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Hi guys,
i've my Nexus from about a week. My battery life is about 24hr but I use phone with Push mail (activesync with TouchDown). I don't know if I can boost battery life with a custom kernel UV.
I want to know if in sleep mode, the Snapdragon is fixed at 1Ghz? Or only with a custom kernel it goes down to 245mhz? Can this give me more battery life?
Thanks!
the phone idles at 245 mhz in all roms, not just modified ones. otherwise the phone would only live for 2 hours, tops, before the battery runs out.
in sleep as in "pc like standby" the cpu turns itself nearly off. from time to time it will wake up (timer based, interrupt) to do something, without turning the screen on. depending on load it will set the cpu clock accordingly. (generally it should be on less then 1% of the time)
you can actualy see this quite nice when you open an ssh session to the phone and switch it "off". every input in the session now takes ages to complete, because the phone aggressivly tries to sleep.
Your biggest power drain is going to be the screen. Try turning your brightness down, or if you haven't already, enable the auto brightness. I found this saved me a lot of power.
Is there a way to put phone in standby/hibernate mode when say battery reaches 20% charge?
Sometimes my phone will last all nite without being charged while other nights it will be completely drained. Once drained I have no way to determine what was consuming the battery since all data is lost. Also its a pain not being able to make a call etc till I charge.
Atrix 4G
Have you tried the app *Bedside* ?
Hi, I use Setting Profiles and you can set it to change profile based on battery %. You could therefore set it to go to flight mode when the battery hits 20%. Also Set CPU can do profiles so you can set it to underclock when asleep or lees than certain battery %.
I use these on my Milestone but don't know if you can get SetCPU on the Atrix.
Disclaimer; This does not damage your phone at all or fry/mess your cpu.
This method is used to lower CPU stress and increase Battery life
This method works for all rooted phones.
IMPORTANT: The newer versions of SetCPU might prevent your phone from entering deep sleep. Download version 2.24 from the following link which is the one with no problems and completely works 100%.
LINK
Deep Sleep breaks when charger is plugged in, you can see this by CPU SPY application available on playstore
Stop Downloading Battery Saving Applications, they do nothing and uses RAM.:silly:
Also Turn BLN off when you are sleeping.(It also Consumes battery and sometimes prevent deep sleep of CPU)
Set your Brightness to minimum and disable auto brightness.
LINK to Display Brightness
Instead use lite app called - Display Brightness from play store.
Turn off wifi and mobile data when not in use.
Use toggle for auto rotation, and keep off when not needed.
For more battery Saving, disable all animations and set screen timeout to 1min.
The S plus sucks in battery life. We all know that.But here's a fix, Try Under clocking instead of Over clocking.
When screen is on:
MAX 1.4Ghz(Why to OC??, if your phone runs smoothly on 1.4Ghz)
MIN 192Mhz
Ondemand governor (This governor jumps up to max when needed but spends most time on the min freq. Best battery saver.)
When screen is off:
MAX 365 Mhz
MIN 192 MHz
(This prevents lagging when playing music and other activities when screen off)
This way, you have a beast quick phone when you're using it, and the best battery saver when you're not!
NOTE: Turn off Autosync from the settings. It's only used to sync your gmail and contacts and such. You can manually sync when you add a new contact and since I don't use gmail, I refresh manually whenever I do.
SetCPU:LINK
Specific instructions for those that can't get it to work!:
On SetCPU:
Click Add profile
Where it says Profile, select it and tap "Screen Off"
Set the frequencies you want in use while screen is off (If you want just one frecuency, put both sliders on the same number)
Set priority (in case you have other profiles, otherwise don't bother)
Select governor (Won't really matter since cpu is gonna be running at 1 frecuency)
Tap save
Go back to Profiles tab at the top, then tap Enable at the top left to make the profiles work.
For a list of most governors and I/O schedulers detailed;
Visit
1.LINK
2.LINK
To check if its all working, install CPU spy from the playstore: LINK
For Playing GAMES(HD)/HEAVY GAMES, Plug your Charger in and play if possible.:good:
Most Important thing is to calibrate battery,
Calibration of battery is needed when you change your ROM.
This process wipes batterystats.
Battery Calibration
1. Charge 100%(NON STOP)
2. Download any battery Calibration tool from play store; (Link to App)
3. Open that app, click battery calibrate
6. Unplug your charger
7. Discharge your phone down to 0% during the day
8. Charge back up to 100% (NON STOP)
This is to make sure you're using your battery at 100%. Only do this after you flash a new rom.
The worst battery killer is 3G. No matter how much you try to optimize battery by tweaking and underclock, if you have 3G on, you're gonna have a bad battery drain.
Make sure that Autosync is disabled.
Done A small test usage 14 mins , you can see in attachment your CPU should look like this.
THIS READINGS FROM MY SGA.
And never ever install the Facebook App if you want to use your phone for more than 3 hours!
Sent from my GT-I9001 using xda app-developers app
Don't get apps that take background processes like what xellar said, facebook, and some other apps like tap tap revenge 4. Anyways thanks for the tips and link to free setcpu
Other people can also share VALID ideas about saving battery.
Will help many users.
Nice advises. I'm already using these.
One more good thing is turning mobile data off whenever you are not using it, also bluetooth, lowering brightness.
Good app for doing so is Power Toggles. You can always have widget on home screen and switch on/of these things with one tap.
Riiight.. Turn off autosync, disable 3G and wi-fi, dont use apps or games.. I might as well buy Nokia 3310..my phone lasts easily whole day with wifi on..with 3G it can get me at least 6-9h which is fine.. The key is to turn off 3G when you are on wifi and turn down brightness.. Everything else is not using your smartphone smart..
1) Set your network mode to 2G only if you're not using 3G/WCDMA
2) Manually set your operator in settings.
PS: After flashing one of firmwares I got a bug - battery is not charging to 100% while phone is ON. Only to 99% and not showing a message about fully charged battery... But when the phone is in off mode - it charges to 100%. Anyone knows how to fix this thing?
apkfox said:
1) Set your network mode to 2G only if you're not using 3G/WCDMA
2) Manually set your operator in settings.
PS: After flashing one of firmwares I got a bug - battery is not charging to 100% while phone is ON. Only to 99% and not showing a message about fully charged battery... But when the phone is in off mode - it charges to 100%. Anyone knows how to fix this thing?
Click to expand...
Click to collapse
Change/upgrade your firmware...
Battery Calibration
http://forum.xda-developers.com/wiki/Samsung_Galaxy_S_Plus/GT-I9001#Calibrate_Battery
This way works without an app.
TheBlackWolf said:
Change/upgrade your firmware...
Click to expand...
Click to collapse
Didn't help. But deleting batterystats.bin helped. Thanks anyway. :good:
Take a other kernel with better voltage and governor configuration.
Set Display time to 30sec.
Kind regards.
enable "only 2G"
turn off wiifi
turn off bluetooth
black screen wallpaper help?
Sent from my GT-I9001 using Tapatalk 2
If you are on CM7 try this... From CyanogenMod setting.
This will help to save battery.
cheehsiang said:
black screen wallpaper help?
Sent from my GT-I9001 using Tapatalk 2
Click to expand...
Click to collapse
On Amoled-Displays it should help. Inverted Apps, too.
setCPU
i testet the new version of setCPU 3.0.9, deep sleep works perfectly.
If profiles are not used it exits and there is no use of RAM in both versions (But then you do not have the unique feature of auto switching profiles ).
Is there another app with auto-switching?
buffo1987 said:
On Amoled-Displays it should help. Inverted Apps, too.
setCPU
i testet the new version of setCPU 3.0.9, deep sleep works perfectly.
If profiles are not used it exits and there is no use of RAM in both versions (But then you do not have the unique feature of auto switching profiles ).
Is there another app with auto-switching?
Click to expand...
Click to collapse
Actually no idea.
But other simple and best app for controlling CPU is NoFrills.
TheBlackWolf said:
Actually no idea.
But other simple and best app for controlling CPU is NoFrills.
Click to expand...
Click to collapse
But it has no profile-autoswitching, in fact no profiles at all. Voltage control Extreme has at least profiles, but without autoswitching. What is good about Voltage Control Lite/Extreme is that it sets cpu setting with init.d and so the app does not have to start on boot
Yes that is nice...
fo more info how to use
visit here
Link to App
TheBlackWolf said:
[
Stop Downloading Battery Saving Applications, they do nothing and uses RAM.:silly:
<snip>
When screen is on:
MAX 1.4Ghz(Why to OC??, if your phone runs smoothly on 1.4Ghz)
MIN 192Mhz
Ondemand governor (This governor jumps up to max when needed but spends most time on the min freq. Best battery saver.)
When screen is off:
MAX 365 Mhz
MIN 192 MHz
(This prevents lagging when playing music and other activities when screen off)
This way, you have a beast quick phone when you're using it, and the best battery saver when you're not!
<snip>
Click to expand...
Click to collapse
Many thanks for the battery saving hints. I'll finally kick out the Task Killer App, doesn't really seem to do anything except creating problems ..
For the statement that Underclocking would help in saving battery I wouldn't fully agree. A slow cpu needs more time to complete a task before returning to a sleep state. Of course the battery drain is higher with a higher frequency (which also require higher voltages), but I believe, that there isn't much to gain on this front. As long as I don't see any profound evidence I'd even suspect, that an underlocked CPU overall could even cause more power consumption. You can also read more opinions about this in general in this thread.
Much more beneficial would be to identify those apps that cause frequent wakelocks. Does anybody have hints here, how to track down those 'bastards' ? (From my Linux I know 'powertop', does something similar exist for Android? (Or are the battery statistics in CM10 sufficient to decide which app to wipe?)
z3non said:
Many thanks for the battery saving hints. I'll finally kick out the Task Killer App, doesn't really seem to do anything except creating problems ..
For the statement that Underclocking would help in saving battery I wouldn't fully agree. A slow cpu needs more time to complete a task before returning to a sleep state. Of course the battery drain is higher with a higher frequency (which also require higher voltages), but I believe, that there isn't much to gain on this front. As long as I don't see any profound evidence I'd even suspect, that an underlocked CPU overall could even cause more power consumption. You can also read more opinions about this in general in this thread.
Much more beneficial would be to identify those apps that cause frequent wakelocks. Does anybody have hints here, how to track down those 'bastards' ? (From my Linux I know 'powertop', does something similar exist for Android? (Or are the battery statistics in CM10 sufficient to decide which app to wipe?)
Click to expand...
Click to collapse
Better battery stats is application useful for identifying partial wakelocks.
Its an paid app, but Google helps... Lol
Your above sentence about UC comes true for heavy usage.
Normal apps can run smoothly and at same speed as of OC.
If your YU Yureka's battery last upto only few hrs. Try this :
First check Battery status (Settings->Battery)
If you find Mediaserver listed number one battery drainer with more than 50% battery uses, then there is issue with Media storage
Now go to Settings-> Apps ->All, select Media Storage & disable it. Clear data & reboot. Now enable it & reboot.
Check battery uses after some time Mediaserver will not be number 1 & may not be in the list also. Even if it is listed , it will not take much battery.
Credit : https://www.youtube.com/watch?v=R5JFZDywtIM
Greenify
If you have rooted your Yureka, you can use Greenify app from play store to enhance battery life.
Here are the steps (4 image files attached).
How to save battery life on your Android device: 20 Tips
Most smartphones have either a Lithium Ion battery or a Lithium Polymer battery. Both are Lithium Ion though, and as such, do not have a ''memory'' which means you don't have to fully charge or discharge them at the beginning, and partial charging is fine throughout their life. In fact, these types of batteries suffer from low voltage, so it's actually much better to charge them, even if only a little, whenever you have the chance rather than to fully charge and fully drain them.
1. Use a dark colored background
2. Make apps darker too
3. Get rid of auto-brightness
Don't use display auto-brightness. It may sound good, but auto-brightness is usually way brighter than you really need. It's much better to manually set a super low brightness level that is still comfortable, and then just bump it up when necessary. This is one of the main ways to improve your battery life as the screen is one of the biggest battery suckers.
4. Vibrate away!
Switch off vibrate. Unless you really need that added awareness, turn off vibration. It actually takes more power to vibrate your phone than it does to ring it. Turn off haptic feedback too. Sure it feels cool, but it doesn't really add anything to your experience, and it's another battery drainer.
5. Don't use a knockoff
Only use original batteries or respected third party manufacturer batteries. Saving a few bucks on a battery that might damage your beloved smartphone is a poor choice indeed, and may also deliver sub-standard battery performance.
6. Having a timeout is good
Set your display's screen timeout to as short a time as is practical for you. Just think, if your screen timeout is set to a minute, it'll use four times the amount of power to have it on, every time you switch your screen on, than if your timeout is set to 15 seconds. Studies report the average smartphone user turns their smartphone on 150 times a day, so anything you can do to limit that frequency (through self-control or other methods listed below) will help keep your battery running for longer.
7. Get your notifications to leave you alone at night
Set ''sleep times'' or ''blocking mode'' to switch off Wi-Fi and mobile data when you don't need them. If your phone is basically off limits at work, set your device to not ring, vibrate or connect to the internet while you're at work. Likewise, you can set your phone to airplane mode when you're asleep or use sleep or blocking modes to set up limits for what your phone does during certain times of the day, whether that's while you're asleep, at work or in a meeting. Get to know the specific settings your ROM offers. Not only will you have to fiddle with your phone less throughout the day (or night), but you'll be saving on battery life too.
8. Your phone doesn't have to be smart all the time
Turn off smart features like air gestures, smart scrolling and the like, Unless you really use these features every day, they're just using battery power for a feature you don't use.
9. Nor do you need to be connected 24/7
Turn off GPS, Bluetooth, NFC, Wi-Fi and mobile data whenever you don't need them. Turning off location data, or setting it to use Wi-Fi or 3G data rather than GPS works perfectly well. Only turn on Bluetooth and NFC as long as you need them, and there's no need to have both Wi-Fi and mobile data turned on at all times. If you use Wi-Fi a lot though, say at home and at work, then it makes sense to keep set your Wi-Fi to ''Always on during sleep'' as this uses less power than to have your Wi-Fi reconnecting every time you wake your phone.
10. Try out Dynamic Notifications
Use lock screen widgets or notifications if your ROM supports them, or install an app that does it for you like Dynamic Notifications. You'll be able to get basically all your content without having to unlock your phone fully and navigating around. You still need to light your screen up, but you'll have it on for much less time than normal. using a lock screen notification app with a black background can save your battery life significantly.
11. Don't get bogged down by widgets
Ditch widgets you don't really need, especially those that are connected to the internet like weather widgets.
12. Don't let your apps fall behind the times
Keep your apps updated. There's a reason developers constantly update apps, and many of these reasons are memory and battery optimizations. Keeping your apps updated also means you have the best optimizations available. Likewise, delete old apps you no longer use, as these may be running background processes that chew up RAM and battery life.
13. Use your battery saving mode, now!
If your phone has a battery or power saving mode or other battery management option, make use of it.
14. Explore the battery saving features on your phone
All ROMs, whether it's stock Android, OEM UI's like TouchWiz or custom ROMs like CyanogenMod, have various settings in the menu to help conserve or optimize battery consumption here and there. Find these various options for your device and ROM and make them work for you!
15. Choose when you sync your data
Turn off auto-syncing for Google accounts. If you don't need every single Google account updated every fifteen minutes, just go into your Settings and Google account and turn off auto-sync for those apps you don't need constantly updated.
16. Be the master of your app updates
Set apps to update only when you launch them. If you rarely (or very frequently) open an app, it might be better to only have it update when you do so, rather than updating automatically all the time via push notifications or sync intervals. If you only check email once a day, why not let the app update then only, and if you're on a widget or app every couple of hours anyway then why not have it update each time rather than every fifteen minutes when you're not even looking at it
17. Be app update savvy in the Google Play Store
Change your Google Play Store settings to manual update your apps. If you have the Play Store set to auto-update, you might have fifteen apps updating when you least expect it, destroying your battery life (and data plan) without you realizing it. If you use even half of these battery saving tips you'll see a marked improvement in your battery life.
18. Turn off Google hotwords
Stop your phone from always listening. Google's "Ok Google" voice searching is a fantastic and often very functional feature. The problem is that it can play havoc with your battery. Go into "Google settings" from your app drawer and tap the "voice" heading. On the next page, select '"Ok Google' detection". In this menu, the best option for battery life would be to untick all boxed, but if you are a fan of "Ok Google", tick only the "From Google Search app" box to ensure your device is only primed while in the Google app.
19. Get rid of animations
Disable animations. This process may differ slightly from device to device but the crux of it should remain the same. Go to your settings and to the "about phone" page. Tap on the "build number" around 7 times. You will be notified that you have become an "Android developer" (don't worry, enabling the Android developer options doesn't have any adverse affects, it just adds another option in your settings menu). Go back to your settings and tap on the newly inserted "developer options" menu at the bottom. On the next page, scroll down to where it says "window animation scale," "transition animation scale" and "animator duration scale", and switch all of these off. Your device's interface may no=longer look as pretty, but the battery life will be better.
20. Make your location services more battery-friendly too!
Turning off location services isn't just a fantastic way to save on your battery, it saves on your data plan too! Go into your settings and you will find "location" under the "personal" heading - tap on it. At the top of the next page it you will see "mode" in this menu you will be able to set the options for how your smartphone determines your location. Select "battery saving" on the following page.
#Courtesy to Android Pit.
The temporary solution for the YU Yureka heating problem is to switch the mode of phone from performance/balanced to battery saver mode. This reduces the continuous heating of the device
Hit thanx if helped.
@avs from MMX canvas 4
Scheduled power on and off option yu yureka- any codes
there is no inbuilt scheduled power on and off option in yu yureka. It is possible to write code from developer options?
laxmiitz said:
there is no inbuilt scheduled power on and off option in yu yureka. It is possible to write code from developer options?
Click to expand...
Click to collapse
Check here.
Here also .
Hit thanks if it helps.
I own a Yureka Yu since April 2015. From the beginning there was a problem of heating and phone would randomly reboot. The Battery life was ok after the update Of late the battery drains fast and doesn't charge 100%. Even after keeping for charge overnight the battery shows only 89%.
Attached screen shot of battery. Please help.
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Asus Zenfone 5V's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Drains a lot when phone is idle.
yes Zenfone 5 z is drianing almost 15 - 20 percemnty battery in stand by
This is work for me. 8 hours standby take 10% from battery
zenfone-battery-drain.com
If I have an alarm On in the morning, the phone will eat through about 5-6% of battery percentage in about 9 hours. However if there is no alarm the battery drain is somewhat reduced to about 3-4%.
Anyhow, Asus needs to fix the idle battery drain in the Pie update.
Same here. Battery drain when idle.
The battery drain issue for zenfone 5z can be minimized by doing the following:
- Make sure you are not using any Live Wallpapers or any application that can run on background while your phone is idle;
- Turn off Bluetooth, Mobile Data, and/or WiFi since you wont be needing them when your phone is in idle mode;
- Turn off Location Services or atleast set it to Battery Saving Mode if you insist on having it turned on;
- Go to Settings > Sound & Vibration > Vibration intensity, and lower all vibrations or turn them off altogether;
- Go to Battery Settings > Battery optimizations, and check that all your Apps are being optimized;
- Still in Battery Settings, set the phone to Sleep in 1 minute or less when idle;
- In Battery Settings, click PowerMaster > Battery Saving options, enable "Clean up in suspend" and "Auto deny apps from auto-starting";
- Inside PowerMaster, click "Auto Start manager" and disable background apps from auto-starting;
- Go to Settings > Display, Turn off Screen Saver and LED indicator;
- Go to Settings > Security & lock screen, disable Wallpaper animation and Weather animation;
- Go to Settings > Advanced > AI features, and turn off AI ringtone (this makes your phone listen on the background noise of your environment which consumes battery in the background);
- Go to Settings > Advanced , enable Pocket Mode, this helps your device not to accidentally wake up on idle mode;
**You can also use third-party apps like Greenify (dont need root) to help you save battery when you are not using your phone**