Database Users

still on 1.32 battery life is it better on 1.47?

my evo is rooted on 1.32......and my battery life is ok....and just wondering if it can be little better if it's on 1.47 I usually get a decent amount of battery life and I do carry an extra battery with me. I'm on fresh .3 right now and I usually get decent battery life for one battery for a 1/2 day with some voice calls web surfing and texting.....is it worth going to....I searched and searched for threads but they're from June and now its August so whats the verdict...and its gonna be a pain rooting again but I'd like to know.......at least! please let me know!

I doubt the OTA will give you much of a boost if you're only getting half a day. I streched my usage to 3 days of light usage.
SetCPU adds a little bit by underclocking the CPU when the screen is off. Juice Defender turns off 3g and allows it to be turned on every x minutes to allow syncing. 3g saves the most battery. As long as you don't use 4g all the time (IMO it's a big waste, good when plugged in)
I get a good 16-18 hours of moderate use on one charge and still have 20-30% battery left.

actually id have to say, yes the 1.47 update did help alot, id say ud get 25% + on battery life, but yes SetCPU does help alittle, and what do u mean root AGAIN, just find a rooted stock 1.47 rom or something

I noticed a slight difference after the normal 1.47 OTA but an even better difference after rooting / flashing a rooted stock 1.47. Really did notice a more appropriate battery length, especially when in "stand by" whereas before it seemed to drain when not in use more than it should.
Can easily get through a day with medium use, heavy at time with nav etc

[Q] Best battery life Rom?

What is the best rom for the Epic that will improve battery life? I have an Evo. My wife has an Epic. Mine will go all day and end up at 45-50%. Hers will end up at 15-20%. I know that 2.2 will make some great changes to the battery life (God I hope so), but what choices do we have now?

Epic Experience with Phoenix kernel gives me a good 14-18 hours with medium usage.

Rims don't change anything really battery related. Kernels are what effect battery life.
Also, you don't need a specific kernel to get amazing battery life. Get these apps
Spare parts
Autostarts
Juicedefender ultimate
Spare parts will tell you what is killing the battery
Autostarts will disable the drm crap on startup
Juicedefender will disable the data and wifi when not needed.
I can get 24 hours on my epic without even trying to conserve battery.

pdaddy said:
What is the best rom for the Epic that will improve battery life? I have an Evo. My wife has an Epic. Mine will go all day and end up at 45-50%. Hers will end up at 15-20%. I know that 2.2 will make some great changes to the battery life (God I hope so), but what choices do we have now?
Click to expand...
Click to collapse
Shameless plug but I am getting 16 hours with heavy use
http://forum.xda-developers.com/showthread.php?t=829650

rjmjr69 said:
Shameless plug but I am getting 16 hours with heavy use
http://forum.xda-developers.com/showthread.php?t=829650
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define heavy use

how is the speed and performance of the epic experience and pheonix combo? im a speed freak when it comes to my phone but im as in desperate need of good battery life. any suggestions and feedback would be appreciated.
Sent through the Matrix

fromchaos0646 said:
how is the speed and performance of the epic experience and pheonix combo? im a speed freak when it comes to my phone but im as in desperate need of good battery life. any suggestions and feedback would be appreciated.
Sent through the Matrix
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Speed freak and in desperate need of good battery life are polar opposites of each other. Nothing the phone does at this point needs the processor to be clocked any higher than stock and doing so is detrimental to battery life. The phone is plenty speedy using that combo. You might get the occasional hiccup in a menu for a half a second, but it is worth it for the amazing battery life, and it isn't a big deal at all.

yeah i realize they are complete opposite. im just trying to find a good balance between battery life and power. i may just have to sacrifice a little power for battery life then. i will try this combo maybe tomorrow, seeing as though i have homecoming tonight lol.

i get 60 hours + with moderate usuage. andromeda rom which includes andromeda kernal. You do not need spare parts or any task killers. 24 hours is weak battery llife. phone calls is the most extensive battery drain. if i do not make a call i can browse all day and still have 40% left.

This is how you get amazing battery performance.
I have some very VERY helpful hints of great battery life for the Epic 4g. (as i am on hour 26 to 28 and have 20% left with about 1 to 1.5 hours of screen on use.)
First off, use black, or almost black background. Our screens are superAMOLED. This means that if the screen is showing black... those particular black pixels... are simply not on. If you have the home screen black, and have no icons on it, then the status bar is all that is using power... maybe 6 or 8 percent.
Next, Lose the brightness. A few helpful hints on this. 1) uncheck the autobrightness in the display settings 2) turn the brightness down in the display settings 3) If you slide your finger from right to left across the status bar at the top, the screen will dim, if you slide your finger from left to right, it will brighten(this causes accidental brightness 4) cover this light sensor on the right side at the top (I believe) because the phone seems to have a problem always autobrighting even with the uncheck in the settings. This is done best with electrical tape, or perhaps finger nail polish. These things should ensure to always be at minimum brightness
Next, Install Frankenstein Froyo Rom(lightest rom=less cpu usage/blackest rom=less screen battery usage), And Genocide Kernel(undervolted)
Next, install task killer(keeps the rom at optimum efficiency meaning less cpu usage assuming you are killing the apps 3 or 4 times a day) install set cpu(This allows you to limit the cpu clock speed(400mhz is optimal usable and battery settings)
Things to remember, ALWAYS TURN THE SCREEN OFF.
If you pick it up every thirty seconds to see if you have a text, then just sit it down... whats happening now.. The screen is staying on for another 15 seconds probably. DUH!!! bye bye battery!!
TURN OFF THE SCREEN BEFORE YOU SIT THE PHONE DOWN!!!
Turn off gps when not in use.
Turn off wifi when not in use.
Turn off 4g when not in use
Dont use it as an mp3 player.
Dont talk on speaker phone.
Those last few were pretty obvious.. but some people need to be told.
I Hope this helps anyone looking to conserve battery. Follow these steps and i promise 24 hours plus ever time and often as much as 48 hours.
Enjoy
EDIT****
By the way, When you set yourself up with this rom, you are making your phone TWICE as fast... LITERALLY. Hard to believe that a ROM could be twice as fast.
With stock android2.1 this phone gets 800 to 900 in quadrant(benchmark tool/tell how fast your phone REALLY is) Stock android 2.2 quadrant score is a little better scoring as high as 1000.
With this setup, i have gotten as high as 1950 in quadrant. No joke. This is reflected as you cant even tell the phone is clocked down to 400mhz without heavy apps and REALLY paying attention.

Best rom/kernel combo for battery life?

I know this is beating a dead horse to a pulp, but I'm going to ask any way. I have never been a typical user, and I burn my phone to the ground fast. My usage fluctuates so much testing is almost impossible.
Just asking anyone who has had the patience what they have found the best results with.
I'm currently on Super Clean 0.9 and the OTB ul 1200. Flameless responses appreciated.
Sent from my SCH-I500 using XDA App

I have the same setup that you do and it seems that I am blowing through my battery even faster with the lower voltage, which makes no sense. I also have noticed significantly worse battery life with DJ05. Not sure if you have noticed these things as well and was the reason for the post.

Im not sure if super clean 0.9 is based off of dj05 as I use my own fragmented rom with prices of everyone elses ROMS. But the best battery life I get is out of dj05 for sure. Running a random kernel that I think adrynalyne or jt posted in irc and I usually get a full day with moderate to heavy web browsing and 3-4 hours of music. But I also have outstanding 3g in both of the places where I live so that doesn't deplete my battery like most people
Sent from my phone using XDA App. With a very flame-free response sir wolven

With stupidfast 1.54 and superdark dj05 I feel like battery life has improved. I can go through a whole day, minimal use, and still have 82% battery life at the end of the day or hover around 40-50% with regular use.
its 9:20pm right now and I am still at 76%. With some browsing, music, phone calls.

Kamar234 said:
I have the same setup that you do and it seems that I am blowing through my battery even faster with the lower voltage, which makes no sense. I also have noticed significantly worse battery life with DJ05. Not sure if you have noticed these things as well and was the reason for the post.
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I have seen the same with lv kernels both here and on my N1. possibly needing more pull for higher resource usage, but I'm lacking on the technical knowledge to make sense of that, and have had too much egg nog as of now.

ksizzle9 said:
Im not sure if super clean 0.9 is based off of dj05 as I use my own fragmented rom with prices of everyone elses ROMS. But the best battery life I get is out of dj05 for sure. Running a random kernel that I think adrynalyne or jt posted in irc and I usually get a full day with moderate to heavy web browsing and 3-4 hours of music. But I also have outstanding 3g in both of the places where I live so that doesn't deplete my battery like most people
Sent from my phone using XDA App. With a very flame-free response sir wolven
Click to expand...
Click to collapse
I somehow seem to get better life from a stock with BS apps removed, but like I said, haven't tested properly. I usually hate battery life threads but have been aggravated by 9-10 hours before death as of late. Probably just excessive usage, but I'm banking on the community to share exp. with their phones.
Flameless response appreciated.

rmtobler said:
With stupidfast 1.54 and superdark dj05 I feel like battery life has improved. I can go through a whole day, minimal use, and still have 82% battery life at the end of the day or hover around 40-50% with regular use.
its 9:20pm right now and I am still at 76%. With some browsing, music, phone calls.
Click to expand...
Click to collapse
ROFL. If I could ever put my phone down i might see better life. I like the stupidfast, but saw some minor performance delays that led me back to voodoo. Not much of an improvement on my life tho.

I have been frustrated with battery life on the sf from day one. I called VZ the other day to have the lady tell me it's normal to charge it 3 times a day due to widgets, I then proceeded to waste my breath by telling her I don't run widgets.. Her response was well they will still drain your battery.
I don't want to un root my phone just to take it in to a store and get the battery replaced and apparently calling them won't get me any where either
Sent from my SCH-I500 using XDA App

I use blue tooth + 3g for an hour drive to work and since the voodoo 5 kernels with the ul settings I have been at 85+% each day from the normal 75+%. So my battery life has improved greatly! Keep up the awesome work devs!
Sent from my SCH-I500 using XDA App

I get pretty decent battery life out of the DJ05 OTB Voodoo sv combo (around 7 hours with periods of heavy usage). I also use juicedefender but I've heard it cant control the CDMA radio properly (ie disable data and etc) but it appears to lengthen my battery life (could just be a placebo effect however)

I had the same problem....crappy battery life with DJ05 and I tried everything from wiping to endless kernel/rom combos. In the end I found out standby was killing me. Like sometimes an hour would pass without me touching my phone and it would drop 5%. Someone suggested dialing *22899 ( I think that was it) and it was instantly fixed. Now idle I drop maybe a percent every 3 hours.

What I have found is the governor does a great job of managing battery use of the CPU in conservative mode. My best combo is jt 1129 novoodoo kernel paired with black hole 2.1+ (I noticed no significant difference between 2.2 and 2.4 for battery life). My usage is fairly high, 3-8 hours of display on each day, running light apps (hardly any music, never games, synched email). Some of my numbers are posted.
Counter to intuition, I can't seem to get aggressive undervolt kernels to give me an improvement. I think it is because the minimum processor has to be kept a little higher to sustain the underlying, so on average more offline drain. This makes no sense though, because when I look at it in os monitor, the governor seems to be doing fine.
Speculating here is pretty dicey, because I have a hard time doing a lot of testing of something that doesn't seem to work. I use my phone a lot, and it is hard to justify having 40% less life span when I know of better combos.
In summary:
* I have NOTHING to say about voodoo kernels.
* negligible difference from leaving wifi and GPS and live wallpaper on.
* negligible difference between dj05 roms.
* running a custom rom gives a noticeable improvement betrays simply running ADW on to of touch wiz
* stock kernel is pretty darned good for battery life, competitive with best kernels.
* the cpu does great self management stock and mostly runs at 100 mhz for my use
* certain under volt kernels appear to under perform during non intensive tasks, but it is hard to be certain.
* bluetooth matters, only turn it on when driving or planning to talk; it does eat battery.
* leave brightness at auto or lower, pick a dark theme wherever possible. Display is the number one eater of battery. White sucks your life.
* there isn't a lot you can do to optimize battery life. Retraining the battery either works or it doesn't, but it isn't really necessary for most system or kernel changes and should be done infrequently.
* there are a few ways to eat battery fast.
* use a theme that shows battery in 1% increments, great for sanity!
* rule of thumb display on uses 4.5 times the power of display off for light apps. -- So theoretical max life on this phone is around 8.5 hours with display on, 42 hours with display off. (typical is about 4.5 hours of display on before I charge it) and yeah I should check my math... I have never had a practical test anything close to 8 hours. I would expect about 6.5 if I never locked it and kept it running in a dark app, with little data and sound use. I think a review I read got about 7.5 hours of playing avatar on loop (probably tmo galaxy s)- a result I found mystifying at the time. My personal best is about 5.5 display on.
Swyped w/ XDA App. When in doubt, jingle.

That was very informative.

I'm on Blackhole 2.4 and I tried one of the Stupidfast undervolted kernels (v1.5.4) for a week and although the battery useage improved a bit, it was somehow affecting my phones wireless reception, wifi and mobile signal. My phone usually flies thru webpages at home when it gets wifi yet it was crawling when I was on that kernel. My phone would randomly freeze as well. I just switched back to JT's 12/12 DJ05 kernel and eventhough battery useage is less desireable, I got my wireless reception back. I also just switched to a dark wallpaper, used to have an ocean / blue sky image as wallpaper. I think those beautiful/fancy weather/clock widgets affect battery useage on how often it updates itself. I switched out of beautiful widgets to gTabSimiClock widget, see if that makes a difference. I like its more simpler look.

Pathetic Battery Life on Vibrant Trigger

SGS Vibrant flashed with Trigger 3.2 the battery lasts for 1 day with wifi usage and even if kept for overnight it drains about 18-20% of battery should i move to a different ROM ?

You could
Sent from a cell tower to the XDA server to you.

Trigger has had one of the best all time battery life for me a everytime.
I think you need to
A) recalibrate
B) re-check to see if any apps are using battery life.
C) flash a rom if none of that works.

Here we go again for the millionth time.....

But for me trigger had the best battery life.
I'm not on the gingerbread roms and it takes me from 100% to 5% in 8 hours overnight even WITH Juicedefender (seems to be about the same without it also).
If anyone has tips on THAT, I would much appreciate it. I've tried calibrating the battery.

There is a setting that you can turn your radios of from x time to x time overnight. I have mine set for 11-6. If I am on after 11, then I take priority. If not then the setting does.
There is also a setting that will open data/radio every 15m/30m/45m/1h/2h or something like that to get updates for somethings (i.e. Beautiful Widgets). I have mine set at 2h. If I want my data/radio open I will do it myself, hence my long interval.
Been using this app for well over a year so I know how to tweak it a bunch. If you have JD+ see my battery guide and it will tell you more about its tweakiness.

Trust me. This guy knows how to use JD, check out his battery guide. It will be worth your time.
Sent from my SGH-T959 (Samsung Vibrant)

i wish i could get my phone to last a whole day without charging, i just dont complain because i know for a FACT that the reason my phone only lasts 10-12 hours is because of ME. im too stubborn and refuse to switch to battery-friendly usage. the biggest thing that impacts battery is the user/user apps. not rom, not kernel, the battery difference from rom-to-rom and kernl-to-kernel is barely noticeable (unless in the rare case where there is a bug, or developmental defect). if there was ACTUALLY a rom in exsistence that TRULY had superior battery life, then you wouldnt get 5-10 different answers in every single "what is best rom/kernel for battery" thread.
the problem is, people want to believe that they can save battery without changing their usage habits. this simply is not possible. no rom or kernel will realistically do this for you. if you remove 1 brick from a bag full of 15 bricks, the bag will be lighter, but still very heavy. you need to download "spare parts" or "process monitor" from the market and start analyzing the way your apps are acting. also look into data syncs that are happening in the background. apps that stay open behind your back/what they are doing, (an app called "autostarts" can prevent apps from self-running under certain scenarios). animation speed. polling for notifications. gps. wifi scans. overclocking. cpu/ram usage. proper sleep. widgets. brightness. 2g/3g. data usage. call time. text volume. - THESE are the things that really affect your battery life.
bottom line is, if you truly want to save battery you are going to have to get your hands dirty...there simply isnt a one-click (or one-flash) solution.

Hmm so i'm now on MIUI and it seems to be giving better battery life, also have been thinking of getting the extended battery for Vibrant is it worth ?

If it sucks so bad, grab one of these. I have it and it has given me at least a 20% increase in battery life. BTW, you must listen to the instruction for the Battery if you get it. 4 or 5 full Drains to 0% and then charge to 100% while device is powered off and re-calibrate after each of these full charge cycles.
http://www.amazon.com/Anker-1800mAh...TNYE/ref=sr_1_3?ie=UTF8&qid=1325868638&sr=8-3

switch to Neo's ICS .
it rocks

Cellanos said:
switch to Neo's ICS .
it rocks
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Click to collapse
But the gps doesn't work on it correct?

What about the extended battery which is around 3500Mah

I just got the 1800 mah batteries for the Epic 4g. They fit in the vibrant like a glove and my battery life has been significantly lengthened.
Sent from my SGH-T959 using XDA App

Winning
dinjo_jo said:
Hmm so i'm now on MIUI and it seems to be giving better battery life, also have been thinking of getting the extended battery for Vibrant is it worth ?
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sent from my Sensation XD

Power saver ON vs. Power saver OFF on HTC One M8

Hi. Im using an HTC One M8 Internation Version clocked at 2.5ghz
This thread is to know if current users of the M8 toggles the power saver ON by default or OFF and do not use it at all.
This thread aims to discuss what are the difference between the two especially the options within the power saver (conserve cpu usage, lower brightness, vibration feedback, and sleep mode)
But as for some using Greenify + Amplify, this power saver might not be needed anymore. What I am concerned now is the "conserve cpu usage" function of the power saver. Does it greatly affect the battery life when the screen is ON? Using max power all the time does affect our SOT?
Thanks for responses in advance. Good day!

Well first thing first... I know if you are running a custom kernel the power saving cpu conserve didn't do anything for me... The kernel runs at its own max speed and everything.
I haven't checked how it affected the stock kernel

I did some tests when I first got it.
The saver limits your CPU at 1.2 GHz. This is the biggest save except the brightness but it doesn't translate into too much battery use. At most you go from let's say 10% per hour of screen time to around 13%.
If you really need the battery I say stick with the extreme version.

Used the power saver at the beginning. The phones battery life wasnt that much better, on the other hand the performance didnt get worse either. I dont believe that it really helps that much, ...

if you don't really like your battery life, you cand consider changing your rom.. some of them have huge improvement in battery life

When I was on stock when I bought the phone used, I tried power saver and it did help battery life a bit but I never measured it. Performance drop was barely noticeable either though. I ended up just using it at night in case it helped deep sleep. Now I'm using VoIP for phone and text so there really is no deep sleep anymore on my phone with that stuff running and data always on, however I still get through a day no matter what rom or settings.