[Q] exsessive screen drain? - T-Mobile, Samsung Galaxy SIII

galaxy s3 / exajoule rom / underclocked at 1ghz
i use cpusleepr, android assistant and rom toolbox apps
also flashed snapdragon cpu editor and have it in powersave mode
unplugged phone around 10pm at 100 % left it alone til 6 am
phone was now only at 97 % !!!
used phone for a little but saw it drain fast
so i basically left it alone during work
so end of day comes i got 2 1/2 hrs screen and about 17 hours total on battery
screenshots attatched - dead trigger only had 27 min and poweramp only had 10
i think i got everything covered??
wifi data sync gps all turned off w/ brightness at around 40 %
please help !!!!!

bodom_hc said:
galaxy s3 / exajoule rom / underclocked at 1ghz
i use cpusleepr, android assistant and rom toolbox apps
also flashed snapdragon cpu editor and have it in powersave mode
unplugged phone around 10pm at 100 % left it alone til 6 am
phone was now only at 97 % !!!
used phone for a little but saw it drain fast
so i basically left it alone during work
so end of day comes i got 2 1/2 hrs screen and about 17 hours total on battery
screenshots attatched - dead trigger only had 27 min and poweramp only had 10
i think i got everything covered??
wifi data sync gps all turned off w/ brightness at around 40 %
please help !!!!!
Click to expand...
Click to collapse
It doesn't make a huge difference what CPU editors you use, the screen is always going to be the biggest drain on the battery. Also, a 3% drop when you were sleeping from 10-6 is good enough.
Games like Dead Trigger will destroy your battery because not only are you using the screen, you are taxing the CPU/GPU as well. All in all your screen on time could be a little bit better, but considering you played at least half an hour of Dead Trigger and listened to music it isn't the worst thing in the world.

Related

What's your battery life like?

For me, with Overclock.. it's EXCELLENT! I can have it in standby but still have background data going (push gmail, twitter apps, etc.) for days at a time and still have some juice left.
Just today with some admittedly light usage (but I did use it) I had battery use time of 12Hrs with over 70% left.
I'm using setvsel @
35 @ 400MHz
50 @ 800MHz
65 @ 1200MHz
CPU Icon is set to refresh every second and it's supposed to cap at Vsel 2 @ 10%. It's as stable as ever.. been running like this for weeks now. I'm taking note of how much I appreciate the excellent battery life I get because my Vibrant has been getting really bad lately.
Running Barebones 1.3 with
19 @ 300Mhz
35 @ 600MHz
52 @ 1000Mhz
Battery Life is excellent - more than 48h without recharging is no problem.
I get 2 days of standby with heavy texting,surfing over wifi,calling and some gaming. DEFY battery performance is one the best amongst all Android phones.
el*Loco said:
Running Barebones 1.3 with
19 @ 300Mhz
35 @ 600MHz
52 @ 1000Mhz
Battery Life is excellent - more than 48h without recharging is no problem.
Click to expand...
Click to collapse
Undervolting your cpu can harm your hardware real badly. I've had my defy stopped working and shut down completely in the past so i won't recommend you OC or UV
EDIT: tho i still undervolt but 19 vsel is too low for 300 mhz, raise it upto 26 or so
Yes, 19 vsel maybe too low, at least in my case. When I ran the stability test, anything less than 24 would hang the phone after some 10 minutes. 24 is fine in my case but I set it at 26 to give a little more juice.
LOL. Why the hell, should undervolting harm the cpu? Undervolting improves your cpu's lifetime, instead! Less voltage means less stress (heat) and less leak currents for the cpu.
Well, it's true that you might have some instability issues, when the voltage is too low. As soon as you experience so, you can raise the voltage a little, until you have a stable cpu. I've been using undervolting for my PC's CPUs for several years.
PS: I'm on [email protected], [email protected], [email protected]
Never had any problems with my settings, some in this forum use even lower voltages.
mine is
[email protected]
[email protected]
[email protected]
I use wifi quite a lot. But still the battery backup is ok compared to my previous phones!
Running on Pays 5.0
[email protected]
[email protected]
[email protected]
I have to charge every two days.
running on pay 3.1
setvsel:
350/22
700/38
1100/56
48h no problem, record is 80h on moderate use
The battery life on the Defy is absolutely amazing.
I can easily get between 2 and 3 days of normal usage and somewhere in the region of 4-5 if I use it very little.
I reckon if I switched off 3G, had the brightness down as low as possible and generally tried not to use the phone much, I could push a week.
Sadly, my Defy is 'in the shop' just now, damned earpiece.
What do you guys run on the background? I probably able to get 1.5 days on normal usage. Even after charging and no usage, I lose about 10 % after an hour or so.
lanfearxt said:
What do you guys run on the background? I probably able to get 1.5 days on normal usage. Even after charging and no usage, I lose about 10 % after an hour or so.
Click to expand...
Click to collapse
It is impossible to get 1.5 day if defy uses 10% for 1 hour standby. Defy rounds 95% to 100%, and 94% to 90%. So it is possible that an apparent 10% drop is actually a 1% drop. You may install Motocharge to see the battery in 1% increment.
I'm happy to hear everyone getting excellent battery life. The DEFY is a truly unique Android phone.. I'm just afraid that us stateside won't get devices like this because of AT&T... the Bravo is a step below the DEFY just because it doesn't share the same faux-rugged water resistant build. I'm glad T-Mobile picked this one up, overclocked it's only a bit slower than my Vibrant in most operations.
Well I did a Quadrant benchmark 'standoff' with a colleague of mine which has a Samsung Galaxy S [EU version of the Vibrant] and I beat him with over 250 points [the Galaxy S did 975, my Defy did 1334], both running Froyo and the Defy being non-overclocked.
I've also noticed that his Galaxy S tends to hang & stutter from time to time. Regarding battery life, he carries his charger with him at all times, I do not, 'nuff said.
I also get ~1.5days of battery life.
I'm able to squeeze more than 80 hours of usage on a single charge running PaYs 5.0. Light to moderate use of WiFi/Data/GPS/BT, no background syncs and most apps firewalled except through WiFi.
SetVsel:
18/300
32/700
58/1100
ABC_Universal said:
It is impossible to get 1.5 day if defy uses 10% for 1 hour standby. Defy rounds 95% to 100%, and 94% to 90%. So it is possible that an apparent 10% drop is actually a 1% drop. You may install Motocharge to see the battery in 1% increment.
Click to expand...
Click to collapse
i used circle battery widget and it does shows 1% increments. after 90%, it slows down in terms of usage.
i also forgot to mention that my defy sometime runs pretty hot at 35-38C, which i think accelerates the discharge
what about autobrightness? if is set it on, the battery drains much faster.
For me, with undervolt (800/46;600/30;300/18) I can use my phone to make calls, send sms, surf the web, run some apps, and run one a two games.
After 24h of that usage, I have 50% remaining.
a strange thing happened to me (sorry for my English):
Yesterday I installed the camera 360 that did not work it gave some error. Last night when I went to sleep (1-1.30) had 50% battery, in the morning (7.30-8) phone was dead. I put the phone to recharge, from 11 to 3 o'clock phone has reached 30% of battery so i put the phone to recharge again. Until 10 pm the phone has reached again 30% of battery so I decided to give him a factory reset. With 30% i did 100+ app backups with titanium pro and I gave factory reset, after the phone restore from factory reset surprise the battery show 60% ??? I did restore 100+ app and battery show 50%, I played about a half hour and still 50% battery??? what the hell happened??? 360 camera app has to do with rapid battery discharge???
- I use advance Task Manager droidwall, light <10%, original rom only rooted
- anyway Battery discharge I think is caused by the signal GSM of my operator's.
- anyway in the night i decided to kill the traffic and by that the battery shouldn't discharged hardly over night. right?
(Q) sometimes the touch screen it freezes in games so I have to put the phone in standby and come out of standby, and then the touch screen works again ... this happens to you to?

[Q] how the heck are people getting 22h of battery life?!

how are yall getting 22 hours of batter life lol
i bearly get 15 on a good day!
If yall could please post the settings you are using.
much appricaited and i will hit thanks to everyone!
the biggest part of battery life is your personal usage and what type of area you live in. If your phone is constant switching between edge/3g/H, your batery will drain fast. I can get over 12 hours battery life at home but when I'm at work I can't make it an 8 hour shift without charging
shortened .... there is a lot more than set up
I get almost 2 days of battery life ( 1day 20 hours). You must be rooted. This are steps you need to take:
1) Recondition your battery, 2) Flash a good kernel (I use Faux's) 3) use a CPU manipulator app like SetCpu, System Tuner, Fauxclock, etc and set it to Conservative and default Voltage settings 4) Be smart about your usage--use wifi as much as possible, and reduce screen brightness. If you stream Netflix over 4G or play Asphalt all day then your battery life will suck.
quest4fire said:
I get almost 2 days of battery life ( 1day 20 hours). You must be rooted. This are steps you need to take:
1) Recondition your battery, 2) Flash a good kernel (I use Faux's) 3) use a CPU manipulator app like SetCpu, System Tuner, Fauxclock, etc and set it to Conservative and default Voltage settings 4) Be smart about your usage--use wifi as much as possible, and reduce screen brightness. If you stream Netflix over 4G or play Asphalt all day then your battery life will suck.
Click to expand...
Click to collapse
did you underclock at all?
and what kernel are you using?
If you'll see peoples screenshots, they barely touch the phones at all...
On jugg 4.1, faux 007r2, get about 1% drain/hr when idle with 4g on.
Sent from my SGH-T989
hamdroid94 said:
did you underclock at all?
and what kernel are you using?
Click to expand...
Click to collapse
I use his latest kernel 0.0.6u found here: http://forum.xda-developers.com/showthread.php?t=1372690
I dont underclock. I use the default settings that come with the app. I dont have time to play with overclocking and underclocking to find the sweet spot. Default works good enough for me.
mettleh3d said:
If you'll see peoples screenshots, they barely touch the phones at all...
On jugg 4.1, faux 007r2, get about 1% drain/hr when idle with 4g on.
Sent from my SGH-T989
Click to expand...
Click to collapse
i use that rom/kernel combo and if I just use my phone as a time piece I drain about that 1-2% an hour..... under light use I drain about 8% an hour.... under heavy use I drain like 13%. That is using my definitions of light and heavy use
As stated above and additional the way you use your phone. What you have installed..what kernel you are using. Stock/hacked kernel(which helps battery life)..believe it or not you can get 16 to 18 hrs on stock kernel. I've tried it. Tip.. Uninstall / Freeze what you don't need. Decrease brightness. Clear ram/cache.. Calibrate your battery. Turn it off let it charge till 100% remove the battery from the phone wait like a minute. Put the battery back turn phone on. Plug charger wait till 100%. You should be good.
Ooh also check if its leaking or bulky which signify bad battery.
Sent from my SGH-T989 using xda premium
try to install juice defender (free one), it works for me and i am rooted stock using the current faux kernel. juice defender really helps my battery to last 20hrs+
hamdroid94 said:
how are yall getting 22 hours of batter life lol
i bearly get 15 on a good day!
If yall could please post the settings you are using.
much appricaited and i will hit thanks to everyone!
Click to expand...
Click to collapse
if i turn off GPS and bluetooth, and WiFi, i get a whole day of use
if i keep those on, i get around 18 hrs of use on a single charge
more details in the original topic http://forum.xda-developers.com/showthread.php?t=1301609
Also im sure some said this but you can download "no wallpaper" from the market and it sets your wallpaper to a true black. helps a whole bunch
blchff04 said:
Also im sure some said this but you can download "no wallpaper" from the market and it sets your wallpaper to a true black. helps a whole bunch
Click to expand...
Click to collapse
Good tip about Black wallpaper. It does help with battery. I take a closeup picture of a black object ( I use my black leather couch) and save it as a wallpaper.
Screen at lowest brightness and barely using it . I have had 38 hours of battery time but in reality if I use it so that the screen is on much then you get about 6-8 hours. Some people say yhey use heavily but they describe playing music which doesnt require the screen being on.
Also if you are in the area where it switches edge to 3g then the constant change will drain your battery. Stay in a strong 3g area no blue tooth no wifi it will bring your battery usage up. I hit 19 hours on full wifi no bluetooth and maybe 30 minutes of talking , 50 sms or so. The main issue is can you go between outlets, if you can then the phone is doing its job. I have a phone charger at work at at home and during the time its not plugged in (road trips) i can get 12+ hours and thats enough time to go between chargers.
Bullet 2.9b + juice defender. 20 hours EASY
Sent from my SGH-T989 using Tapatalk
like people has been saying, a lot of the screenshots posted don't show how long their display time on is (when you tap display in the battery usage). I think this averages around 3 1/2 to 4 hours display time on (varies on settings). 4 hours display on is extremely good.
Question: i don't know why but my battery usage graph likes to reset itself and only show my usage AFTER it drops from 100%. For example, right now under the graph it says 2hrs 50mins... but on top it says 3hrs 43mins. and yes im pretty sure i've had the phone unplugged after a full charge at 3hrs 43 mins ago... Does this happen to anyone else?
I got 1d 19hrs running beast mod 4.2 setcpu oc'd to 1.8/ondemand. 50% screen brightness with moderate usage.
Teo032 said:
like people has been saying, a lot of the screenshots posted don't show how long their display time on is (when you tap display in the battery usage). I think this averages around 3 1/2 to 4 hours display time on (varies on settings). 4 hours display on is extremely good.
Question: i don't know why but my battery usage graph likes to reset itself and only show my usage AFTER it drops from 100%. For example, right now under the graph it says 2hrs 50mins... but on top it says 3hrs 43mins. and yes im pretty sure i've had the phone unplugged after a full charge at 3hrs 43 mins ago... Does this happen to anyone else?
Click to expand...
Click to collapse
I believe the graph only gets updated whenever your battery percentage drops. In your example above, the phone had been staying at the current percentage for almost an hour, which is a good thing.

Phenominal batt life just from stock ANYONE ELSE?

Took a gamble on this device not Initially liking the sealed batt idea.
Well htc did something right for a change I'm getting 6 am to 11pm battery life on heavy use stock rooted.
Def iphone comparible batt life.
Maybe its a well tweaked kernel
Maybe htc new they had a one shot chance to get it right "being sealed unit"I dunno
But pleased with it for sure,, it doesn't drain in front of your eyes like every other htc device does.
I remember evo would drop 15% after first ten min.. as did most htc phones not the hox
ANYONE ELSE SEEING SAME?
Sent from my HTC One X using XDA
My One X isn't rooted but I have exactly the same as you.
Today I've played all day with the rom and wifi + IM enabled from 0600am till 1400pm and still I have 50% battery. I'm very satisfied with this result.
Yesterday I was listening to music with my BT stereo headset for about an hour and only 8% battery it took. The musicplayer I use is PlayerPro and I kept the screen on all the time.
Another program that can save a lot of battery if you configure right is Profile Scheduler+
I think it's the choise of apps plus the more you charge the better it gets, because at beginning when I bought my One X I was worried about the battery but now it's ok.
Yes all I know is I charge one of two ways I toggle data off before charging or I charge hox off completely.
Set the screen time out to 15 sec
I believe wifi usage helps also all in all trust me I use both android and iphone not to debate the two but this phone seriousally has same batt life quality
Maybe its hit n miss I don't know
Ill be trying a tweak made for the screen brightness its a zip file that has the brightness framework tweaked which is suppose to even further better the batt life
Sent from my HTC One X using XDA
What sort of screen time are you getting, to last from 6am to 11pm I'd only be able to use 1.5 hrs max...that's medium usage for me. 3 hours screen would need charging by 7pm I rekon
Sent from my HTC One X using XDA
dannysmith43 said:
What sort of screen time are you getting, to last from 6am to 11pm I'd only be able to use 1.5 hrs max...that's medium usage for me. 3 hours screen would need charging by 7pm I rekon
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
i can get 12-13 hours with 3-4 hours screen time.
Wish I could say the same myself, mine drains around 1% a second with the screen on just browsing the internet, thats with a custom rom and kernel and manual brightness
I must of got one with a crap battery xD
well take it easy there
right now I had my device with WiFi on for one hour screen on and 4 hours since charge, still 75% which us great
but let's use Tegra3 or the quads in THD games or Antutu, n it will deplete like crazy
Getting fantastic battery on mine as well here is yesterdays results!
Phone was used as and when needed!
Text messages, facebook, twitter, web browsing and 5 short phone calls! more than happy.
left house at 8am and never got back till after 11pm last night and still had more that 20% left.
3 hours 44 mins screen time could of got to 4 hours plus easy with the last 20%
100% stock not rooted. Auto brightness.
EDIT today so far 7 hours since unplugged 30 + text messages a little web browsing/twitter/facebook 46 mins screen on time 79% still left.
I've been trying Franco's Kernel recently. Prior I was running ARHD 6.0 which is in essence a more efficient stock and I think i was getting battery life than I am now. The battery life really is great. I was getting home with 3hrs 30mins of screen time after being out for over 12 hours and getting home with 30% battery life still. Got the screenies somewhere. Really is a great battery life. So much better than the Desire HD I had before!
This was before my results -
Insertcoin v5.x.x
Eternity Kernel by kholk
Browsing for a solid 3 hour (plus a couple of text and calls) + 1 hour using gameboid and still 12% left to listen to music. Was travelling!

[INFO] SGS2 T989 current consumption tests

I'm not sure if this would be of an interest for general public but those who like numbers can skip "OMG this/that SuperBattery/ROM/app let my phone run forever" statements.
I had read somewhere about similar testing for other phones (such posts are very rare). So I was curious to do such tests for my T989. And here we go:
SGS2 T989, ICS stock rooted/debloated ROM.
No Juice/CPU keepers/defenders/sleepers etc.
All syncs are manual.
All tests are done with dark background at 20% brightness if not otherwise stated.
Most of the time current jumps up and down so some results are with Low/High mA range.
Cell signal was -84dBm (pretty good 4 bars).
CPU was at default range 384MHz -1.5Ghz, ondemand.
Anker 2200mAh battery was at 80% - around 4V. When voltage goes down, the current would go up but I didn't bother to calculate in Watts instead because knowing ballpark in Amperes let you calc budget easier.
Deep sleep test.
In deep sleep,current stays below 10mA some of the time but every 5 sec jumps to 40/50mA, every 15 sec to 150mA. So, something is running on background giving an average of 11mA (somewhere around 0.5% of charge per hour).
If I put phone in airplane mode then there would be no jumps and average current will be 3/4mA. Over 10 hours (overnight) phone would loose only 1-2% vs. 5% when not in airplane mode.
Interesting, my previous phone SG S 4G had low current 2/3mA even when not in airplane mode. Well, anything running/looping on background (like sleeper script) would only consume more energy.
So, if you don't need to pickup calls at night - your best battery savior is an airplane mode... otherwise just put phone on a charger.
AMOLED Screen brightness test was done in airplane mode, idle:
Dark background 20% - 80/90mA, 50% - 110mA, 100% - 130mA
White background 20% - 120/130mA, 50% - 170mA, 100% - 250/270mA
This should give you around 10 hours of screen time if you say just reading white text on black background during boring intercontinental flight.
GSM voice call screen off - 280mA, screen on (speakerphone) - 350mA
(So basically, I can talk non stop for 2200/280 = 7 hours straight, not saying that I would do it )
Market apps update on WiFi - 250/300mA
SpeedTest WiFi - 450/500mA,
4G - 600/900mA (900 most of the time when uploading) (actual 4G speed was around 18Mb down and 5Mb up)
Everybody saying "too much 4G data will kill your battery" - but how much is to much? We can see that 2200mA budget enough for 2200/900 = 2.4 hours of intensive 4G usage. (There is some CPU part in it too)
And my cell signal was pretty strong, so wicker signal would require even more current to get your bits back and forth to the cell tower.
Anyway, in my case 4G requires double vs. WiFi.
CPU stress test 1.5GHz (364 Native Benchmark) - 570/600mA,
1.3GHz (402 Native Benchmark) - 460/480mA,
1.0GHz (506 Native Benchmark) - 350/390mA
You can see with performance goes power consumption... lowering from 1.5 down to 1.3GHz can save you around 120mA...
NetFlix playing through WiFi - 200/300mA, 4G - 240/600mA (600mA when loading buffer)
So, you can expect about 2200/300 = 7 hours of NetFlix from one charge.
Pandora, screen off, 4G - 70/350mA (350 when loading buffer 1/5 of a time)
Google Music screen on, local - 150/200mA, WiFi - 300/340mA, 4G - 500/700mA
I think Google Music buffering more then Pandora and I was not waited long enough... GM should consume about the same as Pandora.
Dice MP4, HW decoder, local video - 150/200mA
Google Map idle WiFi - 250mA, with GPS on - 350/400mA
Game Quell Reflection - 400mA (all the time)
Angry Birds - 250/350mA
Well, here are some of my screen shots as an illustration. Enjoy.
So you are saying all these battery savers are making things worse?
Here's mine with AOKP ICS Eugene CPU sleeper and TDJ kernel
Truth is battery life varies hugely, with usage and app setups.
Sent from the pink Unicorn from the Darkside.
I am trying to show that with the given battery budget it's up to user how to spend it.
Knowing how stuff works (at least in general ) allow to plan actions.
Speaking about CPU sleeper - it loops in background (already not good), it's trying to put CPU1 offline regardless what kernel scheduler think about it meaning next moment kernel would wake up CPU1 back if needed, so in next 2 sec sleeper script would try to put it off again and so on and so on....
Do you really need those intensive background processes running? Like Google++ etc. - if answer is Yes then CPU script is counterproductive, it's fighting against your wishes, spending even more energy... if answer is No then you better make sure your phone is clean of such rough apps, so it would go to deep sleep on it's own...
Deep sleep is not exactly up to Samsung specs on this phone - 0.5% per hour - meaning 200 hours in standby with excellent signal and with 2200mA Anker battery... only in airplane mode T989 got 3/4mA. So, could sleeper scrip help in this situation? Ask the author. Because when I ask him he just congratulated myself and that's it.
Band aids are always less effective then the cure of the root problem. Band aids could/would produce side effects (like something stopped working).
If you don't need dual CPU power - get yourself a single core phone... or lower CPUs frequency. According to my tests decreasing CPU frequency by 15% will save you 25%.
If you don't want to flip airplane mode by yourself then get apps which will do it for you but there might be some other gotchas...
Just try to get to the bottom of the problem and avoid the idiocracy "when the plants crave for... you know what".
LoopDoGG79 said:
Here's mine with AOKP ICS Eugene CPU sleeper and TDJ kernel
Truth is battery life varies hugely, with usage and app setups.
Sent from the pink Unicorn from the Darkside.
Click to expand...
Click to collapse
Looks fine. 20% in 12 hours with light usage. Test idle overnight with and without CPU sleeper to see if this is placebo effect.
I just did some tests on endurance. 4 days with 1 hour of talk and 1 hour of screen time and still have 28% to go. Or previously I did 7:40 of screen time with 40% battery still to go...
Someone asked what is my settings, well here we go:
1. I don't use automatic sync anywhere. When I need something I just hit manual sync.
2. Most of the time I use fixed brightness about 20%. (sometimes I set more when I need it)
3. Observe system behavior periodically, especially when installing new app, using OS monitor or just simple terminal (top 10 command). Are there any processes running without any reason? If so, deal with them...
4. My "Screen On" CPU frequency range is limited to 1.3GHz. (usually I don't play games on a phone, I've got a tablet for it). This will cap max current and will save around 120mA.
5. "Screen Off" CPU is limited to 0.9GHz - for same reason, no need to use 1.5GHz CPU for background tasks.
6. If there is spotty 4G - better switch it Off. Sure this will delay reports on you going from your phone to Google servers but I don't care about it.
7. Use WiFi instead of 4G - it costs at least two times less for you battery.
8. Switch WiFi Off when non needed. Idle WiFi will not consume much more mAmps but will set internal connection status = DISCONNECTED which will prevent different processes wakening up and transmitting.
9. Overnight, I prefer use airplane mode... two reasons: I don't like to wake up due to some "wrong number" calls. Second, deep sleep mode is still consuming around 11mA and airplane mode is just 3mA. So, instead of 4% of charge per 8 hours my phone uses just 1%.
(FYI: Eugene told in other post that his best overnight idling was about 10%)
10.Last but not least by using dark background and reading white fonts on black screen can save another 50-70mA. Very handy if you like read a lot. That's how I've got 7:40 hours of screen time with 40% still left in battery.
When you look at your time and compare what you were running/doing - keep in mind that there will be about 80% of battery capacity available. (Fuel Gauge chip will show 0% when there is still 3.45V) Manufacturers rate batteries discharging them down to 3.3V.
If you want to post your results, please include at least screen time along with type of usage and other basic settings. Otherwise such posts would be useless in terms of objective comparison different ROMs and settings.
i got my telus refubrished phone few days ago, i am getting around 12 hours on factory settings, i didnt change them. i use the phone for calling emails and news.
is that normal, if not, could it be the battery
omarnajat said:
i got my telus refubrished phone few days ago, i am getting around 12 hours on factory settings, i didnt change them. i use the phone for calling emails and news.
is that normal, if not, could it be the battery
Click to expand...
Click to collapse
Well, to say if your battery needs to be replaced you either have to test it on capacity tester or indirectly in your phone with some static (and well known load). Read the first post, choose benchmark/load, run it and then calculate your battery capacity approximation.
If your calculated capacity much less then 80% of rated one then probably you want to replace battery.
You may try to reset Fuel Gauge chip by removing full charged battery for several minutes from phone and try those tests again.
You can check for calibration errors by comparing voltage and what % Android reports.
100% - you should see 4.2 - 4.1V
50% - you should see 3.8-3.7V
1% - you should see around 3.45V
To answer on your other question "if this normal?" - one would need more information. Or you can analyze your usage pattern yourself based on metrics I provided at first post.
Really interesting post, thanks for taking the time to document and write this up. This is the sorta thing that is really great on XDA.
I went on a one week campout a few weeks ago. Put phone in airplane mode and unplugged around noon Monday, didn't plug it in again until around noon Saturday. Airplane mode the whole time, but I was also using Eugene's CPU Sleeper app and AOKP milestone 6 (July 15th release). Used phone for camera throughout the week, some very light reading and more than a few hours of gps on a long hike. Didn't think to take a screenshot though, so I can't back my claim. My battery was flirting with 0% by the time I plugged it in though, but that's still ~5 days. If I didn't use gps I could have easily gone much longer. Gps was the biggest battery killer.
Airplane mode is the best battery saver there is, but I like to be able to receive phone calls so I just let AOKP turn data off after about 10 minutes of screen off. Saves a lot of battery right there.
I have some crappy metro PCS
huawei ascend that I don't use at all. I turned it on airplane mode and left it for about a month and it was at 27 percent when I picked it up yesterday. I was running cm6 and I think I under clocked the prosessor running at 400mkz max
It has a 1500mah batt
my s2 has a extended 3650 mAh bat
Sent from my SGH-T989 on Jelly Bean goodness!
Edit: I just carry around an portable charger with me. I get about a week on my phone but you never know whats gonna happen
Updated to ICS 4.0.4 and looks like deep sleep got improvement.
Last night battery lost just 2% instead of 4% as expected for 8 hours on previous rom.

Tips for battery drain

Hi all. I bought an Xperia S and I'm very satisfied But I have a big problem : battery drain! I disabled autosync, bravia engine, underclocked cpu to 1188 mhz, set the screen brightness to around 25 %. I use an app which is similar to Juice defender, and it sync my push notification every 15 minutes for 2 minutes. I flashed [email protected] Rom, but the battery drains too fast.. even if I set the phone to drain not too fast. What can I do ? Are there mods or some scripts which can help my battery to last longer? I don't want to unlock the bootloader because of the warranty. What can I do more than what I did ?
Follow these steps:
1. Use your battery to 0%
2. Charge it to 100%
3. Go to CWM > Advance
4. Wipe Battery Stats.
5. Fix Permissions (This may take sometimes).
6. Again use your battery to 0%
7. Again charge it to 100%
pharix said:
Follow these steps:
1. Use your battery to 0%
2. Charge it to 100%
3. Go to CWM > Advance
4. Wipe Battery Stats.
5. Fix Permissions (This may take sometimes).
6. Again use your battery to 0%
7. Again charge it to 100%
Click to expand...
Click to collapse
I Don t think my phone need a calibration, but I will try
thanks for the tip, my battery seems to drain faster after installing a custom rom, seems that it needs a recalibration again
Google devs said that battery recalibration does absolutely nothing to increase battery life. XDA has some write up about it on a topic about placebo rituals.
What I noticed in the beginning, the battery drains faster, but as you drain all the way and recharge it lasts longer with more use.
r0bot said:
Google devs said that battery recalibration does absolutely nothing to increase battery life. XDA has some write up about it on a topic about placebo rituals.
What I noticed in the beginning, the battery drains faster, but as you drain all the way and recharge it lasts longer with more use.
Click to expand...
Click to collapse
I hope.. because if I use it for 15 minutes in wi fi, with brightness at 20 %, i lose 5 % of battery..
I noticed also that if I leave my phone in flight mode, cpu spy reveal 97 % of deep sleep, and that's good, but my phone in 7 hours ( during night ) lost a 5 % of battery
Mikyno said:
I hope.. because if I use it for 15 minutes in wi fi, with brightness at 20 %, i lose 5 % of battery..
I noticed also that if I leave my phone in flight mode, cpu spy reveal 97 % of deep sleep, and that's good, but my phone in 7 hours ( during night ) lost a 5 % of battery
Click to expand...
Click to collapse
I'm in my first week of owning the device and it's gotten a lot better. First two days it was like that. If it doesn't get better try contacting Sony and maybe getting it exchanged.
r0bot said:
I'm in my first week of owning the device and it's gotten a lot better. First two days it was like that. If it doesn't get better try contacting Sony and maybe getting it exchanged.
Click to expand...
Click to collapse
WT* in 2 hours, 10 of wi fi browsing, 15 of maps navigator, a call of 5 minutes, an sms, a chat of 2 minutes on facebook, and it drained 25 %! I want to throw my xperia s away! I'm very disappointed! Sony lost a fun.. I will return to a samsung phone as soon as possible.. My galaxy wonder last 18 hours with CM10, using it the same as xperia s ! F*ck!
You know Xperia S is dual core and has a 720p screen, right?
Second, there must be an background app killing your battery. Check all of them.
Also, Bravia Engine doesn't kill battery, unless you stay on Album app the whole time.
Felimenta97 said:
You know Xperia S is dual core and has a 720p screen, right?
Second, there must be an background app killing your battery. Check all of them.
Also, Bravia Engine doesn't kill battery, unless you stay on Album app the whole time.
Click to expand...
Click to collapse
I know, but the battery is ****ing ridicolous, isn't it ? Second, there isn't any app which drain my battery. I checked it with cpu spy and betterbatterystats. I deactivated BE because sometimes I view some photos.
Mikyno said:
I know, but the battery is ****ing ridicolous, isn't it ? Second, there isn't any app which drain my battery. I checked it with cpu spy and betterbatterystats. I deactivated BE because sometimes I view some photos.
Click to expand...
Click to collapse
The time you spent on gallery viewing some photos isn't enough.
Besides, then your phone must have some problem. Of course it will drain, but it can be really good.
Are you sure there isn't any app draining battery?
Sent from my LT26i using Tapatalk
Felimenta97 said:
The time you spent on gallery viewing some photos isn't enough.
Besides, then your phone must have some problem. Of course it will drain, but it can be really good.
Are you sure there isn't any app draining battery?
Sent from my LT26i using Tapatalk
Click to expand...
Click to collapse
Yes.. I'm sure.. I list all of user apps : 100 Doors, Androidiani app, antutu benchmark, asphalt 7, astro file manager, chrome, cpu spy, dead trigger, doodle jump, where's my perry, facebook, fruit ninja, 3g manager (like juice defender), impossible game, jetpack joyride, link2sd, live score addicts, no frills cpu control, quadrant, temple run, whatsapp.. That's it..
Don't know why it drains like that.. I don't want a galaxy W battery life, because they are 2 differents phone, but at least 13-14 hours with a moderate usage.. I can't ever rechearge it after school and during the night..
Timescape is still there? Or sync is on all the time (orv you mentioned a timed sync, didnt you? If yes, how much time to time?)
It's really strange. There are days it lasts the whole day for me.
I usually (not now I'm in vacations, but in normal school days) can use it for the whole day.
Take from the charger at 6:30, WiFi on for 10 minutes to check a few quick things (it auto turns on before, but it is generally on charger still). Then, 15 to 20 minutes of Music on headphones, volume at 6 or so). Some seconds on maybe to change songs.
Then a total of around 20 minutes with the screen on, be it just moving home screens while not having nothing to do, or taking notes, calendar, etc. Maybe 5 minutes of camera. The rest, the phone rests on the table ( I think the cold air conditioned keeps the processor and battery at lower temperatures, so better for speed and draining).
More 15 minutes of songs, same behave as before.
At lunch, I might use it for 2 quick calls (2 min each). More around 20 or 30 min of music, and 15 min of gaming (3D or 2D). Maybe more 5 min of camera. Some days, 15 min of WiFi.
Class again, same behave after leaving home. Notes, camera, calendar, useless scrolling.
I would leave school (5:30 PM) with around 35~40% of battery, enough for more 45 min of WiFi before the battery got to a critical level (5~10%).
Sent from my LT26i using Tapatalk
Felimenta97 said:
Timescape is still there? Or sync is on all the time (orv you mentioned a timed sync, didnt you? If yes, how much time to time?)
It's really strange. There are days it lasts the whole day for me.
I usually (not now I'm in vacations, but in normal school days) can use it for the whole day.
Take from the charger at 6:30, WiFi on for 10 minutes to check a few quick things (it auto turns on before, but it is generally on charger still). Then, 15 to 20 minutes of Music on headphones, volume at 6 or so). Some seconds on maybe to change songs.
Then a total of around 20 minutes with the screen on, be it just moving home screens while not having nothing to do, or taking notes, calendar, etc. Maybe 5 minutes of camera. The rest, the phone rests on the table ( I think the cold air conditioned keeps the processor and battery at lower temperatures, so better for speed and draining).
More 15 minutes of songs, same behave as before.
At lunch, I might use it for 2 quick calls (2 min each). More around 20 or 30 min of music, and 15 min of gaming (3D or 2D). Maybe more 5 min of camera. Some days, 15 min of WiFi.
Class again, same behave after leaving home. Notes, camera, calendar, useless scrolling.
I would leave school (5:30 PM) with around 35~40% of battery, enough for more 45 min of WiFi before the battery got to a critical level (5~10%).
Sent from my LT26i using Tapatalk
Click to expand...
Click to collapse
3g is off when my screen is off and 3g manager switch data on every 15 minutes for 2 minutes.. Automatic sync is off, and I removed Timescape and all Sony rubbish..

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