help with battery life - HTC EVO 3D

PLEASE
tell me the best ways to make a long battery life
I cant even reach 4 hours on full-charged battery
P.S: my evo is GSM ... not CDMA

joanjoan_10 said:
PLEASE
tell me the best ways to make a long battery life
I cant even reach 4 hours on full-charged battery
Click to expand...
Click to collapse
Put your phone down every now and then...
Seriously, if you're only getting 4 hours, and you're using it moderately, then you need the battery replaced. Take it to Sprint, or call them and they should ship you a new one.
Otherwise, try a few of these things
Turn off 4G (If you have it on all the time, it'll burn your battery QUICK!)
Turn off GPS (Only use it when you need it. That's why the switch is convenient)
Put your screen on Auto-Brightness (Menu > Settings > Display > Brightness. Then check Automatic Brightness)
Make sure you have good signal (I've had this problem with ALL my phones. If you don't have a strong signal where you are, your battery will die quickly from searching all the time. Happens to me everytime I go to the Amway Center for Magic games. I just turn off my mobile network, or turn Airplane Mode on.)
Don't use Live Wallpapers (Even when your phone is sleeping, it's still running and will kill your battery.)
Check for a new kernal (If you're rooted, and you're running a custom ROM, then try using a kernal that will save your battery. Can anyone else recommend a good one?)
And one more thing, games will kill your battery quick (Some I've noticed are Words with Friends and Angry Birds)

really? 4 hours? that seems very low. most of us can go a full day with no problems - medium to moderate use.
try this.. for now..
turn off background data, auto sync
turn off all network location settings
navigate to settings>wireless and networks>mobile networks... uncheck the box that says "always-on mobile data"
turn off blue tooth if it is still on
turn off auto-brightness and set a pre-defined brightness level... set the slider just under 1/4 up - so about 20%
you will see significant battery increase. if you don't, you have another issue, but we'll cross that road later if need be. also, how much do you use your phone?
---------- Post added at 09:25 AM ---------- Previous post was at 09:23 AM ----------
i wouldn't jump to any conclusions about the battery being defective just yet. it could be a wakelock issue from an app... but again, we'll look into that later. one step at a time here

cobraboy85 said:
really? 4 hours? that seems very low. most of us can go a full day with no problems - medium to moderate use.
try this.. for now..
turn off background data, auto sync
turn off all network location settings
navigate to settings>wireless and networks>mobile networks... uncheck the box that says "always-on mobile data"
turn off blue tooth if it is still on
turn off auto-brightness and set a pre-defined brightness level... set the slider just under 1/4 up - so about 20%
you will see significant battery increase. if you don't, you have another issue, but we'll cross that road later if need be. also, how much do you use your phone?
---------- Post added at 09:25 AM ---------- Previous post was at 09:23 AM ----------
i wouldn't jump to any conclusions about the battery being defective just yet. it could be a wakelock issue from an app... but again, we'll look into that later. one step at a time here
Click to expand...
Click to collapse
That or the rom and kernel combo he is using lol....

eXplicit815 said:
Put your phone down every now and then...
Seriously, if you're only getting 4 hours, and you're using it moderately, then you need the battery replaced. Take it to Sprint, or call them and they should ship you a new one.
Otherwise, try a few of these things
Turn off 4G (If you have it on all the time, it'll burn your battery QUICK!)
Turn off GPS (Only use it when you need it. That's why the switch is convenient)
Put your screen on Auto-Brightness (Menu > Settings > Display > Brightness. Then check Automatic Brightness)
Make sure you have good signal (I've had this problem with ALL my phones. If you don't have a strong signal where you are, your battery will die quickly from searching all the time. Happens to me everytime I go to the Amway Center for Magic games. I just turn off my mobile network, or turn Airplane Mode on.)
Don't use Live Wallpapers (Even when your phone is sleeping, it's still running and will kill your battery.)
Check for a new kernal (If you're rooted, and you're running a custom ROM, then try using a kernal that will save your battery. Can anyone else recommend a good one?)
And one more thing, games will kill your battery quick (Some I've noticed are Words with Friends and Angry Birds)
Click to expand...
Click to collapse
I was using unity kernel for GSM
somebody reviwed this kernel and sayed that it takes 1% of battery every 70 minutes of idle
but for me ... in 70 minutes >>>. more than 2 %
I dont know what's WRONG !

This has given me very good results with all phones I've had:
I use Juice Defender and these are the settings I found that work for me. Of course I did some minor tweaking on these but in general this are optimal settings.
http://androidforums.com/nexus-s-4g/...ml#post3403944
I assure you you'll see wonders with your battery.
Props to mistermetaphor over at AF for the settings.

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

[Q] Battery Booster any good???

i am about to install BATTERY BOOSTER on my razr maxx.....i dont think my battery is as strong as they say, yes it last longer than most but i dont think its as strong as people make it out to be....any suggestions on this app ??
Haven't heard anything about this app. Juice Defender is usually the one that I hear the most about.
All they can do is turn off different things at different times... like the 3G/3G data. Juice Defender does what it claims, but at a cost. Turning on the screen to use the browser, there's a long pause before the data "wakes up". I deleted the app. I get 2 days of varied use from my Maxx and that's with the screen at full brightness, 4G on, Bluetooth on, and pretty much indiscriminate use of everything wasteful I can find.
I ran it for a while back on my Samsung Galaxy PLAYER 4.0, it was nice to have easy settting to trigger turning wifi, bluetooth and Airplane Mode on and off with locking and unlocking, but on that device I realized it was a complete waste for me because I could leave airplane mode on all the time on it and I only toggle wifi on if I need to use it right then, so really for the razr's its pretty pointless as most of what it does can be done with SMART ACTIONS, but it would give you a battery percentage and battery temp in your notifications if you like that sort of stuff.
If you want to max your battery and push notifications aren't that important to you use these settings in smart actions:
by default I have GPS off completely, on the rare occasion I need it I will turn it on manually.
I use one primary Smart Action and that is a reprogrammed "Battery Extender" with
TRIGGERS:
Screen Off
Charging (not charging)
ACTIONS:
Background Sync (Disable)
Cellular Data (Disable)
basically with these settings when the screen is off its equivalent to a "dumb phone", you can recieve calls and texts but no "push" notifications, this increased the time between charges by atleast 20% for me.
Also as I say in all these threads not forget to regularly (atleast every 2 weeks) power cycle (shutdown then reboot) your phone, I went like the first month of owning without ever shutting it off and when I got in the habit of doing this I noticed atleast a 10% increase in time between charge compared to never shutting off.
Screenshots of my last battery cycle below.
daniel644 said:
I ran it for a while back on my Samsung Galaxy PLAYER 4.0, it was nice to have easy settting to trigger turning wifi, bluetooth and Airplane Mode on and off with locking and unlocking, but on that device I realized it was a complete waste for me because I could leave airplane mode on all the time on it and I only toggle wifi on if I need to use it right then, so really for the razr's its pretty pointless as most of what it does can be done with SMART ACTIONS, but it would give you a battery percentage and battery temp in your notifications if you like that sort of stuff.
If you want to max your battery and push notifications aren't that important to you use these settings in smart actions:
by default I have GPS off completely, on the rare occasion I need it I will turn it on manually.
I use one primary Smart Action and that is a reprogrammed "Battery Extender" with
TRIGGERS:
Screen Off
Charging (not charging)
ACTIONS:
Background Sync (Disable)
Cellular Data (Disable)
basically with these settings when the screen is off its equivalent to a "dumb phone", you can recieve calls and texts but no "push" notifications, this increased the time between charges by atleast 20% for me.
Also as I say in all these threads not forget to regularly (atleast every 2 weeks) power cycle (shutdown then reboot) your phone, I went like the first month of owning without ever shutting it off and when I got in the habit of doing this I noticed atleast a 10% increase in time between charge compared to never shutting off.
Screenshots of my last battery cycle below.
Click to expand...
Click to collapse
What your screen shot shows is that you basically don't use your phone. I wouldn't be able to even get close to 10% screen time if I tried. Unless I just let the phone sleep all day.
can any of you guide me through these smart actions....because even after the help videos and all, i still dont really understand how the triggers and actions work....i dont think im getting nearly the battery time i should out of this phone.....i have to put it on the charger at least 2 or three times out the day for a little while and by 10-11 oclock its still down to about 30-40 percent....and im hearing people getting almost 2 days on a full battery...not me!! so please help
WizeGuyDezignz said:
What your screen shot shows is that you basically don't use your phone. I wouldn't be able to even get close to 10% screen time if I tried. Unless I just let the phone sleep all day.
Click to expand...
Click to collapse
I never made any claim to be a heavy user, when at work, home and where I go for my lunch break I use my Laptop, as I don't care to stare at a small screen if I don't need to, my phone is for like when i'm at walmart or somewhere and I need to look something up real quick.
But, for the record the smart action settings I listed will drop your overnight battery drain to like 1% every 3 hours or so which is really a huge boost to those that don't live starring at there phone day in / day out, nothing can help those people but rehab and counseling for there addiction issues, LOL (that was a joke don't get pissed off)
---------- Post added at 03:19 AM ---------- Previous post was at 03:09 AM ----------
blueizee said:
can any of you guide me through these smart actions....because even after the help videos and all, i still dont really understand how the triggers and actions work....i dont think im getting nearly the battery time i should out of this phone.....i have to put it on the charger at least 2 or three times out the day for a little while and by 10-11 oclock its still down to about 30-40 percent....and im hearing people getting almost 2 days on a full battery...not me!! so please help
Click to expand...
Click to collapse
OK, as simple as I can make this
1. open Smart Actions app
2. click View samples in lower right hand corner
3. click Battery Extender
4. press and hold on trigger labeled Motion Detector, when menu pops up choose Delete
5. Look for + sign just to right of the word Actions (in the middle of the screen), tap the + sign
6. Scroll to very bottom of list and tap Cellular Data, menu will pop up with 2 choices (enable, disable) tap disable
7. (Optional) press and hold GPS under actions, and when menu comes up hit delete
8. Tap Add Rule on bottom left hand side of screen.
your done and set with my settings, AGAIN with these settings your phone WILL NOT RECIEVE new email or other data related notifications while the screen is off, but it will reduce power drain to aproxx 1% every 3 hours while the screen is off (barring other apps running in the background I can't account for), your could also ADD a time trigger if you only wanted it to do it at night so the junk emails notifications don't wake you up.

Battery Draining So Crazy

Hi guys
My samsung galaxy s3 battery is draining freaking fast around 1% for every 3-4 minutes
I tried to reset the battery stats and monitor it using better battery stats and all but there is no wakelocks.
Is there any reason why am i having this trouble?
Is anyone else having the same trouble?
Feel free to share here.
[EDIT]: I m running custom rom jellybean criskelo.
Do you have the Facebook app installed? This has caused issues for several people with it constantly syncing.
As a test either disable fb syncing or uninstall fb and see if that improves you battery.
---------- Post added at 03:55 PM ---------- Previous post was at 03:53 PM ----------
Also do you have GPS or Wifi on constantly or any of the usual battery draining settings. Auto sync will also cause a big battery drain.
GPS won't do anything to the battery unless you're using it. If you have the GPS symbol in the notification bar then its being used otherwise its fine to leave it on.
I have set wi-fi settings in the advanced menu to make wi-fi sleep when the phone is so it's not on 100% of the time when i don't need it. Auto sync i turn off. Brightness is down as low as it can be with auto turned off - adjust it manually if your outside. Make sure you've disabled the S Speak Wake up commands on lock screen.
These increased my battery life quite abit.
Do you take the phone in the bathroom when you shower? That drain sounds very high indeed, possible moisture damage?
Carl.Brand.87 said:
GPS won't do anything to the battery unless you're using it. If you have the GPS symbol in the notification bar then its being used otherwise its fine to leave it on.
I have set wi-fi settings in the advanced menu to make wi-fi sleep when the phone is so it's not on 100% of the time when i don't need it. Auto sync i turn off. Brightness is down as low as it can be with auto turned off - adjust it manually if your outside. Make sure you've disabled the S Speak Wake up commands on lock screen.
These increased my battery life quite abit.
Click to expand...
Click to collapse
Even though GPS isn't used with it switched on it will still use battery so I believe your incorrect there.
I didint install any facebook app and my syncing is switched off all the time....
Any idea why?
Are you in a low signal area? I know it's a pain but to be on the safe side I would perform a factory reset. Also In android settings under battery option what does it show is using your battery?
Sent from my GT-I9300 using xda premium
carrd said:
Even though GPS isn't used with it switched on it will still use battery so I believe your incorrect there.
Click to expand...
Click to collapse
No, you are incorrect. He is correct. GPS isnt activated unless an app accesses it. The toggle only allows it to be used.
Sent from my GT-I9300 using xda premium
b-eock said:
No, you are incorrect. He is correct. GPS isnt activated unless an app accesses it. The toggle only allows it to be used.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
Ok I stand corrected apoligies for that.
Please be aware though if you use the weather widget and its allowed to use GPS, GPS will be used every hour or so to check location (or whatever your refresh period is) so please be aware its not just opening an app. Widgets like weather widget will always be able to use GPS automatically unless Auto Refresh is set to 'None'
I read something about there being a software bug specifically for the s3 a couple of days ago. Just my 2 cents
Sent from my GT-I9305T using xda app-developers app

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

s9 plus battery life trick

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?

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