Database Users

Samsung Galaxy S II drains battery too

Hi
If you look at this youtube video it looks like Samsung Galaxy S II also drains batter fast.
Or simply look at this picture and compare battery and time!
I guess they did not think about that when they made the video

This is Stupid. ... How can you conclude it like this. .. !!! Come on man ... Find something proper to post....

Actually looking at the video it seems that the SGS2 charges its own batteries!1
First the battery is at the red level and after that it is back to green level!

dude, it's a prototype, samsung will fix all the bugs before it gets out.

they could use more than one GSII....

What do you guys expect? Battery to last a full week? They made the battery 1650 mAh now.. Screen is bigger, other fancy things.. It's normal that a phone like this will eat battery. It's a half computer!

have you ever been to an expo like MWC?
devices change hands all the time and get max 30mins of charging before they are given to the next journalist...

galga2008 said:
dude, it's a prototype, samsung will fix all the bugs before it gets out.
Click to expand...
Click to collapse
can't resist...
I agree, just like they fixed the gps bugs on the galaxy s before release.

The bugs are software related, not hardware - so that gives room for xda developers to start twinkering and improving

You can't make good conclusion on just that.
But...
galga2008 said:
dude, it's a prototype, samsung will fix all the bugs before it gets out.
Click to expand...
Click to collapse
I almost fell down from my chair laughing

MuayThaiFighter8 said:
What do you guys expect? Battery to last a full week? They made the battery 1650 mAh now.. Screen is bigger, other fancy things.. It's normal that a phone like this will eat battery. It's a half computer!
Click to expand...
Click to collapse
Has anyone actually seen the back-cover off displaying a 1650mAh Battery.
I'm not saying the SGS2 won't have one but until I see visual proof I'm running with it being a 1500mAh, regardless to what the written spec states.

Batt consumption can´t be worse than on my HD 2. SGS2 has AMOLED screen which consumes less batt power by 25 %.
But since this is really an "ALMIGHTY" phone one will use it for everything during the day, so will batt-drain SUBJECTIVELY be big...........

What a waste of forum space......a device that is just hitting the market, you didnt even try it yourself, and already speculating about battery performance!!
BTW, which high-end Android phone which such processors, dont drain the battery ??

betoNL said:
What a waste of forum space......a device that is just hitting the market, you didnt even try it yourself, and already speculating about battery performance!!
BTW, which high-end Android phone which such processors, dont drain the battery ??
Click to expand...
Click to collapse
Lol "With such processors" these processors are supposed to drain less battery than the single-cores.

EleCtrOx666 said:
Lol "With such processors" these processors are supposed to drain less battery than the single-cores.
Click to expand...
Click to collapse
I am talking about 1000 MHz processors and up.
Do you really thing that a dual-core 1000MHz + processor are going to consume less battery juice than a 480Mhz processor used in some symbian devices?
Can you point out a Android device that is not "draining" the battery?
Which part of "wasting forum space " you didnt understand?

betoNL said:
I am talking about 1000 MHz processors and up.
Do you really thing that a dual-core 1000MHz + processor are going to consume less battery juice than a 480Mhz processor used in some symbian devices?
Click to expand...
Click to collapse
no but a dual core 1ghz processor will drain significantly less battery than a single 680mhz processor

betoNL said:
What a waste of forum space......
Click to expand...
Click to collapse
wow what a hater.. [email protected] guy, wish the forum had a thumbs down button for people like this

betoNL said:
Do you really thing that a dual-core 1000MHz + processor are going to consume less battery juice than a 480Mhz processor used in some symbian devices?
Can you point out a Android device that is not "draining" the battery?
Click to expand...
Click to collapse
Well you are comparing 2 different things. Android allows you to run apps in the background which uses battery, it has a touchscreen (most symbian phones don't have that) which is a huge drain.

It isn't even out yet.

betoNL said:
I am talking about 1000 MHz processors and up.
Do you really thing that a dual-core 1000MHz + processor are going to consume less battery juice than a 480Mhz processor used in some symbian devices?
Can you point out a Android device that is not "draining" the battery?
Which part of "wasting forum space " you didnt understand?
Click to expand...
Click to collapse
.... lol.
But really though, go find something else to do with your time.
Sent from my Nexus One using XDA Premium App

So I was just wondering..

How does the best that apple has to offer (4,4s,5 whatever) compare to our Nexus 4 in terms of screen on time. I see 4-5 hours screen on which I read is normal. 2 1/2 hours if playing a big game like The Sims 3. I can't seem to find a straight answer through searching so I was hoping a well versed Android user can tell me how many hours of screen on time that a healthy iDevice achieves on average.

They actually magically have some great battery. That is if their on a bugless ios version. From all the past idevices I've had I get more than average battery. I guess it depends on the user.. As for charging they charge hella quick.
Sent from my SAMSUNG-SGH-I717 using xda premium

+1
Great question

Ios battery life is better simply because it's much simpler compare to avoid complex os with true multitasking. N4 also has to support a more powerful chip and bigger screen.
Sent from my Nexus 4

Yeah, you really can't compare. N4 has: Bigger screen, more powerful processor, faster gpu... the iPhone has better battery life most likely because it is better optimized and has a far smaller screen.

I really don't care about what you can and can't compare. I would just like to know what real users experience on an iPhone in terms of screen on as I've always been an Android user.
Also the iPhone 5 does have a 4 inch screen, dual core and 1gb ram so I'd expect it to last longer as well as not be a contender with the N4 in performance. Sims 3 on the N4 is unbelievable.
I don't want to have to register on another forum and would just like to hear from a real user.

I don't know about that. I am surrounded by people who use iPhones, and everyone of them think that their battery life is ****. I reckon that at this point every smart phone (apart from the Note II which has a huge battery) just have crappy battery life.

snapper.fishes said:
I don't know about that. I am surrounded by people who use iPhones, and everyone of them think that their battery life is ****. I reckon that at this point every smart phone (apart from the Note II which has a huge battery) just have crappy battery life.
Click to expand...
Click to collapse
Wow I just did a search on Note II average battery life and am seeing many screen shots with 8 hours! If it weren't for the facts that I don't want to carry a tablet in my pocket everyday and my N4 (and Gnex before it) never once has come close to running out of battery before coming home at night, I may consider the Note 3 or current phablet as my next phone in a few years.
Still would like an answer to my original question, though.

Anyone?

If you check the Anandtech Nexus 4 review (I can't post a link as I'm a new user) it compares the the 4, 4S and 5 to the Nexus 4 in browsing tests. For all devices screen brightness was set to 200 nits however the nexus is stock. In short you'll get about twice as much browsing time out of an iPhone 5 as you will from a stock Nexus 4 on mobile data. On wifi you'll get about 1.6 times. Although it's not a "screen-on" test it's a good gauge of battery life.

http://blog.gsmarena.com/google-nex...test-see-if-its-better-than-the-galaxy-nexus/
The iPhone5 does consistently great in battery benchmarks.
The Web Browsing performance (what matters most IMO) is hands-down incredible.
My guess is that the smaller screen and highly optimized CPU are responsible.

[Q] battery life comparison exynos vs snapdragon?

Are there any comparisons of the two cpus available on the s4 when it comes to battery life? Thats the only reason for me to try to get an exynos version if its shows to be better in that respect.

Yeah, that's a good question I want to know the answer too, there are many people having testing devices but they are too hungry about testing the damn processor and gpu instead testing properly the battery life. -_-

demlasjr said:
Yeah, that's a good question I want to know the answer too, there are many people having testing devices but they are too hungry about testing the damn processor and gpu instead testing properly the battery life. -_-
Click to expand...
Click to collapse
Lord knows battery Life is very important to me.

the guy that's testing whatever people tell him to test said that when his battery got down to 30% it lasted like 3 hours with max brightness and benchmarks running

frankyy714 said:
the guy that's testing whatever people tell him to test said that when his battery got down to 30% it lasted like 3 hours with max brightness and benchmarks running
Click to expand...
Click to collapse
With wich cpu? Also no comparison to the other version mentioned here.

I'm not convinced, even with S3 you can spend all the battery juice in 3 hours if you want. To do a proper test you need to leave the device doing the same job like an Snapdragon S4 during the same time.
Sent from my GT-I9300 using Tapatalk 2

Octa has a longer battery life than SD600.
That's why samsung used 8 cores technology.
And by the way the 5inch HD screen saves power too for both version
Sent from my GT-I9300 using xda app-developers app

HMJ-q8 said:
Octa has a longer battery life than SD600.
That's why samsung used 8 cores technology.
And by the way the 5inch HD screen saves power too for both version
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Thaty what one hears, yes.
However I would like some actual test reports - for instance how long does the phone last for web browsing, for video playback and on standby?
I would like to see actual numbers.
As for the screen:
It is said to use 25% less power compared to previous amoled display generations. However that 25% value is something we have to trust samsung on I think, at least I have not seen any actual tests on power consuption of the display alone and it's probably not easy to test.
The way they have managed the display to consume less power is to use use phosphorescent instead of fluorescent green diodes, which use way less power. Until now they could not produce the green ones with an acceptable lifetime. The red ones have already been phosphorescent, and the blue one are still fluorescent since they are hardest to produce.
See here for some further details: http://www.phonearena.com/news/Sams...een-PHOLED-screen-tech-but-what-is-it_id40715

Hironimo said:
Thaty what one hears, yes.
However I would like some actual test reports - for instance how long does the phone last for web browsing, for video playback and on standby?
I would like to see actual numbers.
Click to expand...
Click to collapse
This. This so many times over.
So many people are parroting the "Exynos will have better battery life" thing but this really remains to be seen.
If the better battery life is in exchange for crippled A7 performance at inconvenient moments then it's useless. If better battery life isn't available for when you're using intensive apps then it's also useless.

Nexus 4 questions

Hey guys I just got a Nexus 4 with a cracked screen for $50, I just fixed it also.
I love the phone, I cut my AT&T sim to fit it.
I've just got a few general questions though:
If I disable two CPU cores, will it still be a snappy phone? Kinda like the S3? I mean the S3 has two cores right, not 4. Would it improve the battery life a lot more?
In the battery mod thread I've seen, I asked if anyone has the 3D model for the backside of the phone(to add another battery). I was wondering if anyone has some info on this? I would gladly risk this phone for an extended battery
What app could I use to disable two cores? Is there a kernel for 4.3(jss) that does this?
Thanks,
goatocean

goat_sea said:
Hey guys I just got a Nexus 4 with a cracked screen for $50, I just fixed it also.
I love the phone, I cut my AT&T sim to fit it.
I've just got a few general questions though:
If I disable two CPU cores, will it still be a snappy phone? Kinda like the S3? I mean the S3 has two cores right, not 4. Would it improve the battery life a lot more?
In the battery mod thread I've seen, I asked if anyone has the 3D model for the backside of the phone(to add another battery). I was wondering if anyone has some info on this? I would gladly risk this phone for an extended battery
What app could I use to disable two cores? Is there a kernel for 4.3(jss) that does this?
Thanks,
goatocean
Click to expand...
Click to collapse
As far as I know, it's only using all the cores when neccessary, so if you're worried about battery life just reduce the number of apps you use. I'm using the Purity rom now and easily get a day out of the battery.

As counter-intuitive as it sounds running more cores in a multicore CPU is more power efficient than running a few cores in most modern multitasking systems. You're spreading the process load over multiple processors that can be run at a lower clock speed than a smaller number of cores running harder.

Well drooling over the Ok Google feature of the moto(always listening).
Is it possible to make a kernel that would have 3cores running max, and 1 core running 196mhz?
Then make an app that's using that one downlocked core to always listen. I wonder what our battery life would be though

Downsides of oneplus two?????

I am about to buy on2 and i read a lot about that fingerprint sensor being slow compared to other nexus devices . Is is true ?
And what are the other downsides of this phone?
How would you rate it?
Design(in hand feel)
Display
Camera
Reception / call
Performance
Software
Battery life
And i am currently using Oneplus one which i think it's awesome. I wanna know if it is worth the upgrade?
Sent from my A0001 using Tapatalk

Design(in hand feel) Feels very premium and well build
Display It's okay, nothing spectacular. Could be me since i have OLED everywhere else.
Camera Pretty good. Altough i would have favored a 16mp sensor like the LG
Reception / call Best i ever had. Reception is really good and sound quality is amazing.
Performance Could use some tweaks on the software related side of things.. Should be all fixed with Marshmallow update
Software See my point at performance.
Battery life Stock. 3h SOT. Boeffla kernel: 5-6h SOT.
Another minor complaint is the vibrator. It's slow and noisy and doesnt vibrate well(just like the OPO). I do like the phone though.

paultje162 said:
Design(in hand feel) Feels very premium and well build
Display It's okay, nothing spectacular. Could be me since i have OLED everywhere else.
Camera Pretty good. Altough i would have favored a 16mp sensor like the LG
Reception / call Best i ever had. Reception is really good and sound quality is amazing.
Performance Could use some tweaks on the software related side of things.. Should be all fixed with Marshmallow update
Software See my point at performance.
Battery life Stock. 3h SOT. Boeffla kernel: 5-6h SOT.
Another minor complaint is the vibrator. It's slow and noisy and doesnt vibrate well(just like the OPO). I do like the phone though.
Click to expand...
Click to collapse
What about the fingerprint sensor?
Sent from my A0001 using Tapatalk

xrock8 said:
What about the fingerprint sensor?
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
Works very good, the "weak" point could be the lack of NFC. But for me its not a problem. I had a nexus 5 for two years and I never use it.
Sent from my ONE A2005 using Tapatalk

The two weakest points of the phone really are battery life (at least when running stock OOS) and the stupid Snapdragon 810, which really is a useless piece of crap that unnecessarily limits the phone's performance to a point where it gets ridiculous ...

xrock8 said:
What about the fingerprint sensor?
Sent from my A0001 using Tapatalk
Click to expand...
Click to collapse
Fingerprint scanner is quick and responsive. It died on me once but OnePlus had my phone replaced within a week.
Verstuurd vanaf mijn D6503 met Tapatalk

With the new update i m getting sot 4.5 hrs on stock rooted and bootloader locked.. Just use the phone as a phone and u see good results..
Sent from my ONE A2003 using Tapatalk

Today i read the oneplus 2 review on anandtech, after reading that i am really disappointed that how oneplus limits the power of Snapdragon 810. They made this phone a quadcore device.

sushant6786 said:
Today i read the oneplus 2 review on anandtech, after reading that i am really disappointed that how oneplus limits the power of Snapdragon 810. They made this phone a quadcore device.
Click to expand...
Click to collapse
It's not OP's fault. It's Snapdragon's. You effectively can't use it as an 8 core CPU because it will overheat quickly. Unless you throttle its frequency significantly.
So I guess we have to see the SD810 more as a medium fast 4 to 6 core processor that can, when needed, be ramped up to a fast 8 core CPU for a short amount of time (and by short I mean no longer than approx. 15 minutes, after which it will get too hot to keep all its cores at max. speed.)
Also, it's perfectly legitimate to shut down cores when they're not needed, as this will save battery. I usually have my phone running on only four cores for most apps, and even that is generous.

vonotny said:
It's not OP's fault. It's Snapdragon's. You effectively can't use it as an 8 core CPU because it will overheat quickly. Unless you throttle its frequency significantly.
So I guess we have to see the SD810 more as a medium fast 4 to 6 core processor that can, when needed, be ramped up to a fast 8 core CPU for a short amount of time (and by short I mean no longer than approx. 15 minutes, after which it will get too hot to keep all its cores at max. speed.)
Also, it's perfectly legitimate to shut down cores when they're not needed, as this will save battery. I usually have my phone running on only four cores for most apps, and even that is generous.
Click to expand...
Click to collapse
I guess i am okay with my bamboo edition oneplus one ?
Doesn't seem to be much of an upgrade from my Oneplus one anyway.
Sent from my A0001 using Tapatalk

vonotny said:
It's not OP's fault. It's Snapdragon's. You effectively can't use it as an 8 core CPU because it will overheat quickly. Unless you throttle its frequency significantly.
So I guess we have to see the SD810 more as a medium fast 4 to 6 core processor that can, when needed, be ramped up to a fast 8 core CPU for a short amount of time (and by short I mean no longer than approx. 15 minutes, after which it will get too hot to keep all its cores at max. speed.)
Also, it's perfectly legitimate to shut down cores when they're not needed, as this will save battery. I usually have my phone running on only four cores for most apps, and even that is generous.
Click to expand...
Click to collapse
I am not much in to technical details cause i am from a different field but this thing is bothering me.

OTG Doesn't work
have tried all kind of OTG cables and none of them work with OPT. HOWEVER all the OTG cables work with my OPO... such a shame omg....

sushant6786 said:
I am not much in to technical details cause i am from a different field but this thing is bothering me.
Click to expand...
Click to collapse
Ah, yes Flash the Boeffla kernel and you can make full-time use of all four A57 cores if you so wish.