yashsingh1/xdaforums huggingface dataset:
[Eee Pad Transformer Q&A, Help & Troubleshooting] GuestK00429:
Nevermind. Here is what I have done to make it work:

1. I unplugged the charger and checked it

2. I flashed through TWRP and pressed Settings -> Fix Permissions, then flashed the Insecure Stock Kernel as I am rooted

3. I cold booted the device

4. I uninstalled the suspect apps which I think that they didn't let the tablet charge correctly

5. I downloaded some battery drain apps and drained the tablet to 0% while watching a movie and playing

6. I plugged in the charger again and let it charge for 4 hours (ignore the red battery icon)

7. I turned it on and it was 100% charged.

8. I uninstalled the apps that drains my battery

9. I hope it charges now, lol.
[Eee Pad Transformer Q&A, Help & Troubleshooting] Lethe6:
This is a known issue for lots of devices. I have this issue with my TF101 and my MacBook Pro.

From http://guides.macrumors.com/Laptop_Battery_Guidep/:

What is "full cycle"?

A cycle is when the total battery power is less then 50% before it is recharged. The battery electronics monitor the status of the cells during use, and not cycling the battery at least once a week may cause the electronics to get false recordings. It is best to fully drain the battery before you charge it up again. Seeing a fully charged in your battery status monitor as 99% is a good indication to fully cycle your battery.

Thus it's always good to completely drain your battery and charge it fully at least once a month, preferably more. Apple offer a calendar reminder to do it monthly on their website.
[Eee Pad Transformer Q&A, Help & Troubleshooting] *Detection*:
It won't charge if it is already charged 95% or more

Drain below 95% then it will charge to 100%
[T-Mobile Samsung Galaxy S 4] computermilk:
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?
[T-Mobile Samsung Galaxy S 4] bezerker:
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
[T-Mobile Samsung Galaxy S 4] marcoveli:
my advise to yall is turn off wifi, gps, bluetooth and sync wen not using them
[T-Mobile Samsung Galaxy S 4] Toleraen:
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?
[T-Mobile Samsung Galaxy S 4] TheAtheistOtaku:
seems like its just you. i have everything on and im currently at 50% with 6 hours mid-heavy use
[T-Mobile Samsung Galaxy S 4] peaster3:
Here are my results after 6 days of use.
[T-Mobile Samsung Galaxy S 4] coolpepp:
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.
[T-Mobile Samsung Galaxy S 4] TheAtheistOtaku:
if someone can tell me the button combo to take a screenshot ill upload mine
[T-Mobile Samsung Galaxy S 4] ceralon:
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.
[T-Mobile Samsung Galaxy S 4] wavrunrx:
its power + home

btw yeah; the battery life in the s4 is exellent.

i have no problems like the OP
[T-Mobile Samsung Galaxy S 4] hollisterryann:
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
[T-Mobile Samsung Galaxy S 4] samprocat:
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
[T-Mobile Samsung Galaxy S 4] TheAtheistOtaku:
I'm pretty happy with my battery life
[T-Mobile Samsung Galaxy S 4] EtherealRemnant:
People saying the battery life is a small bump from the S3 are insane... Its a HUGE bump!

Sent from my SGH-T999
[T-Mobile Samsung Galaxy S 4] Lolento:
Only used the S4 for two days so far, but the battery life is only slightly better than or equal to S3 for me.
[T-Mobile Samsung Galaxy S 4] criticalchild:
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.
[T-Mobile Samsung Galaxy S 4] xXchrizhurtyXx:
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...
[T-Mobile Samsung Galaxy S 4] jonathan3579:
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. :o
[T-Mobile Samsung Galaxy S 4] criticalchild:
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.
[T-Mobile Samsung Galaxy S 4] Pinan:
I'd easily get 6-7 hours screen time, but I simply don't use it that much.

To me, the 5.5 days speaks of the tuning of the phone. The tweaks if you will. Many peoples phones die after less than a day of use, with little use at all. My S2 would go three days tweaked the same way, so the S4 has a great battery/bones.

Really just a game to me.
[T-Mobile Samsung Galaxy S 4] the67ace:
well how do you get those 6-7 hrs of screen on time?? what setting would u recommend??
[T-Mobile Samsung Galaxy S 4] Pinan:
The list is quite extensive. I wrote some of it in another thread here:

http://xdaforums.com/showpost.php?p=42739403&postcount=98

Note that although that's posted in the Battery King thread, I was running Wicked v.1, and the OP asked me for the information, as did others.

I am now putting Battery King through it's paces and it's looking very good. About 0.4-0.5%hr drain sleeping, first charge.

Hope this helps some users out there in Android land.
[T-Mobile Samsung Galaxy S 4] squashai:
I generally get ~4 hours screen on time, depending on sync and connectivity. I usually have sync on, including push sync for exchange, and I leave 4G/Wifi on all day.

Right now, I'm at 19h28m on battery, and 24%. With 3h11m of screen on time.

Not as much as I'd hoped, but its enough to make it a whole day without a charge.
[T-Mobile Samsung Galaxy S 4] cproaudio:
My personal best on stock battery, stock MDL ROM, rooted, TWRP, debloated with Titanium Backup. Got rid of all T-Mobile junk as I'm using it on AT&T. Got rid of all Play apps except the play store. Got rid of some Samsung apps. Turned off all sensors. The 34 on the left is battery temperature in C.
[T-Mobile Samsung Galaxy S 4] lalec:
You could try reading the thread just below yours. It tells you exactly how to solve your problem.

http://xdaforums.com/showthread.php?t=2338487
[T-Mobile Samsung Galaxy S 4] Pyliokas:
So its my second day using galaxy. Im a little worried about thr battery life. Ive read a lot of topics about baterry life seems like im not the only one having problems. Im at 34% right now. Mostly phone has been in idle. Screen used for 2hrs. Everything is turned off. Did some web browsing. In the morning it used 8% for roughly 30 min of web surf. Any ideas what might be wrong?
[T-Mobile Samsung Galaxy S 4] kevinrubio1:
Any updates on how to increase battery time?
[T-Mobile Samsung Galaxy S 4] lordcheeto03:
Here recently, I've noticed my idle battery drain going up. I've done Skipjack's Google services tips and have almost completely eliminated that particular drain, but I'm still getting over 1.5%/hr drain from phone idle. BBS isn't showing any significant wakelocks, and even shows that the majority of the time my device is in deep sleep. What would cause that? Is that just a normal occurrence from not always having the patience to let the battery run itself all the way down before each charge and/or leaving it on charge after the charging cycle is complete?
[T-Mobile Samsung Galaxy S 4] samprocat:
Most likely your network strength isn't very good and also look if you keep sync on all the time ......that there is no hungry app ot poorly developed for galaxy S4......there is still many apps that aren't updated well for 4.2.2 OS

SGH-S959G

---------- Post added at 02:40 PM ---------- Previous post was at 02:38 PM ----------

Your reception strength should give you answer on your question. .:cool:

SGH-S959G
[T-Mobile Samsung Galaxy S 4] Skipjacks:
See the first line of my signature for a link.
[T-Mobile Samsung Galaxy S 4] lordcheeto03:
You know, I can't believe I didn't think about the reception. I got the device while I was still on AT&T, with a working 3G Microcell... Always had full service, but since I dropped AT&T I've been stuck with the terrible service I get in this area.. Even still, I turn LTE off and have generally been using the "Use 2G Networks" option because that's about all I can get here... Nothing has changed as far as sync settings go; I haven't added any new apps since I switched to the S4 and I had AWESOME battery life when I first switched (even with google services running); so that only really leaves service reception or just battery degrading; and I'd lean more towards signal this early in the device's lifespan.
[T-Mobile Samsung Galaxy S 4] samprocat:
There is many things that can make this issue. ....not using refresh memory if keeping on and not used...just do some explore on ways how to take full control of your device:)

SGH-S959G
[T-Mobile Samsung Galaxy S 4] lordcheeto03:
What exactly do you mean be "not using refresh memory"...
[T-Mobile Samsung Galaxy S 4] himmgarip:
My bat. %46 wifi 2 hour

GT-I8150 cihazımdan Tapatalk 2 ile gönderildi
[T-Mobile Samsung Galaxy S 4] lojak29:
Hard to believe:what:

---------- Post added at 10:14 AM ---------- Previous post was at 10:11 AM ----------

Use greenify to hibernate apps and wake locks.

Theres also a thread on making google play services a user app and greenifying parts of the Google operating system without ill effect.

System tuner pro is part of the apps needed , its suppose to bump battery life to an ungodly amount of run time.

Not sure where the thread is but its in this forum.
[T-Mobile Samsung Galaxy S 4] ms2010:
Actually for me the battery life is excellent. 7hours of normal usage and 68%left
[T-Mobile Samsung Galaxy S 4] kd_bui:
My first day with the galaxy s4, the battery was going strong. Today, I unpluged the charger at 7:00 am (97%). I turned on the phone after 30 mins driving to work and it was 85%. I am not sure what happened there but I am starting to worry about battery life. I thought this suppose to last longer. Thats 1% for every two mins on idle. Will post an update tomorrow.
[T-Mobile Samsung Galaxy S 4] ywlscpl:
//nod
[T-Mobile Samsung Galaxy S 4] peaster3:
The I-337 (AT&T) is what I'm using. The phone is stock, but I disabled most of the ATT apps, but kept most of the Sammy apps. 2+ hours of screen time is above average for me, but I tinker with my S4 all day.
[T-Mobile Samsung Galaxy S 4] manianapai:
U could bought some extended battery, I believe there are some 5200 mAh batteies in the market.
[T-Mobile Samsung Galaxy S 4] kd_bui:
The battery is going strong today again. Unplug at 7:00 am and at 8:36 am the phone has 93% with heavy use (texting and web browsing).

I also noticed 4g LTE symbol but the phone signal is at 0 when LTE is detected. I can still make calls but then it switch back to 4g. I am from DFW so please let me know what is going on. Thanks.
[T-Mobile Samsung Galaxy S 4] EtherealRemnant:
DFW has unofficial LTE in some areas, specifically just for testing purposes - the reason that you are able to make calls with a zero LTE signal is because calls go over the UMTS, EDGE, and GPRS networks. I'm essence, LTE runs side by side with 1G, 2G or 3G at all times. This is the same with every carrier because the VoLTE tech is not available yet.

Sent from my SGH-T999
[T-Mobile Samsung Galaxy S 4] GhostLeader:
today I used my S4 the whole day and it has 50% remaining. One day before I reached 50% in some hours.

You wonder why it hold today much longer? I deleted the whole bloatware from Google, Samsung and etcetera.

(MDM with CF-AR, modified by DJembey :) )

Dont forget to deactivate the LTE mode to GSM/WCDMA, when you dont need LTE (only GT I9505 users)
[T-Mobile Samsung Galaxy S 4] kikkiraj:
Check this out.
[T-Mobile Samsung Galaxy S 4] skivnit:
Everything on except sync. Brightness at full auto
[T-Mobile Samsung Galaxy S 4] lucaslion:
all tecent devicice like this

:D, big screen. powerful cpu. this need a lots or
[T-Mobile Samsung Galaxy S 4] Hoggles:
Just a friendly psa

....As I have yet to see someone mention this and it seems like people are turning on their S4 without thinking about an important manufacturer warning.

I just got my S4...what a beauty. But as I mentioned...have not powered it on yet. I formatted my SD card, put in the sim, stuck in the battery and plugged it in.

T-Mobile states in their setup guide, to

fully charge the S4's battery BEFORE you turn it on for the first time

:

"Although the battery come partially charged, you must fully charge this battery before using the device for the first time"

There is probably more misinformation about battery life & proper charging, than anything else. Whether or not it's true...If it states it in the manual with an emphatic "must"...not "if you feel like it", it's probably a good idea to follow, as I'm sure that info is straight from Samsung.

The hardest part will be waiting the few hours before that LED changes colors in indicate fully charged :silly:

I don't feel anyone can complain about battery life issues unless you've followed those directions.... in my opinion.

Cheers! :good:
[T-Mobile Samsung Galaxy S 4] dtrwos:
I'm seeing 15-20 hours battery life while messing with the new phone, and now a couple days in as much as 30 hours with juice defender running, low brightness, and the device face down on my office desk most of the day - ie my real world usage.

I'm quite happy about the battery life thus far - even day 1 it lasted 16 hours with brightness on auto and open signal maps running in the background all day.
[T-Mobile Samsung Galaxy S 4] Classie83:
This phone has excellent battery life. My phone is idling most of the time during work. I may check an email or two. When I leave work, I listen to about 45 minutes of music. At home I make a couple calls, texts, and use the internet heavily. On the weekends I get about 14 hours of life with normal usage which includes music, a couple YouTube videos, texts, a few calls, etc. I now have Juice Defender Plus on and have insane battery life.
[T-Mobile Samsung Galaxy S 4] chakra:
Lithium-Ion – Li-ion batteries are the newer type of battery that are found it most newer cell phones (most definitely most, if not all, smartphones use Li-ion and many “dumbphones” use them too now). Li-ion can be thought of as “smarter” than NiCad batteries; Li-ion batteries don’t suffer from the “memory effect” and thus don’t need to be conditioned like NiCad batteries.

Rather, to condition a new Li-ion battery, fully charge it; it should be allowed to charge for 7-8 hours on the first, initial charge. In other words, when you get your new cell phone – and it has a Li-ion battery – allow it to charge for 7-8 hours even if the cell phone claims to be fully charged. (It is preferable to use outlet charger vs car charger or USB charging via computer because of the voltage difference.) After that, there is no reconditioning necessary for Li-ion batteries since they don’t suffer from the “memory effect”. However, be sure to avoid fully draining/discharging the Li-ion battery as much as possible; every time a Li-ion battery is fully discharged, it loses battery power and life. (That doesn’t mean your battery will die if it is ever fully discharged; it means it is best to avoid fully discharging when possible.) Try to recharge Li-ion batteries when they are at 15-25%. Similarly, avoid heat as much as possible and when (if) storing Li-ion batteries, store them not at full charge.

Update: The only time you should ever intentionally fully discharge a Li-ion battery is if your phone is not properly reading the battery. In other words, if you go from 100% -> 90% in ten minutes but go from 90% -> 80% in one hour with the same amount of usage, that means your phone is not reading the battery output evenly. If this is the case, then fully discharging your battery once and then recharging it can fix the issue of your phone not reading the battery properly. Take note, however, this full discharge/recharge won’t increase your battery life — it will only ensure your phone reads the battery properly.

People often confuse Li-ion and NiCad batteries and try to condition Li-ion batteries by charging/discharging them 4-6 times. Trying to condition a Li-ion battery like it is a NiCad battery (i.e. charging/discharging the Li-ion battery 4-6 times) hurts the Li-ion battery more than helps it. So, be sure to condition your new cell phone’s battery, but be sure to condition it properly. Otherwise, you may be doing more harm than good. If you are not sure what type of battery you have, read the labels on the battery – they will always say whether the battery is Lithium-ion or Nickel-cadmium. Good luck and may we all have long lasting batteries =D.
[T-Mobile Samsung Galaxy S 4] aznmode:
I find the battery life on par with my s3. But then I do have a lot of the features enabled. Definitely not better than my note 2. I was hoping it would be.
[T-Mobile Samsung Galaxy S 4] TeknoGodz:
I can also confirm that even though this phone does have great battery life, especially in comparison to S3, it's definitely NOT as good as the Note II's battery life.
[T-Mobile Samsung Galaxy S 4] will6316:
I cuncur
[T-Mobile Samsung Galaxy S 4] l0ngxnguyen:
Well, Duhhhhh!
[T-Mobile Samsung Galaxy S 4] TeknoGodz:
1) Don't patronize me, and if you do at least use proper grammar.

2) Your post is helping nothing, if you have nothing useful to add to the conversation just don't hit the damn reply button because no one want to hear it. My post at least would be helpful to the large group of people that come here to try and decide if they want to go with the S4 as their new phone, yours does absolutely nothing for no one.

3) What in the hell do you mean duh? It could've gone either way. One one hand the S3 has 1080p resolution with a new pixel matrix and higher ppi, on the other hand the Note II has only a slightly larger battery and an additional over .5 inches on the screen, it was really anyones guess as to which one would get better life, and I was simply confirming that the Note II wins. Why duh?

Think before you post, guy.
[T-Mobile Samsung Galaxy S 4] jawang26:
Battery life has been bad for me, 1st charge I charged it 7-8 hrs and had spent about 30 mins setting up the phone and installing the apps on wifi..it dropped about 8% in this span. Woke up this morning and its at 64% after 9 hrs of non use and being on wifi, I'm hoping it gets better but this is my 2nd GS4 and the 1st one had unimpressive battery life as well. I'm not using juice defender or any air gestures all I have is auto brightness and sync on. Not sure how some people are getting really good battery life
[T-Mobile Samsung Galaxy S 4] bgaccord:
Weird u guys have bad battery life. I got 5 hrs screen time and 15hrs total. What help me was turning off haptic feedback.
[T-Mobile Samsung Galaxy S 4] i4mt3hwin:
If you spent 30 minutes screen on for 8% battery that's like as good as its' going to get. That's equivalent to 6+ hours screen on -- so I'm not sure what you're expecting there. As for the idle drain, some rogue app must be causing that because I left mine unplugged sunday night and it only dropped 9% in 8 hours.
[T-Mobile Samsung Galaxy S 4] cbutters:
I'm not a real heavy user, probably 2 hrs of screen time a day, and this is the first time in a while that I have had a phone that I've felt I could make it through 2 full days with light use if I really had to. I haven't even bothered charging it at night, just plugging it in for a few hours while I am at my desk. I also am not bothering with the power save mode, and I do have all the AIR gestures turned off. Will post a screenshot later (just charged so nothing to show right now.)
[T-Mobile Samsung Galaxy S 4] skivnit:
That shouldn't happen neither it should drain 0,3 prct per hour so that's 2.4. Mine drains 0.5 an hour
[T-Mobile Samsung Galaxy S 4] i4mt3hwin:
Well it's going to depend on what you have going on in the background. I have 3 exchange and two gmail accounts syncing all night. Plus I use the quick glance gesture so it's running that sensor constantly.
[T-Mobile Samsung Galaxy S 4] jawang26:
Yeah not sure, why im getting such bad life..I have 1 gmail account, Facebook and Instagram thats pretty much it not sure what else would be running in the background this isnt my 1st android phone so I know what I'm doing I'm not expecting the same life as my note 2 but I was hoping to get 12-14 hrs out of it...Right now I would say its actually worse then my S3 which isnt right...Hopefully I can figure out whats wrong or it gets better or it's going back
[T-Mobile Samsung Galaxy S 4] l0ngxnguyen:
That was a good bed time story. Thanks guy.
[T-Mobile Samsung Galaxy S 4] jawang26:
Just wondering I checked my battery stats so far Google Play Services is killing my battery over the screen ....39% vs 23% anyone have any ideas?
[T-Mobile Samsung Galaxy S 4] aznmode:
Do you have auto update enabled?
[T-Mobile Samsung Galaxy S 4] jawang26:
Yeah I just checked it and it was on I'll go ahead and turn it off hopefully that helps thanks
[T-Mobile Samsung Galaxy S 4] janduin:
I just tested mine, and for some reason I'm getting pretty bad battery life, especially in comparison to my Galaxy Nexus.

I just charged it to full, then left it unplugged overnight. In that time I lost 9% battery in 7.5 hours. With everything turned off. No special features, nothing besides just having the phone connected to the network.

picture doesnt seem to be working.

device idle: 52%

android os: 18%

cell standby: 16%

maps: 6%

screen: 5%

phone: 2%
[T-Mobile Samsung Galaxy S 4] ccldb:
Does leaving the phone on charger for extended period also hurt battery?
[T-Mobile Samsung Galaxy S 4] pilot_xphile:
In my case I am very happy with the battery life on my phone.