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5 myths about improving your smartphone battery life

0. phoneArena 25 Aug 2012, 03:00 posted on

Ah, battery life! The one thing your friends with a feature phone can still ridicule your brand new iPhone, Galaxy S III, or whatever shiny smartphone you have there…

This is a discussion for a news. To read the whole news, click here

posted on 25 Aug 2012, 03:18 23

1. Nookie4u (Posts: 133; Member since: 13 Aug 2012)


Thnx 4 this useful article, a lot of people thought those myths were true. It's real helpful (:

posted on 25 Aug 2012, 07:07 1

18. dickwyn (Posts: 621; Member since: 07 May 2012)


still with all this tips the battery life on my Note is still as bad

posted on 25 Aug 2012, 07:35 3

20. Nookie4u (Posts: 133; Member since: 13 Aug 2012)


I might have to alter that a little, in personal exp, i once forgot to turn off the camera app and it uses gps to locate itself so it was showing near-full battery before i turned the screen off. but when i picked it up next time (7-8 hours later) Boom! it was near death. i was quite surprised coz i usually get 2 days of average usage on it.

posted on 25 Aug 2012, 03:49 5

2. TheLibertine (Posts: 484; Member since: 15 Jan 2012)


Yeah, good article.
But the last one is where I have some doubts. You know, I am an iPad user and the auto-brightness works just great: I use auto-brightness and don't have to care about brightness anymore.
But the point is: brightness makes a HUGE difference in battery life here. With full brightness (that just hurts the eye when not in direct sunlight) the iPad dies in around seven hours. With half the brightness, which fits most cases and still is pretty bright, I get around ten and a half hours. With 20% brightness which is usable in a dark room only about fifteen hours seem achievable (it looses 7% a hour plus the first percent on the iPad lasts about an hour).

So, most of you knew it. The point is: with auto brightness all the day along I get around twelve hours of usage. That is more than average and as such, auto brightness is a great battery saver for me.
So maybe it's just not that great on smartphones, the iPhone or Android phones.

posted on 25 Aug 2012, 07:56

22. TylerGrunter (Posts: 1533; Member since: 16 Feb 2012)


It´s normal that it´s a big saviour on the iPad, with the high resolution and the 10 inches screen. Probably the screen sucks most of the battery life out of the tablet. Same for most 10 inches tablets too.
For phones the screen also makes a difference, just not such a huge one. Again that depends on the size of the screen, the technology and the resolution. But in any case not such a big difference.

posted on 25 Aug 2012, 04:13

3. li0nh3art (Posts: 28; Member since: 05 Aug 2012)


Very useful stuff here. Thanks for the guide!

posted on 25 Aug 2012, 04:17 7

4. Hunt3rj2 (Posts: 396; Member since: 11 Nov 2011)


WiFi scanning can take a lot of battery life if it happens too often. Bluetooth can have the same problem. GPS only takes up battery life when something uses the fine position permission, but turning it off usually means that anything that uses GPS would use cell location instead.

Some devices do need calibration of their battery, but only if the phone shuts off before 0%.

posted on 25 Aug 2012, 09:01 2

25. -box- (Posts: 3991; Member since: 04 Jan 2012)


There's also a security aspect, as well. If a regular user leaves WiFi and Bluetooth on without setting exceptions (only connect upon user command and with verified password, or no open networks, etc) ot leaves a metaphorical door open that a malicious person or program can exploit.

posted on 26 Aug 2012, 00:27

42. Hunt3rj2 (Posts: 396; Member since: 11 Nov 2011)


I especially do not trust connecting to public wifi networks because it's very easy to intercept packets and hijack logins. With a rooted Android device it's very easy to intercept someone's internet connection to something like facebook and use facebook under their account to steal information, and to present fake webpages that redirect people to phishing websites.

posted on 25 Aug 2012, 04:20 14

5. Sniggly (Posts: 7305; Member since: 05 Dec 2009)


I have to call bulls**t on some of these.

Before a coworker of mine knew about task management on the Galaxy S 3, he had awful battery life. Once I showed him how to shut down apps (via pressing and holding the home button and swiping across the thumbnails) he reported way better battery life.

Also, I've used live wallpapers, and then used the phone without them. Live wallpapers always hurt my battery life significantly. Battery life always improves without them on by a noticeable margin.

posted on 25 Aug 2012, 06:27 3

15. frydaexiii (Posts: 1460; Member since: 01 Dec 2011)


Wait, I thought the swiping across thumbnails were just clearing the recent apps away, not clearing the ram?

Samsung's Task Manager doesn't show a difference in RAM after swiping

posted on 26 Aug 2012, 00:29

43. Hunt3rj2 (Posts: 396; Member since: 11 Nov 2011)


The only thing they might do is send a "done" signal to the system, which would probably make it so that if the application has already been put to standby in RAM mode, it is marked as okay to clear from RAM if OOM killer activates.

posted on 26 Aug 2012, 15:40

45. dmckay12 (Posts: 243; Member since: 25 Feb 2012)


It clears the recent apps out of the RAM.

posted on 25 Aug 2012, 06:55 5

16. protozeloz (Posts: 5396; Member since: 16 Sep 2010)


ha! placebo, that does not clean ram at all and no TASK killers may even drain your battery more, why? because some process are persistent, when they are to do something you need to leave them be

posted on 25 Aug 2012, 06:59

17. protozeloz (Posts: 5396; Member since: 16 Sep 2010)


http://www.extremetech.com/computing/112013-how-multitasking-works-on-android-and-ios

posted on 25 Aug 2012, 07:30 1

19. casbah70 (Posts: 16; Member since: 21 Jun 2011)


Same here. I've seen a significant difference in battery life, when only changing the live wallpaper.

posted on 25 Aug 2012, 04:35 1

6. senotrius (Posts: 4; Member since: 01 Aug 2012)


All the above are true if u have 3000+mah battery,huge rams.real life-android barely makes it 24hours.I'm a fanboy but my sgs just lasts half a day or max till evening.if used the way a smartphone is supposed to be ur looking at 2 to 5 hours max.
1.amoled screens-just put on full brightness and connect to a charger :charge decreases despite the charger!
2.task managers-if android was perfect these would not exist. Unfortunately android autostarts virtually everything.super lag.eventually my ram is at 46mb free and I have to manually kill everything!autostart managers kinda help out but still the usesble ram just decreases.auto starting is not the way for multitaskin-android should evolve.it does not decrease battery life nonetheless.
3.live wallpapers-depends.the more fancy ones take ram/battery.but most nowadays don't.
4.WiFi,GPS and Bluetooth. are u sure-these don't let the phone go to deep idle really.which saves battery a Lil. its a smartphone ,the thing is always syncing or scanning or what not.
5.the absolute biggest killer is packet data/3g/4g.my phone lasts exactly 1hour plus a couple of minute if u browse internet(2g at that!).screen is a huge factor thou.so put packet data off whenever possible.

posted on 25 Aug 2012, 04:36

7. jmreekes (Posts: 4; Member since: 07 Sep 2011)


"Before a coworker of mine knew about task management on the Galaxy S 3, he had awful battery life. Once I showed him how to shut down apps (via pressing and holding the home button and swiping across the thumbnails) he reported way better battery life."

I think he was referring to the task manager apps that you see floating around the app store and Google play store.

posted on 25 Aug 2012, 04:47 4

8. Sniggly (Posts: 7305; Member since: 05 Dec 2009)


Now, if he's referring to Advanced Task Killer, I agree. That app has been useless since 2.2. However, one that I used by Futon Redemption still got the job done, because it served as a shortcut to the settings where I could force stop whatever was running.

The best task manager I ever saw before 4.0 was Motorola's. It made visible EVERYTHING that was running, even background services from apps, and told me how much RAM they were using. It was a real eye opener.

posted on 25 Aug 2012, 04:55

9. pikapowerize (banned) (Posts: 1869; Member since: 03 May 2012)


so how will you save the life of your battery then?

posted on 25 Aug 2012, 05:06 2

10. joaolx (Posts: 364; Member since: 16 Aug 2011)


Some of this things make a huge difference when talking about a 600Mhz cpu. Because my phone has to struggle and use more power to hold the live wallpaper and the screen brightness makes a huge difference. And so does the wifi.

posted on 25 Aug 2012, 05:19 1

11. spiderpig2894 (Posts: 594; Member since: 10 Jan 2012)


For me, WiFi and Bluetooth matters battery life because I can see a little decrease on it. I don't worry about turning off WiFi because I don't use carrier data.

posted on 25 Aug 2012, 05:28 2

12. rahulcena5565 (Posts: 57; Member since: 01 Nov 2010)


Come to iOS for battery Life!

posted on 25 Aug 2012, 05:35 8

13. Sniggly (Posts: 7305; Member since: 05 Dec 2009)


I know that you're probably being sarcastic, but I'll remind everyone of the Razr Maxx anyway, and then pimp away.

posted on 25 Aug 2012, 14:04

37. tedkord (Posts: 12199; Member since: 17 Jun 2009)


At this point I wouldn't buy an iOS device if all other devices had razor blade edges.

posted on 25 Aug 2012, 07:36 1

21. kingpet13 (Posts: 139; Member since: 02 Feb 2012)


Like sniggly said, you're probably being sarcastic, but I'll still ask for the top complaint from ios users. Battery Life.

posted on 25 Aug 2012, 09:04 2

26. -box- (Posts: 3991; Member since: 04 Jan 2012)


That's like saying "Come to Syria and Turkey for low hotel rates!"

posted on 25 Aug 2012, 13:59

34. rusticguy (Posts: 2828; Member since: 11 Aug 2012)


Never ...

posted on 25 Aug 2012, 15:34 1

40. GoBears (Posts: 451; Member since: 27 Apr 2012)


Yeah because it's so tiny and boring you don't want to use it. Bam, instant battery life.

posted on 25 Aug 2012, 06:11 1

14. Droid_X_Doug (Posts: 5993; Member since: 22 Dec 2010)


The best thing you can do to maximize battery life if you have an LTE phone in a marginal signal area is turn off the LTE radio. The phone will kill the battery trying to make a 4g connection. Even with ICS v. 4.0.4

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