Idle battery drain , would flashing help?


Justhavocman

Members
Aug 13, 2019
5
5
Hello everyone , i bought a redmi note 7 a couple of days ago and the first thing i noticed was that the battery is draining insanely fast when on standby\idle when compared to my note 4 , i have done everything i can ( removed apps , disabled background apps , battery optimization etc) in my power to combat that but nothing seems to work , even having battery saver turned on doesn't do much , i am using the global rom , would flashing to the european rom fix this? Thanks in advance.
 

iamme729

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Nov 22, 2015
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Can you look at " about phone " check to ROM version you are running ? A new phone with excessive battery drain is historically caused by a fake ROM ...If that's the case then " yes" flashing Xiaomi EU ROM should fix it ...Flashing EU ROM " might" fix it even if the ROM is legit ...

Sent from my MI 8 Lite using Tapatalk
 

atreju (kris)

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Aug 13, 2019
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5
Check your battery stats, I faced Services Google Play huge drain, it was a google app fault.
Last update from the google play store fixed my draining issue
 
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AdRem

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Jun 17, 2019
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I have a redmi note 7 also a few months old now I am running Xiaomi.eu 10.3.2 stable, (PFGCNXM) and I have never had the problem with battery drain at all.
as a matter of fact with avg. use my battery last for 4 or 5 days.
I do have an app that automatically switches on airplane mode at night so that also really reduces power consumption.
I would recommend flashing the latest stable ROM... good luck, hope it all works out.
 

atreju (kris)

Members
Aug 13, 2019
10
5
I have a redmi note 7 also a few months old now I am running Xiaomi.eu 10.3.2 stable, (PFGCNXM) and I have never had the problem with battery drain at all.
as a matter of fact with avg. use my battery last for 4 or 5 days.
I do have an app that automatically switches on airplane mode at night so that also really reduces power consumption.
I would recommend flashing the latest stable ROM... good luck, hope it all works out.
Did you try 10.3.3 stable cause I faced the draining issue with this rom
 

AdRem

Members
Jun 17, 2019
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5
Did you try 10.3.3 stable cause I faced the draining issue with this rom
No, I stuck with 10.3.2 so far. I read the changelog and no big changes so I didn't update.
Over all of the years I have found out that sometimes updates can be disastrous and since I saw no need and my phone is running perfectly fine I am going to leave it as it is.
I also don't update apps unless I really must so the other remark - above - about the latest update from Google Play services might be causing an issue.
You can probably uninstall that update by going to the app info and hitting uninstall and it will go back to an older version but that's not always possible.
Also finding a good battery analyzer will show you which app or services are actually using most of your battery..
 

Justhavocman

Members
Aug 13, 2019
5
5
Can you look at " about phone " check to ROM version you are running ? A new phone with excessive battery drain is historically caused by a fake ROM ...If that's the case then " yes" flashing Xiaomi EU ROM should fix it ...Flashing EU ROM " might" fix it even if the ROM is legit ...

Sent from my MI 8 Lite using Tapatalk
Ok so here's my rom version and my battery usage both hardware and software , mind you my phone charged to 100% at 20:00 and now it's 22:43 and i'm already down to 10% , is this justifiable? ( everything's turned off , background apps , location , google assistant etc). I don't know if this is important but my phone didn't have the sim removal tool in the case , it was shrink wrapped and all , maybe i got a re-used faulty one from a shady retailer?
 
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AdRem

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Jun 17, 2019
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Ok so here's my rom version and my battery usage both hardware and software , mind you my phone charged to 100% at 20:00 and now it's 22:43 and i'm already down to 10% , is this justifiable? ( everything's turned off , background apps , location , google assistant etc).
No of course it's absolutely not normal that your phone uses 90% of its power in less than 3 hours so you either have a hardware problem or something bizarre is going on..
at that rate your phone would probably be getting hot just from the battery drain. Can you feel it getting warm at the back?
I wonder if this is a case for warranty? I would contact Xiaomi.
As a reference; with your screen on constantly and using the phone you should still get 8 to 12 hours of usage time.

Perhaps you meant it has used 10% in less than 3 hours? If that's the case that would still be extremely high battery consumption..
my phone can lie around all day on the table with everything on including Google assistant and what have you not. And it will use maybe 2 or 3%.
Hope this is helpful but perhaps you might want to consider flashing another rom?
(10.3.2. Is working great for me)
 

Justhavocman

Members
Aug 13, 2019
5
5
No of course it's absolutely not normal that your phone uses 90% of its power in less than 3 hours so you either have a hardware problem or something bizarre is going on..
at that rate your phone would probably be getting hot just from the battery drain. Can you feel it getting warm at the back?
I wonder if this is a case for warranty? I would contact Xiaomi.
As a reference; with your screen on constantly and using the phone you should still get 8 to 12 hours of usage time.

Perhaps you meant it has used 10% in less than 3 hours? If that's the case that would still be extremely high battery consumption..
my phone can lie around all day on the table with everything on including Google assistant and what have you not. And it will use maybe 2 or 3%.
Hope this is helpful but perhaps you might want to consider flashing another rom?
(10.3.2. Is working great for me)
Sorry about that , was a bit absent minded when typing that sentence , yeah it's down 10% , not down TO 10% , in 3 hours , now it's down to 87% just laying there on standby , i legit have had the screen on for around 5 mins this whole time , is this normal? Do i have to return the phone?
 

AdRem

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Jun 17, 2019
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Sorry about that , was a bit absent minded when typing that sentence , yeah it's down 10% , not down TO 10% , in 3 hours , now it's down to 87% just laying there on standby , i legit have had the screen on for around 5 mins this whole time , is this normal? Do i have to return the phone?
Yes I already understood that :}
I would definitely recommend installing the following app which is a good battery monitor and shows you exactly where your power is going. I have used it and it works well
GSAM battery monitor

Have you already unlocked your bootloader and rooted your phone? If you have I think your warranty is void already anyway
because you have flashed a new ROM?

Go and use that battery monitor and see what happens in the next couple of days and where your power is going, after that I would say perhaps consider flashing another rom.

It's all just a matter of eliminating everything till you find what is causing the problem
 
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Justhavocman

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Aug 13, 2019
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Yes I already understood that :}
I would definitely recommend installing the following app which is a good battery monitor and shows you exactly where your power is going. I have used it and it works well
GSAM battery monitor

Have you already unlocked your bootloader and rooted your phone? If you have I think your warranty is void already anyway
because you have flashed a new ROM?

Go and use that battery monitor and see what happens in the next couple of days and where your power is going, after that I would say perhaps consider flashing another rom.

It's all just a matter of eliminating everything till you find what is causing the problem
Thanks , i will let the phone drain completely and charge it up again with the app running to check what's draining my battery , no i haven't unlocked the bootloader so i'm still under warranty and within the 14 day return period.
 

Justhavocman

Members
Aug 13, 2019
5
5
Yes I already understood that :}
I would definitely recommend installing the following app which is a good battery monitor and shows you exactly where your power is going. I have used it and it works well
GSAM battery monitor

Have you already unlocked your bootloader and rooted your phone? If you have I think your warranty is void already anyway
because you have flashed a new ROM?

Go and use that battery monitor and see what happens in the next couple of days and where your power is going, after that I would say perhaps consider flashing another rom.

It's all just a matter of eliminating everything till you find what is causing the problem
Just an update , after wasting the good part of two days , testing\messing with settings\apps and whatnot and after two factory resets i've come to the conclusion that it's either a faulty phone or a faulty battery , i'm on my second factory reset and with literally no apps installed the battery drained 3% from the time it booted up for the first time till it got done finishing up with the set-up. I'm returning it first thing on Monday. Thank you all for your help thus far!
 
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AdRem

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Jun 17, 2019
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Just an update , after wasting the good part of two days , testing\messing with settings\apps and whatnot and after two factory resets i've come to the conclusion that it's either a faulty phone or a faulty battery , i'm on my second factory reset and with literally no apps installed the battery drained 3% from the time it booted up for the first time till it got done finishing up with the set-up. I'm returning it first thing on Monday. Thank you all for your help thus far!
To be fair booting up after factory reset can take some power because it's updating lots of apps..
but again for example I had my phone on 100% last night after charging and when I woke up this morning about 12 hours later after charging, it was on 99%.
That should be the kind of performance you're getting and clearly you are not so yeah I would go ahead and take it in for warranty claim. I would appreciate an update what happens. Thank you