Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




22 posts

Geek
+1 received by user: 1


Topic # 144029 5-May-2014 13:52
Send private message

So I have a Galaxy SIII that I purchased from Warehouse Stationery (2Degrees) and used it on Telecom's network for the past year and a half.

The new Freedom plan ($29 for 1GB data, 300 min, carryover) had convinced me to switch to 2Degrees again a few days ago.

The problem is, my battery life has rapidly deteriorated. I checked it today at 1.30 and it was at 54% - I hadn't turned the screen on since 9am when it was sitting at 82%

 

I looked at the battery stats and it shows 19% usage by the Android OS, 15% Device Idle, 13% Cell Standby. This seems a lot higher than I ever experienced on Telecom. Also most of the time the mobile signal was yellow. I'm in the Wellington CBD most of the day. 

 

Does anyone have any experience with this, or any helpful tips to improve my battery life? It could be enough to get me to change back to Telecom.

View this topic in a long page with up to 500 replies per page Create new topic
 1 | 2
Fully Operational
3343 posts

Uber Geek
+1 received by user: 1088

Trusted
Vocus
Subscriber

  Reply # 1037015 5-May-2014 14:05
One person supports this post
Send private message

It's probably related to fast dormancy... Root your phone and switch it to see if it helps.  XT doesn't have it, the other two networks do afaik.  If the network has it and your phone does not it can be bad for battery life.

https://play.google.com/store/apps/details?id=com.gokhanmoral.fastdormancytoggle.i9300

edit: see here for more info: http://www.androidnz.net/2012/06/at-your-own-risk-how-to-disable-fast.html




Aussie
3860 posts

Uber Geek
+1 received by user: 996

Trusted
Subscriber

  Reply # 1037025 5-May-2014 14:09
Send private message



Edit: Beaten to it!

 
 
 
 


25472 posts

Uber Geek
+1 received by user: 5276

Moderator
Trusted
Biddle Corp
Subscriber

  Reply # 1037056 5-May-2014 14:57
Send private message

Except a 2d handset will have the correct fast dormancy settings configured for the 2d network (which I believe is on). If it was fast dormancy battery life on XT would have been worse.

Does the handset have 2d firmware on it? How is your signal strength?





22 posts

Geek
+1 received by user: 1


  Reply # 1037090 5-May-2014 15:41
Send private message

sbiddle: Except a 2d handset will have the correct fast dormancy settings configured for the 2d network (which I believe is on). If it was fast dormancy battery life on XT would have been worse.

Does the handset have 2d firmware on it? How is your signal strength?




I had originally rooted it to turn off fast dormancy, but then I unrooted it when the most recent update came out and never needed to re-root it (I didn't notice any real difference from the toggle). I can try rooting it again tonight to see if toggling fast dormancy makes a difference.

Can I check if FD is turned on before rooting?

2033 posts

Uber Geek
+1 received by user: 975


  Reply # 1037759 6-May-2014 15:10
Send private message

You haven't inadvertently turned on Wifi or GPS??? They're battery killers.

Fully Operational
3343 posts

Uber Geek
+1 received by user: 1088

Trusted
Vocus
Subscriber

  Reply # 1037760 6-May-2014 15:13
Send private message

sbiddle: Except a 2d handset will have the correct fast dormancy settings configured for the 2d network (which I believe is on). If it was fast dormancy battery life on XT would have been worse.

Does the handset have 2d firmware on it? How is your signal strength?




Handset with FD on on network without is less bad than the alternative.  But if the default is in deed FD on then it's not that.  Just the only thing really related to the network (aside from signal strength, low signal strength is another battery killer)

575 posts

Ultimate Geek
+1 received by user: 46


  Reply # 1037945 6-May-2014 20:44
Send private message

frankv: You haven't inadvertently turned on Wifi or GPS??? They're battery killers.

I've seen this said a few times, but there are good reasons why you shouldn't just take these "facts" as gospel.

GPS only uses battery when something is using it. Unless there's some app that frequently/constantly asks for your GPS location (which you can see happening in status bar), it should have any appreciable effect on battery life.

WiFi should also be much more efficient than 3G or LTE when it comes to battery usage. WiFi typically needs to transmit over a short distance, maybe 30m at most, which means it only needs a low transmit power. Cell towers are hundreds of metres or even kilometres away, requiring much more transmit power. 2G connections are more efficient because they make use of a channel that's open anyway.

I can personally verify that 3G uses a lot more battery than WiFi. With both my old S2 and current S4, battery usage is at least 50% more on cellular data than it is on WiFi. I doubt the S3 is any different.

That being said, both of these phones were on the 2degrees network. I would not be at all surprised if they are both affected by whatever is affecting nzapter's S3, causing higher battery usage than expected.

2033 posts

Uber Geek
+1 received by user: 975


  Reply # 1037991 6-May-2014 22:08
Send private message

nzgeek:
WiFi should also be much more efficient than 3G or LTE when it comes to battery usage. WiFi typically needs to transmit over a short distance, maybe 30m at most, which means it only needs a low transmit power.


Not completely true... basically, the higher the speed and/or distance, the higher the power required.


That being said, both of these phones were on the 2degrees network. I would not be at all surprised if they are both affected by whatever is affecting nzapter's S3, causing higher battery usage than expected.


Yeah, I was just throwing those ideas out there to make sure the obvious hadn't been overlooked.


13173 posts

Uber Geek
+1 received by user: 2195

Trusted
Subscriber

  Reply # 1038048 7-May-2014 07:13
Send private message

Having location services turned on can drain the battery more quickly even if they're not being used, in my experience. They may have fixed it by now, I haven't tried it in a few months.




AWS Certified Solution Architect Professional, Sysop Administrator Associate, and Developer Associate
TOGAF certified enterprise architect
Professional photographer


2386 posts

Uber Geek
+1 received by user: 420


  Reply # 1038059 7-May-2014 07:51
Send private message

Is it worth doing a complete reset of the phone. Just to try and eliminate any other software causing issues?




Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler

2715 posts

Uber Geek
+1 received by user: 133

Trusted

  Reply # 1038492 7-May-2014 17:42
Send private message

If it's a 2degrees phone it shouldn't be a problem with fast dormancy since it should have been disabled by default and would have caused problems on Telecom. It sounds like it is probably an issue with reception strength - 2degrees have pretty terrible signal, especially inside buildings. 




Lead Consultant @Intergen
All comments are my own opinion, and not that of my employer unless explicitly stated.




22 posts

Geek
+1 received by user: 1


  Reply # 1038570 7-May-2014 20:02
Send private message

lokhor: If it's a 2degrees phone it shouldn't be a problem with fast dormancy since it should have been disabled by default and would have caused problems on Telecom. It sounds like it is probably an issue with reception strength - 2degrees have pretty terrible signal, especially inside buildings. 


Yeah I think this is it. The signal is poor most of the day :/ I was really hoping that being in Wellington it would be alright, but sometimes in the CBD I can't get mobile data working. It's very disappointing.

2715 posts

Uber Geek
+1 received by user: 133

Trusted

  Reply # 1039125 8-May-2014 14:41
Send private message

nzapster:
lokhor: If it's a 2degrees phone it shouldn't be a problem with fast dormancy since it should have been disabled by default and would have caused problems on Telecom. It sounds like it is probably an issue with reception strength - 2degrees have pretty terrible signal, especially inside buildings. 


Yeah I think this is it. The signal is poor most of the day :/ I was really hoping that being in Wellington it would be alright, but sometimes in the CBD I can't get mobile data working. It's very disappointing.


Yeah not surprising though, I think 2degrees typically use 2100mhz in Wellington CBD which has pretty awful building penetration. Vodafone used to be pretty awful but they have started rolling out 900mhz towers even in town and their LTE coverage is pretty good too. Telecom uses 850mhz for their 3G network which is basically the bees knees for signal strength in buildings. 




Lead Consultant @Intergen
All comments are my own opinion, and not that of my employer unless explicitly stated.


2051 posts

Uber Geek
+1 received by user: 498


  Reply # 1040956 9-May-2014 17:48
Send private message

Is this a Telecom or 2degrees S3? Does it say Telecom when you turn it on?



22 posts

Geek
+1 received by user: 1


  Reply # 1041029 9-May-2014 19:06
Send private message

Yabanize: Is this a Telecom or 2degrees S3? Does it say Telecom when you turn it on?


As it says in the OP, 2 Degrees. No Telecom branding.

 1 | 2
View this topic in a long page with up to 500 replies per page Create new topic



Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Vocus New Zealand on the block as Aussies bail
Posted 23-Oct-2017 17:06


Vodafone TV — television in the cloud
Posted 17-Oct-2017 19:29


Nokia 8 review: Classy midrange pure Android phone
Posted 16-Oct-2017 07:27


Why carriers might want to embrace Commerce Commission study, MVNOs
Posted 13-Oct-2017 09:42


Fitbit launches Ionic, its health and fitness smartwatch
Posted 12-Oct-2017 15:52


Xero launches machine learning automation to improve coding accuracy for small businesses
Posted 12-Oct-2017 15:45


Bank of New Zealand uses Intel AI to detect financial crime
Posted 12-Oct-2017 15:39


Sony launches Xperia XZ1, a smartphone with real-time 3D capture
Posted 11-Oct-2017 10:26


Notes on Nokia’s phone comeback
Posted 10-Oct-2017 10:06


Air New Zealand begins Inflight Wi-Fi rollout
Posted 9-Oct-2017 20:16


The latest mobile phones in perspective
Posted 9-Oct-2017 18:34


Review: Acronis True Image 2018 — serious backup
Posted 8-Oct-2017 11:22


Lenovo launches ThinkPad Anniversary Edition 25
Posted 7-Oct-2017 23:16


Less fone, more tech as Vodafone gets brand make-over
Posted 6-Oct-2017 08:16


API Talent Achieves AWS MSP Partner Status
Posted 5-Oct-2017 21:20



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.