I get AMAZING battery life when I'm on wifi but terrible battery when I'm not. I send/receive about 300 texts a day easily and so I have the screen on frequently. I also use web a lot. On wifi my battery will last about 20-24 hours probably. Currently I'm at 67% on 6 hours. Without wifi, I will get about 8-10 hours with the same kind of usage.
I just want to know why there is such a large discrepancy. Im in NYC so my signal is pretty strong.
I used to think it was the screen that used up so much of my battery life but now I'm thinking it's the radio.
I'm on Juggernaut. If anyone has a suggestion I'm all for it. Should I try a different kernel? If so, which one?
Sent from my SGH-T989 using XDA
Jugs with dark x kernel works very well with me i use faux clock to clock it at 1.7 and 384 gettin 16-17 hours of battery life with lots if texting and browsing hope it works
Sent from my SGH-T989 using xda premium
So when you use your phone, do you not expect the battery life to go down? It can't stay at 100% after everything your doing..
I recommend Juice Defender. It turns off data when your screen is off. Sounds like you're getting a lot of screen off drain.
cashyftw said:
So when you use your phone, do you not expect the battery life to go down? It can't stay at 100% after everything your doing..
Click to expand...
Click to collapse
I do expect it to go down. Hence I thought it was normal until I noticed a huge difference in battery between being on 4g v. wifi and getting double the battery life while doing the same things.
I'm just wondering why the 4g takes that much more than my wifi and if a kernel would be an issue
Sent from my SGH-T989 using XDA
disturkis4u said:
I do expect it to go down. Hence I thought it was normal until I noticed a huge difference in battery between being on 4g v. wifi and getting double the battery life while doing the same things.
I'm just wondering why the 4g takes that much more than my wifi and if a kernel would be an issue
Sent from my SGH-T989 using XDA
Click to expand...
Click to collapse
The simplest explanation that I can come up with is twofold.
First 4G requires a MIMO type of connection, even on T-Mobile. So for the really high speed connection it actually uses more than 1 antenna and powering more than one antenna takes up more power.
The second part is that 4G connections are not as prevalent as 3G connections so your phone has to search for the closest 4G network more often to maintain the fastest connection and the network searching takes up even more data then than the MIMO style connection the phone uses for 4G.
The combination of these two will drain your battery much faster than a single antenna connection to your home wi-fi that does not have to pass as many syn/ack packets to maintain the connection as the 4G network and thus uses less energy.
(MIMO stands for multiple in, multiple out which means it uses more than one antenna for incoming and outgoing transmissions)
(Wirless-N is MIMO based as well but does need to use as many "discovery or syn/ack packets" to maintain the connection)
I second juice defender. You can configure it to turn off data while the screen is off which will not effect your ability to receive phone calls or text messages.
Sent from my SGH-T989 using XDA
Related
This is a small easy fix that I use whenever I am trying to conserve my battery on the go. It is very simple I just disable my mobile network/ 3G Data under wireless settings. Using 3G/4G data consumes alot of the battery for some reason I've noticed more drain on 3G. This helps me alot with saving my battery for a day on heavy usage and I can still receive calls and text msgs. Then just use wifi when you browse or simply turn your Data back on. Hope it helps
You'd be better off with an app like "easy battery saver" which turns off your mobile data when your screen is off but still allows you to use the device when you need to without constantly toggling.
Sent from my SPH-D710 using Tapatalk
I use juice defender. Best one available as there is more customization options
Sent from my iPhone killer.
Why would i neuter my phone?
Sent from my SPH-D710 using Tapatalk
i use juice defender ultimate and setcpu to undervolt and set the cpu to 1ghz max. I havent noticed a single hitch, so its worth it for me. Also using Blazer 4.1. i never actually run my battery down since I charge overnight for the next day, but if I were to i could easily get 35+ hours on medium use.
I do that whenever I am in an area with poor signal or roaming. A Sprint phone will eat up battery hunting for 3g signal
Sent from my SPH-D710 using XDA
That's for sure. I get pretty bad battery life..
Sent from my iPhone killer.
whats your screen time? that makes the biggest difference. I went 35 hours and only went down to 51% once, but that was only with about an hour of screen time.
Best jump in battery life I've had it's flashing a modem from the ICS leaks.
Sent from my SPH-D710 using Xparent Cyan Tapatalk
clip3009 said:
This is a small easy fix that I use whenever I am trying to conserve my battery on the go. It is very simple I just disable my mobile network/ 3G Data under wireless settings. Using 3G/4G data consumes alot of the battery for some reason I've noticed more drain on 3G. This helps me alot with saving my battery for a day on heavy usage and I can still receive calls and text msgs. Then just use wifi when you browse or simply turn your Data back on. Hope it helps
Click to expand...
Click to collapse
This feature is integrated into AOKP
Transmission sent from a Galaxy S II, AOKP style.
mattykinsx said:
You'd be better off with an app like "easy battery saver" which turns off your mobile data when your screen is off but still allows you to use the device when you need to without constantly toggling.
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
I think turning mobile data off at all would be for only extreme cases where I was going to be away from a charger for a crazy amount of time. For me, the use of widgets (google reader, apw facebook and twitter) allow me to turn on my phone, flip to a few home screens, and turn it back off. Screen time for me is always incredibly low, which keeps my battery life high.
I do this when I'm running low on battery with no charging option
Sent from my SPH-D710 using Tapatalk
Juice Defender set on defaults gives me from 1.60 to 2.07 times normal battery life. I use the default Balanced settings and forget about it.
Works great!!
They were sayn that wifi saves batt up to 50%. Ive always been told the exact oppisite. Wifi kills batt life. Wtf
Sent from my SPH-D710 using xda premium
harley1rocker said:
They were sayn that wifi saves batt up to 50%. Ive always been told the exact oppisite. Wifi kills batt life. Wtf
Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
Depends on distance/strength of wifi signal...
It's a good way for them convince you to not use your data connection for a while and slow down the network.
Sent from my Super Galaxy'd SPH-D710
I got an email/text or statement insert saying the exact same thing. Funny thing is ever since that statement I have always made sure to have wifi on when home.
I know it sorta turns off when disconnected but then it scans and picks up wifi networks so I just turn it off when I leave the house.
On my OG Evo I did not notice any change in battery life with wifi on.
Searching for WiFi is what really kills the battery which is why I turn mine off and on manually rather than leaving it on. If I'm in an area with WiFi available and my 3G signal is low, then I'll turn on my WiFi, also when I'm at work or home my WiFi is always on but if I'm out and about then I keep WiFi off rather than have it drain my battery constantly looking for signal.
Technically, I think Wifi takes up less battery than, say 3G when actively used.
Just a guess o-0
MochaCharok said:
Technically, I think Wifi takes up less battery than, say 3G when actively used.
Just a guess o-0
Click to expand...
Click to collapse
I would think this is true, especially if you're sitting close to the router like at home or work rather than pinging off a cell tower however far away.
It goes both way guys. When idle, wifi consumes more battery than an active cellular data connection.
By virtue of simply being more efficient, wifi consumes "less" when actively using it. This is, however, because of the generally increased data speeds: it takes less time to accomplish a task (I.e. downloading a file), thus providing battery savings. In this regards, even 4g consumes less battery, even though it technically takes more juice to run 4g.
The way to really look at it so it becomes clear is say, hypothetically, you had a wifi connection whose internet side connection was very slow. In this regards, wifi doesn't save you any battery, and will probably end up consuming more, simply because its gain in efficiency is now gone.
Of course sprint wants us to get off cell data as much as possible, but in a lot of real world situations, it will save someone battery. Take my typical work day for example:
I wake up at home, drive to work, stay at work all day, then go home and probably stay there. I have good wifi connections both at home and work. Now, if I was the kind of user that didn't auto sync anything, I would probably end up using more battery life than I need to if I left wifi on all day, simply because I'm pumping juice into a radio that isn't being used.
However, I DO use a lot of auto sync functions, which means that my phone is actively using data a lot throughout the day. In this case, the battery drain due to the time in which wifi is left idle is out-weighed by the gain in battery life I get by the times my wifi is now being used instead a cell connection.
In a nutshell, as I said at the beginning, cellular data connection is more efficient at being idle than wifi (provided it's a good connection), and wifi is more efficient at being actively used (again, provided it's a good connection and the internet-side speed is sufficient).
Sent from my SPH-D710 using xda premium
My battery last far longer on wifi than 4g, not even close in my book.
Since I have wi-fi at work and home I can say there is a HUGE difference - especially since at home and work the 3G/4G signals are so weak that the phone burns quite a bit of battery just searching for a signal. Hoping that this will change as NV completes in the area but it might be the frequency that we're on is not too friendly with the newer building materials.
Yes, using wifi will save you more battery life than using your 3g/4g
Pastie13 said:
My battery last far longer on wifi than 4g, not even close in my book.
Click to expand...
Click to collapse
4g is a completely different animal than 3g when it comes to battery drain. So far when on 4g your battery life is sucked out of your phone. The email Sprint sends out I would safely say is comparing 3g to wifi.
That same tip is on Sprints website when you log into your account. It is on the right hand side.
As for battery life my findings have been WIFI uses less juice when the signal is good. 3G uses less juice when the throughput is good. So when I am on 3G in an area that has good speeds I can hit near 30 hours of battery.
I can do the same on WIFI when the WIFI signal is good, but if the WIFI signal is on the lower end the throughput slows since the quality has been lowered.
So in essence the better the throughput the better the battery, because when the phone wakes to check on any sync items setup the longer it takes to make that check the longer the CPU is at max and the more battery drain occurs. And I'm not talking signal strength for 3G since you'll get more drain on the battery in lesser areas because the phone is naturally going to have to boost the transmitter power. I'm talking best signal and crappy 3G network throughput. That is where the drain comes from.
I have tested this in my house with my WIFI and my Airave. On WIFI if I go outside my WIFI range is really bad and my battery drains a lot quicker. If I turn off the WIFI and use the Airave, which has a much higher transmitter power, I can get great battery. I have also seen this in over night testing. My WIFI is in the living room which is 5 walls away and the signal is pretty poor. If I leave my WIFI on over night and not charge my phone I loose 50% battery and when trying to use my phone for internet I get super bad throughput since I am on the edge of the signal. But turn off my WIFI and ride on the Airave I only loose 15% over night and the internet is great, but limited to 1.5m since it is 3G. So if you download a 1meg attachment. 3G takes 2 min and WIFI take 4 min then 3G will use less battery. This also goes vis versa. Whoever is maxing the CPU the longest is your battery killer because both are always on and always ready when they are selected.
Hope I didn't go into to much detail, but transmit power is not the big thing here it is throughput quality of the signal. The worst the throughput the more time it takes to transmit and thus more battery as the CPU is maxed till the job is complete.
Alright I have grown beyond angry at how crapy my battery life is...... I go into school with 100 percent battery and everything off except texting and calling (which I send like 5 texts all day) and I come out with less than 70 percent. I have low signal in the building though, and my phone is set to the lowest speed on power save and I hardly ever turn the screen on. I would like for you guys to share your battery life's here with screen shots if you have them and your whole setup. Thanks beforehand!
Sent from my Galaxy Nexus using Tapatalk 2
You know.., there are some threads made showing/asking battery life. Here's one
http://forum.xda-developers.com/showthread.php?t=1834634
Sent from my Galaxy Nexus using xda premium
Well seems like your phone does not deep-sleep very well? 30% drain doing hardly anything seems much even if the reception is low. I have excellent idle-drain on my Nexus as seen in my attachment.
What does your battery stats show you after a day at school?
dakota.breeden said:
Alright I have grown beyond angry at how crapy my battery life is...... I go into school with 100 percent battery and everything off except texting and calling (which I send like 5 texts all day) and I come out with less than 70 percent. I have low signal in the building though, and my phone is set to the lowest speed on power save and I hardly ever turn the screen on. I would like for you guys to share your battery life's here with screen shots if you have them and your whole setup. Thanks beforehand!
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
How long is school? What ROM/Kernel, if any, are you running? Is this the stock battery?
I am losing about 1-2%/hour while I sleep but I feel I get acceptable battery life. I am running Affinity with default Franco r249 kernel. I also have an 2100 mAh battery. Using WiFi almost the whole time this is my most battery life. I would recommend an extended battery and connecting to the school's WiFi if it's available.
Allons-y
For me turning off data helps lots
-----------
iphones are the creation of people with nowhere left to turn
I bet you have weak signal when in school building. What helped me is turning off 3g
Swyped on my Galaxy Nexus running AOKP with Trinity Kernel, overclocked to 1.4GHz
I HAVE ONE SUGGESTION THAT MY HELP. GO 2 GOOGLE PLAY N DOWNLOAD THE APP JUICE DEFENDER THERE'S A FREE N PAID ITS UR DECISION READ N CHOOSE WHAT'S BUT 4 U . GOOD LUCK!!!!!
Sent from my VS920 4G using xda app-developers app
There is nothing on except calling and texting while I'm in school which is 7 hours long I am running cm10 with its kernel at the moment.
dakota.breeden said:
There is nothing on except calling and texting while I'm in school which is 7 hours long I am running cm10 with its kernel at the moment.
Click to expand...
Click to collapse
What does your phone say is using your battery? Try clean flashing the ROM, or maybe a different ROM, and see if that helps. How often are apps set to pull data? Look at your battery stats after school and see where it's leaking from.
Allons-y
Do you leave your GPS on? Turn of data if you know your not going to be using it for a while.
Sent from my Galaxy Nexus using xda app-developers app
There is nothing on (gps-data-etc.) i have only calling and texting enabled.
If you have a weak signal inside the building, and mobile network enabled for receiving calls, your phone will expend a lot of battery just trying to constantly find and reconnect to the mobile network. May even get warm. This is especially true if you also have automatic data-sync enabled and your phone is trying to sync a lot of apps over a weak signal. You could test this out by leaving your phone in airplane mode for a few hours. If you get no battery drain then, it's probably a weak signal causing the problem.
Above post is True. When I was in school in a full concrete building I drained heavely. At 10 hours I drained 2 full batteries with my S2.
Try turning in the airplane mode and you'll see a big diffrence. Turn it off When u have a break and are outside.
Btw 30% battery usage on 7 hours isnt bad..
Sent from my HTC Sensation XL with Beats Audio X315e using xda premium
I am at lowest cpu usage when the screen is off which is 90% of the time.
Sent from my Galaxy Nexus using Tapatalk 2
dakota.breeden said:
I am at lowest cpu usage when the screen is off which is 90% of the time.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Even with the phone completely unused and idle and the screen off, if there is a weak signal the radio will be working overtime trying to stay connected to the mobile network, causing battery drain.
I don't know what happened with the 20120914 CM10 nightly, but I've been getting incredible battery life since flashing it (dirty flashed from M1).
Where I usually got something about 2h 50min of screen on time, I'm now getting 4h+. This is with 3G data, GPS, BT (no connected devices 99% of the time), WIFI, automatic backlight and screen rotation on, CPU at 1350 MHz and GPU at 384 MHz. Good times :good:
I have great battery life running stock with kernel, VZW leak that is, apologize if you're on another carrier
Sent from my Galaxy Nexus using xda premium
Hey guys, has your battery life improved at all since 4.2?
check wakelocks with better battery stats
dakota.breeden said:
Hey guys, has your battery life improved at all since 4.2?
Click to expand...
Click to collapse
Have not noticed anything remarkable.
Sent from my Galaxy Nexus using xda premium
Hey guys I'm loving this phone and all but I just want to get everyone else's opinions about how smooth everything has been running. On my end the LG is AMAZING, very fast and buttery smooth. I always run it in eco mode with the screen set at 65% most of the time. I do encounter a few bumps every now and then. For example my battery is cool when I'm on WiFi but as soon as I use 3g (no 4g in LA yet) it goes to ****. The phone starts to heat up as well. I think this may be a soft wear issue and could be fixed with an update from LG. Also it seems that this phone has a hard time connecting to 3g at times even when I'm outside. If anyone else is having the same issues please share. Thanks
Sent from my LG-LS970 using xda app-developers app
I actually just turned off quad core assistance and connections optimizer and eco mode, because, the battery seemed to drain too fast. Now it is lasting alot longer. I will have to see how it does on a full charge tomorrow, going on 11hrs and at 24% this has been mostly at work where I go from no signal, to roaming, to 3g to 4g depending on where I am at in the building.
I must say I get 4g at my house and work when I am in my office, and this phone is awesome on 4g!!!!!
Sent from my LG-LS970 using xda app-developers app
Battery life is awesome. I have my screen set to 50%. I use connection optimize all the time. I actually find better battery life with it out on even though I am not connected to Wi-Fi. Eco mode it's set to come on at 50% battery life. After a 9 hour day at work my battery is usually at about 85% light use of course. My old samsung epic would be at 30%-40% when I would leave. This phone is amazing. I can't wait for some roms to start coming out.
Sent from my LG-LS970 using xda app-developers app
Hey everyone,
My battery life is at 65% with only 3H "on battery" time.
The screen has used up 52% of my battery life -_-
It's on Automatic settings...
Any advice.. this is a HUGE battery drain.. should i turn off Automatic and just set it to something lower?
computermilk said:
Hey everyone,
My battery life is at 65% with only 3H "on battery" time.
The screen has used up 52% of my battery life -_-
It's on Automatic settings...
Any advice.. this is a HUGE battery drain.. should i turn off Automatic and just set it to something lower?
Click to expand...
Click to collapse
I am having the exact opposite. Did you fully charge it overnight?
Received my s4 last night. Fully charged over night. been using it for all morning adding apps over 4g, spotify, screen display, etc
5h/1m on battery with screen on alot etc, and 66% still
bezerker said:
I am having the exact opposite. Did you fully charge it overnight?
Received my s4 last night. Fully charged over night. been using it for all morning adding apps over 4g, spotify, screen display, etc
5h/1m on battery with screen on alot etc, and 66% still
Click to expand...
Click to collapse
my advise to yall is turn off wifi, gps, bluetooth and sync wen not using them
Yeah, I had the opposite yesterday. Charged to full, screen on 50% brightness for 3+ hours, benchmarking, all sensors on, etc.
Today its still going strong. Bad battery maybe?
Sent from my SGH-M919 using xda premium
seems like its just you. i have everything on and im currently at 50% with 6 hours mid-heavy use
Here are my results after 6 days of use.
Sent from my SAMSUNG-SGH-I337 using xda premium
peaster3 said:
Here are my results after 6 days of use.
Sent from my SAMSUNG-SGH-I337 using xda premium
Click to expand...
Click to collapse
Damn! That looks impressive. Are you using the i9500 or the i9505? Also, what did you have enabled/disabled and how heavy were you using your device? It looks like you could last an entire 24 hours on one charge.
if someone can tell me the button combo to take a screenshot ill upload mine
I was shocked my battery lasted all day with wifi and bluetooth on. Something must be wrong with your unit. I am just now charging it - 14 hours later after HEAVY use of texting and internet all day today. I even use the face recognition to unlock the screen.
TheAtheistOtaku said:
if someone can tell me the button combo to take a screenshot ill upload mine
Click to expand...
Click to collapse
its power + home
btw yeah; the battery life in the s4 is exellent.
i have no problems like the OP
Heavy usage.
50% brightness
WiFi on
Download a ton of apps that I had on old phone. That's took forever. Seems better then galaxy s3.
1st charge
Sent from my SGH-M919 using xda app-developers app
Sent from my SGH-M919 using xda app-developers app
computermilk said:
Hey everyone,
My battery life is at 65% with only 3H "on battery" time.
The screen has used up 52% of my battery life -_-
It's on Automatic settings...
Any advice.. this is a HUGE battery drain.. should i turn off Automatic and just set it to something lower?
Click to expand...
Click to collapse
To cure your problem. ....
New device for first time comes to life doesn't have calibration set by OP system. .....
So first charge your phone to full and go beyond warning to charge and go down to 3-4 % remaining charge then plug to charge and charge without stopping to 100%
And do 2-3 times like this then your battery discharge will show properly
Also good habits are to use .....
Hold home button for 2-3 second and open little bottom screen click on bottom left and choose ram.....then clear ram....any time you going to idle and each time you going to charge. .....to find more about what this do search XDA .....
Also there is many hungry apps on market that runs under ground all the time. ....so learn and discover how to take control of your phone and make it run like champion
#2 you can use ES task manager to do some fine tuning to get the most juice of your battery
#3 Better battery stats
#4 Battery booster
#5 Juice defender. .....are some alternative to top of the iceberg on your solution. ....or you can take time and learn to do all this by yourself manually
Sent from SGH-S959G
I'm pretty happy with my battery life
Sent from my SGH-M919 using xda app-developers app
People saying the battery life is a small bump from the S3 are insane... Its a HUGE bump!
Sent from my SGH-T999
Only used the S4 for two days so far, but the battery life is only slightly better than or equal to S3 for me.
Is everyone who posted on LTE or just hspa+, 2g etc?
I notice a big improvement ( like another person mentioned in another thread) when lte is off. My speedtest results between lte and hspa were the same download speeds but lte had better upload by two megabit.
battery life for me is great, then again im coming from an htc amaze lol. That battery suuuucked.
update
I did a few more tests w speed test.net and noticed that when on HSPA plus and not on LTE I actually get faster download speeds. On LTE it was 8 to 10 megabits the last 24 hours and now HSPA plus I'm getting 18 to 21 megabit down. Anyone know why this might be?
P.s. live in Manhattan NyC.
criticalchild said:
Is everyone who posted on LTE or just hspa+, 2g etc?
I notice a big improvement ( like another person mentioned in another thread) when lte is off. My speedtest results between lte and hspa were the same download speeds but lte had better upload by two megabit.
battery life for me is great, then again im coming from an htc amaze lol. That battery suuuucked.
update
I did a few more tests w speed test.net and noticed that when on HSPA plus and not on LTE I actually get faster download speeds. On LTE it was 8 to 10 megabits the last 24 hours and now HSPA plus I'm getting 18 to 21 megabit down. Anyone know why this might be?
P.s. live in Manhattan NyC.
Click to expand...
Click to collapse
Depends when you do the test because more people may be on the network at certain times. But I thought lte wasnt launched in nyc yet...
Sent from my SGH-T989 using xda app-developers app
I was considering picking one of these up if the battery was better than what I'm getting with the One but sadly this seems worse. I'd like to see more results before concluding that it's any worse.
Sent from my HTC One using xda premium
xXchrizhurtyXx said:
Depends when you do the test because more people may be on the network at certain times. But I thought lte wasnt launched in nyc yet...
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
you could be right.
the representative told me LTE was in New York City but as we know they know nothing... its still weird that when the phone is set to LTE auto he gets slower speeds than one connected on HSPA plus.