Terrible battery life, tried everything I could think of - Galaxy S II Q&A, Help & Troubleshooting

So first a little background on this phone: my girlfriend had been heavily using it for 2 years. Over time, the battery went bad. She would keep it always on charger when she's at home, so she can have a full battery when she goes to school. At one point, after over 1.5yr, the phone started behaving weird when connected to charger: it would be either discharging while on charger, or charging very slowly, like 5% in 2 hours, during which the phone is on standby, not being used.
I took the phone and flashed a CM11 nightly. Ever since then, the charging problem has been resolved. However, the phone has extremely poor battery life. I'm able to get maximum of 2 hours screen-on time.
- I have the Greenify app, and most of the apps are greenified, including keyboard even.
- I have data off at all times, and am using Tasker to turn it on only when certain apps are running. Turning the screen off or exiting the app disable data.
- Screen brightness is at 50%
- Maximum CPU frequency is lowered to 1000 MHz (min is at 200 MHz)
- CPU governor is ondemand
- I/O scheduler is CFQ
- The phone is running CM11 nightly from 16/02 with it's native kernel.
I have recently bought a battery which is claimed to be an original. I don't know if it is, is there a way to actually check it? The battery life has not improved in regard to the old battery, the one that came with the phone.
I have also tried Gustavo kernel, but for some odd reason the drain was like 1% every 2 minutes when on standby, so I restored the latest backup.
Maybe worth to mention is that I have a yellow-ish rectangle going over my screen. It's not really noticeable, only in apps with white background. The rectangle is located in the middle of the screen, goes from side to side, and takes ~1/3 of the screen vertically. I have no idea what is that, but the screen is okay. It's responsive and the colors are fine.
I have no idea with else I could do to improve my battery life. It's seriously awful.
I'm going to try and calibrate the battery using this app tonight, but I'm really not too optimistic.
Any tips?

Lucenzo7 said:
At one point, after over 1.5yr, the phone started behaving weird when connected to charger: it would be either discharging while on charger, or charging very slowly, like 5% in 2 hours, during which the phone is on standby, not being used.
Click to expand...
Click to collapse
These are common symptoms of a damaged usb port. It was the same with me, until i replaced the usb port. Now my S2 works, battery wise.

Lucenzo7 said:
So first a little background on this phone: my girlfriend had been heavily using it for 2 years. Over time, the battery went bad. She would keep it always on charger when she's at home, so she can have a full battery when she goes to school. At one point, after over 1.5yr, the phone started behaving weird when connected to charger: it would be either discharging while on charger, or charging very slowly, like 5% in 2 hours, during which the phone is on standby, not being used.
I took the phone and flashed a CM11 nightly. Ever since then, the charging problem has been resolved. However, the phone has extremely poor battery life. I'm able to get maximum of 2 hours screen-on time.
- I have the Greenify app, and most of the apps are greenified, including keyboard even.
- I have data off at all times, and am using Tasker to turn it on only when certain apps are running. Turning the screen off or exiting the app disable data.
- Screen brightness is at 50%
- Maximum CPU frequency is lowered to 1000 MHz (min is at 200 MHz)
- CPU governor is ondemand
- I/O scheduler is CFQ
- The phone is running CM11 nightly from 16/02 with it's native kernel.
I have recently bought a battery which is claimed to be an original. I don't know if it is, is there a way to actually check it? The battery life has not improved in regard to the old battery, the one that came with the phone.
I have also tried Gustavo kernel, but for some odd reason the drain was like 1% every 2 minutes when on standby, so I restored the latest backup.
Maybe worth to mention is that I have a yellow-ish rectangle going over my screen. It's not really noticeable, only in apps with white background. The rectangle is located in the middle of the screen, goes from side to side, and takes ~1/3 of the screen vertically. I have no idea what is that, but the screen is okay. It's responsive and the colors are fine.
I have no idea with else I could do to improve my battery life. It's seriously awful.
I'm going to try and calibrate the battery using this app tonight, but I'm really not too optimistic.
Any tips?
Click to expand...
Click to collapse
You should try different Roms like slimsaber 4.4.4 by fusionjack. I know i've said this particular line many times before (to others) but it has now become one of the first things I say. AFAIK, the last few cm11 night lies weren't particularly stable or battery friendly. You should try a custom ROM with a different custom kernel (i have noted that you've flashed gustavo kernel) like apolo kernel 7.2 beta 3 by pedestre or dorimanx 10.44 v008 by cybernetus.

Related

[Q] Custom ROM battery life?

Hi everyone. When I first got my 10.1, it seemed the battery on the first half of a charge lasted forever. I notice now it is dropping faster using the Starburst ROM. Just wondering if this is all in my head, or if this is possible?
I originally switched for the purpose of extended life and faster speeds (less processes).
Thanks for answering anyone,
I'm using the Starburst ROM, and I haven't noticed much if any change in the battery life of the device.
I just saw the guy who made one of the roms in the dev forum say he got 36 hours on his one charge, and that 7 is terrible. I am running the stock kernel and pulling 6-7.5hrs battery with wifi and MINIMUM SCREEN BRIGHTNESS.
Is something wrong?
I am running ADW launcher ex with no animations on.
wy2sl0 said:
I just saw the guy who made one of the roms in the dev forum say he got 36 hours on his one charge, and that 7 is terrible. I am running the stock kernel and pulling 6-7.5hrs battery with wifi and MINIMUM SCREEN BRIGHTNESS.
Is something wrong?
I am running ADW launcher ex with no animations on.
Click to expand...
Click to collapse
I am that guy. Everything depends on what you are doing with your tab also. When I got 36 hours I basically was only listening to music in my car and checking emails with brightnesstona minimum. But when I'm programming and having to constantly reboot, flash and test things out I still pull at least 20-24 hours. I find it really hard to kill my battery during a day long period. I don't run any Widgets also.
wy2sl0 said:
I just saw the guy who made one of the roms in the dev forum say he got 36 hours on his one charge, and that 7 is terrible. I am running the stock kernel and pulling 6-7.5hrs battery with wifi and MINIMUM SCREEN BRIGHTNESS.
Is something wrong?
I am running ADW launcher ex with no animations on.
Click to expand...
Click to collapse
Stock kernel does not have current property exposed so you cannot see current directly. But if you look at dmesg log for fg_read_current reports... so you can judge tablets average current, something like this:
fg_read_current : CURRENT(-470mA), AVG_CURRENT(-416mA)
That's normal values for minimum brightness, WiFi on and idle.
Now do math. 470mA * 7 hours = 3290 mAh
So, if this is the case, then your tab needs battery calibration because you should have battery capacity around 6500mAh - 7000mAh.
But if your fg_read_current reads around 800mA - 900mA then you on a ballpark.
PS: with max back light current should be around 1000mA, so run time with calibrated battery would be around 6 hours. In order to pull 36 hours, current should be 6900 / 36 = 190mA - that means your have to turn screen Off completely and maybe put tablet in kind of semi-hibernate mode when only media players is working. I did not try that, I don't know.
Vlad_z said:
Stock kernel does not have current property exposed so you cannot see current directly. But if you look at dmesg log for fg_read_current reports... so you can judge tablets average current, something like this:
fg_read_current : CURRENT(-470mA), AVG_CURRENT(-416mA)
That's normal values for minimum brightness, WiFi on and idle.
Now do math. 470mA * 7 hours = 3290 mAh
So, if this is the case, then your tab needs battery calibration because you should have battery capacity around 6500mAh - 7000mAh.
But if your fg_read_current reads around 800mA - 900mA then you on a ballpark.
PS: with max back light current should be around 1000mA, so run time with calibrated battery would be around 6 hours. In order to pull 36 hours, current should be 6900 / 36 = 190mA - that means your have to turn screen Off completely and maybe put tablet in kind of semi-hibernate mode when only media players is working. I did not try that, I don't know.
Click to expand...
Click to collapse
Ok. If you don't mind what is there that I have to do to see this value? Run pershoots kernel?
Did you see a difference in current consumption between the stock and pershoots?
I went from stock to Task650's ROM with Pershoot's Kernel. At first battery life was terrible.
I then had to calibrate the battery. (Essentially letting it run down till the tab auto shuts down, then booted into recovery and left it running some more. Then charged to full while the tablet was off.)
I now get the battery life that Task650 is talking about.
ok, call me stupid but you want be to believe you can actually have the gtab running 30+ hours on one charge with screen and wifi on all this time? how much of that time is it actually running and how much it's hibernated (as in turned off by single press of power button or shut down autonomously when idle)?
wy2sl0 said:
Ok. If you don't mind what is there that I have to do to see this value? Run pershoots kernel?
Did you see a difference in current consumption between the stock and pershoots?
Click to expand...
Click to collapse
I did not mention significant change in current consumption going from stock to pershoot kernel. Min. brightness and web browsing will average 530- 550mA which gives about 12 hours of non-stop run-time.
In fact even overclocked CPU (I've 1.2Ghz) will eat maybe 20-50mA more BUT only when running 100%. Which is perfectly in line with overclocking speed increase of 20%. But it will have job done also 20% faster and then goes idle... so there would be no penalty for overclocking.
with pershoot kernel you can use Battery monitor or use ADB command:
adb shell cat /sys/class/power_supply/battery/batt_current
with stock kernel your only option to analyze kernel log, say like this:
adb shell dmesg | grep "fg_read_current"
Well, if you will find that your battery needs to be calibrated then here is the proper way to do it:
http://forum.xda-developers.com/showthread.php?t=1215182
antic604 said:
ok, call me stupid but you want be to believe you can actually have the gtab running 30+ hours on one charge with screen and wifi on all this time? how much of that time is it actually running and how much it's hibernated (as in turned off by single press of power button or shut down autonomously when idle)?
Click to expand...
Click to collapse
He did not specified how he run his music - with screen On or without... but this is obvious... screen is major power sucker, in order to claim 36hours screen must be off.
edit: alright, i just test it... streaming mp3 from Google music with screen off requires only 140mA with 25% volume. so 6900 / 140 = 49 hours.
and with screen on - 550mA.
At this point, how safe are we for running an OC anyways....cooling is terrible in a tablet without a fan, noone really knows the answer until they start dying in the coming months.
As for battery life, I will try your method and see what happens. If still toast, I will switch over to a different kernel, and do the data logging you are talking about.

Battery Drain EXTREMEMLY Fast

Hey guys, I am having a problem with my Amaze, more specifically, the battery is dying absolutely WAY to quickly. For example, yesterday morning, after unplugging my fully charged phone, I dropped it straight into my pocket, and maybe looked at it twice the entire day. When I pull it it at the end of the day, the battery is red, with 8% left. If I were to be using it, the battery would last about 30 minutes on a full charge, most likely. I've also noticed that the phone is really hot, even in my pocket. If it helps, I am on ICS and have been using it since it was leaked in April, however, this problem is new (about 2 days ago is when it first started), as I usually get about 8-10 hours with moderate usage. Can you guys please help me? Thanks!
Well if it just started happening recently, and you haven't made any changes, then the battery may just be going bad... If that's the case, you can call HTC and they will send you one free replacement.
sent from my NRGized Amaze,
powered by faux kernel v.10
could be just the battery.. but if you don't mind me asking - how long have you owned the device? I suggest you dl JuiceDefender from the playstore and see if that helps - Definitely helps my device get through the day with moderate use and one time charge every 1 1/4 a day but this could vary on owners usage. Also, check your settings to conserve battery life such as turning off wifi, gps, auto syncs on your fb, gmail etc. and adjust your brightness to the lowest if possible and OH... less widgets and windows > less power that the battery consumes. Hope that helps!
b33j7030 said:
could be just the battery.. but if you don't mind me asking - how long have you owned the device? I suggest you dl JuiceDefender from the playstore and see if that helps - Definitely helps my device get through the day with moderate use and one time charge every 1 1/4 a day but this could vary on owners usage. Also, check your settings to conserve battery life such as turning off wifi, gps, auto syncs on your fb, gmail etc. and adjust your brightness to the lowest if possible and OH... less widgets and windows > less power that the battery consumes. Hope that helps!
Click to expand...
Click to collapse
Like I said, this just started happening. I didn't just decide to leave all my wifi and GPS and Bluetooth on all day. Also, to answer your question, I've had it since the beginning of the year. I think it's just the battery. I'll call HTC and report back.
cool.. i'm hoping its just the battery.
b33j7030 said:
cool.. i'm hoping its just the battery.
Click to expand...
Click to collapse
Thanks. The overheating does concern me a bit, however.
HarryHyper said:
Thanks. The overheating does concern me a bit, however.
Click to expand...
Click to collapse
you're not alone in that dept but its highly tolerable... look on the bright side.. least you'll have a pocket warmer during WINTER lol
b33j7030 said:
you're not alone in that dept but its highly tolerable... look on the bright side.. least you'll have a pocket warmer during WINTER lol
Click to expand...
Click to collapse
LOL.
Alright guys, looks like it solved itself. Interesting...
I usually only get 6-8 hours on my battery, and its been like that from the beginning. is there something wrong with my phone then?
erkk_69 said:
I usually only get 6-8 hours on my battery, and its been like that from the beginning. is there something wrong with my phone then?
Click to expand...
Click to collapse
Nope, battery life isn't that great with this phone, depending on how much you use your phone and what all you use it for you will get any where from 6-14 hrs + or - some. Also your Rom and kernel will make a difference..
sent from my NRGized Amaze,
powered by faux kernel v.10
I find usually its the user when it comes to battery I get roughly 20 hours with regular use
Sent from my HTC_Amaze_4G using xda premium
HarryHyper said:
Alright guys, looks like it solved itself. Interesting...
Click to expand...
Click to collapse
Nice!... Glad to hear
This happens to me from time to time, and the phone is ALWAYS hot when this happens.
What I've come to discover that it's usually something that' activating the phone while asleep.
The phone is hot, because the processor is being used. That's why the battery is completely dead so quickly, something is pulling it out of deep sleep and causing it to run full bore. The key sign is the phone is hot.
I recommend you get an app that lets you see wakelocks, and what's keeping the phone awake etc (I use GSAM battery monitor) Whenever I notice my phone becoming hot for no apparent reason, I know for a FACT that my battery will be dead in a matter of hours. Lately it has been "Android System" that's the culprit, and I can't quite nail down what is doing it, but it's very random and not much of a problem because I do a reboot and things are back to normal.
First, try to reboot your phone. Get system tuner and see what processes are using the processor when the phone is hot (make sure you show ALL processes, even the default excluded ones). Check the wakelocks. Get battery monitor and check the mA usage (it keeps a running history). When my phone is running optimally, I have a mA drain of around 70-90mA when screen off/deep sleep, and it should maintain this type of drain... when my phone is becoming hot for no reason, I see numbers anywhere from 300-600mA drain for no apparent reason. A lot of the time there was an APP that was offending, so I would first check that. Like I said though lately it has been "Android System" and it's kind of hard to nail that down, but it's so random.
When my phone is cool to the touch most of the time, I know it's running optimally because it's achieving deep sleep. I've found a lot of it has to do with what you had running before you turn the screen off. A reboot ALWAYS fixes it for me. If you can't seem to nail down the offending app, do a full reset back to stock and you should notice that your phone runs very very cool when the screen is off and it's sleeping. I usually get anywhere from 24hrs-2 days of moderate use with the screen off governor set to conservative, and maximum clock for screen off ~600mHZ. I use interactive governor for screen on, but that's for responsiveness and you'll probably have better luck with ondemand for battery life. YOu can set these in System Tuner.
Just remember, if the phone is HOT, it's using energy. If it's hot, something, somewhere, is causing the processor to run at a high clock frequency. If the phone is HOT after being in your pocket/screen off for a good amount of time, something is definitely wrong/rogue app. The phone should never be hot returning from deep sleep. I bet if you check your default battery monitor (The android one) you'll notice that the bar for AWAKE is probably almost solid blue, something is preventing it from going into deep sleep. If I notice my phone is hot when I take it out of my pocket, I immediately know that something isn't right. This should NOT happen.
sportsstar89 said:
I find usually its the user when it comes to battery I get roughly 20 hours with regular use
Sent from my HTC_Amaze_4G using xda premium
Click to expand...
Click to collapse
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
ericdjobs said:
This happens to me from time to time, and the phone is ALWAYS hot when this happens.
What I've come to discover that it's usually something that' activating the phone while asleep.
The phone is hot, because the processor is being used. That's why the battery is completely dead so quickly, something is pulling it out of deep sleep and causing it to run full bore. The key sign is the phone is hot.
I recommend you get an app that lets you see wakelocks, and what's keeping the phone awake etc (I use GSAM battery monitor) Whenever I notice my phone becoming hot for no apparent reason, I know for a FACT that my battery will be dead in a matter of hours. Lately it has been "Android System" that's the culprit, and I can't quite nail down what is doing it, but it's very random and not much of a problem because I do a reboot and things are back to normal.
First, try to reboot your phone. Get system tuner and see what processes are using the processor when the phone is hot (make sure you show ALL processes, even the default excluded ones). Check the wakelocks. Get battery monitor and check the mA usage (it keeps a running history). When my phone is running optimally, I have a mA drain of around 70-90mA when screen off/deep sleep, and it should maintain this type of drain... when my phone is becoming hot for no reason, I see numbers anywhere from 300-600mA drain for no apparent reason. A lot of the time there was an APP that was offending, so I would first check that. Like I said though lately it has been "Android System" and it's kind of hard to nail that down, but it's so random.
When my phone is cool to the touch most of the time, I know it's running optimally because it's achieving deep sleep. I've found a lot of it has to do with what you had running before you turn the screen off. A reboot ALWAYS fixes it for me. If you can't seem to nail down the offending app, do a full reset back to stock and you should notice that your phone runs very very cool when the screen is off and it's sleeping. I usually get anywhere from 24hrs-2 days of moderate use with the screen off governor set to conservative, and maximum clock for screen off ~600mHZ. I use interactive governor for screen on, but that's for responsiveness and you'll probably have better luck with ondemand for battery life. YOu can set these in System Tuner.
Just remember, if the phone is HOT, it's using energy. If it's hot, something, somewhere, is causing the processor to run at a high clock frequency. If the phone is HOT after being in your pocket/screen off for a good amount of time, something is definitely wrong/rogue app. The phone should never be hot returning from deep sleep. I bet if you check your default battery monitor (The android one) you'll notice that the bar for AWAKE is probably almost solid blue, something is preventing it from going into deep sleep. If I notice my phone is hot when I take it out of my pocket, I immediately know that something isn't right. This should NOT happen.
Click to expand...
Click to collapse
what program do you use to measure battery drain? I use Battery Monitor Widget, but it's not giving me an accurate answer (lets say I had the phone on idle w/o data/sync... the available % is stable over 5 hours (~1% loss per hour), but the current usage says at least -100mAh)
for me, the idle battery drain (apps autosyncing/using data) is the problem
I see my device properly going to sleep (deep sleep is the majority of the usage, not too many wakelocks/processes.....)
with data off and sync off, idle battery usage goes to a minimum
paperWastage said:
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
what program do you use to measure battery drain? I use Battery Monitor Widget, but it's not giving me an accurate answer (lets say I had the phone on idle w/o data/sync... the available % is stable over 5 hours (~1% loss per hour), but the current usage says at least -100mAh)
for me, the idle battery drain (apps autosyncing/using data) is the problem
I see my device properly going to sleep (deep sleep is the majority of the usage, not too many wakelocks/processes.....)
with data off and sync off, idle battery usage goes to a minimum
Click to expand...
Click to collapse
I use battery monitor widget to measure drain.. as far as accuracy, I'm not sure? I don't know if it's EXACT but it seems to be a pretty good indicator of drain. When in deep sleep the phone usually measures anywhere from 70~mA-120mA. Usually it stays below 100. Before I changed the screen off governor / max freq (screen off) it was almost always 100+. Screen off governor is conservative with a max freq of ~600MHz.
I have no idea how exact it is, but when it's reporting ~300mA, my battery is definitely draining much faster.. and when it's reporting 500-900mA~ my battery is draining incredibly fast, so it at least seems to be a solid indicator of current usage.
ericdjobs said:
I use battery monitor widget to measure drain.. as far as accuracy, I'm not sure? I don't know if it's EXACT but it seems to be a pretty good indicator of drain. When in deep sleep the phone usually measures anywhere from 70~mA-120mA. Usually it stays below 100. Before I changed the screen off governor / max freq (screen off) it was almost always 100+. Screen off governor is conservative with a max freq of ~600MHz.
I have no idea how exact it is, but when it's reporting ~300mA, my battery is definitely draining much faster.. and when it's reporting 500-900mA~ my battery is draining incredibly fast, so it at least seems to be a solid indicator of current usage.
Click to expand...
Click to collapse
On my previous phone (LG Optimus T / Optimus One/ P509, CM9 ICS ROM), Battery Monitor Widget reports more accurate readings (idle with data off= -2mA or -20mA<dont remember>, accurately representing that 1% of battery would last at least 2 hours)
Phone with the new kernel (KozmiK Ruby -0.5a) still goes battery drain crazy (even with Juice Defender installed now).... I hit 10%, then got fed up, turned off data... then the phone slowly sipped battery for the next 3 hours going down only 1%.... sigh
I think Facebook Messenger is the data hogger in my case, since I do use it often... will try a new ROM build without logging onto facebook messenger, see how it goes
paperWastage said:
I'm just past my 9th day of using my Amaze 4G.... so far, if I turn off data and turn off autosync, my drain per hour goes below 1%/hour... so i could get >50 hour idle battery life + 4 hours screen usage
with data on and autosync off, maybe 2%/hour -> this translates to ~ 20hour idle battery life + 4 hour screen usage
with data on and autosync on, maybe 4%/hour -> 10 hour idle battery + 4 hour screen usage
I have only calendar widget on my home page, only Google Accounts on auto-sync (2 mail account, 1 contact, 1 calendar)....
EnergyROM 6.21.2012 ICS 4.0.3, faux kernel 0.07, ankor battery
Click to expand...
Click to collapse
What you said is true, at least for data on - autosync on. My battery last around 10 hours idle + 3.5 - 4 hours on screen usage. It seems that autosync eats a lot of battery. Will try to turn that monster off and see how much it will improve. I have bad habit to push refresh button on gmail/facebook widget, even with autosync on,
I used to get 14-16 hours. Now my battery won't last more than 6 hours. I gotta replace my Anker
Sent From My HTC Amaze 4G via Someone's Room
Most recently I got 1 day and five hours with a fair amount of use by using faux 011 kernel and using CPU editor script to set it to battery saving profile. I'm at 45% right now with fairly heavy use after over 18 hours.
Battery life is totally under your control, it takes some work to get it where you want it.. but you also have the option of buying a bigger anker battery with external charger for $20 and carrying that spare battery, and simply not giving a damn.
Just saying, battery doesn't have to matter for a very small price and a little space to carry the spare battery in your pocket.
Sent from my HTC_Amaze_4G using xda app-developers app

Share your battery life & temperature please

Hey, so I've seen several people claiming fantastic battery life, etc. So, I am just wondering what's your experience in general. If you've got some free time and feel like typing, can you list several things like:
roms & kernel
stock/anker battery
battery life
screen time (and possibly voice call time or whatever else that seems to consume lots of the battery life)
highest battery temperature (I recently got pretty high so I was kind of worried)
and anything else you think might worth sharing (favorite actress? :silly
As for me, I recently installed Speed ROM 6.5 with stock kernel on stock battery
I only got 8 hours battery life to get to 14% with 3 hours of screen time (mostly used for game, browsing, and flipboard)
I got up to 100F (~40.5C) after playing a game for about 15-20 mins which made me leave it for a few mins to cool down. The next time I played the game again, it got up to 109F (~43.5C) after playing for 20-30 mins....
I am wondering whether that kind of high temperature is normal or not, and whether my battery life seems ok or bad; which is why I am hoping people can share their experience here. I haven't try using faux kernel though (might try it tomorrow in hope for a better batter life)....
So, again... if anyone got free time and feel like typing, please share it with me :angel:
From my g2 to this phone all I ever see is how bad the battery is. Never noticed a difference switching roms and battery across all smartphones I've used is allot what I expect.
Some people just can't be happy you know. Not to mention people never agree on anything (me included ).
Just my two cents
Sent from my HTC_Amaze_4G using xda app-developers app
Spastic909 said:
From my g2 to this phone all I ever see is how bad the battery is. Never noticed a difference switching roms and battery across all smartphones I've used is allot what I expect.
Some people just can't be happy you know. Not to mention people never agree on anything (me included ).
Just my two cents
Sent from my HTC_Amaze_4G using xda app-developers app
Click to expand...
Click to collapse
Well, first off, I am not trying to complain about the phone here. All I am asking/trying to find out is whether my experience is "normal" or not for Amaze.
I also come from G2 and obviously the battery life will be worse on the Amaze in general. This phone is 1.5ghz dual core and 4.3" display compared to 800mhz single core and 3.7" display on g2 with only extra ~300mah on the amaze.
I just want to know if my experience of getting only 8 hours battery life (with 3 hours of screen time consist of game and browsing) and getting a high temperature of 109F on the battery is considered "normal" or not for this particular phone. I only have one phone here; so, I don't know if my unit is bad unit or if it is normal for the Amaze.
So again, by all means, I am not trying to complain about this amazing phone here. I am just trying to find out if this is what normally happen with this phone.
And yeah I'm one of those guys that can never be happy :silly:. When I used G2, I want larger phone and faster performance. When I got Amaze, I want slightly larger screen and much better battery performance. So, yeah I can never be happy with my phone :laugh:
The temperature thing is definately normal, it can get pretty high. I've had it go above 109f while on video chats on Skype. As for thebattery, that's normal too its just dependent on the user. U may have something that's running continuously in the background that your not aware of that's causing drainage. Many things that could be effecting the battery really
sent from my NRGized Amaze,
powered by faux kernel v.16
My battery temperature is over 9000!
sorry someone had to say it
@OP, most likely you either have a bad battery, or your phone isn't sleeping properly on idle, or your phone has some problems with the RUU
Code:
Battery is ~1900mAh. If you use it for 3 hours active at around 400mAh, that is 1200mAh
700mAh left for idling the rest of the 5 hours. My idle current usage is around 9-40mAh as reported by Battery Monitor Widget(go to settings, change monitoring mAh to HTC Sensation to get a better reading)
700/5 = 120mAh/hour.... this means your phone isn't sleeping properly
Get CPU Spy... install it, then put your phone down for an hour without using it.... after that, does the report show that it goes to deep sleep?
When I got my phone and flashed the ENERGY rom, I had ~8 hours of total uptime (1-2 hours of usage)... i reflashed the RUU (do it on 100% battery), then it is better now
Now, on the Energy STOCK ICS rom with FAUX latest(0.12?)
Anker battery
15 hours of uptime
1-2 hours of screen-on time(roughly 2-3 hours of phone "awake" time)
don't remember battery temps, but i don't ever remember ti being that high
interactive governor, max frequency 1.4 ghz(to maximize battery life)
data on, autosync on, 2 gmail accounts synced only
My 100%->80% battery drains in 90 minutes, but after that, it slows down
I added the following to build.prop to tweak more battery life
Code:
# Power Save Tweaks
ro.ril.disable.power.collapse=0
pm.sleep_mode=1
If you really want to stretch out the battery, change the governor to powersave(forces processor to 192mhz always), but it definitely lags and I wouldn't recommend it unless you really really need to max battery life
EDIT: Go to Settings->power->see what is using my battery, post a screenshot (this one is 16 hours plus ~2 hours usage)
see the part that says "awake", and the part that says "screen on"? It should be correlate mostly -> when you use your phone's screen, the phone is awake.... when you turn off the screen, the device should be sleeping and not be awake
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aj_2423 said:
The temperature thing is definately normal, it can get pretty high. I've had it go above 109f while on video chats on Skype. As for thebattery, that's normal too its just dependent on the user. U may have something that's running continuously in the background that your not aware of that's causing drainage. Many things that could be effecting the battery really
sent from my NRGized Amaze,
powered by faux kernel v.16
Click to expand...
Click to collapse
I guess this phone is just that "hot" eh....
So, you're saying that I should be able to get a better battery life than that?
By the way, did you use Juice Defender or anything like that? Or did you just let your mobile network and wifi on all the time?
`Ghost` said:
My battery temperature is over 9000!
sorry someone had to say it
Click to expand...
Click to collapse
It hasn't exploded yet?!?! You can use your battery to heat up your room in winter :silly:
paperWastage said:
@OP, most likely you either have a bad battery, or your phone isn't sleeping properly on idle, or your phone has some problems with the RUU
Code:
Battery is ~1900mAh. If you use it for 3 hours active at around 400mAh, that is 1200mAh
700mAh left for idling the rest of the 5 hours. My idle current usage is around 9-40mAh as reported by Battery Monitor Widget(go to settings, change monitoring mAh to HTC Sensation to get a better reading)
700/5 = 120mAh/hour.... this means your phone isn't sleeping properly
Get CPU Spy... install it, then put your phone down for an hour without using it.... after that, does the report show that it goes to deep sleep?
When I got my phone and flashed the ENERGY rom, I had ~8 hours of total uptime (1-2 hours of usage)... i reflashed the RUU (do it on 100% battery), then it is better now
Now, on the Energy STOCK ICS rom with FAUX latest(0.12?)
Anker battery
15 hours of uptime
1-2 hours of screen-on time(roughly 2-3 hours of phone "awake" time)
don't remember battery temps, but i don't ever remember ti being that high
interactive governor, max frequency 1.4 ghz(to maximize battery life)
data on, autosync on, 2 gmail accounts synced only
My 100%->80% battery drains in 90 minutes, but after that, it slows down
I added the following to build.prop to tweak more battery life
Code:
# Power Save Tweaks
ro.ril.disable.power.collapse=0
pm.sleep_mode=1
If you really want to stretch out the battery, change the governor to powersave(forces processor to 192mhz always), but it definitely lags and I wouldn't recommend it unless you really really need to max battery life
EDIT: Go to Settings->power->see what is using my battery, post a screenshot (this one is 16 hours plus ~2 hours usage)
see the part that says "awake", and the part that says "screen on"? It should be correlate mostly -> when you use your phone's screen, the phone is awake.... when you turn off the screen, the device should be sleeping and not be awake
Click to expand...
Click to collapse
Hmm... I would try to check the stuff that you said. I did see the battery use like you did and I have much more awake (since I used it for games and browsing continuosly). But, when I was not using it, it doesn't show that many "awake" status which is why I thought that Amaze battery performance is just that poor. I forgot to try third party app like battery current widget or cpu spy. I will check those out.
Did you use Juice defender or anything like that? Or, did you just set them manually when you need it?
And I did leave my WiFi and auto sync on.... From your usage, I'd assume you turn off your WiFi when you're not using it, right?
Thanks for the input
Edit: So, I am guessing there's a rogue app on my phone? I just reboot my phone, leave it for a minute, and battery current widget shows 200mA on my notification bar
From what I'm reading your a heavy user. Like me lol. The most I get is 6-8 hrs. With 1.5-2 hrs screen on time. Comparing that with others who get double digits It's nothing but I'm a heavy user. I stream Pandora daily surf the internet for 1 hr non stop, xda for most of the time. . And on weekends I'll have most 4 hrs. But 3.5 of those screen on with data streaming and screen on with out going off. Kinda like watching a netflix movie on mobile network. I use my phone like if it is my laptop now. I rarely use my laptop. I don't have internet nor WiFi to connect to. But if I tether I would run out of data faster so I avoid it. Besides battery draining faster.
I think there is a difference between:
1. leaving the screen on for a while, causing the phone and battery to get hot. Specially when gaming because CPU is constantly running.
2. And total screen on time accumulated of 2-4 hrs screen on. Which is achieved when sporadically checking phone for text, calls, email, quick surfing. Then shutting of screen through out the day.CPU goes to deep sleep phone stays cool.
Now that's what I call a heavy user.
Remember when phone is hot battery drains faster so you need to find a way to cool it down. Sometimes there are settings in cpu apps that when phone reaches certain temperature that app will force cpu clock down a lot as to use less power to start cooling down but causing lag.
I've got a 4 month old stock battery with latest faux kernel v.16 with battery saving tweaks on it. Energy rom stock 8-1. If there is anybody that reaches double digits with 6-7 hours 4g mobile streaming not wifi at all. 2 hrs without turning the screen off not 2 total hours. Please say I? I'd really like to know your secret.
Sent from my HTC_Amaze_4G using xda premium
shuvarts said:
Hmm... I would try to check the stuff that you said. I did see the battery use like you did and I have much more awake (since I used it for games and browsing continuosly). But, when I was not using it, it doesn't show that many "awake" status which is why I thought that Amaze battery performance is just that poor. I forgot to try third party app like battery current widget or cpu spy. I will check those out.
Did you use Juice defender or anything like that? Or, did you just set them manually when you need it?
And I did leave my WiFi and auto sync on.... From your usage, I'd assume you turn off your WiFi when you're not using it, right?
Thanks for the input
Edit: So, I am guessing there's a rogue app on my phone? I just reboot my phone, leave it for a minute, and battery current widget shows 200mA on my notification bar
Click to expand...
Click to collapse
Battery Current Widget... go to the options (top right), change the current selection(should be first row, then middle row) to "HTC Sensation" (it'll be more accurate)
that program doesn't accurately report mA if you don't change it(before changing, it'll be screen-off deep sleep 100mAh, but after switching, 10-40mAh)
I don't have Juice Defender on... autosync and data is on all the time
try w/o wifi on... i think wifi should take less battery power than data, but it always depends
on my screenshot, if you go back one and click on the screen-on... what does it say?
what does CPU Spy say about your phone going to deep sleep?
fcpelayo said:
From what I'm reading your a heavy user. Like me lol. The most I get is 6-8 hrs. With 1.5-2 hrs screen on time. Comparing that with others who get double digits It's nothing but I'm a heavy user. I stream Pandora daily surf the internet for 1 hr non stop, xda for most of the time. . And on weekends I'll have most 4 hrs. But 3.5 of those screen on with data streaming and screen on with out going off. Kinda like watching a netflix movie on mobile network. I use my phone like if it is my laptop now. I rarely use my laptop. I don't have internet nor WiFi to connect to. But if I tether I would run out of data faster so I avoid it. Besides battery draining faster.
Click to expand...
Click to collapse
Maybe you should try to mod the Atrix Lapdock... if it works, you get a larger screen and a 35W battery
I've got a 4 month old stock battery with latest faux kernel v.16 with battery saving tweaks on it. Energy rom stock 8-1. If there is anybody that reaches double digits with 6-7 hours 4g mobile streaming not wifi at all. 2 hrs without turning the screen off not 2 total hours. Please say I? I'd really like to know your secret.
Click to expand...
Click to collapse
if you are only getting 8 hours uptime with 1-2 hours of usage, then your phone's not going to sleep properly... I'd reflash the RUU, then flash Energy ROM and faux kernel... i had that problem before I reflashed RUU (but that was before I knew more about CPU states and mAh usage on this phone, so I don't know if it was a problem with the deep sleep, or the phone not properly updated to ICS when I got it from someone else)
you want to try to max battery life? I can give you hints to hit that mark... it's all about physics/electronics
your battery is 1900mAh.... Using Battery Monitor Widget(with the Settings changed to detect the phone as "HTC Sensation", see above)
With the tweaks in my first post of the build.prop, BMW shows my idle around 10-40mAh..... 10 hours of idle = 100-400mAh. Note, this is with sync and data on... if you use Juice Defender or data off, probably less
So, idle, you use up 400mAh... you have 1500mAh left
1500mAh / 6 hours = 250mAh each hour.... with BWM, it shows that the current usage goes between 100-500mAh depending on how much screen brightness, data used, processor speed... If i choose powersave, I think it goes between 50-300mAh, but its really laggy, noticeable
300mAh * 6 hours = 1800... close enough
to avoid the 100%->90% fast drain, employ bump charging:
either
1) charge your phone to 100%. remove plug, wait for it to drop to 90%. replug it, charge to 100%... repeat for 5-10 times
2) charge your phone to 100%. remove plug, shutdown. Replug it, wait till the light goes green, boot up, charge to 100%, remove plug and shutdown, replug it , wait till light goes green etc.... do the cycle for 5-10 times
I was trying to see how much I could get out of my phone. I used my phone as little as I could, putting it into airplane mode when I slept.
ROM and Kernel: I was using the latest build of Energy and Faux Kernel v.15 at the time of the picture
Using stock battery, unfortunately I do not know what the highest battery temperature is.
View attachment 1268923 View attachment 1268924 View attachment 1268925
idaggerpwn said:
I was trying to see how much I could get out of my phone. I used my phone as little as I could, putting it into airplane mode when I slept.
ROM and Kernel: I was using the latest build of Energy and Faux Kernel v.15 at the time of the picture
Using stock battery, unfortunately I do not know what the highest battery temperature is.
Click to expand...
Click to collapse
unfortunately, for this device, the screen brightness and dual-cpu takes up a lot of power... if you see the pic below, when you use your phone(screen-on/awake), the battery % left has a sharp drop
I know for my old phone, LG Optimus T, I didn't have a data plan... the phone had data off all the time, and I got days out of using it(phone calls, wifi/browsing, checking gmaps offline)... once I enabled a data plan, it got half (like 1.5 days instead of 4)
if you calculate your usage... its possible
24 hours * 50mAh during idle = 1200 mAh
2 hours * 300mAh/hour during screen-on usage = 600mAh
total = 1800mAh, the capacity of your battery
paperWastage said:
to avoid the 100%->90% fast drain, employ bump charging:
either
1) charge your phone to 100%. remove plug, wait for it to drop to 90%. replug it, charge to 100%... repeat for 5-10 times
2) charge your phone to 100%. remove plug, shutdown. Replug it, wait till the light goes green, boot up, charge to 100%, remove plug and shutdown, replug it , wait till light goes green etc.... do the cycle for 5-10 times
Click to expand...
Click to collapse
So if I use either of those 2 methods above, is my battery 'cured" of the 100% to 90% fast drain? Or do I have to keep doing it over a period of time?
icepixie said:
So if I use either of those 2 methods above, is my battery 'cured" of the 100% to 90% fast drain? Or do I have to keep doing it over a period of time?
Click to expand...
Click to collapse
bump charging only helps you for that one time... you have to do this every time if you want max battery capacity
the problem is 2 things
1) the hardware/software is configured to maximize battery lifespan, meaning to slowly charge it and not go to 100% (high voltage, damages battery)...
2) the hardware/software is poorly coded, can't read the battery voltage properly...
either way, doing this means you are forcing current into the battery every time... your battery will hold less charge in a few months if you force it to full everytime... so you have to get a new battery aftera couple of months or live with lower capacity
I will just try to observe it better tomorrow using all those apps. With much less usage (1.5 hrs of screen time), i only got 11hrs of battery life. The screenshot below is for those 1.5hrs f screen time... I dont use jd and got email sync every 1 or 2 hr though....
Sent from my HTC_Amaze_4G using xda app-developers app
I tested the idle-deep sleep capacity of the phone...
got 21 hours idle, 17 minutes screen-on (minimal use of phone) with 50% left
here is my phone with data and auto-sync ON, I got roughly 10 emails(all received during different times), had about 10 minutes of phone calls
NOTE: around the first part of the graph, you see the %-left spike up... I rebooted my phone then... and you can see that the battery-monitoring software/hardware part recalibrates itself to the real value
NOTE: cell standby-time of 21 hours used more battery than screen-on of 17 minutes.
When I used the phone for another 15 minutes, screen used 35% of battery while cellular standby dropped to 22%
tl;dr, using the phone, especially the screen, kills the battery a lot more... not using the phone = lasts a long time
paperWastage said:
I tested the idle-deep sleep capacity of the phone...
got 21 hours idle, 17 minutes screen-on (minimal use of phone) with 50% left
here is my phone with data and auto-sync ON, I got roughly 10 emails(all received during different times), had about 10 minutes of phone calls
NOTE: around the first part of the graph, you see the %-left spike up... I rebooted my phone then... and you can see that the battery-monitoring software/hardware part recalibrates itself to the real value
NOTE: cell standby-time of 21 hours used more battery than screen-on of 17 minutes.
When I used the phone for another 15 minutes, screen used 35% of battery while cellular standby dropped to 22%
tl;dr, using the phone, especially the screen, kills the battery a lot more... not using the phone = lasts a long time
Click to expand...
Click to collapse
I guess after using all those apps that you mention, I can kind of see that Amaze battery is just way worse than my G2. I was pampered with my G2 battery life for a week and now I realized how bad Amaze battery is. lol
I got 11% left after 12h 15min. That's about 1550mA used (I use stock battery).
almost 3 hours of screen time (3*350) = about 1050mA
25 mins of phone call = ~120 mA
about 8h 45 mins of idle = 360mA
So, yeah, it summed up about right this time (more accurate compared to my first result where I think I got a rogue app)...
**I am eagerly patiently excitedly waiting for a fully working stable CM9 by sport :angel: **
On a side note, just wondering if anyone know if galaxy s2 have better, worse, or about same battery life? I am just curious since s2 is supposed to be amaze rival at t-mob....
Here's mine
Rom: Fourth Bar Jellybean Fusion
Kernel: Faux's Kernel, latest edition [August 15th]
Average Temp: high 90's
Average Battery Life: 5-6 hours.
Realize that what you do with screen on makes a significant difference- If I play organ trail(awesome zombie game styled after old school oregon trail game) I can play for a long time with little battery drain.. but it is a 2d game, and not going to be very processor intensive. If I play final fantasy 3, a 3d game, wow.. battery will drain much quicker, but then again, it IS a 3d game, and processor intensive. So HOW you use your phone is even more important than the screen on time.
With the latest faux(17) kernel, and 2-3 hours of screen on, the last few days I have 45% battery left after 15 hours since unplugged. Maybe 30-45 minutes was organ trail, but not much other gaming. The only changes I made, were made to the kernel, which I posted here(be aware that making all those changes will create some small lag changing screen orientation or opening app drawer, but haven't noticed anything else). http://forum.xda-developers.com/showpost.php?p=30298629&postcount=4
I also underclock to 1.2ghz- this doesn't create any lag, and no game or app I have used seems to work ANY better @1.5ghz than it does @1.2ghz. The main difference is the voltage it uses at max speed will be less @1.2ghz.
If you have weak 4g signal, there is an app i recently posted in some thread that puts it on 2g while screen off.. that has helped a lot too. If you have constantly good signal, then it won't make MUCH difference(tho 2g does drain less than 4g even with good signal), but it takes up to 2 seconds for it to switch to 4g after screen on. I can wait two seconds before opening an app, I don't care.
I assume you have used betterbatterystats to see what apps keep your phone from deep sleep, under partial wakelock?
And when I get obnoxious drain, but NOT because the phone isn't going into deep sleep.. I turn on the logging of an app called currentwidget- it can actually measure the MAH used while using specific apps.. the app itself can cause a bit of drain, but you'd only use it long enough to see what app is so battery inefficient. I have more about how to use that under battery savings part of the bible in my signature.
Edit: And I consistently get battery temperature of 77.7-77.9F, I always have, no matter the kernel or rom or settings.. perhaps it raises a TINY bit when I play some intensive game, but never noticeable. I am using an anker battery tho, so if you are using stock, perhaps that is a factor.
broker32 said:
Here's mine
Rom: Fourth Bar Jellybean Fusion
Kernel: Faux's Kernel, latest edition [August 15th]
Average Temp: high 90's
Average Battery Life: 5-6 hours.
Click to expand...
Click to collapse
Whoa... I suppose there is someone out there with similar condition with mine... I almost thought I am the only one
Silentbtdeadly said:
Realize that what you do with screen on makes a significant difference- If I play organ trail(awesome zombie game styled after old school oregon trail game) I can play for a long time with little battery drain.. but it is a 2d game, and not going to be very processor intensive. If I play final fantasy 3, a 3d game, wow.. battery will drain much quicker, but then again, it IS a 3d game, and processor intensive. So HOW you use your phone is even more important than the screen on time.
With the latest faux(17) kernel, and 2-3 hours of screen on, the last few days I have 45% battery left after 15 hours since unplugged. Maybe 30-45 minutes was organ trail, but not much other gaming. The only changes I made, were made to the kernel, which I posted here(be aware that making all those changes will create some small lag changing screen orientation or opening app drawer, but haven't noticed anything else). http://forum.xda-developers.com/showpost.php?p=30298629&postcount=4
I also underclock to 1.2ghz- this doesn't create any lag, and no game or app I have used seems to work ANY better @1.5ghz than it does @1.2ghz. The main difference is the voltage it uses at max speed will be less @1.2ghz.
If you have weak 4g signal, there is an app i recently posted in some thread that puts it on 2g while screen off.. that has helped a lot too. If you have constantly good signal, then it won't make MUCH difference(tho 2g does drain less than 4g even with good signal), but it takes up to 2 seconds for it to switch to 4g after screen on. I can wait two seconds before opening an app, I don't care.
I assume you have used betterbatterystats to see what apps keep your phone from deep sleep, under partial wakelock?
And when I get obnoxious drain, but NOT because the phone isn't going into deep sleep.. I turn on the logging of an app called currentwidget- it can actually measure the MAH used while using specific apps.. the app itself can cause a bit of drain, but you'd only use it long enough to see what app is so battery inefficient. I have more about how to use that under battery savings part of the bible in my signature.
Edit: And I consistently get battery temperature of 77.7-77.9F, I always have, no matter the kernel or rom or settings.. perhaps it raises a TINY bit when I play some intensive game, but never noticeable. I am using an anker battery tho, so if you are using stock, perhaps that is a factor.
Click to expand...
Click to collapse
Good to know that. I used a different app to check the current mah and it seems reasonable. I forgot to use better battery stat; but, based on cpu spy, the deep sleep time seems about right... I haven't updated my kernel to v17 (still on v15) and haven't done any edit that you mention since I was still switching roms to find the ROM that suits my need. I might try to do those stuffs today and hope for the best.
And btw, I am kinda jealous with your battery life... 45% left after 15 hours unplugged and 3 hours screen ON
I might get similar result; but my battery left will be 10% and those screen on are mostly on flipboard, xda, and browsing....
Like right now, 6h 10min unplugged, 40 mins of screen on (xda & flipboard), and I am down to 66% :crying:
**On a side note, I just get my hand on gs2 and I am just curious to try and see how good it is since gs2 seems to be such a hyped up device compared to amaze.... :laugh:
shuvarts said:
Like right now, 6h 10min unplugged, 40 mins of screen on (xda & flipboard), and I am down to 66% :crying:
**On a side note, I just get my hand on gs2 and I am just curious to try and see how good it is since gs2 seems to be such a hyped up device compared to amaze.... :laugh:
Click to expand...
Click to collapse
Just checked my usage. I'm sorta similar to yours in terms of screen on time. 11 h 43 m since unplugged, 39 min screen on (facebook, news, texts) and I'm down to 62%. My screen on time isnt that high, yet something else is draining my battery.
Awake time is 1 h 44m. Lots of Alarm Manager partial wakelocks. need to figure out what's causing those

[Q] Is less than 2 hours of battery life normal for Galaxy S2 with

Screen darker than | 5 times darker than | normally possible thanks to Screen Filter app,
removed more than 70 system apps (I have less than 40 now) with the rest except absolutely essential being frozen,
WiFi GPS and all the rest turned off,sound muted, CPU and GPU undervolted and underclocked,(flashed 4.4.2 ROM and Dorimanx 10.43v98.4 Kernel which noticeably boosted battery life, especially after tweaking with the settings) disabled error reporting and everything else battery using I could think of while playing any game?
I doubled the battery life thanks to all the changes I made (read above) because the battery lasted barely an hour, often less.The issue was ever since I got the phone and I thought it was caused by the Samsung bloatware and Android 2.3.4.Being very UNsatisfied with the battery I bought a new one and it doesn't help except that I have double the battery life again (4 hours max) which is still very bad for Me.
The screen gets hot but the battery is even hotter and the area around the SoC (CPU, GPU etc) gets the hottest, I believe
**So is this normal? What else can I do apart from the improvements I wrote above to improve the situation?**
If a battery gets hot maybe try flashing different modem.Can eat alot of battery if it's poorly suited for your country.
TheImpossibleEnemy said:
If a battery gets hot maybe try flashing different modem.Can eat alot of battery if it's poorly suited for your country.
Click to expand...
Click to collapse
Even with airplane mode on wifi always off, no simcard, phone etc apps removed? (In about phone baseband entry is blank!)
It shouldn't be so.
This could be a problem.Try flashing one suitable for your country or one of the so called global ones,like xxms2,xxms4 etc.
Wrong modem+ril may eat your battery even on airplane mode.

How much screen on time are you getting?

I'm running cm11 snapshot with crpalmer's kernel.
On Wifi or 4G with power save CPU profile and Batteryguru running (power saving GPS on) I get ~2 hours screen on time...2.5 on a good day.
Is that what I should expect, or is something wrong with my battery?
What's your screen on time and which ROM are you using?
amordesoul said:
I'm running cm11 snapshot with crpalmer's kernel.
On Wifi or 4G with power save CPU profile and Batteryguru running (power saving GPS on) I get ~2 hours screen on time...2.5 on a good day.
Is that what I should expect, or is something wrong with my battery?
What's your screen on time and which ROM are you using?
Click to expand...
Click to collapse
I'm averaging about the same. Especially recently, it seems my battery performance is seriously degrading. I guess after almost two years of use, it's finally showing its signs of wear.
This is with stock kernel, M11 Snapshot build of CM 11.
supertoast92 said:
I'm averaging about the same. Especially recently, it seems my battery performance is seriously degrading. I guess after almost two years of use, it's finally showing its signs of wear.
This is with stock kernel, M11 Snapshot build of CM 11.
Click to expand...
Click to collapse
The phone is a hand me down so it is new to me. I'm guessing from your response that if the battery wasn't 2+ years old it would be getting more screen on time? How much screen on time did would be expected from a new phone?
amordesoul said:
The phone is a hand me down so it is new to me. I'm guessing from your response that if the battery wasn't 2+ years old it would be getting more screen on time? How much screen on time did would be expected from a new phone?
Click to expand...
Click to collapse
I can't really remember what I got in my phone's prime time, but, if I recall correctly, I was pushing 3:30-4 hours absolute max on a good day. Usually around 3-3:30.
amordesoul said:
I'm running cm11 snapshot with crpalmer's kernel.
On Wifi or 4G with power save CPU profile and Batteryguru running (power saving GPS on) I get ~2 hours screen on time...2.5 on a good day.
Is that what I should expect, or is something wrong with my battery?
What's your screen on time and which ROM are you using?
Click to expand...
Click to collapse
Getting that much screen time is good. That for sure is nothing to complain about. On stock you can not get that much screen time. Your battery is fine.
1.5 year old battery Craftmann (similar to stock)
CM 12.1 with stock cm's kerlel. (mpdecision)
Wifi and 1x CDMA (no 3g/EVDO/LTE).
no google services
disabled almost all with Autostarts apk.
disabled system apps like Music, Gallery, Market, Downloads, Calendar..
disabled sensors and services: location, rotation, synchronization, etc.
all 4 cpu cores are set with min 384 - max 594 MHz frequency and default governor. (with conservative governor you can receive +20min, but with little lags).
5-6 hours on-screen (less 5 hrs if reboots alot) with Opera Mini.
4-4.5 hrs. with online/offline video playing or browsing with stock browser.
i learned, that stock apps like Music are very hungry and disabling internet /mobile data between sessions makes battery life longer

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