates a lot. Gives around 1100-1200 only
Click to expand...
Click to collapse
It should hit close to 5000ma at times with 25 w brick in the 20-70% charge range.
In that range you should be seeing 2600-5000ma.
Fast charging will noticeably start ramping down at 70-75% and will completely slow charge after 90%. Best to stop charging at 70-80%.
If the start temperature is too low it will revert to slow charging for the entire cycle.
Best start temp is 85-90°F.
Cool it if it starts getting near 100F.
Use a known good Samsung OEM 25w brick/cable.
Try toggling to fast charging switch on/off 3 times.
Factory resets* will do nothing except waste time.
Clear system cache, try a hard reboot.
Watch for any signs of bulging on the front and especially back of the phone. Li's can fail at any point in their life. A failed Li will fast charge erratically and have reduced capacity. Any swelling means it needs replaced asap before it damages the display or worse.
*a major firmware update is the exception
blackhawk said:
It should hit close to 5000ma at times with 25 w brick in the 20-70% charge range.
In that range you should be seeing 2600-5000ma.
Fast charging will noticeably start ramping down at 70-75% and will completely slow charge after 90%. Best to stop charging at 70-80%.
If the start temperature is too low it will revert to slow charging for the entire cycle.
Best start temp is 85-90°F.
Cool it if it starts getting near 100F.
Use a known good Samsung OEM 25w brick/cable.
Try toggling to fast charging switch on/off 3 times.
Factory resets* will do nothing except waste time.
Clear system cache, try a hard reboot.
Watch for any signs of bulging on the front and especially back of the phone. Li's can fail at any point in their life. A failed Li will fast charge erratically and have reduced capacity. Any swelling means it needs replaced asap before it damages the display or worse.
*a major firmware update is the exception
Click to expand...
Click to collapse
I'm hoping for a software update to fix this bug. My 25W never goes beyond 4000mAh.
It takes 1hr25min to charge from 5to100% when the mobile is off.
Should I downgrade to March patch using odin?
Ashutosh7x said:
I'm hoping for a software update to fix this bug. My 25W never goes beyond 4000mAh.
It takes 1hr25min to charge from 5to100% when the mobile is off.
Should I downgrade to March patch using odin?
Click to expand...
Click to collapse
4000 ma is acceptable.
Having the screen on will skew the charge cycle, don't.
It takes much longer to charge past 80%
Temperature parameters can greatly alter fast charging times.
Don't routinely discharge past 20%, 40% is a better cutoff.
Charging to 100% is slow and the most stressful thing you can do to an Li except for... doing a full charge cycle charge (5-100%)
If you're seeing roughly a 2%@min charge most of the time in the 40-70% range it's likely fast charging normally.
blackhawk said:
4000 ma is acceptable.
Having the screen on will skew the charge cycle, don't.
It takes much longer to charge past 80%
Temperature parameters can greatly alter fast charging times.
Don't routinely discharge past 20%, 40% is a better cutoff.
Charging to 100% is slow and the most stressful thing you can do to an Li.
If you're seeing roughly a 2%@min charge most of the time in the 40-70% range it's likely fast charging normally.
Click to expand...
Click to collapse
I see 1%/min charge. Around 40-70% it increases to 1.5%/min.
Overall charging is slow. I've seen more than 10 owners complain about their S20FE.
It's a software issue after April update in India.
Ashutosh7x said:
I see 1%/min charge. Around 40-70% it increases to 1.5%/min.
Overall charging is slow. I've seen more than 10 owners complain about their S20FE.
It's a software issue after April update in India.
Click to expand...
Click to collapse
Try reverting Device Care and Device Health Care to factory load.
My Rule #1 if your OS platform is running fast, stable and fulfilling its mission... let it be.
I'm still running my N10+ on Pie, zero issues.
Too many firmware updates skew the stew
blackhawk said:
Try reverting all Device Care apks to factory load.
My Rule #1 if your OS platform is running fast, stable and fulfilling its mission... let it be.
I'm still running my N10+ on Pie, zero issues.
Too many firmware updates skew the stew
Click to expand...
Click to collapse
Haha.. well I'll keep that in mind from now onwards
Ashutosh7x said:
Haha.. well I'll keep that in mind from now onwards
Click to expand...
Click to collapse
Yeah I've learned that the hard way more then once! Firmware updates can (and do) cause permanent damage to the device with a reflash being your only recourse. This can get real messy too.
In reality even outdated Android OS's rarely get infected unless you do something really stupid.
Any OS that is Pie or above is immune to the worst rootkits that can cause "unremovable" infections.
As you can see even a factory reset caused by malware be less trouble than a buggy firmware update to fix.
Always backup your critical data at least 2X on 2 or more hdds that are physically and electronically isolated.
Crashes are rare but they happen.
"I lost all my images, help me..." threads are too common here. There's are no magic time machines and no help☠
Was it the boogey man?
What was he wearing?

Doubt about fast charge

Hello friends. I've just bought a S20 FE Snapdragon to my wife but I have a doubt about fast charge.
My 18W Quick Charge 3.0 and my 27W Quick Charge 4.0 don't work as I wished. They just do a normal charge.
I've read that Exynos Edition uses Samsung 25W charger, but what about the Snapdragon edition? Does it use this 25W charger? What about the 45W charger?
Thank you guys.
yes it supports up to 25watt charging, you have to turn it on yourself if it's not activated.
battery and device care / battery / more battery settings / enable fast charge
3mel said:
yes it supports up to 25watt charging, you have to turn it on yourself if it's not activated.
battery and device care / battery / more battery settings / enable fast charge
Click to expand...
Click to collapse
Thank you for the reply. I've search it and it's enabled by default. I tried an Aukey Quick Charge 3.0 18 W and worked. It says it's fast charge. It's not stellar but way better than 2+ hours.
even without fast charging I don't wait 2 hours
3mel said:
even without fast charging I don't wait 2 hours
Click to expand...
Click to collapse
I didn't try the 15w charger that comes in the box. What I think that was weird was my 27W Xiaomi charger charging with the time beyond two hours until it finishes.
Do you know if the 45W charger works?
nothing above 25watts will work any faster, the maximum current draw is 25watts if it works at all. not all fast chargers do work properly, that might explain your Xiaomi 2hrs plus.
the phone and the charger need to be able to communicate with each other / be running on the same standard.
3mel said:
nothing above 25watts will work any faster, the maximum current draw is 25watts if it works at all. not all fast chargers do work properly, that might explain your Xiaomi 2hrs plus.
the phone and the charger need to be able to communicate with each other / be running on the same standard.
Click to expand...
Click to collapse
Thanks for the enlightment. That's sad. Even my mother's Poco X3 comes with a 33W beast charger.
antonioli84 said:
Thanks for the enlightment. That's sad. Even my mother's Poco X3 comes with a 33W beast charger.
Click to expand...
Click to collapse
that's obviously one of the areas where they saved money to make the phone cheaper I guess.
3mel said:
that's obviously one of the areas where they saved money to make the phone cheaper I guess.
Click to expand...
Click to collapse
Yes man. That's even sad because they put a beast like a Snapdragon 865 on it.
I am satisfied with original 15W charger: 11%~100% in 1h20m is decent speed and at the same time low stress for battery.
antonioli84 said:
I didn't try the 15w charger that comes in the box. What I think that was weird was my 27W Xiaomi charger charging with the time beyond two hours until it finishes.
Do you know if the 45W charger works?
Click to expand...
Click to collapse
Thank you, I was thinking of buying the Mi 27W SonicCharge, now that it doesn't support, looks like we are mostly left with the OEM charger from Samsung only.
demongokul said:
Thank you, I was thinking of buying the Mi 27W SonicCharge, now that it doesn't support, looks like we are mostly left with the OEM charger from Samsung only.
Click to expand...
Click to collapse
True. I just bought a Samsung 25W super fast charge to my Snapdragon 865 and worked. I'll buy one for my father that uses an Exynos SoC too. It's sad to spend money with something like that.
I use the Samsung 20 w brick. When fast charging it get about 2%@minute.
Fast charging will not engage if the start temperature is too low or high.
If the battery has failed*.
Fast charging ramps down at around 80% to slow charging or if battery temperature goes to high. If temperature continues to climb above 102 F or so it will disengage entirely and end that charge cycle.
After 90% the charge rate crawls at as little as 1%@2 minutes.
* check for rear cover bulging. A battery can fail at any time but it's more likely to happen in an older degraded cell. Failures can happen fast, replaced asap, like that same day, if this happens. It can destroy the phone.

Categories

Resources