Develop Bugs

Battery life is horrible

On juggernaut ROM and I don't know why but my battery drains faster than my vibrant with ics I have no widgets or installed any apps
Sent from my SGH-T989 using xda premium

post some screens of battery use.
mines pretty good. apart from the basics try disabling wifi/4g when your not actually using the internet.
Hercules was here

I tried JuiceDefender on the market (Free one) and I seem to be getting better bettery life.

airhop7 said:
On juggernaut ROM and I don't know why but my battery drains faster than my vibrant with ics I have no widgets or installed any apps
Sent from my SGH-T989 using xda premium
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Stock kernel on juggernaut overclocks. this offers better performance, but drains the battery faster.
How long have you been using the juggernaut Rom?
Sent from my SGH-T989 using XDA App

Give eugenes rom a go, it has a custom kernel. Ill post some screenies of my battery life as soon as I hop on a computer
Sent from my SGH-T989 using Tapatalk

airhop7 said:
On juggernaut ROM and I don't know why but my battery drains faster than my vibrant with ics I have no widgets or installed any apps
Sent from my SGH-T989 using xda premium
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Click to collapse
WHOA it's rare to see someone say that the battery life is horrible in this forum. You should try a new fresh wipe and install, and try different kernels.

Try darksides super wipe then re install juggernaut ROM. Make sure not to run setcpu or any other cpu apps, I was having bad battery drain running setcpu.
Sent from my SGH-T989 using XDA Premium App

Setcpu leaves a core on so I advise against it
Sent from my SGH-T989 using xda premium

Teo032 said:
WHOA it's rare to see someone say that the battery life is horrible in this forum. You should try a new fresh wipe and install, and try different kernels.
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Click to collapse
+1
From a galaxy better than yours.

What kernel are you using?
Sent from my SGH-T989 using xda premium

vabeach454 said:
I tried JuiceDefender on the market (Free one) and I seem to be getting better bettery life.
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Click to collapse
i actually think those "battery saving" and task killer apps uses up more juice than saving ... i had juicedefender ultimate and i noticed my battery drain when it was enabled .. i deleted the app and ive noticed a great improvement on my battery .

Agree
I was also getting horrible battery life on the Juggernaut roms. I tried the bullet kernel, synergy, and faux kernels with all sorts of different ways to reduce battery consumption such as underclocking, undervolting, uninstalling bloat, and removing apps from startup. No matter what, my phone would always be dead by the time I came home from work/school (I'm usually away from home from 630am until 800pm).
I recently started using the DARKSIDE rom/kernel in the hopes that it would provide some better battery life and I am actually getting significantly longer usage times. As of right now after ~15 hours of time spent off the charger and with moderate use (~500 texts/day, XDA app, FB checking, random Internet usage), I have just under 40% battery life remaining. I must say I am very impressed with this rom and give the developer TDJ mad props.

So here's my battery life with Eugene's Macnut ROM:
Compared to this (Juggernaut 4.1 with ICS Ultimate Theme):

I run juggs with TDJ Darkside kernel, kernel makes huge diff
airhop7 said:
On juggernaut ROM and I don't know why but my battery drains faster than my vibrant with ics I have no widgets or installed any apps
Sent from my SGH-T989 using xda premium
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Click to collapse
I am running Juggs 4.1 as well previously with the FAUX123 kernel and decided to try out TDJ's Darkside kernel. Wow, huge difference, highly recommend. I use system tuner app to adjust my speeds but main thing in system tuner app is to go into boot settings and set screen-off to powersave governor and max frequence to 800, 500 etc.
I also run easy bettery saver and that helps as well. Battery life is best I have ever had with my G2 and I got it first day it came out and have run most all of the rom's kernels on it. If you can I would suggest running TDJ's Darkside rom as well. I would but just don't want to reload again at this point.
DK

I'll try darkside rom and see if it fixes my battery drain problem.

cashyftw said:
Setcpu leaves a core on so I advise against it
Sent from my SGH-T989 using xda premium
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Thank you for this, I wasnt aware of that, what do you use to change your clockspeed when your screen is off? I recently switch from an iphone and unfortunately battery life seems to be something I have to actually think about now. I know its a faster processor and a bigger screen so I get it, I just never had to worry about turning off wifi and things like that before. I currently am running beastmod 4.2 with darkside kernel. I have 9hrs on battery at 41% with 2 hrs and 15 min of display. Im not really interested in speed at this point so I thought setcpu was a good thing to use to underclock and use less battery. Can you recommend any good alternatives or should I not bother with setcpu type apps. Thanks in advance

On darkside... Not the current one but the one before it... I think it was version 1r2 or something like that. Battery is great, better than juggernaut. I have bluetooth and Wifi on all day

schgittyfour said:
i actually think those "battery saving" and task killer apps uses up more juice than saving ... i had juicedefender ultimate and i noticed my battery drain when it was enabled .. i deleted the app and ive noticed a great improvement on my battery .
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Click to collapse
They gobble up a TINY bit more CPU (probably no more than 1% throughout the entire charge) at the cost of managing your data settings. It saves juice primarily when your phone is idling. It pings, it checks data thresholds. The main idea is that it turns off 4g/wifi when you're not using it, and back on when you are. This requires a little but of CPU, but you end up having a battery that lasts much longer.
There's never be a time when you're using your phone 100% of the time on battery. There's ALWAYS idle time.

Darkside kernel questions.

So I'm currently running Juggs 5.0 and using the Darkside kernel. First day was rocky but relished it and love how smooth it is. Now am just testing the battery life. Here are much questions... 1) I was using cpu tune for my Faux kernel and used different profiles for it. Since I have Gideons script can I still do that? 2) Do you recommend it since I have this script? 3) I want my phone to not use hardly any battery when at rest or sleep, what's the best way to do this with the info I have given? Also I am using juice defender. Thanks in advance fellas !!
Sent from my SGH-T989 using xda

suaverc118 said:
So I'm currently running Juggs 5.0 and using the Darkside kernel. First day was rocky but relished it and love how smooth it is. Now am just testing the battery life. Here are much questions... 1) I was using cpu tune for my Faux kernel and used different profiles for it. Since I have Gideons script can I still do that? 2) Do you recommend it since I have this script? 3) I want my phone to not use hardly any battery when at rest or sleep, what's the best way to do this with the info I have given? Also I am using juice defender. Thanks in advance fellas !!
Sent from my SGH-T989 using xda
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1) Yes but I wouldn't recommend it, its equivalent to having two CPU apps, they'll conflict, so pick one
2) See point one
3) Make sure your phone is deep sleeping, by using CPU spy and betterbatterystats to avoid app wake locks, which keep your phone from entering deep sleep and draining more battery.
For better performance all around (including deep sleep) i recommend undervolting with either faux clock or system tuner. Gideon script can also be modified to undervolt more if you read up on it a little.
As a side note, the general consensus among power users is that juice defender sucks. It drains more than it saves

icenight89 said:
1) Yes but I wouldn't recommend it, its equivalent to having two CPU apps, they'll conflict, so pick one
2) See point one
3) Make sure your phone is deep sleeping, by using CPU spy and betterbatterystats to avoid app wake locks, which keep your phone from entering deep sleep and draining more battery.
For better performance all around (including deep sleep) i recommend undervolting with either faux clock or system tuner. Gideon script can also be modified to undervolt more if you read up on it a little.
As a side note, the general consensus among power users is that juice defender sucks. It drains more than it saves
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1) thanks. I think I will delete this app for this particular app
2)got it
3)I downloaded them and will need to learn more about wakelocks.
Have never heard if this.
Here are my stats.
384 mhz 33%
1080 mhz 13%
Total state time 4:30.30
Deepsleep 47%
Ill try a tune to see which is best for undervolting . Thanks for your assistance
Sent from my SGH-T989 using xda

Ok partial wakelocks unplugged had juicedefender at 11 mins and 4.1%. Partial since charged JD is 29 mins 3.8% and activity manager launcher .8%.... This is what I got. So is JD really draining more than it saves? Just curious.
Sent from my SGH-T989 using xda

suaverc118 said:
Ok partial wakelocks unplugged had juicedefender at 11 mins and 4.1%. Partial since charged JD is 29 mins 3.8% and activity manager launcher .8%.... This is what I got. So is JD really draining more than it saves? Just curious.
Sent from my SGH-T989 using xda
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yup, it causes all those wake locks ur reading about. No point having an app the reportedly saves battery life but really just prevents deep sleep?? kinda useless in my opinion lol

icenight89 said:
yup, it causes all those wake locks ur reading about. No point having an app the reportedly saves battery life but really just prevents deep sleep?? kinda useless in my opinion lol
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Got it. So my kernel will kill the radio and etc that JD already does and save me battery? Because that is what JD is for right? Also I can't find faux clock on the market.
Sent from my SGH-T989 using xda

Actually I found it another way. I remember reading something at one time about undervolting and I may be wrong, but should I try at -25mv increments??
Sent from my SGH-T989 using xda

suaverc118 said:
Got it. So my kernel will kill the radio and etc that JD already does and save me battery? Because that is what JD is for right? Also I can't find faux clock on the market.
Sent from my SGH-T989 using xda
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No, a kernel won't kill the radio. Jd sucks, and it eats up more battery than it saves. Having your radios shut off makes a smartphone dumb. Run gideons script and call it a day.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

OK so here is my current stats.
Deepsleep 73%
384MHz 14%
1188MHz 8%
Battery stats say it's been unplugged for 10h 4m with 50% left.
My question is why isn't my phone using the higher 1188 and using the lower number? So does this.mean my phone is moving at a slow rate? Thanks again!
Sent from my SGH-T989 using xda

Oh on my darkside kernel using Gideon's script -50v setting and I went ahead and did my own-50v as well. Any tips??
Sent from my SGH-T989 using xda

suaverc118 said:
OK so here is my current stats.
Deepsleep 73%
384MHz 14%
1188MHz 8%
Battery stats say it's been unplugged for 10h 4m with 50% left.
My question is why isn't my phone using the higher 1188 and using the lower number? So does this.mean my phone is moving at a slow rate? Thanks again!
Sent from my SGH-T989 using xda
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Did you read what the script does? It underclocks your cpu and undervolts it

xcrazydx said:
Did you read what the script does? It underclocks your cpu and undervolts it
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Yeah I know that but I still don't know a lot about it still. I have to read here and there and processing time for me may not be as quick as some of y'all But what I thought underclocking was is it is going below the standard speed that my phone typically does like 1242. So it would run at 1080 or whatever rate I chose. So I guess I'm wondering is when does it decide to run at whatever MHz it runs at? So the numbers I showed, is that about right or good? Again thanks
Sent from my SGH-T989 using xda

suaverc118 said:
Yeah I know that but I still don't know a lot about it still. I have to read here and there and processing time for me may not be as quick as some of y'all But what I thought underclocking was is it is going below the standard speed that my phone typically does like 1242. So it would run at 1080 or whatever rate I chose. So I guess I'm wondering is when does it decide to run at whatever MHz it runs at? So the numbers I showed, is that about right or good? Again thanks
Sent from my SGH-T989 using xda
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It scales up depending on CPU load, and the governor used
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

xcrazydx said:
It scales up depending on CPU load, and the governor used
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Thanks for your patients dude. I'm assuming mine is running the way it's supposed to be. No lags that I can notice even with me undervolting a little more.
Sent from my SGH-T989 using xda

suaverc118 said:
Thanks for your patients dude. I'm assuming mine is running the way it's supposed to be. No lags that I can notice even with me undervolting a little more.
Sent from my SGH-T989 using xda
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Sounds like it's doing just fine to me! Don't be afraid to push the thanks button, lol
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

xcrazydx said:
Sounds like it's doing just fine to me! Don't be afraid to push the thanks button, lol
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Oh yeah, my bad LOL!
Sent from my SGH-T989 using xda

Battery life on Slim Bean 3.1.0

I'm still too laconic on XDA forums to post this in response to gmillz' SlimBean 3.1.0 ROM posting in Android Development, so here it is.
I'm getting the attached battery life after one day, one full power cycle on my new 1850mAh battery and fresh installation of the above referenced ROM. I'm running noop I/O and ondemand governor with the stock kernel built into SlimBean. I'm also running the screen on minimum brightness (not automatic). What else provides some useful background?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app.

you are good . i have 70% lost in 4 hours

gigimon212 said:
you are good . i have 70% lost in 4 hours
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Click to collapse
heavy heavy use I hope! lol

roperp said:
I'm still too laconic on XDA forums to post this in response to gmillz' SlimBean 3.1.0 ROM posting in Android Development, so here it is.
I'm getting the attached battery life after one day, one full power cycle on my new 1850mAh battery and fresh installation of the above referenced ROM. I'm running noop I/O and ondemand governor with the stock kernel built into SlimBean. I'm also running the screen on minimum brightness (not automatic). What else provides some useful background?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app.
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Click to collapse
Here's my battery today on slim bean...I love this ROM

Since my phone "lost" my IMEi (actually, it was just not able to read it anymore), I flashed back to Stock Samsung 4.0.4. Before, I used SB 3.0.
And I can also report that battery life is much better now. Perfect example is a night in flight mode, which results in about 1% loss vs 6% loss @ SB.
As there are several guys I talked to which have perfect battery life with this ROM and I also had till 2.8 or so, there must be some misconfiguration. Or a battery draining app.

Where did you get the download for 3.1.0? I've checked there site and they only have 3.0 for the T989.
Sent from my SAMSUNG-SGH-T989 using xda premium

WarDamnGator said:
Where did you get the download for 3.1.0? I've checked there site and they only have 3.0 for the T989.
Sent from my SAMSUNG-SGH-T989 using xda premium
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Click to collapse
It's not offcially out yet. Download onlychevys 3.1 build.
Sent from my SAMSUNG-SGH-T989 using xda premium

WarDamnGator said:
Where did you get the download for 3.1.0? I've checked there site and they only have 3.0 for the T989.
Sent from my SAMSUNG-SGH-T989 using xda premium
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=1964944

I've been running this ROM for the good half part of this day, and I must say, the battery is not as good as I hoped. Maybe I'll have to let it settle in, but CM so far beats this in terms of battery life.

I agree with the comment about stock being better than SB 3.0 and onlychevy's 3.1. It is a downer to realize most custom roms don't actually optimize for better battery life. I test the battery life by playing 5 minutes of youtube on 3g only to see how much is drained. On SB, 1% is drained for every 2 minutes of playback, and 3 minutes on stock.

Bad battery life liquid smooth 2.1 stable n7105

Hi I've got liquid smooth as above on my phone. Since installing I have bad battery life. Losing 10% In 2 hours while sleeping. I dont think I have a wake lock I've checked battery stats and it looks like its sleeping. I have run battery calibration and done 3 complete charge/discharges so I'm at a loss. I've also under clocked to 1200 MHz and using Pegasus governer. Any ideas thanks
Sent from my GT-N7105 using xda app-developers app

thedadio said:
Hi I've got liquid smooth as above on my phone. Since installing I have bad battery life. Losing 10% In 2 hours while sleeping. I dont think I have a wake lock I've checked battery stats and it looks like its sleeping. I have run battery calibration and done 3 complete charge/discharges so I'm at a loss. I've also under clocked to 1200 MHz and using Pegasus governer. Any ideas thanks
Sent from my GT-N7105 using xda app-developers app
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Click to collapse
Well honestly, I've had the same issue ona completely didn't device but same ROM. Cannot figure it out for the life of me buti think it might have something to do with signal strength...

Get rid of the liquid.try slim bean...its good...fast and battery friendly in combination with neak kernel.
If you dont want nesk...redpill is another option...just to make sure..these 2 kernel...have the best sound quality.
If i helped you...plz hit the thx button
Sent from my GT-N7100 using xda premium

[Q] About battery life, compared to GS2

I would like to know, no ROM specific, how is battery life in general, compared to GS2 i9100. Ive been thinking on getting an S2 plus but I recently read that battery life is worse than the original S2, and I would love to hear some opinions.
Thanks!
Enviado desde mi GT-I9100 mediante Tapatalk

Well the S2 is quite old, so no matter what variant you use don't expect to much from the battery. Also since our devices are old, and many using different Roms, kernels, and varying other things. Comparing battery life is going to be difficult to do. I have the Hercules variant running cm 11 (4.4.4). Battery life is typically around 8-10 hours of usage and 13+ hours of nonusage.
Sent from my SAMSUNG-SGH-T989 using XDA Premium 4 mobile app

developer209 said:
Well the S2 is quite old, so no matter what variant you use don't expect to much from the battery. Also since our devices are old, and many using different Roms, kernels, and varying other things. Comparing battery life is going to be difficult to do. I have the Hercules variant running cm 11 (4.4.4). Battery life is typically around 8-10 hours of usage and 13+ hours of nonusage.
Sent from my SAMSUNG-SGH-T989 using XDA Premium 4 mobile app
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Seems battery wise they are very similar. And peformance? Ive read that the Exynos Mali combo performs better than the Snapdragon Adreno.
Enviado desde mi GT-I9100 mediante Tapatalk

NaminatoR1254jaime.sier said:
Seems battery wise they are very similar. And peformance? Ive read that the Exynos Mali combo performs better than the Snapdragon Adreno.
Enviado desde mi GT-I9100 mediante Tapatalk
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Well if you ever want to improve performance, you can also try overclocking. ?
Sent from my SAMSUNG-SGH-T989 using XDA Premium 4 mobile app

Just installed fresh 4.1.2 stock on my S2...rooted and debloated a LOT.
First full charge I got 1 day 9 hours with 4 hours screen time.
Do note 13 of those 33 total hours was on airplane mode.
Still, nothing beats stock if setup right. Location(gps) off of course.
And only used tapatalk and browser mostly.
And the 20 hours NOT on airplane mode was on WiFi. (No sim card)

KJ said:
Just installed fresh 4.1.2 stock on my S2...rooted and debloated a LOT.
First full charge I got 1 day 9 hours with 4 hours screen time.
Do note 13 of those 33 total hours was on airplane mode.
Still, nothing beats stock if setup right. Location(gps) off of course.
And only used tapatalk and browser mostly.
And the 20 hours NOT on airplane mode was on WiFi. (No sim card)
Click to expand...
Click to collapse
Dang that is soo much more than what I get on my Hercules running CM 11!
Sent from my SAMSUNG-SGH-T989 using XDA Premium 4 mobile app

Battery life is the same no matter the android OS
Well I hate to crash the party here but I get about 24 hours battery with everything but Bluetooth turned on and location set at high accuracy. I'm running PA 4.4.4 with the Wild! kernel. It's less if I have screen on for 2 to 3 hours with music, G+ and other background apps going we're talking about 10 to 16 hours.

ArtfulDodger said:
Well I hate to crash the party here but I get about 24 hours battery with everything but Bluetooth turned on and location set at high accuracy. I'm running PA 4.4.4 with the Wild! kernel. It's less if I have screen on for 2 to 3 hours with music, G+ and other background apps going we're talking about 10 to 16 hours.
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Click to collapse
Well looks like I could trade my i9100...I sure am going to root it and put it a custom ROM after all haha
Enviado desde mi GT-I9100 mediante Tapatalk

ArtfulDodger said:
Well I hate to crash the party here but I get about 24 hours battery with everything but Bluetooth turned on and location set at high accuracy. I'm running PA 4.4.4 with the Wild! kernel. It's less if I have screen on for 2 to 3 hours with music, G+ and other background apps going we're talking about 10 to 16 hours.
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Click to collapse
Dang well I'm going to give Wild Kernel another shot!
I tried Wild Kernel V3 but it caused me to have random bootloops & restarts so I pretty much gave up on it after a few days.
What settings for the processor do you have?
Sent from my SAMSUNG-SGH-T989 using XDA Premium 4 mobile app

developer209 said:
Dang well I'm going to give Wild Kernel another shot!
I tried Wild Kernel V3 but it caused me to have random bootloops & restarts so I pretty much gave up on it after a few days.
What settings for the processor do you have?
Sent from my SAMSUNG-SGH-T989 using XDA Premium 4 mobile app
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Click to collapse
Use V3 of Wild!, most are reporting a stable experience with it. Right now I am using Interactive governor, SIO scheduler, 96 min, 1620 max. You can try Hyper gov as well.

ArtfulDodger said:
Use V3 of Wild!, most are reporting a stable experience with it. Right now I am using Interactive governor, SIO scheduler, 96 min, 1620 max. You can try Hyper gov as well.
Click to expand...
Click to collapse
What about v005 haha