yashsingh1/xdaforums huggingface dataset:
[Galaxy S II General] eranyanay:
Well, After moving from T27 to T39 and now ninph2.1.3, I think I wish to go back to T27

perhaps its because of the first cycle (?), but Im with 22% after 18hours 30minutes, where I had wifi on for 5:20, Awake for 4:02, screen for 2:23, phone for 1:03 and BT for 0:28 minutes.

Im not sure if Im satisfied, as I see in older posts much better results. I never had anything bad about SpeedMod, its just that I had suddendly lost 10% in a manner of seconds, or after reboot suddendly lose a few percents..dunno how it happend though, I did used the batteryCalibration right.

Should I give it a try for another cycle or two, or there's much better results right now for smooth & battery friendly kernel?

Oh, yes, and I use auto brightness...I walk alot indoor & outdoor so I need it
[Galaxy S II General] bala_gamer:
Hi guys, how about this battery life???

This is pretty awesome, i never thought i will get 3 days of backup, but i just got the right combination.

ill be having around 10 to 15 calls per day,little bit browsing, updating the tweets, reading a bit.

dlev2 rom 1.2 + niphetamine 2.1.3 + "disable fast dormancy"
[Galaxy S II General] m444266:
Indeed, that is nice. I still see a bit of time awake when your screen is off, and with a 3day span, that could be hours of wake time.. perhaps you were on a call using a headset and the screen is off, if so then you have nothing more to worry about.
[Galaxy S II General] bala_gamer:
ya, i was on some long calls on those times.. getting almost 3.5 days of backup is great considering the screen size and some bugs in android os itself.

can people have the same rom + kernel combination like me report their battery life?
[Galaxy S II General] eranyanay:
This is mine using ninph2.1.3 and cognition 1.51, I guess it could be much better but please judge and tell me yourself

I have one long wakelock for 30mins caused by ebay app... and a big count for the alarm manager

Its my first cycle. Should I be worried and go to T40?
[Galaxy S II General] m444266:
Do steps 6 to 8.. and/or attach the alarm dump here.

http://xdaforums.com/showpost.php?p=17643030&postcount=543
[Galaxy S II General] eranyanay:
thank you for the information,

I did it but couldnt understand what I read.

I added the file.

Also, I have ActivityManager-Launch, 4mins and 1179counts. GTalk_Conn 2743counts and 3mins,*backup* for 2mins and 2246counts, RIJL(dialer) for 2mins and 5200counts and a few others.

does it mean anything?

after how many cycles does the battery consumption gets stable, so I can decide wether i wish to change kernel or not?
[Galaxy S II General] m444266:
ccc71.bmw.pro (remove battery monitor widget)

11398ms running, 364 wakeups

com.whatsapp (configure this properly if you removing is not an option)

49268ms running, 13 wakeups

com.facebook.katana (configure or remove)

3440ms running, 44 wakeups

vStudio.Android.GPhotoPaid (check in to this if you still have drain after fixing above)

42ms running, 2 wakeups

com.google.android.location (remove or live with it if drain persists)

9120ms running, 19 wakeups

com.google.android.apps.maps (remove or live with it if drain persists)

2229ms running, 80 wakeups

for battery, 2 cycles would be okay.
[Galaxy S II General] kartalgurhan:
what is "dlev2 rom 1.2 ROM" ? could you provide us the link to it?

thank you
[Galaxy S II General] - Fabio -:
Hi all,

I'm following this thread with attention cause I think i'ts really a great place to have information about battery life.

I did a dump of my alarms on my GSII to fix wakelocks problems, the results are joined to my message.

It also comes with some screen captures of battery usage and better battery stats datas.

I think that I have some wakelocks issues cause the ratio "Screen On / Awake" is really far from 1.

Could you please help me to take the good decisions to fix those weird wakelocks issues?

Thank You in advance and thank you to m444266 for the very good initiative of this thread, much appreciated.

Fabio
[Galaxy S II General] - Fabio -:
Here you go kartalgurhan!
[Galaxy S II General] kartalgurhan:
wow!

merci beaucoup for the quick reply ..
[Galaxy S II General] m444266:
hmm i think you're pretty much in good shape.. altho the "ideal" is to have equal screen on time and awake time, I think you have no problem to worry about.. I dont see any rogue apps that you have, remaining apps that cause wakeups are acceptable i think and we can really do nothing much about them if we use them like email/gmail. even for me, my awake time is double screen on, but that is because I use email, alarm clocks, and used facebook for a few moments but note that the coverage is 1d 14h and still have 10%(i'm charging now but it can still last more than 1 day of screen off).. but a ratio of 2:1 or even 3:1 is great specially with that span of 1day still have a lot of juice left. the point is, you should only shed 1 % for 5+ hours of screen off time, which you do. when i had wakeup problems, my battery would drop 5% in 1 hour of screen off and the ratio was like 100+:1 awake:screen on..
[Galaxy S II General] bala_gamer:
http://xdaforums.com/showthread.php?t=1237495

Here is the link
[Galaxy S II General] - Fabio -:
Thank you very much for your quick answer and personnalized analysis m444266.:)

I agree that 2 days of battery life is quite good with that kind of powerful phone :D !
[Galaxy S II General] iovaniorgovan:
Hi all. I'm for sure determined to get as much independence from the SGS2 as m444266.

I put to use his findings and installed Lite'ning rom v6.0 xxKH1 with SpeedMod s2 k1 T27.

I passed over the drawbacks of the 6.0 litening rom, like screen shot not working, only few languages for Swipe, more blue in the Theme than I can stand, no camera click sounds, because all these have fixes.

I left the phone in standby (with WiFi and gmail sync) over night after a full charge and look at the attached screenshots to see what I found.

In almost 8 hours it used 7%, Android OS is the main battery drainer. With the stock ROM and kernel I think it consumed about 5% in the same situation. What exactly sits behind the Android OS label?

After 20hours of use, with Wifi or 2G data always on, with the display used for almost 48min, the battery consumption looks good being well over half (about 63%).

Over all this combination is promising. Thanks m444266, will keep on reading.
[Galaxy S II General] m444266:
hehey! not bad! 20 hours with a lot of wifi ON, not bad at all..in fact, with 60% still left, that is great! i see some awake times when screen is off but I guess those are some of the system apps syncing since wifi is on.. if you opt take and alarm dump most probably its gsf, andor email, andor location/maps.. but then again i think you have nothing much to worry about..
[Galaxy S II General] Dark Emotion:
I can't find download link for SpeedMod s2 k1 T27. Can somebody upload it?
[Galaxy S II General] Leppin:
http://xdaforums.com/showpost.php?p=15923387&postcount=2

the 1st attached file
[Galaxy S II General] Dark Emotion:
That is for devs... How do I install that?
[Galaxy S II General] Leppin:
oups, sry hadn't read the for dev extension :rolleyes:

but found the kernel on my pc
[Galaxy S II General] Vaim:
Hey, i was wondering about idle battery drain.

Can people here comment on their idle battery drain? As in when sleeping and the phone is in one place and doesn't need to connect to different cell towers etc.

What i'm getting is slightly under 1% per hour, which i don't think is very good at all.

I have wifi off and no automatic sync going on.

When i switched the phone mode to 2G only, the drain is close to 50% lower.

Unfortunately there is no way to automatically (I wanted to try and make Tasker switch it to 2G when screen is off, but no luck) trigger 2G <-> 3G modes or even use a widget for a one-click-wonder solution.

Any input appreciated, thanks.

I'm running Litening 6.1 with Speedmod 39 or Siyah 1.6 for testing, currently.
[Galaxy S II General] poch_1421:
i'm using Siyah 1.6 too, and looks like it can give some added batt life. this should be included in the tests
[Galaxy S II General] m444266:
ooh..1%/hr screen off.. indeed, theres something waking ur phone.. could u try getting an alarm dump?
[Galaxy S II General] brack11:
I also have slightly lees than 1% per hour and on plain gsm I have 1% power 1.5 hour. With flight option on, I have 5-7% per night. I thought it is ok until I saw this message. How to get hold of alarm dump?

Sent from my GT-I9100
[Galaxy S II General] Vaim:
I'm not sure how to do an alarmdump, but my AlarmManager in betterBattery says ~200+ count for slightly over 1 hour.

But the duration is only 5 seconds total.
[Galaxy S II General] nikzDHD:
Search this thread for sysdump, thats very minimal not too much to be concerned about but if you are sysdump will show you.
[Galaxy S II General] StevenBX:
I think that's pretty good. I get about 2% per hour. At 1% per hour you could keep it on for over 4 days straight - I'd say that's very good. I'm pretty happy with my 2% per hour - enough for me to get 3 days with light usage (turning on aeroplane mode at night) or 1 to 2 solid days of heavier usage.
[Galaxy S II General] Vaim:
Well, i was kind-of comparing it to my previous iphone 2g.

I didn't exactly measure the drain per hour, but after the initial craze of using it literally the whole day, it could survive 4-5 days without too much effort.

Being completely idle and only 4 days without touching it once feels kinda weak.
[Galaxy S II General] m444266:
http://xdaforums.com/showpost.php?p=17643030&postcount=543

---------- Post added at 07:57 AM ---------- Previous post was at 07:54 AM ----------

indeed.. 4 days without touching it is weak.. it should last roughly 16 days or more without touching it.. provided it has no major deep sleep issues.
[Galaxy S II General] Vaim:
Alright, i froze my battery monitor app for tonight to see if anything improved. It did not.

Unfortunately i didn't reset cpuspy stats at the very moment i took it off charging.

So this is one night's worth of data.

I have no idea what the wakes in the middle of the night there are. I did wake up once and checked the time, so i assume that's probably the second screen wake.

But all that other stuff - i have no idea.

imgur.com/a/7h9hO (can't post links, since i don't have enough posts)

I also did an alarms dump, but that was about 35 minutes later than these screens.
[Galaxy S II General] m444266:
it's bmw based on the dump.. it wok up the phone 33seconde before the dump (i think), meaning it was running, logging history, and/or being used as a widget. i guess its best to just totally remove it for now..

but to be sure, go to cwm, clear cache.. so that the dump starts from scratch and will not include past recorded data.. wait then take dump again..

RTC_WAKEUP #0: Alarm{409fd6d8 type 0 ccc71.bmw}

type=0 when=+33s471ms repeatInterval=60000 count=1

ccc71.bmw

54843ms running, 1397 wakeups

891 alarms: flg=0x4

506 alarms: flg=0x4 cmp=ccc71.bmw/.lib.bmw_scheduler
[Galaxy S II General] StevenBX:
Really? My phone has been awake 1h49m17s, compared to Screen On 50m5s and Phone On 29m14s of that, and I have the following wakelocks over 1 minute:

*network-location* (com.google.android.googlequicksearchbox): 9m38s

FacebookService (com.facebook.katana.Facebook): 7m5s

NetworkLocationActiveCollector (com.google.android.apps.maps.Maps): 3m4s

GTALK_ASYNC_CONN (Google Services): 2m36d

DhcpHandler (Android System): 1m59s

*sync* (com.google.android.gm.Gmail): 1m47s

Alarm Manager (Android System): 1m37s

*sync* (com.twitter.android.Twitter): 1m36s

ActivityManager-Launch (Android System): 1m31s

SyncService (com.evernote.Evernote): 1m18s

Is any of this of particular concern? I currently have 1d8h35m23s on battery having had it on aeroplane mode for 2 nights and running normally yesterday and today (it's about midday today now) and have 57% battery remaining.
[Galaxy S II General] m444266:
yeah, really but I mean really without touching it. =D .. urs is reasonably okay, ~2:1 awake vs screen on, 1hr screen on(actual usage), already 1 day uptime and still have more than half juice.. dont see any major problem there. d_(^^,
[Galaxy S II General] Vaim:
Got some pretty good results now.

I removed battery monitor widget and also set up setcpu with lower voltages and a profile of 200-500mhz "conservative" when screen off.

Battery life for the first night was a lot better now, but i'd like to figure out what one large wakelock was all about.
[Galaxy S II General] Vaim:
Alright, this is the strangest thing i've experience on my SGS2 as of yet.

I set my network to gsm only and turned off network data, when i'm not in need of it.

This, combined with slight undervolting (825 on 200mhz), 200-500mhz conservative when screen off and SiyahKernel 1.6, have left me completely shocked.

I was expecting something like 1% drain every 2 hours at best. This was in fact not the case.
[Galaxy S II General] kartalgurhan:
care to share your ROM, settings..etc?

thank you.
[Galaxy S II General] ramagarhwal:
Thanks alot for this mate
[Galaxy S II General] freaked:
Hi all.

After reading this topic, i'm guessing it's changing subject.

I mean, is it confirmed that speedmod t26 is the best kernel for good battery time ???
[Galaxy S II General] abhi021:
How about adding the Speedmod T27 to the list before shifting to V6.1?
[Galaxy S II General] TimmehPS3:
Agreed. Please do.
[Galaxy S II General] freaked:
Hi there.

what happened to Jeffrey_SpeedFrey2.2.0 download links ? seems to be investigated ?
[Galaxy S II General] bonillax:
Thank very much, you are totally right, everybody say different things but we need some test like you do great job!

I am actually ln6.1 BUT y flash the stock kernel XKH3 to avoid yellow triangle and have more battery, because y se nin 2.0.5 was bad for me.

I will wait your result with nin 2.1. and the we will see.

By the way, do you recommend, change stock kernel from jefrey kernel in 6.1 ?

thanks!
[Galaxy S II General] YaviSGS:
I'm on Jeffrey_SpeedFrey2.2.0 and testing...
[Galaxy S II General] goofy584:
download links

hello,

does someone have the links to the jeffrey_... kernels? they are removed in the thread.

thanks

thomas

:mad:
[Galaxy S II General] bons:
You can find them here: http://www.android-hilfe.de/root-ha...amazing-battery-life-more-update-21-08-a.html
[Galaxy S II General] LockeOn:
Can You benchmark RAGEmod v1-T26 which is basicly same as SpeedMod but it allows UV which could lead to better battery performance. That way we could have a better comparison between those kernels and Jeffrey_SpeedFrey - which UV as default. OC/UV is implemented same way as in Ninephetamine so UV values are the same for both kernels.
[Galaxy S II General] bunseN2k:
Thanks for the comparision :)

It really helps to decide which kernel i have to use :)
[Galaxy S II General] m444266:
flashing the stock kernel's only purpose is to remove the yellow triangle. you can opt not to do this since your previous kernel will not affect you current one.

Haven't tested on lr 6.1 yet but will get to that... sooner or later
[Galaxy S II General] m444266:
I'll include this in the list.. but I'll stick to 1.2Ghz.. with assumptions that uv will increase the lifetime and ov will decrease it.
[Galaxy S II General] celiocalves:
So, anyone have more results about Ninphetamine 2.1.1?

If Ninphetamine 2.1.1 drains the battery more fast than Speedmod t26 i will change certainly :)
[Galaxy S II General] m444266:
apologies for the delay.. had to retest ninph2.1.1.I was already down by 30% but then I noticed the WiFi was not ON so I had to charge back up again. but battery life seems to be promising for 2.1.1 vompared to 2.0,5 ..then again I'd better wait for the results.
[Galaxy S II General] kungvn:
wait wait wait :D:D:D
[Galaxy S II General] m444266:
already at 50%.. looking good for ninphetamine 2.1.1 and its definitely longer than 2.0.5. for how long? stay tuned.. already have an idea tho.. :D

Anywhooo. can some one give me or point me to where I can download JUST the modem KG6 and KH1 flashable via CWM.. Thanks in advance!
[Galaxy S II General] goofy584:
thanks :) I hit the button :D
[Galaxy S II General] kungvn:
Here you are: :D:D

modern kg6 :http://www.mediafire.com/?o994stadi26gksn

modern kh1 :http://www.mediafire.com/?e9g67qbdd6z6er6
[Galaxy S II General] 1xinfusion:
I appreciate your efforts to test kernel battery use but would a test that more accurately reflected real world usage be more useful (im guessing at least 50% sleep and 50% awake, will be hard to control though)

I also feel bad for your amoled screen. the blue color degrades 2x faster than the green color. The amount of time you are keeping the screen on will cause it to display the yellow tinge + burn in your icons on your display way faster than usual!!
[Galaxy S II General] m444266:
cool~ good for you! actually even without the undervolting you'd probably still get that result because your phone had a pretty deep sleep.. :D which is exactly what we want, and what we will get if nothing (much) wakes our phone up every now and then.. awesome! your free to enjoy your phone and you will no longer worry about battery once you lock your screen off..
[Galaxy S II General] - Fabio -:
+1. ROM, Kernel and Modem, please :D
[Galaxy S II General] Vaim:
Litening 6.1

SiyahKernel 1.6

Baseband I9100XXKH3

SetCPU 200-500mhz when screen off

500mhz 875mV

200mhz 825mV

Fast Dormancy off

Packet data off, Network mode GSM only (don't honestly need internet access or 3g calls when in sleep mode)

Auto-sync off

The time from 100% -> 99% took somewhere around 12h, so it looks like it's possible to carry it around for weeks, if need be, provided you don't use it for much else than calls.

Well, this is after 2 days and i tried to drain at least some of the battery by doing things i didn't really need to.

Gonna make a ROM backup of this conf for sure.
[Galaxy S II General] m444266:
Ooohh.. kernel with smartass.. will try this one..

side note.. after days of use, I've been encountering apps(games usually) freezing that require me to do a reboot of my phone. although it is not so much that irritates a user but it is quite frequent. perhaps it's the kernel since i did not UV at all. currently using ragemod v1 T27.. will probably try this Siyah kernel since I've been looking for other governors besides ondemand. as I read it, it supports UV and BLN as well.
[Galaxy S II General] Lenunited:
Without a doubt

New KI3 With chainfire root kernel is the best battery i have experienced.

0% drain over 8 hours when sleeping.
[Galaxy S II General] desmes:
Would you share some info about Display and Voice Calls times , please ?

Thank you !
[Galaxy S II General] m444266:
normal.. but ooh, didnt know there was a KI3.. new version ROMs and/or kenels should be coming up then..
[Galaxy S II General] brack11:
Leomar's rom is already there.

Sent from my GT-I9100
[Galaxy S II General] Lenunited:
Currently using Revolution 2.7 (KI3) with SiyahKernel 1.7
[Galaxy S II General] Vaim:
Okay, after some more use, this is what i have.

This has 43min of calls and 52mins of display on time.

The "time on battery" is actually ~18h more, but because i flashed back to 1.6 kernel from 1.7, i had to reboot and the new measurements started at 90% or so.

I've turned on wifi when i've needed it (somewhere around 20mins total maybe) and 3g (also around 20 mins probably).

Can't really complain right now.

Perhaps i should try the new modem that comes with 2.3.5, having heard so many good words about that rom/modem/kernel combination.
[Galaxy S II General] N78006:
m444266 PLZ test SiyahKernel v1.7.7

I heard it is good
[Galaxy S II General] Jonjungle:
+1

I'm using it and getting very good performance / battery life, was on Speedmod's T39 before.
[Galaxy S II General] Lenunited:
What UC/UV Settings do most people prefer to use.

Stability crashes when i use the GPU test on every setting i select.
[Galaxy S II General] desmes:
There seem to be different individual settings, that have proved to work, depending on configuration

These are stable for me , though I haven't bothered to run tests ...

1400 MHz - 1250 mV | 1000 MHz - 1050 mV | 500 MHz - 850 mV

1200 MHz - 1150 mV | 800 MHz - 950 mV | 200 MHz - 800 mV

You can try these too :
[Galaxy S II General] m444266:
will test siyah 1.7.8 tom. i was on 1.7.4 but had quite numerous freezes and restarts..
[Galaxy S II General] jonny68:
My set up....

ROM: CheckRom V5

Kernel: Siyah v1.8b1

This is the best battery life ive ever had, fantastic,you can see the screen on time i didn't just leave the phone on standby all the time i used it quite a bit for Internet, music, calls, texts, downloading apps,etc,etc, the Siyah Kernel coupled with this fantastic ROM has made all the difference,previously i got 37 hours on Cognition but that is with only 1hr 33 mins display.
[Galaxy S II General] Jonjungle:
Did you leave stock Voltage settings on the Siyah Kernel? If not, care to share your setup please? [Voltages / Profiles]

Thanks! ;)

P.S. I'm on Cognition 1.5.1 with SpeedMod T41 and KI3 Baseband at the moment and the best I got is the same as you but with the governor set on "conservative" +wifi always on.
[Galaxy S II General] Lenunited:
Cyanogen seems to be very good.

With stock kernal UV/UC
[Galaxy S II General] akira888:
Is my battery life normal?

The phone is undervolted with ondemand governor. Using RageMod kernel. No OC

It seems AOS is quite high :(
[Galaxy S II General] Galactus:
Not too bad, your phone does seem to be awake quite abit when the screen is off.
[Galaxy S II General] m444266:
Siyah 1.7.8

5h 21m.. didn't have time to do 2nd round. sorry
[Galaxy S II General] wrstylo:
I have a new sick record off 9 hours + screen time, will post some pics when I can.
[Galaxy S II General] Pfeffernuss:
Yes, great, but so what? :confused: Have also had 9 hours and 41 minutes once. Without actually using the phone ofcourse. All these things really literally say nothing.

Yesterday, while uploading lots of stuff and using the phone at the same time the battery went from 100% to 0% in just over 4 and a half hours. Same Rom, same kernel, "somewhat" different usage.
[Galaxy S II General] pankajkundalia:
I have been using the phone for nearly 4 months now I,got no problems with this beauty!

If I dont use the phone much I get 30+ hours n if I play games listen music surf internet it works for over 16 hours easily!(wifi)

Senario changes with 3g here I get only 7-8 hours.

n m still on android 2.3.3 the official version i never got amy update after that here in India
[Galaxy S II General] JPHCCFC:
I am using the kernel that comes with the checkrom. I have also tried multiple kernels on multiple roms. However I always seem to have high battery drain when I leave wifi on. I see most people have great battery life when using wifi instead of network data. Are there any tips to setting up my router to stop battery drain on the cell phone? I'm on a dlink g & n router and my connection strength is pretty good about 3 bars.
[Galaxy S II General] pankajkundalia:
No idea for kernels n all my phone is as I got from samsung konly once updated via kies never rooted neither flashed it it works like a charm I was thinking of flashing but when I read ppl getting only 9-10 hours so I left the taught of doing that but ya this rom gives me good performance but all battery is mostly eaten by android os n display!
[Galaxy S II General] m444266:
Thanks for the input. but

real world usage tend to vary from person to person and how they configured their devices to be. Also with 50% sleep, SGS III might catch up to me and these results would be relatively useless.. :) with that, Im not after real world usage timespan. Im after the difference of battlife in percentage given all other things as constant as possible except for the thing I'm trying to compare.

I feel bad for my screen too. I could opt to use green only or red only or even just plain black..but time is of the essence. how long would you say is the lifespan of the blue LED, include the other colors as well? If I create a background with 50% less blue would that make LED degradation balanced? now that you mention it, LR rom uses a lot of blue.. better get me some green theme instead or I might see yellow sooner.