Develop Bugs

48 hours of Battery life and still 45% left!!!

Hi Everyone,
I thought id share the amazing battery life im having, ive had it going for 48 hours so far and still got 45% of my battery still left, ill tell you all my set up and i wish you can get the same.
Installed LeeDroids rom (1.9a) which is absolutely amazing i must say, i love it.
Got the new radio 32.44.00.32u_5.09.05.30_2.
SetCPU running and have the normal standby on the phone at 642mhz and 245mhz when the screen is off.
I also have a task killer on set to kill most apps when the screen turns off and i have read about androids memory management but it makes me feel better when i run it and i personally think it helps.
Finally, and possibly the most important is an app called AutoKiller that interacts with androids internal memory management system and i have that set to ultimate.
I think thats it, and i have been using the phone averagely, and have turned off wifi and mobile internet and only use it when i need it.
Good luck everyone, hope this is helpful in someway.

It was interesting to read until you said this
pp84 said:
have turned off wifi and mobile internet and only use it when i need it.
Click to expand...
Click to collapse
I personally refuse to turn off internet (wifi or mobile, same thing) on my SMARTPHONE. Cmon, that is why I bought it, because of the internet, and the fun things to do on it. If I use it for calls/sms only, I would have gotten something much cheaper.
Anyway, with hard usage my battery lasts for like 20 hours, and that is enough for me. I don't mind connecting it to a charger before I fall asleep, and disconnecting it when I wake up. Still I use the 1GHz CPU and the options the phone has fully

pp84 said:
... have turned off wifi and mobile internet and only use it when i need it.
Click to expand...
Click to collapse
ljesh said:
I personally refuse to turn off internet (wifi or mobile, same thing) on my SMARTPHONE. Cmon, that is why I bought it...
Click to expand...
Click to collapse
I'll have to agree with ljesh on this. If you deprive your smartphone of internet access, you've just turned it into a feature-phone.
But, I think you should turn off WiFi when you're not using it. That's just the smart thing to do...

Is there a battery of the same size with a higher capacity?
Sent from my HTC Desire using XDA App

No, there isin't.

Just a quick update i ended up getting 63 hours out of one charge!
And i dont need to read what the weather is every 5 minutes thats the reason i dont generally keep mobile internet on... I just look up at the sky it tells me exactly what i need to know!

Well, I have tried this and wow - what a difference, lol.
I am mostly around WiFi connections all day, so just use that instead for all my syncs. Mobile internet is used when I am out of range for short periods of time.
Thanks for the tip - works wonders.

[sarcasm]
1. Turn on Airplane mode all the time and don't wake the device from standby. According to the specs, the device will last up to 340 hours (ie, over 2 weeks).
2. Leave the device completely off. It will be months before your battery completely drains.
[/sarcasm]
Don't mind me, I'm just joking around.
But seriously, it would be interesting to know the battery life of a device set to your specifications but with mobile internet on. Turning it off, just seems like cheating, similar to how CPU overclock enthusiasts achieve crazy clockspeeds with liquid nitrogen cooling. Sure, you achieved your milestone, but is that really how the device is intended to be used?

ohyeahar said:
[sarcasm]
1. Turn on Airplane mode all the time and don't wake the device from standby. According to the specs, the device will last up to 340 hours (ie, over 2 weeks).
2. Leave the device completely off. It will be months before your battery completely drains.
[/sarcasm]
Don't mind me, I'm just joking around.
But seriously, it would be interesting to know the battery life of a device set to your specifications but with mobile internet on. Turning it off, just seems like cheating, similar to how CPU overclock enthusiasts achieve crazy clockspeeds with liquid nitrogen cooling. Sure, you achieved your milestone, but is that really how the device is intended to be used?
Click to expand...
Click to collapse
Why do you count network off as cheating. Why should it be on if you don't need it?
I am leaving network off most of the time, just switch it on when I want to surf or update my calendar/emails. Use Wifi whenever available. And SetCPU to minimize clock speed while the display is off.
Most email come from Softbank Japan thru a MMS type email application. Its a push mail system and you do not need to have network on for receiving it.
With this settings I get up to 24h, depending on who long I travel and read ebooks.

Not my intention to sound antagonistic. "Cheating" may be too strong of a word. Here's what I'm trying to say.
Obviously, it's up to the user to decide how to use the device. But what's also obvious is that the device cannot be fully utilized without an always-on connectivity.
Without an always-on connectivity, a lot of the widgets and applications instantly become useless or crippled.
Sure, not everyone uses widgets or applications that require always-on connectivity. But I'm willing to wager that a majority of the Desire user community utilizes such widgets and applications; so turning off mobile internet is just not an option for these people.

ohyeahar said:
Not my intention to sound antagonistic. "Cheating" may be too strong of a word. Here's what I'm trying to say.
Obviously, it's up to the user to decide how to use the device. But what's also obvious is that the device cannot be fully utilized without an always-on connectivity.
Without an always-on connectivity, a lot of the widgets and applications instantly become useless or crippled.
Sure, not everyone uses widgets or applications that require always-on connectivity. But I'm willing to wager that a majority of the Desire user community utilizes such widgets and applications; so turning off mobile internet is just not an option for these people.
Click to expand...
Click to collapse
I tend to agree.
I need the network to always be on, and so leave it so - though sometimes, I will put the phone into airplane mode overnight if I remember. Generally though I don't as I usually charge overnight anyway.
On Sunday night though, I'd charged the phone during the day and so didn't charge overnight. I used the phone quite heavily during the day, and in the evening watched about 3 hours worth of DivX video via RockPlayer. My phone complained of less than 15% charge after 26 hours, which to me was quite impressive given my usage, and I don't use *any* tweaks such as SetCPU or a task killers (which are placebos anyway).
Personally, if I can get a full day from my phone I'm happy - and I can do that with the Desire without having to do anything.
Regards,
Dave

[Q] juice defender

Aight so I downloaded juice defender free last night cause I've been having battery heat problems.....but it shuts off my 3g connection when the screen goes off and I can't seem to find the setting for it....I use Pandora radio so this is a bit of a *****.....any solutions?
Sent from my Incredible using XDA App

Thats pretty much the only thing Juice Defender free does that can save your battery, that and turning off wifi too. So if you disable it why even have Juice Defender installed? I too tried the free version for about 2 days and could never get my wifi or 3g to come back on so I uninstalled it and thanked god I hadn't paid $10 for the paid version. IMO its crap.

Juice defender is terrible. It kills your battery. well thats my experience...
Sent from my ADR6300 using XDA Premium App

I was using it mainly because I wanted to see if it would help my temperature problems but it didn't....it just effed me up more
Sent from my Incredible using XDA App

Terrible app. If it does anything then it kills the battery... Brings android system to the top of the usage list, because it shuts off 3g and wifi..
Sent from my ADR6300 using XDA Premium App

Screen is still the top on my usage.
I have the paid version. It gives you the ability to lock items (like Pandora) "on" for data usage. Then, they don't get killed.
I had amazing battery life with it on my D1. Jury is still out on the Incredible. I'm still working through ROMs and Kernels.

I use it also. It has this new feature that you can tell it your local wireless and leave it alone. Problem is it doesn't work. Keeps shutting off my wireless when I'm using it! Very frustrating.
Also their developer is not very accessible. They want all issues solved through their forums. I hate that...The best software also has an accessible support system.
The one good thing I will say about it is it has the potential for taking over all aspects of managing your phone. A one stop shop. Just not there yet...

I used to use Juice Defender with 2.1 and found that it helped battery life. However, with Froyo, it just made the phone unstable. (It'd just sponaneously reboot sitting on my hip 2-3 times a day.) After uninstalling all is well.
A co-orker's Sprint phone had the same flakyness until he uninstalled JD.

Wild! I have never had random reboots. But, we all know how unique these devices are... even between the same model.
With warm twopointtwo, it doesn't seem to be turning on all the time... or warm is somehow killing it.
dbaps - are you still in 'training' for the wifi? It takes JD a couple of times to fully learn your location (based off of towers) and remember that as a wifi location. Check under the settings...it'll tell you what percentage of training it has completed.

Those of you who say its crap obviously dont have it configured correctly. I bought "ultimate juice" and when you go into the custom or aggressive profiles you can tweak everything until your heart's content! It still seems to shut off data when Im streaming stuff with slacker and connected to wifi, even though I tell it not to. Other than that it definitely will give you a few extra hours if you spend the time to configure it properly.

Terrible app!
brando56894 said:
Those of you who say its crap obviously dont have it configured correctly. I bought "ultimate juice" and when you go into the custom or aggressive profiles you can tweak everything until your heart's content! It still seems to shut off data when Im streaming stuff with slacker and connected to wifi, even though I tell it not to. Other than that it definitely will give you a few extra hours if you spend the time to configure it properly.
Click to expand...
Click to collapse
There is no correct configuration to this app. That is why it is called "Custom". The reason it is CRAP is due to the reason you list as a problem among numerous other features that don't work.
Seriously, why have an option to automatically tweak CPU values if the option doesn't work with 99% of the kernels on the market, which also includes the STOCK kernel?
Yeah, it's a GREAT app!

pronghornrunner said:
Wild! I have never had random reboots. But, we all know how unique these devices are... even between the same model.
Click to expand...
Click to collapse
True. For clarity's sake, I was using JD free so I don't know if any other version would have been better or worse. It's possible that the complex WiFi network at work (multiple APs per floor with a centralized controller) confused things.
My phone is a droid incredible, the co-worker's is a Sprint Epic. Different symptoms - he had phone lockups requiring battery removal to recover. Rooted, re-ROMed and still crashing until Juice Defender removed.

If you use Ultimate Juice and set up things correctly. This programs rocks.
It will turn on and off your data (3g and wifi) when you need it (according to the conditions you set).
It takes a little bit of reading and intuition, trial and error, and PATIENCE.
Use it for more than 1 day. Your phone usage varies day to day.
Again, read the text, THINK, and setup the conditions according to the way YOU need them.
I get at least 20-40% more battery depending on how I use my phone. I rarely charge mid-day any more and I can count on my phone having battery throughout the most useful hours of the day.
On light to moderate use, I get at least 14-18 hours. Just for fun, I once tested it and got about 29 hours before the battery hit 5%. That's with a little texting and a few phone calls. I use the stock, standard capacity battery as well.
SET IT UP RIGHT!

I've had no issues with JD running on 2.2.
Set on Aggressive. Only annoying thing is that I get the error notification icon for Weatherbug Elite every two hours because data is shut off.

First - I've got the most recent JD installed. The old one was kind of lame. People have made some good points, but there is a lot of incorrect information in this thread...
It works. If you are *NOT* actively using your phone, it will save your battery by disabling communication you don't need. I can go to bed at 80%, wake up 7 hours later at 79%, maybe 78% at the worst case.
If you are using your phone, it's quite nice - it comes on quickly - and manages my network well (at home, uses WiFi, elsewhere - 3G).
It's not $10.
My wife is using the free version and has had zero problems.
I've never tried aggressive, but maybe I will.
I cant comment on the CPU stuff - never used that.
Scott

I've never had a problem either. I'm running Skyraider 3.5 with incredikernal 2.6.32.27. I have the free version set on advanced. The best battery lift I've gotten with light phone use, texting, data syncing and browsing was 72 hours. Same use with stock rom and kernal my best was about 18 hours before I needed to charge. I know everyone is different, but that's my experience.

spatton said:
First - I've got the most recent JD installed. The old one was kind of lame. People have made some good points, but there is a lot of incorrect information in this thread...
It works. If you are *NOT* actively using your phone, it will save your battery by disabling communication you don't need. I can go to bed at 80%, wake up 7 hours later at 79%, maybe 78% at the worst case.
If you are using your phone, it's quite nice - it comes on quickly - and manages my network well (at home, uses WiFi, elsewhere - 3G).
It's not $10.
My wife is using the free version and has had zero problems.
I've never tried aggressive, but maybe I will.
I cant comment on the CPU stuff - never used that.
Scott
Click to expand...
Click to collapse
When I tried it back last Fall the paid version was indeed $10, its now down to $5. Which I still believe is way too much for this app. My 3g would not turn back on no mater what I did and yes I read the tutorials many times and had it set properly.

spatton said:
First - I've got the most recent JD installed. The old one was kind of lame. People have made some good points, but there is a lot of incorrect information in this thread...
It works.
Click to expand...
Click to collapse
Perhaps for you. For me (stock ROM on my dinc) it made the phone unusable. Calling that observation "crap" or "lame" is convenient, but doesn't reflect the experience that I had (and which others had).
Again, with Android 2.1 JD did help a great deal. With 2.2, it didn't help battery life but made the phone crash. This was not a positive trade-off.
With froyo, I can go two days on my incredible between charges given light usage without it. Why put up with the instability just to get a few extra hours of battery life?
For example, I'm currently at 62% after 15 hours since unplugged with moderate usage of the phone, with WiFi and Bluetooth enabled. I could just turn off Bluetooth except when I'm in the car, but I doubt it'd buy me more than a few extra hours of useful life.

Juice defender has caused me multiple problems. Was the source of phantom call drops and sleep of death!! As soon ad I removed it, problems solved.
Sent from my ADR6300 using XDA App

Also corrupted two SD cards, losing all my files, because of sleeps and reboot caused by JD. Does not play well with Z and HD roms at all. Works at first but soon became the cause of a lot of problems.
Sent from my ADR6300 using XDA App

JuiceDefender on Nexus

Has anyone tried this out? I just put it on and have not gone through a battery cycle. Trying to see if it will help with battery life.
Running leaked radio on ARHD 2.1.2
Sent from my Galaxy Nexus using XDA App

Some people swear by it, but then again some people believe a supernatural being exists because someone said so.

Yeah I've used it since I got the Nexus and it works great. Does what it's supposed to do. I don't believe in supernatural beings though.
Full disclosure; I have had this bug which manifests about once every week where the touch screen becomes completely unresponsive in the lock screen and there is no way to unlock the screen or turn the phone off unless I pull the battery. I have this nagging feeling that it might have something to do with JuiceDefender but I haven't confirmed it.
Sent from my Galaxy Nexus using Tapatalk

I purchased JuiceDefender and also Green Power Premium and never really noticed a big difference in battery life against leaving them off and changing wireless profiles.
Getting almost 2 days out of my Nexus so may give them a go once they both fully support ICS just to test.

Chrono_Tata said:
Yeah I've used it since I got the Nexus and it works great. Does what it's supposed to do. I don't believe in supernatural beings though.
Full disclosure; I have had this bug which manifests about once every week where the touch screen becomes completely unresponsive in the lock screen and there is no way to unlock the screen or turn the phone off unless I pull the battery. I have this nagging feeling that it might have something to do with JuiceDefender but I haven't confirmed it.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Disable JuiceDefender for a week and see if that bug still exists. If not, problem solved. You can do the same as juice defender by pushing the multitask button and swipping away any apps you don't want.
Sent from my Galaxy Nexus using Tapatalk

JuiceDefender is not only great for a little energy saving, but also for featured like WLAN by localization and display Brightness configuration.
I used it on the S2 and now on the GN.
On Ics it has some little bugs yet, but it also does seem great job here.
Sent from my Galaxy Nexus using XDA App

I have the basic version of JuiceDefender running on my GN and I swear its making a noticeable difference in battery life.
I have it set to disable my Data connection whenever the phone is locked. It re-enables it when I unlock it, so it doesn't come on when I'm just checking the time. The effect is immediate too so data is there when you need it.
It also comes on once every 30min just to let apps/email sync briefly.
According to JuiceDefender its improved my battery life by 1.7x. I'd be inclined to say its about right...

Star Shadow said:
Disable JuiceDefender for a week and see if that bug still exists. If not, problem solved. You can do the same as juice defender by pushing the multitask button and swipping away any apps you don't want.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Lol it does a bit more than that mate. It's the radio function management I need since I'm always too lazy to toggle them manually. I've been meaning to disable it to test if the lock screen bug would go away but I find it hard to use my phone without it now that I've got so used to it. Now that's it's the Christmas holiday though I might give it a go.
Sent from my Galaxy Nexus using Tapatalk

It made a big difference in battery life but it takes way too long for the device to reconnect to the mobile network when i wake it up. Likewise, it will not allow me to get my emails throughout the day unless I wake it up.

Star Shadow said:
Disable JuiceDefender for a week and see if that bug still exists. If not, problem solved. You can do the same as juice defender by pushing the multitask button and swipping away any apps you don't want.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
The multitask button doesn't kill apps - swiping just removes them from the list. Its more like a recent used apps list - like long pressing the home button on Android 2.x use to be - than a multi task manager showing running apps.
As for juice defender, I bought ultimate, and it was just horrible. Very laggy UI, and felt like it was causing more battery usage itself than saving. The comments for 'ultimate' on the market seem to say the same thing. The free version seems much better, although you don't have as many options. There's also another paid version which is cheaper, but I havent tried it.
Put it this way, I uninstalled it Waste of £4.99 which is a ridiculously hefty price for something that cant even get its UI right.

Chrono_Tata said:
Yeah I've used it since I got the Nexus and it works great. Does what it's supposed to do. I don't believe in supernatural beings though.
Full disclosure; I have had this bug which manifests about once every week where the touch screen becomes completely unresponsive in the lock screen and there is no way to unlock the screen or turn the phone off unless I pull the battery. I have this nagging feeling that it might have something to do with JuiceDefender but I haven't confirmed it.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I can confirm the same behavior on my phone with JD, forcing a battery pull a few times a day. after uninstalling it, I get no more unresponsive screen. I can only conclude that it wasn't playing nice with ics
Sent from my Galaxy Nexus using xda premium

I hope Juice Defenders Team will optimize JD for Android ICS, because I loved the program for its features.
Sent from my Galaxy Nexus using XDA App

i have this on my GNEX and it is awesome.
yeah some little quirks BUT, definitely prolonging my battery due to wifi/mobile data management.
i'm not experiencing the unresponsive issues and stuff you guys are reporting..
maybe its another app????
i'm getting more than 16hrs on my phone.
as for ultimate. no need for that unless you have a rooted phone.
pro is very good.
i picked up th pro version for $0.99 when it was on sale.

JuiceDefender Ultimate
Hi,
I'm using it on my rooted GN 4.0.1, works well.
By using 3G/WLAN management I come up to 25 - 30 hours lasting battery power.
At home and in my office I told JDU (JuiceDefenderUltimate) to switch to those WLAN's and disable 3G there.
I'vnt tested all the other features like cpuspeedcontroll, or something else.
For me it works perfect.
regards
J.M.

kam187 said:
The multitask button doesn't kill apps - swiping just removes them from the list. Its more like a recent used apps list - like long pressing the home button on Android 2.x use to be - than a multi task manager showing running apps.
As for juice defender, I bought ultimate, and it was just horrible. Very laggy UI, and felt like it was causing more battery usage itself than saving. The comments for 'ultimate' on the market seem to say the same thing. The free version seems much better, although you don't have as many options. There's also another paid version which is cheaper, but I havent tried it.
Put it this way, I uninstalled it Waste of £4.99 which is a ridiculously hefty price for something that cant even get its UI right.
Click to expand...
Click to collapse
Steps to prove yourself incorrect:
1) Install OSMonitor
2) Open GMail
3) Go to homescreen and open OSMonitor
4) In the process list, make sure GMail is listed (it should be!).
5) Press the Multitask soft button and swipe away GMail.
6) Check for GMail in OSMonitor and it will have disappeared as it is no longer running.
Magic!
Sorry I'm just on a personal mission to stop this misinformation from being spread.
---------------
On-topic: I've used JuiceDefender Ultimate on all three Nexuses over the years and I certainly think that it makes a big difference by turning wifi off when not in use and turning mobile data off when the screen is off, although I have loads of other settings configured within the app also.

JD Works Great
I have been using JD Ultimate on my Nexus and it works great (I would estimate 1.5 - 2x battery life).
I used the Nexus for a little over a week without JD just to have a set expectations of what my battery life is without JD.
I have not seen any bugs with this up til now.

Chrono_Tata said:
Yeah I've used it since I got the Nexus and it works great. Does what it's supposed to do. I don't believe in supernatural beings though.
Full disclosure; I have had this bug which manifests about once every week where the touch screen becomes completely unresponsive in the lock screen and there is no way to unlock the screen or turn the phone off unless I pull the battery. I have this nagging feeling that it might have something to do with JuiceDefender but I haven't confirmed it.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I get the same issue and I dont get it when I uninstalled Juice Defender
My phone also reboots randomly and I am wondering if its linked toJuice Defender. The reboots only started recently

I use JD free on my GN, although I haven't seen what battery would be like without JD on it. On my Incredible, JD made the difference between not getting though a single day to getting almost 2 days out of my battery. On my GN with JD I'm still only getting about one full day's worth out of it, sometimes not quite a full day.

I am using Juice Defender Plus and it is set to manage it self then WiFi and 3g network. I am using wifi at home and in the office,and the rest -3g
In my opinion....jd plus does worth the money spent.
14 hours and 20 minutes used - 46% of battery left
Sent from my Galaxy Nexus using Tapatalk

Ice Cream Sandwich seems to do a lot of the things that JuiceDefender did on my old phone. For example, data is automatically turned off when you are connected to WiFi. I had it installed for a while, but when I looked at the list of apps that were using the battery (in the Android settings menu) JuiceDefender was listed as using a fair amount of battery. I'm not sure it is worth the hassle on this phone.

Battery Drain

Is there an app or way that conserves the battery power. The phone is still completely stock but it received a firmware update through Tmobile and ever since then the battery gets drained by 4 pm (after all apps are x-ed out and phone is just in standby) the batter drops to around 30 percent... what can I do? I don't think it needs a new battery since its only a few months old... suggestions?

SLP Catalyst said:
Is there an app or way that conserves the battery power. The phone is still completely stock but it received a firmware update through Tmobile and ever since then the battery gets drained by 4 pm (after all apps are x-ed out and phone is just in standby) the batter drops to around 30 percent... what can I do? I don't think it needs a new battery since its only a few months old... suggestions?
Click to expand...
Click to collapse
I dont know how much you use your phone and weather or not you watch movies or download files with Wi-Fi alot but it could seriously drain your battery if you leave things like Wi-Fi, Bluetooth, NFC, Brightness Up, or use live wallpapers.
If not, I would recommend checking your battery against someone elses because I've had a phone before that had a bad battery that could explode and caused me to have battery issues. Make sure your battery isnt swollen at all and if it is make sure you take it out and dont put it back in and go to a Battery+ store nearby and I'm sure they got one for your phone (they come with warranty).

Well my wife and I have the same phone and it does it to both. I don't have signal in my job since they have a Verizon antenna and it blocks our t mobile signal so I don't use it during the day which means the phone is just on stand by for the first eight hours. I make sure I turn off wifi, blue tooth, GPS etc and close all apps....but by the time I get out of work it's at 30-40% power.... both phones were bought this April so was hoping it wasn't/isn't a hardware issue and have to replace the batteries....
Sent from my SGH-T989

This is where the world of rooting and tweaking your android becomes extremely attractive.
There are ROMs that last 1 day + ( that's 24h+ hours of battery)
Only need two things....
1. Patience - to sit, read and closely follow instructions
2. Guts - to take a dive and risk ruining your phone. (Which doesn't happen if you have number 1)
Sent from my SGH-T989 using xda app-developers app

thanks for the reply. Yeah I've been thinking about doing such things, but am a complete noob. Is there a link to a tutorial (from start to finish) on rooting/flashing custom rom in here? All I see is one or two step threads or discussions on different roms?

SLP Catalyst said:
thanks for the reply. Yeah I've been thinking about doing such things, but am a complete noob. Is there a link to a tutorial (from start to finish) on rooting/flashing custom rom in here? All I see is one or two step threads or discussions on different roms?
Click to expand...
Click to collapse
Try this.
http://forum.xda-developers.com/showthread.php?t=1650908
Or this ( more thorough and noobish)
http://theunlockr.com/2011/12/01/how-to-root-the-samsung-galaxy-s-ii-all-versions/
Sent from my SGH-T989 using xda app-developers app

1. juice defender is a start.
The rest all needs rooting really.
2. Build.prop tweaks
3. UV with a custom kernel
4. Lowest screen brightness (doesn't require root)
5. Restrict yourself to 2G networks either using AOKP settings or a build.prop tweak
There are others but this is how I achieve great battery times mostly.
Sent from my SGH-T989 using xda app-developers app

TheLastSidekick said:
1. juice defender is a start.
The rest all needs rooting really.
2. Build.prop tweaks
3. UV with a custom kernel
4. Lowest screen brightness (doesn't require root)
5. Restrict yourself to 2G networks either using AOKP settings or a build.prop tweak
There are others but this is how I achieve great battery times mostly.
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
Thanks for the info:thumbup:
Sent from my SGH-T989

SLP Catalyst said:
Thanks for the info:thumbup:
Sent from my SGH-T989
Click to expand...
Click to collapse
Why not try and find out what is using your battery up first? Try GSAM from the play store, its free for one, easy to use, it will show you what is draining your battery, there are a few paid ones as well, but try the free first , HERE is the direct link to GSAM.
or QR code, just scan it with phone.

SLP Catalyst said:
Well my wife and I have the same phone and it does it to both. I don't have signal in my job since they have a Verizon antenna and it blocks our t mobile signal so I don't use it during the day which means the phone is just on stand by for the first eight hours. I make sure I turn off wifi, blue tooth, GPS etc and close all apps....but by the time I get out of work it's at 30-40% power.... both phones were bought this April so was hoping it wasn't/isn't a hardware issue and have to replace the batteries....
Sent from my SGH-T989
Click to expand...
Click to collapse
That is a very weird situation and try a app that shows the apps using battery. Even check the stock android battery section in settings and see whats getting used. Your brightness should be first since it can really eat your battery if its turned up. I dont think its defective since both your phones are having the same problem but both my parents have the 4.0.4 firmware installed on their T989's without a problem and get decent battery power. I however am using a custom rom with kernel. Did you use the same battery for each phone? or each phone has the same problem with their own devices and their own batteries when getting updated to 4.0.4? If you used your battery on her's I'm assuming the problem may be the battery and you just got unlucky with a defective one.
P.S. I'm assuming 4.0.4 because thats the latest update to ICS for the T989 on T-Mobile.

The battery manager that comes with the phone identifies the display, but I've set it to lowest setting and have a dark background. And yeah both phones have their respective batteries which makes me think it's a software issue.. We just upgraded to the 2.3.6 ( I guess t-mobile is a but behind lol). But I going to try the juice defender tomorrow... It's just while I root the phone and get a custom ROM... (doing my homework before doing anything since it'll be first time)
Sent from my SGH-T989

Those apps wont really help, it basically does what you can do manually, turning off settings or putting them at low usage. Rooting is the way to go, its rather simple, once you do it, you will have wished you done it sooner. Trust me, I was in the same boat, I had just got my phone last december, the wife and I were in Vegas and my battery was horrible, I was taking lots of pictures and video, but my battery was dying. I had no way to charge it til we got back to the hotel, next day was same thing, horrible battery, this was all before ICS even was around for this device. When I got back home, I rooted my phone, to date, I have gotten a best 44 hours out of the phone. I ROM hop so I try out the variety, there is how to's and videos here and youtube, you will kick youself on how easy it truly is to root and flash. GSAM will show you in more detail what is using your battery the most, good luck with whatever you choose to do. There are many people here who can help you along the way, thats what this site is for.

Juice Defender will help a ton with you're screen being off for extended periods of time. Normally without it, I lose 30% at work without touching it. Today, I have lost 6%. The margin won't always be like that but it's a sizeable difference. Also, I have an app monitor application you can use to track rogue apps. There is also this app called Autostarts where you can disable an app from opening and it's really useful for apps that you don't need running in the background. Turning off auto sync will help as well IF you are okay with not getting every email in 5 minutes.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Juice defender

How many people here use juice defender and what do u think of it? I recently purchased juice defender ultimate and want to know if it is really worth it or not.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

From my own opinion, don't use any app that said for saving battery, I feel useless.
Warmest Greeting From Batam - Indonesia

It's useless tbh

Battery can save only by low brightness, less active connections and less ram consuming apps...
Battery savor apps do it automatically... don't waste your money on this kind of apps... do it manually; like me...

I see thanks for the input
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

Any app that claims to save battery only uses more battery by doing processes you can do yourself, so all you are doing is wasting battery instead of saving it...
~°~°~°~°~°~°~°~°~°~°~°~°~°~°~°~
Phone: Samsung Galaxy s2 T989 Hercules
Rom: Jedi Jelly 4
Kernel: Insecure Kernel
Radio: LB7 Blaze
~°~°~°~°~°~°~°~°~°~°~°~°~°~°~°~
I am going to try and make an app, if anyone wants help this beautiful talented celebrity in making it just message me!

ArianaGrande said:
Any app that claims to save battery only uses more battery by doing processes you can do yourself, so all you are doing is wasting battery instead of saving it...
~°~°~°~°~°~°~°~°~°~°~°~°~°~°~°~
Phone: Samsung Galaxy s2 T989 Hercules
Rom: Jedi Jelly 4
Kernel: Insecure Kernel
Radio: LB7 Blaze
~°~°~°~°~°~°~°~°~°~°~°~°~°~°~°~
I am going to try and make an app, if anyone wants help this beautiful talented celebrity in making it just message me!
Click to expand...
Click to collapse
well actually it does save battery but it depends on how well you know your device
if you know you can manage it yourself then ok you dont need it but it also helps by turning off data when the screen is off
but really for most people its not worth it and i would highly not recommend it

I used it on another (older) phone and it helped noticeably and I bought the plus version.
On this phone, I'm not so sure. Newer phones seem pretty efficient in the way they turn on/off radios. Currently, I can see JD offering a little benifit if you use it to schedule your syncing times at longer intervals (and you get a lot of email/notifications), and using the night time feature to shut down sync altogether during the night.
On this phone, I've actually had much better results using some customized init.d scripts put together by someone in my other phone's forum. I'm still testing them out, so perhaps I'll have him post it here once I know for sure there aren't any issues.
on this phone, those scripts made much more of a difference than JD did. here's some screen shots of the last two charges. The scripts seems to help most with saving battery when the screen is off. I'm a light user also, and hardly used my phone yesterday.

What are your settings?
Sent from my SAMSUNG-SGH-I717 using xda premium

I'm on Darkside Evo rom (ICS 4.04) and the jedi ics kernal basted on 3.0.8
I turned JD off last night before I went to bed and when I got up for work this morning, my battery had dropped from 68% to 48%. With JD on, I usually only get about 9-10% drop. So I'm keeping JD.
======
*edit* I had tried that cpu sleeper app (old version I believe), and I think it messed up some things I had going before I installed it, since my batter life dropped off a lot. So I'm going to reflash the rom today and set everything up again without it. I see there is a newer version in the market, so perhaps I'll try that one later.
======
For JD, I use the customize profile, and have the mobile data option enabled (turns off when screen is off),
I have the wifi option disabled (since I have it off most of the time anyway). And you can't use wifi calling if it's enabled because it turns wifi off when the screen is off.
sync is at every 30 mins
Night mode from 12am to 6am
I don't use app control, since I didn't want data enabled when I wasn't using my phone
Also, go to the google play store app, and disable automatic updating. I only have it set to update over wifi only. And be sure to disable notifications in any social networking app like facebook.
and use dark wallpapers, since the screen sucks the most juice. Mine are nearly black.
with the jedi kernal, you can use antutu cpu master to underclock and undervolt the phone. I just enabled some minor UV and UC, so we'll see how it does.

I paid for JD a long time ago....before I ever knew about programs like gsam. And when I saw it woke my phone over 200 times in a work day on aggressive mode....I uninstalled it and will never use it again.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

Alot of people talk alot of smack about Juice Defender. I decided to go awhile without it and noticed a considerable difference over a week period. I'll never go without it again. It's reliable easy to use and I've got the free version so it's even better. I know it's not for everyone for whatever reason but I work in a building 10+ hours a day and the fact that it turns my data off for me as needed is great..
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

Can any one confirm that this app keeps the phone awake too often than help it going into deep sleep

sanford_brag said:
Can any one confirm that this app keeps the phone awake too often than help it going into deep sleep
Click to expand...
Click to collapse
i can confirm. i am a credible source, check my thanks meter :good:
jcnbama said:
Alot of people talk alot of smack about Juice Defender. I decided to go awhile without it and noticed a considerable difference over a week period. I'll never go without it again. It's reliable easy to use and I've got the free version so it's even better. I know it's not for everyone for whatever reason but I work in a building 10+ hours a day and the fact that it turns my data off for me as needed is great..
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
your experience differs from many, pretty much everyone else lol. but whatever works for u. but I'm almost sure that with proper configuration even with the data left on all day u'd get more juice. that being said I'm not u and I don't use your phone so I agree to disagree

well i never trust third party anti viruses and battery savers - for a belief that they are all gimmicks has somehow been implanted into my mind during the early stages of my xda induction. But following the hype all around regarding jb i have had tried it once but didn't notice any difference - neither did it make things worse nor did it make em better - so i gave it up and now believe that a power user has many stuff at his discretion that he could configure to his liking to make extraction of juice from his pack more or less suitable with respect to his usage patterns
just my 2 cents
why fix it if it ain't broken ?

Juice defender is for noobs who don't know how to turn off sync, GPS, data or wifi.
Sent from my SGH-T989 using xda premium

mike-y said:
I'm on Darkside Evo rom (ICS 4.04) and the jedi ics kernal basted on 3.0.8
I turned JD off last night before I went to bed and when I got up for work this morning, my battery had dropped from 68% to 48%. With JD on, I usually only get about 9-10% drop. So I'm keeping JD.
======
*edit* I had tried that cpu sleeper app (old version I believe), and I think it messed up some things I had going before I installed it, since my batter life dropped off a lot. So I'm going to reflash the rom today and set everything up again without it. I see there is a newer version in the market, so perhaps I'll try that one later.
======
For JD, I use the customize profile, and have the mobile data option enabled (turns off when screen is off),
I have the wifi option disabled (since I have it off most of the time anyway). And you can't use wifi calling if it's enabled because it turns wifi off when the screen is off.
sync is at every 30 mins
Night mode from 12am to 6am
I don't use app control, since I didn't want data enabled when I wasn't using my phone
Also, go to the google play store app, and disable automatic updating. I only have it set to update over wifi only. And be sure to disable notifications in any social networking app like facebook.
and use dark wallpapers, since the screen sucks the most juice. Mine are nearly black.
with the jedi kernal, you can use antutu cpu master to underclock and undervolt the phone. I just enabled some minor UV and UC, so we'll see how it does.
Click to expand...
Click to collapse
sanford_brag said:
Can any one confirm that this app keeps the phone awake too often than help it going into deep sleep
Click to expand...
Click to collapse
CPU spy and better battery stats will demonstrate that this app does not cause wake locks or cause you're phone to wake to often. All juice defender is is essentially a toggle for data. And I'm apparently not the only one with a positive experience with this app. I put forth an effort to not use it because I trust most the guys in these forums especially ASD's this was just one area where personal experience out weighed others. It's a free app. Heck, test it yourself. Lol. That's the real best answer for anyone.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
---------- Post added at 10:47 PM ---------- Previous post was at 10:43 PM ----------
jordanishere said:
Juice defender is for noobs who don't know how to turn off sync, GPS, data or wifi.
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
Anyone can turn off simple toggles. The handiest thing about JD is that it's automatic and easy to set up. I don't have to turn on and off all these various things all day. Set it and forget it.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

yeah, it would drive me crazy turning toggles on and off every single time I touched my phone to look at something. JD automates things and limits how often your phone syncs if you set it up properly.
right now I'm sitting at 18 hours up time with 72% battery left. 37 minutes of voice calls and 14 minutes with the screen on. I don't use my phone much at work because I'm in front of a computer all day, so I typically get better battery life than most people who are out-and-about all day.
I just got this phone 2 weeks ago, and I was getting about 18-24 hours total for each charge.. Now that I've got some things figured out, using my init.d scripts and JD, I'm getting about 48 hrs on a single charge.
after this charge, I'll disable JD and see how the phone does. typically at night, my phone loses less than 1% per hour. so maybe 7%-8% battery loss over 10 hours or so. before JD, it was like 15-20% loss over the same amount of time. I figure that's a pretty good test since the phone isn't being touched at all. But I'll test again, just to be sure it wasn't anything else I installed (since I had been trying different roms and apps a lot).
I haven't installed anything new since the weekend, so the phone should be pretty well settled in by now. Next charge, I'll disable JD and report back.

mike-y said:
yeah, it would drive me crazy turning toggles on and off every single time I touched my phone to look at something. JD automates things and limits how often your phone syncs if you set it up properly.
right now I'm sitting at 18 hours up time with 72% battery left. 37 minutes of voice calls and 14 minutes with the screen on. I don't use my phone much at work because I'm in front of a computer all day, so I typically get better battery life than most people who are out-and-about all day.
I just got this phone 2 weeks ago, and I was getting about 18-24 hours total for each charge.. Now that I've got some things figured out, using my init.d scripts and JD, I'm getting about 48 hrs on a single charge.
after this charge, I'll disable JD and see how the phone does. typically at night, my phone loses less than 1% per hour. so maybe 7%-8% battery loss over 10 hours or so. before JD, it was like 15-20% loss over the same amount of time. I figure that's a pretty good test since the phone isn't being touched at all. But I'll test again, just to be sure it wasn't anything else I installed (since I had been trying different roms and apps a lot).
I haven't installed anything new since the weekend, so the phone should be pretty well settled in by now. Next charge, I'll disable JD and report back.
Click to expand...
Click to collapse
Here's the thing. I consider myself to be a power user. Maybe I just don't know what some of these other options are. If there's a better way to do it I'm open to more education. I like to learn new things. So let's here it. What else can I use to turn off my mobile data when I turn my screen off to save battery. Something automated and easy to use.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

I can tell u straight up if you're using JD to disable the internal radios and only turn them on once every 30 minutes or so you won't get as much without it to have 48 hours total time off one charge, u must be doing that, or having it switch to airplane mode inbetween certain hours. nI would also think u probably have location awareness on, and switch to WiFi at work.