Database Users

Is this good battery life?

~15hrs life with display on 3 hours. Lots of text. Mostly using wifi ..3g for 2 hours. Lots of texts and ebuddy and some facebooking
A drop of Chuck Norris's semen was placed on the IPhone. We now have the Htc Evo.

Depending on the battery size assuming you have the standard: Yes, mostly due to the WiFi.
I don't know why the CDMA cell radio eats soo much of it up.

I'm currently at 62 hours of up time (came off the charger at the same time) with about 3.25 hours of actual screen on time. Mostly on wifi just as you. Ive had 6 phone calls, many text messages, and some basic screwing around on the phone and I'm only down to 36% battery so far. Stock red battery (1500 or 1600mah, whichever it is)

deathsled said:
I'm currently at 62 hours of up time (came off the charger at the same time) with about 3.25 hours of actual screen on time. Mostly on wifi just as you. Ive had 6 phone calls, many text messages, and some basic screwing around on the phone and I'm only down to 36% battery so far. Stock red battery (1500 or 1600mah, whichever it is)
Click to expand...
Click to collapse
You mean to tell me you haven't charged your phone in over two days and you still have 36% left?

markushi said:
You mean to tell me you haven't charged your phone in over two days and you still have 36% left?
Click to expand...
Click to collapse
Yup. I kind of want to plug back in so I can transfer some stuff on and off the sd card, but I'm holding off because I want to see how far I can drag this out. Midnight tonight will be the 3 day mark.
The kernel I'm using is netarchy's 4.3-bfs-hvs-more-sbc.

Deathsled what ROM are you using?
Sent from my PC36100 using XDA App

skennedy843 said:
Deathsled what ROM are you using?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
my own, Jiminy V, but you probably won't be really interested in it unless you're on Cricket as it has all Sprint stuff yanked out. However, the Reengineered 3.70 rom (http://forum.xda-developers.com/showthread.php?t=878670) I would imagine would give you the same results as it was I used as my base rom.

I should try that out.. I always use cm6 and Zendroid bfs avs 844 245 smartass
A drop of Chuck Norris's semen was placed on the IPhone. We now have the Htc Evo.

I unplugged Sunday morning at 4:30 am. Monday at noon I was at 50%.
Now I really only used the phone to check facebook a few times, some emails, and what time the game started. Light texting and a few short calls.
The battery maintains very very well when you don't use it.
I am on latest fresh.

The sleep time on that kernel is great
deathsled said:
Yup. I kind of want to plug back in so I can transfer some stuff on and off the sd card, but I'm holding off because I want to see how far I can drag this out. Midnight tonight will be the 3 day mark.
The kernel I'm using is netarchy's 4.3-bfs-hvs-more-sbc.
Click to expand...
Click to collapse
Sent from my PC36100 using XDA App

check this out lol
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and it's not like I'm not using my phone. I've had calls today, texted with several people, reprogrammed my proxy settings to make youtube work over 3g again (and tested that out), still not heavy use but come on!

deathsled said:
check this out lol
and it's not like I'm not using my phone. I've had calls today, texted with several people, reprogrammed my proxy settings to make youtube work over 3g again (and tested that out), still not heavy use but come on!
Click to expand...
Click to collapse
Total screen on time?
SWYPED from my SUPASONIC

conqu1stador said:
Total screen on time?
SWYPED from my SUPASONIC
Click to expand...
Click to collapse
about 4 hours. a little over an hour a day. I'm not glued to my phone like some of you guys are. It stays in my pocket and I pull it out to check the time or send a text message. It gets hundreds of 10-15 second bursts each day.
I'll admit that for the sake of seeing how far I could get the battery to stretch I haven't been sitting around watching youtube and playing angry birds all day....

looks better than what i get

deathsled said:
about 4 hours. a little over an hour a day. I'm not glued to my phone like some of you guys are. It stays in my pocket and I pull it out to check the time or send a text message. It gets hundreds of 10-15 second bursts each day.
I'll admit that for the sake of seeing how far I could get the battery to stretch I haven't been sitting around watching youtube and playing angry birds all day....
Click to expand...
Click to collapse
Hah indeed, I lasted through a 3 day weekend drinking binge on one charge and it was amazing. Probably not half of that for screen on time. Its been said and I find it to be true, when not in use it does hold its own in terms of a charge.
I can't even imagine what my battery stats would be if I played games or watched videos, tbh. 24 hours with 3 or more hours of screen on time is good enough for me.
Had to ask, was only curious
SWYPED from my SUPASONIC

deathsled said:
I'm currently at 62 hours of up time (came off the charger at the same time) with about 3.25 hours of actual screen on time. Mostly on wifi just as you. Ive had 6 phone calls, many text messages, and some basic screwing around on the phone and I'm only down to 36% battery so far. Stock red battery (1500 or 1600mah, whichever it is)
Click to expand...
Click to collapse
That's impressive! Screenshot proves it.

deathsled said:
check this out lol
and it's not like I'm not using my phone. I've had calls today, texted with several people, reprogrammed my proxy settings to make youtube work over 3g again (and tested that out), still not heavy use but come on!
Click to expand...
Click to collapse
That is rediculous! I wish the new EVO's could run custom kernals. I get about 15-20 hours with moderate to heavy use, which isnt bad but if I could get 2 days that would be great.

durandetto said:
That is rediculous! I wish the new EVO's could run custom kernals. I get about 15-20 hours with moderate to heavy use, which isnt bad but if I could get 2 days that would be great.
Click to expand...
Click to collapse
Its all based on usage. I tend to get 5-10 hours of usage (depending on what I am doing) That can be over a 12, 24, 48 hour period.
From what I see, its really based on how much you use it, and what you are doing.
On a full charge of the 1500 stock battery, I get 5.25 hours of video playback watching movies on a plane.

durandetto said:
That is rediculous! I wish the new EVO's could run custom kernals. I get about 15-20 hours with moderate to heavy use, which isnt bad but if I could get 2 days that would be great.
Click to expand...
Click to collapse
New evos cant get custom kernals???
Sent from my rooted Evo 4Gusing the XDA App.

Now we all know the real test (mind u, I don't drive) is with having GPS on... b4 root having it on for a 40 min ride would eat up my battery entirely. Ouch that was painful to see.
Sent from my PC36100 using XDA App

Best rom/kernel battery life combos for hw:0003?

I am using ava z3 and caulkins modded(uv and sdfix) HTC 15 kernel.
I only get about 11-12 hours of battery life with moderate to light usage (20 mins of phone, 25 or so texts and maybe 25 minutes of total web browsing)
I see all these posts of people having battery life lasting 20+ hours...
I have setcpu drop my clock when screen is off, random advanced task killer taps, autosync off, gps off, Bluetooth off, and only use 3g all day. Anyone have any combos that I could try or possibly some tips to get my bat life higher?
Sent from my PC36100 using XDA App

MIUI + BCblend. I'm sitting at 36 hours and still have 47% on my battery.

_MetalHead_ said:
MIUI + BCblend. I'm sitting at 36 hours and still have 47% on my battery.
Click to expand...
Click to collapse
What's your display on time?

nabbed said:
What's your display on time?
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Click to collapse
No clue, MIUI doesn't give the awake vs. uptime like a sense rom does. It was with moderate use, maybe 30-40 texts, a bit of browsing, maybe 30 minutes of mini squadron and a few short phone calls.

Myn's Warm 2.2 RLS5 with netarchy-4.3.2-cfs-nosbc-havs-more has done wonders for my evo. I use SetCPU and set the govenor to smartass, have one profile for screen off (384max, 128min smartass). I can get about 7 hours of uptime(20 hours of total up time= that averages to 21 minutes of use every hour...) with 1.5 hours of that being phone calls, about 50 texts a day, checking 3 e-mail accounts (gmail's push) and reading my hundreds of RSS feeds with NewsRob.
The only other time i got similar results was with Warm 2.2 RLS4, HTC kernel #17, and some very aggressive SetCPU profiles. and similar usage.

_MetalHead_ said:
No clue, MIUI doesn't give the awake vs. uptime like a sense rom does. It was with moderate use, maybe 30-40 texts, a bit of browsing, maybe 30 minutes of mini squadron and a few short phone calls.
Click to expand...
Click to collapse
well if you look at the power usage you can click display and it'll show how long your display was on.
what brightness do you set yours at and do you use a stock battery

i have a 003 evo and i find myns rls4 & netarchy 4.2.2 less havs/no sbc the best in battery life & speed.

where do u check this 003 thing? and i have miui 1/21 zendroid kernel about 15 hours so far at 72% wifi on all day 50-60 texts and probably an hour of fb hahaha

To check what hardware go to settings-about phone-hardware info
Also, is anyone using aftermarket batteries or stock batteries for these impressive battery lives?
Sent from my PC36100 using XDA App

randymids said:
To check what hardware go to settings-about phone-hardware info
Also, is anyone using aftermarket batteries or stock batteries for these impressive battery lives?
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
im feeling pretty stupid right now haha i cant see it. Im running miui rom and i go to about phone>more info but i dont see it

Ahh in ava z3 its similar to stock where settings-about phone has software/hardware infos... I wish I could tell you how to find out because I have been getting the feeling the way hardware reacts to Rom and kernels is a big deal. My buddy has hw:004 running same Rom and kernel and gets about double the battery life
Sent from my PC36100 using XDA App

Ok so ive been changing different kernels just to see if i can get different results. Now im using KingKlicks #12 w/ myns rls5. I use my phone alot & am just looking for SOMETHING that will help my battery life.
So the other day i was in this super retardly long useless meeting. Less than 10 texts, no internet, no apps no nothing. 4g, GPS, Wifi & bluetooth all off. Granted that isnt my regular useage (I really use my phone) but this is the best battery life i could get. (SetCpu on w/ a helluva lotta profiles)
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Whaddya think? What other kernels can use that are made for heavy usage? What else can i tweak....or am i just doomed to carrying a charger everywhere i go??

+1 for a netarchy 4.3.x kernel:
I'm on the original red battery

randymids said:
Ahh in ava z3 its similar to stock where settings-about phone has software/hardware infos... I wish I could tell you how to find out because I have been getting the feeling the way hardware reacts to Rom and kernels is a big deal. My buddy has hw:004 running same Rom and kernel and gets about double the battery life
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I've been thinking the same thing I've got a day 1 evo with hardware :v002 and some of the stock kernels worked better im currently trying the modded HTC #15 but battery life is not great with regular use
posted from a Myn EVOlved device powered by Android

deathsled said:
+1 for a netarchy 4.3.x kernel:
I'm on the original red battery
Click to expand...
Click to collapse
3 days??? wait wait...either thats photoshop or you've got a different phone than me!!! In any event im flashing netarchy as soon as i finish typing this!!!
Do you use your phone? Like heavy useage? Or is that 3 days with absolute minamal useage?? 4g, wifi, gps & everything else off??

The question is, what is the definition of best battery life... How long the battery will last with the phone doing nothing? If so, I can get a good 4-5 days using the setup in my sig with just a minimum of texts, calls, and emails, while on wifi.
However, actual practical usage, including 3g, 4g, web, text, calls, etc. Results in a good 1-2 days of battery life. I think once a user has all the bugs (rogue apps that are causing wakelock issues) worked out, that user should focus on optimizing the system for best results for the way THEY use THEIR phone, not the way someone else uses theirs.

^^Agreed i am trying to find the best fit for the way "I" use it however suggestions are welcome. BTW you get 4-5 days 'cause you've got the extended batt. I wanna squeeze every last drop of juice out of my stock battery!! If you can help me there then by all means...please do!!!
Edit: side bar i just flashed netarchy's 4.3.2 cfs-nosbc-havs-more-universal and everythings fine but when i plug my charger in AC or USB it throws my phone into a boot loop....Any ideas?? Btw yes i am gonna find the netarchy thread and ask in there as well.

What's the best one for Myns Rls 5 ?
Sent From One BadAss Rooted Evo 4G On Myn's Warm 2.2 Rls 4 Steroids Via XDA App. ;-)

gpz1100 said:
The question is, what is the definition of best battery life... How long the battery will last with the phone doing nothing? If so, I can get a good 4-5 days using the setup in my sig with just a minimum of texts, calls, and emails, while on wifi.
However, actual practical usage, including 3g, 4g, web, text, calls, etc. Results in a good 1-2 days of battery life. I think once a user has all the bugs (rogue apps that are causing wakelock issues) worked out, that user should focus on optimizing the system for best results for the way THEY use THEIR phone, not the way someone else uses theirs.
Click to expand...
Click to collapse
What's the best way to find the wake lock issues, are you referring to maps, voice, or other random apps running in the background? If so what is the best way to keep these apps but put an end to the wakelock issue.
I am still running ava z3 but I flashed the netarchy 4.3.2 cfs-nosbc-havs-more this morning, downgraded my pri and nv because netarchy said to for battery issues, gave it a full charge from 0, and my battery was garbage... 5-6 hours with a moderate use. Calks modded htc 15 w/ uv and sdfix worked way better, but still can't find these magic 20 hour battery lives that I am dying for.
Reflashed the new pri, nv, and Calks modded 15 and my hunt continues, about to give myns a whirl despite liking ava z3 a lot.
How simple is myns, bloatware gone, fairly simplistic, pretty snappy and lag free? Difference between rl 4 and rl 5?
Sent from my PC36100 using XDA App

Use the battery history function in Spareparts to see what's causing wakelock. As for ways of dealing with it, that's up to the developer.
I don't have too many apps on my phone, just the necessities. Of the main apps I use, k9 and handcent both had issues.
With k9, any time I'd receive an email (using imap), the phone would stay wake locked for 60 seconds. This may not seem like a lot, but after getting many messages throughout the day, that could add up to an hour or more. I experienced this both with fresh 3.5.0.1 and evio2 1.75. When Evio2 1.7.7 came out, I was hesitant to switch - I'm not one that flashes roms every other day just for the hell of it. I already had the phone set up and configured. Decided to give it one more shot, I installed 1.7.7 from scratch and started reinstalling apps.
Through out the process, I was very careful to monitor wakelock state. For what ever reason, k9 was no longer causing wake lock. Something in 1.7.7 changed. It wasn't kernel related because I've tried way too many kernels with similar results. So now, the only wake lock is when the program actually receives an email. Usually 1-3 seconds per email received.
Now with handcent, there is a known issue if the popup function is enabled. Anytime a text is received, with popups enabled, the phone enters a wakelock state until that text is acknowledged. This occurs even if the only popup task is to display the text, and NOT turn the screen on, or flash the led. The fix? Disable popups in handcent. I've posted on their forums, but haven't gotten any acknowledgment. I'll continue to use the program, but without this functionality.
For other programs, best bet it to try to narrow down the conditions causing wakelock and either work around them, or work with the author to try to resolve.
Any as for stand by time, I'm sure even with a standard battery, 4 days is possible if the phone is idling the whole time with data turned off, and minimal or no other usage.
As for kernels, there are other factors at play besides the kernel itself. These include the governor in use and its parameters. Two otherwise identical phones with the same kernel and governors, but different governor parameters will result in different battery life.
In the end, I chose to stick with the conservative governor.
These are the governor parameters I changed in the init.d folder
Filename: 01cpufreq_screenstate_scaling
Code:
MAX_CPU_SPEED_VDD="921600"
MIN_CPU_SPEED_VDD="245000"
#MIN_CPU_SPEED_VDD="384000" DEFAULT
#MAX_CPU_SPEED_VDD="921600" DEFAULT
CONSERVATIVE_SAMPLING_RATE="50000"
CONSERVATIVE_UP_THRESHOLD="80"
CONSERVATIVE_DOWN_THRESHOLD="55"
CONSERVATIVE_FREQ_STEP="10"
#CONSERVATIVE_UP_THRESHOLD="65" DEFAULT
#CONSERVATIVE_DOWN_THRESHOLD="35" DEFAULT
#CONSERVATIVE_FREQ_STEP="15" DEFAULT
These settings were not arrived at trivially, but were changed slightly one at a time, then tested by using the phone. I was looking for decent response/user experience. I was also trying to get the phone to utilize a larger range of cpu speeds than originally programmed into the ROM/kernel. Google the different parameters to understand what they're referring to.
Edit: I'm also using the -100mV undervolt script as opposed to -50mV that the rom originally comes with.

[Q] How far behind am I?

Hey,
I'm currently on Floyo 1.01, and I know the latest version of that is 1.20
My question is, should I upgrade to Floyo 1.2, or am I better off with:
1) Another Froyo ROM?
2) Are there any stable Gingerbread ROMs I could try instead?
I know there's lots of positives and negatives of all sorts of ROMs, so to specify exactly what I'm looking for/not:
1) Stable. This is a must, it's my only phone and must work well.
2) Fast. I know the Hero's aging, but as fast as possible.
3) Ability to overclock preferred.
4) Home screens don't matter, I use Zeam.
5) Lock screen doesn't matter, I use WidgetLocker.
Thankyou in advance for any suggestions,
-Mcintyre94.

You might wanna try "[ROM]Elelinux-7.0.0-RC4-Hero-v1.7.1 (2011-04-01)", its great... quite stable.... and updated quite regularly.

Okay, thanks. I'll have a look at that one. Out of interest, when you say it updates regularly, does that mean it updates automatically or do I need to continually re-flash updates? Not that it would affect a decision much, just interested.

You manually update by re-flashing,Although there shouldnt be any need too as its pretty much complete

You might want to stay away from the Gingerbread ROMs for the time being. A few users are still having memory and graphics bugs. Those issues are being worked on, so that may all be fixed soon.
As far as Froyo ROMs go, I can guarantee that if you upgrade to Floyo 1.2.0 you will not be disappointed. Back when I was running Froyo that was my favorite ROM. Elelinux's Speedmachine also gets good reviews, but I haven't tried that one myself.

try cronos froyo 1.8.0.... is really fast
the best gingerbread is elelinux 1.7.1

I think the best and most stable ROM at the moment is Elelinux 6.2.0 Speedmachine v2. You have to give it a try

Imperticus said:
I think the best and most stable ROM at the moment is Elelinux 6.2.0 Speedmachine v2. You have to give it a try
Click to expand...
Click to collapse
it is closely matched with vr13 speedwise. now launcherpro has been recently fixed to be smooth on 2.3 it finally works well together with ele's 2.3 rom.

A long long time ago my flashacolism ended, when flashed latest Floyo + Flykernel12pre6 + Gingerbread theme. It just works. Checked also correct memory settings in LauncherPro and it is smooth&fast all the time.
Won't flash CM7 until stable release (not sure will it ever roll out for Hero)
''quite stable'' is not as far as ''stable'' ROM

From 6th of February I have used TastyGinger, superstable from day one and I am now addicted to low DPI setup, built in oc too, highly recommended!
http://forum.xda-developers.com/showthread.php?t=943720

Can you guys tell me which froyo rom has best battery life?

Dark Emotion said:
Can you guys tell me which froyo rom has best battery life?
Click to expand...
Click to collapse
Well depends how you use your phone really, in standby GB is the best in general, But I would go for Cronos Froyo 1.8.0 For the best bat life. If you want Froyo

rdejager said:
Well depends how you use your phone really, in standby GB is the best in general, But I would go for Cronos Froyo 1.8.0 For the best bat life.
Click to expand...
Click to collapse
Just out of curiosity how much standby life do you get from GB and which ROM? And how much from Cronos Froyo?

Yeah every phone seems to respond differently to each rom, mine seems to get best life out of Elelinux Froyo Roms and the latest GB roms

erasmux said:
Just out of curiosity how much standby life do you get from GB and which ROM? And how much from Cronos Froyo?
Click to expand...
Click to collapse
Ehm standby on GB, well 1 to 3% a day with the stock battery on the CM nightly buld 35 | 2 to 3% an hour with Cronos froyo. Remeber that your rom was kinds nice, the Floyo 1.2.0 with the battery that is.
I am not a Froyo user anylonger, the battery goes way to fast on that one in general, I am a sense 2.1 user or GB, I like GB the most.
When I got home at 17.30 my battery was 50% and now it is almost 21.00 and it is still 50%
I am going to make a screen give me a few, not want to plug in my phone and reset the timer XD.
EDIT: Pics
When I got that hill down I was on IRC, MSN and I had music, browsed some sites and installed some apps ect ect
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Keep in mind that I removed some apps that always run, Like Talk, I used to remove the themechooser but Now I got the good Cyanbread and I love it, and voicedialer is gone, ehm what more.. Some android dev stuff, Spareparts ehm thats about it. I hate to much stuff on my phone, I dont use A2SD. so that may help to.
EDIT, going to try something Lets see what happens

rdejager said:
Ehm standby on GB, well 1 to 3% a day with the stock battery on the CM nightly buld 35 | 2 to 3% an hour with Cronos froyo. Remeber that your rom was kinds nice, the Floyo 1.2.0 with the battery that is.
I am not a Froyo user anylonger, the battery goes way to fast on that one in general, I am a sense 2.1 user or GB, I like GB the most.
When I got home at 17.30 my battery was 50% and now it is almost 21.00 and it is still 50%
I am going to make a screen give me a few, not want to plug in my phone and reset the timer XD.
EDIT: Pics
When I got that hill down I was on IRC, MSN and I had music, browsed some sites and installed some apps ect ect
View attachment 560483View attachment 560484
Keep in mind that I removed some apps that always run, Like Talk, I used to remove the themechooser but Now I got the good Cyanbread and I love it, and voicedialer is gone, ehm what more.. Some android dev stuff, Spareparts ehm thats about it. I hate to much stuff on my phone, I dont use A2SD. so that may help to.
EDIT, going to try something Lets see what happens
Click to expand...
Click to collapse
hmm, I don't think you can test battery life over short periods of time such as hours. The battery meter is highly non-linear. Individual percentage really mean nothing as at times I can last hours without it dropping even 1% and then without use it may drop a few percentage in a few minutes....
The best way to test battery life is to charge it fully overnight - don't stop when it reaches 100% as it charges "over 100%". Then use it until you reach below 10% (or if you want until it totally dies ).
From Floyo 1.2.0, I had one week which I barely used the phone (wifi off the whole time, a few phone calls and some SMS). I lasted 7.5 days without recharging and reached I think something like 7% on the battery. So I guess the standby battery life on Floyo 1.2.0 is around 8-9 days.
If anyone has done similar testing with other ROMs, I'd be interested to hear there results.

erasmux said:
hmm, I don't think you can test battery life over short periods of time such as hours. The battery meter is highly non-linear. Individual percentage really mean nothing as at times I can last hours without it dropping even 1% and then without use it may drop a few percentage in a few minutes....
The best way to test battery life is to charge it fully overnight - don't stop when it reaches 100% as it charges "over 100%". Then use it until you reach below 10% (or if you want until it totally dies ).
From Floyo 1.2.0, I had one week which I barely used the phone (wifi off the whole time, a few phone calls and some SMS). I lasted 7.5 days without recharging and reached I think something like 7% on the battery. So I guess the standby battery life on Floyo 1.2.0 is around 8-9 days.
If anyone has done similar testing with other ROMs, I'd be interested to hear there results.
Click to expand...
Click to collapse
Lets change the topic name, battery thoughts XD or something. Yea and I know all that but that what I said was of some old GB rom I ran a long time ago when I tested it all. Then I would last a week easely on standby when I went to the USA. Had nothing to do with my phone their anyway.
Way to expensive.

erasmux said:
(...)
From Floyo 1.2.0, I had one week which I barely used the phone (wifi off the whole time, a few phone calls and some SMS). I lasted 7.5 days without recharging and reached I think something like 7% on the battery. So I guess the standby battery life on Floyo 1.2.0 is around 8-9 days.
If anyone has done similar testing with other ROMs, I'd be interested to hear there results.
Click to expand...
Click to collapse
7-9 days? what kind of battery you got? some nuclear powerplant builtin?

riemervdzee said:
7-9 days? what kind of battery you got? some nuclear powerplant builtin?
Click to expand...
Click to collapse
uuh. i'd like to have one too

Thanks for all your responses guys, I think I'll be trying out the Gingerbread Roms. If anyone gets a nuclear battery, I could do with one too - it's one of the annoyances of having a smartphone.

Show your battery record Genuinely

Hi guys,
After buying s2 i was worried about battery life. Because first two days it was like 12-14 hours of medium use.
But now its marathon :d
See some shots..
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Last image is usage of previous charge.
I was a die hard fan of lg phones from optimus one to optimus black but i am happy now that i switched to s2
Cheers guys and please show your records as well.
Sent from my GT-I9100 using XDA App

I thought i was getting good battery life with medium to heavy usage (27 hours) on Cognition 1.15 but that is exceptional, can you tell me your set up as to how you achieved this amount of battery life.
cheers

Tegrak's kernel and underclocked.
Frozen samsung apps. and brightness mostly 0% as i am fairly fine with the lowest brightness it doesn't hurt my eyes.
also one more thing, i am using overclocking upto 1300 as well and you will be surprised most people will tell you to go underclock to save battery but i didn't and i am just happy with 1.3 Ghz blazing speed.
Here's a shot of running.
REMOVED
Also i used camera for recording movie for about 50 minutes in 720P and 50+ photographs as well which is not mentioned in the above post. I will post once again when my battery will reach 1% because when its below 10% it drops really slow and allows me to use it more unlike when its full.

Sit it on a desk and stare at it. The average screen on time is 5 hrs. You can use that in a day or spread it across 3 days.
jonny68 said:
I thought i was getting good battery life with medium to heavy usage (27 hours) on Cognition 1.15 but that is exceptional, can you tell me your set up as to how you achieved this amount of battery life.
cheers
Click to expand...
Click to collapse
Sent from my GT-I9100 using XDA App

One more thing, i only recharge battery when its below 5% or mostly under 2% to full turning it off. And ofcourse this only first week of using the phone, hope it will increase a bit more by next week.
[Note: I personally believe plugging in and out of charger makes the phone battery drop faster]

chaplu said:
Tegrak's kernel and underclocked.
Frozen samsung apps. and brightness mostly 0% as i am fairly fine with the lowest brightness it doesn't hurt my eyes.
also one more thing, i am using overclocking upto 1300 as well and you will be surprised most people will tell you to go underclock to save battery but i didn't and i am just happy with 1.3 Ghz blazing speed.
Here's a shot of running.
img removed
img removed
Also i used camera for recording movie for about 50 minutes in 720P and 50+ photographs as well which is not mentioned in the above post. I will post once again when my battery will reach 1% because when its below 10% it drops really slow and allows me to use it more unlike when its full.
Click to expand...
Click to collapse
You should blur out your IMEI number from the screenshot buddy.

What ROM are you using?
I usually have brightness set to auto, same as you all Samsung apps frozen, am not using Tegrak i don't believe it's compatible with Cognition ROM, are you using Juice Defender Ultimate or other apps,etc,etc, im on setcpu im 200 min - 800 max - on demand and screen off profile - 200 min - 500 max - consertivave - priority 100.
Seriously impressive all the same..

jonny68 said:
What ROM are you using?
I usually have brightness set to auto, same as you all Samsung apps frozen, am not using Tegrak i don't believe it's compatible with Cognition ROM, are you using Juice Defender Ultimate or other apps,etc,etc, im on setcpu im 200 min - 800 max - on demand and screen off profile - 200 min - 500 max - consertivave - priority 100.
Seriously impressive all the same..
Click to expand...
Click to collapse
I am using stock KF3 rooted nothing else i am using except described in previous post.
Cheers.

That is the best battery life ive ever seen on XDA for any type of smartphone never mind one like the GS2, did you use the Internet/Wi-Fi/GPS/Bluetooth,etc, much,do you have any widgets on your screen, push e-mail,etc, im amazed your getting that amount of time without using Juice defender or some other similar app.

jonny68 said:
That is the best battery life ive ever seen on XDA for any type of smartphone never mind one like the GS2, did you use the Internet/Wi-Fi/GPS/Bluetooth,etc, much,do you have any widgets on your screen, push e-mail,etc, im amazed your getting that amount of time without using Juice defender or some other similar app.
Click to expand...
Click to collapse
Bluetooth yes for 10 minutes transfering some files.
Gps yes for around 1 hour (you can see that in pics atleast it shows usage for ndrive there)
wifi yes around 1 hour but its always on mostly (mostly used for market to download and test applications, gmailing and also some browsing)
3g or edge no i didn't use it.
Games yes i played like drag race etc.
widget yes, battery widget and the running app widget and live wallpapers.

Mine, I think there's a little (big) problem :
Considering the first 8 hours were during the night so I didn't touch my phone :
Running on VR2.1, many things push or so (like 15/30mins refresh) [mails, fb, twitter, news, weather, etc], and good modem (KG2) and CF-Root 4.1.
Any idea/advice please ?
A better rom maybe ?
Thanks in avance

Intratech said:
You should blur out your IMEI number from the screenshot buddy.
Click to expand...
Click to collapse
For those of us n00bs here, what or where is the IMEI number?
Also just to clarify, this is a unique number for each phone, yes?

intruda119 said:
Sit it on a desk and stare at it. The average screen on time is 5 hrs. You can use that in a day or spread it across 3 days.
Click to expand...
Click to collapse
Nuff said.
@OP- What's that Widget is (temp, voltage of battery)? Forgot the name!
Regards.

intruda119 said:
Sit it on a desk and stare at it. The average screen on time is 5 hrs. You can use that in a day or spread it across 3 days.
Click to expand...
Click to collapse
+1
The real secret to great battery life is to disable all the data connections and not use the phone. Since most people are pretty active with their phones, threads about stand-by time are pretty meaningless. Actually, with over a dozen battery life threads already running, you could say new battery life thread are pretty meaningless too.

diby_2000 said:
For those of us n00bs here, what or where is the IMEI number?
Also just to clarify, this is a unique number for each phone, yes?
Click to expand...
Click to collapse
Individual to eachphone usedto identify phone on network.Blocked block after theft .Illegal to change. jje
Sent from my GT-I9100 using XDA Premium App

Ok thats along the lines of what I thought it was. Thanks.
Didn't know it was possible to change it, illigal. Huh
But can some one tell me where it is shown so I can block it if I ever post some screen shots?

I'm on stock K2-CL. I used 3G just a bit today while in a restaurant, wifi is always on, but I normally sit in front of the computer most of the day, or use my tablet at home, so I do very light surfing - mostly while on the can.
I've not installed "app freezers", nor underclocked the processor, nor rooted or removed anything that isn't stock android. Not stopping tasks in the task manager. In the screenshot below, I did play around a bit on Google Earth for 15 min or so, I'm surprised not to see the android market in there because I feel that's what I used most. I use a live wallpaper that's fairly bright (moving clouds).
Brightness on auto - automatic gmail notifications, contact syncs etc.
I'm going to go on a big trip next week, where electricity will sometimes be optional. I do have that Samsung battery case thinggie coming the mail next week - and already have an external battery as well for emergencies, because this phone will die in an hour or two using the gps, or playing games, or doing serious web surfing - or a combination of those things. It runs very hot too if you use it constantly several hours (drove 500 kilometers last week, the phone was very very hot - seemed unhealthy).

If you hold the power button along with the home button it takes a screen shot.
Thought id say to make it easier for ya in future!

thanks a millions

Don't mind the n00b Here.
Found the IMEI number in the status tab of about phone.
Goto remember to keep this out of public photos.

I Finally Did It! (24 Hour Battery)

I have been desperately trying for SEVERAL months to find a way to get my Samsung Epic to last ONE DAY. Many of you might say thats EASY but not for me. You see I am a POWER USER. Not one of those send a few text message, listen to some music, play a game or 2 users. I actually TALK on my phone a LOT.
I purchased a Yoobao 2800 MAH battery a couple months ago, thinking it would solve my problems and to my dismay I could ONLY get about 5-6 hours with the way I use my phone. So I began searching for apps and configurations that would help me achieve my 24 Hour goal and yesterday I finally found a configuration that works.....
My Results
Battery Life 25 Hours which included 4 HOURS OF ACTUAL TALK TIME W/ BLUETOOTH USAGE
Including 3 email accounts (2 Yahoo set to 1 hour check and 1 Corporate "PUSH" email)
A WHOLE GANG Of TEXT AND PICTURE MESSAGES...LOL
What I Have
Samsung Epic w/Yoobao 2800 MAH Battery
Running Stock Rooted EG22 (Leak) and Generation X "Green" theme.
What I used
Set CPU:
Set up profiles for maximum battery save when screen was OFF and when battery went below 30 percent
Juice defender (Free Version)
Tweaked for maximum efficiency using advanced settings
What I did
Themed everything as dark as possible (Go SMS Pro, Go Dialer, Go Contacts)
No Live wallpaper (Ovious...lol)
My Findings:
Contrary to popular belief....Tasks running in the background IS NOT the biggest source of battery drain. HAVING YOUR SCREEN ON IS! I was having NO success with any of the top task killers so I STOPPED USING THEM ALTOGETHER. All they seem to do is run constantly in the background (Even when the screen is off) killing apps that will RESTART themselves anyway after a few seconds. Juice defender works in a different way. By cutting off the data connection when the screen goes dark. That means any time Ii was on a call and the screen was dark, my data was cut off. (I dont usually need it when I am on the phone anyway) During this entire process I had a rather light wallpaper on my phone. so Im sure I could probably have saved a lil more battery if I wanted to.
Hopefully this will help some people get more battery life out of their epics. After all, whats the point in having a great phone if you can only use it (the way it was INTENDED) for a few hours.
Good Day To All!

lolz
im runnin ec05, srf1.2 rom, bright red & black theme(transmattered reds made by me) pulldown animation, stock battery, no memory mods, live wallpaper(my theme is mostly transparent so the live wallpaper is playing almost all the time), play pandora average of 4-5hrs a day, constantly checking fb xda email market(i have 120ish apps lol), & i get about 13hrs a charge...
you should try those changes on srf1.2 rom if you already havent... some people running similar setups have reported 2 full days or more...
but instead of set cpu you should try voltage control

BigBrotherMotown said:
That means any time Ii was on a call and the screen was dark, my data was cut off. (I dont usually need it when I am on the phone anyway)
Click to expand...
Click to collapse
Pretty sure when you get a phone call it shuts off 3G anyways. Atleast whenever My phone rings my 3G symbol vanishes completely.
Congrats on the 25hours though

I dont think thats true... I've been on a call using speakerphone and 4g data at the same time... I think 4g data still works if you are on a call
Sent from my SPH-D700 using XDA App

The key to good battery life is making sure your phone is sleeping properly when not in use. If CPU Spy shows 100Mhz much higher than deep sleep, then you got something that is keeping your phone from sleeping. I had a problem with some HP printer monitor on one of my computers pinging my phone constantly on my wifi network that would kill my battery if I let it sit with wifi on at home.

puff601 said:
I dont think thats true... I've been on a call using speakerphone and 4g data at the same time... I think 4g data still works if you are on a call
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
when on a call 3g is automatically turned off & 4g is still usable

CapsLockKey said:
The key to good battery life is making sure your phone is sleeping properly when not in use. If CPU Spy shows 100Mhz much higher than deep sleep, then you got something that is keeping your phone from sleeping. I had a problem with some HP printer monitor on one of my computers pinging my phone constantly on my wifi network that would kill my battery if I let it sit with wifi on at home.
Click to expand...
Click to collapse
The only way to do that with an ANDROID device is to power it off completely...LOL

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In the bottom right corner up there 1day 8 hours at 39%. I run srf, genocide, juwe ram tweaks, and set cpu with profiles to run the frequency lower as the day goes on.
Edit: I see now that that is a very ****ty picture. Man I just can't get screenshots right at all..
Cd's or tapes?

Talking on the phone and the 3g network use the same antenna, so you can only do one or the other. 4g and wifi use a different antenna so they will still work for data while on the phone.

Stringyquark said:
Talking on the phone and the 3g network use the same antenna, so you can only do one or the other. 4g and wifi use a different antenna so they will still work for data while on the phone.
Click to expand...
Click to collapse
Its not the antenna its the chipset. Bluetooth and wifi share the same antenna but both can be used at the same time.

After I flashed the EG22 Modem and Leak I had a 25 hr battery, but now I get about 10 hrs. Weird.

I have juice defender but I never use it.
Sent from my SPH-D700 using XDA Premium App

xizzmatt said:
After I flashed the EG22 Modem and Leak I had a 25 hr battery, but now I get about 10 hrs. Weird.
Click to expand...
Click to collapse
I saw roughly the same thing. Incredible battery life for the first day or two, then it would refuse to charge either of two batteries past 60%.

kynetx said:
I saw roughly the same thing. Incredible battery life for the first day or two, then it would refuse to charge either of two batteries past 60%.
Click to expand...
Click to collapse
The same thing happenned to me too. When I flash the 8 screen lockscreen with the hotspot fix my battery life decrease.
Xhyperion said:
I have juice defender but I never use it.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
Juice defender is good when you want your phone to control your data.

srf 1.2, i had up to 1 and a half days, with cm7 i run two days easy.
righy now im at 74% battery, 1 day and 2 hours.

Magic Oreo said:
srf 1.2, i had up to 1 and a half days, with cm7 i run two days easy.
righy now im at 74% battery, 1 day and 2 hours.
Click to expand...
Click to collapse
IS THAT WITH A STOCK BATTERY?!?
Thats unbelievable....

Until the newest RandomRom 2.3 Hawk I had the same problem trying to get my phone to last 24 hours. Now I have the RandomRom 2.3 Hawk installed with bloatware Removed, voodoo sound V9 module loaded, busy box pro and golauncher ex with over 100 apps also. 27 hours and I still have 14% battery life and that has been after using 4g for about 3 hours, flashlight for about 1 hour(teslaLED), played games for about 2 hours combined, sent about 40 emails, texted all day(about 150 texts), browsed the web for about 1 hour, watch some youtube videos for about 30 minutes and used navigation for about 30 minutes(coPilot). That is also with weather bug auto updating every hour and gmail sync'd to do its thing automatically. I am happier than I could ever describe now...I think I will finally leave my phone alone for a while now and stop flashing a million roms since I feel I have the best made for 2.3.4 now.

battery
I get about 18 to 20 hours of normal everyday use out of EG22 but i stay on wifi. on ec05 the most i could get is 6 hours, bottom line no matter what i tried. and thats with a stock battery.