Database Develop

Poor Battery Performance

I have had my Galaxy S for a bit over a week now and am pretty disappointed with the battery performance. Most days I take my battery off the charger at 7am and it reaches 15% low battery warning by 1-2pm. I do spend a fair amount of time reading XDA and listening to music. I'm currently running Stock JM1 firmware with no lagfixes.
Here's a list of my apps that I have installed:
http://www.appbrain.com/user/Lokhor/apps-on-the-samsung-galaxy-s
I am running JuiceDefender which I thought would make a big difference and does not. I have also set Tasker to change the Brightness level to 20 (below the safety threshold) when the battery reaches 50% or below, otherwise the brightness is at the minimum (30%).
I have heard that you need to condition the battery so I have been trying to do this but it doesn't seem to have had much effect. Today I used my phone only casually and it's currently at 22% after 12.5 hours. The battery use details show the following:
Display at 56% being on for 2h22m and 13s.
Cell Standby 18% Time on 9h21m, time without signal 13%
Phone Idle 7% Time on 7h33m
Android System 5% CPU usage 23m39s CPU foreground 24s
Android OS 3% CPU Usage 13m 27s
Is this normal? Is there anything I'm doing wrong?
Please help

I don't know what others are telling you about conditioning a LiIon battery but you don't have to. LiIon batteries don't suffer from what NiCad do. Some do suggest wearing the battery down to nil and then charging it up again. However, this is pretty bad for the battery and should not be done more than once every 30 cycles. With every LiIon battery I've ever owned I've either trickle charged it or charged it when it wasn't too low and they've all lasted over 3 years. I've never conditioned one.
Anyway, my advice to you is to see how long your battery lasts in standby. Mine could probably last 3 days or more if I don't bother it too much (with sync, wifi and all that good stuff). I find the worst contender for battery drain is the display. The only problem I see with your stats there is that I've played Asphalt5 for around an hour and a half which is quite heavy on juice and it only drains roughly 10%-15%. Then again you're browsing the web so maybe probably worse.

Oh, and when charging your phone, don't use the USB hooked up to a computer as it doesn't stop charging when it's full. Use the wall charger to charge.

no need to worry more
just get this http://forum.xda-developers.com/showthread.php?t=733705
lokhor said:
I have had my Galaxy S for a bit over a week now and am pretty disappointed with the battery performance. Most days I take my battery off the charger at 7am and it reaches 15% low battery warning by 1-2pm. I do spend a fair amount of time reading XDA and listening to music. I'm currently running Stock JM1 firmware with no lagfixes.
Here's a list of my apps that I have installed:
http://www.appbrain.com/user/Lokhor/apps-on-the-samsung-galaxy-s
I am running JuiceDefender which I thought would make a big difference and does not. I have also set Tasker to change the Brightness level to 20 (below the safety threshold) when the battery reaches 50% or below, otherwise the brightness is at the minimum (30%).
I have heard that you need to condition the battery so I have been trying to do this but it doesn't seem to have had much effect. Today I used my phone only casually and it's currently at 22% after 12.5 hours. The battery use details show the following:
Display at 56% being on for 2h22m and 13s.
Cell Standby 18% Time on 9h21m, time without signal 13%
Phone Idle 7% Time on 7h33m
Android System 5% CPU usage 23m39s CPU foreground 24s
Android OS 3% CPU Usage 13m 27s
Is this normal? Is there anything I'm doing wrong?
Please help
Click to expand...
Click to collapse

I found that charging it whenever it was convenient instead of when it was low would result in a charge that lasted ~24 hours.
I've noticed significant increase in battery life since I started waiting for the 15% charge warning, plugging it in till it was full and then unplugging it. I get 2-3 days of use this way.
I also set my email to only sync between 6 AM and 11 PM. I believe this helps a lot as well.

since we are about this topic, check this out
How to spot fake battery vs. OEM battery: http://forum.xda-developers.com/showthread.php?p=7953322

so if I'm listening to music during the day at work should I have my phone plugged into the wall charger or just let the battery run down?
Last night I took the charger off at midnight when it was full and when I woke up it had only dropped 5%. After reading my emails quickly it was at 93%.

it works fine either way
read this
http://forum.xda-developers.com/showthread.php?t=769208

I find leaving the brightness on automatic uses up loads of battery. Setting it to lowest seems to make the phone last 24hrs+
I also found that having beautiful widgets clock/weather installed used up a lot of battery for some reason.

I don't use weather because it has to sync every so often to update it which to me is a waste...I'll just look outside. I also leave brightness on the lowest setting wherever I am as the screen is already very bright (why waste battery?).

My experiences with my SGS have taught me to be conservative with its battery. Anytime you turn the screen on, you eat power like crazy. The best bet is to just top her off whenever the need arises. Personally, I have found that I'm fine just topping her off in the car when I'm driving, so that I start my work day at high 90's, and especially once I've got my morning browsing out of the way, I don't eat a big chunk of battery at any other time.
But yes, if you find you are running low, you can happily just take a half hour to charge from a USB port to give you an extra boost. Alternatively, spare batteries and so forth do the same thing, although it can be annoying if you don't have a charger that will do the phone and a spare battery at once.

im experimenting with apndroid now to turn of 3g then i dont specifacly need it. It comes with an on/off widget. Looks promising so far. 40% at 2300 hour and then i have used wifi a bit, played angry birds and talked for about 2 hours in total.

Battery life and Charging time

I've owned the Samsung Focus S now for 12 days. I came from an android bionic. I have owned Windows Phones before, the Venue Pro and the Hd7. But this is my first Samsung.
For the first few days, the battery life was fine, a full day. But this past week I find my self hard pressed to reach a full work day. I don't play music during the day nor do I have many, if any calls. Mostly SMS and internet.
I've turned off as many background tasks as acceptable, limited the number of live tiles, set brightness to auto, and check email off of push. Yet this morning I reached 20% in about 8 hours.
In addition, I find the time to charge is extremely long. It might take 4-6 hours to fully charge from 80%.
Is this normal for a Samsung?? My other windows phones, and my bionic certainly do no present the same battery problems as this one does.
Thoughts, or is this usual?

Do you have wi-fi turned on? This is a real battery burner...
My Focus S usually goes through about a day and a half before I need to recharge. That's with a few phone calls, some messages, a bit of wi-fi browsing at night, etc. Email only gets checked every hour but it's on 3 different accounts.

drtolson said:
Do you have wi-fi turned on? This is a real battery burner...
My Focus S usually goes through about a day and a half before I need to recharge. That's with a few phone calls, some messages, a bit of wi-fi browsing at night, etc. Email only gets checked every hour but it's on 3 different accounts.
Click to expand...
Click to collapse
while I'm home WiFi is on. Away from home its off. This is normal behavior for all my phones. All of them last at least 18-24 hrs, under the same condition.
Took it back to art. They said , lets try a different battery. I'm willing to try it for now.

I just wanted to add to this as I seem to be experiencing a similar issue.
I purchased my phone at the end of Dec, it's been great.
Now, since around a week ago I've been having issues. I used to get roughly 2 days use per charge and it used to charge quickly.
Now, the phone runs hot, the battery drains in 6 hours or less, and it takes many hours to recharge.
I turned off the one app running in the background. I turned off wi-fi. It doesn't seem to help. The battery itself doesn't seem to be too hot, but it's hard to judge.

tinyiota said:
I just wanted to add to this as I seem to be experiencing a similar issue.
I purchased my phone at the end of Dec, it's been great.
Now, since around a week ago I've been having issues. I used to get roughly 2 days use per charge and it used to charge quickly.
Now, the phone runs hot, the battery drains in 6 hours or less, and it takes many hours to recharge.
I turned off the one app running in the background. I turned off wi-fi. It doesn't seem to help. The battery itself doesn't seem to be too hot, but it's hard to judge.
Click to expand...
Click to collapse
I did a factory reset, and got a new battery. I then reinstalled less than half of my existing apps. In addition I've set my display brightness to medium.
Battery life has doubled, and the charging is much quicker.
Read an article yesterday about ads in free apps eating about 35% more battery. Who knows.

Even if they're running in the background? My Focus S takes a lot of time to charge and decharges so fast. 35% is no joke.
---------- Post added at 07:41 AM ---------- Previous post was at 07:40 AM ----------
Even if they're running in the background? My Focus S takes a lot of time to charge and discharges so fast. 35% is no joke.

I'm also having some kind of battery issue, I have 2 batteries and they are both 100% charged but by the end of the day one is completely dead and the other is about 20%. I use my phone a lot for music and browsing over 4g and WiFi, but I charge by battery to 100% then go to the battery saver setting and at 100% it says time remaining about 5 hours. An when I turn on battery saver it says about 6 hours. On a full charge this seems crazy. Also with the homebrew battery monitor app. It says my phone is using over 4000mV. With screen set to low and in airplane mode. This is wierd.
Sent from my SGH-i937 using Board Express

goldenpipes said:
I'm also having some kind of battery issue, I have 2 batteries and they are both 100% charged but by the end of the day one is completely dead and the other is about 20%. I use my phone a lot for music and browsing over 4g and WiFi, but I charge by battery to 100% then go to the battery saver setting and at 100% it says time remaining about 5 hours. An when I turn on battery saver it says about 6 hours. On a full charge this seems crazy. Also with the homebrew battery monitor app. It says my phone is using over 4000mV. With screen set to low and in airplane mode. This is wierd.
Sent from my SGH-i937 using Board Express
Click to expand...
Click to collapse
4000mV? I assume you mean mA? not mV? 4000mV is only 4V which is about right, your voltage shouldn't change much, perhaps +-10% tops
if you do in fact mean Amps...
4000mA is 4A an hour, your battery would be dead in about 20 min at that rate and probably in fire as well
So, lets look at this in a different way,
2 batteries, that's about 3.3Ah max, you only had about 20% left in one which is approx 330mA so lets call it an even 3A of juice burned during your day.
An Average long day at work 12 hours
that's 250mAh current draw every single hour of that 12 hour day.
250 is quite high, but normal with the screen on and high brightness an wifi, however that isn't normal if you are normal and don't sit at your phone each hour for an hour for a whole day.
Things that can send your phone off on a amp burning spree? most common one is the backlight, set it to auto, and have a dark /black theme, AMOLED is the opposite to normal LCD screens where having a white background was best,
Next up is your signal strength, low 3G signal will eat your battery (4G is worse but thankfully we don't have that)
keep battery saving on all the time, it only kicks in when it needs to but I have seen dramatic differences having it turned off even with a full battery, im not sure what it changes when its not down to low battery but it does something.
background tasks can play a part but are minimal on WP.
I have 3 accounts on push sync, wifi and Bluetooth always on (but not always connected), I use it a lot during the day including several phone calls and web browsing, I start work at 8am, finish at 7 or 8 PM and im still sitting with 50% battery...
that works out at an average of just under 70mAh. that's about the normal level id expect, its double that if I turn battery saver off (even though it wont kick in until the last hour of the day)
oh I can make it go quicker when I show off the full capability's of our screens too

[Q] Battery Life on Xperia Z. Sucks.

Folks,
Can anyone suggest how much battery life they are getting on their device. Not sure it is a common problem or my device is defective.
It stays on for only 3 to 4 hours and dies, i.e. just a couple of messages and emails (albeit on 100% brightness and NOT on Stamina mode). Is it normal. Brightness to be kept on auto?
If I play video or so, battery goes from 100 to 10% in about 1 hour maximum.
Have juice defender installed. Also a task killer (which kills the background ones and they restart on their own). But not so much help though.
Any suggestions?

http://forum.xda-developers.com/showthread.php?t=2150786
There you go!

ram11 said:
Folks,
Can anyone suggest how much battery life they are getting on their device. Not sure it is a common problem or my device is defective.
It stays on for only 3 to 4 hours and dies, i.e. just a couple of messages and emails (albeit on 100% brightness and NOT on Stamina mode). Is it normal. Brightness to be kept on auto?
If I play video or so, battery goes from 100 to 10% in about 1 hour maximum.
Have juice defender installed. Also a task killer (which kills the background ones and they restart on their own). But not so much help though.
Any suggestions?
Click to expand...
Click to collapse
Try the battery guru snapdragon app,which works well for me.
Sent from my C6603 using xda premium

Get rid of juice defender, reduce brightness to 75% on usual daily use, and you should get around 4 to 5 hours screen on time, and up to 24 hours standby time.

ram11 said:
Folks,
Can anyone suggest how much battery life they are getting on their device. Not sure it is a common problem or my device is defective.
It stays on for only 3 to 4 hours and dies, i.e. just a couple of messages and emails (albeit on 100% brightness and NOT on Stamina mode). Is it normal. Brightness to be kept on auto?
If I play video or so, battery goes from 100 to 10% in about 1 hour maximum.
Have juice defender installed. Also a task killer (which kills the background ones and they restart on their own). But not so much help though.
Any suggestions?
Click to expand...
Click to collapse
snapdragon guru is not available for all region But lemme know about ur kernel and model; c6602 OR c6603?
little working with xZ just uses less than 20% in 24hrs
with 50% brightness & Stamina On

Xperia z is either having a software or hardware problem
I use a note 10.1 for two months and did gaming all the time with 3g on but it lasted for two days without charging. But the Z cant even handle 15 minutes of gaming. It goes down from 71% to 62% IN 15 MINUTES. I expected the update would fix the problem. But I dont see any difference. I was so curious with the Z. But I doubt that now. Is the fate of Sony going to be that of like Toyota.

Muawiyath said:
I use a note 10.1 for two months and did gaming all the time with 3g on but it lasted for two days without charging. But the Z cant even handle 15 minutes of gaming. It goes down from 71% to 62% IN 15 MINUTES. I expected the update would fix the problem. But I dont see any difference. I was so curious with the Z. But I doubt that now. Is the fate of Sony going to be that of like Toyota.
Click to expand...
Click to collapse
why are you comparing note 10.1 to the sony xperia z are you nuts
http://www.gsmarena.com/samsung_galaxy_note_10_1_n8000-4573.php
your comparing a 7000 mah battery to a 2330 mah you have to be mad to think your going to get the same performance out of the two. i swear some people are full of crap

It's not bad at all.
In the second image, the on screen time was 4 hours. Plus I used out for about 3 our 4 hours of calls.
Sent from my C6602 using Tapatalk 2

Reduce the brightness, using 100% is madness.

Root and install greenify then get rid of task killer and juice defense
Sent from my LT22i using xda app-developers app

On 100% brightness I wouldn't expect much more.
From experience I set my screen brightness to about 25%, which is more than enough for normal use indoors. If I need to use the phone outdoors or in sunlight I'll put the brightness up but it always goes back to 25% when I'm indoors again.
The only sync I have on mine is my Google account, everything else is set to manually refresh only.
On my 3rd day of owning the phone I had 24h+ of use from it, and that's still improving. My battery is on about 60% at the moment after 18 hours. If I turn on Stamina Mode it predicts another 2 days!
However, if I was watching videos at 100% screen brightness, I wouldn't expect much more than an hour or two. Horses for courses.

Not Normal
ram11 said:
Folks,
Can anyone suggest how much battery life they are getting on their device. Not sure it is a common problem or my device is defective.
It stays on for only 3 to 4 hours and dies, i.e. just a couple of messages and emails (albeit on 100% brightness and NOT on Stamina mode). Is it normal. Brightness to be kept on auto?
If I play video or so, battery goes from 100 to 10% in about 1 hour maximum.
Have juice defender installed. Also a task killer (which kills the background ones and they restart on their own). But not so much help though.
Any suggestions?
Click to expand...
Click to collapse
Your situation is not normal. Maybe the battery life on the Xperia Z sucks. Maybe it's all about managing your apps and stuff - but no. Not that much. Playing video shouldn't drain the battery 90% in an hour. I play streaming video over WiFi for 2 hours a day (boring train ride) and leave WiFi on and Stamina mode off all day. Maybe when I get home at the end of the day the battery is at like 30% and maybe I don't play with the phone much once I get to work - but video kills the battery in an hour? Not if it's hardware accelerated video.
I al sure some people will say "See what is running in the background", but I am not sure you would be able to drain your battery that fast even running like @home stuff.

After a few charge and when the battery is season it will be okay

charging
how long does it take to charge this phone? 0-100%

pacman82 said:
how long does it take to charge this phone? 0-100%
Click to expand...
Click to collapse
I'd say around 2.30 - 3 hours.
Sent from my C6602 using Tapatalk 2

I always just leave my phone to charge overnight

Bad Battery Life?

Hey guys, I've seen posts about people getting amazing battery life, both on stock and on a custom rom. I can never seem to get the same results, whatever I do. Sometimes, I'll toggle a setting and I'll see improvements for a day or two, then it goes back. Even more frustrating is there have been times when I turn the setting back to what it was and see improvements. It was like this for a while, but recently I've kinda gotten stuck with ~15 hours from 100% to 10% and nothing seems to change it. I have location on device only (its for weather, battery saving seems to be worse because Google services just syncs all the time and eats battery) and mobile data on. I've disabled pretty much every Verizon app and I just use moto display and the sleep thing. What else can I do to get better battery life short of a custom rom? The only reason I won't do a custom rom is because my parents won't let me spend $25 on sunshine, whether it's their money or mine.
http://imgur.com/a/92DBa

I exactly get the same results as you. I'm on stock and disabled all verizon apps. A help could be really nice.

Keep in mind that battery life varies GREATLY upon usage. I can kill my battery in a matter of a few hours or have it last for nearly a week. Sync frequency, sleep time, connectivity, refresh settings, screen brightness, CPU usage, vibration on/off, number of wake locks...I can go on and on.
For example, I had my S4 last 5 days before it dropped to 80%, as you can imagine I didn't use it much. However, that same phone died in probably 3-4 hours on me also.
What matters most is if you have more battery life than your previous phone. Never compare your battery life to others.
Sent from my DROID Turbo using Tapatalk

richii0207 said:
Keep in mind that battery life varies GREATLY upon usage. I can kill my battery in a matter of a few hours or have it last for nearly a week. Sync frequency, sleep time, connectivity, refresh settings, screen brightness, CPU usage, vibration on/off, number of wake locks...I can go on and on.
For example, I had my S4 last 5 days before it dropped to 80%, as you can imagine I didn't use it much. However, that same phone died in probably 3-4 hours on me also.
Click to expand...
Click to collapse
I included some usage statistics in the ingur link. A lot of battery seems to be used by Android os and android system. Is there anything I can do to lower this?

FrostedWaffle said:
I included some usage statistics in the ingur link. A lot of battery seems to be used by Android os and android system. Is there anything I can do to lower this?
Click to expand...
Click to collapse
What do you have your screen brightness set to? Your phone looks completely normal in terms of battery usage (Android/Google will always use a couple percentage).
Try turning off adaptive brightness and putting your device to the lowest brightness you can stand, that should add at least another hour or two depending on your current settings. 3 hours of SoT over a days usage with what looks like moderate use (YouTube, Messaging, etc.) isn't too bad for this phone.

miketoasty said:
What do you have your screen brightness set to? Your phone looks completely normal in terms of battery usage (Android/Google will always use a couple percentage).
Try turning off adaptive brightness and putting your device to the lowest brightness you can stand, that should add at least another hour or two depending on your current settings. 3 hours of SoT over a days usage with what looks like moderate use (YouTube, Messaging, etc.) isn't too bad for this phone.
Click to expand...
Click to collapse
Thanks for the advice! I guess I was expecting too much out of this phone Oh well, i'll just wait until i can get $25 in amazon or google play gift cards to pay for sunshine so i can get computerfreak's rom.

I am on CF's latest ROM and I'll say my battery life improved compared to stock, but not by much. I may get 6 hours SoT but my battery is down below 20% by the end of the day, and that is if I avoid playing games. Playing games all bets are off, the battery runs out quick.
There are some out there saying they get 8+ hours SoT and 48+ hours between charges. I call BS on that unless you are running minimum brightness and not doing any syncing or anything location based, and possibly even turning off cell data. Showing off with pictures of their battery stats and not telling the whole story.
Sent from my XT1254 using Tapatalk

If you unlock with Sunshine and install RR, you can use the custom kernel to tweak the CPU and GPU frequency to save battery life.
Additionally, there are other ways to save battery, like adjusting the pixel density and colors. (At least I think so?)

Greenify also helps. I think that is available for non-root as well.
Also, check your wake time. If always awake, could be the Google services running constantly trying to update.
There is an app to fix that, but I think it requires root.
Sent from my XT1254 using XDA Free mobile app

also, my phone really likes to shut off before it reaches 0% battery. Is this normal?

FrostedWaffle said:
also, my phone really likes to shut off before it reaches 0% battery. Is this normal?
Click to expand...
Click to collapse
I doubt its normal, buy I have noticed that mine does that too. It usually shuts down around 7% without warning.

battery or software problem??

I am software version shown in ss
I just bought the phone and only getting sot 30 mins for 10% of battery consumption i got like 4 and half hour of sot for 73% battery consumption i thought x2 pro have around 8 hr sot help me it's frustrating

Well that calculates to more than 6h SOT, which isn't that unrealistic if you used 4g and max screen brightness all the time, but there might be something draining the battery. Check the usage details. I see you use something connected to bluetooth so that might be causing the issue.

Bro i was using the brightness at 27% and nothing was connected to the Bluetooth

I installed betterbatterystats (bbs) xda edition and gsam battery app with adb rights. So you can see the deep sleep with bbs and the times of dot/phone time/ect and which app use how many ampere.
In this charging time I get 4,5 hours dot with 40 hours phone is on. I have now 34%.
Debloating, netguard firewall, no energy saving, always 90 hz.

Also i am having fps dropping issue during online gaming like pubgm or codm
What should i do to get normal 60 fps as this phone has 855+ so i can get 60 fps normally

I'm having even worse SOT and I have the same realme ui version.
I'm not as much hardcore user as a lot of you and looking at 4k mah battery I thought that I will be getting at least 7h SOT.
I'm not playing any games, right now most of the time phone is connected to wifi. What should I do? Debloat my phone? Is it somehow dangerous for my software? Can i ever go back to normal version?

location services destroyes battery on this device
i disable it for one day just to see the difference and it went from 4 hours SOT to 6 hours plus
always talking full brightness wifi some 4g 90hz
and from 100% to 1%

You have like almost 30 hours of standby, and if you use always on display, then that's at least 30% on that. If you consider this then it doesn't look that bad. You do the math. The other guy's stats concern me more.

You will need to make some adjustments, battery can be excellent but you have to be realistic,
Check out App quick freeze and freeze the apps you don't use.
Dark mode,
AOD off,Screen light effects off,
You just got the phone,tinker with it a while to see,
Also battery will drain a lot when your setting up the first day