Database Develop

Battery Life- An experiment

Anderson Did an experiment to see how far the battery life can last on normal usage.The battery power was monitored using the app "Battery Monitory Widget"
And he came to the conclusion that The battery life could well last more than 2 days if you use just the communication tools (whatsapp, Facebook, sms) on a 2G network. With heavy data usage, the battery power got zapped out rather quickly.
You can have a look at the full experiment
optimus2x.net/index.php?topic=907.0

I'm kind of experimenting in this too..
Today i unplugged my phone this morning (6am) and its dropped to 97% now @ (3pm).
So thats only 3% in 9 hours..
I use Facebook widget which updates + Twitter widget same setting (both auto update every hour)
I sent about 10 text messages (also received about that amount) and made 1 phone call (about 3 minutes)
All this on 3G network, i dont save on 2G/3G setting

2G coverage is very suboptimal in Switzerland, especially if you are using a Sunrise.ch contract. Their 2G performance with Edge is about 100kbit/s for download. This is a joke. I am not able to use a phone with 2G and enjoy it. Therefore whenever possible I have to switch on 3G (which is of course also not great, but at least it is much faster).
Therefore, 2G is not an option at all for me.

I am running stock on mine and I seem to at least have found some form of "battery" drain. Trying to reproduce the usage.
But I charged my phone fully, and then restarted it and "at the moment" it is holding its power sorta alright. But when I use it normally it lasts like 7-8 hours before needing a recharge, even if its just laying on my desk and not being touched.
Ok testings done. These figures are after a reboot and where I have more or less left the phone laying on my table only having a short call, and otherwise reading a few emails and responding to a few texts. The entire time autosync was on, as well as 3G Data.
1H30M -08%
5H30M -30%
8H20M -50%
11H00M -68%
12H15M -74%
13H08M -79%
14H15M -85%
15H20M -93%
At which point I stopped the test and then put my phone in the charger. Tomorrow once it is done charging I will start up all the stuff I normally run on it, charge it to full and see how well it does there when I am not using the phone at all. Quite frankly I expect a large difference simply because that is what I have seen, but starting program and then exiting said programs and leaving the phone on standby "should" not impact consumption in my view at least.

I think there is something bad with my battery, because Battery Monitor Widget says that my battery is a 1200 not 1500, without doing nothing at all it lose 1% per hour and suddenly in 10mins drops like 6%, so in 8hs aprox from 86% goes to 68% (the phone doing nothing)
I have 3G always active, whatsapp and gmail, just that. Will try to do the test again with 2G, but what I don´t understand is why it says 1200 instead 1500.
Should I get a new battery? could be deffective this one?

snakewar said:
I think there is something bad with my battery, because Battery Monitor Widget says that my battery is a 1200 not 1500, without doing nothing at all it lose 1% per hour and suddenly in 10mins drops like 6%, so in 8hs aprox from 86% goes to 68% (the phone doing nothing)
I have 3G always active, whatsapp and gmail, just that. Will try to do the test again with 2G, but what I don´t understand is why it says 1200 instead 1500.
Should I get a new battery? could be deffective this one?
Click to expand...
Click to collapse
You define your battery size in settings, 1200 mAh is default.
Sent from my LG-P990 using XDA Premium App

What rom is best on battery?
Sent from my LG-P990 using Tapatalk

reidar.ostrem said:
You define your battery size in settings, 1200 mAh is default.
Sent from my LG-P990 using XDA Premium App
Click to expand...
Click to collapse
OMG I feel kinda dumb now, thank you so much for your reply.
I can´t understand why it doesn´t last my battery.

Sckank said:
What rom is best on battery?
Sent from my LG-P990 using Tapatalk
Click to expand...
Click to collapse
CM7 is the best for me

CM7 seems to be really good for me, i used 28% of it with medium-heavy use (no games, but wifi always on and a lot of playing about with) in 5 hours and at night i lost 3% in 7 hours sleep with 3G on. Not fully stable but seems better than sacrificing the smartness of my smartphone.

Lost 0% 2 days ago when sleeping for 9-10 hours i think
Today i lost 1% when sleeping for 9-10 hours
I am using 2g since i don't have 3g connection in my house.
It's a bit unstable but battery improvement is more important for me then some little bugs

snakewar said:
OMG I feel kinda dumb now, thank you so much for your reply.
I can´t understand why it doesn´t last my battery.
Click to expand...
Click to collapse
No problem .
The O2X does not have good battery management, so it will drain.. getting usable results with mcr r15
Sent from my LG-P990 using XDA Premium App

reidar.ostrem said:
No problem .
The O2X does not have good battery management, so it will drain.. getting usable results with mcr r15
Not realy stil not much of a difference froam stock
Sent from my LG-P990 using XDA Premium App
Click to expand...
Click to collapse
Sent from my Optimus 2X using XDA App

Battery power for LG Optimus 2x

Hello all!
I am new to the forum so I hope make it without any errors.
I bought the Optimus 2x cellphone last week whith the hope of getting the good one (the one without freezes and black screens) fortunately the cell worked very nicely. I updated to gingerbread and I feel it very good. But I have the good known problem of battery consumption.
Now I have a battery related question. After the update I charged the phone and get the battery indicator stuck at 100% I rooted the phone, installed Battery Calibration and calibrated the phone (left the battery to reach 0% then fully charged to 100% hit calibrate and left the telephone fully discharge again)
The issue is that when the thelephone was at 100% the voltage indicator of the battery calibration was in 4100 mV and here comes the weird thing. When reached 0% the voltage indicator was saying 2000mV.
My question is if this values are right. Someone with good battery duration and the Battery calibration installed could tell me the correct values? I thought that the phone shut down when battery was down to 0 mV but maybe the problem is that my battery is just using "half" battery.
Sorry for my english. I am not native english speaker.
Any help will be highly appreciated.
Thanks

That is voltage, 3300mv = 3.3 volts.
Fully charged the battery would be at 4180mv, fully discharged is around 3200mv usually, or a bit higher.
The phone shuts off when the battery gets below the usable range, which I believe is slightly above 3000mv.
So yes a range of 3.3 to 4.2 volts is perfectly normal for a 3.7v battery.
Sent from my Optimus 2X using Tapatalk 2

Hi! Thanks for your reply. So I think I should get used to it. My battery doesnt last more than 12 hours of my regular use. A some internet browsing and some messaging. No music, videos, or games.
Someone recommends the extended batteries of 3500 mAh for this phone? That will make the phone last more time?
Thanks in advance!

Reaper511989 said:
Hi! Thanks for your reply. So I think I should get used to it. My battery doesnt last more than 12 hours of my regular use. A some internet browsing and some messaging. No music, videos, or games.
Someone recommends the extended batteries of 3500 mAh for this phone? That will make the phone last more time?
Thanks in advance!
Click to expand...
Click to collapse
Hi Reaper511989, I have bought an extended battery from HERE. It is fatter, but not ugly. And the battery lasts a lot longer. I use it when I'm travelling. I have no idea where in the world you are, but the battery was from a company in the UK.
Have fun. Anil

Huge Battery drain on DjangoManouche/Guestekrnl
Hi,
I was on CM7 kang of temasek and I decided to flash a stockbased rom.
Now I'm on :
DjangoManouche 1.2 rom
Guestekrnl V1.6.1
BB V20Q with ril
I am using Go launcher which comes with the rom
The battery drain is incredibly huge, 8 hours tops with very little use
Anybody some ideas ?

your lucky. i get 6. if im playing 3 albums of mp3's during work. nothing on. just 2g.
imagine if i turned on gps,wireless,bt 3g/4g ahhhh . (cant use fone how its sposed to be used) have ot turn it DOWN a notch. its to HUNGRY on juice. seriously lookin @ one of those MUGEN batteries.

6 hours is just wrong... in the most intense usage you should get 2 hours of screen ON time.. Wifi with 2g on trolling forums with browser/tapatalk should be 4 hrs.
Sent from my Optimus 2X using Tapatalk 2

R0B3RTF1SH3R said:
your lucky. i get 6. if im playing 3 albums of mp3's during work. nothing on. just 2g.
imagine if i turned on gps,wireless,bt 3g/4g ahhhh . (cant use fone how its sposed to be used) have ot turn it DOWN a notch. its to HUNGRY on juice. seriously lookin @ one of those MUGEN batteries.
Click to expand...
Click to collapse
6hours listening to music is pretty normal. If you want longer battery live, stop using the device.
Sent from my HTC Wildfire using XDA

grognaz said:
6hours listening to music is pretty normal. If you want longer battery live, stop using the device.
Sent from my HTC Wildfire using XDA
Click to expand...
Click to collapse
That doesn't give you more battery life.. sigh
Sent from my Optimus 2X using Tapatalk 2

Mungulz said:
That doesn't give you more battery life.. sigh
Sent from my Optimus 2X using Tapatalk 2
Click to expand...
Click to collapse
Well in that case you might wanna repair your device since you seem to have the same issue with all roms. That should not be the case that it uses the same amount of battery without using it, especially if no app is loading the cpu....
Sent from my HTC Wildfire using XDA

well actually. cm7 i got about 5-6 hours batt life, cm9 i got no more than 8, GB (stock rom) can usually go from 5-8 hours. but with no bugs. so i am back on GB.
so i dont think device is broken/dodgy since the batt life fluctuates a little. depending on the rom.
my main issue is, ive been reading about ppl using froyo and going to GB and having mass battery drain. now im thinking about going to froyo.

R0B3RTF1SH3R said:
well actually. cm7 i got about 5-6 hours batt life, cm9 i got no more than 8, GB (stock rom) can usually go from 5-8 hours. but with no bugs. so i am back on GB.
so i dont think device is broken/dodgy since the batt life fluctuates a little. depending on the rom.
my main issue is, ive been reading about ppl using froyo and going to GB and having mass battery drain. now im thinking about going to froyo.
Click to expand...
Click to collapse
Could you please share your findings? Since I'm having the same problem and started thinking about returning to stock as well.

Why my phone heats too much

Why my samsung galaxy s i9000 heats too much
Sent from my GT-I9000 using xda app-developers app

mihirr said:
Why my samsung galaxy s i9000 heats too much
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
What apps do you have installed/are you using?

well according to the voltage you either have it over clock or you need to turn the voltage down. and you should check what cpu governer its set too. by the looks of thing it spends most of it time at idle so its problably set to performance, so set it to ondemand

Im facing this when i connected to the wifi.

I over clocked my ram using devil kernel.. governor was on lulzactive
i changed it to ondemand
Now its normal (no over clocked anything) but still wen i use hostpot it goes to 45°
Sent from my GT-I9000 using xda app-developers app

Same problem wen i use hotspot
Sent from my GT-I9000 using xda app-developers app

mihirr said:
I over clocked my ram using devil kernel.. governor was on lulzactive
i changed it to ondemand
Now its normal (no over clocked anything) but still wen i use hostpot it goes to 45°
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
When i use wifi hotspot ,phone plugged in charger at the same time my phone might go over 50 celcius,, havnt worried about it..

What if i turn the I/O scheduler to NOOP?My batt seems to be crazy a bit now.I charge it fully 100% for 8 hours,then when i plug the charger out my batt show the batt were 99% and start to go lower power,In 10 seconds later it shows 97%..WTF?

Eddicts said:
What if i turn the I/O scheduler to NOOP?My batt seems to be crazy a bit now.I charge it fully 100% for 8 hours,then when i plug the charger out my batt show the batt were 99% and start to go lower power,In 10 seconds later it shows 97%..WTF?
Click to expand...
Click to collapse
Idk,, im using simple i/o.. only thing that comes in mind that ur battery indicator needs a calibration. Download this app: https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=fi
Open it and follow instructions

Will try this thanks
Sent from my GT-I9000 using xda app-developers app

may be it's a bad battery problem !!

Mongopusher42 said:
Idk,, im using simple i/o.. only thing that comes in mind that ur battery indicator needs a calibration. Download this app: https://play.google.com/store/apps/details?id=com.nema.batterycalibration&hl=fi
Open it and follow instructions
Click to expand...
Click to collapse
Try the app but the result are same.Anyway thank you for your suggestion bro..I'll think something else

well 50 when you teathering is normal. and try in cwm ander advanced settings wipe battery stats. but do it when its at a full battery

taz0697 said:
well 50 when you teathering is normal. and try in cwm ander advanced settings wipe battery stats. but do it when its at a full battery
Click to expand...
Click to collapse
Yup it is.. yeah the app i linked does the same thing without having to go to in cwm
Eddicts said:
Try the app but the result are same.Anyway thank you for your suggestion bro..I'll think something else
Click to expand...
Click to collapse
Then it just might be ur battery.. if u need a good replacement battery, i suggest to order a PolarCell 1800 mAh battery from ebay for 12.90 euros including shipping, took about a week till it dropped in my mailbox
http://wap.ebay.de/Pages/ViewItem.a...y-S-EB575152VU-/390280069621&autoredirect=off

Been hours of charging but the batt wont FULLY CHARGE..Have no idea what in the world is going on with my battery..

Eddicts said:
Been hours of charging but the batt wont FULLY CHARGE..Have no idea what in the world is going on with my battery..
Click to expand...
Click to collapse
A fully charged battery is around 4200mV i actually get that same amount when fully charged(4196mV) just hit the calibration button and use ur phone normally til 1-10% and charge again and see if it goes up to 100% if it doesnt, i think u just have to live with it.. i had that same problem some months back and just lived with it cause it didnt really bother me. Nowadays it charges to 100%, i recon i didnt do anything special to make it work so maybe urs will start to work with time

Oh..i see,i make a research thru net and found out the battery power for normal user would be 1500 mah and the other hand for advance user they would get a 3500 mah batt power.So should i choose to change it?Usually i do work with my phone so it is botherin me tho.I charge my phone for atleast 4 hours to see how the power would drain the batt without having a wifi/bt and some other bg process,I was shock when after i plug out the charger my batt drain 1% after 1% within a second!How fast is that??!My Galaxy W didn't face the same tho..This is some kinda magic or what?!..It is so irritating me..

Eddicts said:
Oh..i see,i make a research thru net and found out the battery power for normal user would be 1500 mah and the other hand for advance user they would get a 3500 mah batt power.So should i choose to change it?Usually i do work with my phone so it is botherin me tho.I charge my phone for atleast 4 hours to see how the power would drain the batt without having a wifi/bt and some other bg process,I was shock when after i plug out the charger my batt drain 1% after 1% within a second!How fast is that??!My Galaxy W didn't face the same tho..This is some kinda magic or what?!..It is so irritating me..
Click to expand...
Click to collapse
Yeah, i use my mobile data on my laptop and the battery drains fast with wifi hotspot on, i always have it plugged in a charger when using it as the network for my laptop otherwise the battery drain is just crazy.. u could buy a 3500mAh battery but ur phone will turn into a hideous brick! cause the battery is so big, thats why i bought the PolarCell battery , its the same size than stock but 300mAh more battery charge. But if u use ur phone alot and ur not satisfied on the juice u get out of a smaller battery , i think the 3500mAh is the way to go
http://ecx.images-amazon.com/images/I/51DFBIUCaxL._SL500_AA300_.jpg
As u can see, u will need a new back cover(that usually comes with the battery 3500mAh) since the batteries physical size is double the size of a stock one

mihirr said:
Why my samsung galaxy s i9000 heats too much
Click to expand...
Click to collapse
Normal We have GLOBAL WARMING...

Btw, dont just go out and buy any battery on ebay, theres plenty of fake ones e.g "4000 mAh" battery could really be a 1500 mAh one..
I cant recommend u a good over 1800 mAh batteries since ive never used one myself.. but ive read that Momax and Mugen batteries are good.
Momax 2700mAh review:
http://www.gregschier.com/2011/04/m...ed-battery-w-kickstand/?wpmp_switcher=desktop
Mugen 3200mAh review:
http://androidforums.com/samsung-ga...0mah-battery-cover-warning-lots-pictures.html
Hope this helps :thumbup:

Battery drains too fast

So, my OB's battery drains too fast...after I unplugged it at 100% it went to 99% within a minute of use and so on...so basically I lose like 1% per 1 minute. WTF?
Using IZS ROM. No widgets. No apps that eats battery, Phone goes in deep-sleep so it's not a problem.

EDIT : Not good to answer after playing Silent Hill.
Sent from my LG-P970 using Tapatalk 2

AW: Battery drains too fast
Lexxx47 said:
So, my OB's battery drains too fast...after I unplugged it at 100% it went to 99% within a minute of use and so on...so basically I lose like 1% per 1 minute. WTF?
Using IZS ROM. No widgets. No apps that eats battery, Phone goes in deep-sleep so it's not a problem.
Click to expand...
Click to collapse
Factory reset in hidden menu? V30 baseband? How old is your battery?
Sent from my LG-P970 using xda app-developers app

N00BY0815 said:
Factory reset in hidden menu? V30 baseband? How old is your battery?
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
i noticed that too.
but i must say that even tho it goes down 1% after charge ends, i still see good battery life, at least for me.
yesterday 3/2 the battery drained around 60% in 18h30m of use. i had around 47 minutes of call, around 1 hrs of wi-fi, took few pics with camera.
today 4/2 i didnt see the batt. goes 1% less when disconnecting the charger, plus had few calls no wifi or data use, and more camera use then before and the batt went around 20% less since morning in about 8 hrs total use time.
btw i can i take SS in this rom, i know the zeus v6.4 i pressed vol- and power and it took SS, what can i do now? only dl from market??

Screen flickerig on low battery despite battery replacement

Hi,
Hey i am using my note for a year now, and my phones battery got swelled, with some discussion on xda i was adviced to replace my battery which i did with another original samsungs battery. Now this new battery is charging and discharging fine, and is giving me an on screen time of 5 hours with constant messaging and music and some browsing, the issue that i am having is of battery indication and screen flickering.
First the screen flickering issue, whenever i am below 20 % my screen starts to flicker and it keeps on flickering till the phone dies, sometimes even at 15%. Then when i tried to charge it, it charges from 0.
At times when i partially charge my phone, say i am on 50% and then when i unplug my phone at 60%, it then shows 75% indication but then the flickering starts at 30% and phone dies at 26%.
The battery is giving average time so i think its not a battery issue or maybe it is.
But then i mostly found it a battery indication issue, i read multiple threads and even wiped my battery status. but the issue is the same.

may be give it a few charging cycles.. charge it from 0 to 100 with phone off.. till it says completely charged.. then check the performance..

Maybe you bought a faulty battery!?! did you bought the orignal samsung battery?
Sent from my GT-N7000 using Tapatalk 2

abhinav quietly brilliant said:
Maybe you bought a faulty battery!?! did you bought the orignal samsung battery?
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
replace my battery which i did with another original samsungs battery.
Click to expand...
Click to collapse
He said he did

so the battery is in 6 month warranty ask for a replacement
Sent from my GT-N7000 using Tapatalk 2

Your phone is just a mirage as are all of your flaming posts.

you sure its original, some fake ones out there, Id still bring it back If I were you

Well yes its from samsungs outlet, dated and stamped.. otherwise the battery indicators and every other stat is good. On full charge it has 4.320 V. Discharging equally to 2.8 V. But indications is not going according to the drain and flickering at low %.
Sent from my GT-N7000 using xda app-developers app

qazibasit said:
Well yes its from samsungs outlet, dated and stamped.. otherwise the battery indicators and every other stat is good. On full charge it has 4.320 V. Discharging equally to 2.8 V. But indications is not going according to the drain and flickering at low %.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
I am having a similar issue where my screen will flicker for a minute and then immediately turn off and charge from 0%. I was wondering if it could be a kernel issue as my battery is the stock battery and has never had problems before (I am on XXLSC). To me it looks like the battery is not getting enough power (hence the flickering) and then turns off. Sometimes if I turn off my phone as soon as it starts to flicker and I wait 10-15 minutes I can turn it back on no problem, other times it will just die. I have tried clearing battery stats, and was going to try my spare battery but apparently that swelled in storage.
Good luck in figuring it out! I will report back if I find anything new.

qazibasit said:
Well yes its from samsungs outlet, dated and stamped.. otherwise the battery indicators and every other stat is good. On full charge it has 4.320 V. Discharging equally to 2.8 V. But indications is not going according to the drain and flickering at low %.
Sent from my GT-N7000 using xda app-developers app
Click to expand...
Click to collapse
4320volt, interesting, I think its faulty, its off about 120 volts. If it depletes at a higher voltage, it looks like something is astray with the meter/level indication or battery

baz77 said:
4320volt, interesting, I think its faulty, its off about 120 volts. If it depletes at a higher voltage, it looks like something is astray with the meter/level indication or battery
Click to expand...
Click to collapse
Sorry for the confusion it actually was 4320 mV or 4.320 v when full charged.
Let me post some screen shots. The overall on screen time is around 5 hours. So the battery is giving a good timming.
Sent from my GT-N7000 using xda app-developers app

666fff said:
Your phone is just a mirage as are all of your flaming posts.
Click to expand...
Click to collapse
App fanboys just enjoy their fixed batteries
Sent from my GT-N7000 using xda app-developers app