s9 plus battery life trick - Samsung Galaxy S9+ Questions & Answers

I have the exynos unlocked s9 Plus model. I never experienced horrible battery life (my usual SOT was about 4+ hours) but I could never get the fantastic SOT of the snapdragon models. Best SOT I had seen was around 6 hours after applying dark themes, etc.
I tried a little thing two days ago, and at least for me, it seems to work.
I let the battery drain down to 1% or 2%. I shut down the phone, and rebooted to recovery mode (holding power, bixby and up buttons), and I deleted the cache partition. After deleting the partition and selecting reboot, I immediately plugged the phone on the charger (fast charge was selected).
I let the phone get to 100% (without messing with it).
My settings are:
AOD off.
Android system background operation set to OFF.
Disable network data when wifi is on (from developer options settings).
Connected to 2,4GHZ wifi (not 5ghz).
The above are the main changes I have set to save battery. (I had these settings also before I did the above trick).
All the rest settings are normal. Normal white theme, synchronization is ON, GPS accuracy is set to high etc. I use FB, G+, Messenger, Youtube a lot.
I don't know why and how, but the battery life seems to have boosted a lot. And this is due to the standby time which now is extremely minimal.
I managed to get 8 hours of SOT(!) which I have never seen before in all the the months I own the phone. Not even near that SOT.
I am not saying that this is the solution to all the exynos battery problems. I just thought I should post this so you can try it.
I really hope that it helps you too.

madvinegar said:
I have the exynos unlocked s9 Plus model. I never experienced horrible battery life (my usual SOT was about 4+ hours) but I could never get the fantastic SOT of the snapdragon models. Best SOT I had seen was around 6 hours after applying dark themes, etc.
I tried a little thing two days ago, and at least for me, it seems to work.
I let the battery drain down to 1% or 2%. I shut down the phone, and rebooted to recovery mode (holding power, bixby and up buttons), and I deleted the cache partition. After deleting the partition and selecting reboot, I immediately plugged the phone on the charger (fast charge was selected).
I let the phone get to 100% (without messing with it).
My settings are:
AOD off.
Android system background operation set to OFF.
Disable network data when wifi is on (from developer options settings).
Connected to 2,4GHZ wifi (not 5ghz).
The above are the main changes I have set to save battery. (I had these settings also before I did the above trick).
All the rest settings are normal. Normal white theme, synchronization is ON, GPS accuracy is set to high etc. I use FB, G+, Messenger, Youtube a lot.
I don't know why and how, but the battery life seems to have boosted a lot. And this is due to the standby time which now is extremely minimal.
I managed to get 8 hours of SOT(!) which I have never seen before in all the the months I own the phone. Not even near that SOT.
I am not saying that this is the solution to all the exynos battery problems. I just thought I should post this so you can try it.
I really hope that it helps you too.
Click to expand...
Click to collapse
Hi, how can i set Android system background operation OFF?
Thank u

Giangii said:
Hi, how can i set Android system background operation OFF?
Thank u
Click to expand...
Click to collapse
Go to battery usage, open green android system icon and uncheck "allow background activity" switch

djoxie said:
Go to battery usage, open green android system icon and uncheck "allow background activity" switch
Click to expand...
Click to collapse
Thats right, but keep in mind that this setting will be reverted to enabled on each reboot of the phone.

-Vulture- said:
Thats right, but keep in mind that this setting will be reverted to enabled on each reboot of the phone.
Click to expand...
Click to collapse
That is correct, forgot to mention it

Do you how disabling Android system background activity will affect the phone? Does it delay notifications or anything?

Ahmedalwakeel said:
Do you how disabling Android system background activity will affect the phone? Does it delay notifications or anything?
Click to expand...
Click to collapse
Not that i know off, but thats just me.

madvinegar said:
I have the exynos unlocked s9 Plus model. I never experienced horrible battery life (my usual SOT was about 4+ hours) but I could never get the fantastic SOT of the snapdragon models. Best SOT I had seen was around 6 hours after applying dark themes, etc.
I tried a little thing two days ago, and at least for me, it seems to work.
I let the battery drain down to 1% or 2%. I shut down the phone, and rebooted to recovery mode (holding power, bixby and up buttons), and I deleted the cache partition. After deleting the partition and selecting reboot, I immediately plugged the phone on the charger (fast charge was selected).
I let the phone get to 100% (without messing with it).
My settings are:
AOD off.
Android system background operation set to OFF.
Disable network data when wifi is on (from developer options settings).
Connected to 2,4GHZ wifi (not 5ghz).
The above are the main changes I have set to save battery. (I had these settings also before I did the above trick).
All the rest settings are normal. Normal white theme, synchronization is ON, GPS accuracy is set to high etc. I use FB, G+, Messenger, Youtube a lot.
I don't know why and how, but the battery life seems to have boosted a lot. And this is due to the standby time which now is extremely minimal.
I managed to get 8 hours of SOT(!) which I have never seen before in all the the months I own the phone. Not even near that SOT.
I am not saying that this is the solution to all the exynos battery problems. I just thought I should post this so you can try it.
I really hope that it helps you too.
Click to expand...
Click to collapse
Giangii said:
Hi, how can i set Android system background operation OFF?
Thank u
Click to expand...
Click to collapse
djoxie said:
Go to battery usage, open green android system icon and uncheck "allow background activity" switch
Click to expand...
Click to collapse
-Vulture- said:
Thats right, but keep in mind that this setting will be reverted to enabled on each reboot of the phone.
Click to expand...
Click to collapse
djoxie said:
That is correct, forgot to mention it
Click to expand...
Click to collapse
Ahmedalwakeel said:
Do you how disabling Android system background activity will affect the phone? Does it delay notifications or anything?
Click to expand...
Click to collapse
-Vulture- said:
Not that i know off, but thats just me.
Click to expand...
Click to collapse
With the latest update (BRE), there's no need to disable Android System background activity, because is not draining battery anymore.
I did many tests every update, and only BRE fixed the drain from it. Still, it seems that disabling the option is working for some people, is about trying.

Galaxo60 said:
With the latest update (BRE), there's no need to disable Android System background activity, because is not draining battery anymore.
I did many tests every update, and only BRE fixed the drain from it. Still, it seems that disabling the option is working for some people, is about trying.
Click to expand...
Click to collapse
Yeah i can confirm that, with the latest BRE update it doesnt matter if you turn background usage for android system on or off.

great
cool sharing

Where to find Disable network data when wifi is on (from developer options settings).
I've got developer options on but i cannot find this setting, does it have another name?

deboopi2 said:
Where to find Disable network data when wifi is on (from developer options settings).
I've got developer options on but i cannot find this setting, does it have another name?
Click to expand...
Click to collapse
It says something like "Keep network data on even if wifi is on" but you should disable that option.

Oh, that one , it's already turned off for a long time, battery life still sucks

How can you guys live without 5G WiFi?

I did a reset of the phone and installed without restoring a backup of apps.
At least standby time increased drastically.
I still must check the SOT, see if that one increase too

Cool! I'll give it a shot!

Does running on 2.4Ghz really improve the battery life?

madvinegar said:
I have the exynos unlocked s9 Plus model. I never experienced horrible battery life (my usual SOT was about 4+ hours) but I could never get the fantastic SOT of the snapdragon models. Best SOT I had seen was around 6 hours after applying dark themes, etc.
I tried a little thing two days ago, and at least for me, it seems to work.
I let the battery drain down to 1% or 2%. I shut down the phone, and rebooted to recovery mode (holding power, bixby and up buttons), and I deleted the cache partition. After deleting the partition and selecting reboot, I immediately plugged the phone on the charger (fast charge was selected).
I let the phone get to 100% (without messing with it).
My settings are:
AOD off.
Android system background operation set to OFF.
Disable network data when wifi is on (from developer options settings).
Connected to 2,4GHZ wifi (not 5ghz).
The above are the main changes I have set to save battery. (I had these settings also before I did the above trick).
All the rest settings are normal. Normal white theme, synchronization is ON, GPS accuracy is set to high etc. I use FB, G+, Messenger, Youtube a lot.
I don't know why and how, but the battery life seems to have boosted a lot. And this is due to the standby time which now is extremely minimal.
I managed to get 8 hours of SOT(!) which I have never seen before in all the the months I own the phone. Not even near that SOT.
I am not saying that this is the solution to all the exynos battery problems. I just thought I should post this so you can try it.
I really hope that it helps you too.
Click to expand...
Click to collapse
Hey, (Γεια σου μεγαλε!)
Ι also have a s9+ unlocked.
I'm on the november security patch and battery life is pretty mediocre.
I get high standby battery drain, probably form android system.
I have never achieved sot of more than 5 hours and 10 minutes maybe!
Can you share your experience with this update?
Have you tried this trick on the latest security patch?

Related

[TIPS - UPDATED 14/06/11!] Improve your battery life!

Turn off 3G, turn on only when needed
Settings -> Location -> Untick ''Wireless Networks and GPS Satelites''
Settings ->Accounts -> Untick Background data (Unless you want to use market)
Settings -> Wirelless -> Advanced -> Wifi sleep policy -> Never
Use phone on 2G, unless using internet (then switch to 3G mode)
Data traffic always OFF (Use only when needed)
Backlight low or Auto Brightness (And allow light to decrease)
Turn off wireless, basically everything turned off with the power control widget, turn on when necessary
Install task manager and set auto-kill mode to crazy on switch off screen mode (Put apps that always run in ignore list e.g. Launcher, Messaging. Basically the necessities)
Install SetCPU (After rooting your phone) - Min CPU 122mhz, Max CPU ~700mhz - 'On demand' profile
SetCpu - Profiles -> Screen Off -> Min 122mhz, Max 122mhz, Performance mode
Upgrade to Froyo 2.2 - Enable JIT (Saves battery on 2.2+)
Switch to a Cyanogenmod Rom
Enable undervolting (Only for CyanogenMOD roms)
Use RenderFX widget (CyanogenMOD, best to use low red, best to use when you are heading out)
Cyanogenmod - Spare Parts -> End Button Behaviour -> Go to sleep
LAST, but NOT LEAST, if you notice no significant increase in battery life, then your battery is no calibrated right! So go to market, download 'Battery Calibration', and charge your phone to 100%. Next, if its abbout 4000v - 4200v, your phone is correctly calibrated!
If its not 4000 -4200, press the ''calibrate'' button, and let your phone die out, then fully charge it (while its still powered off). Wait till light is green, TURN ON.
After boot, battery will not be 100% yet, reboot once more, charge to 100% (while phone is on), and check your new calibrated battery! It should now be 4000 to 4200v
I know there might be programs and applications to increase your battery life, but I dont have any experience with these, so feel free to post your experiences! Some examples may include juicedefender, etc
Anyone wants to add to this list, feel free =)
royalbloodvi said:
Turn off 3G
Backlight low
Turn off wireless, basically everything turned off with the power control widget
Install task manager and set auto-kill mode to crazy on switch off screen mode
I know there might be programs and applications to increase your battery life, but I dont have any experience with these, so feel free to post your experiences! Some examples may include juicedefender, etc
Anyone wants to add to this list, feel free =)
Click to expand...
Click to collapse
I will never install a task manager it's do more damage then it does good.....
My battery last 2 days and the only thing i do is install juicedefender and use my phone alot
knudsen81 said:
I will never install a task manager it's do more damage then it does good.....
My battery last 2 days and the only thing i do is install juicedefender and use my phone alot
Click to expand...
Click to collapse
I don't know what goes wrong, but mine losts for only one day. If i have charged it overnight the battery is empty the next evening
No task managers. The phone manages its RAM well and the battery will last longer. For normal uses upto 1.5 days and for heavy users 1 day.
dabulcke said:
I don't know what goes wrong, but mine losts for only one day. If i have charged it overnight the battery is empty the next evening
Click to expand...
Click to collapse
and here I heard installing juicedefender does more damage than good too.. what to believe? Everything is based on peoples hearsay and no evidence..
On my girl friends X10 mini I changed from ADW launcher to Helixlauncher and changed the brightness to auto. That made a HUGE difference.
Was on vacation and turned off 3G because I was not gonna use any expenisve data. That alone boosted my batterylife about 1 days worth.
junglepunk said:
Was on vacation and turned off 3G because I was not gonna use any expenisve data. That alone boosted my batterylife about 1 days worth.
Click to expand...
Click to collapse
people can do much to boost battery time, like turn off 3g, brightness control, turn off gps and so on, that all helps the battery
I have switched of almost everything and still get about 1 day of battery with about 2-3Hrs of music and a few calls and videos.
is it ok?
I get over 48 hours and I use the wifi a lot and do about 30mins of calls a day.
My tips:
* turn background data off and manually update ur emails when u want - this is the best tip I put it on my blog too
* manually enable network data when u need it
* use the top button to go on standby as soon as you are done using the phone
* keep gps, 3g and wifi off unless u want to use it
Sent from my U20i using XDA App
I have background data off.
No emailing whatsoever till now....
Almost 75% of the time in standby
Gps 3G wifi bluetooth are off.
Yet with stock launcer i get 24Hrs
Helix 30Hrs..
Why?
Its been two weeks(or 3) since i bought the phone...
Please reply.
BTW when did you buy the phone?
^^Ok.
I have come to know the problem.
Running any apps in background like Battery Indicator or task manager brings down the battery so much(the latter not much though)..
Because daily i used to get the above with battery indicator pro on.
But after uninstalling it i got about double that battery life..
So people better don't run them all the time.
task manager can be used sometimes about once every 2 hrs o so.
This increased my battery life so much on stock launcher
Just got the pro today. Will be ditching my X2 depending on the performance of this one after a week. So far, I love the mini pro for the fact that I can now hear my incoming messages and calls!
A couple of questions though:
1) Is there a way to wake up the screen when an SMS arrives?
2) Custom ringtone per contact?
3) Is there a way to disable screen lock when the phone goes to sleep by itself (not pressing the power button) ?
4) Is there a way to unlock the screen without the need to press the left button, I was hoping to go directly to the pattern unlock after i turn on the phone
Still getting used to the keyboard lay-out as I've been using X2 for almost 6 months.
andoy said:
1) Is there a way to wake up the screen when an SMS arrives?
Click to expand...
Click to collapse
I use Chomp SMS app and this allows the screen to wake-up, I think Handcent SMS does too. I never used the stock SMS app so not sure if there is a way to do it with that.
andoy said:
3) Is there a way to disable screen lock when the phone goes to sleep by itself (not pressing the power button) ?
4) Is there a way to unlock the screen without the need to press the left button, I was hoping to go directly to the pattern unlock after i turn on the phone
Click to expand...
Click to collapse
Not sure if this answers your question, I just press the Menu button twice to unlock the phone, never used the power button to wake it up funnily enough, only used the power button go in to sleep mode. When I press Menu button it wakes up to the pattern unlock.
ayewhy said:
I use Chomp SMS app and this allows the screen to wake-up, I think Handcent SMS does too. I never used the stock SMS app so not sure if there is a way to do it with that.
Not sure if this answers your question, I just press the Menu button twice to unlock the phone, never used the power button to wake it up funnily enough, only used the power button go in to sleep mode. When I press Menu button it wakes up to the pattern unlock.
Click to expand...
Click to collapse
Nice, i'll try to look for those apps. I did try the menu button and it worked. At least this relieves stress on the power button since I won't be using it to wake-up the phone anymore.
How's about not locking the phone when it goes to sleep? Unless I press the power button?
After a day with it, battery is now @ 30%+. Hope it improves or SE comes out with a high capacity.
Hi, where is the disable 3G button?
I can't seem to find it. I found wifi on and off.
and I unchecked location with gps.
thanks
Helix launcher is the best thing I installed to my mini pro. Batt life is now 3-4 days regular use and 5 days if i don't play games. Games are draining the batt quickly.
I'm totally getting rid of my X2.
3 to 4 days? Lol how can that be possible.. Did you use 3g?
hyhyhhy said:
3 to 4 days? Lol how can that be possible.. Did you use 3g?
Click to expand...
Click to collapse
I can prove it, there's a display in the phone where it says # of hours unplugged. If it's not working for you, doesn't mean it shouldn't for others as well. If you barely make 2 days, then that's what we should be LOLing about.
My setting is as follows:
- 2g only
- 1 to 2 hours of wifi and bluetooth per day
- 1 to 2 hours of games (love the games) per day
- tried GPS for 1 hour using mapdroyd
- a couple of calls and text messages per day
- tried watching a movie (AVI) for an hour using yxflash
- tried the media, played MP3s for an hour
- tried meebo for an hour
- I got my alarms ON always
- notifications ON always
- custom led lights for new SMS (using ringo pro) always
- max volume for the entire day
- medium volume at night
- data connection off
- background data off
- screen brightness to zero but the sensor is still working (weird), the screens still adjusts to the surrounding
This is after installing helix. Before helix, I got a max of 1 and a half days only.
Ray_jai said:
Hi, where is the disable 3G button?
I can't seem to find it. I found wifi on and off.
and I unchecked location with gps.
thanks
Click to expand...
Click to collapse
Im finding the same issue. Im looking for the "use only 2g" as found on the g1 (my other phone) but I can find it. Some help would be excellent on locating this option!!
~Dark

Long Battery Life Fixed for all ROMs

Think I have a solution for short battery life for Nook! (Really for any android device)
The problem has been that the Nook Tablet does not go to a Deep sleep (even if they say its fixed its not). Every night I have to charge the Nook battery because it goes from 100% to 90% overnight. If the Nook sits all day with no use the battery will drop to 85%. Almost a 20% decrease in power in one day of no use. By the second day battery is down to 50% and forget it if I use the Nook.
This app seems to solve the problem!
I downloaded a free app (Google App store) called “CPU Tuner (rooted phones)” you need to be rooted but for most of us here this is not an issue.
This app allows you setup CPU speed, WiFi and other settings for different states the Nook may be in.You can setup several triggers but I only used 1. The problem is not just having the Nook go into Deep Sleep but to turn off other functions that hit the battery e.g. WiFi and sync. With this app you are able to tell the Nook to go into Airplane mode as well as turning off all other features that may consume battery life. Below is my setup and findings.
State 1: “On Power (Plugged in)” WiFi on, Sync on, airplane mode off and CPU set to 1020mhz Governor set to interactive
State 2: “On Battery” WiFi on, Sync on, airplane mode off and CPU set to 1020mhz Governor set to interactive (same as above)
State 3: “Screen off” WiFi off, Sync off, airplane mode on and CPU 600mhz Governor set to conservative
State 4: “Screen Lock” WiFi off, Sync off, airplane mode on and CPU 600mhz Governor set to conservative (Same as above)
With these settings (and having 3 nooks with CM10 to test) here are my numbers
test stared around 10pm
Nook 1 started with 76% batt (CPU Tuner not installed)
Nook 2 started with 85% batt (CPU Tuner not installed)
Nook 3 started with 90% batt (CPU Tuner installed)
checked battery life at 8am next morning.
Nook 1 65% batt
Nook 2 75% batt
Nook 3 91% batt (Yes it went up 1%)
Later in the day with no use 8pm still 91%
Loaded CPU Tuner on all three Nooks started test at 10pm. (Day 2)
Nook 1 started at 96%
Nook 2 started at 74%
Nook 3 started at 83%
Checked battery life at 8am next morning.
Nook 1 ended at 96%
Nook 2 ended at 75%
Nook 3 ended at 83%
As you can see this is a big difference then losing 20% power overnight. Since I have Screen Off and Screen Lock as the same trigger I don’t lose power if I am just checking batt level or the time.
This is a MUST HAVE APP. easy to setup and makes a big difference.
You can also setup it up so that if you are on the battery the CPU is at 1008mhz which will save battery life while in use and when plugged in CPU can go to 1020mhz giving you full power.
Sorry for such a long post but I felt it was good info for the users.
Webmaven
webmaven said:
Think I have a solution for short battery life for Nook! (Really for any android device)
Click to expand...
Click to collapse
Terrific recommendation. Was easy to set up and works like a charm. No more finding my Nook with a flat battery after ignoring it for a couple of days.
Gracias! :good:
Thank you for the tip! I will make a note of it so I can use it if/when I need it! It seems very handy to be able to set upp different user schemes!
However, I do not agree with this comment:
webmaven said:
The problem has been that the Nook Tablet does not go to a Deep sleep (even if they say its fixed its not).
Click to expand...
Click to collapse
I do know it's a problem in some ROMs, and often a problem along the way during development. I think it's grocely unfair to suggest it's a general problem though.
I'm running a CM10 build from 1231 and I have not problems what-so-ever with battery life! I hardly loose anything while on standby (wifi off). I do turn it off manually, and I understand that with this app I can have it done automatically which is very neat, so might use it because of that. The processor speed adjustments works just fine anyway in the ROM i use.
It's great to know this thing exists and does work if I want to try a "work in progress" ROM more extensively. So once again :good:
The "battery-drain while asleep" problem got fixed since early December (e.g., Succulent's v12/08 build).
Also, I simply turn off WiFi (using a WiFi on/off widget) when I am not accessing Internet, and my NT's battery consumption while asleep has been well below 1% a day (comparable to that of my Google N7).
Finally, for those who are interested in battery consumption management tools, I find Battery Juice Defender (which I use on my Samsung GS-II phone) reasonably effective yet easy to use.
Sorry it was not meant to be a dig or insult!!!
I love ALL of the work that the developers have done and I think I have changed my ROM about a half a dozen times because I can't figure out which one I like best. But compared to my wife's Nook with just the B&N ROM her battery could last days where my battery only lasted 1 day.
Please; I did not mean anything insulting with the comment and the fact that these developers can put together such solid ROMs is saying something about their skills.
How I found this App was from posts here where users were saying that they had to turn off WiFi. Trying to make a WA or KA (WA = Wife Approved and KA = Kid Approved) I know that going in and turning on and off WiFi was never going to happen.
When installed the CPU Tuner and found that it was going to do this automatically and on top of this battery life goes from 1 day to several days I had to make a comment. Only after a few days of my kids using the Nook with the CPU Tuner they made comments about how long the battery lasted. Using these ROMs and CPU Tuner made the Nook 100% WA & KA and now wife is using Nook with the Hashcode ROM and I have heard no complaints. Happy wife, happy life.
Again sorry
Can you post screenshots of your settings from the start, there are some things in your OP that i can't get to setup for testing purposes, indeed the battery of my nook using @succulents ROM 4.1.2 final drains battery considerably while sleeping.
~ V
CPU Tuner Screen Shots
lavero.burgos said:
Can you post screenshots of your settings from the start, there are some things in your OP that i can't get to setup for testing purposes, indeed the battery of my nook using @succulents ROM 4.1.2 final drains battery considerably while sleeping.
~ V
Click to expand...
Click to collapse
V;
I have uploaded the screen shots. All settings can be changed after loading so if you select the wrong item its not a problem.
I try to keep it simple, You can have more then 1 configuration but as you can see I just use 1. I set my user experience to Normal which can be changed in the settings.
Once you start CPU tuner you will see the current state of the Nook. You can select a different state. (Note the battery was at 52% which has been at 52% for about 2 days and just charged it this morning.)
Next you will see triggers; here you set what Profiles you want for different states of the Nook. Just tap in that section. I forgot to take a screen grab. But I have battery at 100, "On Battery" = Normal, "Screen Locked" = Powersave, "Screen Off" = Powersave and "On Power" = Performance. "Battery Hot" = Powersave and "Call in progress" = Performance. I really only need two profiles Performance and Powersave my Normal has the same settings as Performance and my Screen Off (which I don't use) has the same setting as Powersave.
Next are the profiles. tap the profile you want to edit. See screen shot 7-10 these images have my profile settings. I don't trust airplane mode to really shut off all that I want off so I make sure that things I want disabled are disabled and when I go into Performance I disable airplane mode and enable WiFi (Not sure what Background Sync is or if it even works on the Nook most times I keep it off especially for the "Screen Off" and "Powersave" profiles)
For the governors I leave it as interactive for "Full Speed" and "Normal" settings and conservative for "Save Battery" and Extreme Save Battery these may be the default I am not sure.
If I wanted to really go crazy. I could set my Normal CPU speed to 1008mhz to save battery life while on battery. I could also setup it up that if I have 100% battery use Performance Profile and when the battery level drops to 70% use Normal profile (with CPU at 1008mhz) and when the battery goes to 60% then create a new profile which lowers the CPU speed even more. But with my current setup I am very happy and the fact that after a few days of no use the Nook still has the same power level from when I last had it on.
That's about it. If you have any questions let me know.
Webmaven
Is there any way to delay (eg I want it to wait 5 min before turning the WiFi off)? Or should I use tasker or automateit for something like this?
Sent from my NookTablet using xda app-developers app
larrycl said:
Is there any way to delay (eg I want it to wait 5 min before turning the WiFi off)? Or should I use tasker or automateit for something like this?
Sent from my NookTablet using xda app-developers app
Click to expand...
Click to collapse
You can setup a profile where if you press the power button the CPU speed is reduced and turn off all features except WiFi. I believe that after 5 minutes (or what ever time you have set for "Sleep" I believe the default is 2 minutes) the Nook will go to sleep and all features for Sleep will take over e.g. No WiFi.
This will give you two Power options:
1. let the Nook go to sleep on its own after 5 minutes (Screen would be on during this time killing battery life)
2. Press the power button and screen turns off but WiFi is still on and after 5 minutes sleep all features off.
You can monitor what it's doing by pressing the power button and waiting about 6 minutes. Then go to the CPU Tuner log (shift pages to the left until you see the log page) What you would want to see is the following:
11:08am ALL-> Performance
11:07am All-> Powersave
11:01am All -> Screen Off
11:00am ALL-> Performance
Please note that since the time is only shown as hours and minutes it possible to see settings with the same time stamp.
Good Luck.
If you have any questions please let me know.
Fantastic, exactly what I am looking for :good:
I must say that the OP was very good, and CPU Tuner is a great app ....
but times, and apps move on.
currently I use the free "Battery Doctor" from Google Play which does what Tuner can do, but in a much user friendlier way.
my tablet only loses 1 to 2% overnight and still has 80% or so left if not used for a few days.
the developer also has a great file cleaner utility which i also use, and the Task Killer, and memory cleaner widgets you get.
in my opinion they are MUST have's, and I no longer even use the paid version of Juice defender that was my favorite app.
carkev said:
I must say that the OP was very good, and CPU Tuner is a great app ....
but times, and apps move on.
currently I use the free "Battery Doctor" from Google Play which does what Tuner can do, but in a much user friendlier way.
my tablet only loses 1 to 2% overnight and still has 80% or so left if not used for a few days.
Click to expand...
Click to collapse
I'm running CM11 Snapshot M3 and haven't been able to find a user friendly way to automatically get wifi off during sleep.
The built-in "turn off wifi during sleep" setting does not seem to be working.
Battery Doctor (Battery Saver) doesn't seem to work well on this ROM. After installing, it would seem to let me change the screen brightness (the slider would move), but then it would revert back to 20%. The app then crashed, and attempting to run it again after rebooting results in a black screen of death.
I've tried a couple other apps like WiFi Auto-Off and Advanced Battery Saver - Free, and neither succeeded in shutting off wifi during sleep.
Granted, I did not try CPU tuner with this ROM. I've tried it in the past and found it very unfriendly.
Anyone have a user friendly method to automatically get wifi off during sleep on CM11?
InUrKitchin said:
Granted, I did not try CPU tuner with this ROM. I've tried it in the past and found it very unfriendly.
Click to expand...
Click to collapse
I decided to give CPU Tuner another shot and it seems to work some of the time. I haven't been able to figure out what the difference is between the times it works and the times it doesn't.
InUrKitchin said:
I decided to give CPU Tuner another shot and it seems to work some of the time. I haven't been able to figure out what the difference is between the times it works and the times it doesn't.
Click to expand...
Click to collapse
I just use the available quick toggles in CM11 to manually (1) switch off WiFi and (2) go to sleep.
Yes, there is a quick toggle for go to sleep.
I've pretty much have gave up on ever having great battery life on my Nook. Just the nature of the beast Still a great little tablet
Since all those apps automate disable wi-fi when system sleeps and you won't get any notifications if android apps. try to poll data from internet, I just set wi-fi to automatically turn off in android wi-fi advanced menus, there is no need of any of those apps since android system can do the same thing.
Nookt Tablet goes Nuts less than 50% Battery
Currently running CM 11 snapshot 5
Whenever my nook gets below 50% battery it goes nuts. apps open themselves, then shut down, windows open, if I am watching a video it stops then begins at the beginning. Weird.
Have had this issue before and was hoping with the upgrade it would stop, but no dice.
Help?
NoEnuf4Trbl said:
Currently running CM 11 snapshot 5
Whenever my nook gets below 50% battery it goes nuts. apps open themselves, then shut down, windows open, if I am watching a video it stops then begins at the beginning. Weird.
Have had this issue before and was hoping with the upgrade it would stop, but no dice.
Help?
Click to expand...
Click to collapse
I have the same issue with my Nook Tablet. I will get to about 43% and it flips out. Apps opening, settings opening, Apps close, airplane mode comes, etc. I have to plug it back in to undo the mess and continue using it. I've had this issue with AndoidForNook's builds as well as the CM-acclaim 10.2.1 build.
Sent from my K00C using XDA Premium HD app
SonjaMichelle said:
I have the same issue with my Nook Tablet. I will get to about 43% and it flips out. Apps opening, settings opening, Apps close, airplane mode comes, etc. I have to plug it back in to undo the mess and continue using it. I've had this issue with AndoidForNook's builds as well as the CM-acclaim 10.2.1 build.
Sent from my K00C using XDA Premium HD app
Click to expand...
Click to collapse
Thanks, glad to know it's not just me and I don't have a real "ghost in the machine". I use my Nook on the train everyday, couple times a week I have to pull out an external battery to keep it going.
Using grrenify apn +cpu tuner
Sent from my A110Q using XDA Premium 4 mobile app

BetterBatteryStats not working

Hi. I recently got this phone and I am having some issues. I'm on latest Global Dev (6.11.3 Beta). Battery life is good (around 8 h of SOT), although I think it's consuming too much when screen is off (went to sleep with 20% and battery was dead when I woke up).
I was trying to install BetterBatteryStats (from XDA) and it's not working. After installing I get a white blank screen for around 15 seconds and then a toast message (Fallback to "Since boot") and the "Computing..." message with the interface grayed out in the background. But it doesn't do anything else.
I tried giving BBS all permissions possible in case that was the problem, but no luck.
Any ideas? Thanks.
Make sure you turn off wi-fi or mobile data whatever. You can also set automatic battery saver from security/battery/battery saver
Adarsh2000 said:
Make sure you turn off wi-fi or mobile data whatever. You can also set automatic battery saver from security/battery/battery saver
Click to expand...
Click to collapse
Thanks. I know I can do those things. But why am I having this problem with Better Battery Stats? Is it working for you? Can you try if not? Link here.
Did a clean reflash. It's working now.

Any way to turn off data when screen is off? Battery saving tips?

Hi Guys,
battery life is super important for me because i am all day outside. I had an asus zenfone 3 zoom before (5000mah battery, total beast with 7-10 hours SOT). The asus had a battery saving mode that would "turn off data after screen goes off".
This mode was perfect for me, because the phone was working normal when i use it, and when it lock it, it drains almost zero battery, no background activity (its like being in airplane mode). I wonder if there is any way to do the same with the Mate 10? Any workarounds or suggestions?
With the mate 10 i notice that there is a lot of battery drain when the screen is off. If i go to sleep i will lose 15% the next morning.
I dont like the normal battery saving mode of the mate 10 because it makes the phone slower when im using it, and whatsapp messages/emails dont come through unless i open the app manually, which is annoying. So its not a solution i can use all day.
Any other tips are welcome.
My Mate 8 had this under in the power management tab in the phone manager app. My Mate 10 arrived today, I'll inbox it later and check. 15% drain is excessive, most are reporting 0 to 1% drain.
Ok let me know
Sorry for the late reply, got too carried away testing my new phone
Go to the Phone Manager App, click on the battery symbol in the left bottom corner, then click on the settings icon. The settings icon is in the top right hand corner. There you will see the options to disable mobile data and wifi during sleep.
Install "Brevent" from playstore and set it up using ADB (if you r not rooted)
Will help to boost your batt throughout the day

Does Android Doze work differently on the S9+?

With my Note 4, it would wake up from Android Doze, or simply not enter that state if there was movement of the phone. I felt stupid needing to pick up my phone every 10 min to give it a small shake, but at least it seemed to work. I keep my phone in my pocket when I'm working outside and that always kept the Note 4 from falling into Doze mode. Not so with the S9+. It drops into Doze even in my pocket. Anyway to stop that from happening? Like others here, I feel frustrated needing to activate my screen to find out if there are notifications.
Brokk said:
With my Note 4, it would wake up from Android Doze, or simply not enter that state if there was movement of the phone. I felt stupid needing to pick up my phone every 10 min to give it a small shake, but at least it seemed to work. I keep my phone in my pocket when I'm working outside and that always kept the Note 4 from falling into Doze mode. Not so with the S9+. It drops into Doze even in my pocket. Anyway to stop that from happening? Like others here, I feel frustrated needing to activate my screen to find out if there are notifications.
Click to expand...
Click to collapse
That's not Doze mode. Doze is when Android puts apps to sleep that are in memory not being used. This is done to save battery (and processing time?).
So what is happening here, if I understand, is that your phone display is going blank when you pull it from your pocket?
Scott said:
That's not Doze mode. Doze is when Android puts apps to sleep that are in memory not being used. This is done to save battery (and processing time?).
Click to expand...
Click to collapse
Doze was originally described as putting your phone into a power saving sleep mode after 20 min of "inactivity". The issue that caused me problems back then was not about the apps, but that notifications pushed to the device were queued up by the system until your phone "woke up", then the notifications would come rolling through. This happened at the system level regardless of app.
Perhaps in the latest version of Android they have changed the definition of Doze, but another poster was having a lot of issues with notifications (mostly email) and the culprit was deemed to be Doze.
Scott said:
So what is happening here, if I understand, is that your phone display is going blank when you pull it from your pocket?
Click to expand...
Click to collapse
No. My display is blank (as it should be) when I put it into my pocket, as well as when I pull it out. I always shut the screen off before putting my phone down, or in my pocket.
If I put my phone in my pocket, and 5-10 min later I get a notification, it comes through loud and clear and I pull my phone out and check it. If 20+ min has gone by without me having a reason to turn the screen on, then I stop getting notifications. When I pull it out to check the time or send a message, suddenly the notifications come rolling through.
Again, I was used to this if the Note 4 was put down, but this behavior is new to me if the phone is moving about.
Brokk said:
Doze was originally described as putting your phone into a power saving sleep mode after 20 min of "inactivity". The issue that caused me problems back then was not about the apps, but that notifications pushed to the device were queued up by the system until your phone "woke up", then the notifications would come rolling through. This happened at the system level regardless of app.
Perhaps in the latest version of Android they have changed the definition of Doze, but another poster was having a lot of issues with notifications (mostly email) and the culprit was deemed to be Doze.
No. My display is blank (as it should be) when I put it into my pocket, as well as when I pull it out. I always shut the screen off before putting my phone down, or in my pocket.
If I put my phone in my pocket, and 5-10 min later I get a notification, it comes through loud and clear and I pull my phone out and check it. If 20+ min has gone by without me having a reason to turn the screen on, then I stop getting notifications. When I pull it out to check the time or send a message, suddenly the notifications come rolling through.
Again, I was used to this if the Note 4 was put down, but this behavior is new to me if the phone is moving about.
Click to expand...
Click to collapse
I concur. Same happens to me.
I don't have this issue at all. I have my phone in my pocket most of the day and don't need to "wake" the phone up for notifications. I can leave my phone unattended for hour or 3 and it still receives the notifications without issues. I don't know if I have turned on a setting that mine works different, but I must say that my battery life isn't that great....as if the phone never sleeps/doze at all
termdj said:
I don't have this issue at all. I have my phone in my pocket most of the day and don't need to "wake" the phone up for notifications. I can leave my phone unattended for hour or 3 and it still receives the notifications without issues. I don't know if I have turned on a setting that mine works different, but I must say that my battery life isn't that great....as if the phone never sleeps/doze at all
Click to expand...
Click to collapse
I'm curious. Do you have any of the power saving modes turned on? Do you use "always on display"?
I never use the power save modes. Aod is on from 5 in the morning till 8 at night
termdj said:
I never use the power save modes. Aod is on from 5 in the morning till 8 at night
Click to expand...
Click to collapse
AoD could be keeping your phone awake, preventing Doze. The power saving features talks about putting apps to sleep, so unless you use them, that could also be disabling Doze. I could try changing the power saving settings, though it seems like a shame. I have zero interesting in AoD for multiple reasons, so it's not worth it for me to use that to solve my problems.
Thanks for the information!
Doze changed in Nougat, I believe, so that motion no longer prevented Doze from working. Since most men, at least, carry their phone in their pocket Doze hardly ever kicked in, greatly limiting its power saving capability.
You can exempt specific apps from Doze if you want to get notifications from them even when dozing.
Settings / Apps / 3 dot menu / special access / Optimize battery usage. Select All Apps from the drop down. Turn off the toggle for any apps you don't want to Doze.
Brokk said:
Doze was originally described as putting your phone into a power saving sleep mode after 20 min of "inactivity". The issue that caused me problems back then was not about the apps, but that notifications pushed to the device were queued up by the system until your phone "woke up", then the notifications would come rolling through. This happened at the system level regardless of app.
Perhaps in the latest version of Android they have changed the definition of Doze, but another poster was having a lot of issues with notifications (mostly email) and the culprit was deemed to be Doze.
No. My display is blank (as it should be) when I put it into my pocket, as well as when I pull it out. I always shut the screen off before putting my phone down, or in my pocket.
If I put my phone in my pocket, and 5-10 min later I get a notification, it comes through loud and clear and I pull my phone out and check it. If 20+ min has gone by without me having a reason to turn the screen on, then I stop getting notifications. When I pull it out to check the time or send a message, suddenly the notifications come rolling through.
Again, I was used to this if the Note 4 was put down, but this behavior is new to me if the phone is moving about.
Click to expand...
Click to collapse
Yes, I am confusing Doze with the Samsung power saving options. Blah!
I know the battery life will decrease with aod, but I have noticed that even without aod on my battery drop 2% per hour, so I leave it on...There are days that I can go 1 day and 8 hours before charging, but then my sot is only 2 hours....In general I'm happy with the battery life
meyerweb said:
You can exempt specific apps from Doze if you want to get notifications from them even when dozing.
Settings / Apps / 3 dot menu / special access / Optimize battery usage. Select All Apps from the drop down. Turn off the toggle for any apps you don't want to Doze.
Click to expand...
Click to collapse
Thanks!
It seems oddly redundant needing to do essentially the same thing in two places. One well advertised under the battery settings, and the other one hidden under settings/apps/special access.
Hopefully this will fix my problems. Glad to know there is a work around.
Brokk said:
Thanks!
It seems oddly redundant needing to do essentially the same thing in two places. One well advertised under the battery settings, and the other one hidden under settings/apps/special access.
Hopefully this will fix my problems. Glad to know there is a work around.
Click to expand...
Click to collapse
The two settings really are doing different things. Samsung's (in the battery settings), puts apps to sleep after 3 to 7 days (depending on your settings). The won't wake up again until you use them. Doze (the pretty much hidden option in Apps), lets the apps wake up on their own, when you start using the phone, even if you don't access those particular apps.
I'm not sure why the Doze setup is buried so deep in settings, though. I guess Google (or Samsung?) really doesn't want you interfering with it.
meyerweb said:
The two settings really are doing different things. Samsung's (in the battery settings), puts apps to sleep after 3 to 7 days (depending on your settings). The won't wake up again until you use them.
Click to expand...
Click to collapse
I made a mistake of putting an app to sleep that I use to keep my screen awake. It uses a widget to toggle it on/off, but will shut off along with the screen if you intentionally shut your screen off. After putting that app to sleep, the widget stopped working. I had to go find the actual app, start it, then quickly flip back to my home screen and click on the widget. I couldn't undo my "sleep" action on that app. I changed it to "unmonitored", so that the S9+ would never put it to sleep. I rebooted. I shut off the power saving options. Nothing worked. Everytime I would go to the widget (unless I just started the actual app), it wouldn't react to clicking on the widget.
I finally gave up and uninstalled the app from my phone. Rebooted. Reinstalled it and now it works fine. So I'm not sure I agree with "puts the app to sleep in 3 to 7 days". Maybe 3-7 minutes...
Well, 3 to 7 days is what Samsung says, and the optional range you can set in the app. Don't know what specifically happened with that widget, though.
meyerweb said:
Well, 3 to 7 days is what Samsung says, and the optional range you can set in the app. Don't know what specifically happened with that widget, though.
Click to expand...
Click to collapse
Where is the setting(s) for optimal range? I don't remember specifying that. I thought it was more of an on/off thing. White listed (unmonitored resource consumption) or black listed (never let it run in the background). Then apps in neither list it reports to you and you can force them to sleep or not.
Brokk said:
Where is the setting(s) for optimal range? I don't remember specifying that. I thought it was more of an on/off thing. White listed (unmonitored resource consumption) or black listed (never let it run in the background). Then apps in neither list it reports to you and you can force them to sleep or not.
Click to expand...
Click to collapse
Samsung does bury things....
Settings / Device maintenance, click Battery at the bottom.
Then click the 3 dot menu at the top, and Advanced Settings.
Tap App power monitor (the text, not the toggle).
Tap Put unused apps to sleep (again, the text).
You can set the slider anywhere between 3 days and 7.
I spent several days just wandering through every settings option I could find after I setup the phone. Discovered all kinds of hidden things. Sometimes I can even remember where I saw them.

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