Does battery calibration make a difference?! - T-Mobile Samsung Galaxy S II SGH-T989

As many of you know there's a battery calibration app to use after flashing roms to wipe battery stats and improve battery. Sometimes I use it sometimes I don't... Just wondering if it actually made a big difference but I can never tell. Just thought I'd ask
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v3rsatile23 said:
As many of you know there's a battery calibration app to use after flashing roms to wipe battery stats and improve battery. Sometimes I use it sometimes I don't... Just wondering if it actually made a big difference but I can never tell. Just thought I'd ask
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In my personal experience with the nexus one, htc desire and now the t989, it makes no difference that I can notice

No. It's snake oil.
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The battery stats file is essentially a log of what is using your battery. It has no effect on the performance of your battery.
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Related

Battery ideas?

So I'm running a 2100 m a h extended life battery and I know I should be getting better life than this. I'm running 4.1 jelly bean on cdma phone, stock kernel. I also have the app killer checked on, and my screen brightness is pretty low. I've been having my wifi at home but still for 4 hours in 40 percent screen time that's really bad numbers. just wondering if anybody has any input
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Forgot the pic. Lol
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Uninstall your task killer, those do more harm than good. And download BetterBatteryStats to see what is draining your battery.
More likely it's your apps that are causing it to drain very badly. Any shady looking apps I would uninstall. And like above me, do those both as well.
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chlehqls said:
More likely it's your apps that are causing it to drain very badly. Any shady looking apps I would uninstall. And like above me, do those both as well.
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well the app killer is just in the settings of my phone . its not downloaded.
Fstall303 said:
well the app killer is just in the settings of my phone . its not downloaded.
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What setting is this? And don't use it.
You may want to use the Better Battery stats application to check for wake locks.
Trying a different kernel may also help. The Faux kernel works well for myself.
Lastly, the standby time doesn't give as much insight into your battery life as well as screen on time does. What kind of screen on time are you getting?
Note: don't use task killers, and don't manually kill applications.
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In Dev options
Fstall303 said:
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In Dev options
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Uncheck that, will only do harm.
Ngo93 said:
Uncheck that, will only do harm.
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With what ROM are you using fauxs kernel with?
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isinisterx said:
With what ROM are you using fauxs kernel with?
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I'm using Trinity, the poster 2 above me is the 1 on Faux
Wow your right. First for some reason I couldn't even click back on x d a developers app kept force closing and after I check that I can finally go back didn't think that would effect so much
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Turn off any app killing, as you've done.
In your screenshot, you had a lot of calls, that'll do it too, so battery life can vary.
Here is today's. I don't get it. 2100 math battery low brightness display
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Why is task killing worse than good?
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I am not sure about the stock app killer but any 3rd party app killer is constantly scanning your phone looking for apps running even if there is none so it's constantly using battery power
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Android OS stays awake and kills my battery

So I have unbricked my phone and have flashed cm9 and fullthrottle now I'm on the official ics from att. My phone has been dying quickly. I checked my battery stats and seen android OS in my number 2 spot. Today I unplugged my phone and didn't use it for two hrs and it went down 5% I checked and android os stayed away 1 hr and 53 mins.
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This is the screen shot after having it on for 8 hrs and I was at work and I only used a couple times
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Same thing on my end. LG really screwed this up.
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You need to install the better battery stats app and see which app is giving you wake locks.
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Malnilion said:
You need to install the better battery stats app and see which app is giving you wake locks.
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Yep, install better battery stat, it's even free for XDA member, search the app forum.
kenship said:
Yep, install better battery stat, it's even free for XDA member, search the app forum.
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Also, there's a thread called "known identified battery drainers" in the ATT GS2/I777 forums that has some good, universal stuff on interpreting wakelocks.
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any luck solving this?
I tried flashing this from 3 times wiping everything and still get the android os taking most of my battery. I tried better battery stats but can really interpret it. I don't have facebook link or instagram. I'll post pics of better battery stats.
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miguellopez12 said:
I tried flashing this from 3 times wiping everything and still get the android os taking most of my battery. I tried better battery stats but can really interpret it. I don't have facebook link or instagram. I'll post pics of better battery stats.
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Did you flash through CWM or using LG's official tool from a computer?
O flashed through CWM
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miguellopez12 said:
O flashed through CWM
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I'd suggest disabling stock apps you don't need, I guess. Most people seem to think the battery life on that ROM is decent.
I always disable the att apps that come with the stock from. I get about 10 hrs on medium use with the extended battery. If this was fixed then I would get way more
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same issue
I never even thought to check into that as I have also had bad battery life, but figured it was just the nitro. New to rooting LG's as I had samsungs before. I am having the same exact issue running OH!NO! Full Throttle 7.1 and never realized it.. Is it just settings that are not allowing it to sleep?
I have no clue but there is something that is keeping the phone awake and not letting gp to sleep which is really hurting the battery life
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i definitely recommend getting juice defender. it made a HUGE difference in my battery life.
I tried it but it didn't help much just turned off the data. The only thing that really helped was to go into app settings and disable android and it has helped some
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I have the same issue. Android OS is (or was) the best battery killer. AT&T support person told me to do factory reset AND DO NOT INSTALL any app that are not preinstalled. I have to install them later one by one to find one incompatible with ICS.
After reset operation (happened 2 hours before) I have now Screen as the best battery killer Battery went from 77% down to 62% with some browsing and preinstalled apps update. It looks promising...

White MMS equals battery life drain?

I was just wondering will the stock white mms for the Epic consume a LOT of battery life, or just a bit?
Just a silyl question because I'm obsessed with battery life.
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Just a bit. Of course that depends on screen brightness and how long you leave the screen on for.
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kennyglass123 said:
Just a bit. Of course that depends on screen brightness and how long you leave the screen on for.
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My brightness is always at the lowest setting and usually about a minute or so for texts.
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TaviRawr said:
My brightness is always at the lowest setting and usually about a minute or so for texts.
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You won't notice the difference then. Maybe a single percent at the end of the day with a lot of texts.
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White backgrounds more power drain...
TaviRawr said:
I was just wondering will the stock white mms for the Epic consume a LOT of battery life, or just a bit?
Just a silyl question because I'm obsessed with battery life.
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Yes, white backgrounds would consume more power then their black counter parts... but it is also a matter of how high you set the screen's brightness for how much power the display will consume. I would suggest that you Play around with your settings and lower your brightness as low as possible so you can read it. You could also purchase an extended battery like myself... so you do not have to worry about those issues as much!
I got a 1800 meh battery. Not really extended but an hour or two more juice. And the white, really doesn't take up battery life. Maybe (for my phone) 1-4% thru the whole day, but not bad
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Google search question

Since updating to job I for the life of me cannot figure out how to search on Google search bar and make it a specific time or date like I did in ICS. Anyone know how to do this?
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Guess I'll add this also. What would cause my battery to say I've only been on my phone 6 hours even though its been like 9 hours?
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asjdwf said:
Guess I'll add this also. What would cause my battery to say I've only been on my phone 6 hours even though its been like 9 hours?
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Try installing Better Battery Stats off the play store to see what is causing your battery drain. The search problem I have no idea as Im not on stock..

Battery life after 4.1.2

I don't know it this is just happening to me but since recent official upgrade to 4.1.2 my battery consumption has gone way up. I went to bed last night with my phone at 100% , I wake up this morning with phone at about 60% the phone wasn't used at all and I will add it was in"power saving mode" . Any help would be great
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If you just upgraded then factory wipe might be needed.
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Did all that and more , wiped cache, dalvic wipe , reset the phone, even wiped the sd for safe messure,.
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ckavvouras said:
Did all that and more , wiped cache, dalvic wipe , reset the phone, even wiped the sd for safe messure,.
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In this case, I would highly recommend using Better Battery Stats to help find the culprit.
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aybarrap1 said:
In this case, I would highly recommend using Better Battery Stats to help find the culprit.
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Do you have a recommendation On what app to use for that?
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ckavvouras said:
Do you have a recommendation On what app to use for that?
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As the gentleman pointed out use "Better Battery stats" app.
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Better Battery Stats is an app. You can find it in the XDA forums and install it. You can also find it on the play store for a small fee which helps support the dev.
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Lol oh I thought he was saying to get a better battery stat app, doesn't realize that's was the name of the app lol mah bad
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ckavvouras said:
Lol oh I thought he was saying to get a better battery stat app, doesn't realize that's was the name of the app lol mah bad
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LOL, I thought the same thing.

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