ok so here's the deal.. my phone has been off the charger for about 4 hours and im already down to 40% left. I live in a 4g area but it is spotty in many areas, including my workplace. I have gps (for weather updates and nav, when i need it) and wifi on at all times. i am running the EP4P modems on GummyCharged Froyo ROM 2.0. I have the screen brightness turned all the way down. No overclocking.
Kernel: 2.6.32.9 [email protected] #30
I have tried several different methods to calibrate the battery but it doesnt seem to help. When i'm at home and using wifi the battery life is pretty good. so is it my modem? the ROM? my kernel? Can anyone help me get the most out of my phone? I've tried various modems but have stuck with GC since I loaded it back in sept.
If you are in a spotty area, that can happen. Searching for signal and 4G/3G switching can drain the battery very fast. I would try putting the phone in cdma mode while you are at work or any other spotty area.
Turn off wifi and gps if you are not currently using them, wifi scans for networks regularly and you may have apps/widgets that are using the gps/ network location services while you are idle
also, my battery stats say that display is using up 45% (as of now) of my battery life with 23 mins of usage time. I have the wifi turned on for my convenience, but it doesn't scan for networks as i've turned that function off. I will try the cdma switch, but I have also tried that before and I don't think it makes too much of a difference.
leaveone said:
also, my battery stats say that display is using up 45% (as of now) of my battery life with 23 mins of usage time. I have the wifi turned on for my convenience, but it doesn't scan for networks as i've turned that function off. I will try the cdma switch, but I have also tried that before and I don't think it makes too much of a difference.
Click to expand...
Click to collapse
The battery usage metrics aren't useful until you've been up for several hours. And having the screen using a high percentage is ideal -- it means that the rest of the system is throttling like it is supposed to.
How long have you been on GummyCharged? A few weeks into having that on my phone happily, battery life took a nose dive similar to what you are experiencing. I flashed back to stock and battery life is much better. Waiting for official GB before trying another ROM.
bluevolume said:
The battery usage metrics aren't useful until you've been up for several hours. And having the screen using a high percentage is ideal -- it means that the rest of the system is throttling like it is supposed to.
Click to expand...
Click to collapse
i see your point but im now at 5 hours uptime with 23% battery left.. light/medium usage. display still says 46% battery use with 25 mins of usage time. that seems like incredibly too much battery drainage.
also, when i put the phone into cdma mode do i select the home or automatic option, and what is the difference?
schnablebg said:
How long have you been on GummyCharged? A few weeks into having that on my phone happily, battery life took a nose dive similar to what you are experiencing. I flashed back to stock and battery life is much better. Waiting for official GB before trying another ROM.
Click to expand...
Click to collapse
i flashed GC onto my phone in mid september. since then i've tried calibrating the battery several times. a totally futile exercise it seems. What setup are you running now? 2.2.1 with EE4 modem? Rooted?
The only thing that has solved my battery problems is juice defender. Sitting idle for eight plus hours at night I only drop about 3-5%. Of choose it still drains just as quickly while using the phone but it will help if you're in a spotty area because data is turned off if your screen is off.
Sent from my SCH-I510 using XDA App
I've never had good luck using a modem from one rom with a DIFFERENT rom/kernel. Always docreased my performance.
I find it odd that Battery is the only issue you are having.
Sent from my SCH-I510 using XDA App
I have similar issues. After rooting and flashing Humble on my phone, my battery life sucked, much much worse than stock.
I then put the standard 2.3.6 on it and it still sucks. Full 4G all day, barely use it.
It's sat on my desk at work all day today. Sent a few texts. I've installed betterybatterystats and nothing is taking up a large portion of partial wakelocks.
Really don't understand how people are getting such good numbers...
I find that by far and away the best way to increase battery life is to lock my phone in 3G unless I am downloading something & want the 4G speed.
I have a home screen widget that turns 4G on/off & only turn on 4G occasionally. I do not leave WiFi on although I leave GPS on at all times & find that uses almost no battery life whatever.
~John
jmilacek said:
I have similar issues. After rooting and flashing Humble on my phone, my battery life sucked, much much worse than stock.
I then put the standard 2.3.6 on it and it still sucks. Full 4G all day, barely use it.
It's sat on my desk at work all day today. Sent a few texts. I've installed betterybatterystats and nothing is taking up a large portion of partial wakelocks.
Really don't understand how people are getting such good numbers...
Click to expand...
Click to collapse
I thought my battery was bad then i looked at that graph. I don't even get it... The screen is mostly off and the signal is green most of the time.
It may be some rogue app on your phone. Backup your apps and do a factory reset. If your battery life significantly improves, restore your apps one by one and find the culprit.
Sent from my Gummy Charged GBE 2.1 using XDA App
JihadSquad said:
I thought my battery was bad then i looked at that graph. I don't even get it... The screen is mostly off and the signal is green most of the time.
It may be some rogue app on your phone. Backup your apps and do a factory reset. If your battery life significantly improves, restore your apps one by one and find the culprit.
Sent from my Gummy Charged GBE 2.1 using XDA App
Click to expand...
Click to collapse
I see that you're running GC GBE 2.1, did they happen to fix the hotboot issue that im experiencing in the older release?
leaveone said:
i flashed GC onto my phone in mid september. since then i've tried calibrating the battery several times. a totally futile exercise it seems. What setup are you running now? 2.2.1 with EE4 modem? Rooted?
Click to expand...
Click to collapse
Just stock EE4, unrooted, will do OTA as soon as I get the notification. Battery life is not that good, I can get 14 or so hours of use leaving it on 3G most of the time, but on Gummy I would get 50+% drain just having it sit overnight. Now leaving it sit overnight doesn't kill it.
leaveone said:
I see that you're running GC GBE 2.1, did they happen to fix the hotboot issue that im experiencing in the older release?
Click to expand...
Click to collapse
Hotboots are there but only like one every 2 days. The status bar glitch is still there. I use gc because i can't stand the default lock screen.
Sent from my Gummy Charged GBE 2.1 using XDA App
JihadSquad said:
Hotboots are there but only like one every 2 days. The status bar glitch is still there. I use gc because i can't stand the default lock screen.
Sent from my Gummy Charged GBE 2.1 using XDA App
Click to expand...
Click to collapse
hmmm.. and what glitch is that?
leaveone said:
hmmm.. and what glitch is that?
Click to expand...
Click to collapse
If you pull out the charger at 100%, it force closes (rest of phone is usable) and comes back inn a few seconds.
Sent from my Gummy Charged GBE 2.1 using XDA App
leaveone said:
ok so here's the deal.. my phone has been off the charger for about 4 hours and im already down to 40% left. I live in a 4g area but it is spotty in many areas, including my workplace. I have gps (for weather updates and nav, when i need it) and wifi on at all times. i am running the EP4P modems on GummyCharged Froyo ROM 2.0. I have the screen brightness turned all the way down. No overclocking.
Kernel: 2.6.32.9 [email protected] #30
I have tried several different methods to calibrate the battery but it doesnt seem to help. When i'm at home and using wifi the battery life is pretty good. so is it my modem? the ROM? my kernel? Can anyone help me get the most out of my phone? I've tried various modems but have stuck with GC since I loaded it back in sept.
Click to expand...
Click to collapse
you prob shouldnt be using that ROM..its kinda outdated...just flash the new ALL IN ONE ODIN of EP4D...my battery life is pretty sick...i left it unplugged all night and saw a tiny drop..my phone was connected via wifi tho..if my phone is in 4g the battery loses pretty quickly or if my screen is on ultra bright..
I'm running the stock, rooted, manually-debloated EP4P and I've been getting downright stellar battery life.
My kids watched an hour of Netflix this morning while getting ready, and now (almost 10 hours later), I'm still at 63%.
But! (and here's the kicker) - I leave WiFi on all the time (I'm contemplating buying Woofi to save even more battery when I'm not at home or work) and have my WiFi sleep policy set to "Never".
This is (one of) the key(s). It doesn't matter how strong your 3G or 4G signal is, WiFi will always save you battery. 3G is less battery intensive per-time, but much more battery intensive per-byte. 4G is less battery intensive per-byte, but much more battery intensive per-time. WiFi is much more battery intensive per-time, but wildly less battery intensive per-byte.
In other words, for the same download, you'll use the least battery on WiFi (even with a slower than LTE connection), 4g in the middle, and 3G the most.
AlexDeGruven said:
I'm running the stock, rooted, manually-debloated EP4P and I've been getting downright stellar battery life.
My kids watched an hour of Netflix this morning while getting ready, and now (almost 10 hours later), I'm still at 63%.
But! (and here's the kicker) - I leave WiFi on all the time (I'm contemplating buying Woofi to save even more battery when I'm not at home or work) and have my WiFi sleep policy set to "Never".
This is (one of) the key(s). It doesn't matter how strong your 3G or 4G signal is, WiFi will always save you battery. 3G is less battery intensive per-time, but much more battery intensive per-byte. 4G is less battery intensive per-byte, but much more battery intensive per-time. WiFi is much more battery intensive per-time, but wildly less battery intensive per-byte.
In other words, for the same download, you'll use the least battery on WiFi (even with a slower than LTE connection), 4g in the middle, and 3G the most.
Click to expand...
Click to collapse
is there an odin file for what you have or did you do the manually debloating after rooting?
Related
So, I recently cancelled AT&T but I wanted to make a couple of last remarks on a battery issue, so as to (hopefully) better inform the devs. Up front, I will say that the reception at my house is terrible (hence my cancellation). As such, I expect somewhat poor battery performance. I have run nearly every version of Cognition, tried the AOSP project, and most recently run Perception. After using these, I was left with the impression that the battery performance in all of these has been disappointing.
Having received my new phone and with my old service not yet deactivated completely, I decided to try a more formal test. I used the following test protocols in order to ensure a fair and accurate comparison was conducted:
1) The phone was positioned for the worst possible reception in my house. It was only moved to change ROMs and was returned to the approximate location it was previously in.
2) Each ROM was flashed at 100% battery, with SIM and SD Cards removed.
3) A battery recalibration was performed after each flash, as detailed in the Cognition thread (Charge to full, turn off, charge to full, turn on, use for 2 minutes, charge to full, delete battery stats). Following this I did one more complete discharge and recharge to ensure the statistics would reconfigure with the calibrated battery.
4) GPS and Bluetooth were turned off; WiFi remained on and connected through all test runs.
I loaded Cognition version 2.3b6 and then Perception build 3, both of which performed approximately the same. Leaving my phone on standby and with only very light use (0 answered calls and no internet surfing or messaging), I could get no more than 15 hours of battery power before it died. Following this, I restored my phone to the stock JH7 update and, as of now, my phone is at 54% after 2d 19h 25m of use.
I know many people have been flamed for daring to suggest that the ROM has something to do with the battery draining abnormally, but I did this test as objectively as I could so that the community of developers can use the information to improve on this issue. In my opinion, this test suggests that something in the custom ROMs is causing an excessive battery drain. While this may not be happening on everyone's phones, it is most definitely happening on two of my Captivates. Hope this helps and good luck! I am off to Droid X Land! Suppose I'll use my working GPS to get there! (Sorry, couldn't resist... too soon?)
Edited for grammar and clarity
Poor signal is the biggest battery drain. Especially in 3g areas. I have had phones on VZW and ATT (different times and locations) where my battery would not last 8 hours.
Another test to show it is not the ROM or OS is to put the phone in airplane mode and observe almost 0% battery drain overnight.
But since these custom ROMs are built off beta releases, I am not surprised by your results.
Sent from my MB520 using XDA App
I noticed the same thing a while ago and am just hoping there is some issues with the fact that these roms are being developed on leaked builds without the source code.
The key thing to notice in the attached screen shot is the near constant 1-3% cpu activity when the phone is not being used. On JH7 I could leave my phone on over night and only lose ~3% battery. Currently on Perception build 4 I lose ~20-25% overnight. On Cognition 2.3b3 I lost about the same.
I get about 16 hours on my captivate with light to moderate use on the froyo leak.
on Perception and Cog (latest builds) I was getting about 9-10 hours with very light use.
I need another battery
skippyg said:
I get about 16 hours on my captivate with light to moderate use on the froyo leak.
on Perception and Cog (latest builds) I was getting about 9-10 hours with very light use.
I need another battery
Click to expand...
Click to collapse
I doubt the battery is your problem. As my test suggests, I am pretty confident that if you were to restore to stock, you would find your battery risen from the dead.
I can vouch for the OP about battery life. Battery life on JH7 is WAAAAYY better than any custom 2.2 ROM. I am running stock JH7 with Atimns v1.10 Voodoo kernel. Beats the pants off of the Cognition 2.3b6 ROM I was using battery-wise. In my experience, all of the Froyo based ROMs have battery issues. :-(
I just searched up a little bit more and found that the sensor is using a lot of juice because of a bug in the picture gallery app included in all froyo roms/leaks. I checked my sensor use and sure enough it was at 6 hours non stop. uninstalled using root explorer installed the Gallery3D.apk found on this site and now the use is at 2 seconds. I hope this was the cause. Also, is the android system supposed to be using so much of the sensor? My phone has been on for 11 minutes (reboot) and the battery history in *#*#4696#*#* says its been on for exactly the same amount of time...
sorry for the thread jack!
skippyg said:
I just searched up a little bit more and found that the sensor is using a lot of juice because of a bug in the picture gallery app included in all froyo roms/leaks. I checked my sensor use and sure enough it was at 6 hours non stop. uninstalled using root explorer installed the Gallery3D.apk found on this site and now the use is at 2 seconds. I hope this was the cause. Also, is the android system supposed to be using so much of the sensor? My phone has been on for 11 minutes (reboot) and the battery history in *#*#4696#*#* says its been on for exactly the same amount of time...
sorry for the thread jack!
Click to expand...
Click to collapse
The issue with the gallery using the sensor has been known for some time. If you our the rom dev did not change out the apk, you should.
Well I changed it and my battery has been going great! Heavy use with 5% decrease per hour since I replaced it.
Sent from my SAMSUNG-SGH-I897 using XDA App
To be fair...the custom ROMs I have tried each had WiFi set to always on. The stock ROMS from had is set to only be on when the screen was on. Depending on the availability of a WiFi AP, this can make a huge difference. Looking for a WiFi AP to connect to is costly.
jswclw said:
To be fair...the custom ROMs I have tried each had WiFi set to always on. The stock ROMS from had is set to only be on when the screen was on. Depending on the availability of a WiFi AP, this can make a huge difference. Looking for a WiFi AP to connect to is costly.
Click to expand...
Click to collapse
In my case, this was not the difference for me. I always had my WiFi always on, even with the screen off. I turned it off manually if I know I am going to be some where WiFi is not available. The battery drain is definitely somewhere else....but these are leaked Froyo ROMs for a reason.
emuneee said:
In my case, this was not the difference for me. I always had my WiFi always on, even with the screen off. I turned it off manually if I know I am going to be some where WiFi is not available. The battery drain is definitely somewhere else....but these are leaked Froyo ROMs for a reason.
Click to expand...
Click to collapse
do you know how to switch a rom from always on to only being on when the screen is on? i'm running a custom rom and i'm not seeing this setting anywhere aside from completely toggling wifi
domin8 said:
do you know how to switch a rom from always on to only being on when the screen is on? i'm running a custom rom and i'm not seeing this setting anywhere aside from completely toggling wifi
Click to expand...
Click to collapse
Wifi settings> menu > advanced
Sent from my Captivate
curti.nogg said:
Wifi settings> menu > advanced
Sent from my Captivate
Click to expand...
Click to collapse
whoa, cant believe i never saw that menu before. so setting it to 'when screen is off' will give better battery life?
domin8 said:
whoa, cant believe i never saw that menu before. so setting it to 'when screen is off' will give better battery life?
Click to expand...
Click to collapse
It depends. If there is a lot of data transfers going on and WiFi is off with the screen, these transfers will take place over 3G, which in more cases is not as power efficient as WiFi, all else being equal.
I'd say, WiFi always on is better, in my experience anyway. Mileage may vary.
emuneee said:
It depends. If there is a lot of data transfers going on and WiFi is off with the screen, these transfers will take place over 3G, which in more cases is not as power efficient as WiFi, all else being equal.
I'd say, WiFi always on is better, in my experience anyway. Mileage may vary.
Click to expand...
Click to collapse
For me personally I get terrible battery life when wifi is on. Everyone on here seems to say that leaving wifi on saves battery but this has never been the case with any device I've ever owned . And I'm talking about when I'm sitting home in an area with good wifi reception too.
I can't figure my battery out at all. On the weekends if I stay home and keep wifi on my battery will be on for 20 hours and still have 65% left. Once I leave home and I'm using 3G I can only get about 5 hours. I've lost 20% or more per hour without even touching my phone.
Another weird thing is under battery usage and "cell standby", it always shows time without signal at 50%. Never more and never less, always 50% exactly. Any ideas?
tietherope said:
Another weird thing is under battery usage and "cell standby", it always shows time without signal at 50%. Never more and never less, always 50% exactly. Any ideas?
Click to expand...
Click to collapse
Wish I had the answer for this too. Mine says the same exact thing. Always 50% yet I always have signal where I am. I'm hoping it's some sort of miscalculation and not a major bug where network connections are being dropped constantly and not being shown.
I get three+ days with my phone...
Sent using smoke signals.
Man, I thought I was in my own boat. Same exact symptoms across Cognition, Perception, Axura, you name it. Something weird though is that the first day is always great on battery, then after a night's charge it goes back to the 12 hr max per day (moderate usage). On stock it definitely lasts a lot longer. can't wait for an official froyo release... especially now that I have to use Good Messaging, another huge battery hog.
Ok, I have been flashing for a few months trying to optimize my phone. My last rom was serendipity 6.2, with sp 59 and jl2. I restored to stock (bc I wanted to try something else and hadn't done that in a few weeks) my battery life on serendipity was atrocious.. 6 hours with medium usage. (hardly any calls or messages, looking things up or reading xda briefly) . I spent today on stock, after about 20 hours of light usage I am at 60% left. Now I did flash with a full battery serendipity, wiped battery stats and cleared cache and after several charge cycles and a few days battery life was still awful. I was about to get a new battery. Now I don't mean to single out serendipity, I've had bad battery life on paragon, dilli, and a few others (this time it just got unbearably bad), but why should battery life be so bad on custom roms? Am I alone on this? I hesitate to flash again bc I'm loving having a phone that won't die if I touch it, but I miss the functionality of the device with a custom 2.2.1 on it. Advice or opinions please.
Sent from my SAMSUNG-SGH-I897 using XDA App
I'm having the same problem. Everybody keeps saying they've got excellent battery life and what not with custom roms but mine doesn't seem so good. Wifi is off, I've wiped battery stats, I've used the rom for several days letting everything get situated before I begin thinking about if its good battery life or not. Maybe I'm just expecting too much or I watch my battery a lil bit too much, idk it just seems pretty bad. If I stay on the internet for 20 minutes I've already dropped about 3%
Sent from my SAMSUNG-SGH-I897 using XDA App
The normal Batt live on this phone with normal use is between 12 to 16 hours
I'm thinking part of it may be psychological and part may be usage.
Psychological in the sense that I have an expectation of an improvement, practical in that with my stock rom I haven't reinstalled certain apps like xda and pulse where I spend a lot of time reading and thus using the screen.
That being said I was still experiencing drains of 8% or more per hour when the phone was idle, wifi and gps off.
There is a way to check the cpu's time in each state, but I can't remember where the file is. If someone can, please let me know. I'm curious if under the custom rom my phone wasn't properly scaling down.
I'll probably flash something new tomorrow morning unless I see something shiny and new in the dev forum.
Sent from my SAMSUNG-SGH-I897 using XDA App
So 6 hours seems a bit low then? Could it just be a cumulative effect of flashing rom on top of rom with restoring to stock?
Sent from my SAMSUNG-SGH-I897 using XDA App
eccezarathustra said:
So 6 hours seems a bit low then? Could it just be a cumulative effect of flashing rom on top of rom with restoring to stock?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Yeah 6 hrs does seem a bit low. There are many things that can contribute to it. If you are bouncing between H and 3g on a custom rom will drain it like crazy, I had to disable H and stick with 3g and that helped. could also look at OS monitor to find what is running in the background.
Ok, I did notice that recently I was jumping between h and 3g. I was experimenting with some of the new modems. Should I try finding a better modem for my location?
Sent from my SAMSUNG-SGH-I897 using XDA App
eccezarathustra said:
Ok, I did notice that recently I was jumping between h and 3g. I was experimenting with some of the new modems. Should I try finding a better modem for my location?
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I would try others, as well as disable H in the hidden menus, and see how it fairs
@ zelendel.... so by H i assume you mean data... i see alot of back and forth when data is on. i know when data is off i'm still using wcdma from the gsm status, but it doesn't show the 3g icon.
i need my data because i'm from the states but living in australia and alot of my comunications are thru email/facebook.
when i look at battery usage i see rarely more than 5% from cell....usually 90 something from display ( i fiddle with it alot).
can't expect too much cause it's a powerhouse with a tiny battery........
for me the big Q at present is... can we top up the charge regularly or is it always best to let a full cycle run? if i knew it was fine to keep it topped i'd stay 50%+ most of the time i think................
It is not great to keep it topped off. The lithium battery will wear out faster and lose charging capacity over time. this process is sped up the more time the battery spends at a high charge
Sent from my SAMSUNG-SGH-I897 using XDA App
Visit the Samsung web site and read the battery specs for the Captivate. The stock battery is only rated for 5 hours and 50 minutes of active phone use (which means the display is active). In sleep mode (display and other features of the phone are shutdown) the battery is rated for up to 300 hours (12.5 days).
I have NEVER seen a stock Captivate last for over 3 days in sleep mode. As for active phone use (display is active) my experience with several of the custom ROMS (Cognition, Paragon, Andromeda, and now my favorite, Continuum) is that the battery life is either on par with the stock ROM, or exceeds it. The kernels on some of these custom ROMs are more efficient than that of the stock ROM due to the many tweaks and cleaning up of bloated apps and code by the developer.
I can't bring myself to keep a stock ROM now that I have used some excellent custom ROMs like those I name above.
As for flashing custom ROMs and seeing fast battery drain goes... I have had that experience with those I listed, but usually I was able to resolve the issue by ensuring my battery was at 100% (meaning showing that amount both on and off) and reflashing, or finding the cause of the high battery usage and going from there (e.g. I have had to reflash modems). Another thing I do, mainly out of habit from compiling code and deploying it in dev and test environments, is to make sure that I am working from a known good baseline ROM before flashing a custom ROM. In this case I always return to the stock ROM you can flash through Odin One Click. That way if you have battery problems after flashing a custom ROM you can have a good idea as to what is causing those problems. This is, of course, just a matter of personal preference. Some have repeatedly flashed one custom ROM over another with no issues. YMMV
fractaline said:
@ zelendel.... so by H i assume you mean data... i see alot of back and forth when data is on. i know when data is off i'm still using wcdma from the gsm status, but it doesn't show the 3g icon.
i need my data because i'm from the states but living in australia and alot of my comunications are thru email/facebook.
when i look at battery usage i see rarely more than 5% from cell....usually 90 something from display ( i fiddle with it alot).
can't expect too much cause it's a powerhouse with a tiny battery........
for me the big Q at present is... can we top up the charge regularly or is it always best to let a full cycle run? if i knew it was fine to keep it topped i'd stay 50%+ most of the time i think................
Click to expand...
Click to collapse
No what I mean is disable HSDPA I think is the term lol. Sense you go back and forth I would say to disable that and just use 3g only.
If you don't know the code to get too the menu download sgstools it has the hidden menu keys.
Sorry but where can I find the hidden menus?
Sent from my SAMSUNG-SGH-I897 using XDA App
EDIT: just saw the last post thanks
I am the opposite, I got horrible battery on stock. Could not even make it through my work day without it dying on my way home unless I charged it midday. Now I am running Serendipity 6.2 and unplug at 7:30am and it is now 8:30pm my time and I have 30% remaining....
I have also tried other customs roms with noticeable improvements in battery life over stock but for me Serendipity gives me the best performance and battery.
Sent from my Galaxy S Captivate with Serendipity
try apex5.1 room with tl3 modem comb
i used about 50 phone call, 2 hour websurfing, email sending, checking.
i still have 41% left, 1day 10hour 50 min.
Could I have a faulty battery? I rooted and rommed cuz of my battery life being terrible but It still is bad
Sent from my SAMSUNG-SGH-I897 using XDA App
I had the exact same issue as you. I tried Darky's 9.3 first, then Serendipity 6.2, then Cognition 4.2.1. Each had major battery drain, meaning 6-8 hours with moderate use, and even without any usage it would drain 25% over 3 hours.
Use One-Click to flash back to stock JF6, then immediate do a Master Clear from the One-Click program after it has finished booting. Obviously move everything to an external SD or the computer prior to all of this, and make sure the external SD and SIM are out when flashing.
My battery has lasted for 14 hours today, and I'm only down to 54%. This is with about 1hr 20min screen on, ~30min voice calls, and always connected via 3G/H with background sync on, weather widget, and moderate web browsing.
Current setup: Serendipity 6.2, Speedmod K13C, JK4 Modem
Trying again
I couldnt keep myself away from custom roms, how i missed tethering, the custom theming, non marketplace apps and so much more...
Im trying Dilli's 7.1.1, bump charging at the moment...
Last night I drained my battery to 5% when i finally fell asleep... 6 hours later it was at 4%. Finally it drained and would not power on at all. Not even the backlights. Plugged it in for an hour and thought to take the sim card out so i would have a phone for the hours it would take to charge. When i plugged it back in the phone jumped from approximately 10% to 40% charged...
Oh well.
I have also been bouncing around flashing diff roms like crazy. I have to say though, I am using Continuum v4 with Hardcores speedmod Kernel K13D. I have been doing pretty good on this combo. Lasts for most the day with normal use.
So, I just flashed this ROM yesterday.
Full charge over night took phone off charger around 7ish this morning. Did a quick 30 minute run/walk workout w/the Cardio Trainer recording (tracking w/GPS), all while listening to the FM radio. I have had two phone calls totaling about about 7.5 minutes. Maybe 35 text messages in and out. I'm in a strong 4G area, I do not have my phone set to automatically get email. I just turned off the facebook hourly update, just noticed I hadn't done that yet ..... my phone is already barking at me that I need to plug it in.
With the exception of my run and listening to the radio this morning I really haven't done much .... I downloaded a couple of apps and tweaked them, but seriously 3.5 hours of battery before it's telling me less than 10%.
Any suggestions?
I did not clear the battery stats, in my past experiences that really didn't do anything to help (but that was w/the Eris).
I'd love to have GREAT battery life that everybody talks about. Anybody using this ROM have stupendous battery time? Not sure what has sucked the life out of this.
Thanks
I'd say it's the GPS that killed you.
same thing for me on bamf gb 2.1. i was at 20% after 5 hours of use
migueltherocker said:
I'd say it's the GPS that killed you.
Click to expand...
Click to collapse
IDK about that, I've gone out for the same 30 minute walk/run w/the battery on yellow (on stock rooted) and the radio going and it hasn't killed it. I think maybe it's part of it, but IDK it's all of it.
I've put the phone on strict 3G, going to totally KILL it tonite and turn it off while charging.
Have you tried recalibrating your battery since installing Bamf 1.8 stripped? Maybe it's not a problem with the ROM, but with the battery calibration.
Sometime at night shutdown your phone and then hold volume down and power to boot up HTC's nice bright white bootloader. Leave it alone until it dies (the phone cannot die properly while running Android, since Android will shutdown the phone when it thinks the battery is low, rather than when the battery IS ACTUALLY low). Plug in the power cord after it dies, but leave the phone turned off. It should take a few minutes for the orange light to turn on because it's so dead. Leave it alone until the green light is showing in the morning. Then start it up. This will get the proper 0% and 100% points for your battery stats. Also check what apps are killing your battery. I was having a problem with Google Maps for a while until I cleared data on it.
I have a similar problem. I will take it off the charger and after a few minutes it will be down around 97%. No big deal. I will set it down and walk away for at most 15-20 minutes and come back and it will be on like 80%.
After that though the battery life stabilizes and I get 12+ hours with moderate use
Running AOSP CM7. I have had my phone off charge since sometime around 6 am ET this morning and at 50% now at 11 pm. This has kept me kept me from getting an extended battery. You should try it.
Sent from my ThunderBolt using XDA Premium App
lu270bro said:
Running AOSP CM7. I have had my phone off charge since sometime around 6 am ET this morning and at 50% now at 11 pm. This has kept me kept me from getting an extended battery. You should try it.
Sent from my ThunderBolt using XDA Premium App
Click to expand...
Click to collapse
How is the stability on this? Is it good enough for a daily ROM? (not that it's not "good", I know their work rocks) - I don't know if I want a "testing" phase ROM. Hope that makes sense?
chimpsnest said:
How is the stability on this? Is it good enough for a daily ROM? (not that it's not "good", I know their work rocks) - I don't know if I want a "testing" phase ROM. Hope that makes sense?
Click to expand...
Click to collapse
3g to 4g handoff is the main complaint I hear, but I'm not in 4g area. Have driven through a 4g area and it seemed fine to me. Put it this way, this has been my daily driver for over a month now. And GPS gets near instant lock btw. I don't want to hijack the thread so I will just say that I NEED my phone to work and if too many bugs were present I wouldn't be running it.
Sent from my ThunderBolt using XDA Premium App
lu270bro said:
Running AOSP CM7. I have had my phone off charge since sometime around 6 am ET this morning and at 50% now at 11 pm. This has kept me kept me from getting an extended battery. You should try it.
Sent from my ThunderBolt using XDA Premium App
Click to expand...
Click to collapse
Your display is only at 5% of total usage... You hardly used your phone. Of course its going to last for 16 hours when it just sits there
athorax said:
Your display is only at 5% of total usage... You hardly used your phone. Of course its going to last for 16 hours when it just sits there
Click to expand...
Click to collapse
I get awesome battery life on BAMF Remix 1.8, 20-24 hrs with normal to excessive usage. I get about half that with BAMF GingerRemix. You can see I actually use my phone, lol.
johnkc1975 said:
I get awesome battery life on BAMF Remix 1.8, 20-24 hrs with normal to excessive usage. I get about half that with BAMF GingerRemix. You can see I actually use my phone, lol.
Click to expand...
Click to collapse
tell me your secrets
i just flashed 1.8 remix i get like 9-10hrs of battery with little to medium use
as ive said i must of lucked out with a solid battery as ive never had the horrid battery life most claim on the net. even with 4g on all the time i get well over 10-12hrs with medium/heavy usage.
a suggestion for a solid kernel is the 3.3.7 lean kernel, don't overclock too high either. i think that's why alot of people have the crap battery life and random reboots.
if you live in an area that doesn't get good 4g coverage id switch to 3g only mode if i were you.
lu270bro said:
3g to 4g handoff is the main complaint I hear, but I'm not in 4g area. Have driven through a 4g area and it seemed fine to me. Put it this way, this has been my daily driver for over a month now. And GPS gets near instant lock btw. I don't want to hijack the thread so I will just say that I NEED my phone to work and if too many bugs were present I wouldn't be running it.
Sent from my ThunderBolt using XDA Premium App
Click to expand...
Click to collapse
appreciate the info, don't think you're hijacking at all
I've totally turned off my 4G (even though my home area is FULL 4G) and my battery life seems to have improved. I still have to do the recalibration thing, I keep forgetting.
How is the lean kernel with 1.8 stripped? Any compatibility issues?
kpfury said:
How is the lean kernel with 1.8 stripped? Any compatibility issues?
Click to expand...
Click to collapse
ditto I would like to know this as well.
- is this different than what is included in the bamf toolkit?
im using bamf 1.6 and i get 20-24 hours batt life
brightness always on 25%, unless outside then i bump it up and then turn it down when im done. lower than 25% at night when the lights are out and im just watching tv
background data and auto sync both off
moblie data off
use wifi whenever possible
switch to 3g only when youre not in a 4g area and you need to use the internet
chimpsnest said:
With the exception of my run and listening to the radio this morning I really haven't done much .... I downloaded a couple of apps and tweaked them, but seriously 3.5 hours of battery before it's telling me less than 10%.
Any suggestions?
Click to expand...
Click to collapse
I get incredible good battery life with the Das BAMF 1.8.6 NTE so I would expect the same out of Stripped. I would consider another kernel, I am very happy with utkanos http://forum.xda-developers.com/showthread.php?t=1025199 Are you on MR2's radio or MR2.5? 2.5 seems to do much better with GPS.
chimpsnest said:
So, I just flashed this ROM yesterday.
Full charge over night took phone off charger around 7ish this morning. Did a quick 30 minute run/walk workout w/the Cardio Trainer recording (tracking w/GPS), all while listening to the FM radio. I have had two phone calls totaling about about 7.5 minutes. Maybe 35 text messages in and out. I'm in a strong 4G area, I do not have my phone set to automatically get email. I just turned off the facebook hourly update, just noticed I hadn't done that yet ..... my phone is already barking at me that I need to plug it in.
With the exception of my run and listening to the radio this morning I really haven't done much .... I downloaded a couple of apps and tweaked them, but seriously 3.5 hours of battery before it's telling me less than 10%.
Any suggestions?
I did not clear the battery stats, in my past experiences that really didn't do anything to help (but that was w/the Eris).
I'd love to have GREAT battery life that everybody talks about. Anybody using this ROM have stupendous battery time? Not sure what has sucked the life out of this.
Thanks
Click to expand...
Click to collapse
What is using up your battery because if it is the Cell Standby or Phone idle I have a fix for you. I had always had great battery life until last week when it started draining as you describe in your post. I tried everything to get back to where I was but was not successful. I ended up pulling out the 4G card and reinserting it. I was instructed to do this by a Verizon tech. I though he was wasting my time but it fixed my battery issue and I am getting great battery life on BAMF 2.1 and also BAMF 1.86
mzimand said:
What is using up your battery because if it is the Cell Standby or Phone idle I have a fix for you. I had always had great battery life until last week when it started draining as you describe in your post. I tried everything to get back to where I was but was not successful. I ended up pulling out the 4G card and reinserting it. I was instructed to do this by a Verizon tech. I though he was wasting my time but it fixed my battery issue and I am getting great battery life on BAMF 2.1 and also BAMF 1.86
Click to expand...
Click to collapse
That's interesting, I wonder what that would do and why it would work? These phones do like to keep us on our toes, eh?
I've made the switch to CM as of yesterday so I'll be playing around w/that for a while.
I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
f3liC said:
I really hate creating these threads because it makes me look likr a complete noob but I can' figire this out for the life of me. I bought the charge thinking I could use it for a day and change but I have yet to experience this awesome battery life. Even when I got my first day, the battery life was horrible and even after its first charge, it wasnt any better. Do I just have a bad battery or something?
Heres what I remember doing:
-Flash gummycharge day 2 of owning phone (1.8.5) novoodoo kernal
-An issue came up where I couldnt press my power button without the phone freezing
-so at this point I reverted back to a stock ee2 rom
-i then flashed gummycharged once again (same as above)
-after flashing, I charged my battey up, shutdown, wait for 100%, repeat 3x to wipe battery stats/calibrate my battery
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
Download humble 1.25 and your battery woes will be no more my son....
Will take you suggestion and try it out tonight. I dont mean to derail my own thread but is it possible that when I flashed back to stock ee2, it caused my signal to decrease even though I put gummycharged over it later? Ever since I had to reflash because of the power button issue, I noticed a decrease in signal strength (from mid 80s to high 90s). Sorry for all the questions!
danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Hi,
I saw your Humble ROM and was considering installing it to try to improve battery life as we'll.
What about your ROM conserves battery over the stock rom?
Now that p3droid released 2.3.4 I will certainly have to try it, do you plan to make a version of Humble using this new base?
Thanks for your work, I really am loving this new phone!
Ken
(Former DX afficianado)
An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?
f3liC said:
An hour has passed with another 45 minutes of browsing. My battery is down to 40%. Really now?
Click to expand...
Click to collapse
If you are getting that bad of battery life, go to EE4 Debloated . Flash P&J OC Kernel. and Undervolt your phone.
Whay would be causing this kind of battery life though?
f3liC said:
Whay would be causing this kind of battery life though?
Click to expand...
Click to collapse
No telling, depends on how you use your phone and what apps are running.
Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.
f3liC said:
Thats the thing. I haven't been doing anything other than browsing. I only went to class and browsed for maybe 2 hours max. Everything else is 2% ish other than the dolphin hd browser. If I look at the battery stats, the display is the only thing thats depleting the battery really. I'm starting to think its because I have weak coverage in my area.
Click to expand...
Click to collapse
I've had similar battery issues with two different Charge units running each ROM/Kernel (except GB). I also live in a weak coverage area where I average 1 to 2 bars, sometimes dropping to 0 and i'm convinced this has to be it. I had written this idea off initially because I previously had ATT and the same weak coverage with them, but nowhere near the same abnormal battery drain...so I guess there must be a difference between the way CDMA and GSM operate in this respect? I'm in a 3G only area and keep the phone locked to CDMA/Auto also.
danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Coming from the fascinate I honestly think the battery life is better. Although I turned lte off since we don't have any coverage for it yet. My mind will probably change when we get it. Running stock ee4 rooted with voodoo kernel. My father is running the same thing and also came from the fascinate, he completely agrees.
Sent from my SCH-I510 using Tapatalk
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
I had really bad battery life on my phone running the stock rom and gummycharged. With the phone sleeping and only data on, I was losing at least 5% an hour.
I switched to Humble a week ago and my battery life is exceptional. I am ususally looking at 24 hrs with 4g on and longer with it off.
If you do a lot of browsing and keeping your screen on, your battery is going to burn quickly. No matter what ROM you are using. If it's draining a lot of battery in sleep, flash Humble.
danalo1979 said:
Download humble 1.25 and your battery woes will be no more my son....
Click to expand...
Click to collapse
Dude, this isn't the fix. I'll flash Humble 1.25 right now and prove to you that it doesn't fix battery issues. Yes, it's less of a battery hog than the other available ROMs, but flashing Humble 1.25 will not fix your battery gremlin.
I wish Danalo, imnuts and the other gurus would spend more time figuring out this battery gremlin. Charging your battery to 100% then wiping battery stats through CWR doesn't work either. I've tried it countless times.
OP, here's another thread regarding the battery issues many people are experiencing - http://forum.xda-developers.com/showthread.php?t=1145161
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Don't give up so soon. The battery life on the Charge can be amazing and I know from experience. My experience also shows that there are funky battery issues that pop up when flashing various crap. Flashing an Odin bundle has not worked for me, at all. Wiping battery stats has not worked.
I was running GummyCharged 1.5 with the PBJT kernel and voodoo enabled and got 17+ hours of medium-hard use EASILY. Since then, I flashed the original GB leak, Gummy, Humble, Stock... I cannot figure out what the heck is going on, my battery life is still crap.
f3liC said:
So I unplugged my phone at 5:00pm and it is now 7:07pm. In two hours with about an hour of browsing, my phone is at 73%. I have nothing on any of my homescreens just to be sure it wasnt consuming the battery, cdma automatic instead of 4g lte since my area does not support it yet and manual brightness at 15%.
What is it I'm doing wrong?
Click to expand...
Click to collapse
It really sounds like signal issues to me. My Charge handles weak mobile signals better than my Thunderbolt, but any cell phone will really crank up the juice draw looking for a tower if it can't find one. In my north county office, my Thunderbolt will drain 25% per hour if I don't keep it near the window where it can get a better signal.
You need to post a lot more details.
Are you on wifi or mobile data? Are you 3G or 4G area? How strong is your 3G/4G signal?
Have you dug into the battery use screens to see what's up?
Grab Spare Parts from the Market if your ROM doesn't have it and look into it's battery statistics...things like wake-locks will really kill the phone.
brian1972ct said:
I am running 1.25 and have had absolutely no improvement to my battery life (strong 4g area in SoCal).
I've just resigned to the fact that I'll get 6-7 hours (even on an extended battery, same results) and have to charge once or twice a day.
Click to expand...
Click to collapse
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.
If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App
mbh87 said:
Humble isnt going to make a difference, what he should have said was to flash the PBJ OTB kernel. Not sure if he just wants more downloads for Humble or what lol.
Click to expand...
Click to collapse
And no.... im not pimping downloads. Lol
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Sent from my SCH-I510 using XDA Premium App
danalo1979 said:
If all you are concerned with is battery life on a phone then buy an iphone.... sheesh.
Sent from my SCH-I510 using XDA Premium App
Click to expand...
Click to collapse
Then what would we ***** about?
danalo1979 said:
If you calibrate your batt stats and use my rom you will see what alot of people are seeing. Thanks
Click to expand...
Click to collapse
I've done this countless times to no avail. I'm going to flash Humble 1.25 again in a bit, but it definitely didn't fix the battery issue earlier today when I flashed it. Yes I wiped battery stats. Yes the battery was at 100%.
I'm going to try the ridiculous procedure laid out in this thread - http://forum.xda-developers.com/showthread.php?t=1152088
Since I had the phone, battery drain has been ridiculous. Around ten to fifteen percent per hour. After recently switching to humble 1.5 my drain is nearly 30% an hour. I will try to recalibrate soon but should I consider getting another battery? I was listening to mp3s and checking email during that hour and about ten minute of gps. But the drain still feels a bit excessive. What do you think?
Sent from my SCH-I510 using XDA Premium App
What kind of signal do you have? Under battery use, is there anything that's been using a disproportionate amount of battery? What do you keep on as far as services and connections, like GPS, 4G, etc?
My signal is usually fine with 4g a majority of the day. It was struggling a bit today in the underground and I had to turn off and on the data to get a solid connection a few times. I usually keep on the data and gps or bluetooth on depending on the situation. Usually just a combination of those. Data is the only one on all day. Nothing looks unusual under the battery usage except for the display using 82%, but it was like that on stick as well.
Sent from my SCH-I510 using XDA Premium App
What was your brightness set to?
Sent from my gingerbread gummycharged gbe 1.9rc2.3 charge.....bro.
Automatic.
Sent from my SCH-I510 using XDA Premium App
braveally said:
My signal is usually fine with 4g a majority of the day. It was struggling a bit today in the underground and I had to turn off and on the data to get a solid connection a few times. I usually keep on the data and gps or bluetooth on depending on the situation. Usually just a combination of those. Data is the only one on all day. Nothing looks unusual under the battery usage except for the display using 82%, but it was like that on stick as well.
Sent from my SCH-I510 using XDA Premium App
Click to expand...
Click to collapse
Well, 4G and GPS together can use power pretty aggressively. Granted, 30% an hour seems excessive and may be caused by something else.
A couple things you could try - force 3G (you can do this manually or via a downloadable widget I believe) instead of 4G and use location services instead of GPS (unless you just need GPS). I know these aren't as "attractive", but can provide similar services with less power consumption. This will at least let you see how much consumption is due to these more power intensive services.
If you still have issues, you may have a battery problem (or may need to try reflashing a ROM, stock or otherwise).
charlie_c said:
Well, 4G and GPS together can use power pretty aggressively. Granted, 30% an hour seems excessive and may be caused by something else.
A couple things you could try - force 3G (you can do this manually or via a downloadable widget I believe) instead of 4G and use location services instead of GPS (unless you just need GPS). I know these aren't as "attractive", but can provide similar services with less power consumption. This will at least let you see how much consumption is due to these more power intensive services.
If you still have issues, you may have a battery problem (or may need to try reflashing a ROM, stock or otherwise).
Click to expand...
Click to collapse
Yeah, that's a tough swallow just for the sake of battery. I can compromise on the location service, but really want 4g since it is so widely available for me. I will attempt to recalibrate the battery and then possibly reflash if I feel it's still a problem. Is there another rom you recommend that can possibly mitigate this issue. I tried Gummycharged on my phone but it is really buggy (launcher force closes every few minutes) on my device for some reason.
braveally said:
Yeah, that's a tough swallow just for the sake of battery. I can compromise on the location service, but really want 4g since it is so widely available for me. I will attempt to recalibrate the battery and then possibly reflash if I feel it's still a problem. Is there another rom you recommend that can possibly mitigate this issue. I tried Gummycharged on my phone but it is really buggy (launcher force closes every few minutes) on my device for some reason.
Click to expand...
Click to collapse
Depends on if you want a Froyo or a Gingerbread ROM. I was running the Eclipse Froyo ROM with the imoseyon kernel overclocked and undervolted slightly and had excellent stability, performance, and battery life. I just switched to a GummyCharged GBE 1.9RC2.3 but haven't really decided yet if I'll stay.
Probably Froyo
charlie_c said:
Depends on if you want a Froyo or a Gingerbread ROM. I was running the Eclipse Froyo ROM with the imoseyon kernel overclocked and undervolted slightly and had excellent stability, performance, and battery life. I just switched to a GummyCharged GBE 1.9RC2.3 but haven't really decided yet if I'll stay.
Click to expand...
Click to collapse
Thought about it for a while and will be sticking with Froyo for now until Gingerbread has been officially released from Verizon. I'm hoping that will allow for most of the bugs to be reconciled. I read in various post that GB still has some issues. Stability, performance and battery life are my primary concerns.
On a side note:
Don't quite know if I am ready to start overclocking and changing voltages. Is there a recommended thread to get some basic knowledge on working with the voltages and what not. I only have experience overclocking desktops and graphics cards.
Thanks for following through with me on this as well.
braveally said:
Thought about it for a while and will be sticking with Froyo for now until Gingerbread has been officially released from Verizon. I'm hoping that will allow for most of the bugs to be reconciled. I read in various post that GB still has some issues. Stability, performance and battery life are my primary concerns.
Click to expand...
Click to collapse
I was right there with you, but I read that these Gingerbread leaks also allowed you to use Media Hub with HDMI out (which it does), and my credit was about to expire
braveally said:
On a side note:
Don't quite know if I am ready to start overclocking and changing voltages. Is there a recommended thread to get some basic knowledge on working with the voltages and what not. I only have experience overclocking desktops and graphics cards.
Thanks for following through with me on this as well.
Click to expand...
Click to collapse
No problem, I used the clock and voltage settings in this post but only used the Temperature profile. Had no issues. I tried straying from it but started getting crashes so I went back to it. If you're looking for only battery improvements, you could skip the 1300 Mhz OC and just underclock and undervolt. That whole thread is devoted to an OC kernel though so feel free to read through and it may shed more light on it.
Hope that helps.
Awesome. Thanks
Sent from my SCH-I510 using XDA Premium App
Automatic brightness will use more battery than setting it to one brightness and manually adjusting it as needed. Automatic brightness requires activating and polling the light sensor, then increasing/decreasing the brightness. On top of that, I've found that automatic tends to keep the screen brighter than it needs to be for me in most situations.
Good point
imnuts said:
Automatic brightness will use more battery than setting it to one brightness and manually adjusting it as needed. Automatic brightness requires activating and polling the light sensor, then increasing/decreasing the brightness. On top of that, I've found that automatic tends to keep the screen brighter than it needs to be for me in most situations.
Click to expand...
Click to collapse
I think your right. I had a similar issue with auto screen brightness with my old Touch Pro 2. I will try this among the things written earlier to see if it has any impact.
5% drain in last twenty minutes. Just Lte on and no activity but writing this post.
Sent from my SCH-I510 using XDA Premium App
20% drain per hour of screen on time is the norm for Charge. Throw in the typical idle background drain of 4% per hour, and you'll see why 3 hours of screen on time per day is the max you can get.
Now then, the drain due to active screen use is expected and can't be improved. However the idle drain is unusual and *probably* can be fixed by future Samsung firmware. (gingerbread is not fixing it yet). I'm guessing its poor idle radio management, which is why undervolting the core does nothing to help.
If the idle drain can be greatly improved, the Charge could then expect to get 4-5 hours of screen on time per day, and I'd be a happy camper.
braveally said:
5% drain in last twenty minutes. Just Lte on and no activity but writing this post.
Sent from my SCH-I510 using XDA Premium App
Click to expand...
Click to collapse
I'm in the same boat here with Humble 1.51.
4G at 4 bars, -84dBm, surfing the net, 30% back light, no gps, no wifi, 2 gmails syncing -- 20%/hour.
Brightness is at the lowest setting for me, Twitter, Facebook, and Beautiful Widgets syncing hourly, 2 Gmail accounts with push notifications, Google Voice, and possibly a few more background apps. I'm at just over 4 hours being unplugged with 20 min. of screen on time and my battery is at 75% and was charged fully when I unplugged it. I have not had any major use as far as playing a game or major web surfing either.
I have good luck with imoseyon's lean kernel 0.13.3 and gummycharged fe. I had very poor battery life before i tried that combo.
Sent from my SCH-I510 using XDA App
Go back to Stock. Completely wipe everything (including SD Card ... this is optional probably, but it's what I did. Make sure you back up on your computer). Then re-flash your rom. I had this problem after switching initially from Froyo to GB. My battery life is amazing now with the new GC GBE 2.3.
Scrappy1 said:
20% drain per hour of screen on time is the norm for Charge. Throw in the typical idle background drain of 4% per hour, and you'll see why 3 hours of screen on time per day is the max you can get.
Now then, the drain due to active screen use is expected and can't be improved. However the idle drain is unusual and *probably* can be fixed by future Samsung firmware. (gingerbread is not fixing it yet). I'm guessing its poor idle radio management, which is why undervolting the core does nothing to help.
If the idle drain can be greatly improved, the Charge could then expect to get 4-5 hours of screen on time per day, and I'd be a happy camper.
Click to expand...
Click to collapse
I've seen you post this on other threads, and it just proves that different users of the Charge have different experiences. I think a lot of it has to do with the network.
I have had my phone off the charger for 10.5 hours now at home, which varies between a moderate and weak signal. It is still at 81%, which means it has had a 1.8% per hour battery drain. It has been mostly idle, but I've sent a few texts and quickly browsed a website. If it was truly left alone, it would be even less than 1.8% per hour. This clearly debunks your one-size-fits-all claim of 4% idle battery drain.
As for screen on time, I've done 2 hours of screen on time during an 8 hour day and still had ~48% left. Doing the math I could get ~3.85 hours of screen on time in a 15.3 hour day. My battery drains quite evenly with no sudden drops, so this would be a fairly accurate and realistic expectation for me. If I really needed to, I should be able to get ~4.55 hours of screen on time in an 8 hour day. This is based on my high of 1.8% per hour idle drain and 18.8% per hour screen drain. Or, if I did a 10 hour day (like I do quite often), I could do ~4.35 hours of screen on time. Once again, your sweeping generalization of 3 hour max screen on time certainly doesn't apply.
I don't have any special or magical configuration either. I leave 4G on, which sometimes drops to 3G at my house since the signal is weak at times. I leave the GPS and bluetooth on at all times. I have the screen brightness set on automatic. I also have Gmail setup with one push email account and leave auto/backround-sync on at all times.
I run Imnuts' PBJ voodoo kernel with a stock deodexed EE4 system and got rid of some of VZW's bloatware. Mind you, I haven't noticed any significant difference in battery life between the fully stock stock EE4 and the current configuration.