Battery Drain Issue - Galaxy S II Q&A, Help & Troubleshooting

Hey Guys,
I am looking for some help. My phone seems to be losing charge at a rate of about 5% an hour when I am at work, tried with 2 different ROMs (NEAT and Wanam stock+rooted) so far and 2 different Modems (LPS and LPG) and it is the same with both. At home, it loses around 1-2% an hour which is much better. The difference I think is the signal level, at home it averages around -85dBm (3G) and an average of around -105dBm (3G) at work which I think causes it to switch between 2G and 3G often and that could be the reason for the battery drain.
Aside from switching my phone to "GSM Only", do you guys have any other suggestions to improve the signal/battery life?
The main culprit on the battery usage screen is Android OS:
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Regards
Shiraz

Try the Ressurection Remix 2 ROM hear its the best for battery saving. Its on ICS
Sent from my Samsung Galaxy GT-S5660 running Beats with HTC Sense 5 ROM using xda app-developers app

Thank you for the suggestion but I would rather not change to an AOKP/AOSP Rom just yet as I only bought the phone 2 weeks ago and want to give the Stock ROM a go.
I have set my Network Mode to GSM only today and so far my battery has dropped 20% in 4 hours :/
It does not look to be ROM or Radio dependent so far as I have tried 2 different versions of both and still, I have drain.
Regards
Shiraz

ShirazSuleman said:
Hey Guys,
I am looking for some help. My phone seems to be losing charge at a rate of about 5% an hour when I am at work, tried with 2 different ROMs (NEAT and Wanam stock+rooted) so far and 2 different Modems (LPS and LPG) and it is the same with both. At home, it loses around 1-2% an hour which is much better. The difference I think is the signal level, at home it averages around -85dBm (3G) and an average of around -105dBm (3G) at work which I think causes it to switch between 2G and 3G often and that could be the reason for the battery drain.
Aside from switching my phone to "GSM Only", do you guys have any other suggestions to improve the signal/battery life?
The main culprit on the battery usage screen is Android OS:
Regards
Shiraz
Click to expand...
Click to collapse
Get cpu spy from the play store to see if your device is deep sleeping, and better battery stats from xda app section to find out what wake locks you have
Sent from my GT-I9100 using xda premium

I used CpuSpy and my phone is going into deep sleep. I've just got BetterBatteryStats so will monitor it and see, thanks!

Related

[Q] Battery life on Flyer 3G?

hey guys, I have both the Flyer 3g, and the EVO View TAB. And i noticed the battery life on my Flyer sucks. it will not last half as much as the view. I think the View has a 4000mah battery, does anyone know if its the same for the Flyer 3G?
if not does anyone know if i can maybe buy a replacement battery for my view and solder it on my Flyer(assuming its soldered on)?
I haven't really had a problem with battery life... 8+ hours of work use (you know, youtube, note taking, checking email every 5 minutes...)
I don't know if anyone would bother creating an extended battery for this, since the battery is not removable... not saying it's impossible, but I haven't found anything...
Ordieth said:
I haven't really had a problem with battery life... 8+ hours of work use (you know, youtube, note taking, checking email every 5 minutes...)
I don't know if anyone would bother creating an extended battery for this, since the battery is not removable... not saying it's impossible, but I haven't found anything...
Click to expand...
Click to collapse
I wish i had 8plus hours. I wonder if its the phone calling thats been draining my battery.
Well ... i use battery monitor all the time. What I found out is that with 3g disabled notetaking plus audio recording consumes an average of 600 mah. With 3g enabled it jumps up to 850. With 3g enabled i get 4h 30m display enabled. Without 3g but still using wifi i get 6 hours of display enabled
Think about getting a battery pack like the treckstor dual port. It can charge the flyer up to 80% battery life.
Sent from my Liquid using XDA App
Himmig said:
Well ... i use battery monitor all the time. What I found out is that with 3g disabled notetaking plus audio recording consumes an average of 600 mah. With 3g enabled it jumps up to 850. With 3g enabled i get 4h 30m display enabled. Without 3g but still using wifi i get 6 hours of display enabled
Think about getting a battery pack like the treckstor dual port. It can charge the flyer up to 80% battery life.
Sent from my Liquid using XDA App
Click to expand...
Click to collapse
Thanks, I'll give it a try.
Let try custom ROM.
The official rom make me unhappy with poor battery life.
I try many custom rom.
Custom Honeycomb still no good in battery life.
Now,i use i00 GB 2.3.4,it 's good battery life for me
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at the late morning,i read the pdf paper for awhile
afternoon,i play the online game with WIFI
alway on 3G internet and bluetooth headset.
it's good for me.

My battery usage

I think this is woeful
Sent from my GT-I9100 using XDA App
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This is the Q&A section of the board. You made a statement.
Apart from getting roughly 3 hrs of screen on time with around 63% of battery (this based purely on your screen shot & may not be entirely accurate given the complete lack of detail you've provided), this tells us pretty much nothing about your usage.
Well you've probably had about 3 hours screen time + 3g + Bluetooth on and connected as well. Seems fair to me.
Anyway, with so many battery related threads why not just post there instead of starting a new thread?
Sent from my GT-I9100T
Really, what for new thread?
Not clearly...
Turn on GSM-only in the network settings. Turn off bluetooth and auto-brightness. Sync and background data also sucks the hell out of your battery ^^
this is my usage. the battery keeps reducing even during idle, with no wakelocks, by around 3% an hour. i've set the setting to gsm only, turned off wifi & bluetooth, turned off auto syncing, but its still like this.
and in the 2nd attachment picture is the rom i'm using
any help would be greatly appreciated. thanks
looks good but how is your on screen time?
is that considered good? cause i've seen a straight line (only losing 1 to 2% over 8 hours) during screen off time. i don't quite like it now cause i always fully charge before sleep, and when i woke up it only remains 70%....
on screen time, i've never fully use from 100% to dead, so cant be sure...
Try the JuiceDefender application (Market). The free version is good enough to help you out. I use the ultimate version and using my phone all day long (3g, internet, sync, gps) I can easily got 40% to 50% left at night (full charge in the morning).
i dun think i'll need juice defender...i always do everything it does (i.e turning off 3g, wifi, bluetooth, sync, gps) when not in use...
You need autostarts, I paid for it and its made having my phone possible.
Sent from my Inspire 4G using xda premium
Don't use Juice Defender. Unless you want to use more battery. It uses far more juice than it claims to save if many people on XDA's experience using it holds true. Plus, as Thonney quite rightly pointed out, many (most) of us already do the things it does manually which takes all of a few seconds & costs zero battery.

Xperia U Battery Life issues

Hello guys,
I flash twice my Xperia U to ICS and I done it well. At frist one, i made without reset factory and the second one with reset factory.
In both cases I got the same problem.
The ICS is draining battery life hard, even in stand by. No mater what, It consumes about 25% for each 4h. Using hard or using nothing.
I instaled GSam Battery Manager and it says its Kernel and Android OS.
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When I used gingerbread, my battery lasted almost 2 days easily.
Android version 2.3.7. It lasted 41h and still have 19%.
Please, someone can help? I tried everything i know. No matter if data or wifi is turned on or off, it will consume lot of battery. I tested.
It seens impossible to reach 24h in this situation.
Same here
New ICS su.....
I'd uninstall the task killer and battery defender to begin with, they will drain your battery like crazy.
Sent from my LT26i using Tapatalk 2
Try using titanium backup
Freeze all the applications and services which you are not using..
If u do a thorough search in the forumyou wil find the list of services which are safe to freeze
Set maximum cpu usage to 200mhz when screen is off..
drvijayanand said:
Try using titanium backup
Freeze all the applications and services which you are not using..
If u do a thorough search in the forumyou wil find the list of services which are safe to freeze
Set maximum cpu usage to 200mhz when screen is off..
Click to expand...
Click to collapse
Does it need roots this set to 200mhz? ty
today ICS arrived my country and I don't thing upgrading according to your words.
SamFortal said:
Does it need roots this set to 200mhz? ty
Click to expand...
Click to collapse
Yes definitely u need root
I'm not using my U yet, got a sim in it, but still using my old phone for now. I'm running ICS and am getting 12-15 hours battery with less than 10 minutes use. The rest of the time it's in standby, there's a pretty bad battery bug, I've not figured out what causes it. On GB I was getting 15hours medium use (~3 hours) and would still have 40% battery left. Battery info is showing it as awake the whole time it's on standby.
My phone`s original battery lasts for one day in normal use. I bought a 2680mAh battery in eBay and now I can use my phone all day long without any problem.

Battery drain

I'm on viper4g my battery life on stock kernel has always been good on jellybean typically still have well over 50% by the end of my day just using my phone intermittent browsing Xda on my break at work or what have you. The other day this battery drain kicks in and I couldn't find a runaway app or anything that had change significantly bring it about. I heard about this app gsam battery monitor and have been using it only problem is the percentages are going way over 100% for phone signal I can't make out what the issue even is. From my understanding having a high percentage for screen is good since that means the power is drawing primarily from the display being on as oppose to data or radio having drain when you are not using them.
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Are u in a spotty area?
Sent from my EVO using xda premium
I had the same problem today. Also on viper4g, running custom kernel. Yesterday I ended the day with 1 day 4 hours on one charge. Today my phone was dead in 8 hours. Tried restarting it a couple times when I noticed the battery was dropping quick.
luigi311 said:
Are u in a spotty area?
Sent from my EVO using xda premium
Click to expand...
Click to collapse
My house gets a weak signal but that hasn't ever been a huge factor...when it drains it does even when I'm working in town where there's good reception.
Varekai said:
I had the same problem today. Also on viper4g, running custom kernel. Yesterday I ended the day with 1 day 4 hours on one charge. Today my phone was dead in 8 hours. Tried restarting it a couple times when I noticed the battery was dropping quick.
Click to expand...
Click to collapse
Strange wish I could pinpoint what happened, it appears I'm back on track now but I'm weary of phone signal % creeping back up near or over 50%
I had the same problem when i was running viper a couple of weeks ago and i just switched to a stock rom and knock on wood my battery lasts me the whole day.
Well vipers Rom isn't built to hold a charge for along time what they emphasized on was the ability to customize just about everything which seperates it from the rest.
Sent from my EVO using xda premium

Anyone else experiencing high battery usage by Cell standby?

I've just switched to the Z5C from Moto X 2013 and I'm still experiencing high cell standby battery usage. I had the same problem on my Moto X after upgrading to 5.1.1.
Interestingly, though, last month I went to Japan (with my Moto X) and cell standby didn't appear in battery usage at all while I was there, and made a huge difference to battery life.
So I'm wondering if it's somewhat dependent on your carrier. I'm with 3 in the UK.
See screenshot. SoT was 1hr 20 minutes.
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Hopefully this problem will disappear on Android M.
Even if you restart ur phone?
Sent from my iPad using Tapatalk
Yes I've tried restarting, disabling a bunch of stuff. Nothing seems to make a difference.
Yes, I'm on T-Mobile in the USA, and my cell radio eats tons of my battery. I came from a Galaxy S4 and Droid Razr HD expecting better battery life, and the Z5C is one of the worst devices I've owned in terms of battery life. Used 2% in literally a minute earlier today with screen @ 10%, Wifi/Location/Bluetooth off and running like one app (Instagram). I typically burn through 40-50% of my battery with one hour of screen on time per day. There was one day when it had great battery life, but that's it. Hoping the new firmware fixes it.
I'm having low LTE signal with the Z5 Compact, but surprisingly the battery life (and internet quality) seems to be not affected by this.
I think I had a little more signal strength with my old Nexus 5, but that phone used to spend much more battery at low signal.
I still need to test this with HSDPA signal. But at least with LTE I don't have battery drains. (I mean my battery stats are "red/orange" because of the bad signal, but still have excellent battery life).
Now If I enter to a bar or a place with 0% signal, the battery drains pretty fast, but that is normal in all cellphones.

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