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I have heard good things about juice defender, but i have a basic question. It says it turns of data during times, or when certain apps are running, etc...
Now, is the data only internet connection? Or will it interfere with my ability to get texts as well, because that would be a deal break for me.
Data is only the internet. The only things that you'll be missing out on are e-mails, which will still come through based on your schedule set up and when you have your screen on.
Sent from my SPH-D700 using XDA App
Heard so much about this app, tried it and took me only a few hours to remove it. When screen is off, it kills data, so basically apps like K-9 Mail that push my IMAP-idle email accounts and poll other accounts are basically impotent.
Plus the interface is confusing with a myriad of settings and no real hold on what settings stick or what not to set. I understand the concept of the app but it's not for me. With stock rom and mediahub-DRM-whatever-process killed off manually, i get by a work day with 50% left over on the train/bus-ride home, more than enough to do stuff before i get home.
I dave been using juicedefender for 3 weeks and it has maximized my batt an overall of 1.4x. The interface is confusing for those that don't spend time and learn it....its granular.
Sent from my SPH-D700 using XDA App
U can set it to fcetch data on certain time intervals and u can get emails like that
Sent from my Epic 4G
I'm totally happy with it - I'm getting a rating of around 1.7x to 1.9x I know I can easily go a full day on one charge. The default setting of enabling data every 15 minutes is enough for me - I don't expect to get emails that are time sensitive to the point where a maximum of 15 minute delay would be detrimental. And I play with my phone a lot so I'm usually waking it up to respond to texts and it reenables data then anyway.
edit: I'm not using any battery tweaks or DRM disabling stuff. I'm stock except for rooting.
You guys and this juice defender. you use more battery with this because it is always running in the background. i get 45 hours without juice defender or a task killer. 1 day of battery pleasssseee i could get 2 if it was left in standby or more. no drm removed. root, cwm, galaxy rom and kernel di18 & blue minimalism
Oh well f me... If you're getting 45 hours that must mean I can get 45 hours because, you know, our geographic locations have the exact same coverage and we have the exact same phone usage patterns. Wow I feel like such an idiot. Thank you. Thank you for showing me that juice defender, instead of increasing my battery life by a good 6-8 hours, is actually killing it by 21 hours...
Sent from my SPH-D700 using XDA App
Actually I am second guessing it too. Sure it off for a few days...
Sent from my SPH-D700 using XDA App
guruleenyc said:
Actually I am second guessing it too. Sure it off for a few days...
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
That's fine - always be skeptical especially when an update comes out to improve performance. I'm about to test the new kernel without this to see if it's worth it. But I know that keeping data off on my Hero tripled the battery life and since having this phone it's definitely increased it. But you can't tell me that I'm losing 21 hours of battery life by using it - and definitely don't try to make me feel like an idiot for using it either.
shinma6980 said:
That's fine - always be skeptical especially when an update comes out to improve performance. I'm about to test the new kernel without this to see if it's worth it. But I know that keeping data off on my Hero tripled the battery life and since having this phone it's definitely increased it. But you can't tell me that I'm losing 21 hours of battery life by using it - and definitely don't try to make me feel like an idiot for using it either.
Click to expand...
Click to collapse
Im sure its not killing you by 21 hours. prolly your STOCK sync settings though. i only turn it on for a minute or two 3x a day. but go with out it i bet its prolly like 8 hours. think about it when your screen is off it is running. well that is another process that is draining battery unneccessarily. My entire phone is set up like on demand it does what i want it to when i want it to not when it wants too and all of this is acheived with stock settings and checking every app for update frequency settings. I use my phone a lot so i need it to be there.
jbadboy2007 said:
Im sure its not killing you by 21 hours. prolly your STOCK sync settings though. i only turn it on for a minute or two 3x a day. but go with out it i bet its prolly like 8 hours. think about it when your screen is off it is running. well that is another process that is draining battery unneccessarily. My entire phone is set up like on demand it does what i want it to when i want it to not when it wants too and all of this is acheived with stock settings and checking every app for update frequency settings. I use my phone a lot so i need it to be there.
Click to expand...
Click to collapse
So for argument's sake, and because I wanted an actual test, I installed your setup based on you're post earlier, andromeda rom, no juice, etc. gmail and facebook sync off. I even went in 4 times throughout the day to turn off running services. I got 11 hours and that was with charging while I was in a vehicle. So I would say about 9 to 10 hours really. TWS was only at 16%. Display was the biggest battery drain at 82%.
So now that I've done this, I can say without a doubt, for me personally, juice defender is really extending my battery life. While running juice defender, I take my phone off the charger at 6am typically and when I go to bed at midnight I still have over 20%. And if I don't plug my phone in, I can wake up at 6am the next day and the phone is still on.
You have a setup that works for you, and I have a setup that works for me. In my setup, juice defender gets me through a 24 hour period without charging. Now that I've got the andromeda rom and kernel, I'm going to test battery life with juice.
Sent from my SPH-D700 using XDA App
45 hours is meaningless when you just let the phone sit in standby the entire time. That's like the car commercials that list higher mpg than they get in the real world.
Sent from my SPH-D700 using XDA App
I have juice defender installed only for it's two toggle widgets. With defender disabled it doesn't run in background, I take advantage of the data toggle widget and I've seen it save as high as 5x's life.
Juice Defender, Adv Task Killer, etc
Do you use them or not? Do they work or not? I have heard it both ways? What’s your guys opinions?
I know you can turn down screen brightness and turn off setting to get better battery life wifi, email checking, syncing, etc. OR just turn the phone and get great battery life
I say you got this amazing phone so use it.
Task killers are bad. Juice defender can work, but turning off your radio
can cause some wake lock issues with certain apps when they can't connect
Sent from my PG06100 using XDA App
saw429 said:
I say you got this amazing phone so use it.
Click to expand...
Click to collapse
^ Agreed. I keep my screen brightness all the way up because it looks the best and everything synced because what's the point of a smartphone w/o instant notifications? GPS stays on too. If on 3G I can easily get 14hrs out of a charge and on wifi 20+.
EDIT: And I can't stop fidgeting with the damn thing. I'd probably get better battery if I didn't turn the screen on every couple minutes.
^ Shift Faced
Juice defender works amazingly.
Sent from my never been rooted, stock Froyo Epic.
In my experience. They don't.
I get the same/better battery life then I was using JuiceDefender.
I ran 1 week with Juice Defender and 1 week without, making sure to use the same amount of usage each day to test my theory. And it came out to about even with not using a program a slight edge.
Not sure how many here know about this, seems some do and some don't.
The greatest program on the market in my opinion is Juice Defender. It multiplies my battery life anywhere from 1.75x to 2x or more! I highly recommend the purchase of the add-on Ultimate Juice for many many more settings and options, but Juice Defender itself is free forever. I currently use the beta which works flawlessly
Juice Defender
Reclaim your battery! Save power and extend battery life with JuiceDefender
JuiceDefender - Battery Saver is a powerful, yet easy to use Battery Manager App.
It extends battery life by intelligently managing the battery-draining components of Android devices, like 3G/4G connectivity and WiFi.
The preset modes are the perfect way to gain precious hours of battery life; it’s literally as easy as one tap.
JuiceDefender is also fully customizable through a clean and intuitive user interface. Once configured JuiceDefender runs by itself, improving battery life in a fully automated manner.
With JuiceDefender - Battery Saver you can easily manage your Mobile Data, WiFi and CPU speed, you can keep power consumption under control (e.g. disabling connectivity when the battery runs low), schedule regular Synchronization events, enable or disable connectivity for specific apps, auto-toggle WiFi depending on your location, and much more.
Run at full capacity when you need it, save battery when you don’t
with JuiceDefender - Battery Saver.
Features*:
- 5 Preset Profiles (from default mode to full customization)
- Easy and Intuitive User Interface (no annoying ads!)
- Home screen Battery Widgets
- Mobile Data toggle automation
- 2G/3G toggle automation**
- WiFi toggle automation + Auto-Disabling option
- Location-aware WiFi Control (e.g. enable WiFi only at home/work, disable it otherwise)
- Battery Consumption Optimization (e.g. when screen off, battery under threshold, etc.)
- Comprehensive Connectivity Scheduling (regular schedule, night time/peak time, week days/weekends)
- Connectivity Control for Specific Apps
- CPU scaling when phone is idle**
- Full Activity Log
- It’s FREE!
Click to expand...
Click to collapse
Juice Defender Beta
Ditch your charger - increasing battery life has never been so easy!
Always carrying your charger around? You don't need to!
JuiceDefender intelligently and transparently manages for you mobile connectivity and other battery-sensitive components, greatly improving battery life.
***BETA! This is frequently updated and sometimes buggy/unstable! Don't like this? Get the "stable" version
Click to expand...
Click to collapse
Ultimate Juice €3.49 (about $4.81 CDN?)
The Ultimate battery saver!
Enables advanced features for JuiceDefender:
- WiFi control with Location
- all schedule intervals
- night, peak, weekend schedules
- unlimited apps
- and more!
Click to expand...
Click to collapse
It does not have gingerbread support yet, so those with CM7 are out of luck.
Despite purchasing Ultimate Juice, I uninstalled it as I felt the negatives outweighed positives. I also don't believe the 1.75x or 2x ratings, it always gives you this at the start but that seems to drop away.
Sent from my Desire HD using XDA Premium App
Basil3 said:
Despite purchasing Ultimate Juice, I uninstalled it as I felt the negatives outweighed positives. I also don't believe the 1.75x or 2x ratings, it always gives you this at the start but that seems to drop away.
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
I agree, I also tried, and don't like it, not so good as ANDROID ASSISTANT (12 FEATURES) from Aaron, and its free, very happy and so many extras, can easly manage 2 days, or one in heavy use, very pleased with program..
Basil3 said:
Despite purchasing Ultimate Juice, I uninstalled it as I felt the negatives outweighed positives. I also don't believe the 1.75x or 2x ratings, it always gives you this at the start but that seems to drop away.
Sent from my Desire HD using XDA Premium App
Click to expand...
Click to collapse
Exactly what are the negatives you had experienced?
m7svk said:
I agree, I also tried, and don't like it, not so good as ANDROID ASSISTANT (12 FEATURES) from Aaron, and its free, very happy and so many extras, can easly manage 2 days, or one in heavy use, very pleased with program..
Click to expand...
Click to collapse
I have never heard of this program, going to check it out, who knows it may make me switch.
I've used juice defender for about a year now though when I bought my milestone, and now with my dhd. Unfortunately I have been switching roms and ran into a few problems the past few days so I have not been able to check the difference between off/on using juice plotter. With my milestone it took me from ~12-24hrs to ~24-36hrs
I've used juice defender for about a year now though when I bought my milestone, and now with my dhd. Unfortunately I have been switching roms and ran into a few problems the past few days so I have not been able to check the difference between off/on using juice plotter. With my milestone it took me from ~12-24hrs to ~24-36hrs
Click to expand...
Click to collapse
Which settings are you using with JuiceDefender ?
I don't really see what Android Assistant(12 features) does except be a task killer and monitor in one place?
smurcoch said:
Exactly what are the negatives you had experienced?
Click to expand...
Click to collapse
Main negative for me was delay in messages in Google talk coming through when you start switching the phone's connection off and on. I'm a heavy Google talk user, its the main way I keep in touch with my girlfriend when I'm away, so it just wasn't working for me.
On top of that, I didn't see any major battery life improvements. For me, the major dictator of battery life has been hands on, screen on time with the phone. I usually get 4-5 hours display on time from a charge, and juice defender didn't seem to make any huge impact on this.
Sent from my Desire HD using XDA Premium App
mathewr said:
I don't really see what Android Assistant(12 features) does except be a task killer and monitor in one place?
Click to expand...
Click to collapse
Just put in to search Aaron, and should be second from top.., its all in one, very useful tool ta have..., enjoy..
Basil3 said:
For me, the major dictator of battery life has been hands on, screen on time with the phone. I usually get 4-5 hours display on time from a charge, and juice defender didn't seem to make any huge impact on this.
Click to expand...
Click to collapse
Juicedefender (JD) doesn't improve online screen time. It works by intelligently switching off the phone's radios (data, wifi).
My phone is in my pocket right now, switched off, with all radios off, and the battery is running down much more slowly than it would otherwise. JD occasionally switches on one of the radios to get tweets, e-mails, FB updates etc. But when I switch on the screen, it permanently enables one of the radios so that I can actually use the thing.
But, sure, JD doesn't improve the total online screen time. It can't. Nor can any other piece of software. The alternative is let the battery run down constantly. And I have never came across a phone that depletes its battery so fast when it is switched off.
1 day and 18 hours - Last unplugged.
I lost 71% of my battery.
In this 71% percent
'Inactive' used 25.56% (I always shut my phone off when I go to sleep so I won't be spammed/mailed/whatsapped or something.
Screen used: 17.25%
Standby: 14.91%
Media: 6.39%
android: 2.84
ping 2.13
mail 1.42/
This all makes the 71%.
I am confused since I used my mail about half-1 hour a day. I listen to music for 2 hours, I played Angry birds for about 10 minutes and the web for about 15-30 minutes.
But I don't mind I (L) the batterylife. Someday's I call for hours but when I use it hardcore (2-3 hours of calling, 1 hour web, 1-2 hours mail, 30minutes of messages etc) my battery should go for about 30 hours.
bobbyelliott said:
Juicedefender (JD) doesn't improve online screen time. It works by intelligently switching off the phone's radios (data, wifi).
My phone is in my pocket right now, switched off, with all radios off, and the battery is running down much more slowly than it would otherwise. JD occasionally switches on one of the radios to get tweets, e-mails, FB updates etc. But when I switch on the screen, it permanently enables one of the radios so that I can actually use the thing.
But, sure, JD doesn't improve the total online screen time. It can't. Nor can any other piece of software. The alternative is let the battery run down constantly. And I have never came across a phone that depletes its battery so fast when it is switched off.
Click to expand...
Click to collapse
I realise it doesn't improve phone usage time, but that's my point. Phone usage time is the biggest dictator of battery life. A heavy user is still going to chew the battery in well less than a day.
I also don't think the phone uses much battery when not in use. If you don't use the phone it will last for days with juice defender or without....but most people charge every night so its a non issue.
Sent from my Desire HD using XDA Premium App
I think that we have established that there are two types of Desire HD in current use. The one that is actually available to purchase, which runs down in 4-5 hours of online screen time, and the magic one that is available from La La Land, which runs for 17 days and can be used to power entire cities.
bobbyelliott said:
I think that we have established that there are two types of Desire HD in current use. The one that is actually available to purchase, which runs down in 4-5 hours of online screen time, and the magic one that is available from La La Land, which runs for 17 days and can be used to power entire cities.
Click to expand...
Click to collapse
I am on official 1.72 rom, and phone is holding with easy usage 2 days = on whole night, never swich off, only bluetooth, gps and wifi on when I need, not good 3g here, then is on only gsm, when I leave everything on = wifi, bluetooth, gps, (+ playing tank hero, stupid zombies and x construction ) gsm only and screen on 25 % hold for 20 - 22 hours, only what I use is android assistant by Aaron, and I am very happy with it. If is phones battery going down quickly can be faulty rom, with touch hd I tried a lot roms and few killed battery in 2 - 3 hours...
I think that Juice defender is alright. But most of the stuff you can do manually (turning screen brightness down, turning wifi off), it just merges it all into one place. I'm still looking for the best way to conserve my phone's battery. As I get 1 day out of it with normal use and 2 days with minimal use
If you know how to calibrate battery, it's way more beneficial than Juice Defender. There's a tutorial floating in the Dev section i think.
I just want to know what kills the battery the most on your nexus s
........and do y'all use auto brightness
pkilla said:
I just want to know what kills the battery the most on your nexus s
........and do y'all use auto brightness
Click to expand...
Click to collapse
If you have the RGB multipliers on the voodoo app to full and brightness on full you will get 2:30 mins lollol, found that out at uni yesterday;P
But that was heavy usage as well But i could see everything on the screen in direct bright sunshine)
Biggest killers are things like powerAMP(but worth it), virus scanners, anything you have syncing under 1 hour...
I never use auto brightness
Just common sense stuff dude really
JD
JupiterDroid said:
If you have the RGB multipliers on the voodoo app to full and brightness on full you will get 2:30 mins lollol, found that out at uni yesterday;P
But that was heavy usage as well But i could see everything on the screen in direct bright sunshine)
Biggest killers are things like powerAMP(but worth it), virus scanners, anything you have syncing under 1 hour...
I never use auto brightness
Just common sense stuff dude really
JD
Click to expand...
Click to collapse
I'm still on stock 2.3.2 not rooted so I don't got any of that voodoo **** but I guess auto brightness does
More damage then help
3g data is a big one. You can switch the phone to 2g when your not using the internet or sending and receiving pictures. YouTube / videos, and music are the main killers. If you limit the use and use SETCPU to underclock the phones processor then you'd be fine.
I normally get about 14-15 hours from moderate use with 3g data, GPS setting and auto brightness all on. In my opinion that is excellent especially considering what the phone can do.
Sent from my Nexus S using XDA Premium App
OuncE718 said:
3g data is a big one. You can switch the phone to 2g when your not using the internet or sending and receiving pictures. YouTube / videos, and music are the main killers. If you limit the use and use SETCPU to underclock the phones processor then you'd be fine.
I normally get about 14-15 hours from moderate use with 3g data, GPS setting and auto brightness all on. In my opinion that is excellent especially considering what the phone can do.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
what? i get 24 hours+ with 3G (HSDPA) on all day. this is only true depending on your location, if you're in a place with weak 3G signal, then yes it'll drain.. but that applies to anything. if you have weak service, it'll stress more on the radio causing more battery to be used.
SetCPU: Profiles will cause phone to reboot/shut down etc etc. All sorts of problems can happen. And OP said he's not rooted so this is not an option.
My brightness is set to 0.00%
the screen is by far the biggest battery drain, nothing else comes close!
RogerPodacter said:
the screen is by far the biggest battery drain, nothing else comes close!
Click to expand...
Click to collapse
not if you use all black
That's true that nexus s screen be eating up the battery I got mine on
medium I guess the best way to go is 00% at least at work.... at medium I get
The most 10hr from like 6am to 5pm y'all dudes need to stop
Lying saying y'all get a whole 24hours with heavy use that's bull****.
...
pkilla said:
That's true that nexus s screen be eating up the battery I got mine on
medium I guess the best way to go is 00% at least at work.... at medium I get
The most 10hr from like 6am to 5pm y'all dudes need to stop
Lying saying y'all get a whole 24hours with heavy use that's bull****.
...
Click to expand...
Click to collapse
Yeah, I definitely don't understand how people claim 24 hours on heavy use. I get about 14 hours on moderate use.
Sent from my Nexus S using XDA Premium App
OuncE718 said:
Yeah, I definitely don't understand how people claim 24 hours on heavy use. I get about 14 hours on moderate use.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
no one ever said heavy use.. moderate use, i could go on for 24 hours+ easily.
its not "bull****" all you have to do is:
A) Apps with syncing (reduce them to 2 hours+ rather than every 10min/30m/1hour)
B) USE BLACK WALLPAPERS! this is a must. white on the Nexus S (or any Super AMOLED screen) is absolutely kryptonite
C) Flash a custom ROM + Netarchy's 1.3.0.2 CFS Kernel. (This is a must as well)
D) GPS/WiFi/BT off.
E) Possibly recalibrate your battery.
http://forum.xda-developers.com/showthread.php?t=1031531 Attached is your proof. NSCollab is pretty much CM7 + some minor modifications.
Now can y'all stop being disrespectful? We're not here to say our battery lasts over 24 hours+ just to mess with your head and make you feel bad. It's the truth. You just need to do these little small things to get the best out of your battery.
zephiK said:
no one ever said heavy use.. moderate use, i could go on for 24 hours+ easily.
its not "bull****" all you have to do is:
A) Apps with syncing (reduce them to 2 hours+ rather than every 10min/30m/1hour)
B) USE BLACK WALLPAPERS! this is a must. white on the Nexus S (or any Super AMOLED screen) is absolutely kryptonite
C) Flash a custom ROM + Netarchy's 1.3.0.2 CFS Kernel. (This is a must as well)
D) GPS/WiFi/BT off.
E) Possibly recalibrate your battery.
http://forum.xda-developers.com/showthread.php?t=1031531 Attached is your proof. NSCollab is pretty much CM7 + some minor modifications.
Now can y'all stop being disrespectful? We're not here to say our battery lasts over 24 hours+ just to mess with your head and make you feel bad. It's the truth. You just need to do these little small things to get the best out of your battery.
Click to expand...
Click to collapse
Who's being disrespectful? Did I say anything disrespectful? I can believe 24 hours on moderate use while doing the things you mentioned.
Sent from my Nexus S using XDA Premium App
adb logcat people!
Pretty simple: plug in phone to pc and open up a command prompt and type adb logcat
If you can't keep up with the lines running then you got issues
I ended up uninstalling crap loads of unnecesary apps that were wasting resources... getting a day and a half now
OuncE718 said:
Who's being disrespectful? Did I say anything disrespectful? I can believe 24 hours on moderate use while doing the things you mentioned.
Sent from my Nexus S using XDA Premium App
Click to expand...
Click to collapse
The OP.. not you; just the first part was meant towards you. sorry
That's true that nexus s screen be eating up the battery I got mine on
medium I guess the best way to go is 00% at least at work.... at medium I get
The most 10hr from like 6am to 5pm y'all dudes need to stop
Lying saying y'all get a whole 24hours with heavy use that's bull****.
...
Click to expand...
Click to collapse
technically speaking the phone can last several days in standby
Push email/gmail on 3g kills the battery pretty fast.
Push email (exchange) + push gmail on 3g destroys the battery
So if you "push" sync anything (email, twitter, latitude etc) on 3g, you can simply forget about a decent battery life.
Sent from my Nexus S using XDA Premium App
pkilla said:
That's true that nexus s screen be eating up the battery I got mine on
medium I guess the best way to go is 00% at least at work.... at medium I get
The most 10hr from like 6am to 5pm y'all dudes need to stop
Lying saying y'all get a whole 24hours with heavy use that's bull****.
...
Click to expand...
Click to collapse
Just because you haven't been able to achieve it doesn't mean people are lying to you. I have a thread about my battery life lasting 24hrs+ and I still had 16% when I put it on the charger. And that was with 2.5 hrs of calling, the screen on for a couple hours, syncing, facebooking, video recording and uploading, and some other things. Maybe you should take a look at that thread and see what you can do differently instead of being disrespectful.
In case you have not try this, you can try disable Location service from 'Location & Security' settings. Turn off both 'Use wireless networks' and 'Use GPS satellites'.
This worked for me.
zephiK said:
The OP.. not you; just the first part was meant towards you. sorry
Click to expand...
Click to collapse
Ok, thanks for clearing it up and I do agree with your previous post. It definitely makes sense.
Sent from my Nexus S using XDA Premium App
It's a combination of all of the above.... location and push email (other than gmail..I have my work email updating every hour) and bright colored screens are the 3 killers I found...and obviously staying on 3G adds to it.. I can last a good 17-19 hours on mostly 2G (maybe 3G when downloading heavy stuff), with just above average use... that number is good enough for me...charging overnight is all I need.. I also have weatherbug updating every 2 hours...
oh and make sure u don't have that init bug... using OS monitor, check if /init keeps fluctuating...if so, check the debug mode in your settings,.. always have the box checked and you will notice a huge difference
funny how people freak out when someone has done something that they perceive as unachievable... just like when android was ported to the HD2 XD everyone that saw mine was like WTF!? now its all normal and expected @[email protected]
but just as everyone has been mentioning, there are ways to get 24+ hours of battery life, its just all the small things that make a difference =)
Battery Optimization Discussion Thread
CM9 beta: Android 4.0.3 for Samsung Epic 4G
This thread is ONLY to discuss issues related to power management and battery life on CM9 on the Epic 4G. Battery tips are regularly summarized in the official Battery Optimization Guide. Please read the guide before posting to this thread.
CM9 Discussion Threads
User Support, Questions & Answers Thread
Battery Optimization Discussion Thread
Tips & Customization Discussion Thread
Development Discussion Thread
its good practice to save battery to turn refresh interval for apps that access the web for updates such as social media, new readers, etc to manual to help save battery life as most of these apps refresh on a pretty regular interval and defiantly eat up alot of battery
If you notice especially high battery drain and recently used your GPS or Camera they can occasionally stay on with no visible signs. Also please remember the battery stats is HIGHLY inaccurate. A Phone reboot usually fixes this.
Never keep apps like Skype, IRC, etc that stay running and keep your CPU on they drain battery especially fast!
One big battery saver is to not wake your phone to just check the time. Let the CPU stay in deep-sleep as long as possible to preserve power until you actually need your phone for something.
One MAJOR thing to save power is DO NOT MESS WITH CPU SETTINGS!
Do not use 3rd party apps like Voltage Control or SetCPU or even the built in Performance settings as modifying the settings will increase the minimum clock to 200MHz which will greatly reduce battery life than NOT messing with them. This is a known issue and will be addressed in a future release!
dyehya said:
One MAJOR thing to save power is DO NOT MESS WITH CPU SETTINGS!
Do not use 3rd party apps like Voltage Control or SetCPU or even the built in Performance settings as modifying the settings will increase the minimum clock to 200MHz which will greatly reduce battery life than NOT messing with them. This is a known issue and will be addressed in a future release!
Click to expand...
Click to collapse
If you DO decide to run a custom kernel, (NOT, I repeat NOT recommended or supported by CM9 devs) I'd suggest Control Freak. I ended up with a 200mhz min, and with that app managed to get deep sleep and 100mhz back. WITH uv and some minor oc. My battery life is great.
Head on over to the app thread here: http://forum.xda-developers.com/showthread.php?t=1072403
Another thing that can save battery, Screen Filter from the Market (Play Store now I guess) can dim our screens lower than the lowest stock increment. Useful for dark environments. (Movies, night outside etc.)
This should be obvious, and has been stated already, but it bears repeating: TURN OFF DATA AND ALL OTHER MODEMS if you're not using them.
Thanks to all the devs and everyone who contributes.
YES!!! It seems a little bit more snappy or is it just me?
And thanks for the advice not to run custom kernels...
Without a doubt, the biggest battery saver for me, is to turn off data until I want to use it.
I simply cannot believe the difference. Makes me think I'm gonna have to go out and get Juice Defender, and let it turn off data when I put the phone to sleep, it is just that dramatic.
I can call text, and play hours of games, and still have the battery have more juice remaining than it did over the same timeframe with just a call or two for usage with the data on.
tabormeister said:
Another thing that can save battery, Screen Filter from the Market (Play Store now I guess) can dim our screens lower than the lowest stock increment. Useful for dark environments. (Movies, night outside etc.)
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Rather than installing an additional app to control brightness, why not just tweak the settings yourself?
System Settings / Display / Automatic Backlight
Check "Use custom" and set a lower Screen dim level. Use "Edit other levels..." to adjust the steps for auto brightness if you use that feature.
This is a fantastic feature if you use the phone in low light conditions.
DCRocks said:
Without a doubt, the biggest battery saver for me, is to turn off data until I want to use it.
I simply cannot believe the difference. Makes me think I'm gonna have to go out and get Juice Defender, and let it turn off data when I put the phone to sleep, it is just that dramatic.
I can call text, and play hours of games, and still have the battery have more juice remaining than it did over the same timeframe with just a call or two for usage with the data on.
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Click to collapse
This first and foremost for me.
I took my phone to a basketball game the other night and turned data off. From when I left work to when I got home was about 7 hours, and I didn't plug in for another few hours later and still had some juice. Compare this to last night when I went to class and had my phone in my pocket with 4g on for a few hours, I arrived home and my phone died 15 minutes later. Total time elapsed, 3 hours 46 minutes.
Particularly 4G data is offensive in it's battery consumption.
I have also found that putting the display on Auto Brightness saps my battery. I just adjust it whenever I need to, keeping it on the lowest setting most of the day since I'm inside a lot.
The mmc_delayed_work and deleted_wake_locks are driving me crazy. I know they've been reported as "false blames," but something, whether MMC or otherwise, definitely causes seemingly unnecessary wake locks, and there is a very clear pattern between high report percentage and battery drain.
I don't mean to take away from the optimizations suggested; they're definitely useful if you're looking to stretch the battery life out longer than typical stock capability. But for many of us, something wakes the phone a little too often, and it's very difficult to debug without disabling every single application and testing one at a time.
I guess the point is, has anyone else found a better way to figure out these wake locks?
Why is awake time in Android OS always more than double the display on time? That sounds like serious wake locks. What can I do to reduce that?
Sent from my SPH-D700 using xda premium
Don't overlook the AudioOut_1 wakelock. Its my number one offender at the moment.
Minimize it by turning off screen selection sounds... System Settings / Sound / Touch sounds.
We need to figure out what the problem is with that.
On the good side, my mmc and deleted wake locks are negligible so far on beta.
Liner81 said:
Don't overlook the AudioOut_1 wakelock. Its my number one offender at the moment.
Minimize it by turning off screen selection sounds... System Settings / Sound / Touch sounds.
We need to figure out what the problem is with that.
On the good side, my mmc and deleted wake locks are negligible so far on beta.
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Click to collapse
Same for me. Think due to notification sounds mostly.
muyoso said:
Same for me. Think due to notification sounds mostly.
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That's probably right. The only time I ever see that is playing music without headphones. I almost always have my phone on vibrate
Sent from my SPH-D700 using xda premium
I get 39 minutes for vbus_present in the 6 hours since unplugged.
Sent from my SPH-D700 using xda premium
Just want to say THANK YOU for this thread, and THANK YOU for such am awesome rom.
If I might be so bold to suggest, put a section on your page for "If you get worse battery life on this rom than your last rom, it may not be because of a problem with this rom, it may just be that way and there may be nothing that can be done about it because that's just the way it is."
I have had no problems with battery life, fwiw.
Sent from my SPH-D700 using XDA
"Without a doubt, the biggest battery saver for me, is to turn off data until I want to use it."
Agreed... Right now 25%, 8 days 8 hours, 3 h 37 m awake, screen on 1 h 43 m
XXCoder said:
"Without a doubt, the biggest battery saver for me, is to turn off data until I want to use it."
Agreed... Right now 25%, 8 days 8 hours, 3 h 37 m awake, screen on 1 h 43 m
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8 days? Airplane mode? Or is your battery over 9000....mah?
Sent from my SPH-D700 using xda premium
XXCoder said:
"Without a doubt, the biggest battery saver for me, is to turn off data until I want to use it."
Agreed... Right now 25%, 8 days 8 hours, 3 h 37 m awake, screen on 1 h 43 m
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Pics or it didn't happen! And here's a battery tip. Don't install facebook or messenger. Ever.
Sent from my SPH-D700 using Tapatalk
Just spend a day with CM9 Beta 0. It's a great rom with lots of promise. Great feel and look, very fast, ICS is fantastic.
That said, the battery life is not there yet. I basically set it up the same way I set up the stock rom. Email on Exchange push notification, EVERYTHING ELSE on manual sync. On a stock rom I usually am at about 40% after 12 hours of moderate use. About 5% drop an hour. On this rom I was at 75% after 2 hours. About 12% an hour. This is with the "stock" 1800 mAh battery.
If the devs can match the battery life of stock GB I'll be back. It really is a great rom, I just can't recharge twice a day, and I'm not carrying around a 3500mAh battery in my pocket either.
Seriously, great work to all the devs who have taken it this far. Looking forward to the next couple releases.
DCRocks said:
Without a doubt, the biggest battery saver for me, is to turn off data until I want to use it.
I simply cannot believe the difference. Makes me think I'm gonna have to go out and get Juice Defender, and let it turn off data when I put the phone to sleep, it is just that dramatic.
I can call text, and play hours of games, and still have the battery have more juice remaining than it did over the same timeframe with just a call or two for usage with the data on.
Click to expand...
Click to collapse
I use JD for this and run it in extreme mode, which disables data until you physically enable it yourself (and after you enable it, it will disable again when the screen is off). Using it, I get a huge improvement in battery life, especially on CM9. It's kind of annoying having to enable it everytime you turn the screen back on, especially since it takes 4-5 seconds before data works again, but if it can give me the type of battery life it does, I am all for it. Other than the slightly noticeable lag I get compared to CM7 and other ROMs such as CleanGB (I know I can install supercharger, but I am talking pure stock CM9 here), I have no problems at all. Major props to all the developers involved for breathing new life into our OG Epics.