Related
Anyone else got this? My battery should be fully charged in the morning with the green light on - but the battery is 91% (or 94% or 99%). Then if I plug the charger it jumps from 91% to 100% in seconds.
Just hope its just waiting few cycles to calibrate or something... :/
Yeah, it seems to sort itself out after a few charges.
same with mine, only just happened after the update
I have something else to share about battery charging after update. I usually charge my phone from my computer's usb port during the night.
However after the update USB charging is much slower than before. It would take about 4 hours to charge from empty, but since the updates it only charges with a rate of 13% every hour so it takes more than 7 hours to fully charge from empty.
Anybody else noticed this?
zonkkk said:
I have something else to share about battery charging after update. I usually charge my phone from my computer's usb port during the night.
However after the update USB charging is much slower than before. It would take about 4 hours to charge from empty, but since the updates it only charges with a rate of 13% every hour so it takes more than 7 hours to fully charge from empty.
Anybody else noticed this?
Click to expand...
Click to collapse
yeah, ive had these same exact issues. its so annoying. its just not worth charging via PC usb any more
The GTalk issue is out there again, not sure if its the culprit? I have unchecked the 'automatically sign in' and logged out, but it keeps turning on and logging me in by itself. Im sure its one of the reasons for the battery drain. Anyone else with this?
This morning it dropped from 100% to 88% in less than two hours without really doing anything with the phone...
this whole 'stopping charging till 90% once its reached 100%' issue is rediculous. I cant believe that HTC have added this to the update (cos it didnt happen before) for a phone where users rarely get a days usage out of the phone battery anyway! Now you even stand the chance of starting the day with 10% less charge than you should....rediculous!
if its something they want to include then thats fine, but at least give us the option of turning it off
This is from a german forum:
Let the phone empty the battery until it switch off for its own. Switch on again and do a new boot until the phone is switch off again. When switched off charge the battery completely with the original charger.
... and the 90% issue is gone
I have a second battery I never used before. Im going to put it to charge tonight - and let it do few complete full/drained cycles. Hope works ok.
Wonder if everyone else has the persistent GTalk on? I dont want it!! Arghhhhh....
I have the same issue with mine Desire after updating last week,just get the green light for a full charge and after a few minutes I check my battery widget and lol 10 % are gone.Any chances for fixing that issue?I would appreciate if anyone give a helpful advice.thanx in advance.cheers
zahari said:
I have the same issue with mine Desire after updating last week,just get the green light for a full charge and after a few minutes I check my battery widget and lol 10 % are gone.Any chances for fixing that issue?I would appreciate if anyone give a helpful advice.thanx in advance.cheers
Click to expand...
Click to collapse
look up at post #8 and give that a try. Thats what im gonna do and im sure people will report back on here after theyve tried it to see if it works
topcaser said:
This is from a german forum:
Let the phone empty the battery until it switch off for its own. Switch on again and do a new boot until the phone is switch off again. When switched off charge the battery completely with the original charger.
... and the 90% issue is gone
Click to expand...
Click to collapse
this didnt work with me...still have the 90% issue
Look to this thread, we are talking about the same issue.
http://forum.xda-developers.com/showthread.php?t=689861
gyro11 said:
this didnt work with me...still have the 90% issue
Click to expand...
Click to collapse
The same here...
do we have new info about this issue ?
Is this such a huge issue then? I mean, sure you want it to show the correct %. But does it affect the total duration in any way?
The 10% can eventually level out when being used. I wonder if the device is at e.g. 30% it should actually be 40% in this case, or the 30% is actually quite accurate.
The % is an estimate to give a better representation how much there is left rather than just following the voltage drop. But in the end it will most probably be the voltage that makes the device decide whether or not the battery is empty.
Don't be silly, ofcourse this is a huge issue, did u ever seen such a issue on any other device, even devices of 5$ dont have this strange behavior.
Phone from such class to have such a problem, this is annoying.
And rather iPhone4 signal strenth issue i think here problem is software and it will be fixed
Comon, a 'huge issue'?! It's merely some % figure that's not shown correctly.
Oh well, I guess it's a compliment for the Desire then.. if 10% off is a huge issue, the rest can't be so bad!
Devices of $5 are really bad in showing correct percentages really. One part of the % goes fast, other slow and then suddenly fast again (you know, 1 out of 3 blocks left but flat battery in no-time, while the second block lasted hours and hours). Just because a device says it's 100% loaded, it doesn't mean it's actually correct.
That's why I wondered: Does it actually affect battery performance. If it does, then (and only then) you can call it a 'huge issue'. Otherwise I would just call it a minor annoyance. But obviously stuff like this might be personal eh!
But I'm quite convinced as well this is a software problem and can be fixed. I just don't think it will be very high on the HTC priority list
Ok, i agree its minor annoyance, but anyway it's annoying at least to me, you are right, this percentage may be fake, but for me it will be better if they show me real battery load
cheers
ps. i saw in your signature u r 1.15.405.4 - do u have this behavior on it ?
Well, the Desire is gone to be replaced now. But I didn't have this problem with my old Desire. Then that one got replaced (because HTC scratched it), and the new one did have this problem.
But now the Desire is off again because of weird touchscreen problem, so lets see how the new one holds up
I'm a new Epic owner, still learning the quirks of this phone. I am having issues with my battery giving me a proper charge. I need a reliable GPS for a 3,000 mile road trip coming up, and this phone is all I got... so it needs to work. My issue is that the phone never seems to know how much battery it really has, and often appears to loose battery even while charging, but I'm not convinced that it actually is. So I did a little test. Went on a 15 drive, everything off except for GPS. Played music through the phone, and had the nav up the whole time, with the phone charging.
Started at 70% battery. After getting to my destination in 15 minutes, I was at 64%.
I rebooted my phone, and when it came back up, the battery was at 24%. I did some shopping, and texted my wife pretty much the whole time, phone stayed at 24% for the entire trip.
Rebooted again when I got back to the car, and it jumped up to 36%. Same deal on the ride home, music + nav up for a 15 minute ride. It was still at 36% percent this time when I got home.
So, what's with all the inconsistency here? Is this normal? Should I get a new battery? I'm running SFR 1.2 with Genocide kernel, 200-1000 conservative, and everything undervolted slightly.
Have you tried fully charging your battery and wiping the battery stats through Clockworks? Also I'll have to do some digging but if I remember correctly the reboot thing is a known bug. I believe they said it has something to do with the reboot script. I'll see if I can dig up the link for ya.
MustangMan9498 said:
Have you tried fully charging your battery and wiping the battery stats through Clockworks? Also I'll have to do some digging but if I remember correctly the reboot thing is a known bug. I believe they said it has something to do with the reboot script. I'll see if I can dig up the link for ya.
Click to expand...
Click to collapse
I've wiped battery stats between flashes, but not recently, and not on a full charge. I will try this.
Let us know how it goes, so I can try it.
Well after doing that, my battery life yesterday was probably the longest it's ever been with this phone. Next time I go out, I'll throw it on the car charger again and see if it still drains while using it.
Yeah the proper way to calibrate it is by charging it fully first after a successful flash and then wiping the stats. I usually do a full charge with it on then turn it off and wait til it fully charges again (led turns blue) then boot into CWM and wipe its stats.
No luck, tried it out yesterday and got the same thing... battery drains while on the car charger (tried two chargers). Also get the jumps in % when rebooting, but only sometimes.
I ordered an extended battery for now, hopefully it will do the trick to get me through my move.
It's not an answer likely to make you happy, but the type of car charger you use and the car's electrical output are a factor here. I have personally seen a large difference in recharge time and ability depending on those factors. It may be worth your while to gamble on another $15-30 for a well-reviewed charger. It's definitely made a difference for me.
DroidApprentice said:
It's not an answer likely to make you happy, but the type of car charger you use and the car's electrical output are a factor here. I have personally seen a large difference in recharge time and ability depending on those factors. It may be worth your while to gamble on another $15-30 for a well-reviewed charger. It's definitely made a difference for me.
Click to expand...
Click to collapse
That's what I did. I had a cheap charger, and it didn't work well so I dropped $20 on a Griffin one, and it was no better. I never had a problem keeping my HD2 or Nexus S 4G.
Also, just for ****s, had the phone on a wall charger and made sure to keep the screen alive texting and playing WF... slowly but surely the battery drained while on the charger. So, not my car either. Seems like the screen being on absolutely murders my battery.
Sounds like a pretty scientific review, so that result sucks. However I would actually now throw some suspicion on your battery and/or phone itself. Reason I say so is that I am a heavy phone user at my office and also have screen awake and a lot of use for music and video playing and 4G audio streaming while on wall charger, and consistently get into the upper 90s or full charge while using it so much. See if Sprint will throw a new battery your way, and maybe that will help?
DroidApprentice said:
Sounds like a pretty scientific review, so that result sucks. However I would actually now throw some suspicion on your battery and/or phone itself. Reason I say so is that I am a heavy phone user at my office and also have screen awake and a lot of use for music and video playing and 4G audio streaming while on wall charger, and consistently get into the upper 90s or full charge while using it so much. See if Sprint will throw a new battery your way, and maybe that will help?
Click to expand...
Click to collapse
We'll see how the extended battery I ordered does.
I didn't get the phone subsidized through Sprint, so it has no warranty. I doubt they would help me.
Download Spareparts and see if there are any processes hogging the system, especially in the partial wake lock list. It very well could be a faulty battery although I can't recall anyone ever having a battery issue on this board.
stir fry a lot said:
Download Spareparts and see if there are any processes hogging the system, especially in the partial wake lock list. It very well could be a faulty battery although I can't recall anyone ever having a battery issue on this board.
Click to expand...
Click to collapse
Nope, doesn't look like it.
BTW, I am running rooted stock EC05, no other mods except some frozen apps and Roam Control. I wouldn't wager that necessarily makes the difference, but you never know.
Try a different kernel?
You may want to start fresh and Odin back to stock and reroot.
stir fry a lot said:
Try a different kernel?
You may want to start fresh and Odin back to stock and reroot.
Click to expand...
Click to collapse
I experienced this on both the kernel that comes with SFR, and Genocide.
I may go back to a rooted stock... but I have been really happy with every other aspect of this rom.
You might want to Odin and start over. The only thing I can think of is maybe something is wonky with the modem or something.
stir fry a lot said:
You might want to Odin and start over. The only thing I can think of is maybe something is wonky with the modem or something.
Click to expand...
Click to collapse
I have one more thing to try first.
I've been using Launcher 7. There are lots of complaints about this being a battery hog. Going to give things a shot with ADW and see how I do.
Never heard of Launcher 7. I've seen ADW on the Market, but never tried it. I've used TouchWiz when I first got my phone, but lost it when I rooted with SFR. I am using LauncherPro right now, so try that one.
Also, I read that GPS is a major battery drain for smartphone. I never had a problem using GPS on my Exclaim, so maybe its the GPS drinking up a lot of the battery fluid?
Tbh, you should not worry if your vehicle has an adapter (either itself or cig lighter) and plug it in when the battery goes low.
ThunderOKC said:
Never heard of Launcher 7. I've seen ADW on the Market, but never tried it. I've used TouchWiz when I first got my phone, but lost it when I rooted with SFR. I am using LauncherPro right now, so try that one.
Also, I read that GPS is a major battery drain for smartphone. I never had a problem using GPS on my Exclaim, so maybe its the GPS drinking up a lot of the battery fluid?
Tbh, you should not worry if your vehicle has an adapter (either itself or cig lighter) and plug it in when the battery goes low.
Click to expand...
Click to collapse
Launcher 7 mimics WP7. I'm all for a clean, simple look, and as such, really like it. But its a CPU hog.
ADW is wonderful, and for most of my time with android its all i've used. I've got the paid version. Went ahead and installed it, and so far, so good. Setting it up with my phone on a charger, and my battery is finally going in the right direction while using the phone
I'll go for a drive somewhere tomorrow and see if it charges in the car while running ADW.
Whats the best battery calibration for XDAndroid?!
x12CHRIS18x said:
Whats the best battery calibration for XDAndroid?!
Click to expand...
Click to collapse
SCBS, but it never was completed... jonpry never got it working on other devices, and there were some issues on RHOD. It was a great battery calibration tool...
Since it's not done, it can't be implemented. It is a shame, since it was a lot of hard work by jonpry! At any rate, I just deal with the crappy meter. Not a whole lot else you can do...
There is an app in the market i found called battery calibration, it did just the trick and my meter is much more accurate.
Is there any reason tools like battery left wouldn't work on our setup? Just got myself an extended battery and am a little more interested in getting accurate readings. It didn't used to matter, with a 2 year old 1500mah, I just kept the thing plugged in whenever possible. Now that I've got some actual life, it'd be nice to know when I need to plug in and when not.
It simultaneously says it does and doesn't rely on system reports. I guess it polls the system and then builds a new profile to report based on experience with how long it actually takes to go from x% to y%. I'm not sure if that would overcome xdandroid's inaccurate reporting or not. Seems like if you ran it dead a couple of times, and then turned off calibration, that might do the trick.
I tried noodles recommendation, battery calibration, and it seems to have made it much more accurate.
I do realize that everyone is probably going nuts playing with their new units and draining the battery life mad but I figured we start a thread to get general battery usage times from owners. We could also come up with a format that's acceptable, I'll start with this but we can change it as we go.
Link for app no longer works but here's a quick search result from the market:
https://market.android.com/search?q=battery+percentage&so=1&c=apps
(Or you can tap both the home button and lock button at the same time, built in Samsung feature that saves to your gallery!)
Battery Tips:
OEM battery p/n: EB-L1D7IBA
There is a battery saving mode that is included with the phone under Settings.
Because of the Super AMOLED display, darker colors use less power. Therefore:
Killbynature said:
Another good way to save battery life is to use all black background and Blacked out apps.
Click to expand...
Click to collapse
Battery info without installing 3rd party software:
In the dial pad type: *#*#4636#*#*
paprcut said:
Here are a couple of things that really helped my battery life:
Turn off TMobile's contact sync
- Menu -> Settings -> Accounts and sync -> uncheck T-Mobile Contacts
Ensure mobile data is not active when connected to WiFi
- Install Llama (https://market.android.com/details?id=com.kebab.Llama&feature=search_result) and launch it
- Add an event called WiFi
-- Add condition: WiFi Connected (any network)
-- Add action: WiFi Sleep Policy (never sleep)
-- Add action: Toggle Mobile Data (off)
- Add another event called WiFi Disconnected
-- Add condition: WiFi Disconnected (any network)
-- Add action: WiFi Sleep Policy (sleeps when screen turns off)
-- Add action: Toggle Mobile Data (on)
Click to expand...
Click to collapse
AlphaKoi said:
try SETCPU since you are rooted
make a profile for screenoff (i use 594-128)
that way when your phone sleeps the processor slows way down and doesnt use the battery as much
also if you meant when you sleep.....whenever you can.....use wi-fi and turn APN data off. That way the phone isnt searching for a cell tower constantly and using battery.
Hope this helps....PM questions
Click to expand...
Click to collapse
SetCPU: http://forum.xda-developers.com/showthread.php?t=505419
FOR 100% NO DRAIN ISSUE
ralnee said:
Okay.. I finally have some answers. I registered my phone on the Samsung site, and got into a live chat with a rep. I explained to the rep (as best as I could) that the battery usage was not updating once it reached 100%, without a reboot. After going back and forth (did you try A, yes I did, did you try B, yes I did...), she finally gave the the number of their "dedicated Galaxy S phones voice support team at 1-877-EZ2GALAXY (1-877-392-4252)".
I called the dedicated team and was finally told that this is a known HANDSET ISSUE, and to replace the phone.
I'm performing a full backup using Titanium Backup as I type this, then I'm going to do a NANDROID recovery (I think) and then reset the phone to factory settings. Then I'll replace the phone at the tmobile store I purchased it from.
Click to expand...
Click to collapse
Sent from my SGH-T989 using xda premium
LOL this has become a standard in almost every device forum now, there must always be a Battery Life topic somewhere
might as well make this one a sticky so EVERYONE please use only 1 topic to keep track of the battery life and tips & trick
and avoid making like 200+ topics of the same thing...
Thank you
by the way the i use this App https://market.android.com/details?id=ccc71.bmw
Battery Monitor Widget by 3c
it's simply the best and free, and it even has a great widget
AllGamer said:
by the way the i use this App https://market.android.com/details?id=ccc71.bmw
Battery Monitor Widget by 3c
it's simply the best and free, and it even has a great widget
Click to expand...
Click to collapse
I saw this earlier, might even have it installed, good find!
If I have time I'll try to set up a test for running with/without the Samsung battery saver mode to see if it really helps. I'm pretty curious
Does the SGS2 charge to 100%, unlike the Nexus S?
turbodroid said:
Does the SGS2 charge to 100%, unlike the Nexus S?
Click to expand...
Click to collapse
Would that be something we can check with the app AllGamer provided? I didn't have a Nexus S so I wasn't aware of that issue...
battery life how is in t989
battery life on this phone pls a like to know
I used my phone non stop last night from 8-3 and it still had 20% left. My sensation would've been dead before then.
Sent from my SGH-T989 using xda premium
mziol said:
Would that be something we can check with the app AllGamer provided? I didn't have a Nexus S so I wasn't aware of that issue...
Click to expand...
Click to collapse
Sure, and actually any battery app widget will show the battery level. The Nexus S stops charging at about 96%, so when you would unlpug the charger after it says 'charged', it immediately drops to 95-96%. I ended up buying a couple extra OEM batteries and a wall charger for them so I could pop in 100% charged batteries. Plus it made it so I never have to waste time charging my phone. When the battery dies, I swap batteries. Since this is the same 'family' of phones, I am real curious if the SGS2 does this also? Someone please confirm. Thanks!
turbodroid said:
Sure, and actually any battery app widget will show the battery level. The Nexus S stops charging at about 96%, so when you would unlpug the charger after it says 'charged', it immediately drops to 95-96%. I ended up buying a couple extra OEM batteries and a wall charger for them so I could pop in 100% charged batteries. Plus it made it so I never have to waste time charging my phone. When the battery dies, I swap batteries. Since this is the same 'family' of phones, I am real curious if the SGS2 does this also? Someone please confirm. Thanks!
Click to expand...
Click to collapse
If someone doesn't get to it before me I'll confirm soon. I want to let this bad boy run down to zero before charging again because it's draining a little bit faster than what I want.
http://forum.xda-developers.com/showthread.php?t=1301609
gazmendf said:
battery life on this phone pls a like to know
Click to expand...
Click to collapse
Battery life's been great
Sent from my SGH-T989 using Tapatalk
mziol said:
Would that be something we can check with the app AllGamer provided? I didn't have a Nexus S so I wasn't aware of that issue...
Click to expand...
Click to collapse
not just Nexus S, all Samsung phones are known to charge to 97% ish to prevent battery damage
it's a feature, it's not a bug
many new laptops coming out are doing the same thing
mziol said:
http://forum.xda-developers.com/showthread.php?t=1301609
Click to expand...
Click to collapse
thanks
see, didn't i tell you, i knew this was gonna happen, that's why i stickied, and people still do it
anyways, merged.
AllGamer said:
not just Nexus S, all Samsung phones are known to charge to 97% ish to prevent battery damage
it's a feature, it's not a bug
many new laptops coming out are doing the same thing
Click to expand...
Click to collapse
I've read about this too, I thought they adjusted it on the software side though (so 100% displayed wasn't really 100% but actually more like the 96-97% of the actual charge on the battery, hence the calibration. I might be wrong though.
turbodroid said:
Sure, and actually any battery app widget will show the battery level. The Nexus S stops charging at about 96%, so when you would unlpug the charger after it says 'charged', it immediately drops to 95-96%. I ended up buying a couple extra OEM batteries and a wall charger for them so I could pop in 100% charged batteries. Plus it made it so I never have to waste time charging my phone. When the battery dies, I swap batteries. Since this is the same 'family' of phones, I am real curious if the SGS2 does this also? Someone please confirm. Thanks!
Click to expand...
Click to collapse
It does charge to a full 100% and gives that familiar notification that the battery is fully charged and to unplug it. It drops right to 98% after a few minutes though. Haven't really paid much attention to it just this once.
pablo1215 said:
It does charge to a full 100% and gives that familiar notification that the battery is fully charged and to unplug it. It drops right to 98% after a few minutes though. Haven't really paid much attention to it just this once.
Click to expand...
Click to collapse
I can confirm that I have seen this as well.
Can someone pull their battery cover and post the OEM battery p/n? If I get this phone, I will most definitely order some extra batteries and a wall charger. I get 2-4hrs more battery life in my Nexus S charging them to a full 100% in the wall charger and will likely have similar results with this phone. Thanks
turbodroid said:
Can someone pull their battery cover and post the OEM battery p/n? If I get this phone, I will most definitely order some extra batteries and a wall charger. I get 2-4hrs more battery life in my Nexus S charging them to a full 100% in the wall charger and will likely have similar results with this phone. Thanks
Click to expand...
Click to collapse
EB-L1D7IBA
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,
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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).
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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,