Battery drain using always-on Ambient display - Redmi K20 / Xiaomi Mi 9T Questions & Answers

Hi all,
I recently bought this phone. I am curious if it is a good idea to use the always-on display ("Ambient display") on my K20.
In your experience, how much battery does it consume? Based on that I can decide if I'll use it.
Thanks!

With always on the batter of my phone lasts almost two days!

About 10% from 07 to 23h.

Doesn't matter for me
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Related

Battery life is awesome!

I was playing Asphalt 8 and uploading over 300 photos to google drive over WiFi and I have to say that I'm amazed by both battery life and multitasking capabilities this phone have. It got really warm and I though that battery has run dry, but...
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It was charged to 93% when I unplugged it.
Wysłane z mojego C6903 przy użyciu Tapatalka
It is pretty good, it get about 12 hours of heavy use. That's with wifi, but, nfc on all the time :good:
Have anyone had this problem: sometimes battery go down 2-3% per time, not one by one %. and if I set the brightness 65% auto, I have around 5h on-screen when battery 10%, is that ok? that decrease problem is normal or not? please help me.
hieuhd93 said:
Have anyone had this problem: sometimes battery go down 2-3% per time, not one by one %. and if I set the brightness 65% auto, I have around 5h on-screen when battery 10%, is that ok? that decrease problem is normal or not? please help me.
Click to expand...
Click to collapse
A bit hard to interpret what exactly you're trying to say, but when you have the brightness set on auto, it will tend to drain battery life more quickly as the device will keep trying to see if it should lower the brightness or not.
kusanou said:
A bit hard to interpret what exactly you're trying to say, but when you have the brightness set on auto, it will tend to drain battery life more quickly as the device will keep trying to see if it should lower the brightness or not.
Click to expand...
Click to collapse
Sorry for my broken english. I mean when phone's idle, it go down 2 or even 3%, not 1 by 1% as usual. So have anyone had the same thing?
it's actually pretty awesome, I was a bit worried when i was deciding which phone to get and almost bought a LG G2/GFlex instead because of it.
hieuhd93 said:
Sorry for my broken english. I mean when phone's idle, it go down 2 or even 3%, not 1 by 1% as usual. So have anyone had the same thing?
Click to expand...
Click to collapse
sounds normal to me, really depends on your standby settings......
I wouldnt worry about it:good:
OMFG! I am amazed like hell by this phone battery life! I've been using it like crazy, Facebook, games, LTE and still. I got drunk and it has saved me and my friends by having the battery still going so I could check how do we get back home. Guys, honestly. My old phone that is xperia play would run out of battery in no time - but this one has saved me. Also kudos to the SwiftKey that is helping me at the moment to type.
Wysłane z mojego C6903 przy użyciu Tapatalka
kusanou said:
A bit hard to interpret what exactly you're trying to say, but when you have the brightness set on auto, it will tend to drain battery life more quickly as the device will keep trying to see if it should lower the brightness or not.
Click to expand...
Click to collapse
Mmmmm... Not in All times ... Auto Brightness is much battery effecient
As the post i just have written, it has an awesome battery life. Those are my current brightness settings :
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mine is always at Maximum (100%) Auto-Brightness and always get 5+ hrs screen On TFT screens is more effecient that LCD i guess. My previous HTC One lasted 3hrs at Medium Brightness Considering same usage and its battery is 2300mA so i dont guess 700mA do this over 50% screen Usage.
its the Sony TFT i guess
TFT is just another variant of the LCD screen, so its the IPS. Not sure about the AMOLED but I also think that it's an LCD display. I don't think we will go father than LCD soon, another technology is plasma which isn't LCD but it's no good for mobile display because of its power consumption. Can't think about anything else than LCD and plasma atm. Battery capacity varies between devices because various phone components draw a different amount of current. 5" screen will surely draw more power than 3" display. Same thing goes with CPU, GPU, etc. Another thing is that more powerful phones have to get more powerful batteries so it won't run dry in under 1 hour of load (can't tell the exact number because I'm not a hardware designer, lol). Our device is beast so it also got a huge battery. It doesn't drain that much power on a medium load and battery management is excellent so that would be why it lasts so long.
Keep in mind that what I just said it's just my opinion based on my current knowledge, but I truly believe that I am right as I can't see any flaws in this way of thinking.
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olokos said:
TFT is just another variant of the LCD screen, so its the IPS. Not sure about the AMOLED but I also think that it's an LCD display. I don't think we will go father than LCD soon, another technology is plasma which isn't LCD but it's no good for mobile display because of its power consumption. Can't think about anything else than LCD and plasma atm. Battery capacity varies between devices because various phone components draw a different amount of current. 5" screen will surely draw more power than 3" display. Same thing goes with CPU, GPU, etc. Another thing is that more powerful phones have to get more powerful batteries so it won't run dry in under 1 hour of load (can't tell the exact number because I'm not a hardware designer, lol). Our device is beast so it also got a huge battery. It doesn't drain that much power on a medium load and battery management is excellent so that would be why it lasts so long.
Keep in mind that what I just said it's just my opinion based on my current knowledge, but I truly believe that I am right as I can't see any flaws in this way of thinking.
Wysłane z mojego C6903 przy użyciu Tapatalka
Click to expand...
Click to collapse
yup u r right... the HTC One got a 2300mA battery and i always put it in Power saver mode ... its battery lasts to only 3 hours screen on ! regardless the smaller screen 4.7" the weaker processor (SnapDragon 600 clocked @1.7ghz) slower gpu (320) ... in Comparison to the Z1 3000mA its a massive difference ! 700mA i dont guess so unless Sony did some Magic in this Battery ! (kinda reminds me of my older NoteII battery effeciency)
Yeah I think that they did a great job with the battery mangement. I didn't know that HTC one actually has that bad battery... I'm glad that I actually went for the Z1 because I've also have considered getting HTC but the camera simply pushed me away, so did the worse specs. This night I did some photos when it was completely dark and only the city lights were on, it looked like I'd take them at the sunset! Video recording didn't go as good as the night photos, but still WOW. This phone is surely going to make me a photographer because it is a pleasure to make photos with it
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first one is the auto mode and the second one is manual mode set at default because I handed over a photo to a friend of mine. Both of these photos were taken no longer than one minute between first and the second picture.
First one auto
Second one default manual.
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check my SEt on flickr
http://www.flickr.com/photos/[email protected]/sets/72157637726566185/
Wow, it seems that this camera is even better then I thought! I have a z1 for about 3 days so I still have to get used to its smoothness and perfection. Your every pic looks almost like a wallpaper. This is really impressive. I reckon that you are on .290 firmware, right?
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Many thanks ? but no am on . 257
Sent from my C6903 using Tapatalk
Well I wasn't entirely sober when these pictures were taken. My friend was in a worse state than I was so I'll see how it goes in the future But seriously, when I took those pictures I got stunned and if I wouldn't see it by myself then I wouldn't belive it.
Wysłane z mojego C6903 przy użyciu Tapatalka
I'm satisfied with the battery.
Sent from my C6903 using Tapatalk

Galaxy s4 i9505 - huge problem with battery drain on standby

So I've faced standby drain since one of the updates on the stock Lollipop and I can't get rid of that 'till this day. That was the reason why I decided to make a root and flash a custom rom. I've tried most of popular custom roms ( now I use Albe95 Astra N5 port ), but the I haven't noticed any difference. I replaced a battery and a charger with no results. It constantly drains about 2,3-2,6% / hour when idling. What is more, when I use my phone all the time it seems to be quiet normal ( about 3,5h SOT ), but standby drains makes it terrible and throughout the day I cannot get more than 1,5-2h SOT. I think it has to be related to wakelocks, because tonight I put my phone into UPSM and I was simply shocked when in the morning I found out that during the night it drained ONLY 6% haha. The problem is that I tried using the phone on fresh roms without any apps, but it didn't change anything. In BBS I can't see any major wakelocks, but on graphs there are a lot of wakelock stripes. Screenshot from BBS will be posted in the morning, because I rebooted my phone an hour ago and most stats from this day are lost, but you can look at the graph.
Here you have some logs from a month ago, maybe it will help you .
Thanks in advance and I'm counting on you!
Anyone?
Use "PowerNap" xposed module
I used to have it installed but it didn't work the way it should have.
New logs in the attachment.
Wysłane z mojego SM-G903F przy użyciu Tapatalka
And another log from bbs.
Use the stock rom with with imperium kernel
Or use imperium rom v11
Enviado do meu GT-I9505 através de Tapatalk
I have also had imperium rom, but with no effect. Actually, problem first occured on stock rom HOE3 ( Polish version ) and that was the reason why I decided to flash a custom rom.
I have never seen anyone who has that kind of problems on any custom rom, that's why I'm asking you for help, because I ran out of ideas...
Have you used something like Battery Stats plus to check? Anything syncing in the background?
I've just flashed to Imperium rom, and I'm actually impressed by the battery life during standby. Went sleep and woke up in the morning to find only 1% was used. I'm using the Imperial kernel too.
How can I check it? Disabling auto sync is the first thing I do after flashing rom. I've been using PowerNap and Amplify for the past few days, but literally nothing's changed, still constant ~2,5% /hour drain.
I got with CM12.1 Nightly + Amplify + Power Nap + Greenify + Underclocking very good battery life.. So if i am at 80% i have like 1h SOT (20% = 1h SOT).
The only problem that I have is on standby. If I had normal standby drain, I would be pretty happy with my battery life.
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I have also similar type of problem,I think that my problem is due to imei null/no network...........after watching ur thread i had tried different rom/stock firmware.....removing all bloatware...........using in offline mode.........but problem not solved...........if you got any solution,plz inform me....
I'm not sure if in my case it's the faulty battery. I've been using my old battery for the past two days and standby drain drastically decreased, now it's about 1% / hour. But that battery is also not that great, because it has less standby drain, but it drains way faster when I use my phone.
Maybe look to flash a custom kernel. If you do some research you can find one with the right settings to help your battery
I have imperium ll v1.9 right now. It doesn't change anything.
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Screen on time

It's amazing how much we actually use our phones in a given day, especially when we watch "videos"! Rate this thread to express how many hours of screen-on time you can get on the Sony Xperia 1 before depleting the battery.
Then, drop a comment if you have anything to add!
Getting about 6hrs of screen on time with heavy full day of use.
4k And 6 hours screen awesone!
Enviado desde mi G8141 mediante Tapatalk
https://www.cool3c.com/article/144393
A Hui actually tested the Xperia 1 built-in battery capacity of 3330 mAh, the measured power part was tested by PCMARK, testing 80% ~ 20% of the power operation, analog Internet, work, games mixed application, the test result is 11 hours 23 In terms of 6.5 吋 up to 4K resolution panel, Xperia 1's power performance is actually better than expected.
Compared with the historical flagship machine test data of the past generations, it has indeed improved a lot!*Even better than the FullHD model!
Xperia 1 – 11 hours 23 minutes
Xperia XZ2 premium – 7 hours 41 minutes
Xperai XZ3 – 9 hours 13 minutes
Xperia 1 actual analog power consumption test
In addition, A Hui has recently joined the actual use of mobile phones to test the operation in various practical situations, which allows everyone to make the mobile phone's power consumption in various applications have a more practical reference. This part of the test screen brightness is the same as 200 Lux. The volume of the mobile phone is adjusted to the maximum volume of the mobile phone, and the remote 4G SIM card is installed as a fixed test condition, and the mobile phone is fully filled to 100% in advance to start the test. The test project flow and results are as follows:
Xperia 1 mobile phone standby 8 hours test, measured 3% power consumption, 97% remaining
Xperia 1 online video playback 1 hour test, measured 9% power consumption, 88% remaining battery
Xperia 1 shoots 3D mobile game test for 1 hour (PUBG Mobile), the measured consumption consumes 18% of electricity, and the remaining 70%
Xperia 1 camera continuous video test for 1 hour, measured consumption of 29% power, remaining 41% power
The Xperia 1 browser continuously reads and browses for 1 hour, actually consuming 10% of the power, and the remaining 31%
Enviado desde mi G8141 mediante Tapatalk
in phonearena 1 month ago being 7 hours 10 mins ago
Do not let me upload screenshot
Enviado desde mi G8141 mediante Tapatalk
xzpremium1976 said:
in phonearena 1 month ago being 7 hours 10 mins ago
Do not let me upload screenshot
Enviado desde mi G8141 mediante Tapatalk
Click to expand...
Click to collapse
I can confirm it's really easy to push this phone to 7+hrs screen on time mark. Not sure what optimization Sony is using for battery this small but it's working flawlessly.
not the same to this youtuber...
youtube.com/watch?v=VxzmypyzBgg
it wuold be fine that all of us try to be honestly.....
not the same for this youtuber...
youtube.com/watch?v=VxzmypyzBgg
it wuold be fine that all of us try to be honestly.....
We have to wait for an objective comparison, where all the phones have the same brightness etc.
Also looking forward to the new mi9t pro or k20 pro.
javier211086 said:
not the same to this youtuber...
youtube.com/watch?v=VxzmypyzBgg
it wuold be fine that all of us try to be honestly.....
Click to expand...
Click to collapse
that is a Sony hater there are tests, berks that say that the Xperia 1 has good autonomy
Enviado desde mi G8141 mediante Tapatalk
xzpremium1976 said:
4k And 6 hours screen awesone!
Enviado desde mi G8141 mediante Tapatalk
Click to expand...
Click to collapse
The screen is in 1080p by default, not 4k all the time. Similar to previous XZP and Z5p.
iArvee said:
The screen is in 1080p by default, not 4k all the time. Similar to previous XZP and Z5p.
Click to expand...
Click to collapse
Source?
jackfrost3821 said:
Source?
Click to expand...
Click to collapse
Checked it myself. Did an adb and wm size. Showed a resolution of 1080 in 21:9 ratio.
iArvee said:
The screen is in 1080p by default, not 4k all the time. Similar to previous XZP and Z5p.
Click to expand...
Click to collapse
have you tried putting a 4k wallpaper?
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Guys someone can confirm good or bad battery life here?
Wysłane z mojego SM-G965F przy użyciu Tapatalka
Thunderbolt said:
Guys someone can confirm good or bad battery life here?
Wysłane z mojego SM-G965F przy użyciu Tapatalka
Click to expand...
Click to collapse
Good
Not enough info bro
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Thunderbolt said:
Not enough info bro
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Click to expand...
Click to collapse
Lasts all day streaming music to Sony / Sonos speakers, browsing, email etc etc . Came from an XZ Premium and this phone is very good indeed.
Yeah but how about SOT with your using?
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Thunderbolt said:
Yeah but how about SOT with your using?
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Click to expand...
Click to collapse
Around 5-6 hours depending on usage, only got the phone on Monday, longest was just over 6.5 but battery was nearly dead by then.

Screen on time

It's amazing how much we actually use our phones in a given day, especially when we watch "videos"! Rate this thread to express how many hours of screen-on time you can get on the OnePlus 7 Pro before depleting the battery.
Then, drop a comment if you have anything to add!
Whoever is going to post SOT, do not forget to mention refresh rate used (90 or 60 Hz), screen resolution, "tweaks" and "measures" taken in settings etc. Also show full screenshots. Thanks.
Yesterday was my first full 24 hours with the device. Charged it fully ion the morning and went to bed with 26% battery and 5hr 15min of SOT. I was using 90Hz with resolution set to "auto". I don't tend to run my brightness very high, maybe around 40-45% except when outdoors in daylight. I did a fair mix of browsing, gaming, social media, and texting. I tend to keep my rarely-used apps restricted from battery and data usage. I use the dark theme and darker wallpaper. I did not take a screenshot last night, but will do so today after completing another full day of use.
This is my phone's sot with 90hz refresh rate , auto switch for resolution and dark theme enabled. I was mostly on wifi. Usage between moderate to heavy.
This is mine.. wanted to check out the actual SOT without 90hz and qHD .. so this is 60hz with 1080p.. but used 90hz for like 4-5 hours to show it off to some friends..
https://youtu.be/XhqDtIcIA6E
Difference between 90hz with auto switch and 60hz with fhd+
I've been getting great battery life. I have the auto switch with the resolution, and 90hz always.... Also had the oneplus 6t and this phone is def an upgrade
My battery life is pretty bad but I have been using camera quite a bit
I hope it improves
This was my first full day, 90hz the whole time,
Sent from my GM1915 using Tapatalk
Ok.. so day 2 with the 7 pro .. 1080p with 90hz.. mix between WiFi and volte.. Bluetooth and wifi always on.. I'd say I'm impressed..
raunak.0731 said:
Ok.. so day 2 with the 7 pro .. 1080p with 90hz.. mix between WiFi and volte.. Bluetooth and wifi always on.. I'd say I'm impressed..
Click to expand...
Click to collapse
These are excellent results .
Couldn't you guys just type SOT and attach the screenshot as a proof as well as the apps you used, not only a SS? then we wouldn't need to open every picture
Day one everything enabled, 90hz with auto switch resolution, about 6 hours of SOT. Not bad, not great.
I'm still on Day two, but I went down to FHD resolution on 90hz, greenified, and turned off stuff I'm currently not using like BT and GPS and I'm at 2:42 SOT with 75% battery. Pretty nutty. I won't be rolling this way all the time, but nice to know what's available. I can only imagine how much more we can squeeze out on 60hz. This phone is going to be great for vacation days.
malek777 said:
These are excellent results .
Click to expand...
Click to collapse
This is even better.. decided to drain the thing..
Its just home and wifi or mixed usage?
Wysłane z mojego SM-G965F przy użyciu Tapatalka
Mixed .. 70%wifi 30% lte
raunak.0731 said:
Mixed .. 70%wifi 30% lte
Click to expand...
Click to collapse
Thx man, impressed to be honest.
Wysłane z mojego SM-G965F przy użyciu Tapatalka
Resolution: auto switch at 90hz
Youtube, gaming, social, internet browsing
Never got that much juice out of my OP6.
Here is my first full day with phone.
Unplugged when I woke up with 100%.
Res: auto
Refresh: 90
Had everything on like I normally would, gps, wifi, Bluetooth. Was on LTE almost all day. Only on wifi from 7pm until this screenshot around 11pm.
Not good, not great but was the first day. My 6t would end the day with more than 30%.

Battery life and SoT

Hi
How does it compare with the k20 pro? Or the OnePlus 7? Can we get some reports of battery life of this phone?
Thanks
I've seen varied results. Check out YouTube, earlier videos I watched has the 9T beating everything op7 pro ,p30 ,k20 pro .
But I've watched some recently with the K20 pro beating it but guess it's dependant on what's actually running on the phones
I get about 6 to 7 hours SOT over almost 2 full days on the Mi9T with medium usage which means no gaming, just social media stuff, whatsapp etc.
It is such a huge improvement over my old phone, the OnePlus 3
I am getting around 6hrs indian variant but I still haven't gone too 100% charge yet
Battery is amazing!
More info on https://www.gsmarena.com/xiaomi_mi_9t-review-1950p3.php
Averaging 10hrs over the course of 2 days for me so far :good:
Average 10 hours here over 2 days but if I watch local recording instead of youtube for exemple, will go over 12/13 hours ! I use night mode and I care about no having background activity.
Here's mine.
Havoc OS GSI
Usually I get around 10h sot.
Schnedi said:
Here's mine.
Havoc OS GSI
Usually I get around 10h sot.
Click to expand...
Click to collapse
which is better between Havoc OS and Pixel Experience for the battery life ?
thanks guys. i bought mine today. i'm moving from the battery beast moto z play
Schnedi said:
Here's mine.
Havoc OS GSI
Usually I get around 10h sot.
Click to expand...
Click to collapse
Where can I find havoc os for mi 9t?
Wysłane z mojego Mi 9T przy użyciu Tapatalka
isman77 said:
which is better between Havoc OS and Pixel Experience for the battery life ?
Click to expand...
Click to collapse
Most of GSIs will give you the same battery life. I've tried 8 or 9 and always get around 1d 12h and 9-10h sot
sabat_poznan said:
Where can I find havoc os for mi 9t?
Click to expand...
Click to collapse
It's not specific for the Mi 9T
https://forum.xda-developers.com/project-treble/trebleenabled-device-development
Schnedi said:
Most of GSIs will give you the same battery life. I've tried 8 or 9 and always get around 1d 12h and 9-10h sot
It's not specific for the Mi 9T
https://forum.xda-developers.com/project-treble/trebleenabled-device-development
Click to expand...
Click to collapse
Thank you for your answer. there is no bug or problem you have encountered?
I've got mine today and had 69% at unboxing. Now I have 19% and around 4,5h SOT. Caused by nonstop setting up phone
Odoslané z Mi 9T pomocou Tapatalku
JonasVFC said:
thanks guys. i bought mine today. i'm moving from the battery beast moto z play
Click to expand...
Click to collapse
i also have moto z play and i am interested in mi9t, how it compares in battery life?
Giorgos Chatziioannou said:
i also have moto z play and i am interested in mi9t, how it compares in battery life?
Click to expand...
Click to collapse
First day looking good 57% @ 4h16 sot
Giorgos Chatziioannou said:
i also have moto z play and i am interested in mi9t, how it compares in battery life?
Click to expand...
Click to collapse
It's better ! not a univers between the two but it's better
Schnedi said:
Most of GSIs will give you the same battery life. I've tried 8 or 9 and always get around 1d 12h and 9-10h sot
It's not specific for the Mi 9T
https://forum.xda-developers.com/project-treble/trebleenabled-device-development
Click to expand...
Click to collapse
How do you deal with camera not going in/out with GSI roms?
syl0n said:
How do you deal with camera not going in/out with GSI roms?
Click to expand...
Click to collapse
I'm using Havoc, and it has a fix for that, camera works perfectly.
Are You guys charging phone every time to 100 procent or only to 80 to save battery ? I bought it yesterday waiting for package and I want to take good care of battery

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