[Q] Bought a Nexus 7 3 days ago. Is this normal? - Nexus 7 (2013) Q&A

So after purchasing the Nexus 7 (2013) 16gb WIFI edition I noticed a problem with the battery that is really bugging me. Im on stock non rooted 4.4.2 and the battery is HORRIBLE. Moderate use finds me having to charge the thing almost twice a day. Its especially bad when im watching a youtube video or streaming a movie on netflix (Non GPU intensive gaming also), it will go down about 1% every 3 minutes not exaggerating. I have heard stories on here of Nexus 7 owners getting like a day or two out of the battery. Is there some kind of ROM or kernel out there that is good battery life? Is my tablet just a defect?
p.s. I have my brightness medium, GPS off, and i keep my WIFI always on.

Battery isn't intended to go a day or two and haven't heard of anyone's doing that. I use elementalx kernel, slightly over clocked, get about 10 hours with moderate use. Hard to tell now because I keep mine on a wireless charger when I set it down.
Netflix does drain the battery a lot. If you watch it all day you're gonna have to charge it. Can try out any of the Roms and kernels, see what works for you.
Sent from my Nexus 7 using xda app-developers app

My nexus battery isn't that different from yours so i'd say it's not a defect from your tablet but it's our battery that isn't that good. I use sinless rom with elementalx kernel with cpu at 1.8 ghz and if i play need for speed for a couple hours and watch 1 or 2 movies drains really fast. the battery is the only thing i hate on this tablet, that and the fact that there's no sd card slot..

my nexus 7 also does not make much more, usually 7 hours screen time. it is often enough to look at a video on google play, and surf a little with wifi

datallboy said:
Battery isn't intended to go a day or two and haven't heard of anyone's doing that. I use elementalx kernel, slightly over clocked, get about 10 hours with moderate use. Hard to tell now because I keep mine on a wireless charger when I set it down.
Netflix does drain the battery a lot. If you watch it all day you're gonna have to charge it. Can try out any of the Roms and kernels, see what works for you.
Sent from my Nexus 7 using xda app-developers app
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Does the elementalx kernel work on stock? If so I might give it a try.
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Yep, works on stock and all aosp Roms.
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Standby time is where the battery lasts for days, actual usage will dictate how often you need to charge. I usually only charge every 4-6 days with about 7 hours screen time. Naturally if you use the tablet several hours worth a day you will have to charge more frequently. The battery is perfectly acceptable, better than the 2012 N7 even though it's smaller.
Sent from my Nexus 5 using xda premium

The 2013 nexus 7 has an incredibly bright screen.... when turned down, it uses very little power, but if you turn it up all the way, it will drain battery like mad. What are you keeping your screen level at? If you keep it in the middle like you say, maybe turn it down a bit. The middle is like max brightness on other devices.... so watch your brightness and you will net much better battery life... also disable any sync/ wifi/bluetooth if you arent currently using them. that will help.

I flashed back to 4.3 to get good battery life again but I did that mainly cause 4.4 and up gave me touch screen issues I didn't have with 4.3
Sent from my Nexus 7 using xda app-developers app

Follow the steps below.
1. Apps like Facebook, Instagram, Mail apps drain more battery even though if you are not using it. So configure them to sync occasionally at 3 hours or more to save your battery. You can also manually turn off sync in the Quick settings & turn On only when you need it.
2. Use apps like Greenify to limit apps like Facebook, Netflix to running on the background.
3. Set your brightness to auto. If you wanna configure your brightness more, use Lux Auto brightness app.
4. Install the following apps to monitor your battery like Battery Stats Plus, Cpu spy, Battery widget & note the values.
5.Also give a few days to analyse battery behaviour & reply if you found changes in the battery.
Nexus 7 (2013) with stock AOSP ROM(4.4.2), FRANCO Kernel (r12)

Related

Now this battery life is more like it

-Wifi and Bluetooth on whole time
- Tons of texting, a lot
- Over 1 hour of phone calls on Bluetooth
- Over 3 hours of A2DP streaming
- Periods of no signal (subway)
- Screen on for 2 hours
- Google Reader and Web browsing
- Used the phone as I would normally without thinking about battery at all.
Very very happy. UPDATED with recent screenshots before I plugged it in.
Sent from my Galaxy Nexus using xda premium
Out of interest, how many times have you charged your phone (0%-100%)?
Never drained it to zero and started using it right away without charging it. Its been charged to 100 twice already. My uptime is 73 hours and that's exactly how long I've had the phone.
Sent from my Galaxy Nexus using xda premium
Wow! I wish mine was as good as that, seems to be getting better with each charge though, which is a positive.
Most I have got is 12,
Hopefully this will increase over time
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BlackDino said:
Most I have got is 12,
Hopefully this will increase over time
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Click to collapse
me too OP: share your secret!
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Probably dim screen. Usually screen takes 60%-70% of the power.
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BlackDino said:
Most I have got is 12,
Hopefully this will increase over time
Sent from my Galaxy Nexus using Tapatalk
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Honest question, how many times are you more than 12 hours from sleeping or relaxing in your house?
12 hours is more than adequate for a normal user
This is mine after a fresh wipe and no apps installed. Just thought i`d see how it did with normal use.
Here's mine; at a point the phone got itself shut down for some reason, and I couldnt get it restarted at that moment, so I left it like that, and when I could turn it back on, it was quite warm around the camera unit, and also the battery was pretty much drained - thats what you can also see on the screenshot at the "20minutes" part of t he scale. After I've removed the battery and put it back, the phone was working for quite a while again, like 12 more hours.
I'm sure auto brightness helps as it keeps screen dim but during my use it was brighter especially outdoors. My whole point is there is no secret, you should use the phone as you would like it. One thing I could have done I'm sure to improve battery life is turn off wifi and bt when they weren't in use and possibly not have as many apps running but then what's the point in having the phone?: D
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I get around 11-13 hours. Not too impressed. My iPhone 4S gets 20 easily. I'm really conservative on my Nexus too because doing anything intensive (games, video recording, youtube etc) really rapes the battery. I'm guessing some of you turn off auto sync or something.
Sent from my Galaxy Nexus using XDA App
I'm currently on 1 day 1 hour, with 50% left. Although with light usage.
Stretlow said:
Honest question, how many times are you more than 12 hours from sleeping or relaxing in your house?
12 hours is more than adequate for a normal user
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true, just a pain in the ass to plug in.
would be nice if it lasted 18hrs so if I can wake up, stay out late, and then plug it in when I go to bed
BlackDino said:
true, just a pain in the ass to plug in.
would be nice if it lasted 18hrs so if I can wake up, stay out late, and then plug it in when I go to bed
Click to expand...
Click to collapse
I was able to do that last night but honestly not a big deal plugging it in.
It's simple really - the more you use the phone the worse battery life is but that's because you used the phone more! I never use the phone LESS just for battery life because then you're doing yourself and the phone injustice.
43% - 14h.. screen taking up 48%
from what I can see, apart from the screen, the biggest battery hog is wifi/3g
I installed Juice Defender and I am getting fantastic battery life now:
winwiz said:
from what I can see, apart from the screen, the biggest battery hog is wifi/3g
I installed Juice Defender and I am getting fantastic battery life now:
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Click to collapse
So JuiceDefender works fine for you? I just read that alot of users had problems with ICS and JD. Would be great if it worked though!
Here's mine. Since I was at work all day I only got time to play Dillo Hills for about 20 mins but I've found the battery is REALLY good after flashing the Android Revolution ROM. MoDaCo causes too much drain IMHO.
Battery life isn't too bad on mine. I got mine on the 10th and I used it right out of the box. Battery life wasn't that great until I did a charge to 100%. The OTA update didn't change much for me in regards to battery. Currently at 21h uptime and I'm at 32%.

When did your battery life start to get better?

I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Below is a screenshot of my battery life.
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It doesn't get better...get used to it until its fixed in an update , along with the other big issues.
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By about the 3rd day it seemed better. But it's also difficult to gauge because the first few days you're bound to toy with it constantly.
Until there is an empirical way to gauge usage, like an amp meter attached to the phone - it's all perception imo.
GalaxynexusVZW said:
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In the top left you have three things running in the background, im assuming constantly. Uninstall them, especially the battery percentage since you can look that up easily on your phone
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GalaxynexusVZW said:
I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Below is a screenshot of my battery life.
Sent from my Galaxy Nexus using xda premium
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Click to collapse
Do yourself a favor and try aokp milestone 1 from rootzwiki , and also download lean kernel 1.1.1 on xda. Use interactiveX governor for kernel. This is the exact setup I am using now, and have been for a few days and have been getting insane battery life. Hope everything works for you.
Sent from my Galaxy Nexus using XDA App
Last time I checked lithium ion batteries don't get better after a few days and yes there are software fixes for battery life and bugs..
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Reality. And a week. And getting a gsm version might help
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cvbcbcmv said:
You really have no idea what you're talking about. First of all, it will get better, I won't bother explaining the science behind it considering you can do your own research, but it will, also, it can't be "fixed." Just like they can't make it an 8 mega pixel camera in an OTA. You can get it much better by doing custom roms and thigns of that nature.
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Oh stupid me and here I was hoping for a 15 mp camera
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It got better when I turned off vzw backup and google +.
Best I got is 16 hours bone stock just an extended battery. Worst I got was 4 hours(screen was on the whole time) watched 2 movies before I plugged in. I average around 12 hours from 100% to 20%.
Sent from my Galaxy Nexus using Tapatalk
GalaxynexusVZW said:
I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Below is a screenshot of my battery life.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
First off, it's hard to tell by your screenshot how good or bad your battery life is. You're burning approximately 10%/hr, but maybe you had your screen on or were surfing the internet for a portion of that time. Anything that involves data transfer will kill your battery faster.
I got my Galaxy Nexus on Wednesday, and I've had great battery from the start. I calibrated it by letting the phone's initial charge die down to zero, and then charged it all the way up to 100%, and then used the Battery Calibration tool. I drain between 2-3% hour with light use, but can obviously drain much more depending on what I'm using the phone for.
That being said, for those on this board who think an OS upgrade is going to fix the problem, I highly doubt it. I have a reasonably poor cell signal (averages around -95 dbm), but still get solid battery life. Given that we were all issued phones with the same software, if you're experiencing incredibly bad battery life, I'm going to point my finger at the hardware. It just doesn't make sense that some of us with 4.0.2 get great battery life, and others do not. You probably have either a bad battery or a bad phone. Now, I'll probably get called out for saying this, but watch all the posts that follow when the update releases, when people still have poor battery life.
This is my 3rd Android phone (Incredible, Charge, GN), and every one of these phones has had poor battery life. On average, if I'm playing around with the screen on, I'm draining upwards of 10%/hr, if not more. But if you properly calibrate the battery - which is VERY important - you should easily be able to get a full day's charge out of your phone.
There is a post on XDA about the 13 steps to proper battery calibration. Once I followed it on my last phone, my battery life went up at least 50%. You have to let the battery drain to 100%, then bump charge a number of times, then use the battery calibrator.
GalaxynexusVZW said:
I have had the phone for 5 days and with fairly light usage, I am still not getting good battery life. I turn off all data and wifi when not using it and screen on time is below 2 hours.
Click to expand...
Click to collapse
Try running without JuiceDefender. Constantly toggling data on and off (or wifi on and off) actually hurts battery in almost all cases.
martonikaj said:
Try running without JuiceDefender. Constantly toggling data on and off (or wifi on and off) actually hurts battery in almost all cases.
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Click to collapse
Your results may vary, but when I used Juice Defender or Green Power on my Droid Charge, I nearly doubled the battery life. I haven't put it on my GN yet because my battery life is much better than what I had with the Charge.
No using JD or anything like that. Just the the phone do its thing. I don't even open the multitask button unless I want to switch between apps.
Sent from my Galaxy Nexus using Tapatalk
Gotta be a software issue with the battery.
Just this past weekend in Wash DC. Very strong 4 G market.
I had it fully charged off charger. After 7 hours without touching the phone even with google plus sign out, the battery went from 100% to 54%. It's like the phone was active a lot without me even touching it. No SMS/mms either. No emails either.
Know. I did same thing and put it on airplane mode with it 100% charged. After 7 hours on airplane mode it was at 98%.
So it's gotta be an operating system issue.
I tried it on wifi instead of 4G mode. And battery drainage was down to 72% after no use overnight.

[Q] Is this normal battery usage?

It feels like my phone can't last much more than a day.
Am I expecting too much juice from my phone or is this the normal amount it should be at?
Generally speaking for me I only last about 12 hours unplugged. Even when not in use on idle, i seem to lose 1% every 10-20min or so.
Someone please shed some light based on these battery screenshots and tell me if its normal or not.
Your biggest wakelock is audio out. Turn off keyboard sounds and screen touch sounds and lock sounds. Now your phone can sleep better.
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You seem to have fairly frequent screen-on usage paired with frequent intervals of GPS usage (see battery graph).
Are you using GPS that frequently? If not, id investigate on why your GPS is being utilized so frequently.
I'd say based on your usage, your battery life is fairly normal.
Two hour screen time... That sounds about normal to go from full to dead. You're lucky the phone made it 12 hours. Many people get a lot less.
EP2008 said:
Two hour screen time... That sounds about normal to go from full to dead. You're lucky the phone made it 12 hours. Many people get a lot less.
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Two hours screen on time is normal? I hope you mean for the Verizon version..
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with wifi on the whole time, that should help the battery last longer. I'm on LTE version and my battery life is similar to yours, but on 4G.
Based on your info, I would guess that you can improve it by turning off some things going on in the background. Widgets, weather, screen brightness, anything else using lots of background data or ram?
Sleeping with 4G, sync, and GPS all on I lose 1-2% per hour. But that's with no background apps other than stock OS stuff + AVG. I normally get 2.5 hrs screen time 100%-0% on 4G over a 12 hour period.
Well there's half the problem right there, facebook, it's refreshing for updates all the time.. also, underclock your phone so the max is 920MHz might save some, unless you wanna do some gaming or something it doesn't matter. Audioout seems to cause a lot of wake time for all android phones.. seen it in the epic 4g forums. But yessiree Bob.
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joshnichols189 said:
Two hours screen on time is normal? I hope you mean for the Verizon version..
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Normal for a lot of people. Just look at all the poor battery threads. I get 2:30h with my gsm GN running Wifi and very minimal apps which sync. My browser is inverted and my screen brightness is low.
I get good standby time, but that doesn't really comfort me as I have a powerful phone I can't actually USE.
You will hear people say they get great battery life or they are fine with 2h screen time, but I just think they don't want to admit that a $700 phone in 2012 should have better life than this.
If you ask for advice, people will tell you to stop complaining and / or get a new phone. Don't reply to them or an XDA mod will threaten to ban you. Happened to me.
Sent from my Galaxy Nexus using Tapatalk
EP2008 said:
Normal for a lot of people. Just look at all the poor battery threads. I get 2:30h with my gsm GN running Wifi and very minimal apps which sync. My browser is inverted and my screen brightness is low.
I get good standby time, but that doesn't really comfort me as I have a powerful phone I can't actually USE.
You will hear people say they get great battery life or they are fine with 2h screen time, but I just think they don't want to admit that a $700 phone in 2012 should have better life than this.
If you ask for advice, people will tell you to stop complaining and / or get a new phone. Don't reply to them or an XDA mod will threaten to ban you. Happened to me.
Sent from my Galaxy Nexus using Tapatalk
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2:30..? On wifi? What are you running? I can always get over 3 on wifi with the stock battery..
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I'm not sure whats going on on your phone but here is my current battery life.
Running AOKP M3
I listened to music for at least 4-5 hours this morning. I have Twitter set to update every hour or so and auto-sync on. If you have any other questions about how mine is setup, just ask.
xsnipuhx said:
I'm not sure whats going on on your phone but here is my current battery life.
Running AOKP M3
I listened to music for at least 4-5 hours this morning. I have Twitter set to update every hour or so and auto-sync on. If you have any other questions about how mine is setup, just ask.
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Click to collapse
But you hardly had the screen on.. that's what the thread is about screen on time as the screen is the biggest battery killer
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I had 2hr and 5m according the the battery usage screen right now. =/
joshnichols189 said:
2:30..? On wifi? What are you running? I can always get over 3 on wifi with the stock battery..
Sent from my Galaxy Nexus using xda premium
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Stock 4.0.1. My usage is mostly browser based and Evernote.
If you watch movies, your screen time will be higher, but I use my phone for productivity and it dies fast.
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EP2008 said:
Normal for a lot of people. Just look at all the poor battery threads. I get 2:30h with my gsm GN running Wifi and very minimal apps which sync. My browser is inverted and my screen brightness is low.
I get good standby time, but that doesn't really comfort me as I have a powerful phone I can't actually USE.
You will hear people say they get great battery life or they are fine with 2h screen time, but I just think they don't want to admit that a $700 phone in 2012 should have better life than this.
Click to expand...
Click to collapse
+1
With standard battery and stock ROM this phone can only give 2.5 - 3 hours screen time, which is unacceptable IMO in this day and age.
Turn GPS off, turn wifi off, don't use this app, only use that app, turn sounds off, don't increase the brightness, limit the cpu etc etc... So why did I buy a smartphone that I can't use then?
Sent from my Galaxy Nexus using XDA App
I have owned more android phones than I can count, and tried more ROMs and Kernels than you can imagine. Countless times I have seem claims of improved battery life, and until recently nothing made a noticeable difference short of not turning on the phone. I am running the latest GummyNex Rom with the Franco Kernel 15.2 and it is shocking. I have verified the last two nights by leaving phone off the charger. Night #1 -8 hours 30 minutes phone sat while I slept, on 4g GPS enabled, and used 8% battery. Last Night 8:15 phone sat, same conditions only 7% battery usage. I am using the "Franco Turtle" governor and notice not performance degradation and only incredible battery life. Very impressive

Why Do People Complain About Battery?

I've seen so many threads here and at The Verge that I just don't understand. I've been using Android devices now for about two years and I've NEVER had a problem with battery life being worse than my iPhones. I have a 3GS and the battery on it dies after about 8-10 hours of moderate use. Meanwhile, I'm at 12 hours on my SGS3 and 50% battery. I also have quite a lot of applications running in the background. Granted, today I have been low usage, but yesterday I was on the phone for hours and I still went 12 hours before the battery icon turned yellow. I haven't HAD to recharge before 12 hours for ages, even my Atrix went longer than that. I even have a screenshot from a few days ago where I went 14 hours and only dropped to 63%.
Are people just nuts or what is going on here?
People expect to play games at max brightness for hours and still get 12 hours battery life.
In with you, I use my phone constantly through out the day, I run my business from my phone, and routinely get 14+ hours per charge no problem. I just made a few tweaks, nothing big, and I'm good to go. This phone lasts noticeably longer than all my previous iPhones 3,3g and 4. Plus it charges twice as fast as those and never over heats... all my iPhones would get so hot that I couldn't charge them in the car with out testing then in an ac vent, and that's just from half an hour to an hour of talking... sgs3, I can talk for hours with no overheating, and it charges like a boss.
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Before I flashed Cyanogenmod on my S3, I rarely reached over 10 hours of battery use with data on.
Neither one of my galaxy phones overheated to where they shut off until one decided it was dirty and jumped in the washer(rip 1st sgs2) .
I had changed my iPhone 4 back glass to one of those metal backs. Now when its on charge it will almost burn your hand if ur holding it. And I have had it shut off while on Facebook. Battery never last very long on I phones if the brightness is up data going WiFi seeking and jbing.
sent from 1 of 4 Galaxy devices
people complain even though they jumped from a 3.5 to a 4.8 720 screen device. Faster processor etc. With hspa or LTE speeds. I mean really. lol
My battery life is great! Much better than any other phone I've owned...12 hours of use for me is nothing....I get 18+ without a problem....frequently I've gone well over 24 hours.
Chargers. That is all.
I mean don't these people go home and charge your device?
Juuuuust saying... I dunno. K. Whatever l. Bye.
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EddyVercetti said:
Before I flashed Cyanogenmod on my S3, I rarely reached over 10 hours of battery use with data on.
Click to expand...
Click to collapse
Wow...u post in every thread ....must want to get that post count up huh
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I think some phones came with defective batteries. I'm running juice defender and could easily make it through a 16 hour day. 3-4 hours of screen time was not uncommon. 3 months later, and I can barely get 10 hours of use and 1.5 hours of screen time. Time to get a new battery!
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I am not sure what is going on. I don't have the best battery life I can get 10 to 12 hours moderate use. Steaming music, reading rss feeds, checking email, 2 to 3 hours screen on. I would easily last a day on my iPhone 4. I have juice defender, lowest screen setting, custom kernel with under volting. I think it has something to do with my area. Att is so congested in my area I am barely able to use data sometimes. It's better with lte but still an issue at times.
Sent from my At&t GSIII running CM10
People use their phones differently. Just saying.
If I don't turn the screen on, with LTE data, my phone dies in 9 hours (I tested it). And this doesn't mean there's a problem with it. I have around 15 different push notification apps running in the background, all of which are using data almost continuously. I don't think I can expect it to last much longer. And if I know I'm not going to be near a power source for longer than that, I simply turn off syncing to get better battery life.
To me, it looks like the LTE radio is the biggest battery hog. Let's see if the iPhone 5 can somehow get around this problem so that other manufacturers can take note
pngface said:
People use their phones differently. Just saying.
If I don't turn the screen on, with LTE data, my phone dies in 9 hours (I tested it). And this doesn't mean there's a problem with it. I have around 15 different push notification apps running in the background, all of which are using data almost continuously. I don't think I can expect it to last much longer. And if I know I'm not going to be near a power source for longer than that, I simply turn off syncing to get better battery life.
To me, it looks like the LTE radio is the biggest battery hog. Let's see if the iPhone 5 can somehow get around this problem so that other manufacturers can take note
Click to expand...
Click to collapse
I was going to mention this. I noticed a significant improvement in battery life once I used JuiceDefender to turn off data while my screen is off. 4G LTE is the main culprit of most of the complaints for battery life (in addition to brightness). That is going to be a big problem for the new iphone if they can't get the battery management for 4G correct. It has taken Samsung a couple of years to get the battery working decent with 4G. I have my doubts that Apple could top them the first year running LTE on the iphone. Who knows, maybe that will be the "new" feature they have been working on over the year, LTE power management. That's the direction Motorola has headed in their new RAZOR MAXX devices. We'll see, either way, the consumer comes out on top as we have more competition to drive down prices and receive better products each year.
Best battery life for SGS3
With AMOLED and Android u gotta take special measures to get good battery life:
- kill bloatware. NostalgiaTurboSlim script will help. Or freeze unneeded apps - like Maps and enable them only when needed.
- disable various notifications - Play Market, WiFi etc
- disable ads - root and download AdAway app - they steal your mobile traffic, battery life and make you blind!
- put dark nonLive Wallpaper
- remove any widgets you don't use. I just removed all of them.
- disable animations and transitions
- disable haptic feedback
- disable touch tones/sounds/vibrations
- try using nonAuto brightness (I gave up on that - sunlight does not allow me to change anything manually)
- disable autorotation
- use dark Opera browser user.css
- use inverted or dark themed apps and Gapps, there is dark MMS, Twitter and Facebook in my ROM
- downclock CPU to 1GHz, or enable PowerSave On.
- use modern KToonsez kernel with PegasusQ governor, it downclocks CPU during screen off
- use CPU1 disabler script if your ROM/kernel supports it
- keep chargers around you, buy them at amazon
- buy spare OEM battery - I'm against aftermarket batteries, they are all fake rated
Or just buy latest iPhone 5 and enjoy.
Remember: Android is for tinkerers! That's why we love it! :victory:
Why do people still use some sort of battery management app life JuiceDefender or the like.
GET RID OF THEM NOW !(most of you that use it are probably coming over from an Iphone so you may be new but aren't well educated in how the Android OS works)
This phone comes with its own Task Manager as well as removing unwanted apps that are running in the background that you have previously used and don't need running.
So get rid of these dumb apps that don't do anything.
-End rant.
i had great battery life, then a few weeks. ago a process called gsiff daemon startimg eating my battery.
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I have AMAZING battery life.
I have two........
; )
I bought a 3150 man battery on eBay for 10$. With data on WiFi on . My battery took 30h to be completely drain. 5-6h of the 30h was heavy use ( game, download, watching video)
I'm on cm10 with kt747 kernel OC to 2106mhz UC to 96mhz
Ktoonservative governor
Noop scheduler
All my frequencies are under volt of at least 100mv each
Try this!
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loki2828 said:
i had great battery life, then a few weeks. ago a process called gsiff daemon startimg eating my battery.
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Click to expand...
Click to collapse
I believe this is the software bug that can be fixed in one of the threads around here. It deals with the Cell Standby that drains the battery.
Correct me if I'm wrong.
liltitiz said:
I bought a 3150 man battery on eBay for 10$. With data on WiFi on . My battery took 30h to be completely drain. 5-6h of the 30h was heavy use ( game, download, watching video)
I'm on cm10 with kt747 kernel OC to 2106mhz UC to 96mhz
Ktoonservative governor
Noop scheduler
All my frequencies are under volt of at least 100mv each
Try this!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Click to collapse
My under volt setting. I just dropped all of my steps by -55 MV and it looks stable
MHz/stock mv/my mv/-mv amount
96/925/785/-140
144/925/790/-135
192/925/800/-125
384/925/825/-100
486/925/845/-80
540/950/865/-85
594/950/875/-75
648/975/890/-85
702/975/895/-80
756/1025/950/-75
810/1025/955/-70
864/1050/970/-80
918/1050/980/-70
972/1075/985/-90
1026/1075/990/-85
1080/1125/1015/-110
1134/1125/1025/-100
1188/1150/1040/-110
1242/1150/1055/-95
1296/1175/1065/-110
1350/1175/1080/-95
1404/1185/1095/-90
1458/1185/1110/-75
1512/1200/1120/-80
1674/1200/1125/-75
1728/1250/1145/-105
1809/1275/1185/-90
1890/1300/1215/-85
1998/1325/1240/-85
2106-1350-1300
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shugga101 said:
I believe this is the software bug that can be fixed in one of the threads around here. It deals with the Cell Standby that drains the battery.
Correct me if I'm wrong.
Click to expand...
Click to collapse
I was not planning to root this phone. but I rooted kt. renamed the file, and it seems to be fixed wih no problem that i can see
Sent from my SAMSUNG-SGH-I747 using xda premium

This is it !!

I am extremely frustrated. My phone has always been bad with battery life. Its been over a year or so that I have not seen my phone last longer than 5-6 hours. I am constantly looking for any chance I get to charge my phone. My life revolves around checking battery %age and plugs to charge. Smart phones were suppose to be helping us, but its like they are using me to feed the juice every chance they get.
My T989 is a "SMART" phone with
- lowest on screen brightness (and a screen dimmer overlay)
- no NFC
- no haptic feedback or keytone sounds
- No animations or graphic heavy launchers
- dont play games any more
- turn off 4G/data anytime I get a chance
- No GPS
- Manual Sync emails, facebook and whatsapp
HELL, I want to go back to the age of Nokia's where the batteries would last you through weekend and still some juice left even after it goes through laundry.
But that is not what I am here to complaint about.
I would like to know what ROM+Kernel you have and how much battery life you get ? (w/ screen time)
Who else is going through these ?
Note: Currently on JB stock and a new OEM replacement battery
How often are you using your phone? It uses a lot more battery when the screen is on. You can get over 24 hours of battery life by not touching your phone at all/no apps running.
I think most people average around 3 hours of display time without charging. Check in settings/battery/display.
I'm running AOKP and depending on how often I use my phone it can really deplete my battery.
Sent from my SGH-T989 using xda app-developers app
Get a new battery maybe? I'm sorry for your issues.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
I've been running CM 10 for awhile, and I've been getting great battery life. Recently It's been sliding, and it's due to my battery just being old. I've got a new one I'll be putting in tonight. Get Gsam Battery monitor and check out what's using the battery.
easiest way i have found to extend my battery during the day is to toggle my data..if i am not using it for a bit, just toggle it off, takes 2 sec to toggle it on, and can easily double my battery life..
I use Jedi mind trick with Tiberius kernel. It fly's and I get around 12-14hrs with 1hr and 30mins or so with Facebook 1hour and half of music and texting. So get it!
Sent from my T989 doing Jedi Mind Tricks
Do this stuff and read it carefully. And yes 3 to 4 hours is about average screen time. Makes no difference discussing total battery time. You can kill it 3 hours from a full charge with continuous use...or it can last 24 hours....all depends how often your using it and what you are doing with it.
If you go thru this other thread and follow all of the advice ....you should be fine.
http://forum.xda-developers.com/showthread.php?t=2461864
Sent from my SGH-T989 using xda app-developers app
Try this :thumbup:
http://www.amazon.com/gp/aw/d/B0083M5CIM/ref=mp_s_a_2?pi=SL75&qid=1348506195&sr=8-2
Sent from my SGH-T989 using Tapatalk 2
Areyoucrazy, 5-6 hours of on screen time or total? If that's all you get even with screen off, something is probably keeping your phone awake. Get an app called better battery stats or gsam battery monitor to figure out what is keeping it awake.
Sent from my SGH-I747M using xda app-developers app
These are my results, after buying the LAZA 3800mAh battery. I just had it for one day and it is light years ahead of the stock battery. I don't use NFC, and my brightness is all the way down. (Still I don't believe the brightness is low enough, seems too bright). I am a student so when I'm in class I can't obviously use my phone, so that is why the screen time is below what you guys expect. Still this battery is legit! I got it for $23 shipped (Amazon Prime). On the stock battery I had to revert back to ICS, but with this Laza battery I have no gripes on leaving it on the latest CM10.2 (4.3.1) and letting it go on Dual Carriage (DC, HSPA+42) mode. As long as I leave school with more than 70 percent battery like on my HTC Sensation, I am fine.
Sent from hopefully my last brain transplant using Tapatalk 4
I'm curious to see what screen time you get on a full charge.
Sent from my SGH-T989 using Tapatalk
DJ Scooby Doo said:
These are my results, after buying the LAZA 3800mAh battery. I just had it for one day and it is light years ahead of the stock battery. I don't use NFC, and my brightness is all the way down. (Still I don't believe the brightness is low enough, seems too bright). I am a student so when I'm in class I can't obviously use my phone, so that is why the screen time is below what you guys expect. Still this battery is legit! I got it for $23 shipped (Amazon Prime). On the stock battery I had to revert back to ICS, but with this Laza battery I have no gripes on leaving it on the latest CM10.2 (4.3.1) and letting it go on Dual Carriage (DC, HSPA+42) mode. As long as I leave school with more than 70 percent battery like on my HTC Sensation, I am fine.
Sent from hopefully my last brain transplant using Tapatalk 4
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Click to collapse
I get the same on stock battery
Sent from my T989 doing Jedi Mind Tricks
13~BigBear~13 said:
I get the same on stock battery
Sent from my T989 doing Jedi Mind Tricks
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Click to collapse
On Jedi or on CM10.2? I don't know if Stock lets you use Dual Carriage or not. (Probably does, doesn't show it).
gc84245 said:
Areyoucrazy, 5-6 hours of on screen time or total? If that's all you get even with screen off, something is probably keeping your phone awake. Get an app called better battery stats or gsam battery monitor to figure out what is keeping it awake.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
It is the total battery hours. My screan time is barely 1 hour.
coltonbauman said:
I've been running CM 10 for awhile, and I've been getting great battery life. Recently It's been sliding, and it's due to my battery just being old. I've got a new one I'll be putting in tonight. Get Gsam Battery monitor and check out what's using the battery.
Click to expand...
Click to collapse
I do have GSAM battery monitor installed. I had it installed since it was called "bad ass battery monitor". It always is consistent and shows that screen uses most battery (abt 35% of overall usage), even at lowest setting. I also have a screen Filter app https://play.google.com/store/apps/details?id=com.haxor That overlays on the screen that dims it even further and is believed to save some more battery.
The other major user is the apps which is
- Android &
- Kernel
kj2112 said:
Do this stuff and read it carefully. And yes 3 to 4 hours is about average screen time. Makes no difference discussing total battery time. You can kill it 3 hours from a full charge with continuous use...or it can last 24 hours....all depends how often your using it and what you are doing with it.
If you go thru this other thread and follow all of the advice ....you should be fine.
http://forum.xda-developers.com/showthread.php?t=2461864
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
I will try the cpu spy again. I remember doing it before and it was almost inconclusive if there were things I could control vs system related drain that I couldnt control.
I am currently on a new OEM battery (2 months old) and several ROMs later,. Some ppl claim they get best battery life, I just want to mirror exact same ROM, kernel... even the apps they have and their refresh settings if I need to.
DJ Scooby Doo said:
On Jedi or on CM10.2? I don't know if Stock lets you use Dual Carriage or not. (Probably does, doesn't show it).
Click to expand...
Click to collapse
Jedi
Sent from my T989 doing Jedi Mind Tricks
Dude.....less than an hour screen time tells something is very wrong.
First...I would bet the screen dimmer app Burns more battery than it saves.....that'd be my guess.
Second....flash a fresh rom, or stock. Run it at least a few days as is. With only gsam and cpuspy installed. Nothing else. I know you may really miss some apps....but its the only way to see if its an app, or rom, or hardware.
Then off gps after your install. Its on by default and is a huge battery sucker.
I'll bet things will be greatly improved. Then install apps.....monitor closely for changes in gsam or cpuspy.
Your screen battery usage should be more like 60 percent or higher....even as dim as it goes. That's normal. Apps, maybe 30 percent and then the other stuff. A 35 percent battery drain from the screen says you have problems.
After all your apps are installed.....try everything in that link I posted. Everything. And things should stay good.
Keep us posted.
Sent from my SGH-T989 using Tapatalk
wow, and i thought mine was bad... i have my screen on alot and play 3d games, i guess im doing good. running slimbean.
I do believe that the battery life on this phone is not the greatest, a spare 5$ ebay battery in the wallet keeps me worry free
Sent from my SGH-T989 using xda app-developers app

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