Mi8 Battery drain - Xiaomi Mi 8 Questions & Answers

Hey guys, I'm on global beta 8.12.20 and the last days I notice a big drainage on standby. when I first flashed the global beta from global stable the battery performance was excellent. I got about 2 more hours sot than on stable, around 6-7 hours total. And the standby drain was minimal. Also every time I boot my device I choose lte/wcdma from the dialer menu (*#*#4636#*#*) which I noticed made a difference until now. Also system drainage seems a little high.

lioutasrom said:
Hey guys, I'm on global beta 8.12.20 and the last days I notice a big drainage on standby. when I first flashed the global beta from global stable the battery performance was excellent. I got about 2 more hours sot than on stable, around 6-7 hours total. And the standby drain was minimal. Also every time I boot my device I choose lte/wcdma from the dialer menu (*#*#4636#*#*) which I noticed made a difference until now. Also system drainage seems a little high.
Click to expand...
Click to collapse
Some more screenshots.

You've got terrible reception, just look at the 2nd Screenshot. It's also happening in the exact time period where you drain was peaking.
Maybe switch back to default network mode or lte / umts (prl) but I don't think that'll help in this case

Stoffl_ said:
You've got terrible reception, just look at the 2nd Screenshot. It's also happening in theaters exact time period where you drain was peaking.
Maybe switch back to default network mode or lte / umts (prl) but I don't think that'll help in this case
Click to expand...
Click to collapse
It makes sense since I was at a studio for a couple of hours with almost no reception, but what can I do to save battery when out of service? Because I'm usually in this situation 4-5 days a week for many hours each time. Maybe use airplane mode every time I'm at the studio?

Yeah, airplane mode and then switch wifi back on - assuming there's any.

Related

Battery life on MIUI 12 (EU)

Typically if I take my phone off charge around 8am and don't use it, I still have 94% or more battery left by lunchtime.
Updated it to MIUI 12 last night, today I took it off charge around the same time, right now it's 1pm and I have 61% battery left.
That's a horrendous change. If I was using it I don't think I could see a full day out now.
This is a vanilla Mi 9 on stock everything, never fiddled with.
Anyone similar experience yet?
Miui 12 has the worst battery life, sot and usage time i have ever seen. I tried the beta for about 4 weeks, stable just a few days but its the same. Xiaomi should never published this as "stable". A lot of users had those problems with beta for weeks and reported it but nothing changed.
I switched back to miui 11 just for not killing my battery within months.
Edit: testing 12.0.2 and it looks like they solved the battery drain bug with this update
I'm on Xiaomi.eu Rom (latest stable MiUI12). Battery life is nearly the same as MiUI11.
MiUI11 end of the day: ~30-35% remaining tipically
MiUI12 end of the day: ~20-30% remaining
So for me this is not bad for the first MiUI12 builds. First MiUI11 builds were more worse for me...
The worst battery drain I have ever experienced. Its good on standby, through the night goes down by 1% but during the day I lost 70% using google maps and data for an hour. With miui 11 I would have used maybe 20 max. im gonna root my mi9 and go back to 11 cause I dont think xiaomi is going to fix it any time soon
I've seen it so many times before... Once the phone is not the top flagship in OEM portfolio they don't care about the quality of the update. I don't think it's ever going to be fixed. Get used to it or go Custom ROM
Happens only on the first day of upgrade from MIUI 11. The next days are even better. It's easy to pass full day (normally I got around 1.25) with around 5-6H SoT.
leledumbo said:
Happens only on the first day of upgrade from MIUI 11. The next days are even better. It's easy to pass full day (normally I got around 1.25) with around 5-6H SoT.
Click to expand...
Click to collapse
For me it's just impossible. It's easy for me to get high SOT when I watch something with screen on all the time but it looks like phone have a hard time getting into deep sleep mode so it hurts standby time.
Weird. We all have different problems. My mi9 goes into deep sleep without any problems. I can also get 6h screen time but when I use data baterry goes really really fast. I can easily go from 100% to 10% in 3h using only google maps :/
Yeah battery drain on miui 12.0.2 is awful. my android system usage stats is about 43% right now? and they also remove Override Force Dark Mode option from developer options which was so usefull for me? we probably haven't need IOS notification style!

Battery friendly ROM

I'm using xiaomi.eu 12.0.5 QFACXNM and the battery drain is brutal: 11% battery drain at night in 9 hours without touching the phone. No airplane mode, but wifi and data off.
I restricted almost all apps at background and problem is not solved. I'm doing 3h SOT or even less at day.
So... what's the rom with the BEST battery and the best SOT? I don't mind the other features, if it's AOSP I appreciate if I can install ANX camera and GCAM (both).
Thanks.
pavoleo said:
I'm using xiaomi.eu 12.0.5 QFACXNM and the battery drain is brutal: 11% battery drain at night in 9 hours without touching the phone. No airplane mode, but wifi and data off.
I restricted almost all apps at background and problem is not solved. I'm doing 3h SOT or even less at day.
So... what's the rom with the BEST battery and the best SOT? I don't mind the other features, if it's AOSP I appreciate if I can install ANX camera and GCAM (both).
Thanks.
Click to expand...
Click to collapse
I had very good battery results with PixelExperience - around total 40h with 3h screen on time (yeah not heavy usage). Right now I'm trying PA Q5
xikz said:
I had very good battery results with PixelExperience - around total 40h with 3h screen on time (yeah not heavy usage). Right now I'm trying PA Q5
Click to expand...
Click to collapse
3h SOT is not a good result, don't you think? I was expecting something like 5h or 6h of SOT with a normal use... I know with 3300mah battery it's complicated but I don't use my phone with heavy apps, I don't play, only use instagram, photos, twitter, whatsapp/telegram and stuff like that...
I recommend PA.
pavoleo said:
3h SOT is not a good result, don't you think? I was expecting something like 5h or 6h of SOT with a normal use... I know with 3300mah battery it's complicated but I don't use my phone with heavy apps, I don't play, only use instagram, photos, twitter, whatsapp/telegram and stuff like that...
Click to expand...
Click to collapse
for a 40h+ total with bluetooth location and wifi always on I'd say it's a very good result
I'll check both. I fully charged my phone this morning. 7 hours later, without any use (check my instagram and twitter couple of times and responding some whatsapps), it dropped 10% (to 90%).. At least six and a half hours were in deep sleep.
I think this isn't normal.
That also can be a signal for a dying battery as well. Approx. 1 % per hour in combined usage is a good average for AOSP ROMs. At moderate use, similar to your profile, the battery here last for four days with 4 h SoT. 8 h SoT over two days is possible but not what I reach often. Mi9 is running PAQ5.
Cheers
Toscha
toscha42 said:
That also can be a signal for a dying battery as well. Approx. 1 % per hour in combined usage is a good average for AOSP ROMs. At moderate use, similar to your profile, the battery here last for four days with 4 h SoT. 8 h SoT over two days is possible but not what I reach often. Mi9 is running PAQ5.
Cheers
Toscha
Click to expand...
Click to collapse
I was thinking the same. At this hour, less than 12h after the last full charge, and with no use at all cause I'm currently working at home, so I use computer (like I said, watch a couple of times instagram, reply to a few whatsapps and check twitter a little) battery is at 80%, with 30 minutes of SOT. Something is wrong, and maybe you're right about battery.
I'll try PAQ5 and crdroid with quantic kernel... despite I like MIUI, but xiaomi.eu is an extreme battery-draining rom...
My Mi 9 is running several AOSP ROMs since more than one year. Since then I've simply no idea about Miui and its battery consumption. Tbh I'm not too much interested in battery life at all. I'm not an outdoor guy having access to a power plug only once in a while. I'm living in an area where power plugs are widely available. So running out of power is not a major threat to me.
Cheers
Toscha
toscha42 said:
My Mi 9 is running several AOSP ROMs since more than one year. Since then I've simply no idea about Miui and its battery consumption. Tbh I'm not too much interested in battery life at all. I'm not an outdoor guy having access to a power plug only once in a while. I'm living in an area where power plugs are widely available. So running out of power is not a major threat to me.
Cheers
Toscha
Click to expand...
Click to collapse
I usually have a charger near, but it happened to me that, in a long session of photos, or in a heavy use outside my home or my work, battery dies more sooner than later... and that sucks.
For example, watching forums or instagram, it consume 1% each 5-7 min, and more of that, instagram and web loading are not so fluent as it should be, so... I'm gonna try aosp for a while.
Crdroid, Paranoid and Iodé OS seem the best choices, I'll give a try to the best battery-saver rom...
Changing ROM only might not solve your battery problem, if the problem lies elsewhere. I use the same ROM and I could get 4-6 hours SoT per charge, over a day of use or so. This is a 1 year old device so battery is no longer 100%. If yours is newer but you get worse result than mine, then it's something in your configuration, not the ROM.
Sure, in these cases I usually carry a power bank with me. Actually I can't recall when last time my phone totally went off power.
For the AOSP ROMs I can't tell about battery behaviour. Things like SafetyNet, banking app and G-Pay are so much more important to me that I never considered changing the ROM since PAQ5 does simply everything I need.
Cheers
Toscha
Read this: https://forum.xda-developers.com/Mi...ttery-life-t4123079/post82968297#post82968297
this phone has some hardware issue with the battery, some chip is not properly registering/measuring. You have to "reset".
I have more than 8h screen on time 0~100, and I have the phone 15 months.
.eu miui 12
pavoleo said:
I'm using xiaomi.eu 12.0.5 QFACXNM and the battery drain is brutal: 11% battery drain at night in 9 hours without touching the phone. No airplane mode, but wifi and data off.
I restricted almost all apps at background and problem is not solved. I'm doing 3h SOT or even less at day.
So... what's the rom with the BEST battery and the best SOT? I don't mind the other features, if it's AOSP I appreciate if I can install ANX camera and GCAM (both).
Thanks.
Click to expand...
Click to collapse
I got same problems with you and in my case. I found out that my mobile signal was not stable, then phone auto switch network try to find 4g -3g -2g and it happened couple of times. When I' back to my hometown, battery is only down 2%.
leledumbo said:
Changing ROM only might not solve your battery problem, if the problem lies elsewhere. I use the same ROM and I could get 4-6 hours SoT per charge, over a day of use or so. This is a 1 year old device so battery is no longer 100%. If yours is newer but you get worse result than mine, then it's something in your configuration, not the ROM.
Click to expand...
Click to collapse
I was thinking the same, battery duration is ridiculous. Last night, 1% battery per- 5-6-7 mins using kiwi browser/instagram. And 10% battery out last night with wifi and data deactivated. Now I have 56% battery with very few use of the phone. Charged it 24h ago.
toscha42 said:
Sure, in these cases I usually carry a power bank with me. Actually I can't recall when last time my phone totally went off power.
For the AOSP ROMs I can't tell about battery behaviour. Things like SafetyNet, banking app and G-Pay are so much more important to me that I never considered changing the ROM since PAQ5 does simply everything I need.
Cheers
Toscha
Click to expand...
Click to collapse
I don't have a powerbank, I think I should buy one... Like I said, I still have problems with Internet, instagram stories and some webpages load slowly even with WIFI, so maybe it's a ROM problem...
onolox said:
Read this: https://forum.xda-developers.com/Mi...ttery-life-t4123079/post82968297#post82968297
this phone has some hardware issue with the battery, some chip is not properly registering/measuring. You have to "reset".
I have more than 8h screen on time 0~100, and I have the phone 15 months.
.eu miui 12
Click to expand...
Click to collapse
Thank you so much, I'll try to follow that guide.
cepheus002 said:
I got same problems with you and in my case. I found out that my mobile signal was not stable, then phone auto switch network try to find 4g -3g -2g and it happened couple of times. When I' back to my hometown, battery is only down 2%.
Click to expand...
Click to collapse
I live in a great city and and I haven't gotten out of it since the pandemic started, so I don't think that's the problem...
I have miui 11 .eu rom, I have a post explaining how to get 8:30h sot
Your problem is xiaomi crap that are draining your battery and making the phone not measure it correctly.
Xiaomi programmed obsolescence on battery
H, since I updated from miui 10 to miui 11 and even now that I have miui 12 I have noticed that the battery doesn't last as long as before. I state that since I purchased the phone (July 2019) I have always charged the battery in the best way...
forum.xda-developers.com
onolox said:
I have miui 11 .eu rom, I have a post explaining how to get 8:30h sot
Your problem is xiaomi crap that are draining your battery and making the phone not measure it correctly.
Xiaomi programmed obsolescence on battery
H, since I updated from miui 10 to miui 11 and even now that I have miui 12 I have noticed that the battery doesn't last as long as before. I state that since I purchased the phone (July 2019) I have always charged the battery in the best way...
forum.xda-developers.com
Click to expand...
Click to collapse
Hello im using miui 11.0.6 with a new battery and i get 4:14 on SoT, what version of miui do you use?
I on my xiaomi mi9 I installed the battery increased by 4000mha, I changed the kernel values with a file manager by making the phone read the same battery capacity and I do six hours of display on! To do this you must have root permissions and buy 4000mha battery ...
the path to take with franco kernel manager is:
/sys/class/power_supply/bms/charge_full"
/sys/class/power_supply/battery/charge_ful
Through a file manager, that is the path to follow to edit the file

Question Cell standby high usage and update problem

Hi,
For a few days Cell standby has been using quite a lot of battery even though. It started when I got VoLTE and VoWIFI, but I turned them off because of the high battery usage from cell standby. No change, it's still high (around 20% in a day).
Also when I check for updates, it says "no updates available", even though a week ago I had some notifications regarding a system update, but when I tapped there was no update. I'm on 11.5.1.0 global version.
Does anyone have any idea? It's such a waste to have a big battery and to get only 3 hours screen on time all day long.
Thanks!
Raito Wolf said:
Hi,
For a few days Cell standby has been using quite a lot of battery even though. It started when I got VoLTE and VoWIFI, but I turned them off because of the high battery usage from cell standby. No change, it's still high (around 20% in a day).
Also when I check for updates, it says "no updates available", even though a week ago I had some notifications regarding a system update, but when I tapped there was no update. I'm on 11.5.1.0 global version.
Does anyone have any idea? It's such a waste to have a big battery and to get only 3 hours screen on time all day long.
Thanks!
Click to expand...
Click to collapse
I would do a factory reset and miui firmware update or flash a custom rom eg coltos

Question Improving battery life

Help everybody,
I've bought the phone 3 days ago. Battery life is very bad, getting around 3 hrs SOT using Spotify, Facebook, Reddit and Instagram. Mobile data is always on, Bluetooth was on for 2 hours
Is there any way to improve battery life?
Hesselberg said:
Help everybody,
I've bought the phone 3 days ago. Battery life is very bad, getting around 3 hrs SOT using Spotify, Facebook, Reddit and Instagram. Mobile data is always on, Bluetooth was on for 2 hours
Is there any way to improve battery life?
Click to expand...
Click to collapse
Are you using the recent updates, including .56?
Blumi511 said:
Are you using the recent updates, including .56?
Click to expand...
Click to collapse
Using .46 rn
Hesselberg said:
Using .46 rn
Click to expand...
Click to collapse
Ne Firmware should make things even better
I would try recalibrating the battery, I have found that it lasts very long after hitting 1%, and others have also found that the phone continues charging for a bit after hitting 100% (even with the LED being green). So completely drain the phone, let it charge to 100% and when it hits 100%, give it like half an hour more.
Also, disabling 5G in the Network settings should help. If you are underground (with bad cell signal), I would suggest you enable Airplane mode and then enable Wifi. This will prevent the phone from constantly searching for a better cell signal. Doing this helped me reduce idle drain.
Last night with a few videos + today, I got a total of 3h40 at 120hz durable mode (Charge limit to 90% and the phone is still at 15% battery left).
Blumi511 said:
Ne Firmware should make things even better
Click to expand...
Click to collapse
Can you send link to 56 please? I can't find it
Adaoh said:
I would try recalibrating the battery, I have found that it lasts very long after hitting 1%, and others have also found that the phone continues charging for a bit after hitting 100% (even with the LED being green). So completely drain the phone, let it charge to 100% and when it hits 100%, give it like half an hour more.
Also, disabling 5G in the Network settings should help. If you are underground (with bad cell signal), I would suggest you enable Airplane mode and then enable Wifi. This will prevent the phone from constantly searching for a better cell signal. Doing this helped me reduce idle drain.
Last night with a few videos + today, I got a total of 3h40 at 120hz durable mode (Charge limit to 90% and the phone is still at 15% battery left).
Click to expand...
Click to collapse
I'll try it. Thanks
Hesselberg said:
Can you send link to 56 please? I can't find it
Click to expand...
Click to collapse
I got it via OTA.
Also you probably need to set up other (was tired yesterday evening):
dynamic mode
5g off
90 Hz Display (I don't really see the difference between 90/120)
Wifi, BT, location always on
I get around 7 h of SOT fully charged and 5 hours brings me from bed to bed.
Yeah 5g off makes a lot of difference to me. I also use Naptime.
I see a big change with location off. Just put it on qith quick toggle when needed. The standby is much much better with just this change for me. I have 5G because my plan doesn't allow it either way.
As others said, it's about 5-6 SoT, normal use on its stock Asus Android OS.
After installing LineageOS on now I got 8+ SoT.
Due to the clean LineageOS, 60Hz screen refreah rate, battery saver always on, no google spying services installed, 100% google free,no blotware, no whatsapp no facebook...
Phone now lasts me comfortably a full day of work (sometimes day and half).
I use it for work not as my playstation.
I'm super happy.
Btw, your post is duplicate with other post, That post has other feedbacks that may help you, better to stick to that post.

Question VoLTE battery drain on GT2?

Hey, I noticed on my new GT2 poor standby time, somewhere I read that it might be caused by VoLTE is this possible?
Try using settings > battery > advanced settings > app quick freeze and select apps that you don't neet to run in background.
I did that but I continue having battery drain, only 3-4h of display time.
Well I have to check this tomorrow but it seems that VoLTE is a problem for me.
might not help you too much
but for me, with VOLTE turned on the SOT is pretty good
like 7+
In my case, with VOLTE off and all apps with quick freeze I have less than 4h of SoT, what I can do?
PD: screen at 120Hz, of course.
i mean its super hard to give any recommendation
it really depends on the apps you are using
if you are gaming with 4h SOT it drains much more than if you are just browsing
take a look at what drains your battery and try to optimize there
I have Wifi on and only use the phone for emails, web, whats and calls. Never playing or heavy tasks.
also if your signal strength is not optimal it burns a lot of battery
if you are having 5g enabled but no 5g contract or 5g in your area, disabling 5g is also saving something because the phone stops to constantly search for 5g
For me - on 4g network, with VoLTE off is better - screen 120 Hz. I also switched off those options to report customer experience.
qvert said:
also if your signal strength is not optimal it burns a lot of battery
if you are having 5g enabled but no 5g contract or 5g in your area, disabling 5g is also saving something because the phone stops to constantly search for 5g
Click to expand...
Click to collapse
I have signal off, only wifi and 5g off.
It is much better - for me without volte option ON (I read somewhere in review of different phone that snap 888 dont like volte sometimes maybe it is also firmware related problem ) - 4 h SOT and still 55% battery , mixed network 1/3 wifi + 2/3 4G . With gps off .
sebx_g1 said:
It is much better - for me without volte option ON (I read somewhere in review of different phone that snap 888 dont like volte sometimes maybe it is also firmware related problem ) - 4 h SOT and still 55% battery , mixed network 1/3 wifi + 2/3 4G . With gps off .
Click to expand...
Click to collapse
At 120hz?
neo_bpm said:
At 120hz?
Click to expand...
Click to collapse
yes + auto brightness + AOD on (black theme)
Then I have battery drain problem, how I can fix it?
Please understand that SOT will never be the same between uses. And should never be compared between users, we all do things differently with our phones. And, also, if anyone mentions his SOT please mention the total usage time, like I have 2days usage, 3h SOT, 30%battery remaining, and this are generally good. You can't have 6h SOT and 2days usage, but you can have 6h sot with 10h total usage and 0% battery remaining! And post screenshots that sustain your affirmations.
wizard8400 said:
Please understand that SOT will never be the same between uses. And should never be compared between users, we all do things differently with our phones. And, also, if anyone mentions his SOT please mention the total usage time, like I have 2days usage, 3h SOT, 30%battery remaining, and this are generally good. You can't have 6h SOT and 2days usage, but you can have 6h sot with 10h total usage and 0% battery remaining! And post screenshots that sustain your affirmations.
Click to expand...
Click to collapse
Man, yesterday I got 1h 10min of SoT with 9h of phone use at 50% of battery, as I said, I only use the phone for emails, web, whats and one call of 4min, always with WiFi. Its evident I have a battery drain problem, indeed, in idle the consumes batery all the time, my old realme X2 had better battery administration 3 years after I buyed it.
I cheeked all the permisions and syncronitzations and is all ok, maybe the only solution is a hard reset...
My data from last day with VoLTE on my phone needed charger about 7pm without VoLTE about 11pm.
After few days I confirm on firmware A14 - VoLTE eats batter like crazy :/ - how to report that to Realme - their forum don't look good at all :/
Try emailing: [email protected] I've sent them emails about some issues, got some replies but didn't solve anything... Try your luck )

Categories

Resources