Database Info

Definative guide on how to get amazing battery life

1.Reduce display brightness of your screen
Although Samsung Galaxy S come with Super AMOLED which is supposedly to reduce your battery consumption but ironically it is one of the biggest battery life eater of your phone. Try to disable Automatic brightness and set it to the lowest level will improve your battery life a lot.
2. Remove unused widget in the menu
You must always remember that the more widget you have, the more battery life will be consumed up especially those widgets that use data connection and auto sync based on schedule. PS: only keep those widgets that you really need.
3.4. Turn off Bluetooth, GPS when idle
Only turn on Bluetooth and GPS when you need it, otherwise please disable it as it will consume your battery resources. Or please ensure that the charger is hook on your device when you turn on the GPS in the car.
5. Turn off 3G data connection, use Wi-Fi instead
Always gets connected with Wi-Fi when available. 3G data connection consume more battery compare to Wi-Fi connection. Turn off both of them when not needed.
6. Ensure you phone have a good signal as poor signal consume more battery life
When the phone is at the poor receiving end it will tend to use more power than usual to increase its signal strength with the communication tower. So it is always good to make sure that your phone has a good signal reception. You can try to switch to 2G if 3G connection signal in your area is poor.
7. Try to disable / reduce auto-sync whenever possible
All you have learned, data connection does consume lot of your battery life. By disabling the background scheduled auto-sync applications like Facebook, Gmail and Twitter can save your phone lot deal of battery life. If you really have to turn on the auto-sync feature in the phone try to reduce the frequency of auto-sync will also help to improve your phone battery life.
8. Disable new Samsung Apps notification
You can turn off new Samsung Apps notification if you not using it.
The configuration can be access through ~ >Settings >Application > Samsung Apps > Off
9. Turn off motion sensor
Only enable the Samsung Galaxy S Motion features that you using and try to disable those you not using like turn over, tilt, panning and double tap, turn them off as it might save your some battery life.
10. Use solid black static wallpaper and no live wallpaper
Most of the phone including Samsung Galaxy S Super AMOLED will tend to use less power on just solid black wallpaper than a lively solid white color based wallpaper because there will be almost no backlight on the screen. Please do bear in mind that a lovely animation live wallpaper will even cost you more battery life as ~ CPU power = battery life.
11. Fully close application that not use
Samsung Galaxy S is a super multitasking mini computer that come with dual-core processor but running a lot of applications at the background can actually increase your battery usage because they all require your phone CPU processing power. So it is advisable to fully close all the background applications that you not needed.
12. Freeze unused bundle applications
Too many original bundle software running in your Samsung Galaxy S? Freeze them… Titanium Backup Pro provide a way for you to freeze away all the stock application like Social Hub, Email, Maps that are running and utilizing your phone processing power even when you’r not using them. Ps: Your phone need to be rooted before you can use the Titanium Backup Pro.
13. Undervolt and underclock You 800Mhz GHz CPU
Aside from display, Samsung Galaxy S′s powerful CPU is one of the reason why your battery life eat up so fast. You can just underclock and undervolt it with SetCPU if you don’t need that much of processing power. Ps: Your phone need to be rooted before you can use the SetCPU.
14.Download and install JuiceDefender
With an amazingly over 5,000,000 downloads recorded so far in the Android market, JuiceDefender will definately extend your the battery life of your Samsung Galaxy S. JuiceDefender pack with powerful and easy to use power manager app that specifically designed to extend the battery life of your Android device. It can automatically and transparently manages the utilisation of your S battery like when to enable and disable the 3G/4G connectivity and WiFi.
JuiceDefender is available in the Android Market for free and if you would like to have a more powerful (customisable) version you can download the add-on JuiceDefender Ultimate for a small fee of $6.83.
15. Use custom ROM / firmware
Custom ROM / firmware offer a lot of optimization and tweaks to improve the performance of your battery life. You can try it out if you feel that after you have tried out all the tips above and your battery still draining too fast. But please be reminded that flashing a custom ROM / firmware will be voiding the warranty provided by Samsung.
Please let me know if there are other tips and tweaks to improve battery life of Samsung Galaxy S/Cappy that I have missed out.

I think #14 is not necessary if you are running a custom ROM

why wouldnt it be?

I believe number 11 has been proven untrue in the fact that killing tasks that the phone will reopen soon after actually reduces battery life hence the reason task killers are bad. Also the captivate only has a single core processor.
Other than that nice work it should help people out.

If you use a stock ROM with no voodoo color built into the kernel, then use full brightness, I do and I get great battery life, the screen isn't the biggest battery life sucker.... this isn't the greatest battery saving thread from what I can see.
Sent from my SGH-I897 using xda premium

Generally good tips, but definitely a few holes here and there.
For example, GPS doesn't drain when 'on', only when certain apps use it, making it pretty safe to keep toggled on all the time.
You can go further with SetCPU and other similar apps but underclocking during screen off, and I think that's helping me save battery in my personal experience.
Having a black wallpaper is good and all, but I feel that doing that is a bit too far in optimizing battery life. What's the point of having a pretty decent screen when all you do is use a black wallpaper?

Or flash Darky rom 10.2 Extreme Edition.
Sent from my SAMSUNG-SGH-I777 using XDA App

Thank you all for the highlights & suggestions. Just wanted to see what I could do to help those out there with battery drain issues.
Samsung Captivate - ICS 4.0.1

b-eock said:
If you use a stock ROM with no voodoo color built into the kernel, then use full brightness, I do and I get great battery life, the screen isn't the biggest battery life sucker.... this isn't the greatest battery saving thread from what I can see.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Then what is the biggest battery sucker on your phone?

watsa said:
Then what is the biggest battery sucker on your phone?
Click to expand...
Click to collapse
on ICS PORT soon to be CM9, android OS is.
Sent from my SGH-I897 using xda premium

b-eock said:
on ICS PORT soon to be CM9, android OS is.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
That is no good, considering the screen should be taking most of the power.
You either arent using your phone or you are crushing batteries in hours.

No I'm using it, Android OS process in ICS includes more than what they do in GB. It last all day (~15 hours with %40 left)
Sent from my SGH-I897 using xda premium

Yeah I have the ICS port, build three, and the battery sucked the first day due to all the downloading and cpu usage, but after that and a full charge and battery diagnostic wipe it was a great life with decent usage on apps and data and messaging with auto brightness

In Point 11, Captivate uses single processor....and killing system apps causes more battery drains....

My limited experience with roms suggests that as roms are works-in-progress their battery life can vary widely. Serenity6.1 has really seemed to be a long life rom.

These steps do make a big difference, also the Beta 2 build for ICS solves a lot of issues that users had with ICS battery life. Honestly if you want even more battery life grab the 3500 mah extended battery off amazon for $10.

jeromechrome1 said:
1.Reduce display brightness of your screen
Although Samsung Galaxy S come with Super AMOLED which is supposedly to reduce your battery consumption but ironically it is one of the biggest battery life eater of your phone. Try to disable Automatic brightness and set it to the lowest level will improve your battery life a lot.
2. Remove unused widget in the menu
You must always remember that the more widget you have, the more battery life will be consumed up especially those widgets that use data connection and auto sync based on schedule. PS: only keep those widgets that you really need.
3.4. Turn off Bluetooth, GPS when idle
Only turn on Bluetooth and GPS when you need it, otherwise please disable it as it will consume your battery resources. Or please ensure that the charger is hook on your device when you turn on the GPS in the car.
5. Turn off 3G data connection, use Wi-Fi instead
Always gets connected with Wi-Fi when available. 3G data connection consume more battery compare to Wi-Fi connection. Turn off both of them when not needed.
6. Ensure you phone have a good signal as poor signal consume more battery life
When the phone is at the poor receiving end it will tend to use more power than usual to increase its signal strength with the communication tower. So it is always good to make sure that your phone has a good signal reception. You can try to switch to 2G if 3G connection signal in your area is poor.
7. Try to disable / reduce auto-sync whenever possible
All you have learned, data connection does consume lot of your battery life. By disabling the background scheduled auto-sync applications like Facebook, Gmail and Twitter can save your phone lot deal of battery life. If you really have to turn on the auto-sync feature in the phone try to reduce the frequency of auto-sync will also help to improve your phone battery life.
8. Disable new Samsung Apps notification
You can turn off new Samsung Apps notification if you not using it.
The configuration can be access through ~ >Settings >Application > Samsung Apps > Off
9. Turn off motion sensor
Only enable the Samsung Galaxy S Motion features that you using and try to disable those you not using like turn over, tilt, panning and double tap, turn them off as it might save your some battery life.
10. Use solid black static wallpaper and no live wallpaper
Most of the phone including Samsung Galaxy S Super AMOLED will tend to use less power on just solid black wallpaper than a lively solid white color based wallpaper because there will be almost no backlight on the screen. Please do bear in mind that a lovely animation live wallpaper will even cost you more battery life as ~ CPU power = battery life.
11. Fully close application that not use
Samsung Galaxy S is a super multitasking mini computer that come with dual-core processor but running a lot of applications at the background can actually increase your battery usage because they all require your phone CPU processing power. So it is advisable to fully close all the background applications that you not needed.
12. Freeze unused bundle applications
Too many original bundle software running in your Samsung Galaxy S? Freeze them… Titanium Backup Pro provide a way for you to freeze away all the stock application like Social Hub, Email, Maps that are running and utilizing your phone processing power even when you’r not using them. Ps: Your phone need to be rooted before you can use the Titanium Backup Pro.
13. Undervolt and underclock You 800Mhz GHz CPU
Aside from display, Samsung Galaxy S′s powerful CPU is one of the reason why your battery life eat up so fast. You can just underclock and undervolt it with SetCPU if you don’t need that much of processing power. Ps: Your phone need to be rooted before you can use the SetCPU.
14.Download and install JuiceDefender
With an amazingly over 5,000,000 downloads recorded so far in the Android market, JuiceDefender will definately extend your the battery life of your Samsung Galaxy S. JuiceDefender pack with powerful and easy to use power manager app that specifically designed to extend the battery life of your Android device. It can automatically and transparently manages the utilisation of your S battery like when to enable and disable the 3G/4G connectivity and WiFi.
JuiceDefender is available in the Android Market for free and if you would like to have a more powerful (customisable) version you can download the add-on JuiceDefender Ultimate for a small fee of $6.83.
15. Use custom ROM / firmware
Custom ROM / firmware offer a lot of optimization and tweaks to improve the performance of your battery life. You can try it out if you feel that after you have tried out all the tips above and your battery still draining too fast. But please be reminded that flashing a custom ROM / firmware will be voiding the warranty provided by Samsung.
Please let me know if there are other tips and tweaks to improve battery life of Samsung Galaxy S/Cappy that I have missed out.
Click to expand...
Click to collapse
Basically dont use your smartphone as a smartphone. Thats what you're saying by turning off all the good features of the phone.

1, 3, 4, 11 are like NO DUH!!!
5. Are you saying use EDGE? It will save some battery, but you have to consider it may take longer to load something, and thus the screen might be on longer, negating savings. Plus, it's a PITA to change back and forth.
6. Other than switching to EDGE, not really in your control.
7. That's stupid. It defeats the whole purpose of having a smartphone.
9. As long as you lock orientation. I doubt it saves much though...
15. YES, that can be HUGE.
Jeffu said:
Having a black wallpaper is good and all, but I feel that doing that is a bit too far in optimizing battery life. What's the point of having a pretty decent screen when all you do is use a black wallpaper?
Click to expand...
Click to collapse
I agree. I think a compromise is a better idea. A lot of ROMs have black wallpapers with a small % of extremely brightly colored random or geometric designs, or green android-ish swirls or something that look AMAZING on the AMOLED screen.

Thank you all for your feedback.
Sent from my Galaxy Nexus using xda premium

thanks, great guide!

Undervolting

Hello guys
I'm not a new user in kernels or ROMs .
I have a low-decent battery life ,and I'm sure there's a way to get a better battery life with undervolting .
I want to know
what is "undervolting" ?
What is the biggest damage it can cause?
What is PVS?
How do I know ,how much I can UV?
What are the steps to undervolt?
What I gain from UV (despite battery life)?
For your info ,I'm using AOSPAL ROM +FAUX's latest 16u kernel .
Thanks
Sent from my Nexus 5 using XDA Premium 4 mobile app

http://forum.xda-developers.com/showthread.php?t=2537000
Sent from my Nexus 5 using Tapatalk

Hi,
Most of your questions have a reply:
About undervolting: http://forum.xda-developers.com/google-nexus-5/general/nexus-5-undervolting-thread-t2537000.
CPU binning: http://forum.xda-developers.com/google-nexus-5/general/cpu-binning-nexus-5-t2515593.
The "risks" are instability like hard reboot, SOD, etc.... To find a "safe" value you will need to test by yourself to find what undervolting your CPU can handle, not all CPU's are equals.
Undervolt by steps like - 25mV, don't set your new values at boot unless your are sure it's stable (or you could encounter bootloop), test for a few days under different conditions (as your use).
The gain apart battery life (but you will not gain that much as people tend to think) is a little less heat, but again nothing huge..., better is to test by yourself and see what you will gain... or not.
Battery life depends mainly of your use, apps, signal quality and settings like, screen brightness, synchro, CPU governor, etc... In my opinion check first what could be the cause of your low battery life (and what is low battery life for you???) before play with undervolting.

As said above, undervolting will get you very minor battery life increases.
More than likely you have an issue, or its just your setup and usage giving you the battery life you are seeing.
Undervolting will not change any of this.... You'll gain only minutes of battery time.
Try some troubleshooting in the below thread to see if you have an issue, or how to setup for better battery life. Read through it a bit, from the last page and work back a bit. You can post meaningful screenshots there too. From gsam or BBS.... not the stock battery screen, it has no real useful info for finding issues. Good luck!!
http://forum.xda-developers.com/showthread.php?t=2509132
Nexus 5 Battery Results

I've been undervolting many systems for many years, primarily Linux desktops and some servers, and the primary benefit is that you get less heat output which means when running cpu-intensive tasks the temperature climbs slower so the throttling of the clockspeed kicks in later, so your phone will be faster in certain situations. If you take a phone which has been idle for a while and run a benchmark, and then immediately run that benchmark again, the 2nd time gets a lower result as the phone is still hot from the 1st. This makes drawing conclusions about settings really dificult but it illustrate that throttling from heat is affecting speed.
For most users their perception will be the phone runs cooler.
You do undervolt at each step in the processor's frequency, and each step is a trial+error activity, the throttling I mention means finding a stable under-volt at the higher frequency which is labour-intensive,i.e take the max clock, and undervolt it a little, run a benchmark which forces it to run at high clockspeed, and if it passes that test then run it again at the next step down in frequency. Once you've got the most stable top clockspeed, then do it progressively for all the other voltages on the way down.
In some platforms in Linux and Windoze, we wrote scripts which save the stable voltages and then undervolts a little and runs a stress-testing benchmark and if the system hung it wouldn't save the current voltages so the previous higher voltages were safer, stick that script in a startup script area and leave the compute to do many self resets, and you've calculated your device's voltage range. I wonder if someone has that done for Android??? For a laptop the FAN would run slower saving battery time and for laptops that would lead to say 20% better battery life but on a phone it won't make much saving as no fan.
Your phone will run most of its time (like 95%) at its lowest frequency, so for effort/benefit just focusing on dropping its voltage will gain the most in the phone running cooler.
Battery life improvement is marginal, if you look at your battery stats its down to your application settings and screen brightness, i.e. how you use and what you do with your phone. So if your battery life is bad, use your phone less!
I carry a slim USB battery, it is the $/effort/benefit the best thing you can do, $20 doubles your battery life, if you get one with a 1.5A-2A output in just a few minutes when the phone doesn't mind a battery attached, will dwarth every possible tweak and hack anyone can form in benefit.

Boost performance and increase outdoor visibility..

I just read this over on phonearena and wondered if anyone else saw it and has tried it.
http://www.phonearena.com/news/How-...-visibility-of-the-LG-G3-without-root_id58888
Im tempted to try it but hesitant too.

It'll increase the overall performance of the phone, at the cost of a little bit battery life, since turning off thermal mitigation allows the cpu to clock at a higher speed more often while ignoring the heat.

I cant decide if its worth it. For the most part I dont have any complaints about the brightness but I also use Lux.

While it was a different phone I did this same thing with my LG G Pro with no adverse effects to the phones operation in just over a year. It is still going strong in fact, so I dont fear phone damage by doing this but on this phone I havent seen the need for it yet.

I've been using this setting for some time now. I see no decrease in battery life, indeed I've seen nothing negative from it.
Sent from my LG-D850 using Tapatalk 2

I've had both thermal settings off for a while now as well, it only powered down from heat once and that was because I was chrome casting Netflix and playing a intensive 3d game. Other than that it's fine, however I would expect it to get hot doing 2 large processes anyway. Battery life is still 4-5hiues SOT

By doing this my phone over heats and the turns itself off. Was running fine for a while with it on but I guess it was to much for the phone to handle.

Gain performance and free ram rootless

Is there a way to have more performance, more free ram and better battery without root? Actually I achieve 4.5hrs of sot. Thanks!

Vipery said:
Is there a way to have more performance, more free ram and better battery without root? Actually I achieve 4.5hrs of sot. Thanks!
Click to expand...
Click to collapse
Buy a different phone?

Android intentionally keeps apps in memory for faster opening so less free ram isn't exactly a bad thing.

Exactly. I tried disabling/uninstalling stuff (and pretty much!) from my Android phones so many times and NEVER saw any performance improvement. It is all imho placebo effect. Every custom ROM MUST be slower than stock, if for nothing else, because it is deodexed. The thing is that people flash new ROM on empty phone and go woooow, how fast... yea, wait a couple of months S8+ is fast enough, and keeping more free RAM will only decrease performance, because as mjones73 stated, it keeps apps in RAM in order to run them faster. Better battery? Probably by disabling or not installing some stuff that runs in the background, but better yet - get a power bank or just... charge! The wall outlets are everywhere. I don't get this tuff with more battery. Just plug it in and charge. New batteries can be charged as soon as they fall below ~ 80%.... and it won't affect battery life etc.

Question S21 plus latest software. Battery life (great)

I dusted off my xda account to let you know that this latest software is great... Battery life finally doesn't drain when not used. (battery drain while not used drives me crazy, wife has iPhone... Always in use, it lasts forever)
Anyway Im the guy that never have problems, not many apps. No smart watch connected. Not rooted, not gamer, no cloud.
My battery used to drain like 15% overnight. Not anymore. It barely uses 40% a day.. Before it was about 75%.
I'm planning to freeze my software update app. Bc whatever they did is working great.
My device is more than 12 mo old, and i use the 85% charge limit (slowest possible charge). Unlocked US model directly from Samsung.

Yay.
Definitely package block updates if it's running well now.

you lucky guy! I'm waiting for the Pixel 7/7 pro and then I'll choose between them and the Zenfone 9. Samsung cheated me for the last time!
My phone is slower than my previus Op7Pro, battery drain is huge and it's always hot. I have it from July 21 but this summer the phone has been unusable under the sun or on the beach because of the huge thermal throttling. I had to splash in the swimming pool while taking photos of my children because it was very hot and went in thermal protection.
Battery life is terrible too, I've to charge at least twice a day even without using it.
Do you think is something that can be solved by the Samsung support?

deskmat81 said:
you lucky guy! I'm waiting for the Pixel 7/7 pro and then I'll choose between them and the Zenfone 9. Samsung cheated me for the last time!
My phone is slower than my previus Op7Pro, battery drain is huge and it's always hot. I have it from July 21 but this summer the phone has been unusable under the sun or on the beach because of the huge thermal throttling. I had to splash in the swimming pool while taking photos of my children because it was very hot and went in thermal protection.
Battery life is terrible too, I've to charge at least twice a day even without using it.
Do you think is something that can be solved by the Samsung support?
Click to expand...
Click to collapse
Turn off global power management, find the battery/bandwidth hogs and deal with each on a case by case basis ie optimize it. All Samsung's should be optimized for best performance.
Package Disabler is something I always use but it's not my only tactic.
Since the N10+ Samsung has lost its balance.
That said my now cool running snappy fast N10+ was once a stuttering, hot running battery/bandwidth hungry hog. It doesn't seem like the same device now, it runs like a bat out of hell. Been running like this for 2 years on the same load. All you can do is try to optimize it.
Samsung Tech support? Bah-ha-ha-ha, don't count on it. Rarely are they helpful, but occasionally you get lucky. Updates tend to break not fix things... think before you click and disable all auto updates especially firmware.

blackhawk said:
Turn off global power management, find the battery/bandwidth hogs and deal with each on a case by case basis ie optimize it. All Samsung's should be optimized for best performance.
Package Disabler is something I always use but it's not my only tactic.
Since the N10+ Samsung has lost its balance.
That said my now cool running snappy fast N10+ was once a stuttering, hot running battery/bandwidth hungry hog. It doesn't seem like the same device now, it runs like a bat out of hell. Been running like this for 2 years on the same load. All you can do is try to optimize it.
Samsung Tech support? Bah-ha-ha-ha, don't count on it. Rarely are they helpful, but occasionally you get lucky. Updates tend to break not fix things... think before you click and disable all auto updates especially firmware.
Click to expand...
Click to collapse
thanks for your suggestion, this night (when my children will fall asleep XD ) I'll try to check. Where can I find the option to disable the global power management?
About the power governor I'm using the mid option named High ( I have Optimized - High - Maximum) but I've tried the other two options and wait I've seen is bad performance (no increase in battery life) or increase of the phone temperatures with no real benefit in the daily use.
I'm hating this phone, I'm thinking to change asap, I'm waiting for the Pixels, hoping Google is able to manage the thermal issues better than Samsung.
About the support I don't mean the one by the phone, I know it's useless , I would mean if my thermal and battery problems can be related to some hardware issues.

deskmat81 said:
thanks for your suggestion, this night (when my children will fall asleep XD ) I'll try to check. Where can I find the option to disable the global power management?
About the power governor I'm using the mid option named High ( I have Optimized - High - Maximum) but I've tried the other two options and wait I've seen is bad performance (no increase in battery life) or increase of the phone temperatures with no real benefit in the daily use.
I'm hating this phone, I'm thinking to change asap, I'm waiting for the Pixels, hoping Google is able to manage the thermal issues better than Samsung.
About the support I don't mean the one by the phone, I know it's useless , I would mean if my thermal and battery problems can be related to some hardware issues.
Click to expand...
Click to collapse
It's in Device Care under battery. Individual app battery background settings don't invoke global power management so you can do that instead.
That's just the start. You probably need to use a package disabler or adb edits to disable about 70-80 bloatware apps.
This is how on my N10+'s its configured.
Unlike latter Samsung flagships the N10+ is a well balanced phone in terms of form factor, usability, functionality and power consumption.
It supports expandable storage up to 1tb.

It seems that disabling the global power management the slug mode has been disabled too. I need to check it in the next days if the situation stays like this or not. In any case I still need to block the bloatware.
Thanks for your help