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I was doing a bit of light reading in relation to overclocking these units, a lot of complaints about increased battery usage. I was wondering is it likewise possible to underclock to improve battery? I only really use mine for the calander and phone functions, and would love longer battery life.
There are experiments done on some other phone ( Wizard, I think. Definately not an Atom) on underclocking. On the clock low enough to be functional, the improvements in battery life is too little to be significant
http://forum.xda-developers.com/showthread.php?t=334406
http://forum.xda-developers.com/showthread.php?t=330222
read this 2 links it will help a lot
Cheers guys, I'll do some reading.
In the DInc forum more than probably any other forum on XDA, there is a copious amount of battery life related threads. How to extend your battery life, what kernel is best, what ROM is best, what extended batteries work, what applications will help, combinations of CPU and brightness, all kinds of jazz. Truth be told, most people who have come to a "solid conclusion" about what is best for their battery life are misleading themselves, and others. Why? Well..
#1. There are too many variables.
Your average joe who posts on here claiming they got XX amount of battery life compared to average joe number two's claim of getting YY hours tells no one anything. The fact of the matter is that in these phones, there are SO many things that act as variables on battery life that most people don't even consider. The obvious ones are data usage, WiFi connectivity, screen brightness, and CPU clocks to name a few. But what a lot of people don't consider are things like signal strength. My battery life personally is bad through the week because my school has absolutely terrible service. My battery life triples throughout the day with Airplane Mode on and WiFi enabled. It's well known in the cell phone consumer society that the better your signal is, the easier your radio will be on your battery. If you're teetering on very poor service, or none at all, your radio is constantly searching for signal so it can get you back on the network as soon as possible. This also applies to the WiFi radio. Some people leave theirs on all the time, some don't. Same for Bluetooth, GPS, anything. There are too many variables for your average person to cover to be able to accurately claim that "this app" or "this ROM" or "this method" does exactly "this" to your battery life.
#2. You're probably undereducated about how your battery works.
Don't get me wrong on this one, we have a lot of very intelligent people here at XDA, many far more intelligent than I, that keep this place rolling on a daily basis, but far too many of the people who try to make factual claims about battery life don't know what they're talking about. The most prolific example of this is the argument between total discharges, and interval charging. There are people who argue that allowing your battery to completely discharge and then charge back to full is the best way to preserve battery life. Then there are some who are adamant about charging whenever a charger is present, regardless of battery percentage. While very few of us here, myself included, are battery technicians or something of the sort, there is factual data to support the idea that Lithium Ion batteries do not have any sort of memory like NiCad and other batteries do. While this may be true, on the other hand, fully charging and discharging your phone allows it to more accurately determine what voltage your battery is producing and thus gives a better percentage reading. Your battery life percentage on your phone is no clear indicator and is nothing more than the phone's mathematical way of processing the output of the battery and translating it into a more useful term for people like you and I. This is why wiping battery stats and completely draining a fully charged battery seems to help with battery life, because you won't see as many violent drops in percentage because the phone can more accurately calculate the power usage. That being said, wiping battery stats does nothing more for you than that. It does not magically make your battery superpowered and won't make dinner for you.
#3. All batteries are different.
Extended batteries are an interesting thing. You can buy two of the same make and model from the same place, and the two batteries can perform completely differently. This is because no two batteries are the same. Quality control issues, differences in materials, shelf life, production date, and all kinds of other factors go into how well a battery will perform. Some people get great experiences from the $10 eBay batteries and some get experiences worse than stock. Some people see quadrupled life out of OEM extended batteries, and some see minimal gains. This also applies to the stock battery that comes with the phone. That being said, mAh ratings are also relative and not all batteries live up to their true claims. A battery said to operate at 2500 mAh may not ever reach that capacity and it may run at a true value of 2000 mAh. The case will rarely ever be reversed, but you see the point. Take battery specifications with a grain of salt, because you aren't always going to get what you pay for.
#4. All phones are different.
The hardware in your phone may or may not be the same as the hardware in my phone, and one of the biggest differences in the DInc with this respect is the SLCD and AMOLED screens. AMOLED screens can save or expel more battery than SLCD screens depending on what you are viewing. A person with an AMOLED who uses primarily dark-themed apps and a dark background may see better life than someone identical who uses light-themed apps and a lighter background. Not to mention that all of the hardware in these phones aren't identical and sometimes parts slip through with lower efficiencies or defects that may or may not affect your battery life, and you will likely never know.
#5. ROMs/Kernels behave erratically.
The Warm Z ROM I use on my phone might deliver totally different results for you than it does for me. Same goes for kernels. We have found time and time again that kernel and ROM changes are not universal for battery life and everybody gets different experiences. You have to try out what fits you, and if you're that interested in finding the perfect balance, you'll just have to try them all. That's a long, painstaking process, but there's no solid evidence to tell you what will be optimal for your setup.
Now...
All that being said, I want you to understand I am not bashing anyone who tries to make a good conclusive result for how to improve battery life. Some methods are common sense and surefire, and some are wives tales. There are some great threads on battery life and topics related to it, two of which I will link to here:
Effects of CPU Frequency and Screen Brightness on Power Consumption
Your Battery Gauge Is Lying To You
These are both by XDA Member byrong, and he uses principles of science and the scientific method to make conclusive data in relation to battery life and how certain variables affect it. He eliminated as many variables as possible in his study and produced linear data that coincides with common sense ideas relating to smartphones and battery life. Note he does not make claims of how long your battery will last, or what kind of effects to expect from each setting, but he produces solid data that allows you to make your own interpretation.
At the end of the day, battery life boils down to balancing out functionality for conservativeness. If you're the kind of person who doesn't need auto sync'ing and push notifications, then by all means disable those things and keep your phone alive a little longer. If you're always by a charger throughout your work day, leave it all on! It's all preference, and there is no solid set method to making your battery all it can be. No ROM, kernel, app, wipe, or other method is going to be the 'be-all-end-all' of battery life extension. Simply see what works for you, and take your own results with a grain of salt. If you test one method one day, and another one the next, and you see that method A gave you 4 more hours than method B, take into account that you were driving through an area with no signal on your way home from work during the usage of method B, or you were playing a game on method B or you did less browsing on method A. Keep your trials as scientific as possible if you want to get real solid results.
Above all, just use your phone and enjoy it. If you never go more than 12 hours without being around a charger, and your phone lasts 15 hours, there's no real purpose in trying to sacrifice more things you use and enjoy to try and get a bigger and better number. Charging a phone, even just a little bit, doesn't take forever, and you can get a valuable amount of juice out of 15 minutes on the plug. Use common sense and don't overthink it. Everybody uses something a little different. That's why we have these phones, because we all want something a little different.
Reserved for future use...
This is great; very informative. Thank you.
Sent from my Magnolia Incredible
Thank you. I plan on updating the second post with a more comprehensive set of links to other articles about battery life that may be found useful.
Cool "A person with an AMOLED who uses primarily dark-themed apps and a dark background may see better life than someone identical who uses light-themed apps and a lighter background"
I guess that's why my phone digs on the Magnolia Rom,
or at least Steves last version it was all black.
Excellent write up. We need more threads like this one by sensible authors who actually take the time to research the topic they are posting about. Thank you for adding knowledge and integrity to this community.
Much love my friend
When I get the chance I'll scour the forums to try and find some more useful threads on battery life and consolidate them here.
I'm planning on picking up a NST and have had a difficult time finding accounts of what the battery life is like with different usage patterns. I'm particularly interested in writing with an external keyboard but I think it would be a good reference to have a thread where people shared how many hours the battery lasts for depending on what they're doing with it. Has anybody done any sort of benchmarks with full cpu usage or anything like that?
The basic rule is that the Nook has a very long battery life unless it doesn't.
The thing that really kills it currently (so to speak) is using USB host mode.
There is a thread on current drain.
http://forum.xda-developers.com/showthread.php?t=2498187
The reason for this thread's existence is simple, to find the best combination of ROM+KERNEL for MIDO which yeilds the best battery life with optimised and good performance.
I request posters to:
1. Post atleast screenshots of one whole battery cycle with SOT (Screen on time) and battery graph.
2. The ROM which yeilds the described SOT with Kernel being used with it, preferably with Kernel settings if being used.
3. Any other battery optimisation made to yeilds more battery out of the phone such as GREENIFY or others.
NOTE: IF YOU CAN POST SCREENSHOTS OF GSAM BATTERY MONITOR TOO.
Thx guys.
Sorry to ask that but don't you think that this has no sense?
You can't include some important things into your comparison, like screen brightness, network usage, network coverage, network settings (2G/3G/LTE), sensor settings.
Even watching the same YouTube video in 720p or [email protected] on an identical device makes a huge difference. And this are really just a few examples...
Well thx for bringing that up!
SilentEYE said:
Sorry to ask that but don't you think that this has no sense?
You can't include some important things into your comparison, like screen brightness, network usage, network coverage, network settings (2G/3G/LTE), sensor settings.
Even watching the same YouTube video in 720p or [email protected] on an identical device makes a huge difference. And this are really just a few examples...
Click to expand...
Click to collapse
I did consider those except the sensor settings. i know the usage per person is different for everyone and also it depends on the battery deterioration too but i couldn't really ask ppl to explain all their intricate settings. I just want a good amount of data for ppl that helps them decide which rom and kernel to use.
ALSO I THINK PPL ARE SMART ENOUGH THAT THEY REALIZE IT DIFFERS FROM USAGE TO USAGE.
Thx for some insight.
Then you could make statistics with medium usage on different combinations.
For some basic stats you can also pick up the stats from "real screen on time" thread.
One more thing to consider is that some people have 18h SOT with 3 days of usage and this breaks the average usage time on this device by far (and is not representative at all on normal usage). Therefore you probably have to exclude the best and worst SOTs, to achieve comparable results, between the ROMs.
everybody say this battery awsome but i cant see this.
my s10 plus ceramic white 512 giga,battery drain very fast ihave only 1 houre screen and its on 80%
i used most of the time facebook,messenger,whats app and i can see every few min the battery drain 1 %
can it be because those app i use drain much power?
im writting alot on those message apps
plz your help how can i know if i have problem or not?
thx
Well 5 hours of heavy use isn't really bad
D4rkSoRRoW said:
Well 5 hours of heavy use isn't really bad
Click to expand...
Click to collapse
I'd call it bad. My Pixel 2 XL with a processor that is 2 generations old, a battery that is 15% smaller and 16 months old (batteries degrade over time) and a higher resolution (assuming Samsung phones still default to 1080p) still gets better battery life than the Galaxy S10+.
bubu23 said:
everybody say this battery awsome but i cant see this.
my s10 plus ceramic white 512 giga,battery drain very fast ihave only 1 houre screen and its on 80%
i used most of the time facebook,messenger,whats app and i can see every few min the battery drain 1 %
can it be because those app i use drain much power?
im writting alot on those message apps
plz your help how can i know if i have problem or not?
thx
Click to expand...
Click to collapse
Exynos or Snapdragon? I believe a majority of the Exynos users have reported horrible battery drain on idle (I know of just one exception). On Snapdragon the information is less clear at this stage.
i thought it was just me. using exynos and i do believe battery drain is crazy
RockyAJ said:
i thought it was just me. using exynos and i do believe battery drain is crazy
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Click to collapse
thx my friend iv got exynos !!!! SM-G975F
Same here. The exynos is a real ****. Less than 5 hours of battery
With the Mate 20 pro i had 6 hours
Pie takes about a week to get used to your usage, you shouldn't really focus on the battery so much until then.
Also stop using crappy apps, even Facebook can have completely different drains on different phones of the same model, having such crappy apps gives you no right to complain about battery, you're trying to have a healthy life with a parasite inside you.
Some Reddit idiots are using this post to criticize Exynos since they couldn't believe how good battery life is according to official tests, don't give them coal.
Corv0 said:
Pie takes about a week to get used to your usage, you shouldn't really focus on the battery so much until then.
Also stop using crappy apps, even Facebook can have completely different drains on different phones of the same model, having such crappy apps gives you no right to complain about battery, you're trying to have a healthy life with a parasite inside you.
Some Reddit idiots are using this post to criticize Exynos since they couldn't believe how good battery life is according to official tests, don't give them coal.
Click to expand...
Click to collapse
The Facebook app is pretty good on battery life. It's MUCH better than the alternative of viewing Facebook in a web browser. Chrome uses more battery than the Facebook app and Samsung's browser sucks for battery life. And if someone wants to use Facebook or other apps you can crappy why even have such a high end phone?
I'm curious what "official" tests you are referring to? Claims from Samsung? Those never represent real world usage.
jimv1983 said:
The Facebook app is pretty good on battery life. It's MUCH better than the alternative of viewing Facebook in a web browser. Chrome uses more battery than the Facebook app and Samsung's browser sucks for battery life. And if someone wants to use Facebook or other apps you can crappy why even have such a high end phone?
I'm curious what "official" tests you are referring to? Claims from Samsung? Those never represent real world usage.
Click to expand...
Click to collapse
Seriously? Do you have any idea of how web view apps work?
Facebook is literally a web element viewer, a custom browser with a TON of bloatware around, autoplay, continuous telemetries, and its own message push system. If you think it's good for battery life then your overall battery life probably sucks and you don't even know it.
The alternative is not Chrome but one of the many apps that put together web's mobile facebook and activate messenger options.
So now, since you have a high end phone, you can't use facebook or other apps? Where's your logic?
With official tests I was referring to GSMarena, Mrwhostheboss and many others, that's as official as it gets, since statistics from corporations aren't to be trusted.
Corv0 said:
Seriously? Do you have any idea of how web view apps work?
Facebook is literally a web element viewer, a custom browser with a TON of bloatware around, autoplay, continuous telemetries, and its own message push system. If you think it's good for battery life then your overall battery life probably sucks and you don't even know it.
The alternative is not Chrome but one of the many apps that put together web's mobile facebook and activate messenger options.
So now, since you have a high end phone, you can't use facebook or other apps? Where's your logic?
With official tests I was referring to GSMarena, Mrwhostheboss and many others, that's as official as it gets, since statistics from corporations aren't to be trusted.
Click to expand...
Click to collapse
The Android Facebook app isn't just a wrapper around a web app. It was in the past but hasn't been for a long time. It's a native Android app. The battery life of the Facebook app is far better than you get in a browser. With the Facebook app I get about 8 minutes per 1% of battery. Chrome, on average, gets about 6 minutes per 1% of battery. That's 33% longer when using the Facebook app.
I'm curious about the other apps you are talking about. I've used one or two Facebook app alternatives in the past and not were as good as the official app.
The battery life tests from GSMArena are basically useless. They don't at all reflect real world usage and even under their very unrealistic test conditions still weren't even close to being accurate.
Look at what the average person is getting. It's not great considering the hardware and what other phones get with lower specs.
jimv1983 said:
The Android Facebook app isn't just a wrapper around a web app. It was in the past but hasn't been for a long time. It's a native Android app. The battery life of the Facebook app is far better than you get in a browser. With the Facebook app I get about 8 minutes per 1% of battery. Chrome, on average, gets about 6 minutes per 1% of battery. That's 33% longer when using the Facebook app.
I'm curious about the other apps you are talking about. I've used one or two Facebook app alternatives in the past and not were as good as the official app.
The battery life tests from GSMArena are basically useless. They don't at all reflect real world usage and even under their very unrealistic test conditions still weren't even close to being accurate.
Look at what the average person is getting. It's not great considering the hardware and what other phones get with lower specs.
Click to expand...
Click to collapse
You failed to consider how much the Facebook app drains battery when it's not being used. I can tell you this. With Facebook app installed drain is approx 1.6% hour or more in standby mode with the app deleted it goes down to 0.6 to 1% per hour screen off standby drain. In essence the Facebook app is a battery hog.
Sent from my SM-N960U1 using Tapatalk
jimv1983 said:
The Android Facebook app isn't just a wrapper around a web app. It was in the past but hasn't been for a long time. It's a native Android app. The battery life of the Facebook app is far better than you get in a browser. With the Facebook app I get about 8 minutes per 1% of battery. Chrome, on average, gets about 6 minutes per 1% of battery. That's 33% longer when using the Facebook app.
I'm curious about the other apps you are talking about. I've used one or two Facebook app alternatives in the past and not were as good as the official app.
The battery life tests from GSMArena are basically useless. They don't at all reflect real world usage and even under their very unrealistic test conditions still weren't even close to being accurate.
Look at what the average person is getting. It's not great considering the hardware and what other phones get with lower specs.
Click to expand...
Click to collapse
It's not a web wrapper in that way, but it just borrows XML elements from the same source, it performs better than HTML in that way, but they use the extra performance gain to shove more stuff in the same screen.
8 minutes per % means you can total more than 13h of SoT, so you either have a midrange device with an oversized battery, or your battery calibration isn't on point between start and end of power.
Different people could be more or less active on Facebook, that can influence the kind of content the app processes and its pace, but the biggest problem with their app as Limeybastard mentioned, is the background drain, which is null with an alternative wrapper or web.
Limeybastard said:
You failed to consider how much the Facebook app drains battery when it's not being used. I can tell you this. With Facebook app installed drain is approx 1.6% hour or more in standby mode with the app deleted it goes down to 0.6 to 1% per hour screen off standby drain. In essence the Facebook app is a battery hog.
Click to expand...
Click to collapse
What if you disable ALL notifications within the app? Does that help?
latino147 said:
What if you disable ALL notifications within the app? Does that help?
Click to expand...
Click to collapse
No, the system still receives them, it just refuses to show them to the user.
If you suspect an app sucking too much power just get rid of it and leave feedback, if you really need to use it then there are utilities like Brevent that can suspend/kill apps at will, they just need adb permissions once.
Corv0 said:
No, the system still receives them, it just refuses to show them to the user.
If you suspect an app sucking too much power just get rid of it and leave feedback, if you really need to use it then there are utilities like Brevent that can suspend/kill apps at will, they just need adb permissions once.
Click to expand...
Click to collapse
Is there no easier way to 'freeze' them? Greenify for example?
latino147 said:
Is there no easier way to 'freeze' them? Greenify for example?
Click to expand...
Click to collapse
Settings>Device Care>Battery> in the Right TOP 3 dots option>Settings>Sleeping apps
1st Day using my S10 normally.
Battery life is actually very disappointing. The phone feels hot in hand. Exynos chips....
bubu23 said:
everybody say this battery awsome but i cant see this.
my s10 plus ceramic white 512 giga,battery drain very fast ihave only 1 houre screen and its on 80%
i used most of the time facebook,messenger,whats app and i can see every few min the battery drain 1 %
can it be because those app i use drain much power?
im writting alot on those message apps
plz your help how can i know if i have problem or not?
thx
Click to expand...
Click to collapse
If you're getting only 1 hour of SOT you should return the device. That's nowhere near normal battery characteristics for any smartphone.
From my understanding the first few charge cycles will be disappointing until the phone learns your usage patterns. My battery on the pixel 3 xl was horrid when I first got it, barely 2h of screen time but after a week or so I was seeing spikes of 5-6h sot. It's a brand new phone, have to break it in.