Dk28, performance 4g battery life - Epic 4G General

I left my phone on performance in set cpu wth 4g on overnight by accident and my phone survived! Battery is definitely improved
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battery getting hot

its been doing it for the past 2 months or so just didnt kno if it was normal.. cuz I never really realized it with my last 3 vibrants.. but I might not of been paying attention tho... But my phone is getting up to 121° while on the charger just sitting there
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What rom are you using?
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Axura
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I'm on stock JI6 and I've been noticing my battery getting hot as well.
Gonna try using my spare (and never used before other new) battery and see if that remedies anything.
I'm on stock JI6 also. Never had a problem with hot battery until...
I played Quake 3 Arena for about 30 minutes. Afterwards I noticed my battery was hot and battery life was terrible (from full charge to about 30%) sitting idle overnight. This happened for about 3 days.
I used Astro Explorer and closed Q3A process, no change. Rebooted phone and no more hot battery and normal battery life, all is well again. Strange. I guess some processes are 'hidden' and can't be closed without reboot.
I was getting a hot battery while running TW Core kernel. I flashed JAC XMOD 1.1 kernel and my battery has stayed cool.
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I'm switching to the nexus s in a few days

Is the battery life good?
How is the 3g? Does it go in and out or stay connected
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dco717 said:
Is the battery life good?
How is the 3g? Does it go in and out or stay connected
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Both depend on you usage habits and region.
I can go a day on a single charge and have no data issues
Sent from my Nexus S
with:
netarchys kernel
voodoo colors adjustments
running at 1.0ghz
automatic brightness
GPS on
syncing on
average usage of maybe 2-3 hours of browsing and data i get roughly 60-68% at the end of the day at 11pm.
never have any data issues of it dropping.

Rock mod vs 99 vs bcblend

All about the battery life has anyone tested these three kernels in detail.
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Because of the slight variance in hardware on the Shift its very much a YMMV situation. For example, everyone raved about bcnice's kernel how it gave huge gains battery life, but for me it gave me the worst battery life. Before Nightly #88 ScaryGhoul's kernel gave me the best battery life.
I'm using newest miui
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i like Rock mod did very well with battrey

Someone help me! (BatLife woes)

Alright I wasn't going to make a thread on this because this topic is already discussed elsewhere naturally but I feel my situation is different. All over the place I see people reporting great battery life with ICS.. well mine is HORRIBLE. I just flashed the latest nightly for Pete's bugless. I didn't change the kernel. Everything is stock. Only a few apps installed. Noop for scheduler and ondemand for governer.
The phones been off the charger for 55 minutes and I'm sitting at 76%. Idk what's going on. I've tried so many rom/kernel combos and I seem to get the same exact battery life no matter what. Around 6-9 hours with less than 1 hour of screen on time.
Things I've tried to combat this:
Undervolting
Freezing apps
Restricting background data
Underclocking
Brightness set to auto
And I'm sure a few other things I'm forgetting about. I've done all this and still get ****ty battery life. I've flashed the new radio hoping that it would solve my issues but no dice. My signal strength reports at -67 dbm yet the bars never go over 2. 3g or 4g. Even after updating plr.
On gingerbread cm7 I ran brightness at 70%, ocd to 1.4ghz and always got 15+ hours.
For the love of god someone help me. Cuz I think my phone hates the cream sammiches.
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try this kernel, trinity teuv underclocked/undervolted kernel, oc'd gpu http://goo.gl/rY6ga
and do not set brightness to auto, its a battery killer. i keep my brightness at about 20-25%.
also, be sure to fully discharge your battery then charge it completely, after 2 or 3 cycles you should be good.
simms22 said:
try this kernel, trinity teuv underclocked/undervolted kernel, oc'd gpu http://goo.gl/rY6ga
and do not set brightness to auto, its a battery killer. i keep my brightness at about 20-25%.
also, be sure to fully discharge your battery then charge it completely, after 2 or 3 cycles you should be good.
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I do this every day lol I let the battery drain to around 15-30% before I plug it back in.
Screenie: 1 hour later and I lost another 25% this can't be rom or kernel related. As I have tried trinity already and the same thing happens
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Ugh. Another 20% gone. Its only been a half hour from the above screenie. You guys see my dilemma? Lol **** me.
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21% ..
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i was having horrible battery drain after flashing a new rom & kernel - i finally figured it out that my APN settings were messed up and I re-entered them according to the correct carrier settings.
i don't know if that will apply to you since it looks like your 4G data is working properly, but since I was on wifi 99% of the time, as soon as I went off, my data didn't work. but it's something to look at.
4 hours later I'm down to 4% from a full charge.
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Could you try better battery stats to see if something is holding a wakelock?
Turn Data usage off :/ i think Fb or some app is using your 4g
irizwan said:
Turn Data usage off :/ i think Fb or some app is using your 4g
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I would be interested to see what your battle life diff is without 4g switched on. Also in that 4 hrs what was ur screen on time?
Have you thought of trying a new batt? Just got an OEM Samsung for 5 bucks on eBay. Worth a shot.
Oh remove fb app it blows...install friend caster way better less batt make sure you change the sync interval.
You could also try green power from the market to manage your data use while screen is off.
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Ok here's how my battery performs back in cm7 nightly 174 gingerbread. Almost 4 hours and only 25% chipped away. If you look above you'll notice I lost more than 40% in the same time with ics. And I'm doing nothing different. I'm even overclocked to 1.3ghz ondemand with noop for a scheduler.
I think I'm sticking to gbread until official source is out. Maybe then ill get the same battery life.
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That is really weird, if you have time try Milestone 3 and SG's latest kernel and just leave the settings stock . I get wonderful battery life with it hopefully you do to
Oh and are there any apps you are using on ICS that you aren't on CM7?
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Nope. Lately its only been a handful. I actually have more apps installed on gbread to achieve some of the features that are baked into ics. I just don't get it. Ics hates my phone. I even used the GPS today. So weird.
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Try what I suggested unless you did already then ignore lol
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Could it be a faulty battery?
Harbb said:
Could you try better battery stats to see if something is holding a wakelock?
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This. If you are installing the same ol battery-draining POS app then you are not going to fix it with any rom or kernel.
So you guys think my batter watcher widget is preventing my phone from sleeping properly? Ok.. I'm on cm7 right now. Battery is def back to normal. And this is with bacround data on. Ill delete bw and get better battery stats.
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Better battery stats is not the same thing as other (mostly useless) monitoring apps.
Look. 16 hours on gb. If none of my apps are killing the battery then what could it be?
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stock unrooted extreme battery drain

my battery drains pretty quickly even on airplane mode. Can someone give me some suggestions? It has been 15 minutes and my battery is down to 88%...
Stock battery life isn't all that wonderful on the OG EVO. Having said that, there are plenty of ROM's available that offer better battery life over stock. I'd also look at the battery itself-might be time for a new one.
Sent using my HTC EVO LTE and a magic wand
+1..I agree with FinZ28..removing bloat and improved battery life are two of the major reasons to Root and Rom your evo. If you are using it like a media player or gaming device you just need to stay by a plug though. Not even the most efficient rom can compensate for the screen being on 24/7.
?
No need to get complicated: ignore the top 10 % of the "100%" battery charging range - when you remove your phone from the charger you get a difficult-to-predict amount of charge between 90 and 100. Sounds like you got the bottom end of that range. Then it dropped 2% more while you played with it.
This is not extreme battery drain.
Below 90, the charge meter is relatively accurate. Tell us how long it took to get from 60 to 48, not "100" to 88.
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Stock unrooted evo battery life sucks mine barely lasted 5 hours doing nothing but texting
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NxNW said:
?
No need to get complicated: ignore the top 10 % of the "100%" battery charging range - when you remove your phone from the charger you get a difficult-to-predict amount of charge between 90 and 100. Sounds like you got the bottom end of that range. Then it dropped 2% more while you played with it.
This is not extreme battery drain.
Below 90, the charge meter is relatively accurate. Tell us how long it took to get from 60 to 48, not "100" to 88.
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HERE is a good explanation of why your Battery drops quickly in the first 10% .
I installed juice defender and while idle screen off it gets great battery life. This is going to be a band-aid until I get the time to root the thing and I was using an extended battery
buzz86us said:
I installed juice defender and while idle screen off it gets great battery life. This is going to be a band-aid until I get the time to root the thing and I was using an extended battery
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Juice defender ultimate is amazing.
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buzz86us said:
I installed juice defender and while idle screen off it gets great battery life. This is going to be a band-aid until I get the time to root the thing and I was using an extended battery
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You need a sbc kernal, extended batteries on stock kernal only charge technically to 75% and also depends on type of extended battery, I bought one off ebay that was 3500 mah, it gave me worse battery than my stock 1500... now I have a sprint 2600 I got for 15$ and I get 2 days of moderate use, so all depends also I have an sbc kernal
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---------- Post added at 11:41 PM ---------- Previous post was at 11:40 PM ----------
polar2792 said:
Juice defender ultimate is amazing.
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+1
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