Database Users

Getting ready to give up on my Evo because of battery life.

UPDATED MY SETTINGS
So as many other users I've been having lots of problems with battery life. I've done so many things in an effort to try to improve battery life but it doesn't seem to improve as much as it has for other people
This is what I have done:
Installed Baked Snack 9.7
Have brightness set to automatic
Changed the preferred network type GSM Auto (PRL) to CDMA Auto (PRL)
Installed Juice Defender
Installed SetCPU and have it so that my phone is under clocked to 245mhz when screen is off.
Turned haptic feedback off
Turned Off Auto-Sync
Manage my running applications with Advanced Task Manager and have it so that it ends apps every 30 minutes.
Flashed the newest Radio
Reconditioned my battery like HTC representatives suggested
Even with all these changes I'm lucky to get 10 hours of battery with moderate use. Far below the 16-20 hours that other users claim to get.
I don't understand why my battery life is so bad. Any tips? Maybe something I did wrong?

rockethot said:
So as many other users I've been having lots of problems with battery life. I've done so many things in an effort to try to improve battery life but it doesn't seem to improve as much as it has for other people
This is what I have done:
Installed DC 3.2.3 and have it set to the Battery Saver Profile
Have maximum Brightness Set to 25%
Changed the preferred network type GSM Auto (PRL) to CDMA Auto (PRL)
Installed Juice Defender
Installed the OverclockWidget and set it so that when the screen is off the processor runs at 245 mhz.
Turned haptic feedback off
Turned Off Auto-Sync
Manage my running applications with Advanced Task Manager
Even with all these changes I'm lucky to get 10 hours of battery. Far below the 16-20 hours that other users claim to get. I use my phone mainly for texting, send maybe 200 per day. Connect to the marketplace for about 20 minutes in total and and never watch youtube videos or surf the web. I spend around 20 minutes a day on the phone at most.
I don't understand why my battery life is so bad. Any tips? Maybe something I did wrong?
Click to expand...
Click to collapse
Perform the HTC suggested battery cycling.
Charge until full, unplug, recharge, unplug, recharge, turn off, recharge, turn on, recharge for a few times.

No comment on the battery life as I have no problems but why did you want this phone in the first place if you only text and don't use the internet? I would own a Blackberry or Nokia E71 if I used my phone in that way.

Minjin said:
No comment on the battery life as I have no problems but why did you want this phone in the first place if you only text and don't use the internet? I would own a Blackberry or Nokia E71 if I used my phone in that way.
Click to expand...
Click to collapse
I expected someone to say that, I used the internet heavily for the first few days and saw the horrible battery life so I started limiting how much I went on and this is how much battery I'm getting now. I do use apps sometimes though
jerryparid said:
Perform the HTC suggested battery cycling.
Charge until full, unplug, recharge, unplug, recharge, turn off, recharge, turn on, recharge for a few times.
Click to expand...
Click to collapse
I tried that, it worked on the first day but then battery went back to normal the day afterwards

Try running dcpowertop via ADB to see if something is causing a lot of wakes and preventing your phone from sleeping. Also try running Systempanel monitoring to see what is using up the CPU time and draining the battery.
Also, this does nothing unless you are running a custom kernel (You didn't mention if you were, so just sayin'):
Installed the OverclockWidget and set it so that when the screen is off the processor runs at 245 mhz.
Click to expand...
Click to collapse
But, even so, you should be well above 10hrs battery life with the other changes you made.

rockethot said:
I expected someone to say that, I used the internet heavily for the first few days and saw the horrible battery life so I started limiting how much I went on and this is how much battery I'm getting now. I do use apps sometimes though
I tried that, it worked on the first day but then battery went back to normal the day afterwards
Click to expand...
Click to collapse
Bad luck? Could try replacing battery and getting a 1750.

DanBergundy said:
Bad luck? Could try replacing battery and getting a 1750.
Click to expand...
Click to collapse
He's better off with this deal really, many members have purchased them (including myself) and they perform near as well, or just as well as the OEM battery - but you get 2 of them, AND a charger:
http://forum.xda-developers.com/showthread.php?t=715739
Most batteries above 1500mAh do not even perform close to what they say they should. Check out batteryboss.org for details.

Philosuffer said:
Try running dcpowertop via ADB to see if something is causing a lot of wakes and preventing your phone from sleeping. Also try running Systempanel monitoring to see what is using up the CPU time and draining the battery.
Also, this does nothing unless you are running a custom kernel (You didn't mention if you were, so just sayin'):
But, even so, you should be well above 10hrs battery life with the other changes you made.
Click to expand...
Click to collapse
I'll give dcpowertop a try.
I just uninstalled overclockwidget and installed SetCPU instead, the new version has the perflock disabler which should allow me to underclock.

If you are in a sketchy service area, your battery will drain fast.

How much do u use your phone? That's right there the key when other people say ILL GET 16-20 HOURS OF BATTERY LIFE. Yes cause they don use it as much as i do, maybe u use.ur phone hardcore too, texting mms back and forward like no joke. Lots of them. I do over 600 just the morning. So my battery die around 2 then i use my hero battery that i have as back up. Its BS when other ones say that they get crazy amount of battery. Yes it can be but cause they don't use the phone as much, my buddie has a iphone 4 and we tested it against the evo and yes he's better but not crazy better like when i was on 50% left he was on 62-65 % my phone died first he was on 10% left. ...
Sent from my PC36100 using Tapatalk

Ok, so SetCPU does actually work and I have successfully downclocked my phone.

If you send 200 texts per day and do little else, as smart phone is not for you. Get a more basic phone that would give you 3-4 days of heavy usage.
Sent from my PC36100 using XDA App

That's very strange especially with how little you use it now to try to get more battery life.
Only other thing I can't think of that's not on your list is disabling Google Talk auto sign-in. Not that I think that will make up the difference you are seeing, but it's something else to try. You seem to be doing everything right, maybe try a clean ROM install?

redditor01 said:
If you send 200 texts per day and do little else, as smart phone is not for you. Get a more basic phone that would give you 3-4 days of heavy usage.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I started limiting myself to try to squeeze as much battery life as I could.

rockethot said:
So as many other users I've been having lots of problems with battery life. I've done so many things in an effort to try to improve battery life but it doesn't seem to improve as much as it has for other people
This is what I have done:
Installed DC 3.2.3 and have it set to the Battery Saver Profile
Have maximum Brightness Set to 25%
Changed the preferred network type GSM Auto (PRL) to CDMA Auto (PRL)
Installed Juice Defender
Installed the OverclockWidget and set it so that when the screen is off the processor runs at 245 mhz.
Turned haptic feedback off
Turned Off Auto-Sync
Manage my running applications with Advanced Task Manager
Even with all these changes I'm lucky to get 10 hours of battery. Far below the 16-20 hours that other users claim to get. I use my phone mainly for texting, send maybe 200 per day. Connect to the marketplace for about 20 minutes in total and and never watch youtube videos or surf the web. I spend around 20 minutes a day on the phone at most.
I don't understand why my battery life is so bad. Any tips? Maybe something I did wrong?
Click to expand...
Click to collapse
Im running "bakedsnacks" latest version, try that. Ive been having insane battery life. It already has the undervolting kernel in it. Give it a try, u have nothing to lose. But you have to remember that the Evo is a beast .

What is your dcpowertop
Sent from my PC36100 using XDA App

Follow the Battery Recalibration instructions in the cyanogenmod wiki.
Doing this, I was at 73% after 26 hours unplugged. Yes, I was using the phone: 20 Text messages, about 20 minutes of pocket empires, 20 minutes of another game, WiFi enabled for most of those hours, and I even ran the "Relax and Sleep" app for half an hour when I went to bed.
DC 3.2.3 with the Balanced profile.

brownmc77 said:
Im running "bakedsnacks" latest version, try that. Ive been having insane battery life. It already has the undervolting kernel in it. Give it a try, u have nothing to lose. But you have to remember that the Evo is a beast .
Click to expand...
Click to collapse
I'll give baked snack a try

You don't need to turn off all those features to get better battery life.
If you really have trouble, simply downclock the cpu to something like 460 Mhz and you battery life will double.
Then have someone make an undervolted kernel for you, and your battery life will triple.

When you say managing your apps with ATM? Are you using it to kill your processes? You probably don't need to manually or even schedule task killing with the lowmemkiller in DC.
One thing you didn't mention is what your signal strength in the area is. My 3g reception is utter trash in my office, so I have an extra cable to keep it charged. Overall, my phone drops about 1% while idle and I don't have any task management or cpu throttling apps going.

[Q] Tips to extend battery life? Anyone?

Hey guys,
Just got my Epic yesterday.. coming from the G1 with lots of experience loading and tweaking ROMs and dealing with same/similar battery issues.
After unpacking the Epic I used it and let it drain down to zero before recharging it; after a full recharge, I loaded up the 7 screens with widgets and ran a live wallpaper (fish). I didn't really use the phone much at all and the phone went from 100% battery down to zero in the span of only four hours!!! Geeze, you've got to be kidding me - four hours battery life?? WTF????!!
Back to the drawing board: I rooted it and ran SetCPU with some power saving profiles. Removed the live wallpaper and went to stock wallpaper. Set display power off at 30 seconds. Note that 4G remains off since there's no 4G in my area..
Couple of questions:
1. Is there any way to toggle 2G/3G like there was on my old G1? I know that was a power saver.
2. I didn't stop to read all the documentation yet (typical male, I know) but is there any way to wake this thing up from sleep mode besides pressing the power button? I can see that power button breaking for as much use as it's getting from me constantly having to wake this thing up!
3. My brightness setting is set to auto - since the display is usually the biggest drain on these things, is there a recommended manual brightness setting (percentage) that seems to work well for you and saves on battery power?
I'm waiting for the Seideo Extended Battery (just like many of you) and am wondering if I should keep the Epic since I'm on the Sprint 30-day Easy Return program.
Appreciate hearing from everyone!
Chris R.

I don't have 4G where I am. But, I have a all black wallpaper(uses less power) and unrooted. I easily get about 12-18hr out of my phone wit normal use(text, talk, and surfing the net with skyfire). Only thing that really kills my battery are games(Robo Defense can take over 30min to play one game).

Thanks for the reply - situation NOT improving
Thanks for the reply.. unfortunately, the situation is not improving...
I tried setting a Sleep Profile using SetCPU that would under-clock the CPU (using the stock kernel) once the screen dimmed and the phone went into Sleep Mode. Unfortunately, as mentioned in another thread here, the result was that the phone froze and required a battery-pull to reset.
I'm really starting to lose my enthusiasm for this device; as beautiful a display and as responsive a CPU/GPU, all of that doesn't mean much if you don't have good power management built into the firmware. At 6PM this evening I pulled it off the charger at 67% charged, it's now 8:35 PM, only 2.5 hours later and I'm down to 22%. I'm in a decent coverage area and get 2-4 bars of 3G strength so I don't think it's an issue of the radio being the culprit; in-fact if you check the battery stats it reports that that lovely Display is accountable for 78% of the battery usage! So I guess we're paying a hefty price for these 4-inch AMOLED displays!
I read somewhere else that the most recent update (DI07) has caused the battery performance to decrease; since my unit is brand-new it immediately went and installed DI07 shortly after the first boot-up so I have nothing to compare it to.. can anyone comment on that?
Thanks!
Chris R.

I'm sure custom ROMs will put performance / battery life on the top of the list but until then, I use JuiceDefender beta and have seen pretty good results with it. It shuts off data whenever the screen is off and since my screen is off a good amount (only use my phone if I need to check email, call, and / or text, which is rare when I'm at work). Other than that, yes, use black wallpaper, lower brightness to the min. in the OS and browser, and don't leave apps that constantly use 3G open (things like ebuddy, pandora, etc.). 3G really destroys battery life so minimal use of 3G data would maximize battery life. Maybe the devs can figure out a way to get at least one full day of battery life on this phone. I'm hoping that is the case.
As to your post, yes, DI07 has resulted in poorer battery life, for whatever reason. I was definitely getting a few hours more with the older firmware. I would not lose hope yet. As disappointed as you are (and all of us are, I can assure you of that), the devs are really starting to push out nice ROMs already, and in a few weeks to a month, I bet we will see some solid battery life. Hell, even 2.2 should yield much better results. Patience

Thanks for the tip!
nimaim said:
I'm sure custom ROMs will put performance / battery life on the top of the list but until then, I use JuiceDefender beta and have seen pretty good results with it. It shuts off data whenever the screen is off and since my screen is off a good amount (only use my phone if I need to check email, call, and / or text, which is rare when I'm at work).
Click to expand...
Click to collapse
Thanks for the reply! Also thanks for the tip regarding JuiceDefender! What a great app! will give it some more time and report results back here.
Thanks again!
Chris R.

nimaim said:
I'm sure custom ROMs will put performance / battery life on the top of the list but until then, I use JuiceDefender beta and have seen pretty good results with it. It shuts off data whenever the screen is off and since my screen is off a good amount (only use my phone if I need to check email, call, and / or text, which is rare when I'm at work). Other than that, yes, use black wallpaper, lower brightness to the min. in the OS and browser, and don't leave apps that constantly use 3G open (things like ebuddy, pandora, etc.). 3G really destroys battery life so minimal use of 3G data would maximize battery life. Maybe the devs can figure out a way to get at least one full day of battery life on this phone. I'm hoping that is the case.
As to your post, yes, DI07 has resulted in poorer battery life, for whatever reason. I was definitely getting a few hours more with the older firmware. I would not lose hope yet. As disappointed as you are (and all of us are, I can assure you of that), the devs are really starting to push out nice ROMs already, and in a few weeks to a month, I bet we will see some solid battery life. Hell, even 2.2 should yield much better results. Patience
Click to expand...
Click to collapse
DI07 has hurt my battery life substantially. In fact, my battery drains very close to twice as fast now with the update. I don't understand what they did. My phone certainly doesn't seem any faster, my display is dimmer, and battery life sucks. I'm going to have to go back to DG27 so I can use my phone all day. With DI07 it always dies on me by mid afternoon. With DG27 it was still running by 11pm at night without even a battery low warning.

juice defender ftw
also, use advanced task killer with low security settings to kill all the background processes. Set the autokill to when the screen turns off. This keeps everything pretty well managed and helps with battery as well

JUICE DEFENDER BATTERY!!! Saved my phone from flying out of my car window at 10 in the morning........

here is a link to a thread I started.
Sharing my juice defender settings. I also use ultimate juice.
http://forum.ppcgeeks.com/sprint-epic-4g/133933-sharing-my-juice-defender-settings.html
I can get a day and a half (or slightly longer) out of a single charge.
YMMV.
Hope this helps

Advanced task killer + Juice Defender. You could also get some custom roms and Kernals that would help boost it.
But that's your best hope. Keep off 4g, wifi, bluetooth, etc.

compujock said:
DI07 has hurt my battery life substantially. In fact, my battery drains very close to twice as fast now with the update. I don't understand what they did. My phone certainly doesn't seem any faster, my display is dimmer, and battery life sucks. I'm going to have to go back to DG27 so I can use my phone all day. With DI07 it always dies on me by mid afternoon. With DG27 it was still running by 11pm at night without even a battery low warning.
Click to expand...
Click to collapse
Look here- try stopping the DRM service and see if that helps your battery life with D107

jimmyz said:
Look here- try stopping the DRM service and see if that helps your battery life with D107
Click to expand...
Click to collapse
Ah, the evils of DRM can strike in unexpected ways...
I wasn't really having a battery problem but I just turned DRM off, so we'll see if battery life improves anyway.
I had a whole long post here that got wiped with the xda disk array failure, so I'll just sum that up here too:
1) Use wi-fi if possible - it REALLY helps
2) 4G does not seem to use the battery any more than 3G, although hunting for 4G does and 4G coverage is not as extensive as 3G even in 4G areas. So it's still best to leave it off if you're moving around.
3) Dim your screen and use a dark, static background. AMOLED screens don't work like LCD's; they use more power the more pixels are lit and the brighter they are.
4) GPS also kills your battery - leave that off unless you need it too.
I think that's it. I get about 18 hours on DI07 (even before trying the DRM thing; maybe I can get to a full day!).
One thing I'm noticing after checking DRM - I've got Google Maps' LocationService popping up about every 10 seconds, and I can't seem to shut it off permanently. (I went into Lattitude and turned that off, not sure what else to do.) That can't be helping... anyone know how to get rid of that?

I'm using juice defender and a constant email junkie, but lite use on other aspects of the phone. It goes off charger at 5:30 am and I'm about 67% at around 3p. It then goes in the car charger on the way home. This has much better battery life than the Pre or the Hero as with both I had to turn off email to get it to last throughout the day.
I don't expect these phones to last days, but I expect any phone that I get to last the business day. I've always been one to charge overnight.

Wifi drains battery more from what I've read.
Sent from my SPH-D700 using XDA App

I've heard the opposite that wifi (as long as it's connected) uses up less battery than 3g/4g. Any of them will suck the battery dry if they're searching, so make sure you have a connection to one of them.

Hi everyone, new to the forum. Just started checking it out when the Epic was released and this is my first post. Anyways, here's my question. My phone's been off the charger for 7 hours and 17 minutes and it is now down to 15%.
Display 79%
Cell standby 7%
Android System 4%
Phone idle 2%
Swype 2%
I've gone into the display settings and I thought I had set everything up optimally. The brightness is always very low. The screen timeout is 15 seconds and the keyboard matches that. I don't know what else I can do to cripple the phone to get the battery to last longer.
I have had wifi on, 4g off, bluetooth off, gps off. Really all I have done this afternoon while watching NFL games is check my yahoo fantasy score, play 2 games of WordFeud, and check twitter and facebook. I purchased Juice Defender a week ago and it has been running all day.
Any suggestions for how I can reduce the drain from the display? My background is a black and white picture of a friend of mine, which I thought would help.
Don't get me wrong, I love this phone. But the battery life I've seen is just terrible. I'd love to buy the extended battery from Seidio whenever its available, at least that would make it last longer even if the settings aren't tweaked.

Do you have juice defender installed?

Yep. Its installed and running now.
Sent from my SPH-D700 using XDA App

bagelicious said:
Hi everyone, new to the forum. Just started checking it out when the Epic was released and this is my first post. Anyways, here's my question. My phone's been off the charger for 7 hours and 17 minutes and it is now down to 15%.
Display 79%
Cell standby 7%
Android System 4%
Phone idle 2%
Swype 2%
I've gone into the display settings and I thought I had set everything up optimally. The brightness is always very low. The screen timeout is 15 seconds and the keyboard matches that. I don't know what else I can do to cripple the phone to get the battery to last longer.
Click to expand...
Click to collapse
There are only two reasons for your display to be using that much battery:
a) it's too bright, or
b) you're using it a lot.
If you're using the phone a lot, your battery's going to run out pretty quick and there's no way around that. If you're using it a "normal" amount, which to me means maybe an hour *total* per day of having the display on, then the other culprit is going to be your brightness. (Some would argue that's less than a normal amount, but think about it... you get a new phone, you're going to play with it for a week or two until you've seen all the cool stuff. But at some point you're going to start putting it away most of the time and just using it when someone calls you, you get a message/email or maybe to play a game or two while waiting for the train.)
Set your brightness *all* the way down, just as a test for a couple days. Make sure all the "power saving" features of the display are turned *off* (auto brightness, and whatever that "picture detection" feature's called, I can't remember). You just want the display as dim as possible all the time, just to see what happens. See what the battery usage says after a day or two of this.
My bet is that you'll see a drop, and then as you get into a more normal usage pattern it'll drop further still. You can raise the brightness a couple ticks then as you learn how to stretch your battery out.
Personally, my display is rarely over 15% or so of my usage. Today it's 29%, but it's a Sunday and I don't have anything better to do but play around on my phone.
btw, it's still the first day I've tried this but that DRM thing might be working. It's almost 9PM and I'm still on like 80% battery, and like I said I have been using the phone off and on throughout the day.

That has helped tremendously. I installed it pretty much when I got the phone and I'm able to last the whole work day with 67% left. (10 hour day)

SyndicateROM Frozen (EB13) - Battery Life Thread

Hey guys,
Just created this thread so we could all have our battery life info in once place and keep the dev thread from getting cluttered.
Please post the following info:
1. Standard or Fully Loaded version
2. Total hours unplugged and percentage
3. Details (percentage and time) for each service
4. And any pertinent details such as apps used (juice defender), or extended batterys
Also, please don't forget to calibrate, airplane bug fix, and kill that drm.
Ex. (will edit with final time)
1. Loaded
2. Total - 8h50m @66%
3.
Display - 55m 78%
Cell standby - 8h50m 9%
Wifi - 6h40m 7%
Phone idle - 7h54m 4%
Voice - 1m 3%
4. Juice defender, setcpu @ 100/1000
Ideally we want to wait for a full drain to post stats but this is just an example. Thx guys looking forward to seeing what you all are getting.

Just installed it will get back to you in a couple of days after recalibrating my battery.
Btw, i hear Juice defender does more harm than good...

bighuta said:
Just installed it will get back to you in a couple of days after recalibrating my battery.
Btw, i hear Juice defender does more harm than good...
Click to expand...
Click to collapse
Hm I'll have to test with it on and off. I use it because I get spotty service in my house and don't want it searching for signal all the time.

My explanation for for seeming disparity in battery results: http://forum.xda-developers.com/showpost.php?p=11853400&postcount=1229

mcdavid said:
My explanation for for seeming disparity in battery results: http://forum.xda-developers.com/showpost.php?p=11853400&postcount=1229
Click to expand...
Click to collapse
Interesting. I think you are right, we are essentialy minimizing out idle drain to a certain extent. However, even activily using my phone it drans slower than stock with this rom. My next run ill try and use it all day to see what I get.
Sent from my SPH-D700 using XDA App

adrift02 said:
Interesting. I think you are right, we are essentialy minimizing out idle drain to a certain extent. However, even activily using my phone it drans slower than stock with this rom. My next run ill try and use it all day to see what I get.
I dont get 30 hours with heavy useage. I what to know what people think heavy usage is
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
Sent from my SPH-D700 using Tapatalk

Battery drain
Hello everyone, noob here. I can't post in the development forum on this but it pertains to the battery and charge to a degree. Maybe someone here can help me in some sort of way.
I rooted and flashed the SyndicateROM Frozen yesterday, used it all day and never a hiccup. This thing is lightning fast and props to the dev's but here is the only issue I found. This morning after waking up I noticed the phone was stuck on the ACS android startup icon. I plugged in to charge last night and it's like it froze the phone when it reached full charge. Anyone else experience this?
Thanks for any help that I receive.

heroforme said:
I rooted and flashed the SyndicateROM Frozen yesterday, used it all day and never a hiccup. This thing is lightning fast and props to the dev's but here is the only issue I found. This morning after waking up I noticed the phone was stuck on the ACS android startup icon. I plugged in to charge last night and it's like it froze the phone when it reached full charge. Anyone else experience this?
Click to expand...
Click to collapse
I think I read in the dev thread that it's a known problem with the kernel? Or maybe it was the rom... or CWM? anyways the dev's know about it. Just don't charge your phone when it's off.
Battery for me seems to be a lot better than stock, but I'm always charging here and there... today I'll let it run without charging for 4-5 hours and I'll report back. Using a lot of setCPU profiles.

heroforme said:
Hello everyone, noob here. I can't post in the development forum on this but it pertains to the battery and charge to a degree. Maybe someone here can help me in some sort of way.
I rooted and flashed the SyndicateROM Frozen yesterday, used it all day and never a hiccup. This thing is lightning fast and props to the dev's but here is the only issue I found. This morning after waking up I noticed the phone was stuck on the ACS android startup icon. I plugged in to charge last night and it's like it froze the phone when it reached full charge. Anyone else experience this?
Thanks for any help that I receive.
Click to expand...
Click to collapse
Are you charging it with the power OFF? Lots of people were posting issues of freezing when charging with the battery off --- and I think the probs are related to CWM -- not the ROM. Only charge while the phone is on -- and you should not see problems.

I put on to charge with the power on last night because I had set the alarm to wake me up and it never did so that is when I noticed it. I don't think I've ever charged it with the power off, even when it was stock.
Maybe the dev's will come up with a fix sometime in the future. As for now, I'm happy as hell 'cause this ROM is great.

heroforme said:
I put on to charge with the power on last night because I had set the alarm to wake me up and it never did so that is when I noticed it. I don't think I've ever charged it with the power off, even when it was stock.
Maybe the dev's will come up with a fix sometime in the future. As for now, I'm happy as hell 'cause this ROM is great.
Click to expand...
Click to collapse
Did this just happen once? If it doesn't happen over and over, I wouldn't consider it a bug. I have only heard of issues like you describe with the power off.

I'm looking at 12 hours on ACS Frozen on average. I haven't even gotten close to the rumored 30 hours with "heavy use" I think my use has been moderate. My battery use log only only lists display 98% and cell standby 2%. This confuses me. I do more than sit there staring at my homescreen.
Sent from my SPH-D700 using XDA Premium App

rygran87 said:
I'm looking at 12 hours on ACS Frozen on average. I haven't even gotten close to the rumored 30 hours with "heavy use" I think my use has been moderate. My battery use log only only lists display 98% and cell standby 2%. This confuses me. I do more than sit there staring at my homescreen.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
How you use your phone makes a difference and while 30h is possible, I don't see it happening with heavy use unless that is little display use. Below is my most recent "heavy use" run. Basically tried to use the phone all day, xda app, browsing, mainly wifi, 0% screen brightness.
1. Loaded
2. 8h7m @5%
3.
Display - 5h33m 95% <- serious display use which kills the phone quick
Wifi - 4h56m 2%
Cell standby - 8h7m 2%
Voice - 4m30s 2%
4. Setcpu @100/1000, juicedefender, 0% brightness
Pretty good considering the insane display usage. With normal use I get over 20h so that just shows how fast it kills your battery. Going to do an "extreme" run next to include heavy cpu use (play emulators all day haha).

adrift02 said:
How you use your phone makes a difference and while 30h is possible, I don't see it happening with heavy use unless that is little display use. Below is my most recent "heavy use" run. Basically tried to use the phone all day, xda app, browsing, mainly wifi, 0% screen brightness.
1. Loaded
2. 8h7m @5%
3.
Display - 5h33m 95% <- serious display use which kills the phone quick
Wifi - 4h56m 2%
Cell standby - 8h7m 2%
Voice - 4m30s 2%
4. Setcpu @100/1000, juicedefender, 0% brightness
Pretty good considering the insane display usage. With normal use I get over 20h so that just shows how fast it kills your battery. Going to do an "extreme" run next to include heavy cpu use (play emulators all day haha).
Click to expand...
Click to collapse
You did that with a standard battery? I haven't seen anyone post more than 4 hours of display "time on". That's impressive. Maybe I should try 0% brightness. I have mine at 25%. Are you on "Conservative" on SetCPU?

rygran87 said:
I'm looking at 12 hours on ACS Frozen on average. I haven't even gotten close to the rumored 30 hours with "heavy use" I think my use has been moderate. My battery use log only only lists display 98% and cell standby 2%. This confuses me. I do more than sit there staring at my homescreen.
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
The 98% means that 98% of your battery use is coming from the screen. Click on where is says 98% and look at see what the use details are (the "time on"). Generally, most people are getting less than 4 hours of display time on with a single charge. The explanation is that some people stretch 4 hours of display time over 30 hours of use. In other words, the people who are getting 30 hours of use only have their screen on 10 - 15% of the time (or less).

mcdavid said:
You did that with a standard battery? I haven't seen anyone post more than 4 hours of display "time on". That's impressive. Maybe I should try 0% brightness. I have mine at 25%. Are you on "Conservative" on SetCPU?
Click to expand...
Click to collapse
Yes, using the standard battery. Setcpu is on conservative. I always use 0% as it looks great (kick it up tp 25-50% outside). I think I was able to get that long of display use due to minimizing cpu usage and other services. All I did is browse in dolphin and use xda app. And, that was pretty much all on wifi. Only change was the hour I was at the dog park on 3g and I recorded a 5 min video.
I bet my gaming session tomorrow will kick it down to ~4 hours

With phone calls, texting, and music player, I average between 16-18hrs. If I start to web browse or watch videos then about 8-12hrs. Very impressed with this ROM to say the least.

1. Standard
2. 31 @ 5%
3. don't have that it was yesterday
4. standard battery, auto brightness, overclocked to 1.2, wifi on when I was at home and 3g at work.
I calibrated the day after froyo dropped. I didn't do the airplane thing and I thought drm was not in this rom. So in other words I didn't do any fancy stuff.
I will note today I tried 1ghz (which is undervolted) with 4G on all day (I have a repeter on my roof at work) and after 14.5 hours I am at 30% with about the same concistancy of usage as yesterday.
Edit: I only have 1 gmail syncing right now. We will see if I get these magical numbers when I put my other 2 gmail accounts and my 3 actice sync exchange accounts on Monday.
Sent from my SPH-D700 using XDA App

I'm getting mixed battery life. The first day on the rom/kernel I dropped down to 79% in 9 hours, with medium use (no web browsing). I was getting 1% drop every 1-2hrs, and thought it was amazing. Today I tried to be really conservative and didn't use it at all and it dropped 4-5% every hour WHILE IDLE.
Anyone else experiencing the same problem? It seems to happen after a reboot to be honest.
NOTE: If I disable data network mode, battery life is amazing,

I'm not sure about my battery life. I charge mine differently than the average person though. I charge it at work and leave it in my desk, because I use it a lot during my lunch break or whenever I get any downtime. When I get home it's usually at about 70%, and it remains unplugged until the next day. I used to have to charge it at home and at work.

Help, my battery life is horrible.

Help, my battery life is horrible, even for an X10.
I lose ten percent in 3 hours, mostly on idle. And cell standby is always on top. Any idea why this is so.
Sent from my rooted, JITed, X10, using my fingers, my eyes, one of my brain's four cores (Take that tegra 2), and Oh, the XDA app.

dante2086 said:
Help, my battery life is horrible, even for an X10.
I lose ten percent in 3 hours, mostly on idle. And cell standby is always on top. Any idea why this is so.
Sent from my rooted, JITed, X10, using my fingers, my eyes, one of my brain's four cores (Take that tegra 2), and Oh, the XDA app.
Click to expand...
Click to collapse
Same here..............................first 10% dies quick, seems to settle sa little after thay

ddi you check any background app that could be running for updates (timescape, weather...etc), these apps tend to cosume battery for updates even phone is in idle
if you are not sure which one it is try turning off the traffic and see if the battery still drains crazy, if it behaves normal I would say one or more of your apps running in background is the cause

no even i got same problem since i installed wolf's 3.5 and later my battery drains very fast !!! was using the wolf;s v3 before battery was very gud ... even all apps which m running now used to run before !!

Try wipe battery stats then fully charged it and calibrate it.
Use battery calibration, you can get it from market.
Sent from my X10i using XDA App

Okay, I'll try these. And Yes, my battery lasts a lot longer when I disable data. But could it have something to do with the baseband.
Sent from my rooted, JITed, X10, using my fingers, my eyes, one of my brain's four cores (Take that tegra 2), and Oh, the XDA app.

Did all the above stuff before now battery is going more fast...like lost 51% in just less than three hours ...ya I jus sent 10 msges 1 hour online radio and display at 75% brightness ...
What next then ????
Sent from my X10i using XDA App

It could take a few days for your battery to settle down after you have done a callibration.
Can you get cpu spy from the market and see if you phone is going into deep sleep, there could be some app that is using up your battery

the first 10% of the battery dies very fast and it's some kind of "trickle charge" to top off the battery. it settles down to a steady depletion after 89%.
3G eats all your battery, also check if your CPU maintains high clock speed all or not.

Yeah. As other have stated, download CPU Spy and leave you phone in standby (and not charging) for a while. Then check CPU Spy and make sure the phone is going into "Deep Sleep", as well as running at lower than 998 MHz. You may have to refresh within CPU Spy (via the menu button).
Also, if you're not connected to a wifi network, turn off WiFi. Otherwise the phone will search for a network regularly, wasting battery power.

my personal suggestions was, try to put brightness below around 50 or 60 percents.. its good enough even under bright places.. or you can try to raise the refresh frequency for those application you using such as beautiful widget / facebook update interval.. and try turn off those gps/wifi or any data traffic that running if you are not using it.. lastly also put the brightness to 0, if you are idle from using the phone or just to listen on songs, use earphone if possible.. thats what i do, its probably messy but its work quite well

Okay, THANKS. I'll try all these and report back.
Once again, Thanks y'all.

Ok it depends on alot of stuff
1.your baseband
2. Flash 2.1 wiped everything in xrecovery then flash any desired rom.
3.turn off backgroundd and auto sync
4.gps turn it off when not using it
5. Data turn it off also
6. Put brightness to 50%
Sent from my X10i using XDA Premium App

My cell standby is always high, usually around 30% of my battery use. I don't remember it being like that when I was running FreeX10 2.2 or even SE 2.1 for that matter.

acerulz said:
no even i got same problem since i installed wolf's 3.5 and later my battery drains very fast !!! was using the wolf;s v3 before battery was very gud ... even all apps which m running now used to run before !!
Click to expand...
Click to collapse
I actually had a dramatic improved battery life from v006 to V3.5. Then even longer battery life on V3.6. Before, my phone runs out of battery after one, two hours of gaming. Now I can play for four hours.
Eight hours of standby without wifi, data still took around eight percent. mine doesn't have the 400 hours sony claims to have either.
Sent from my X10i using XDA App

My battery life dropped after installing FPS UNCAP 54. Dramatically.
It's stock, rooted ROM.
It's counting downwards like a counter on a gas station!
From 100% to 1% in cca. 1 hour.

I find that GPS is the biggest drainer on battery so if you use that a lot that might be the problem. Also make it so your phone is only using 2G when you aren't actively using your phone (aka idling in your pocket) you might have slower synching but it isn't like you are using your phone during this time anyway.

dazbaz996 said:
It could take a few days for your battery to settle down after you have done a callibration.
Can you get cpu spy from the market and see if you phone is going into deep sleep, there could be some app that is using up your battery
Click to expand...
Click to collapse
if you are sure it is not rom related. get Green Power Free from the market. i suffered the same issue. now i can get up to 2 full days without charge...

rkonert said:
My cell standby is always high, usually around 30% of my battery use. I don't remember it being like that when I was running FreeX10 2.2 or even SE 2.1 for that matter.
Click to expand...
Click to collapse
Actually, that's good, it'd mean there is no-brainer task eating your juice in the background
Mostly there're three main thing to check out, some of these were mentioned. If you read it and feel it's a little bit too hard, jump to the end.
(1) Deep Sleep, check it through CPU Spy or SetCPU, if the phone idle, it should go to deep sleep
(2) App usage, since 2.3 arrive, it's much harder to check. Try "SystemPanel (Lite)"
In most case, it'd be these 2.
(3) Another one is to check the memory usage vs. minfree, the most essential one is "AutoKiller Memory Optimizer".... probably your custom ROM might have optimized these value already. But sometime the problem is that your normal usage has overloaded the minfree level, (too much background app, too much widget, too much sync) which cause the OS to shutdown some task while it'd be re-opened a few second afterward, this cause a stupid battery drainer loop.
Use AutoKiller Memory Optimizer, it'll show u 6 slots with amount of free memory, the trick is the free memory shouldn't be close to the forth slot.
HOWEVER, if this sound too complicated for you, I suggest first try to remove the widget one-by-one, uninstall some background apps to see if it gets better.
You could blame ROM, but the problem is not the ROM itself, the devs just try to optimize their ROMs for most users, some essential ROMs provide stability without many tweaks, meaning that you could just put 20 widgets without much troubles. An optimized ROM is a trade-off between multi-task and performance. That's why it's not work on some people.

Maybe you have an app keeping your phone awake, hence x10's gb runs at 998 mhz all the time, that could drain the s**t out of your battery, download setcpu from market, i lose 1% every 1 or 2 hours, im on stock 2.3 pre rooted by doomlord
Sent from my x10a"i"(running 2.3.3 root)

[TIPS] Juice Defender, Why its good and bad

Reading through threads I see lots of people saying JD and similar apps are good and lots saying they are bad. This is quite confusing for someone who just wants to get good battery life. In my experience I have gone from finding it good to finding it bad. I will try and explain why this occurs so that people are able to decide if it will be worthwhile for them.
First install Battery Monitor Widget and find out what sort of drain your battery is experiencing every hour.
With a stock rooted G2 with data connection on continually (no wifi) I was getting around 80-150 mA which explains why it would not last longer that about 16 hours. Most of this drain seems to occur from data connections. After installing JD or something similar the drain can be reduced to around 50 mA. Which is great, suddenly you get the claimed 1.5 to 2x battery life. JD seems great.
But after you install a good ROM and custom kernal, remove or freeze all the apps that keep using your data connection unnecessarily and install Better Battery stats you observe that JD stops the phone going into a proper deep sleep. If you dump it the drain on the phone drops to very low numbers usually under 20mA sometimes 5mA or even 2mA. This means you use around 1-3% of the battery life of the phone overnight with no changes. Now your phone can last days between charges. Note this is with Data or Wifi connections turned on and Sync active always.
Summary:
On a badly set up phone JD improves battery life (for the lazy)
On a well set up phone JD worsens battery life (takes some time)
Note: I got the best results using Speedmods kernal but I have no reason to think that other kernals could not get similarly low battery drains.

Thanks for sharing your observations. I have juice defender and have had similar findings. The wake locks jd causes play into the aos bug of the phone which is why it can make things worse on a well set up phone (the extra drain from the wake locks outweighs the savings from turning the data connection off when it's not in use). If not for the aos bug it would probably be good in all cases. I had noticed this in my testing and am glad to see I'm not the only one.
Sent from my GT-I9100 using xda premium

Thanks for sharing your observations.
If I had seen your post much earlier than I wouldn't have to buy JD. Anyway, I have gone through the hard way, and learnt how to keep my phone organized and minimized rouge apps issue. JD is pretty much useless now.
IMHO, I think Battery monitor widget pro seems to be a much better buy

Thanx for this helpful info!
BTW, kernel not kernal

I do not have a lot of widgets and sync as little as possible. Mail sync is only on demand (when I have time to read it), and Weather is every 6 hour (disabled in night time).
So my battery live is good ½% standby and with normal use it can easily last a full day (no gaming, just Internet, Talk, SMS).
I decided to try JD in order to save even more juice, but JD ended up using more battery than it saved me!
So I can confirm that JD is good for the "lazy user" and bad if your aware of your sync. and how your apps behave.

What do u mean by dumping? You said if you dump it and the drain goea away? Im a bit confused
Sent from my brilliant Viper skinned Apple iPad 2 using the superior Tapatalk Premium

best way to save battery overnight are, disable all internet connection including Wifi, switch to 2G, kill all task then have a sweet dream till next sun rises

KurskS said:
What do u mean by dumping? You said if you dump it and the drain goea away? Im a bit confused
Click to expand...
Click to collapse
By 'dump' I just meant uninstall JD. If you uninstall JD your phone will be able to deep sleep properly provided it is set up well and you actually save more battery.

foxcheng said:
best way to save battery overnight are, disable all internet connection including Wifi, switch to 2G, kill all task then have a sweet dream till next sun rises
Click to expand...
Click to collapse
Sure you can do that, but it's not necessary. I leave wifi and 3g on and still have drain of 5mA all night. I wake up and have lost almost no battery. The same applies for when the phone is idle during the day.

razar77 said:
Sure you can do that, but it's not necessary. I leave wifi and 3g on and still have drain of 5mA all night. I wake up and have lost almost no battery. The same applies for when the phone is idle during the day.
Click to expand...
Click to collapse
What kernel , Rom and apps (that sync) are you using?
Sent from my GT-I9100 using Tapatalk