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my battery just about lasts a day with small usage, when i click on whats using the power its 46% cell standby and 47% phone idle, 5% android system and 2% display is there anyway of bringing the cell standby and phone idle percentages down? or is this just the wildfire and battery which is supplied with it? got the phone brand new and been using it for less then 6 months?? thank you for any answers
Here's a little info I found earlier about an app called autostarts and also taskkillers, I've been using autostarts for a while now but just saw this today.http://forum.xda-developers.com/showthread.php?p=17236867
There's a few other things you can try to save a bit of battery life like calibrating your battery by wiping the stats from cwm when its just about flat then charging till full, never read a guide on this but I presume that's how it works (someone correct me if I'm wrong), there's a free app from the market I use called llama which can be setup to switch off wifi,GPS etc whenever the screen goes off or to use location to switch on wifi in a specific place etc......
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I'm starting this thread for us to share ways to have to the best battery life
Sent from my Samsung Galaxy 2
Another one?
Sent from my SGH-T989 using xda app-developers app
My phone lasts a really long time when I keep it plugged in.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
RTFOP said:
My phone lasts a really long time when I keep it plugged in.
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Haha mine too
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Best thing I have found is to totally drain battery to the point it the phone will only slightly vibrate. Remove the Battery. Put the battery back in and then fully charge with the phone on charge mode to 100 percent. Unplug. Then plug back in a few seconds later for fully charged to reappear. Done. Really helps to do this once every month or two. Credit to someone on another forum for this tip. Turning off data when not in use and low screen brightness will substantially increase battery life. No syncing, bluetooth or wifi will help. An app called GSam battery monitor will identify apps that suck battery. I use longevity by trend micro to shut my data off.
Sent from my SGH-T989 using Tapatalk
cpnfantstk said:
Best thing I have found is to totally drain battery to the point it the phone will only slightly vibrate. Remove the Battery. Put the battery back in and then fully charge with the phone on charge mode to 100 percent. Unplug. Then plug back in a few seconds later for fully charged to reappear. Done. Really helps to do this once every month or two. Credit to someone on another forum for this tip. Turning off data when not in use and low screen brightness will substantially increase battery life. No syncing, bluetooth or wifi will help. An app called GSam battery monitor will identify apps that suck battery. I use longevity by trend micro to shut my data off.
Sent from my SGH-T989 using Tapatalk
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Fully draining a lithium ion battery will significantly decrease it's lifespan. Any positive effects you see from this are probably not measurable, or scientifically reproducible. Your other tip is solid, disabling data (or using an app to do so) greatly increases battery life. As well as turning down the brightness.
daveid said:
Fully draining a lithium ion battery will significantly decrease it's lifespan. Any positive effects you see from this are probably not measurable, or scientifically reproducible. Your other tip is solid, disabling data (or using an app to do so) greatly increases battery life. As well as turning down the brightness.
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Had no idea this practice decreases lifespan of the battery. Good to know. I thought the this resets the phone ability to recharge the battery to the fullest. That's what I thought. I seem to be getting some benefit.
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cpnfantstk said:
Best thing I have found is to totally drain battery to the point it the phone will only slightly vibrate. Remove the Battery. Put the battery back in and then fully charge with the phone on charge mode to 100 percent. Unplug. Then plug back in a few seconds later for fully charged to reappear. Done. Really helps to do this once every month or two. Credit to someone on another forum for this tip. Turning off data when not in use and low screen brightness will substantially increase battery life. No syncing, bluetooth or wifi will help. An app called GSam battery monitor will identify apps that suck battery. I use longevity by trend micro to shut my data off.
Sent from my SGH-T989 using Tapatalk
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Great tip. Thanks
Sent from my GT-I9100 using Tapatalk 2
- Juice Defender
- Llama to automate a myriad of things related to power savings
- Darkside Venom kernel
- Badass / noop
- 1134/192
- CPUSleeper
- inverted apps for almost everything that I use heavy.
That's what I can think of right now.
Typically get ~5 hours "screen on".
That could be 12 hours or 2 days between charges.
Kent
Sent from my SGH-T989 using xda app-developers app
cpnfantstk said:
Had no idea this practice decreases lifespan of the battery. Good to know. I thought the this resets the phone ability to recharge the battery to the fullest. That's what I thought. I seem to be getting some benefit.
Sent from my SGH-T989 using Tapatalk
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Battery lifespan for lithium ion batteries is measured on how many cycles its been through (hits 100%). If you go from 90% to 100%, you just used up a battery cycle. Even 99% to 100% counts as a cycle.
The method you described in your earlier post is for conditioning your battery, it works on older batteries but is not needed for lithium or poly lithimer batteries.
Tips for battery life, disable radios and keep screen dim. A dark wallpaper helps too, white screens are a battery drainer!
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
Get a app that disables other apps that start up on system boot-up or other events. Autostarts its a good app I use. As you all should know dont use app-killers unless u know how and when to use them (READ). Like said keep ur screen dim or on auto if u have that issue like me were ur constantly going in n out at work and find ur phone too dim for daylight. The darker your themes the better battery life. Remember that ur screen is one of the top (if not the top) battery drainers. Data, wifi, gps, bluetooth, auto-sync, running widgets, live wallpapers...if you dont need it on or could live without it, then either turn it off or get rid of it.
Also like said before, lithium-ion batteries dont suffer from memory effect like older rechargable batteries. If you could avoid it, dont run ur battery all the way down. Be free to charge ur battery as often as possible and that way you extend the life of ur battery.
Sent from my Blutiful Hercules.
Use the lowested sync frequency setting you can or manally sync. Wifi tether guzzles juice. Live wallpaper is a killer. Make task killing a subconscious reflex. The smaller the number is next to "running in background" also makes for more time away from an outlet. Of course these may not help any one else, but it works for me
Fully charge 2 batteries. Unlimited talk and text. True story
Sent from my SGH-T989 using xda premium
I run the ParanoidAndroid 2.51 rom (10/24) with the KKO kernel and it goes pretty good so far. It may be the first day of using it but I will expectedly average 20hours of use on it. (using the live wallpaper phase beam the whole time). Used the wheatly governor with SIO and changed the max cpu to about 1028 so its only using 1Ghz. (seem to get decent battery life)
I hate to be the guy that asks this, but I just want to make sure as from what I understand this is different from phone to phone. From what I understand, Li-Ion batteries, like the GN2's, do not have a memory effect of any kind? And thus all battery calibration rituals and nonsense are entirely pointless for this handset?
The reason I ask is because I wasn't able to charge the device to 100% before use like I was always told to do with new phones. My device was turned on and used until it drained to around 10% at which point it was charged to 100%.
Now, after 2 weeks of use, I feel that my battery is not as good as it should be. I'm barely able to get more that 12 hours. I'd be happy to post some battery graphs in the morning.
One last thing, if I did mess up my battery, or if my battery is messed up or less functional than it should be, would buying a new battery fix all my problems?
Youvare right. All that calibration stuff is nonsense.
I have never charged my phone to full before using and draining the battery and my phone still lasts all day on mostly heavy use.
Could you post your batt stats?
Sent from my GT-N7100 using xda premium
Today I ran my phone with the "lowest" possible settings, that is lowest brightness, CPU power saving, and no haptic feedback. I did not turn off wifi. Doing this I was able to get a surprising 16 hours, although you can see from the graph that I didn't use my phone as much. Attached I have a screenshot of what it's like with the highest possible settings (no power saving stuff, and brightness all the way up, but no GPS). Sorry I don't have a pic of the percentages for the high settings, I never thought to do that.
What concerns me the most is this: even with the lowest settings, I'm only getting 2 hours screen time. (last pic)
What's interesting is that you would think that if I'm getting such poor screen time, there would be something else using a lot of battery, but there isn't. This led me to believe the problem was with the battery. I discovered a pretty big scratch on my screen the other day, and I have some monthly insurance plan from best buy, so I was thinking of just getting a new one. The longer I wait to get a new one, the harder it will be to set up everything again. lol
I noticed that compared to other GN2s, mine seems to wake up a lot when the screen isn't on. The awake periods tend to correspond with drops in battery and also when I have a poor signal. Could this be caused by my phone trying to look for signal and using battery?
Yes poor signal that results in the phone searching for better 3g/2g will drain the batteey faster.
Can you try using it in airplane mode with wifi only for a day and see how that goes?
Also install Better Battery Stats and after a day or so of normal usage check your partial unlocks to see if a rogue app is preventing deep sleep and sucking your juice.
Sent from my Nexus One using xda app-developers app
Yeah it us definitely your signal playing a role. Also you have a lot of wakelocks showing up
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Dude you have major wakelocks that eat up 80 % of your battery!
Go to application manager and remove all the apps you don't use.
K, I agree with my week signal using battery. I only have 75 apps on my phone and they're all pretty mainstream, no obscure apps. Right now im in school with 86% battery, I'm turning on airplane mode now. I have noticed however that when I clear my ram it closes like 50-60 processes each time. I am always closing my apps, but 50 seems extremely high. im gonna turn on airplane mode and see how that goes...
thanks!
Yes, you do have poor signal but that's not all. You have terrible wakelocks pal. Install BBS and monitor which apps are the culprit. It's not about 75 apps, even 2 or 3 bad apps, which have hidden advertisement going on could suck your battery flat in no time.
So first thing, install BBS. 2h screen on time is horrible!
Btw- If you're on 3G, try to switch to 2G. Difference will be unthinkable.
Sent from my GT-N7100
Thanks everyone! I'm really loaded with school work, so I don't have a lot of time right now. But long story short, airplane mode saves my battery like crazy. I started school with 86%, turned on airplane mode, and I'm at 79% right now! more later
Is it safe to say I fixed it?
3h screen over 2 days isnt bad right? Perhaps just a bit worse than what others are getting?
Sent from my SCH-I605 using xda app-developers app
Hi guys,
I am on Jedi mind trick touchwiz Rom and was hoping it to increase battery life over aosp. I'm not seeing much improvement though.
The problem is that I am only on mobile network at work (no WiFi), and when I use the phone for maybe 1.5 hours in total, time to time, just browsing or messaging, the battery is down to maybe around 30 percent and the phone is very hot. The signal is decent (not good at some parts of the building) at the place. This is with Anker 2200mah Battery btw.
However, when I'm home and I use WiFi, and even with 1850mah stock battery, after browsing, paying games, messaging for about 2hours, my battery is at 57%.
I know that mobile network is supposed to drain battery but is there any app or tweak that can help to let me get some more juice out of the battery while on mobile network? I'm *not* talking about when the phone is on stand by. I already have 2X battery, but of course this app doesn't help when using the phone.
Sorry for the long post and please help me
Thanks!
Sent from my SGH-T989 using Tapatalk 2
I love this device, but the battery drain is much worse after the update IMHO. I have reset the phone quite a few times because of it.
Following my last reset to faftory, I accidentally did NOT set brightness to auto and have had it around 50%. Low and behold, my battery life has shot up from 10 hours to 18 hours. I could be wrong and will report back in a mother few days as to whether this has done it.
Of course , I am still suffering from the GPS issue, but the battery life was going to make me switch to a g4. Maybe now i wont.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
All the Samsung phones I've had (the note 4 is 4th) have all had horible battery drain if I used auto-brightness. On the Note 4, I get almost 8 hours of screen-on time on a charge that lasts almost a day and a half.
I thought it was common knowledge to turn off auto-brightness to save battery.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Clearly not. ..
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
It is annoying. I will try as you suggested and will be tracking for a few days
I use auto brightness with no problems to my battery life since a factory reset after LP.. you can also disable enhanced LTE to get more life.
but yes even though I always keep it on, auto brightness doesn't have the greatest detection
all personal experience
I've always used auto brightness and on KitKat I used to always get around 6 hours of screen on time. With lollipop its between 3-4. I even tried a factory reset and it still didn't fix the issue.
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Auto brightness is going to affect any phone on any os. It's just another sensor that consumes battery. If you think about it it's always on and always monitoring lighting conditions and making calculations. So disabling it will help with battery life regardless of the device. Good rule of thumb for decent battery life is disable auto brightness, location, Bluetooth, nfc and Wi-Fi when not in use.
45ACP1911 said:
Auto brightness is going to affect any phone on any os. It's just another sensor that consumes battery. If you think about it it's always on and always monitoring lighting conditions and making calculations. So disabling it will help with battery life regardless of the device. Good rule of thumb for decent battery life is disable auto brightness, location, Bluetooth, nfc and Wi-Fi when not in use.
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Why turn WiFi off? WiFi consumes way less battery than 4G does.
heXacode said:
Why turn WiFi off? WiFi consumes way less battery than 4G does.
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When not in use
My screen is only on for an average of 1.5-2hrs a day. Most of my battery drain occurs during sleep. Phone does deep sleep though, but wakes up every now and then.
I've disable everything I can (including enhanced lte), and even set up a Tasker profile that keeps Sync off at all times, but enables it for 2 mins 4x a day (24hrs).
So I'm going to ask these questions even though I'm pretty sure I already know the answers.
Will turning off auto brightness affect standby battery.
And will it make any dramatic difference during the 2 or so hours that the screen is actually on?
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Rather lose a little battery than eat up background mobile data instead of wifi though. Just my opinion.
Sent from my SAMSUNG-SM-N915A using XDA Free mobile app
spexwood said:
My screen is only on for an average of 1.5-2hrs a day. Most of my battery drain occurs during sleep. Phone does deep sleep though, but wakes up every now and then.
I've disable everything I can (including enhanced lte), and even set up a Tasker profile that keeps Sync off at all times, but enables it for 2 mins 4x a day (24hrs).
So I'm going to ask these questions even though I'm pretty sure I already know the answers.
Will turning off auto brightness affect standby battery.
And will it make any dramatic difference during the 2 or so hours that the screen is actually on?
Sent from my SAMSUNG-SM-N910A using Tapatalk
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It might be easier to help if you could share the battery stats screenshot from the settings-general option ☺.. We have no idea what you've installed or running..
nktwister said:
It might be easier to help if you could share the battery stats screenshot from the settings-general option ☺.. We have no idea what you've installed or running..
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I actually wasn't asking "what's killing my battery?"
I was basically just trying to ask if auto brightness will affect standby time or not. I was thinking the answer would be that with Auto on, it wouldn't affect standby battery at all since during standby, the screen isn't on, so the phone wouldn't be using battery to try and auto adjust itself.
But today I'm running my phone with Auto brightness off and so far I'm pleasantly surprised by the results. Though, today is my day off from work, so my phone is also getting atypical usage with it being on wifi all day and not being under fluorescent lighting and more standby than usual.
Edit: also, SOT has been so low today that it isn't even showing under the battery consumption list. So yeah, today has been very atypical. Lol.
I'm going to spend this week using my phone like normal, but having auto brightness on one day and off another. I'll report back here with what I notice, as well as some screenshots of battery usage.
I'm curious to see if there really is any change in battery consumption.
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I don't think it's the sensor, it's how high the brightness goes. The sensor is just a small lumen counter. However, Samsung cranks the brightness really high to keep the user experience positive. It's Samsung's brightness that kills the battery, and has nothing to do with Lollipop or KK.
okay, i did something else and actually help me a lot:
Settings--->General--->Security--->Trust Agents--->Smart Lock (Goole)--->Off
And did what you guys talking about the brigthness and now i have 21 hours left!
You can bring any Samsung device to any BestBuy and they can help out by reflashing the phone and calibrating the battery. They also can help with any consumer, enterprise, and prosumer related problems. Most techs are awesome but there is the off chance you may get a bad one though. They are there to troubleshoot issues and work directly for Samsung and not best buy so they are supposed to know the phone and tablets by heart.
ekerbuddyeker said:
I love this device, but the battery drain is much worse after the update IMHO. I have reset the phone quite a few times because of it.
Following my last reset to faftory, I accidentally did NOT set brightness to auto and have had it around 50%. Low and behold, my battery life has shot up from 10 hours to 18 hours. I could be wrong and will report back in a mother few days as to whether this has done it.
Of course , I am still suffering from the GPS issue, but the battery life was going to make me switch to a g4. Maybe now i wont.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
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What GPS issue?