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Hello,
I have been following these forums for a couple months now, and wow I am impressed. I love this community. I feel like I haven't contributed yet, so I started this thread. Below are my phone specs and my battery success. If this helps you, great! If you can contribute to this thread with your success, please do. If a similar thread is around, let me know; I don't want to take up extra space if I don't need to. My primary goal is for people to share their specs, usage, and battery life with Android. I had my brightness on high and 3g, GPS, and sync on (things you would normally want on all day). Peace!
Specs:
Leo - T-Mobile version
SD - 16GB class 4 (not sure brand, doesn't say)
Radio - 2.12.50.02_2
ROM - 28/7/10 Elegancia V 1.0 Final, Max Sense (T-Mobile version, if there is a difference?)
Android- 03/08/10 shubCRAFT CM6RC2/Froyo/Themed V1.1
Kernel - Cotulla 2.6.32.9#103
Info:
Unplugged at 07:30 am with 100%
Immediately checked email/XDA app for any updates (yep, I'm lame)
Standby for about an hour
Music/web browsing on Train to work (30 min)
Standby for 3 hours
Video playback during break (20 min)
Standby for 5 hours
Music/web browsing on Train home (30 min)
Home for about 3 hours with mix of standby/web browsing
9:10 pm - 15% warning (close to 15 hrs)
I stopped at 15%, because that is my "safety zone" for normal usage.
Anyone else care to share similar stories?
Before sleep yesterday, i have 97% battery, but when i wake up today, the battery left 47% :S 6hours drain 50% battery life only in stanby!!
when i checked background for what was running, Nothing..... maybe the android's screen is off, just it's not really sleep..
Hey guys, it's totaly normal, the actual HD2-Android roms are RC's, these problems will get fixed, just be patient.
My battery expirience:
8:30 - took from charging at 97% and went to work
normal use @ work (sms, googletalk, twitter and facebook)
15:00 - 15% warning
its about half the time from my windows rom, i think at current state of development it ist totaly OK.
And if you use SetCPU you can get a 1% discharge per hour in standby mode, if set up correctly
And what Waldemotor said, it's still in development.
Powermanagment isn't fully functioning, yet.
patience young grasshopper
5:40pm 100% when leaving work, started listening to music
5:55pm Standby for train ride
6:45pm Listening to music
7pm: Stopped listening to music
7-10pm: bit of xda app, checking my ps3 friends to decide whether to play MW2, showed the kids a couple of games
10pm-7am: Standby
7:40am-7:55 - Music before train
7:55-8:45 - Standby
8:45-9am Music
And here I am 09:35 and I have 30% battery left.
maseo said:
And if you use SetCPU you can get a 1% discharge per hour in standby mode, if set up correctly
And what Waldemotor said, it's still in development.
Powermanagment isn't fully functioning, yet.
patience young grasshopper
Click to expand...
Click to collapse
I'm with Darkstone Froyo 1.1 and i sync:
Gmail (push)
Exchange Mail, Calendar Contacts) every hour
Facebook every 2h
Twitter every 2h
I use SetCpu set to 245/245 profile screen off and 998/245 standard profile
I also Use
Juice Defender (paid version from market) :
With this i can plan usage of WIFI/3G :
- U can choose from push up to 5mn every 2h, i don't plan
- U can disable during night my night is from 22h to 7h
- disable if battery under 15%
- enable when i use choosed application in a list form exmple email, browser ... (keep disable elsewhere)
- U can choose automatically enable when screen is ON i don't : i prefer enable with application
Note: it's possible to control CPU too but i don't .. i think setcpu is better
- Wifi may be auto disabled when there's no access point near u
Estrong Task manager
- With this i kill all application except a choosen list when screen is off
GPS is always Disabled
With theses applications and settings i can get:
0% lost during night
and during day, my battery life depends on how much i use applications with 3G or Wifi and ... over all how much i phone
Note :
I've same conf on my Htc Hero ... (Android 2.1 hect sense) my battery life is almost 3 days
With HD2 desire V5 results are not so good
So i recommend :
Darkstone Froyo 1.1 (waiting for next build)
Wirh SetCPU, Juicedefender (paid version on market), and Estrong task manager
JuiceDefender has a free version but wiyh less options but u can try it
U can control battery JuicePlotter : it draws a graph for ur battery consumption and temperature telling u if wifi or APN were enabled.
Hope my contribution will be useful for some people
A+
Jpq
Went to work with a full 100% battery, did a bit of webbrowsing and texting. It was down to 30% within about three hours.
But I'm not fussed. As it's been said, it's still in its infancy. I've done nothing to try and amend it (SetCPU etc). I just have everything running on default settings.
When things drop so far though, I just switch back to Windows if I'm not near a charger.
My 2 cents on the matter
I own an HD2 since last Friday, I think. I found out that it can run Android and I wanted to test it. I spent an entire day with the Android. I started with a full battery, but I browsed the market, installed a lot of applications, listened to some music, even played a few avi files. The battery is drained faster than on WinMobile, but just like it was pointed out here, Android is still in development. The main idea is that I used it a lot and the battery was almost drained in 9 hours (I also stop around 15% too). I used Darkstone Froyo 2.1 build (Dan1j3ls Froyo V1).
- zImage 3/8, Dan1j3ls Froyo V1 (without Sense)
- setCPU enabled (always ondemand between 245 - 998)
- Yesterday 7 am - unplugged with 100 %
- Sync enabled with 3G over the day, some web browsing and playing around all day, measuring
- *#*#4636#*#* -> Phone info -> Menu -> set frequency band to Euro band, afterwards the constant 2G/3G flapping disappeared, switch to 2G only happens, when no more 3G available
- 11:30 pm went to bed, disabled Data overnight -> 50% left.
- Woke up this morning 8 am with several alarms ringing -> still 41% battery left.
With little usage good two days possible!
foxcheng said:
Before sleep yesterday, i have 97% battery, but when i wake up today, the battery left 47% :S 6hours drain 50% battery life only in stanby!!
when i checked background for what was running, Nothing..... maybe the android's screen is off, just it's not really sleep..
Click to expand...
Click to collapse
I left mine at 98% before going to bed and 8 hours later (yes, I slept that long) there was 78% left...
I'm on MattC's build, German Vodafone Stock Rom (1.72...) and 2.10.._2 Radio.
SetCPU activ and Exchange checking for mails every hour...
However, I'm not sure if 20% or 2,5% per hour is good or bad
u can globally underclock ur cpu for better effect, I run mine at 80% clock (main profile)
Im now on my 3rd day of using mattc v1.4.
1st day battery life was SHOCKING (as to be 'expected' (can you expect a shock???) for a RC running off an SD card).
I probably got about 4 hours heavy use from 100% to 10%.
2nd day I set up SetCPU with profiles for 'screen off' and <25% battery, disabled all data except wifi, disabled gps (tried juice defender but didnt find it useful as I never really use mobile data anyways). LEFT SCREEN AT 100% BRIGHTNESS!
This ^^^ helped with battery drain a lot and stopped the huge drain i was getting while the phone/screen was asleep.
BUT on day 2 I got a WEIRD problem:
Tried to set a pattern for unlocking - Put phone to sleep and rewoke to test lock.
The screen came on almost all white with my home screen barely visible underneath the white 'vail'.
I shutdown android and booted into WM6.5.x.
THE WEIRD THING IS THAT BEFORE THE 'CRASH' MY BATTERY SHOWED 49% BUT AFTER A REBOOT IT SHOWED 14%!
Multiple restarts into winmo and android still showed 14%/13%! WTF? I had to start charging again from there.
Now the HD2 wont charge past 91% (in android), untested in WM. I unplugged the USB and replugged numerous times - still wouldnt charge past 91%.
Left on charge overnight (android) and still at 91 this morning.
Been using it quite heavily ~3 hrs on and ~1 in standby today with lots of wifi and batt has gone from 91 to 76%.
ONLY LOSING 0.5 PER HOUR in standby now.
So basically, my battery is going nuts lol.
But so far I'm more than happy with it (considering it running from sd etc etc).
To all devs working on android builds - THANK YOU and keep up the good work.
Anyone else had any battery anomolies like mine?
I also experienced wrong loading behaviour, or maybe it's just the percentage showing wrong.
The following helped for me: Reboot into Windows Mobile, there the battery loading status was display correctly as 100% (also with the status LED glowing green constantly). Then with loading cable still plugged in, boot Android, then in Android the percentage reading was correct again.
really offtopic but anyone care to share how do you choose what to run in the background and what not? I use the task killer app but I kill the apps and they just reapear without me starting them.
thanks for sharing brothers!
can anyone comment on the battery life/consumption with this latest kernal and 384+ RAM ?
im using zimage 08/03 right now with Darkstone froyo v1 and my battery life is pretttty bad...
it will go from "93%" (full, it wont charge over), to about 25% in 4.5 hours..
and this is making NO phone calls and on standby. I have setCPU with the settings from the other thread too
just trying to figure out a good solution
I'm using the CM6 froyo.
Without setcpu and without the Aug 3 zimage, my battery drain was about 12% an hour on standby.
Now, with the Aug3 zimage and setcpu, I have about 6% battery drain per hour on standby.
Win mo: stock Tmo-US ROM. 2.08 radio. (both stock). 16GB class 2 MicroSD.
I always make sure I charge when phone is either off, or in winmo. I never charge the battery on android. I don't yet trust the android kernel enough to charge my battery correctly.
5%/h in standby problem
thesweeney said:
Im now on my 3rd day of using mattc v1.4.
Anyone else had any battery anomolies like mine?
Click to expand...
Click to collapse
Yes.
Not matter what I do, and whatever distribution I'm using there is huge battery drain in stanby mode (~5%/h). I changed ROM, radio, android version (mattc, darkstone, ...). Even used winmo registry tricks.
HD2 (eu), ROM Energy, checked mattc v1.5, shubCRAFT 1.3, NexusLeo v1, ...
But there was a time I had very good results - like 1%/h in standby. Do not know what changed (except changing Android ditribution very often). The other users (a lots of them) has 1-1,5%/h in standby mode, so I'm sure it is possible. There is some kind of setting/mistake or something to discover. For now Android (even running form SD) is capable to have as good "battery results" as winmo.
I will try
- charging in winmo only
- sd format or using another microsd card
- clean Android (without data and additional software)
cw-data said:
- zImage 3/8, Dan1j3ls Froyo V1 (without Sense)
- setCPU enabled (always ondemand between 245 - 998)
- Yesterday 7 am - unplugged with 100 %
- Sync enabled with 3G over the day, some web browsing and playing around all day, measuring
- *#*#4636#*#* -> Phone info -> Menu -> set frequency band to Euro band, afterwards the constant 2G/3G flapping disappeared, switch to 2G only happens, when no more 3G available
- 11:30 pm went to bed, disabled Data overnight -> 50% left.
- Woke up this morning 8 am with several alarms ringing -> still 41% battery left.
With little usage good two days possible!
Click to expand...
Click to collapse
same case for me as little usage (sync email few times a day manually, play few songs for kids, little browsing and market). 2 days with batteryminder. ~ 50% since last charged 1 day ago.
The one that making real different for me is when I used GSM auto (PRL) (in *#*#4636#*#*).
Also auto turn to airplane mode 11:30pm-7:00am for me.
I also applied the sdcard registry changes in winmo. seems this will take some effect also.
Post best Setting for battery life
lemar123 said:
Yes.
But there was a time I had very good results - like 1%/h in standby. Do not know what changed (except changing Android ditribution very often). The other users (a lots of them) has 1-1,5%/h in standby mode, so I'm sure it is possible. There is some kind of setting/mistake or something to discover. For now Android (even running form SD) is capable to have as good "battery results" as winmo.
I will try
- charging in winmo only
- sd format or using another microsd card
- clean Android (without data and additional software)
Click to expand...
Click to collapse
The solution was to
1. I did battery calibration (not sure this task was really necessery) and checked winmo battery drain - to make sure battery is not broken by Android. No, it didn't
2. Charge battery to fulll on WinMo (or turned phone off), boot Android then remove /data/system/batterystats.bin .
Use this commands from Android Terminal (free).
su
rm /data/system/batterystats.bin
Click to expand...
Click to collapse
3. Restart Android (in that moment I had expected 1%/h drain) and use battery till it come empty
Thats all.
Propably, after many android switches (new distribution tests) the battery stats was broken - collected partially in different Android version.
Then finally, after 1 week with 5%/h battery drain problem in standby I have 1%/h in standby again. I think it is standard drain in haret.exe version.
I am really new to android devices.
I got a Rogers moto flipout MB511 (Canada) from my friend recently. The standby time is terribly short. Discharged within 10 hours just standby in an area with good signal strength (-69db, 2G only).
I have disabled background sync, wifi, 3G, used setcpu to use 125/125mhz when screen off, removed facebook account. (I do have gmail account setup) The standby could be even shorter if I don't do things mentioned above.
Tried different roms, like 0.18.4 (This is en.CN rom), U3_01.14.2 (This is a rom without Motoblur, is really fast!), no noticeable improvement. With Powertutor, I haven't found any suspect app consuming too much battery power.
I was expecting at least 2-3 days with phone standby in 2G.
Does anyone have the same issue with me. i am wondering if this is hardware related issue or software issue. I suspect this phone might have current leaking issue. Is there any software can accurately report current?
Any suggestions?
That also arrives at me that do I have to make?
the same trouble to me
I'm guessing it's just a standard effect of how the phone draws power. The guy i bought mine from on eBay included an extra battery with it, for that reason.
But this is definitely abnormal.
Using *#*#4636#*#*, I found the there is some problem with Android system, which holds partial wake lock most of the time. So the phone is not in sleeping state for most of the time.
I don't have data to prove this. I know some of the guys' flipout can last 2-3 days, and they all have data plan (not just something like unlimited browsing, with only 80 port available.). For some of the reasons, I feel this is caused by Moto blur. A lot of blur stuff is put into android system. They might try to communicate with the blur server, which requires SSL and 80 port available. Because my phone doesn't have data plan, communication will fail. During retry, the blur keeps partial wake lock and prevent phone from sleeping.
I got this issue with all firmwares that runs on my phone, including the deblur version. I think even the deblur version has a lot of blur stuff and try to pass back some user data back to moto server based on IMEI.
Try buying a new oem stock battery?
I am pretty sure it is not the fault of the battery. I have 2 stock batteries, standby time is proportional to their capacity.
The issue is obviously the partial lock.
Same here
Battery goes pretty fast even when not using the phone, even worse when using it.
Yeah I'm also experiencing same problems! I'm using the deblur version.
Battery drains like hell! I'm also on 2G, no wifi, no gps, no data sync!
I've checked my battery usage and this is what I got:
Voice calls: 32%
Cell standby: 22%
Phone idle: 18%
Android OS: 16%
Android System: 4%
ZDbox: 3%
Display: 2%
Cell standby, Phone idle and Android OS seem to be quite high. Anyone know why?
Thanks
Hi,
Same sh*t here...
I have better results if I am running the JuiceDefender (extreme profile: data on demand) and SetCPU (profile: on screen off: 125/125) . Note that on the SetCPU the profile options (on the top of the profiles) MUST be checked in order to be active... Unfortunatelly I am stuck to 3G only (feckin three-mobile-UK does not allow to fallback to 2G)
Also, I am running the "Quick Settings" in order to cut off quickly the GPS/data/wifi.
BTW, be sure that the Settings -> Data Manager -> Data Delivery -> Blur Applications is set to "Sync over Wi-Fi Only"
My results so far are :
mobile left the overnight charger arounf 7:30, then after 12hrs (19:00) the battery is around 60% .. all this time just some sms (no calls at all) plus around 10min email check..
cheers
reptakos said:
Hi,
Same sh*t here...
I have better results if I am running the JuiceDefender (extreme profile: data on demand) and SetCPU (profile: on screen off: 125/125) . Note that on the SetCPU the profile options (on the top of the profiles) MUST be checked in order to be active... Unfortunatelly I am stuck to 3G only (feckin three-mobile-UK does not allow to fallback to 2G)
Also, I am running the "Quick Settings" in order to cut off quickly the GPS/data/wifi.
BTW, be sure that the Settings -> Data Manager -> Data Delivery -> Blur Applications is set to "Sync over Wi-Fi Only"
My results so far are :
mobile left the overnight charger arounf 7:30, then after 12hrs (19:00) the battery is around 60% .. all this time just some sms (no calls at all) plus around 10min email check..
cheers
Click to expand...
Click to collapse
three uk are a 3g only network they have no 2g system
all of their handsets have been 3g from the start because of video calling
I´ve got 24h+ Standby time, Deblur + Juice defender + Never make/recive calls with this ****.
i had the same problem. only 6/7 hours tops with juice defender on!
i switched of 3g and now it does 20 percent a day!
must be a firmware issue.
i got deblurred rom, euro.
with rom deblur,setcpu with screenoff freq 125-250 (screenon 125-550mhz),juicedefender free (set screenoff no data,app update freq 30min),10 sms received,15 mins of call,internet navigation about 10min,my flipout is now at 50% of battery (the phone is on by 9.00AM)...
but with this setting and with a more intensive use (20-30 mins of call,10-15 sms,30-40 mins of internet) my flipout goes at 0% in about 12h
Hi,
Its almost 2 months after my last reply here..
My flipout now can stay 48h on standby, and on normal usage (around 50 sms send/receive and 30min of 3g data..) can be stay alive for 1.5 days ..
The applications that I find very usefull are:
SetCPU (I set the phone to be 125Mhz min/max when the Screen is OFF)
DataSwitch ( to kill any data connection)
Autorun manager (to avoid running some apps like Skype)
I also re-calibrated the battery a couple of times (I left it to be completely drained then recharged to 100% and used a util called Battery calibration)
Not bad anyway...
cheers
Has anyone else experience sudden battery drain on their A500?
I have three instances -- one I forget which ROM, one with Taboonay, one with stock ROM (3.1); all with HV kernels (2.2 x 1 and 2.5 x 1) -- where I leave my A500 and return some hours later (not more than 12) with the tablet off and the battery at zero. The battery stats show a slow drain for a few hours, and then a line straight down to zero. The breakdown doesn't show any suspicious app usage (majority is tablet idle), no "mobile data drain" or anything like that.
Anyone else run into this. I've tried a search without any luck.
I am having the same problem on a stock tab.
I have rooted and used Titanium to freeze unwanted apps - bit otherwise it is a standard tab. I suspect that wifi is not turning off even though I have it set to turn off with the screen (airplane mode is always on). I am trying to confirm that wifi staying on is causing this....
In the wifi settings you can choose to
1) leave wifi always on (default) or
2) only leave on while charging or
3) auto off, when display goes off
I'm using the 3rd one, and battery consumption improved!
But you have to wait some seconds after switching on again, until wifi is available.
This isn't slow wi-fi type drain that I'm seeing. It's rapid, from something to zero, straight line down on the battery use graph type drain.
Hopefully, with a change of kernel and slightly less OC'ing, it will disappear...
Hi everyone,
I have used an older version of Hyperdroid over the past few month, which worked very well for me overall. Usually the battery managed to last a couple of days.
However, after I tried some different Android NAND Roms on my HD2 yesterday, I reinstalled the latest version of Hyperdroid (HyperDroid-CM7-Observant-Opossum v5.9.0) and noticed a dramatic increase in battery usage.
It drains about 10% in less than an hour without using it.
- WLAN off
- mobile data off
- Blutooth and GPS off
Androids battery use overview lists:
Display 35%
Cell-Standby - 33%
Idle 29%
Wi-Fi - 4%
There are barely any additional apps installed.
RoperC said:
Hi everyone,
I have used an older version of Hyperdroid over the past few month, which worked very well for me overall. Usually the battery managed to last a couple of days.
However, after I tried some different Android NAND Roms on my HD2 yesterday, I reinstalled the latest version of Hyperdroid (HyperDroid-CM7-Observant-Opossum v5.9.0) and noticed a dramatic increase in battery usage.
It drains about 10% in less than an hour without using it.
- WLAN off
- mobile data off
- Blutooth and GPS off
Androids battery use overview lists:
Display 35%
Cell-Standby - 33%
Idle 29%
Wi-Fi - 4%
There are barely any additional apps installed.
Click to expand...
Click to collapse
Install currentwidget and place a widget on your homescreen. Tell us the battery drain when the screen is off by setting the refresh interval to around 20, leaving the phone to settle in standby for a minute or so and unlocking it and giving the drain immediately displayed (don't wait for it to refresh again) and it should be around 4ma with everything but the phone function itself turned off. Try it in airplane mode as well, here it should be around 2ma. If you mean high drain with the screen on then you're just going to have to live with it unfortunately.
Nigeldg said:
Install currentwidget and place a widget on your homescreen. Tell us the battery drain when the screen is off by setting the refresh interval to around 20, leaving the phone to settle in standby for a minute or so and unlocking it and giving the drain immediately displayed (don't wait for it to refresh again) and it should be around 4ma with everything but the phone function itself turned off. Try it in airplane mode as well, here it should be around 2ma. If you mean high drain with the screen on then you're just going to have to live with it unfortunately.
Click to expand...
Click to collapse
Yes i would definately check sleep drains. But if its when your phone is on, it may also be an update in the CPU governor settings. I would switch to conservative. Especially if you dont game a lot. You can also try changing your CPU voltage levels.
What's your kernel and governor? Any OC? Maybe the kernel isn't allowing deep sleep.
RoperC said:
Hi everyone,
I have used an older version of Hyperdroid over the past few month, which worked very well for me overall. Usually the battery managed to last a couple of days.
However, after I tried some different Android NAND Roms on my HD2 yesterday, I reinstalled the latest version of Hyperdroid (HyperDroid-CM7-Observant-Opossum v5.9.0) and noticed a dramatic increase in battery usage.
It drains about 10% in less than an hour without using it.
- WLAN off
- mobile data off
- Blutooth and GPS off
Androids battery use overview lists:
Display 35%
Cell-Standby - 33%
Idle 29%
Wi-Fi - 4%
There are barely any additional apps installed.
Click to expand...
Click to collapse
did you do a clean install?did you wipe your battery stats?
if you post some more info about your device then we can help you even more.
i would try changing the governor and then battery calibration (you can find it on the market). i had this rom and if i remember correctly there were some issues with my battery too. i then got the 5.10.0 version and everything became normal again.
or you can upgrade to the latest version 6.0.0. i just installed it runs smooth as hell!!!
good luck!
Even I'm using the same rom and the battery drains heavily only when using applications and playing games. But can anyone help me how to upgrade it to version 6.0 with detailed instructions.
Sent from my HTC HD2 using XDA
Hello
I have a samsung s4 i9500 new phone about 4 months old. I encoutered many battery problems so i installed Arrow rom, which i fell in love with it in a sec, it had everything and the battery life was just amazing. (Thanks to all who contributed into making this amazing rom).
But something happened when i installed an app about adds and it kinda restored my phone yo factory settings, i didnt care much for the reset, but i found out that my battery life ia no longer like before. Let me give you my states before and after.
Ps: i reinstalled the rom hoping better resulta but it was the same
I sleep usually at 1pm and wake up at 10. Thats 9 hours, when my phone was fine it only drained about 10% or 12%.
But as in for today for example, i slept 7 hours and it drained 20%.
Most of the draining came from android oa at 89%.
Please note that before i go to sleep i always charge my phone to 100%
Is there something wrong? Ill do any test to solve mu problem.
Thanks all
Ali Omran said:
Hello
I have a samsung s4 i9500 new phone about 4 months old. I encoutered many battery problems so i installed Arrow rom, which i fell in love with it in a sec, it had everything and the battery life was just amazing. (Thanks to all who contributed into making this amazing rom).
But something happened when i installed an app about adds and it kinda restored my phone yo factory settings, i didnt care much for the reset, but i found out that my battery life ia no longer like before. Let me give you my states before and after.
Ps: i reinstalled the rom hoping better resulta but it was the same
I sleep usually at 1pm and wake up at 10. Thats 9 hours, when my phone was fine it only drained about 10% or 12%.
But as in for today for example, i slept 7 hours and it drained 20%.
Most of the draining came from android oa at 89%.
Please note that before i go to sleep i always charge my phone to 100%
Is there something wrong? Ill do any test to solve mu problem.
Thanks all
Click to expand...
Click to collapse
Hi.
U should install BBS app and post "other" and "partial wakelocks" screenshots so that we can tell what's eating up yr battery life.
Cheers.
deep sleep!
Yeah BBS is definitely the way to go..also you might want to check skipjack's awesome thread for better batt life when idle (insanely )
http://forum.xda-developers.com/showthread.php?t=2357417
I got better batt life with my s4 after i did some of their tips on this thread..
Sweetdreams to your phone's battery! ))
I have attached my files, btw the battery is kinda weird, one day it drained about 40% but somedays drains way less, keep in mind that when i go to sleep i turn off my wifi and use edge network, and power savor too.
Some solutions that I follow that kind of stopped severe battery drain and got the phone in deep sleep mode:
- Disable "Scanning Always Available" from Advanced settings of WiFi
- Disable GPS and 'Use Wireless Networks' from Location settings menu
- Greenify apps and a few services
- Before putting the phone down for good, clear all the recently opened apps by pressing and holding the HOME button and clearing them all. Then open up the task manager and clear RAM.
- To get the phone into deep sleep (you can monitor this using a free app called WakeLock detector, available on PlayStore), if you have the habit of switching on the screen and then switching it off whilst being in the lockscreen mode (just like you check time quickly without unlocking the device), the S4 DOES NOT go into deep sleep mode even though the screen is switched off.
To solve this, you need to unlock the screen, get to homescreen and switch off screen from there instead of directly locking/switching off the screen without unlocking the device. Yes, it's hell and I don't know why this issue persists :/