Related
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Do we really need this since it's a Li-ion battery? I know Ni-Mh and Ni-Cad has memory effect, but not on the Li-Ion battery.
I was just wondering the same thing today....simply because there seems to be several different methods to do it. Some say charge 8 hours, turn off, charge and hour, unplug, turn on charge 10 minutes. Then other methods say to do something different....be nice to have an app to walk you through different methods so you know step by step your doing it right
I calibrated mine last night and I'm going to get about 18 hours if not more from it....before yesterday I was getting 9.
The ONLY other different I did was make some profiles on CPU but I cant imagine it would make that much of a difference. I bet its a mix of both
deonjahy said:
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Click to expand...
Click to collapse
That is to funny I was just saying to my wife the other day that I should make one of these programs seeing that there are none already. I hate having to manually kill my battery every night before I charge it again.
Is it needed? It depends on your school of thought, some say yes, some say no. All I know is that on the few devices I have had in the past, if I constantly plug them in to "top them off" then the battery never ends up lasting very long after a few months of doing that. So I am a believer in killing the battery before charging on devices like these.
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
All the battery calibration tools, are basically deleting the file... right?
Is it that hard to boot into recovery and wipe battery stats?
deonjahy said:
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Click to expand...
Click to collapse
I think the second part has to do with hardware. The phones hardware just doesn't have trickle charge implemented and instead lets it drop back down to 90% then starts charging it again.
As for the second part, it came on our phones, even has a default widget. 4G
paulieb81 said:
That is to funny I was just saying to my wife the other day that I should make one of these programs seeing that there are none already. I hate having to manually kill my battery every night before I charge it again.
Is it needed? It depends on your school of thought, some say yes, some say no. All I know is that on the few devices I have had in the past, if I constantly plug them in to "top them off" then the battery never ends up lasting very long after a few months of doing that. So I am a believer in killing the battery before charging on devices like these.
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
Click to expand...
Click to collapse
Um... actually that is (by most accounts) bad for Li-Ion. You want to AVOID completely draining them. All of this stuff is more art than science, but I have way more often heard that completely draining LI batteries is bad. What kills them is the number of cycles they have been through (like -25 +25, -25 +25, -50 +50 would be a full cycle).
You do however want to give them a full up down cycle once in a while (maybe every 1-3 months) for calibration.
Then again, as I said, it is more art than science, and I have heard your method as being better, but the not draining argument seems to be the vast majority.
I'll try to do a little look-see and update this or repost if I find any stronger evidence.
the thing about my phone and battery that ALWAYS baffled me was i would plug it in at night be it at 10% or 22 i would leave plugged in while slept i would wake up unplug and look at battery percentage and it would be like 95.....no other phone has even unplugged and dropped 5 percent by doing nothing????
turn your brightness to 100% and change it so that it never turns off; use wifi tether and play a 720p movie at the same time; oc your kernel to it's highest stable frequency. it'll drain pretty quickly.
I know I might get flamed for this....
Apple suggests, with their laptops, to once a month or so, run the battery completely down. Then let the battery cool down for a little bit. Then give it a full, uninterrupted, overnight charge. I forget if they said to repeat this a second time, then you're good.
This is all from memory of me reading this a couple years ago or so, so our might not be verbatim. Their laptops use lithium ion technology...
(and they used to blow up and melt down too!) Lol!
Wrong word choice and misspelling courtesy of swype.
mykeldrip said:
the thing about my phone and battery that ALWAYS baffled me was i would plug it in at night be it at 10% or 22 i would leave plugged in while slept i would wake up unplug and look at battery percentage and it would be like 95.....no other phone has even unplugged and dropped 5 percent by doing nothing????
Click to expand...
Click to collapse
That's because the phone stops charging when it reaches 100%, and runs off of battery probably until it reaches in the low 90s, then charges again. You won't ever notice this because the light will always be green. However, you'll notice that unplugging it a few moments after it turns green, the battery will stay anywhere from 100%-98% for a while. At least on my phone it does.
Is there any way to make this program "auto run" during sleep so it can do everything it needs to do during the night charge (similar to quickpull for blackberry)
laydros said:
I think the second part has to do with hardware. The phones hardware just doesn't have trickle charge implemented and instead lets it drop back down to 90% then starts charging it again.
As for the second part, it came on our phones, even has a default widget. 4G
Um... actually that is (by most accounts) bad for Li-Ion. You want to AVOID completely draining them. All of this stuff is more art than science, but I have way more often heard that completely draining LI batteries is bad. What kills them is the number of cycles they have been through (like -25 +25, -25 +25, -50 +50 would be a full cycle).
You do however want to give them a full up down cycle once in a while (maybe every 1-3 months) for calibration.
Then again, as I said, it is more art than science, and I have heard your method as being better, but the not draining argument seems to be the vast majority.
I'll try to do a little look-see and update this or repost if I find any stronger evidence.
Click to expand...
Click to collapse
I am by no means an expert so if you find any reliable info on this and can link us to read, I would love to learn more. All I know is that it is commonly said to drain rechargeable batteries and that I have seen that topping them off very often does lead to battery life degradation.
Tyzing said:
Is there any way to make this program "auto run" during sleep so it can do everything it needs to do during the night charge (similar to quickpull for blackberry)
Click to expand...
Click to collapse
There is no need to fully drain the battery. Its purpose in calibration is to configure the software that is correlating voltage to percentage charged. That's all. Regarding the old Apple advice, that is doing the same thing. It will not affect the hardware.
Now, what WILL affect the hardware is charging itself. Every charge/discharge cycle will reduce the total capacity of the battery. This is why the EVO will not cycle on it's own until 10% discharged. It's improving the overall battery life by that restriction.
In short, you will save money overall by getting a higher capacity battery that you don't force to charge too often. Draining your battery does nothing but give you peace of mind and it only really needs recalibrating when it's total capacity has been reduced which isn't often. 3-6 months.
Sent from my PC36100 using XDA App
herbthehammer said:
I know I might get flamed for this....
Apple suggests, with their laptops, to once a month or so, run the battery completely down. Then let the battery cool down for a little bit. Then give it a full, uninterrupted, overnight charge. I forget if they said to repeat this a second time, then you're good.
This is all from memory of me reading this a couple years ago or so, so our might not be verbatim. Their laptops use lithium ion technology...
(and they used to blow up and melt down too!) Lol!
Wrong word choice and misspelling courtesy of swype.
Click to expand...
Click to collapse
Yeah except that's not a good idea, it will kill the weak cells.
I understand. Still think it would be useful if it would do the "juice until LED changes" method while sleeping though
paulieb81 said:
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
Click to expand...
Click to collapse
I'm interested!
Btw - what are the charging calibrations people are using? Are you seeing one working better than another?
Im a noob, so take what I say worth a grain of salt but yesterday I did the standard method where you fully charge...turn off...plug back in until led changes green and do it a few times.
I went from 9 hours to 17 hours with no other changes except a few profiles in setCPU.
I did this just last night so my results are fresh.
Tyzing said:
I calibrated mine last night and I'm going to get about 18 hours if not more from it....before yesterday I was getting 9.
The ONLY other different I did was make some profiles on CPU but I cant imagine it would make that much of a difference. I bet its a mix of both
Click to expand...
Click to collapse
A few SetCPU profiles is all it takes to see a dramatic increase in battery life, especially while screen off. If you disable it I bet whatever gain you think was from 'calibrating' it disappears.
I recently got a Note 8 (for the pen) after having a Blackberry Playbook. The Note 8 charges fine, but if I put it to sleep overnight (with a full or nearly full charge, I find a low battery notice in the morning, or it does nothing unless plugged in. The Playbook will go down by maybe 10% overnight. I used the app manager to turn off all the applications I can see. Samsung support chat had me reset the device to factory settings, but the battery is still not sleeping correctly--or is it?
Since the playbook is heavier, I assume it has a heftier battery. Maybe you simply must power down the Note 8 at night? I like the device, but if I got a lemon I had better return it now.
What is the normal battery behavior on this thing? Thanks for any help. (BTW, I am a total android newbie and not looking forward to spending yet more hours working on this.
jventola said:
I recently got a Note 8 (for the pen) after having a Blackberry Playbook. The Note 8 charges fine, but if I put it to sleep overnight (with a full or nearly full charge, I find a low battery notice in the morning, or it does nothing unless plugged in. The Playbook will go down by maybe 10% overnight. I used the app manager to turn off all the applications I can see. Samsung support chat had me reset the device to factory settings, but the battery is still not sleeping correctly--or is it?
Since the playbook is heavier, I assume it has a heftier battery. Maybe you simply must power down the Note 8 at night? I like the device, but if I got a lemon I had better return it now.
What is the normal battery behavior on this thing? Thanks for any help. (BTW, I am a total android newbie and not looking forward to spending yet more hours working on this.
Click to expand...
Click to collapse
If you look in the battery option in the settings menu, it will give you a breakdown of the battery usage and should help you identify what the main culprets were in eating up your battery. My guess it would be having all the connections (GPS, wifi, etc on while the screen is off). It could be something else, either way that should help you narrow down what the issue is. Click on the graph to get a view on the hardware usage.
take it back; the battery shouldnt go down more than a % or 2 every hour when idling, so you got a dud..
jventola said:
I recently got a Note 8 (for the pen) after having a Blackberry Playbook. The Note 8 charges fine, but if I put it to sleep overnight (with a full or nearly full charge, I find a low battery notice in the morning, or it does nothing unless plugged in. The Playbook will go down by maybe 10% overnight. I used the app manager to turn off all the applications I can see. Samsung support chat had me reset the device to factory settings, but the battery is still not sleeping correctly--or is it?
Since the playbook is heavier, I assume it has a heftier battery. Maybe you simply must power down the Note 8 at night? I like the device, but if I got a lemon I had better return it now.
What is the normal battery behavior on this thing? Thanks for any help. (BTW, I am a total android newbie and not looking forward to spending yet more hours working on this.
Click to expand...
Click to collapse
hi
(i stated this in another thread while back),
i am on stock rom,not rooted and leaving Note8,in standby, overnight i get +_ 1% drainage for plus9/11...12 hrs..
i ran n test to see my battery drainage, and did 25 hrs on 6 % ( from 100% down to 94 %)
in this period i connected to web,twitter update weather update,google play update ,otherwise i left it to see results ..see screenshot
i would say its a 3 rd party app or otherwise you did not" tweak" ...3g off ,location ,etc.etc it right
My battery drain is excellent.i have had Note 8 for a couple months and also have the note 2
the note 8 gives better battery service( slightly ) but better ..in my case..
good luck
wase4711 said:
take it back; the battery shouldnt go down more than a % or 2 every hour when idling, so you got a dud..
Click to expand...
Click to collapse
This. Don't even waste your time trying to resolve the problem. You definitely got a lemon.
Thanks--now store or Samsung?
Thanks to everyone for the replies. I just did a different kind of reset with Samsung--holding down buttons rather than going into settings. We will see. But if the problem persists, am I better of returning to Best Buy (I missed their fifteen day return window by a day or so) or using the service request directly with Samsung? (The store involves a bit of a drive.)
Update on battery
I just wanted to post a quick update. The hard reset (holding down the power and volume up buttons together) seems to have done the trick. At 1:30 today my battery read 83% and I have had it in sleep mode for 5 hours now and it is reading at 82%. Unless it is just that the meter is wrong, the Samsung Support Chat process SEEMS to have worked. I will try tonight and make double sure.
Once again, thanks to all who replied. The information really helped.
If you got a lemon, I joint to make a big lemonade!
I have a 5120 LTE.
After a full charge it doesn't last for half a day.
I paid attention tweaking everything: from LTE to 3g, saving energy mode, screen light, wifi on-off, gps etc.
Now the point is: I wanted this tablet to do a lot of things and it seems I can't really do anything.
And yes I already have a hard reset.
It's rooted so the guarantee is spoiled.
I hope 4.2.2 release will help me somehow.
Anyone suggesting a good tutorial to change the battery?
Hi;
From JerryRigEverything's Teardown video I can tell that is not easy to replace the battery on the G7 plus if would void the water resistance and since I'll keep this phone for at least 2 years I have the following question about how to preserve the battery in the best conditions possible:
In order prevent the battery degradation, is it better to use: Fast or Wireless Charger?
Do you have any other advice regarding this topic?
3000 mAh isn't that great to begin with and if you add that it could get worse over time then it's better to take precautions. I wouldn't care that much if replacing the battery wasn't that hard. I mean it would require a good technician in order to get a proper reparation and I'm not sure I know one.
I apologize for the spelling or grammar mistakes, I'm not a native speaker and I'm still learning.
Charge whenever you can and dont let it go under 50%
The more you discharge it the chorter lifespan it get
Disable all crap you do not use.. When at home, and phone not used much. Turn off Wifi, BT, Location and even Data..
maydayind said:
Charge whenever you can and dont let it go under 50%
The more you discharge it the chorter lifespan it get
Click to expand...
Click to collapse
According to what I've read. I think the ideal scenario would be mantaining the battery charge between 20% and 80%.
doubledragon5 said:
Disable all crap you do not use.. When at home, and phone not used much. Turn off Wifi, BT, Location and even Data..
Click to expand...
Click to collapse
Yes. That's exactly what I do with every smartphone I've own. I usually go heave on optimization of every single aspect regarding performance and battery life.
I use WIFI on, Data off, BT off, location off, auto brightness setting, Always on display off, no facial unlock, WhatsApp tweak to get only important notifications, the display is set down to 1080p instead of 1440p. When I play PUBG mobile I turn on Airplain mode and plug in headphones.
I purchased Acubattery. It has alarms that let you know if you are overcharged (more than 80% it says).
It also does a really good job of monitoring your current capacity and giving your hints on what is draining your device during the day. It will estimate your current battery capacity, which is nice if your phone shows they battery condition as Good (whatever that means Huawei Nexus p6).
Basically your battery is going to self destruct, but I find this app really gives you a good amount of information to make good decisions about how you use your phone.
I disagree with every advice here!
Check out my thread from my last phone :
https://forum.xda-developers.com/xz...ry-restore-t3796461/post76653346#post76653346
Been reading dozen of threads on diffrent forums regarding people complaining about their poor battery health, performance, etc.
Here are my advices to obtain near 100% battery health as years passes by (I have an galaxy s3 from 2012 with 90% and an LG g3 dual sim from 2014 with 92% ???), it all has to do with user behavior:
1. Avoid not charging to at least 95% then discharging it to near 0% (example: you charge it from 0 to 50 then you go outside and discharge it to near 0)
2. Avoid high usage for more than 3 consecutive days.
3. Drain SLOWLY from 100 to 0 once a week. This drain must be done at least in 1,5 - 2 days.
4. Charge from 0 to 100 with phone off at least 1 time / week
5. Every 2 weeks Let the phone discharge in 2-3 days, with minimal use, like just calling.
6. Repeat nr. 3 as much as you can
7. Avoid putting to charge when the phone is hot.
8. Avoid charging while using the phone.
9. Avoid fast charging.
10. From 100 to 70 and from 30 to 10 go slowly.
11. Never let it discharged 5, 10, 20 % more than 1 day
12. Never charge from 20, 30 to 100.
And many more will come.
Cheers.
??????
joser0913 said:
Hi;
From JerryRigEverything's Teardown video I can tell that is not easy to replace the battery on the G7 plus if would void the water resistance and since I'll keep this phone for at least 2 years I have the following question about how to preserve the battery in the best conditions possible:
In order prevent the battery degradation, is it better to use: Fast or Wireless Charger?
Do you have any other advice regarding this topic?
3000 mAh isn't that great to begin with and if you add that it could get worse over time then it's better to take precautions. I wouldn't care that much if replacing the battery wasn't that hard. I mean it would require a good technician in order to get a proper reparation and I'm not sure I know one.
I apologize for the spelling or grammar mistakes, I'm not a native speaker and I'm still learning.
Click to expand...
Click to collapse
There are so many things that could affect your battery life over a 2yr period. I own both the G6 and G7 and the G6 still gives me pretty good standby and SOT after 2yrs.
General rule says you avoid fast charging wherever possible as this will affect battery over the long run. Avoid scenarios wherein the battery might overheat.
Also little things like simply living in an area with bad coverage will eat through your battery like nothing else.
If your worried about battery replacement, im fairly sure LG service centres do it for a pretty resonable price anyways.
Hi, I'm currently experiencing some problems with my Redmi Note 8 Pro.
I've had my phone for less than a month, and it's starting to get issues with the battery.
The battery, whether I charge it with the original wall charger, or I use a computer to charge it, or o use an alternative wall charger (that is for slow charge), it can't get to 100%.
It gets stuck at 99% and says, full charge in 2 minutes, even though the 2 minutes have passed long time ago.
I haven't done a full battery drain, and I always try to use a slow charge charger.
I also haven't done a full cycle without using the phone, maybe that's the problem.
But I'm worried, and I need some help, because I got the phone (as I said) less than a month ago, I haven't even payed the first installment.
I'm still within the seller's warranty, but I need some advices to what can I do, because returning the phone to the seller, to make a change, is gonna cost me 15 to 20 days. And I don't have any other phone to use.
Please, if someone can give me some advice, or tell me what to do, it's completely welcome.
Thanks.
And by the way, I'm using the Global 128Gb version, if that helps.
Edit 29/01/2020: I did a full discharge, because I couldn't read the quotes earlier, and I didn't realize how big the problem could be. Now, the phone can't go over 79%.
I didn't expected this issue with my RN8P, but with other phones (cheap noname ones).
A discharge to around 5%, and a full charge without unplugging did the trick for me.
AnonyIsRight said:
Hi, I'm currently experiencing some problems with my Redmi Note 8 Pro.
I've had my month for less than a month, and it's starting to get issues with the battery.
The battery, whether I charge it with the original wall charger, or I use a computer to charge it, or o use an alternative wall charger (that is for slow charge), it can't get to 100%.
It gets stuck at 99% and says, full charge in 2 minutes, even though the 2 minutes have passed long time ago.
I haven't done a full battery drain, and I always try to use a slow charge charger.
I also haven't done a full cycle without using the phone, maybe that's the problem.
But I'm worried, and I need some help, because I got the phone (as I said) less than a month ago, I haven't even payed the first installment.
I'm still within the seller's warranty, but I need some advices to what can I do, because returning the phone to the seller, to make a change, is gonna cost me 15 to 20 days. And I don't have any other phone to use.
Please, if someone can give me some advice, or tell me what to do, it's completely welcome.
Thanks.
And by the way, I'm using the Global 128Gb version, if that helps.
Click to expand...
Click to collapse
When I cannot tell if its some HW related problem with your phone or battery but I am really wondering why you want to do full charges (and/or discharges)? It is known to wear battery way faster. Li-on or Li-po batteries do not have memory effects and it is known to be best to always keep them charge for example between 15-20% and 80-85% trying to never get bellow or above.
This phone has a pretty big battery, that normally should be enough to bring you through a day of normal use (if it does not you may want to check your hungry apps running in the bg) but maybe you are an heavy gamer or use your phone for some heavy usage stuff?
Even then, it would be best to do 2 quick 15 to 50-60% in about 30 mins with QC2 (18W original Wall charger) rather than one unique full charge.
Looking at what you said with slow charging you probably know all of that already, but the faster you charge the battery, even if same %, the faster it will discharge. As odd as it is, remains factual.
I dont know if you ever used an external amperemeter or similar to check what kind of current was actually going through your battery while charging, but if you do you will notice the first % goes way faster to charge than the last few %. The chip dealing with the battery charge, charges slower and slower toward the end because it could damage the battery, when on the opposite it is rather safe to quick charge the % in the middle.
Also you may want to check your alternative 'slow wall charger' to make sure it provides you with a steady voltage current (V). If it is fluctuating too much, it may damage your battery.
If you want to do further research about the subject, there is a note on the RN8PRO Telegram group explaining how to calibrate your battery by deleting some system files (root needed as far as I remember) and having some charges/discharges steps. Personally I have not done it because it requires to go to 100% and 0% a few times, and depleting a Li-ion/Li-po battery completely can damage it irreversibly. They are not meant to be discharged fully period. Now battery should not be completely drained when OS takes the phone off, that said we never know for sure since we cannot change that setting unlike on our windows laptops, but I dont want to take the risk.
When you are stuck to 99% it kind of looks to be the OS not being able to know if the battery is fully charged or not. In that state of things, have you tried to turn off the device without unplugging to see if the off-mode charging screen (the small battery screen with % when you turn your phone off) also remains at 99% or gets to 100% at some point? Because maybe all you need is to restart the phone to make OS aware the battery is fully charged. Could be a SW known/unknown issue/bug to be fixed with future updates for all I know.
But again, I don't think you should fully charge and/or discharge (if you do) your phone when you can avoid it.
Just my 2 cents.
Hope this helps,
Regards,
-=Fxs=- said:
I didn't expected this issue with my RN8P, but with other phones (cheap noname ones).
A discharge to around 5%, and a full charge without unplugging did the trick for me.
Click to expand...
Click to collapse
I tried it, and... it got worse.
Now it can't go over 79%. :c
Thanks for trying to help anyways.
Muad.Dib said:
When I cannot tell if its some HW related problem with your phone or battery but I am really wondering why you want to do full charges (and/or discharges)? It is known to wear battery way faster. Li-on or Li-po batteries do not have memory effects and it is known to be best to always keep them charge for example between 15-20% and 80-85% trying to never get bellow or above.
This phone has a pretty big battery, that normally should be enough to bring you through a day of normal use (if it does not you may want to check your hungry apps running in the bg) but maybe you are an heavy gamer or use your phone for some heavy usage stuff?
Even then, it would be best to do 2 quick 15 to 50-60% in about 30 mins with QC2 (18W original Wall charger) rather than one unique full charge.
Looking at what you said with slow charging you probably know all of that already, but the faster you charge the battery, even if same %, the faster it will discharge. As odd as it is, remains factual.
I dont know if you ever used an external amperemeter or similar to check what kind of current was actually going through your battery while charging, but if you do you will notice the first % goes way faster to charge than the last few %. The chip dealing with the battery charge, charges slower and slower toward the end because it could damage the battery, when on the opposite it is rather safe to quick charge the % in the middle.
Also you may want to check your alternative 'slow wall charger' to make sure it provides you with a steady voltage current (V). If it is fluctuating too much, it may damage your battery.
If you want to do further research about the subject, there is a note on the RN8PRO Telegram group explaining how to calibrate your battery by deleting some system files (root needed as far as I remember) and having some charges/discharges steps. Personally I have not done it because it requires to go to 100% and 0% a few times, and depleting a Li-ion/Li-po battery completely can damage it irreversibly. They are not meant to be discharged fully period. Now battery should not be completely drained when OS takes the phone off, that said we never know for sure since we cannot change that setting unlike on our windows laptops, but I dont want to take the risk.
When you are stuck to 99% it kind of looks to be the OS not being able to know if the battery is fully charged or not. In that state of things, have you tried to turn off the device without unplugging to see if the off-mode charging screen (the small battery screen with % when you turn your phone off) also remains at 99% or gets to 100% at some point? Because maybe all you need is to restart the phone to make OS aware the battery is fully charged. Could be a SW known/unknown issue/bug to be fixed with future updates for all I know.
But again, I don't think you should fully charge and/or discharge (if you do) your phone when you can avoid it.
Just my 2 cents.
Hope this helps,
Regards,
Click to expand...
Click to collapse
Hi Muad.Dib,
Well, I wanted to do that full charge a/o discharge because I thought it would help with the issue (turns out, it didn't, it got worse as you said) but I didn't know the effects of this before, I always thought it wouldn't have any effect. I wish I could have read your reply before doing it (I was busy and couldn't read it).
The battery lasts for more than a day (or it did before), and I always try to keep it clean from battery draining apps, and I don't play games that much on the phone, less than an hour per day.
Do you recommend me to do those 2 charges to 60% in my state? (phone can't get over 79% now).
I haven't ever used an amperemeter because I don't have one, and neither I do know how to use one of those.
If you can lend me a hand and give me the link to join the Telegram Group, it would very helpful ??. But I don't want to root the phone yet, cause the seller's warranty stills intact.
And yes, I have tried it and the off-mode charging screen keeps showing me 99% (or kept, because now it keeps at 79%). And I also tried few restarts and it didn't fixed it. :c
And I'm sorry, I wish I could've avoided it, but I read your reply too late.
Thanks for trying to help me anyways.
PS. I will try to do a factory reset to see if the MIUI update has something to do with the issue (because the seller told me to do it, and I will do it, though I don't think it could solve the issue). Please, if you have any advice before I do it, you could help me a lot. ( I'll do it something around 11:00 AM in GMT -03:00)
AnonyIsRight said:
Hi Muad.Dib,
Well, I wanted to do that full charge a/o discharge because I thought it would help with the issue (turns out, it didn't, it got worse as you said) but I didn't know the effects of this before, I always thought it wouldn't have any effect. I wish I could have read your reply before doing it (I was busy and couldn't read it).
The battery lasts for more than a day (or it did before), and I always try to keep it clean from battery draining apps, and I don't play games that much on the phone, less than an hour per day.
Do you recommend me to do those 2 charges to 60% in my state? (phone can't get over 79% now).
Click to expand...
Click to collapse
Hey.
Very strange what is happening to you it's probably the first time I read about something like this.
Please note I am no battery expert either.
From own experience and friends, usually when you wear a battery (or it worn by itself after use or bad storage condition before being sold) it still goes up to 100% but does not retain original design capacity anymore. The usual behavior is like for example you still have like 30% left, and suddenly it drops to like 5% and you only have a few seconds to plug it in the charger.
When that's happens it is time to change battery.
In your case I really have no idea what could prevent HW/SW to reach 100%.
AnonyIsRight said:
I haven't ever used an amperemeter because I don't have one, and neither I do know how to use one of those.
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Oh those are easy to use as I meant some kind of small USB device that you plug in between your charger and your phone. They are cheap and you get them for like 10 bucks on Amazon. Readings might not be 100% accurate but they still give a decent idea as they display Voltage, Amperage and accumulated capacity/used current for device plugged.
AnonyIsRight said:
If you can lend me a hand and give me the link to join the Telegram Group, it would very helpful . But I don't want to root the phone yet, cause the seller's warranty stills intact.
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As I said I am nothing like an expert or anything so I am unsure what I can do to help. However I did check the telegram group and I confirm you the battery calibration thing is a rooted thing.
To find that group it is pretty easy just search for Redmi Note 8 Pro OFFICIAL from telegram and join the group.
You find quite a few things there.
AnonyIsRight said:
And yes, I have tried it and the off-mode charging screen keeps showing me 99% (or kept, because now it keeps at 79%). And I also tried few restarts and it didn't fixed it. :c
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Normally nothing you could have done, could have damaged the battery this way. Depleting it completely could have shorten its life or damage its overall capacity, but by all means there is no way in just a month you could have damaged the battery to this point. So either the OS is not reading things right (what version of OS and phone do you have - which region is your rom?) or either sensors or battery have a problem.
Since you still are under warranty period I would definitely get it replaced. Maybe you got a faulty batch or something. This happens.
AnonyIsRight said:
PS. I will try to do a factory reset to see if the MIUI update has something to do with the issue (because the seller told me to do it, and I will do it, though I don't think it could solve the issue). Please, if you have any advice before I do it, you could help me a lot. ( I'll do it something around 11:00 AM in GMT -03:00)
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This definitely cannot hurt to try.
If that does not work return the phone.
Just to know, based on your flag I would assume you are in Chile but I may be wrong. If I am not mistaking it is summer there and probably is pretty hot. I wonder if 'too hot' could damage the battery.
Hope this helps.
Regards,
Hi,
Recently my Redmi Note 8T battery percentage acts weird, after I had it charged to 86%, it quickly dropped to around 50%, then it turned off itself, bootloop-ing countless times.
Strange enough if I have it plugged to any power source it would turn on, but as soon as I unplugged it, it turned off, sometimes immediately, sometime after usage of 2-5 minutes.
My phone is unlocked, and for years I never use root except to restore data. Only custom roms + gapps. And my storage is not encrypted (use dfe).
I know it's battery problem, but my main question is: I'm able to enter twrp or ofox, and it shows battery percentage.
And while in recovery, it never turn off itself, it's like the battery is working properly, I'm able to use it for long time, tried 1-2 hours before I hit power off from recovery.
But as soon as I hit reboot to system without any charger plugged in, it's bootlooping again.
I tried to swap to different kernel, they didn't help. So I suspect the issue isn't coming from kernel.
Just somehow the battery percentage stored in bootloader (?) or something else and the percentage read by twrp/ofox is different
What I'm able to:
1. Boot the device with charger plugged in
2. Boot to any recovery
3. Boot to fastboot
What I haven't do yet:
1. Flash back original miui EEA
2. Format data
3. Let the battery empty and charge it after it
I'm not sure about format data would help, I just do clean flash every time change rom.
About flash to miui, I noticed sometime phone displays the original offline charging indicator (the big battery icon with color) shows empty when rebooting (just before going bootloop).
But when I offline charge (using custom roms) and got different display of offline charge (I believe the custom offline charge from the roms), the percentage shows the same as being shown in twrp/ofox.
Does anyone here knows maybe how to reset/recalibrate battery level in the bootloader (?, again I'm sorry, I'm not sure where it's located) so it can show correct data as same as what being read in recovery?
That's sign of your battery is dying. There is plenty of thread about it in this forum also with different phones.
Just replace the battery, or you can bypass the fuse(?) on the bms if you don't want to replace the battery, idk how safe it is though.
You already know it, its not software issue, you cannot recalibrate, there is no way around it
I just facing same issue for the past few days, I tried everything i can from software side, nothing works. In the end, I just replace my battery and now everything working just fine.
SkyFlex said:
That's sign of your battery is dying. There is plenty of thread about it in this forum also with different phones.
Just replace the battery, or you can bypass the fuse(?) on the bms if you don't want to replace the battery, idk how safe it is though.
You already know it, its not software issue, you cannot recalibrate, there is no way around it
I just facing same issue for the past few days, I tried everything i can from software side, nothing works. In the end, I just replace my battery and now everything working just fine.
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Yes, I was wondering if there's anyway to fix it without going to service centre or DIY opening its backcover and change the battery, lol.
I never heard of bms, what is it?
As for now, I have left it more than 24 hours on ofox and the battery is not drained yet, so obviously, the battery itself still has some juiced in it yet cannot be used outside recovery/fastboot mode.
x3r0.13urn said:
Yes, I was wondering if there's anyway to fix it without going to service centre or DIY opening its backcover and change the battery, lol.
I never heard of bms, what is it?
As for now, I have left it more than 24 hours on ofox and the battery is not drained yet, so obviously, the battery itself still has some juiced in it yet cannot be used outside recovery/fastboot mode.
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Its Battery Management System. A little board mounted on the battery.
What bms does? The name is self-explanatory, that little board have responsibility for protection, monitoring like thermal, battery health, regulate charging and discharging, something like that.
Probably because in recovery/download mode it didn't draw much power from the battery compare to booting up device or doing heavy task. So the bms like "Alright, that's safe enough".
If you want to try to "recalibrate", try deleting batterystats.bin under /data/system, also under battery-history and battery-saver folder
SkyFlex said:
Its Battery Management System. A little board mounted on the battery.
What bms does? The name is self-explanatory, that little board have responsibility for protection, monitoring like thermal, battery health, regulate charging and discharging, something like that.
Probably because in recovery/download mode it didn't draw much power from the battery compare to booting up device or doing heavy task. So the bms like "Alright, that's safe enough".
If you want to try to "recalibrate", try deleting batterystats.bin under /data/system, also under battery-history and battery-saver folder
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Nah that "calibrate" process was a placebo, it was known for it long ago. Anyway, your hunch is correct. The battery's fuse was blown. Had to replace the battery, don't want to mess with solder.
I was quite surprised as my daily usage never been heavy and I'm quite careful using it. I never play any games on the phone. Never use it when it's being charged. Rarely overcharged it. Charge always around 20-30% to 85-92%. Use original charger, just recently I switched to Xiaomi 33w. Yet still the fuse was blown after all. Not sure whether the 33w charger was the culprit.
x3r0.13urn said:
Nah that "calibrate" process was a placebo, it was known for it long ago. Anyway, your hunch is correct. The battery's fuse was blown. Had to replace the battery, don't want to mess with solder.
I was quite surprised as my daily usage never been heavy and I'm quite careful using it. I never play any games on the phone. Never use it when it's being charged. Rarely overcharged it. Charge always around 20-30% to 85-92%. Use original charger, just recently I switched to Xiaomi 33w. Yet still the fuse was blown after all. Not sure whether the 33w charger was the culprit.
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Same case here, I used 18w charger ( Aukey PA-T9 ) never charge below 20-30% since I bought this device, I'm pretty sure my battery wear still quite good, the battery also physically good not swollen, just the fuse. Although for the last few months I've been using the phone while charging ( watching live stream on Twitch ) which I know the app is used high cpu usage compare to youtube/local video player ( MX player )
Probably not, but who knows, I don't want to dig deeper what cause it, I'm not knowledgeable about electrical, but I do think the fuse worn off for some reasons and blow under normal loads.
For me its been around 3 years, the battery need to replace anyway.