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

[Q] Battery Life

Last friday purchased HTC Incredible S, since I'm kinda hardcore user of phones (previously had old crap Samsung Tocco Lite - was surfing on internet + listening music, without problem could survive 10-12hrs nonstop use), now when I tried same with Incredible S, it end up that after 2-3 hrs of surfing + some app using for awhile, I ended up at 30-35% from 100%. I did turned all syncs off, brightness to minimums, turned of almost everything and all tasks, so it was just like test for how long surviving it with no internet(wifi/mobile),any sync, any sound/vibration and low brightness - it survived 1 hour longer then before. Like srsly 400£ worth phone with battery what can't hold even 6 hrs?
P.S. first try with apps and such was record for 4 hrs, next test without any apps etc etc survied 5 hrs...

The battery gets better in time.
Sent from my GT-P1000 using XDA Premium App

prinzhernan said:
The battery gets better in time.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
I see that you have Incredible too, how long your battery lasts when using atleast 2h of app/call/internet usage?

same here, I need to keep charging it. maybe upgrading the kernel and rom helps.

prinzhernan said:
The battery gets better in time.
Sent from my GT-P1000 using XDA Premium App
Click to expand...
Click to collapse
I'm seeing this aswell. The more i use my phone the better the battery gets.

my battery does last 1day 12-15hr. All sync on, mobile networks on, background sync on. Normal use, that is incredible.

well when i first got my IS, the battery life is ridiculously short, from 100% -> 20% in 2 hrs of intense use!
But the battery life is getting better at day 3 (around 5x full charge cycle), do the calibration thing, use till 1%, but make sure phone is not dead, and recharge to 100%, redo for like 5 times.
If battery life still sucks, i think you get a bad battery
My battery lasts 9 hours of intense use (Wifi,3G,Games,Surf net,Listen to music)

Hello
I have installed Battery Monitor Widget Pro to check battery consumption. You can see so which are the applications that drain more your battery, tipically the display.
My battery runs one full day, even one and half with Wifi and BT always ON and normal telephone usage but if I switch on 3G it decrease rapidly and sometimes cannot reach one full day.
So in my case the 3G connection drains a lot.
Stefano

I've had mine since late april and I get a whole day, at least, out of it. Yesterday, I actually went 24 hours without charging it and I still had 30% left. The only "syncs" that are on, are my gmail, weather and Whatsapp. I can definitely confirm it gets better with time!

has anyone ordered from Amazon.Co.Uk, I was wondering if they can refund for phone, so I can take instead HTC Sensation :/
Anyways, I got this phone like 3-4 days ago, now I'm trying to maximally drain it with apps/games to get that battery life up

sense drains your battery...
and also 3g drains it if you have a unstable connection
what i allways do is out of the box, drain it 100%
charge it 100%
drain it 100%
charge it 100% and your done...
might be a ghost story, but surely seems to work for me, however 12hours and mine is empty as fk, with gaming, bad 3g connection, wifi, gtalk etc.etc. aka daily usage..
but thats cuz im running cyanogenmod, which isnt 100% stable yet

Do people not read anything these days? You're complaining about battery life of a smart phone... None of them last longer than a day or two max. Not to mention it's a new toy and you can find yourself on it more often. Checking the battery constantly kills your battery. Tones of widgets kill your battery.
Sent from my HTC Incredible S using XDA Premium App

I do understand about 1-2 days of uptime for phone is ok, but mine doesn't survive even 6h +_+ , contacted HTC and they said that battery is fauly.
ANyways... I dont use widgets and actually turned of all sync and stuff like that to prevent battery drain, even in airplane mode, it drains from 40 to 5% (to complete dead) in about 1-2 hrs

I find battery life pretty poor. After charging to 100%, it can be down to 90% within half an hour - without really even using the phone. I can turn on the phone at 7am, and it will be down to between 50 and 40% by 11pm, never normally enough to get through the next day.
I'm going to try some overclocking to see if that helps.

DJjay18 said:
I find battery life pretty poor. After charging to 100%, it can be down to 90% within half an hour - without really even using the phone. I can turn on the phone at 7am, and it will be down to between 50 and 40% by 11pm, never normally enough to get through the next day.
I'm going to try some overclocking to see if that helps.
Click to expand...
Click to collapse
Overclocking will drain even more battery, downgrade better speed of it and it should save battery

I've found that for the first few weeks of having the phone, the battery life will be crap... cause you're generally always messing around with it.
Lately I've been getting two work days out of a charge (6am to ~6pm the next day). I rooted the phone, uninstalled a bunch of bloatware, and set it to underclock when the screen is off (although I'm having issues with that one at the moment).

I'm thinking to buy other phone instead of this (amazon is accepting this for refund/replacement now), so I was thinking if it's worth take Sensation instead of Incredible S?

[Q] Bad Battery Life?

Is the O4X's battery life as bad as gsmarena is saying? Just a little over 4 hours of video playback and 4 hours of web browsing?

If you read the comments of the blog article on it, you will see that there is a lot of discussion over the brightness.
By comparison to the SGS3 and One X, the Optiums has a much brighter screen which will mean a lower battery life. Of course if they set all the phones to the same actual brightness (not percentage) the numbers would be different.
I am currently waiting delivery of my 4X, but after I have conditioned the battery (let the handset configure itself to the battery), I'll definitely be seeing what its capable of.

Alright thanks, I hope you'll be able to get back to this thread when you find out more.

I've had mine since friday and I think I've charged it about 3 or 4 times now and the battery life is getting better. It lasted only about 2 hours when I first charged it and started it for the first time. But I was using it constantly.
Today I started it in the morning (fully charged) before going to work and now, 10 pm, it's been on for about 16 hours and I have 40% left. Data have been on all day and I've been signed in to Google Talk all day, I've browsed the web for a total of aprox. 1 hour, used the camera, tested the GPS and been chatting with a friend on talk. So I'm pretty satisfied so far.
It's better than my O2X.

crewol said:
I've had mine since friday and I think I've charged it about 3 or 4 times now and the battery life is getting better. It lasted only about 2 hours when I first charged it and started it for the first time. But I was using it constantly.
Today I started it in the morning (fully charged) before going to work and now, 10 pm, it's been on for about 16 hours and I have 40% left. Data have been on all day and I've been signed in to Google Talk all day, I've browsed the web for a total of aprox. 1 hour, used the camera, tested the GPS and been chatting with a friend on talk. So I'm pretty satisfied so far.
It's better than my O2X.
Click to expand...
Click to collapse
That's good to hear. How many hours was the screen on?

I'm not sure unfortunately. But i would say between 2-4 hours.
Edit: okay it was a little less than I thought. The. Battery usage in settings says the screen have been on for two and a half hours. And that's including the time I have used after 40%. I'm down to 25% now.

My Battery lasts after a few cycles all over two Days with medium Usage (No gaming - WA, FB, eMail)........

i ca go for 1 day, with a bit gaming and usual use.

I have slightly longer battery life on my 4X HD than on my Nexus S when using the phones in the same way (casual use). But I think there is room for improvment on the battery life with more optimized software either from LG or when we start seeing custom roms for this device.

I charged mine to 100% and just dropped 8% in 25 minutes, 20 minutes of that was driving and not using the phone, no Bluetooth or anything like that. The battery life is shocking and can't wait for extended ones to become available. Besides that I truly love this phone
Sent from my LG-P880 using xda premium

ianford10 said:
I charged mine to 100% and just dropped 8% in 25 minutes, 20 minutes of that was driving and not using the phone, no Bluetooth or anything like that. The battery life is shocking and can't wait for extended ones to become available. Besides that I truly love this phone
Sent from my LG-P880 using xda premium
Click to expand...
Click to collapse
How many complete charge cycles have you done?
Sent from my LG-P880 using xda app-developers app

When I got my p880 I did 3 battery cycles, and I could only get about 8 hours of standby alone, no other use at all. I then did a factory reset and formatting of the memory card, which I hadn't done when I switched from my old SE X8. Now my p880 can easily go more than a day with some gaming, calls, browsing etc. My guess is that old android files on the memory card was the reason for the bad battery life. No expert though, maybe someone else has a better idea.
Today I tried the Chrome browser, and it really drained the battery. Something like 20% after browsing for 15 mins. Anybody else have experience with this?
Overall I'm really happy with this phone, great screen, fluid operation, good battery.

I've had battery drainage issues with the chrome browser as well. Even in stand-by the browser would drain the battery. It has only happened like two times for me in the four weeks i've had the phone, so not a biggy but still something you should be aware of, if you experience battery drainage issues
Sent from my LG-P880 using xda app-developers app

alexp999 said:
How many complete charge cycles have you done?
Sent from my LG-P880 using xda app-developers app
Click to expand...
Click to collapse
I keep topping it up as I run most of my business from my phone so need it to have lots of juice in it. Today I'm going to completely drain it so it turns off then fully charge it again and see what happens
Sent from my LG-P880 using xda premium

[Q] Added value of Stamina

I bought my Xperia Z almost three weeks ago, and I am very happy with this device.
The device showed me that I had a few hours left on battery, but as soon as I turned on Stamina-mode it told me I even had a few days left! (But it never really gave me these few days.)
Now I have installed CM10.1 on my rooted Xperia Z, I lost Stamina. But for me it didn't really have impact on battery life.
Battery life on my rooted CM10.1 Xperia Z is still very good.
My question: Was Stamina really improving battery life, or was it just adding placebo?

yes it's improving battery life when in standby mode(screen is off / not using phone)

I personally think Greenify does a much better job. Without needing to turn off data.
Sent from my C6603 using xda premium

It depends a lot on your usage patterns. If you use a lot of mobile data, it makes a huge difference. It literally turns off data when the screen is off. So it improves your battery life by that much. However, over WiFi it didn't really make much of a difference. Also, if you wake your phone up every few minutes to text, it seems to only hurt the battery as it keeps the phone awake for about a few minutes after the screen is off. So you're essentially reducing the idle time of your phone. So it's all up to how you use it.
Sent from my C6603 using Tapatalk 2

new Xperia z and problem with battery

I've just bought Xperia z and everything seems to work fine except the battery life..
The battery had obviously problems (discharging while charging and playing a game)
so I went back to the store and the next day after they checked it out they replaced it..
The 2nd one hasn't shown yet that kind of problems but..
Just to be cautious I did some kind of test myshelf:
I charged while it was off, then turned it on and opened only one app chrome and started surfing online with Wifi (3g/4G all closed and no call made).
And while I was surfing I took note of the battery percentage from time to time..
So this is my "timeline":
95% 11:05
90% 11:20
89% 11:23
88% 11:25
77% 12:00
73% 12:27
...
Does this battery consumption looks normal? ( no other app except chrome and no external apps were installed)

seems said:
I've just bought Xperia z and everything seems to work fine except the battery life..
The battery had obviously problems (discharging while charging and playing a game)
so I went back to the store and the next day after they checked it out they replaced it..
The 2nd one hasn't shown yet that kind of problems but..
Just to be cautious I did some kind of test myshelf:
I charged while it was off, then turned it on and opened only one app chrome and started surfing online with Wifi (3g/4G all closed and no call made).
And while I was surfing I took note of the battery percentage from time to time..
So this is my "timeline":
95% 11:05
90% 11:20
89% 11:23
88% 11:25
77% 12:00
73% 12:27
...
Does this battery consumption looks normal? ( no other app except chrome and no external apps were installed)
Click to expand...
Click to collapse
1 1/2 hour of screen on losing about 20 percent of battery seems pretty normal to me.
Edit: i think its better than normal. I usually get less than 1 1/2 hour per 20 percent. Usually get 1 hour to 1 1/4 .

get betterBatteryStats !

The average screen on time is about 4hours. So you do the math. Looks pretty normal to me.

seems said:
Does this battery consumption looks normal? ( no other app except chrome and no external apps were installed)
Click to expand...
Click to collapse
take note of your screen brightness, that one seems normal for an xperia z

Xperia Z drinks the battery pretty quick - I don't know however, if it's more power greedy than HTC One or Galaxy S4.
For the same reason do I have an external battery from Anker. It keeps my Z charged when I'm on the road.
Sent from my C6603 using Tapatalk 4

Thats normal while browsing the web on wifi. The normal screen time while browsing on the xz is around 4hours with auto brigthness with no mods like lower voltage, etc.
I did find that dolphin browser is a little more battery friendly than chrome but even then dont expect much more out of the xz screen time on browsing web or watching movies or gamming.

the xperia z battery just sucks

seems said:
I've just bought Xperia z and everything seems to work fine except the battery life..
The battery had obviously problems (discharging while charging and playing a game)
so I went back to the store and the next day after they checked it out they replaced it..
The 2nd one hasn't shown yet that kind of problems but..
Just to be cautious I did some kind of test myshelf:
I charged while it was off, then turned it on and opened only one app chrome and started surfing online with Wifi (3g/4G all closed and no call made).
And while I was surfing I took note of the battery percentage from time to time..
So this is my "timeline":
95% 11:05
90% 11:20
89% 11:23
88% 11:25
77% 12:00
73% 12:27
...
Does this battery consumption looks normal? ( no other app except chrome and no external apps were installed)
Click to expand...
Click to collapse
"discharging while charging and playing a game" this is normal since Xperia charger is not that powerfull, you need 2 amp charger to do that (but it is not healthy for the phone, even xperia charger is not healthy enough)
Your timeline looks normal, surfing the web is not a simple task, there is a part when: cpu eats a lot of energy, gpu eats a lot of energy and screen and wifi module...
spazzy1912 said:
the xperia z battery just sucks
Click to expand...
Click to collapse
by my experience - Xperia Z battery is very good - the part that sucks is the problem of all batteries in the world which is not a battery itself - the problem is with power consumption, even when we reach a technology were batteries get 10x more power, someone will think - i know - lets put 10x more transistors in the cpu...

Raider0001 said:
"discharging while charging and playing a game" this is normal since Xperia charger is not that powerfull, you need 2 amp charger to do that (but it is not healthy for the phone, even xperia charger is not healthy enough)
Your timeline looks normal, surfing the web is not a simple task, there is a part when: cpu eats a lot of energy, gpu eats a lot of energy and screen and wifi module...
by my experience - Xperia Z battery is very good - the part that sucks is the problem of all batteries in the world which is not a battery itself - the problem is with power consumption, even when we reach a technology were batteries get 10x more power, someone will think - i know - lets put 10x more transistors in the cpu...
Click to expand...
Click to collapse
imo, i am struggling to get 4 hours of on screen time on my Z, and i consider that quite bad,
this statement is based on flagship devices from other companies

spazzy1912 said:
imo, i am struggling to get 4 hours of on screen time on my Z, and i consider that quite bad,
this statement is based on flagship devices from other companies
Click to expand...
Click to collapse
mine too - Nokia N95 8GB had like 2h 30m of on screen time, galaxy s 3h 40m
4 hours is pretty good considering that it is quad core 5 inch lte sdcard(this is just another device that needs power) monster

spazzy1912 said:
imo, i am struggling to get 4 hours of on screen time on my Z, and i consider that quite bad,
this statement is based on flagship devices from other companies
Click to expand...
Click to collapse
I always get more than 4 hours of screen on and can't really compare to other flagships as they have bigger battery than the Z except for HTC one.
Sent from my C6603 using Tapatalk 2