• Announcements

    • Reminder - MoDaCo position on illegal content   07/30/15

      ILLEGAL CONTENT I'd like to just reaffirm MoDaCo's position regarding piracy and illegal content in the light of some recent questions / postings. Posts will be censored by myself or my moderation team if the contain or link to: Illegal / pirated / cracked software or sites that host such softwareNintendo emulators / ROMs or sites hosting them (in light of Nintendo's legal stance)CUSTOM ROMS You may discuss and post links to custom device ROMs on MoDaCo, provided the following rules are adhered to: ROMs must not contain any illegal 3rd party software (this includes trial versions included without permission)ROMs must give full credit to the original authorISSUES If you have any issues with this policy, please contact PaulOBrien directly via PM.
    • Reminder: Selling items on the forum directly is not allowed   07/30/15

      Please note that selling items on the forum directly is not allowed by the forum rules. There is a forum for eBay auctions whereby you can list the items on eBay and link to them there. This is the ONLY forum for this type of activity. You may also advertise links to the eBay forum in your signature. Please note that selling directly in contravention of these rules will result in a warning / suspension / ban.
Sign in to follow this  
Followers 0

Battery life mystery

6 posts in this topic

Posted

Battery life is a completely subjective measure. I might get 24 hours of usage on a device while someone else experiences 16 hours. I might call that average battery life whilst the other person could consider that good battery life. The measure depends on usage and how your usage is specifically handled by the device in question.

As I have personally used many devices this year, with broadly similar usage for each, it has become apparent that not all devices are equal in ways that I had never imagined. For instance, I generally don't demand more than around 3 hours of screen time each day and so radio performance becomes more critical for me. Some devices such as the HTC One have fantastic radio performance leading to wonderfully low idle drain giving me a good battery experience but its screen is fairly power hungry. The LG G2 on the other hand would give me far more screen time when I demanded it but had worse idle drain. The picture is extremely complex and unique to the individual.

One aspect of battery life that is far more objective though is when you experience unusually high battery drain in all scenarios, something that Android has been especially guilty of in the past. These days, the operating system and most mainstream apps are well enough optimised that this is not an issue, but in testing the Motorola Moto X, I came across this sort of terrible unexplained drain once more. I have spent close to 5 days debugging this issue and whilst the outcome of that process is not important here, it is useful to discuss some of the tools available and their relative merits.

Posted ImagePosted Image

The first step in this situation should be to look at the built in Android battery settings which give an excellent overview of what is using your battery. You can examine how long your screen has been active as well as how much battery is being used by some of your apps. It is also possible to see a battery graph showing how power has discharged over time. The graph also provides information on your signal quality - a major component of battery drain - and how long the device has been awake, though not necessarily with the screen on. It is this last piece of information that can prove most useful, if your device is awake a lot of the time without your screen being on, something is happening in the background.

What the built in tools cannot show you however, is what the Android OS itself is doing to your battery. All the services that make up the operating system are grouped into one item called "Android OS" and it is very hard to be sure which services make up this wide ranging category. It is also the case that this grouping will be different depending on which device is in use. This makes it very hard to be sure of what is actually happening with your battery when you experience unexplained battery drain.

Posted Image

Thankfully, the Android community is full of extremely clever and resourceful developers that have created a number of tools. BetterBatteryStats is one popular app, available in the Play Store, that can help you dive into which specific services are causing the dreaded wake locks as they are known. With Android 4.3 or later, App Opps Starter, also in the Play Store, can help you control the individual permissions that apps and services, including some built-in services, have been given allowing for a very granular look at what might be causing unexplained battery drain.

With these tools, it is possible to explain the unexplained, but it is a long and arduous process. To be sure that changes you have made are having the desired effect, it is necessary to leave the device for a number of hours in order to gather enough statistics to make a meaningful judgement. Frankly, it is extremely painful, but also quite rare these days to have to go through these arduous and complex processes in order to weed out badly behaving apps.

Many of you reading this will be thinking that at least we have such tools so that issues can be ironed out. And you are all right. On the iPhone for instance, Apple does not provide any tools for looking at what might be using your battery, so if there is an issue, almost nothing can be done without visiting an Apple store.

I still believe that Google can do better here. If you are going to build an operating system to run in a highly battery constrained environment and allow services to run in the background then you have a duty to help users when these services start misbehaving. Google did exactly that when they introduced the battery stats discussed before, but I think they should do more. A simple step would be to expose which services are causing the phone to remain awake with the screen off. An even simpler change might be to break down the Android OS entry in the battery stats in its granular components.

So what do you think? What advice can you give and have I missed any good tools that would have helped me in my recent battery debugging mission?

Click here to view the item

0

Share this post


Link to post
Share on other sites

Posted

 I still believe that Google can do better here. If you are going to build an operating system to run in a highly battery constrained environment and allow services to run in the background then you have a duty to help users when these services start misbehaving. Google did exactly that when they introduced the battery stats discussed before, but I think they should do more. A simple step would be to expose which services are causing the phone to remain awake with the screen off. An even simpler change might be to break down the Android OS entry in the battery stats in its granular components.
I agree with this completley, We should make a petition to Nag Google for this change! :D
0

Share this post


Link to post
Share on other sites

Posted

with my smartphone is the screen that consumes the most energy not the OS, maybe this is related to applications and operating widget

 

 

 

____________________________________________________________________________________________________________

ipad air acheter nexus 5

0

Share this post


Link to post
Share on other sites

Posted

I'm also experiencing these problems. But no application in general, this happens when I use the music player, but if I do not use, like the still spending. Use is "wakelock detector", but this does not detect as many faults, but tell me who spends much time awake. And reviewing the statistics says that the phone idle spends almost 45% of the running time, and the cell standby 10%

0

Share this post


Link to post
Share on other sites

Posted

So battery is important part for the phone. If we want a phone which can standby for a long time. we'd better choose the battery in larger. so it can make sure the phone can work well for a long time.

0

Share this post


Link to post
Share on other sites
Sign in to follow this  
Followers 0

MoDaCo is part of the MoDaCo.network, © Paul O'Brien 2002-2015. MoDaCo uses IntelliTxt technology.