Ambient Display = Power Suck - Alcatel Idol 4S Guides, News, & Discussion

Noticed recently that my battery was draining faster overnight than normal (Over 10% for 7-8 hours sleep) which seemed excessive compared to when I first received the phone.
I switched off Ambient Display on a whim and it makes a big difference. Doze is working as expected again and if I don't use my phone, my standby time is ~3 days. Before turning off Ambient Display, I thought my battery was going wonky after the last update a few months ago. Hopefully this helps someone.

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[Q] Battery Life - Screen On

I've had my Droid X for about a month now. In general it goes about a day before I have to charge it. That seems to be about normal. My questions is in that day of total time, how much time can the screen be on before having to charge. I seem to get about 2 1/4 to 2 1/2 hours with the screen on. That doesn't seem that great, but I was wondering what other folks are seeing.
Thanks.
Depends what else is going on for the phone, and what the brightness is set to (in extremes, what the temperature is).
But, even in the worst case, 2.5hrs is a bit low. I recently got just about 3 hours streaming Netflix, 100% brightness, on a decent cell connection, on my 11-month old DX.
I would expect close to 8 hours on a constantly on screen, just running the clock, 1% brightness, in airplane mode.
Extended Battery
I didn't mention that it was about 2.5 hours, with the extended battery (1850maH). I'm running GB, auto brightness adjustment, no over/under clocking. Push email/calendar/contacts/tasks from our Exchange server. Auto-off after 30 seconds.
Shouldn't I be able to expect at least 4 hours screen on time under this configuration?
Yes you probably should be getting better battery life

Official Idol 3 Battery Thread

I figured we could get this started, so we can start to post stats and screenshots once you finish initial setup/installation and get into regular daily use.
went to bed last night with the idol at 75%. woke up and it was still at 75% to my surprise. (and I did the update right out of the box, for anyone wondering.)
Seem to be great, can't wait fort mine
The phone arrived at around 40-45%. Spent around 2 hrs updating/installing/customizing stuff which was enough to drop the battery to 15%. Mind you that almost all factory settings were still there like vibrate on almost everything and sound on almost everything. Battery was fully charged rather quickly. I had around an hour of SoT before going to bed with around 80-75%. I woke up to a 70% battery after 10 hrs ( I slept in).
I think battery on mine could be improved by turning down the Google Now settings. It is the most power hungry in the battery stats at 9%. Oddly, the location icon is almost always on even if I'm not doing any location related tasks. I'm hoping to look into this more and fully test the battery tomorrow when I go to Sta. Cruz.
The Idol 3 just won't die! I'm using it around the house. Haven't actually put a sim card in it yet, so that might explain some of the great battery life that I've been getting. But this is the first full power cycle after getting it on Saturday. Auto brightness, full sync. I had to stop at 11% so I could do a charge test today. But I have no doubt that this 11% could have gotten me another hour of screen on time. Tons of streaming Sirius too over the front facing speakers (like 5 hours). Very impressed so far. The price is justified by the screen and the speakers alone in my opinion. Add great battery life to the mix and it's a pretty special device IMO.
Charging time is done. Used an Anker 2.0 Quick Charge (just to make sure it got the maximum it could handle). Went from 11% to 100% in 2 hours and 28 minutes. Not too shabby considering how long it holds on to the charge.
Bettery drain while on wifi
Hi, I have bad battery drain while on wifi. What I noticed is that cell signal goes from empty to full while unlocking screen. It goes up to 10% per hour. But when I was away from home for few hours on lte, it was very minimal. Any ideas? Software bug or maybe some app is causing that? Thanks!
czaplin said:
Hi, I have bad battery drain while on wifi. What I noticed is that cell signal goes from empty to full while unlocking screen. It goes up to 10% per hour. But when I was away from home for few hours on lte, it was very minimal. Any ideas? Software bug or maybe some app is causing that? Thanks!
Click to expand...
Click to collapse
Did you do the update that appeared as soon as you turned it on out of the box? I had the phone on wifi all weekend (it never left the house) and the battery life was amazing. See my posts above. And I did the update first thing when I got mine.
lordlittlebrooks said:
Did you do the update that appeared as soon as you turned it on out of the box? I had the phone on wifi all weekend (it never left the house) and the battery life was amazing. See my posts above. And I did the update first thing when I got mine.
Click to expand...
Click to collapse
Yeah, that's the first thing I did. Today I'm on LTE all day long and battery is amazing. But when on Wi-Fi my cell signal goes to emergency back and forth. Maybe my phone is a lemon
Sent from my 6045I using XDA Free mobile app
I should have checked the battery life before loading all my apps but I forgot. During sleep hours I only have the wifi, auto sync and phone antenna enabled. I also either use the adaptive brighness at 50% or have the brightness set to about 20% with adaptive disabled. The first night I checked the battery overnight usage it was down 16% in 10 hours. That was also runny 3 apps on the notification area. The drain comes to 1.6% per hour. The next night I removed the 3 apps that run in the notification area and the drain was 10% in 8 hours, which comes to 1.25% per hour. That's better than my old phone but I still think it's too high. No apps are open in the recent apps screen.
Is anyone getting better or worse? I would like to compare my battery drain with everyone else.
Edit: I did disable Wifi Network Notification and Scanning Always Available. I'm not sure what kind of effect they have on the battery though.
czaplin said:
Yeah, that's the first thing I did. Today I'm on LTE all day long and battery is amazing. But when on Wi-Fi my cell signal goes to emergency back and forth. Maybe my phone is a lemon
Sent from my 6045I using XDA Free mobile app
Click to expand...
Click to collapse
Did you wipe your cache after the OTA update? I remember my Nexus 4 and Nexus 7 had temporary issues with battery life that were cleared up by a wiped cache/factory reset.
macallik said:
Did you wipe your cache after the OTA update? I remember my Nexus 4 and Nexus 7 had temporary issues with battery life that were cleared up by a wiped cache/factory reset.
Click to expand...
Click to collapse
No I did not. I guess this is my last resort now. I will check tonight. Meh...
czaplin said:
No I did not. I guess this is my last resort now. I will check tonight. Meh...
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Click to collapse
It didn't work. That's too serious issue for me. Sending back to amazon. I'll stay with my G3 and 6000mAh battery. Waiting for G4 price drop
czaplin said:
It didn't work. That's too serious issue for me. Sending back to amazon. I'll stay with my G3 and 6000mAh battery. Waiting for G4 price drop
Click to expand...
Click to collapse
I have the HTC m8 and g3, had the m9...
I think you have a problem with Google apps...Because with the m8 I had 7 hours screen on time in 24 hours, 6 hours with the m9, 5 hours with the g3...
And every reviewer criticizes the bad battery life of the g3 vs the very good battery life of the idol[emoji2]
HTC m8 s on + insertcoin
Yesterday was my first battery experience day. I have to say it turned out pretty good. I got roughly 16hrs from 100% charge down to 15% charge. I got a battery warning when i was headed to bed. Throughout the day, here's a list of the things I did in general to give a scope on usage:
* I had all services on, LTE, Wifi, Bluetooth, GPS (High precision)
* i used it to read a kindle book. I had my screen set at about 80% brightness the whole day.
* I have "Automatic" app which uses the phone GPS to track my drives to and From work.
* I ran with Runkeeper GPS
* also streamed music to and from work on my wohle commute (roughly 45 minutes).
* Then throughout the day did normal checking of various apps and websites, and notifications.
* In general during the work day I don't use it much from 9-5, except maybe to check it once an hour , and read a little.
Previously on my Nexus 4, I would have had to have it charging all the way to work. Then charging all the way home, and many times it wouldn't make it to bed time without another charge. With the Idol 3, i didn't put it on a charger once throughout the whole day. Pretty awesome.
This is my second full day. I expect that it will improve after a few cycles but I have absolutely nothing to complain about. WiFi on most of the day. 2 Gmail accounts syncing, Bluetooth on, display only at 50%, (not to save battery, but just because I don't need it any higher)
I have a few small hiccups with the DTTW but it isn't terrible.
P.S. This blows away my Zenfone 2 in battery life.
Battery life is ridiculously good. Charging my phone is no longer a pressing issue for me nowadays. Personally, I am indoors most of the day so I have set my screen brightness to 0% and it is perfectly fine. When I am outdoors, I will pump up the brightness to 100% which increases the battery consumption noticeably.
I've had the phone for a week and a half and still have never gotten down low enough for Battery Saver mode to kick in.
For me battery hold amount of charge EOD.
100% in morning around 10 AM.
1. wifi/4g ON all the time.
2. GPS during commute to work and vice-versa
3. Music app for 1.5-2 hrs.
4. played game for 2 hrs.
5. normal browsing.
Now @ 7 PM : still 45% left.
For those still unhappy with the battery life here are a few free apps that can help:
https://play.google.com/store/apps/details?id=org.gpo.greenpower&hl=en [ Battery saver...does things like only keep wifi on periodically to check for hotspots and only turn on bluetooth when charging etc ]
https://play.google.com/store/apps/details?id=com.vitocassisi.luxlite&hl=en [ Adjust screen brightness based on light levels ]
https://play.google.com/store/apps/details?id=com.keyes.screebl.classic [ Keeps screen on when phone is held in upright position but quickly turns screen off when phone is placed flat ]
I use the pay versions of these and consider them worthwhile.
Does anyone know how the automatic brightness works or if its even useful to have it on
Sent from my 6045I

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 Google Pixel 3 before depleting the battery.
Then, drop a comment if you have anything to add!
So 3rd day and these are my stats.
30% Wifi 70% LTE
Location when needed bluetooth off. AOD on pickup and new notifications only.
I am pretty consistently getting to 20% battery with 4 hours of screen time regardless of my usage. I'm mostly on wifi, probably 90% of the time.
I'm surprisingly getting an hour less than my pixel 2. It's around 5 hours.
backslashV said:
I'm surprisingly getting an hour less than my pixel 2. It's around 5 hours.
Click to expand...
Click to collapse
The Pixel 3 has a 13% larger screen and 13% more pixels than the Pixel 2 with only an 8% bigger battery. Getting less battery life isn't a surprise at all.
What is a surprise is your claim that the Pixel 2 got 6 hours. With a 5" 1080p screen and only a 2700mAh battery I have a hard time believing anything more than about 4.5 hours.
Mix of Wi-Fi and walking around on LTE for a few hours outside
Its kinda bad. My brother cant get over 5 hours sot and the standby drain is really high. If he keeps it idle it drains alot.
I've had my Pixel 3 XL for roughly 7 days now and SOT have been consistent around 4:30 - 5:15 hrs going from 95 - 20 percent discharges before I recharge.
Not bad, but I have to admit that I was expecting something better like easily reaching 6+ hrs for normal usage.
My last hope is that boy "Adaptive Battery" if it would help after couple of weeks at learning curve.
MonstaSaleens said:
Its kinda bad. My brother cant get over 5 hours sot and the standby drain is really high. If he keeps it idle it drains alot.
Click to expand...
Click to collapse
Try turning off the Always ON display. It drains the battery a lot. Initially i was getting 5 hrs max on wifi. Now its a little stable and i am able to clock around 8hrs SOT with average use. On LTE, it will drop drastically to 5hrs maybe.
Sent from my Pixel 3 using Tapatalk
I've have pretty bad result being pretty much 95% on wifi with low app usage
I'm seeing mixed results with SoT on two separate Pixel 3s. On my SO's Pixel 3 its getting 8 hours while mine is only getting closer to 3-4 hrs and she is a heavier user than me usually. Seems to me that the information the adaptive battery has on usage matter a great deal on your battery life. I opted to start fresh on my Pixel 3 while she opted to transfer from an older Pixel.
Getting consistent 6-7 hours of SoT without ambient display, half WiFi, half data and some Bluetooth usage. Using amoled black or dark mode with many apps and an amoled themed wallpaper. This is at 90% brightness. Quite impressed.
getting 5/6h SOT
Screen brightness at about 75%, and nightmode at the end of the day.
Mix of WIFI/ LTE during day and Bluetooth in the car obviously.
So far impressed since the size of the battery is small compared to other devices.
My HTC u11+ was getting about 6h SOT with a much much larger battery capacity.
I'll be the first to admit I dont have much running in the background right now, but I'm still pleased. In case the links don't work -- 6 h 30 m screen on time. Phone charged 20 hours ago. (I'm not usually that heavy of a user, just wanted to see how it would fare in the real world. ) Mix of WiFi, LTE, bluetooth on about half the time.
How?
Use battery saving mode on time. I'm getting similar results. I accidently plugged in the charger at the last bit (thought I took the screenshot but I didn't) but you can see it only charged about 2%.
1 Hour of Screen on Time???
I just received my Pixel 3 3 days ago, and the battery is awful. 1 hour of Screen on time? Is this normal?
I was barely using any apps.
"I just received my Pixel 3 3 days ago, and the battery is awful. 1 hour of Screen on time? Is this normal?
I was barely using any apps.
"
You're using ambient display, turn it off for a day which should resolve all your issues. Yes it means you'll have to wake up the phone in order to see whatever messages you may or may not have received. But it'll extend the battery time.
YorbenB said:
"I just received my Pixel 3 3 days ago, and the battery is awful. 1 hour of Screen on time? Is this normal?
I was barely using any apps.
"
You're using ambient display, turn it off for a day which should resolve all your issues. Yes it means you'll have to wake up the phone in order to see whatever messages you may or may not have received. But it'll extend the battery time.
Click to expand...
Click to collapse
I was having bad battery life too and wanted to sell it for the OnePlus 6T. What I did was left on battery saver all day and it worked out pretty good. Try that for now and see how it works for you.
YorbenB said:
"I just received my Pixel 3 3 days ago, and the battery is awful. 1 hour of Screen on time? Is this normal?
I was barely using any apps.
"
You're using ambient display, turn it off for a day which should resolve all your issues. Yes it means you'll have to wake up the phone in order to see whatever messages you may or may not have received. But it'll extend the battery time.
Click to expand...
Click to collapse
selw0nk said:
I was having bad battery life too and wanted to sell it for the OnePlus 6T. What I did was left on battery saver all day and it worked out pretty good. Try that for now and see how it works for you.
Click to expand...
Click to collapse
If you opted to start from scratch when you set up your Pixel 3 and did not transfer the data from a device that already has the adaptive battery feature getting about 1 hour of SoT seems to be normal based on my experience. I haven't been able to confirm this, but based on my experience the adaptive battery feature seems to use machine learning. It learns what apps you use over time and how often you use them. The more data it has, the better the battery life you will get. It took about 3 weeks for my battery to settle down. Currently, my battery is estimated to last about 17 hours from a full charge. My suspicion is that the Pixel 3 start out running everything you install and slowly learns how aggressive it should limit the battery usage of an app. Aside from leaving it on battery saver, I would also recommend not charging it overnight a couple of days and letting it sit there. That seems to have helped me with the battery life and my device knowing to limit apps I don't use frequently.

Battery discharge rate when screen is off?

Could anyone with a Redmi K20/Mi9T report your battery discharge rate while screen is off? I am coming from a Redmi Note 3 and it seems noticeably worse from the time I bought it 6 months ago. Mine is anywhere between 1.8 to 2.5 % per hour. If I go to sleep with 70% it'd be below 60 by the time I wake up. The battery stats from settings showed that my device was not awake during that time. I tried uninstalling every non system app. My device is not set to sync even GMail. The device isn't rooted and if yours showed better results I would root and report more details on what might be the cause.
justmat said:
Could anyone with a Redmi K20/Mi9T report your battery discharge rate while screen is off? I am coming from a Redmi Note 3 and it seems noticeably worse from the time I bought it 6 months ago. Mine is anywhere between 1.8 to 2.5 % per hour. If I go to sleep with 70% it'd be below 60 by the time I wake up. The battery stats from settings showed that my device was not awake during that time. I tried uninstalling every non system app. My device is not set to sync even GMail. The device isn't rooted and if yours showed better results I would root and report more details on what might be the cause.
Click to expand...
Click to collapse
I agree with you.
I've done a lot of measurement on the drain issue in standby.
I am on EU weekly rom 'without root' and I follow with simple battery graph application for a better drain slope visibility. (Official gauge is far to be accurate!)
First finding, AOD is a big consumer ( some 1%/h) during day. That raise day stand by value to 1.5- 2%/h.
During night when phone temperature is stabilized (see graph) and AOD is ON we reach 1%/h.
Without AOD number fall to 0.3- 0.5%/h.
Question:
These numbers are high, but are they too high if we want AOD feature?
Sure they have a psychological impact because in 24h use we loose some 24% of a battery that can last 2 days, for "nothing".
I din't noticed any wakelock in one month test and drain in heavy use is normal. (EG: -13%/h in nave display ON.)
I hope Xiaomi Android 10 will improve with time.
Discussion is open.

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Google Pixel 5's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
I took my Pixel 5 off charge at midnight last night and when i looked at it at this 8am morning i was amazed to see the battery was still at 100% (WiFi, 4g, NFC and Bluetooth all on)
MrBelter said:
I took my Pixel 5 off charge at midnight last night and when i looked at it at this 8am morning i was amazed to see the battery was still at 100% (WiFi, 4g, NFC and Bluetooth all on)
Click to expand...
Click to collapse
I can also confirm that the battery life/standby drain is absolutely amazing.
Just today gsmarena also posted its battery stats on pixel 5, which got Endurance rating of 93h, which according to my own experience and usage pattern means its helluvah performer battery wise! Anything over 80h is good!
https://www.gsmarena.com/battery-test.php3
I thought i would just leave it to see what would happen overnight again, so i am still on the same charge as the first screen shot but i have 3 hours SOT time now.
The stand by drain isn't quite as good as I expected. I'm losing about 1/3% per hour. When my Pixel 2 XL was brand new it also drained about 1/3% per hour on stand by and that was with a smaller battery and less power efficient processor. I'm certinaly not complaining, 1/3% per hour is great. Just a little surprised that it's a tiny bit worse than my Pixel 2 XL.
Mine definitely seems worse than my 2XL - that would maybe lose 5-10% overnight, while the 5 seems more like 20% at the moment, even after 2 weeks for it to settle down.
Just loosing 1-3% over the complete night here. Maybe have a look into your battery statistics to find out whats causing this drain on your devices?
This is mine overnight again.
MrBelter said:
This is mine overnight again.
Click to expand...
Click to collapse
Reboot your device and check again.,is a known bug also on 4xl ....
Mine over night ...
https://ibb.co/MMY8wXq
From 44 to 28% in 7 hours. With AOD. It seems like AOD never sleeps. It's avout 2%/h.
Can anyone with AOD report his own "score".
cultofluna said:
Reboot your device and check again.,is a known bug also on 4xl ....
Click to expand...
Click to collapse
Well if it ia bug i am delighted with it, i am getting all but 2 days battery life with 5 hours SOT. (FWIW it rebooted last night after installing the November patch and the standby drain overnight was just the same)
MrBelter said:
Well if it ia bug i am delighted with it, i am getting all but 2 days battery life with 5 hours SOT. (FWIW it rebooted last night after installing the November patch and the standby drain overnight was just the same)
Click to expand...
Click to collapse
Same here. First night stayed at 100% as well, then next day synced everything and lost 2%, last night with flip to shh on I lost 1% over close to 8 hours. First Pixel where I'm not hunting for a plug out during the day. I have exercise tracking software I use pretty much daily so SOT doesn't really pertain when it's activity tracking with screen off. But still getting around 5 hours taken into account.
Just to add my battery indicator drops how i would expect it to with usage, i am not seeing this stuck bug thing people are seeing.
akulp said:
Mine over night ...
https://ibb.co/MMY8wXq
From 44 to 28% in 7 hours. With AOD. It seems like AOD never sleeps. It's avout 2%/h.
Can anyone with AOD report his own "score".
Click to expand...
Click to collapse
Yeah, that's pretty bad. I haven't used AOD on my Pixel 5 but I remember testing it on my Pixel 2 XL when it was new and stand by tripled from 1/3% per hour to about 1% per hour. So yeah 2% does seem really bad.
The screenshot speaks for itself.
smorgar said:
The screenshot speaks for itself.
View attachment 5191131
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Click to collapse
What the hell?!?! What kind of magic is that? With just over 4 hours screen on time the best I could do is maybe 2 days. You got 6?!?! What's your secret?
Im note sure mate... I even use dual sim!
Next run, even better...
smorgar said:
Next run, even better...
View attachment 5198525
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Click to collapse
fantastic result. How is Spotify using little energy there? for me it consumes the battery a lot.
In addition, the standby time is very poor. Not using the phone at all, maybe he could handle it Three days. And so it barely lasts 2 days out of 3h SOT if I'm lucky. Of course, I can achieve 8-10h SOT in one time but the standby kills the batteries in the long run.
Hi all, just wanted to report my less than ideal standby drain.
My Pixel 2 XL used to behave better as someone previously commented - I can 100% confirm this.
My P5 would usually use around 0.8/1.1%/h with hibernation time of roughly 80/90% during screen off (AccuBattery stats).
The average values might be skewed a bit since during the day I often listen to Spotify via my TWS buds, but at night the graph doesn't lie: it's quite visible that something's going on, as per screenshots.
Unfortunately I took them after this morning's quick refill, but you can still see clearly that when I put it on my night stand it was at ~50% and I woke up in the high 30s...
The line is not even close to being flat.
Where has all the nice work around doze gone?
Also, why is it so hard for Google to let us know precisely what is using all that energy?
Any tips?
I'm not rooted, no AOD and all my sensors are on - I don't want to babysit my battery.
With this setup I was getting better standby efficiency with my 2XL, I'm sure.
I've already reported this to Google with logs, hopefully some upcoming monthly patch will include some standby optimization

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