Weird battery stats - Xiaomi Redmi Note 3 Questions & Answers

Hi,
My phone battery is behaving abnormally since few days. The phone goes off at around 40% battery showing a low battery warning. It does not switch on unless I put it on charge and switch it on. After switching it on it shows random battery percentage like 23% or 71% etc. The battery is also discharging fast these days.
My OS is Miui 8.5.7.0 updated 2 or 3 weeks ago.

hayabusa_ryu said:
Hi,
My phone battery is behaving abnormally since few days. The phone goes off at around 40% battery showing a low battery warning. It does not switch on unless I put it on charge and switch it on. After switching it on it shows random battery percentage like 23% or 71% etc. The battery is also discharging fast these days.
My OS is Miui 8.5.7.0 updated 2 or 3 weeks ago.
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Click to collapse
This could be due to faulty or a degraded battery
I have had also faced this problem on my previous devices and that was bcs of degraded battery over time
Can u tell me what's ur device age and also to make sure it's a faulty battery or something u should first take backup of everything and then clean Flash miui using Mi Flash tool

Thank you for replying. My phone is of 1 year old. I can bacup & clean flash but I have too many important things on my phone that I do not have time or I can't take risk of missing something. If I have no options then I can flash. The battery quality of Redmi is very poor, my nexus tab is running fine even after using it for 4 years and doing more recharge cycles.

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[Q] Official battery, reporting false capacity

I've bought a new legit/official (has holo, serials etc.) Atrix battery.
Charged it to 100%.
During usage, its draining literally 10% an hour with very light usage (several minutes an hour). In short its draining at three times the speed of my 1 year old battery.
I've tried wiping battery stats but that didn't work.
Any ideas, or is the stats just buggered and I just gotta run it in? (ie it will go to zero then sit on zero for 5-6 hours lol)
note I've gone back to my original battery in meantime rofl
EDIT: The actual problem is that the batt is reporting much less capacity than it actually has
|The new battery is great capacity wise lasts till midnight
However the stats are still totally screwed, it will say 1% by midday, then hum along until midnight fixed at 1% (I dunno exactly how long for as I can't take the risk of leaving it off at night then its dead and I don't wake up for work in morning). |
Could just be a bad battery. Considering the old works fine that's probably the problem.
wintermute000 said:
I've bought a new legit/official (has holo, serials etc.) Atrix battery.
Charged it to 100%.
During usage, its draining literally 10% an hour with very light usage (several minutes an hour). In short its draining at three times the speed of my 1 year old battery.
I've tried wiping battery stats but that didn't work.
Any ideas, or is the stats just buggered and I just gotta run it in? (ie it will go to zero then sit on zero for 5-6 hours lol)
note I've gone back to my original battery in meantime rofl
Click to expand...
Click to collapse
wintermute000 said:
I've bought a new legit/official (has holo, serials etc.) Atrix battery.
Charged it to 100%.
During usage, its draining literally 10% an hour with very light usage (several minutes an hour). In short its draining at three times the speed of my 1 year old battery.
I've tried wiping battery stats but that didn't work.
Any ideas, or is the stats just buggered and I just gotta run it in? (ie it will go to zero then sit on zero for 5-6 hours lol)
note I've gone back to my original battery in meantime rofl
Click to expand...
Click to collapse
I have a similar problem with the original battery that came with phone it drains the charge quickly to 1% and on one 1% it gives a battery life of more time than the time it took to discharge from 100%.i was thinking of buying a new battery but now i am confused that what should i look before buying the battery to get a battery that can show me the exact charge on the indicator.
I have tried all tutorial of calibration used different roms and kernels but nothing seems to solve the issue.
well I might try that then, just let it run to zero see how long it lasts then see whether the stats come good over time
OK help needed.
The new battery is great capacity wise, lasts from morning to bedtime with >2 hours of bluetooth music, 30 mins calls, a ton of texts.
However the stats are still totally screwed, it will say 1% by midday, then hum along until midnight fixed at 1% (I dunno exactly how long for as I can't take the risk of leaving it off at night then its dead and I don't wake up for work in morning).
Aside from wiping stats which I have tried, is there anythnig else I can do?
I really want to use it, like I said real life capacity is great, but if its always giong to be reporting 1% its a bit dicey not knowing how much batt you really have left...
same issue with my spare battery not sure wtf is going on
When I have battery stat problems the following has always fixed it:
1) leave phone on until it dies
2) take back off phone and plug into wall charger
3) after batt symbol shows 100% (without unplugging or turning off the phone) remove the battery. After a minute or so battery symbol will have question mark
4) put battery back in and leave it for at least 2 hours (seems like I have had to press the switch sometimes but you don't want the phone to reboot or you will have to start all over)
5) reboot into CWM and wipe the battery stats
6) reboot and it should be good to go
Anyone else found a fix to this yet?
I'm now running ICS (turl build) issue is still there.
Steps taken to resolve
- discharge to zero
- charge to max
- wipe stats
still there.
The weird thing is that the actual capacity is fine, it can last all day no worries, just from midday onwards it thinks its 1% so has annoying LED flashing at you, also you have no idea how much batt it actually has.
Edit: I just realised your suggestion above has extra step (take batt out of connected atrix then insert again). I guess I'll have to drain it again and do it overnight... gah
wintermute000 said:
Anyone else found a fix to this yet?
I'm now running ICS (turl build) issue is still there.
Steps taken to resolve
- discharge to zero
- charge to max
- wipe stats
still there.
The weird thing is that the actual capacity is fine, it can last all day no worries, just from midday onwards it thinks its 1% so has annoying LED flashing at you, also you have no idea how much batt it actually has.
Edit: I just realised your suggestion above has extra step (take batt out of connected atrix then insert again). I guess I'll have to drain it again and do it overnight... gah
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Click to collapse
Nothing will work i have tried almost every tutorial. Recently i found out the phone is showing the the full capacity of battery only 500 that's why i think we will have to change that with the actual voltage to get a accurate battery indicator.What's ur battery full charge design check if from the root exploler
/sys/devices/platform/cpap_battery/power_supply/battery
My phone uevent is showing this
Powersupply-capacity=5
Powersupply-voltage-now=3836000
Powersupply-temp=260
Powersupply-charge-fill-design=500
Powersupply-charge-counter=1
terminator1983 said:
Nothing will work i have tried almost every tutorial. Recently i found out the phone is showing the the full capacity of battery only 500 that's why i think we will have to change that with the actual voltage to get a accurate battery indicator.What's ur battery full charge design check if from the root exploler
/sys/devices/platform/cpap_battery/power_supply/battery
My phone uevent is showing this
Powersupply-capacity=5
Powersupply-voltage-now=3836000
Powersupply-temp=260
Powersupply-charge-fill-design=500
Powersupply-charge-counter=1
Click to expand...
Click to collapse
I'll try the insert empty bat into already connected phone, charge to 100% remaining off, repeat trick overnight, then report back.
FWIW on my 'good' battery which is 1 year old ROFL it says 1880
not sure how changing it would help though or is even possible?. It must be dynamically reported somehow as my good battery gives me a 'good' stat.
I use battery calibration and it worked, have it
http://bit.ly/Ah732P
I'm guapurrin
the battery is charging calibration if you have to load it to calibrate
wintermute000 said:
FWIW on my 'good' battery which is 1 year old ROFL it says 1880
not sure how changing it would help though or is even possible?. It must be dynamically reported somehow as my good battery gives me a 'good' stat.
Click to expand...
Click to collapse
How much is ur other battery showing.I have tried different ways but was not able to change values.
500 same as you! second drain and calibrate did nothing
Maybe theres a faulty batch of batteries and we both got one
Can people PLEASE stop telling us to calibrate we've BOTH DONE THAT MANY TIMES NOW. The problem is that the capacity of the battery is being reported as 500mah not 1930 or whatever its supposed to be. THe actual running time of the battery is fantastic, just thinks its at 0 all the time lol
/sys/devices/platform/cpap_battery/power_supply/battery
Powersupply-charge-fill-design=500 - should be ~1900mah
Sent from my Sony Tablet S using Tapatalk

[Q] Battery Life Ruined after many custom roms, can't fix it.

I have an att galaxy s3 (d2att) that I got back in March 2013. Over the course of the year I have probably changed my rom about 20-30 times to get the perfect rom. Now my phone's screen time is about 1 hour while just letting it sit with the display on and not running any apps or touching it. Currently running the task650 rom with android 4.4.3. Wiping the battery stats file or running the calibration app does not work. There is no option in my recovery menu under advanced settings to wipe battery stats and a battery calibration app says the battery file does not exist. Sometimes the phone will turn off at about 30% and the reason I believe for that is that the voltage goes down so much. On time I checked it around 35-40% and it was at about 2.5V and then it shut down. When I charge it, it hovers around 3.9-4.3V but when I use it, it starts to go down like crazy. I don't know if I need a new battery or if I should completely factory reset my phone.
Any advice?
mehtam said:
I have an att galaxy s3 (d2att) that I got back in March 2013. Over the course of the year I have probably changed my rom about 20-30 times to get the perfect rom. Now my phone's screen time is about 1 hour while just letting it sit with the display on and not running any apps or touching it. Currently running the task650 rom with android 4.4.3. Wiping the battery stats file or running the calibration app does not work. There is no option in my recovery menu under advanced settings to wipe battery stats and a battery calibration app says the battery file does not exist. Sometimes the phone will turn off at about 30% and the reason I believe for that is that the voltage goes down so much. On time I checked it around 35-40% and it was at about 2.5V and then it shut down. When I charge it, it hovers around 3.9-4.3V but when I use it, it starts to go down like crazy. I don't know if I need a new battery or if I should completely factory reset my phone.
Any advice?
Click to expand...
Click to collapse
A bad battery can be really dangerous. It may have become like this because of bad use or overuse. I would recommend changing it asap
Sent from my SDT-737 using XDA Free mobile app
I don't see how flashing many ROMs could cause your battery life to drop. However the following issues are possible:
1) The ROM you are using has a bug that is causing some type of battery drain. These do happen.
2) You have charged and discharged your battery so many times that it cannot hold a charge anymore. I start noticing battery life decreasing after about 2 years of my usage (generally fairly low). Most times my battery life does not drop below 60% or so. If you very often let it drop very low, I can see the battery life decrease significantly after about a year.
nhakobian said:
I don't see how flashing many ROMs could cause your battery life to drop. However the following issues are possible:
1) The ROM you are using has a bug that is causing some type of battery drain. These do happen.
2) You have charged and discharged your battery so many times that it cannot hold a charge anymore. I start noticing battery life decreasing after about 2 years of my usage (generally fairly low). Most times my battery life does not drop below 60% or so. If you very often let it drop very low, I can see the battery life decrease significantly after about a year.
Click to expand...
Click to collapse
Yea, I can only assume that because I have let it drop so low many times, I might have ruined the cells within. I might just end up buying a new battery. Thanks.

[Q] Battery Issue on Lollipop Roms

Hii everyone
I've got some really weird Battery Issues on different Lollipop Roms (CM12, ResurrectionRemix 5.3.5-5.3.7, Beanstalk and SlimLP).
The problem is, as soon as i restart the phone the battery percentage drops from 50% to 13% for no reason.
If i charge the phone later suddendly the loose percentage are back, but the phone consumption more "battery" so it's sooner at 0% as normal.
Does anybody else faceing this problem? Or whats the solution?
(Tried several times to calibrate the battery, and it's a new one ca. 6 months old)
Regards Kun1
KUN1 said:
Hii everyone
I've got some really weird Battery Issues on different Lollipop Roms (CM12, ResurrectionRemix 5.3.5-5.3.7, Beanstalk and SlimLP).
The problem is, as soon as i restart the phone the battery percentage drops from 50% to 13% for no reason.
If i charge the phone later suddendly the loose percentage are back, but the phone consumption more "battery" so it's sooner at 0% as normal.
Does anybody else faceing this problem? Or whats the solution?
(Tried several times to calibrate the battery, and it's a new one ca. 6 months old)
Regards Kun1
Click to expand...
Click to collapse
I've had these problems when I first bought my phone used off eBay. Phone battery was very erratic. After a reboot battery would be less than half or nearly 0 even with 80%+ battery. Or would shut down with 5% left. Or drain battery a lot quicker than normal.
Soon as I bought a new battery my problems vanished. My battery would stay solid no matter how many times I flashed a new ROM or rebooted. BUT after 3 months these drops have started to happen again with reboots. Not always like before, but they're happening.
I think it's down to battery conditioning. The way you charge and discharge your battery. There are set ways to charge a phone to maintain battery health.
How does your battery react without rebooting from a full change to shut down? You shouldn't need to reboot a phone with a good stable ROM once you've set it up the way you like it. Also calibrating you battery or wiping your fuel gauge meter to often isn't good practice as android and your phone will do calibrating itself after some time and needs the information that these starts provide.
Battery jumps seem to happen with a lot of S2 users. Maybe a flaw in the design of phone. But good battery practices are important, things like not leaving your phone charging overnight. Batteries don't like being left on charge when they are full. There's more info out there on XDA that I can't remember myself as I am guilty of bad battery practices as I use my phone all the time and don't have time to full charge cycle.
Yes same problem
Battery drains really fast when restarting
Any fix for this?
I am hiving battery problems too. Battery is dropping % like it leaking or sth. Last time my phone rebooted due to full ram and it dropped from 50% to 12%. I left it like that. After some time battery re-charged itself from 12 to 23 % ! Phone was lying on the sofa without connected charger ! Should i clen fuel guage chip or my battery is EOL ?
Wysłane z Cyano-fonika 12 beta ...
RuffBuster said:
How does your battery react without rebooting from a full change to shut down? You shouldn't need to reboot a phone with a good stable ROM once you've set it up the way you like it. Also calibrating you battery or wiping your fuel gauge meter to often isn't good practice as android and your phone will do calibrating itself after some time and needs the information that these starts provide.
Battery jumps seem to happen with a lot of S2 users. Maybe a flaw in the design of phone. But good battery practices are important, things like not leaving your phone charging overnight. Batteries don't like being left on charge when they are full. There's more info out there on XDA that I can't remember myself as I am guilty of bad battery practices as I use my phone all the time and don't have time to full charge cycle.
Click to expand...
Click to collapse
you have to reboot for example if you install xposed and new modules i've calibrated the battery just 3 times i think this isnt too much?
and i understand the problem with charging overnight but there's no other solution for me :/
I have the same problem of battery drain with SlimLP beta 5, here my screenshot: shoplc.altervista.org/gallery/
LpWeb said:
I have the same problem of battery drain with SlimLP beta 5, here my screenshot: shoplc.altervista.org/gallery/
Click to expand...
Click to collapse
Which kernel do you use? and have you installed Xposed?
KUN1 said:
Which kernel do you use? and have you installed Xposed?
Click to expand...
Click to collapse
Hi, I have the original kernel from ROM, Xposed do not have installed
LpWeb said:
Hi, I have the original kernel from ROM, Xposed do not have installed
Click to expand...
Click to collapse
Because i have the same setting at the moment and no problem and tried with two diffrent batteries....
Also when i see your screenshots and don't see anything special or whats wrong with your battery.
Here is my battery...
KUN1 said:
Because i have the same setting at the moment and no problem and tried with two diffrent batteries....
Also when i see your screenshots and don't see anything special or whats wrong with your battery.
Here is my battery...
Click to expand...
Click to collapse
Hello, your situation is much more serious than mine. I reinstalled the original ROM jelly beam 4.1.2 because I can not charge the smartphone every 5 hours.
LpWeb said:
Hello, your situation is much more serious than mine. I reinstalled the original ROM jelly beam 4.1.2 because I can not charge the smartphone every 5 hours.
Click to expand...
Click to collapse
Did that help?
KUN1 said:
Did that help?
Click to expand...
Click to collapse
...of course, now my battery lasts 15-18 hours
When it developed a ROM that overcomes these problems of battery life, I'll be happy to try it.
LpWeb said:
...of course, now my battery lasts 15-18 hours
When it developed a ROM that overcomes these problems of battery life, I'll be happy to try it.
Click to expand...
Click to collapse
Which Rom do you use? and how much display time do you get within this 15-18hours?
KUN1 said:
Which Rom do you use? and how much display time do you get within this 15-18hours?
Click to expand...
Click to collapse
ROM Stock 4.1.2 build XWLSW.
2 hours display, 54 minutes call, 15 msg whatsapp, 30 msg telegram, 2 record videos 720p, 6 photo, 18 email and 30 minutes of twitter, this is a my typical day of use my phone.
ps: I may have missed something
Forgot to say, if you want to avoid battery drops when rebooting make sure you plug your phone into charge before rebooting. Thus should stop battery dropping afterwards.
RuffBuster said:
Forgot to say, if you want to avoid battery drops when rebooting make sure you plug your phone into charge before rebooting. Thus should stop battery dropping afterwards.
Click to expand...
Click to collapse
The battery often drops when the phone hangs at work and reboot from itself so i have no chance to plug it in.
I have same problem, battery drain too fast & after reboot same time battery level is "falling" at one moment twice. At first, I think it's a battery problem, but battery work fine at CM12 mod, and have problem at SLIMLP 5.1.1 mod. When battery "falling" it's not heating, which means no real discharge.
Hello friends I just purchased a new battery this is 3.7V battery
But the old Samsung stock battery that comes with the phone is 4.2V is this ok or this is necessary to need battery is 4.2V im still useing jellybean stock os 4.1.2 but im a custom Rom Flashaholic please guide me should I need a same battery volt so I return it and find another I purchased it from amazon estore thanks for replying

Battery - Very weird behaviour

After my stock battery started dying and not holding the charge anymore I bought two new aftermarket batteries (2300mAh) everything went fantastic for some time, then from one day to the other the battery I use daily started draining crazy (even 2% at time) I tried a lot of roms with no luck. Bad battery you say, here is the weird fact, the other battery which used maximum 4-5 times at month keeping it at half-charge, has the EXACT same drain that the other has. Is it possibile that something in the phone has gone nuts and is indicating wrong values? I also ran a full charge-discharge cycle preventing the low battery shutdown through xposed, and it shutdown some minutes after hitting 0%, at full charge indicates 4.300mV is it correct, isn't it?
Also using the *#0228# code (I can't recall now if it's correct) the charge level drops a lot like 30-50% and I noticed that the phone later stays at that % for quite a bit and also the heat from the battery draining stops and the phone stays very cool also while gaming, until it starts draining again
No one?
You can look at the simple battery-statistics in setting to find abnormal consumption by an app.
Otherwise buy a battery from Samsung's e-store: I bought several 'original' batteries (not for S3) from Amazon and mentioned too early wear after 1/2 year.
Replacement batteries are a waste of money. I had 2. 1 bloated and the other dies in a few minutes. Upgraded my phone instead.
I wish I stole my HTC M9.

How to drain battery fast with flashing script in TWRP

hi there,
as the title says,
what i wanted to do is to drain my battery to complete zero.
my phone will die suddenly when the battery indicator shows 40%-50%.
so i think a way to fix this is to drain battery completely and charge it back up again from 0%(or at least 1%).
the battery problem happened when i moved to custom rom.
cant do the strong vibration, high acc gps, max brightness since when the battery reaches ~50%, my phone will shut down immediately.
so, is there a way to drain battery?
thanks
How to fix Xiaomi Redmi Note 3 (kenzo/kate) battery problems on Custom ROMs
Hi @dewasa98, I had these battery problems too when I switched to a custom ROM (LineageOS) some year ago. my phone was already about two years old though. the phone would shutdown at 25% or sometimes 50% of battery. it also had a weird behavior while charging, it would start charging at 25% while it has just shutdown...
I replaced my battery, and all these problems were gone! The phone feels as if it were new
My advice for you is to get a new battery and replace it yourself. it's very easy and straightforward on RM N3. Watch a video before you do it, and everything will be fine. This will extend the life of you phone two more years at least :good:
The battery reference for Redmi Note 3 is: BM46, in case you want to get a new one.
Hey OP, did you ever find a TWRP script to drain battery? That's what I'm currently looking for.

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