Develop Bugs

Constant 4G and battery life

So, I'm fairly certain it's a well-established fact that the constant switching from 4G to 3G drains a lot of battery on our phones since 4G isn't a widespread service yet. I have also heard that 4G is a more efficient antenna and if you have a constant 4G connection, the battery life isn't impacted much. I was wondering how much of this is true- I live in Atlanta, which was one of the first cities to get Verizon's LTE service, and as a result, I have a sold 3-4 bar signal of 4G at all times. I go to school downtown, work in the metro area, and live in the metro area. Since I got the phone, I've just left it on CDMA, as the speeds are fine for me and I typically get 30 hours or so of battery life with data and sync on (and WiFi, when available). Would switching to 4G change that number drastically?
Thanks!
Also, a side question: I leave GPS turned on as that only polls when an application calls for it, but I've left Google's Location Services off. Is there a real need to leave that on? With GPS only, I tend to get an immediate reading with wonderful accuracy.

I'm calling bs. Please post a screenshot of your battery life of 30+ with gps and 3g all day.

rabaker07 said:
I'm calling bs. Please post a screenshot of your battery life of 30+ with gps and 3g all day.
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I'd be happy to post a screenshot the next time I run my phone down. As I said, GPS doesn't drain your battery at all unless you're using Maps constantly, so that isn't really a major factor for me. Also, I DO have the extended battery.
Also, I can't help but note how this doesn't really relate to the content of the thread at all.

rabaker07 said:
I'm calling bs. Please post a screenshot of your battery life of 30+ with gps and 3g all day.
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Not at all what the topic was about but it's easily possible. I've gotten 30 hours on 3G no problem. Right now I'm at 20% after 20 hours with moderately heavy usage. Close to 4 hours of screen on time.
As for the topic, best way to find out is to try it. Couldn't tell you for certain one way or the other.
Sent from my Galaxy Nexus using XDA App

hotleadsingerguy said:
Not at all what the topic was about but it's easily possible. I've gotten 30 hours on 3G no problem. Right now I'm at 20% after 20 hours with moderately heavy usage. Close to 4 hours of screen on time.
As for the topic, best way to find out is to try it. Couldn't tell you for certain one way or the other.
Sent from my Galaxy Nexus using XDA App
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Right, I suppose that would be the easiest approach. I just fear starting my day out on 4G and then realizing that my battery is shot when I really need it. Though, I could always just turn data off if I see my battery draining super quick.

Would this be considered good?

In your opinion, would this be considered good battery life?
2 days and 12 hours on battery with a total of almost 2 hours of screen on time.
Picture links attached.
http://img.tapatalk.com/b838cbf0-c7d0-a618.jpg
http://img.tapatalk.com/b838cbf0-c7ec-3191.jpg
http://img.tapatalk.com/b838cbf0-c7fa-2696.jpg

I think it's pretty subjective to be honest.
Are you able to get what you need to do on the phone done without having to worry about the battery?
If you mean in terms of comparison to others, then it is about average. I'd guess you're running a LTE Nexus - with the extra radio, you'll have worse battery life compared to GSM users. Some GSM users have reported 4+ hours of screen on time, which I would assume needs a few of the right tweaks here and there to achieve that. I doubt a LTE Nexus will be hitting those numbers though.

Well a phone like that and using it less than an hour a day for actual use defeats the purpose of having a smartphone.
So it's really impossible to say if it is considered 'good' battery life or not, since 99% of us use it frequently for e-mails, chat, browsing and gaming.

Krijs said:
I think it's pretty subjective to be honest.
Are you able to get what you need to do on the phone done without having to worry about the battery?
If you mean in terms of comparison to others, then it is about average. I'd guess you're running a LTE Nexus - with the extra radio, you'll have worse battery life compared to GSM users. Some GSM users have reported 4+ hours of screen on time, which I would assume needs a few of the right tweaks here and there to achieve that. I doubt a LTE Nexus will be hitting those numbers though.
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I keep LTE disabled most of the time even though LTE is plentiful in my area. I get 250 kilobytes per second on Verizon's 3G 95% of the time and that's plenty for browsing webpages or streaming music.
Another thing I should mention is that I am on GummyNexus 0.7.0 with LeanKernel 1.7.1 and I wanted to test how long I could make the phone last, with light to very moderate usage while on Wi-Fi. Brightness was at 50%.
I have made it to 3 hours and 50 minutes of screen-on time before when I had brightness at 25% with LTE disabled and connected to 3G.
I am aware that LTE drains battery, and the only reason I'd need to use it is if I wanted to download a large file. I get anywhere between 10-to-20mbps download and 8-to-10mbps upload, which is faster than my aunt's AT&T HSPA+ connection. She has trouble hitting 6mbps download and 2mbps upload.

kristovaher said:
Well a phone like that and using it less than an hour a day for actual use defeats the purpose of having a smartphone.
So it's really impossible to say if it is considered 'good' battery life or not, since 99% of us use it frequently for e-mails, chat, browsing and gaming.
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how he uses his phone is his thing.
to the OP:
did you get all the use out of it you wanted in a days time without having to charge it? if so, then you're good to go.

Have a few questions :)

I might be buying one of these bad boys. And i have a couple of questions.
1. How is the GPS on this device? Does it lock on pretty quick? Also im talking about stock, not with any tweaks or anything added.
2. How about signal? Does it get good signal? Like if T-Mobiles map says it has excelent 3g coverage will i get that inside a building?
3. Hows the camera? I heard it was the best and looking at pics taken from it it looks pretty spectacular. But nothing speaks more then users opinions
EDIT: missed one 4. Under moderate use, texting throughout the day, hows the battery life? Also hows it with heavy use?
Thanks guys for your time!

Battery sucks with any use, GPS locks on pretty quick(15 sec or so)
The camera is great, by far the best I have seen on a cell phone and just as good as our point and shoot.
I always have good signal on T-Mobile
Sent from my SGH-T989 using xda premium

beedo said:
Battery sucks with any use, GPS locks on pretty quick(15 sec or so)
The camera is great, by far the best I have seen on a cell phone and just as good as our point and shoot.
I always have good signal on T-Mobile
Sent from my SGH-T989 using xda premium
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Thanks! I figured battery life wouldnt be too good considering its using the Super Amoled + display. I was planning on buying an extended battery anyhow. About how long does it last? Like from what time do you unplug it till it reaches zero?

I personally believe the battery to be fairly standard, but definitely not horrible. I keep my display brightness at probably 75% and it lasts me ALL day and usually needs charging at around 10. Definitely manageable, and this is heavy to moderate use; ALOT of texting, maybe 30 minutes of gameplay, live wallpaper, wifi on for about half the time, AND this is on AOKP ICS ROM so battery life would be considerably better on a stock ROM or even one that allows under-clocking. Hope this helped!

Honestly I think battery on life on stock is great well at least for me....with modetate to heavy use...that including alot of Web browsing, text, calls....it last me a good solid 12 hrs. best battery life I've had on any smart phone I've owned. This phone is just amazing in every aspect the only phone I think that is better than this is the HTC one X. obviously using GPS and stuff is going to drain it more so it depends on how u use it..
Sent from my SGH-T989 using xda premium

elesbb said:
I might be buying one of these bad boys. And i have a couple of questions.
1. How is the GPS on this device? Does it lock on pretty quick? Also im talking about stock, not with any tweaks or anything added.
2. How about signal? Does it get good signal? Like if T-Mobiles map says it has excelent 3g coverage will i get that inside a building?
3. Hows the camera? I heard it was the best and looking at pics taken from it it looks pretty spectacular. But nothing speaks more then users opinions
EDIT: missed one 4. Under moderate use, texting throughout the day, hows the battery life? Also hows it with heavy use?
Thanks guys for your time!
Click to expand...
Click to collapse
The GPS on this phone has never failed me.
As far as signal. If its good near you then you will be fine. I get 4G in my apartment and do over 20 mbps dl speeds inside.
I think the Camera is better than my wifes Sensation..
I am a moderate to heavy user. I mean Texts, Calls maybe a game lots of web with usually over 2.5 hours of screen on time and on stock I was doing 13 or 14 hours..
Rooted, under clocked, and undervolted I have went over 20 hours.

PJcastaldo said:
The GPS on this phone has never failed me.
As far as signal. If its good near you then you will be fine. I get 4G in my apartment and do over 20 mbps dl speeds inside.
I think the Camera is better than my wifes Sensation..
I am a moderate to heavy user. I mean Texts, Calls maybe a game lots of web with usually over 2.5 hours of screen on time and on stock I was doing 13 or 14 hours..
Rooted, under clocked, and undervolted I have went over 20 hours.
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Click to collapse
Thats impressive! 20 hours! Woah! thanks for that i'll def consider making a profile in setCPU or tasker or even make my own apk which will under clock and undervolt when i want it
I have a second question though, what is the difference between the Samsung Galaxy S II (T-Mobile SGH-T989) and the Samsung Galaxy S II X (SGH-T989D)

3-5 Hours Screen On Time

I've seen screenshots of people getting 5 hours of screen-on time. Is anyone here getting that? If you are, please post screenshots below of your setup, and be VERY specific on what you are running, and how you are doing it. Please share the knowledge. Oh, and please don't bother posting if you're using an extended battery.

I'm running Liquid Smooth 1.4 and the (supposed) 3800 mAh Trexcell battery that I bought for $20 on Amazon.
With the standard battery the most screen-on time I ever got was 2:30 hrs. Now I get 3:30-4:00 hrs of on-screen time. Not quite double, but an improvement.
Frankly I don't know how anyone is managing 4 hours of screen-on time with the stock battery.
As an addendum: Even when I was running stock, I was getting equal-to or worse values for screen-on time.

95% of the people getting 4-5 hours of screen on time are on the GSM version. 2-3 hours is typical for Sprint and Verizon users.
Setups don't make a huge difference. What makes the difference is usage while the screen is on.

Depending on the usage, i can get 4 hours screen time on stock 1750mAh battery.
Just occasionally surfing the web using WiFi, no 3G connection, occasionally pressing the power button to check the time and 30% brightness.

I use AOKP + Franco (both latest), and always get around 3h - 3.5h. Half the time I'm using wifi, and I never use data. I don't have cell service 25% of the time, and usually have weak cell service.

Most of them are on wifi... like me I can get 5hrs of display time over wifi but only about 3hrs on my terrible 3G speeds and connection.
With the stock battery.
Sent From My Sprint Galaxy Nexus via XDA Premium

When I was running AOKP build 36 with Franco Kernel 166 I was able to get 3:55 with the stock battery. I did underclock to 1036MHz with some slight undervolting. I never use WiFi and my data is only on when my screen is on. I also played games for about an hour and a half.
Now I'm on AOKP build 38 with Franco's Milestone 4, and I usually average 2-3 hours of screen on time.

Unless the spring and verizon versions are so wildly different, I'm going to ask for screenshot proof if this. I bet you're mistaking "awake" time for screen-on time.

absoluteparanoia said:
Unless the spring and verizon versions are so wildly different, I'm going to ask for screenshot proof if this. I bet you're mistaking "awake" time for screen-on time.
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They are wildly different. They use different cellular technology.

But you just said at the top of the thread that Spring and Verizon have comparable times, now they are wildly different? They are both CDMA. In the case above its WiFi only.

absoluteparanoia said:
Unless the spring and verizon versions are so wildly different, I'm going to ask for screenshot proof if this. I bet you're mistaking "awake" time for screen-on time.
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No problem...
Sent From My Sprint Galaxy Nexus via XDA Premium

absoluteparanoia said:
But you just said at the top of the thread that Spring and Verizon have comparable times, now they are wildly different? They are both CDMA. In the case above its WiFi only.
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I thought you were talking about Sprint/Verizon and the GSM model, that is my fault.
BUT, Verizon has LTE for the majority of people, which will suck the battery dry faster than EVDO Rev A on Sprint.

joshnichols189 said:
I thought you were talking about Sprint/Verizon and the GSM model, that is my fault.
BUT, Verizon has LTE for the majority of people, which will suck the battery dry faster than EVDO Rev A on Sprint.
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I concur... usually if you have good LTE speeds and connection.. your battery life will be better same goes for 3G... i've seen people with full bars on 3G pull almost 4hours with the stock battery, yet with a 1-2 bar connection and a .50mbps speed... i can almost get 3 hours. I would assume that LTE would be less of a battery drain unless you have terrible connection to it.

ÜBER™ said:
I concur... usually if you have good LTE speeds and connection.. your battery life will be better same goes for 3G... i've seen people with full bars on 3G pull almost 4hours with the stock battery, yet with a 1-2 bar connection and a .50mbps speed... i can almost get 3 hours. I would assume that LTE would be less of a battery drain unless you have terrible connection to it.
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LTE is more of a battery drain than EVDO I believe. Unless you have full signal. All the time.

joshnichols189 said:
LTE is more of a battery drain than EVDO I believe. Unless you have full signal. All the time.
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hmm doesnt make sense, i figure the faster speeds would help... then it wouldnt have to struggle to pull something up through, lets say the web browser. I mean if you have 1bar of LTE then yeah thats gunna drain faster or similar to 3G. But 3-4 would be optimal.... i assume im terribly wrong but.. these are just my thoughts and assumptions

ÜBER™ said:
hmm doesnt make sense, i figure the faster speeds would help... then it wouldnt have to struggle to pull something up through, lets say the web browser. I mean if you have 1bar of LTE then yeah thats gunna drain faster or similar to 3G. But 3-4 would be optimal.... i assume im terribly wrong but.. these are just my thoughts and assumptions
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In terms of data transfer, sure but I believe just getting and holding onto an LTE signal, especially for a CDMA-based phone causes a lot of the problems.

HOW!!!!! What are you running, what apps you have, etc.

Like I said over all wifi. Skanwich and Samurai Kernel. I don't have anything that syncs. I dont use any "battery" apps and this is just Xda and various other games and YouTube... it just doesn't show up... for some reason. Also its undervolted but stock frequencies. Using the on demand governor.
Sent From My Sprint Galaxy Nexus via XDA Premium

joshnichols189 said:
LTE is more of a battery drain than EVDO I believe. Unless you have full signal. All the time.
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Click to collapse
I can vouch for this. When I am at home I drain battery as slow as EvDo when on LTE. But I have a better signal than most people out there.

Whatcha running?

Battery Stats after One day

So the battery life is looking not bad at all BeginnersTech on twitter tweeted these pics.

My Nexus 5 gets 1 hour of SOT extra, and the applications on the stats looks like they haven't been used for very long..
BUT, "Android System" is on top, meaning that maybe it was doing updates to google services and whatnot.

nagalun said:
My Nexus 5 gets 1 hour of SOT extra, and the applications on the stats looks like they haven't been used for very long..
BUT, "Android System" is on top, meaning that maybe it was doing updates to google services and whatnot.
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Click to collapse
Your nexus 5 can make 7h SOT? That's plain bull**** (unless you keep it on a desk).
BTW second day by BeginnersTech on twitter with the s6 edge+, damn good if you ask me.

The Zel said:
Your nexus 5 can make 7h SOT? That's plain bull**** (unless you keep it on a desk).
BTW second day by BeginnersTech on twitter with the s6 edge+, damn good if you ask me.
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Check it out man, Reading and playing music, and some other minor activities.

I see people in the Note5 forums are getting great battery life so I'm expecting and hoping for the same. I could hit 6 hours SOT on the date occasion with my regular edge. (Although that was literally down to the 1% mark.)

Very nice
It seems there is a competition between the edge+ and the note 5 in battery.. both amazed me really..

I'll just leave this here.
http://www.phonearena.com/news/Gala...how-better-performance-than-the-Note5_id72736

That's impressive...
Sent from my Nexus 9 using XDA Free mobile app

So I know it's just one day and a little bit into my second run but this completely blows away when I was getting from my Nexus 6. I was lucky to get close to 5 hours of on screen time. Very happy with this change.

Oh yeah. Attachment

Attach please find some screenshot, this is my 3rd day with device.
Sent from my SM-G928C using XDA Premium HD app

Day one, sorry to crash the party
Brightness on 100% and 4G all day (verizon)

Well with 100% brightness and data all day it is normal to get 3,5 hours.. I see that I am going to get 5,5 hours with WiFi usage and brightness set at around 60% but I am only on my first charge cycle..
Sent from my SM-G928C using Tapatalk

Using lux to maintain brightness helps a lot too. Going about 60%pointless
Sent from my SAMSUNG-SM-G890A using Tapatalk

mj0528 said:
Using lux to maintain brightness helps a lot too. Going about 60%pointless
Sent from my SAMSUNG-SM-G890A using Tapatalk
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When you are in home and it is dark there is no point putting more than 60% or 70% since I think it is too bright. I am not talking Automatic option ticked here.. anyway this screen is amazing, if somebody wants to get like 7hours OST to show around here OK be my guest but real life is around 4-5 hours I believe (mixed wifi and data usage)

i get between 7 - 9 sot with my exynos note 4 if the note 5 can top this great but i doubt it

Another day of real world usage

Are you people that get 6 plus hours of SOT on mostly wifi? I just can't see getting that on the network, even with solid strength. The post above me seems more legit.

JesseMT4G said:
Are you people that get 6 plus hours of SOT on mostly wifi? I just can't see getting that on the network, even with solid strength. The post above me seems more legit.
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I've seen a pretty decent variance between wifi and 4g. So yeah I'm about 6 hours sot on wifi and closer to 4 on 4g depending on signal strength.

I've had this phone since Wednesday and since yesterday I've gotten some nice battery life. I'm on pace for 5+ hours of sot.