Related
I have heard good things about juice defender, but i have a basic question. It says it turns of data during times, or when certain apps are running, etc...
Now, is the data only internet connection? Or will it interfere with my ability to get texts as well, because that would be a deal break for me.
Data is only the internet. The only things that you'll be missing out on are e-mails, which will still come through based on your schedule set up and when you have your screen on.
Sent from my SPH-D700 using XDA App
Heard so much about this app, tried it and took me only a few hours to remove it. When screen is off, it kills data, so basically apps like K-9 Mail that push my IMAP-idle email accounts and poll other accounts are basically impotent.
Plus the interface is confusing with a myriad of settings and no real hold on what settings stick or what not to set. I understand the concept of the app but it's not for me. With stock rom and mediahub-DRM-whatever-process killed off manually, i get by a work day with 50% left over on the train/bus-ride home, more than enough to do stuff before i get home.
I dave been using juicedefender for 3 weeks and it has maximized my batt an overall of 1.4x. The interface is confusing for those that don't spend time and learn it....its granular.
Sent from my SPH-D700 using XDA App
U can set it to fcetch data on certain time intervals and u can get emails like that
Sent from my Epic 4G
I'm totally happy with it - I'm getting a rating of around 1.7x to 1.9x I know I can easily go a full day on one charge. The default setting of enabling data every 15 minutes is enough for me - I don't expect to get emails that are time sensitive to the point where a maximum of 15 minute delay would be detrimental. And I play with my phone a lot so I'm usually waking it up to respond to texts and it reenables data then anyway.
edit: I'm not using any battery tweaks or DRM disabling stuff. I'm stock except for rooting.
You guys and this juice defender. you use more battery with this because it is always running in the background. i get 45 hours without juice defender or a task killer. 1 day of battery pleasssseee i could get 2 if it was left in standby or more. no drm removed. root, cwm, galaxy rom and kernel di18 & blue minimalism
Oh well f me... If you're getting 45 hours that must mean I can get 45 hours because, you know, our geographic locations have the exact same coverage and we have the exact same phone usage patterns. Wow I feel like such an idiot. Thank you. Thank you for showing me that juice defender, instead of increasing my battery life by a good 6-8 hours, is actually killing it by 21 hours...
Sent from my SPH-D700 using XDA App
Actually I am second guessing it too. Sure it off for a few days...
Sent from my SPH-D700 using XDA App
guruleenyc said:
Actually I am second guessing it too. Sure it off for a few days...
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
That's fine - always be skeptical especially when an update comes out to improve performance. I'm about to test the new kernel without this to see if it's worth it. But I know that keeping data off on my Hero tripled the battery life and since having this phone it's definitely increased it. But you can't tell me that I'm losing 21 hours of battery life by using it - and definitely don't try to make me feel like an idiot for using it either.
shinma6980 said:
That's fine - always be skeptical especially when an update comes out to improve performance. I'm about to test the new kernel without this to see if it's worth it. But I know that keeping data off on my Hero tripled the battery life and since having this phone it's definitely increased it. But you can't tell me that I'm losing 21 hours of battery life by using it - and definitely don't try to make me feel like an idiot for using it either.
Click to expand...
Click to collapse
Im sure its not killing you by 21 hours. prolly your STOCK sync settings though. i only turn it on for a minute or two 3x a day. but go with out it i bet its prolly like 8 hours. think about it when your screen is off it is running. well that is another process that is draining battery unneccessarily. My entire phone is set up like on demand it does what i want it to when i want it to not when it wants too and all of this is acheived with stock settings and checking every app for update frequency settings. I use my phone a lot so i need it to be there.
jbadboy2007 said:
Im sure its not killing you by 21 hours. prolly your STOCK sync settings though. i only turn it on for a minute or two 3x a day. but go with out it i bet its prolly like 8 hours. think about it when your screen is off it is running. well that is another process that is draining battery unneccessarily. My entire phone is set up like on demand it does what i want it to when i want it to not when it wants too and all of this is acheived with stock settings and checking every app for update frequency settings. I use my phone a lot so i need it to be there.
Click to expand...
Click to collapse
So for argument's sake, and because I wanted an actual test, I installed your setup based on you're post earlier, andromeda rom, no juice, etc. gmail and facebook sync off. I even went in 4 times throughout the day to turn off running services. I got 11 hours and that was with charging while I was in a vehicle. So I would say about 9 to 10 hours really. TWS was only at 16%. Display was the biggest battery drain at 82%.
So now that I've done this, I can say without a doubt, for me personally, juice defender is really extending my battery life. While running juice defender, I take my phone off the charger at 6am typically and when I go to bed at midnight I still have over 20%. And if I don't plug my phone in, I can wake up at 6am the next day and the phone is still on.
You have a setup that works for you, and I have a setup that works for me. In my setup, juice defender gets me through a 24 hour period without charging. Now that I've got the andromeda rom and kernel, I'm going to test battery life with juice.
Sent from my SPH-D700 using XDA App
45 hours is meaningless when you just let the phone sit in standby the entire time. That's like the car commercials that list higher mpg than they get in the real world.
Sent from my SPH-D700 using XDA App
I have juice defender installed only for it's two toggle widgets. With defender disabled it doesn't run in background, I take advantage of the data toggle widget and I've seen it save as high as 5x's life.
I just switched from the G2, and I don't seem to be getting as good of a battery life. I just went down from 50 percent to 4 percent in 3 hours. Is this normal?
I don't think my phone is sleeping when the screen off. I'm kind of new to android, so excuse me asking, but how do you check if you phone is not sleeping and draining battery while idle? Is there an application or something to check?
One more thing, I just got the new update yesterday. I heard that it's not good to use a task killer, but I'm now using the built in task manager to close apps before I lock my phone seems to be helping with battery life. What are you opinions on this?
Check the battery thread, life seems to vary along among the Vibrants. A lot are reporting 11-15 hours of use before needing a charge.
I read that it's good to put Wifi on never sleep (if you're on Wifi) and use a black wallpaper
Interesting, how do I go about changing the wifi to never sleep? I can't find it in the settings!
Drm running. Go2 apps running- Apps & stop it
Vibrant + xda app
JJG2 said:
Interesting, how do I go about changing the wifi to never sleep? I can't find it in the settings!
Click to expand...
Click to collapse
It is hidden pretty well. Haha. Menu > settings > wireless and network > wifi settings > menu key > advanced > sleep policy
I would change it to never sleep when plugged in. not just never sleep ever.
Sent from my SGH-T959
Gigamaster89 said:
I read that it's good to put Wifi on never sleep (if you're on Wifi) and use a black wallpaper
Click to expand...
Click to collapse
If you change WiFi to never sleep, it eats battery like crazy (at least for me, I'm bought with no data, and could barely last a day from when I woke up to going to sleep). With WiFi art to never sleep when charging, I only drain around 40% in an awake day (from when wake up to going to sleep).
Also, when I set WiFi to never sleep, my cell standby usage skyrockets.
Sent from my SGH-T959 using XDA App
Extend battery life
Couple of things I have noticed with this phone
1. Get an app Task manager or similar type apps. There are a bunch of them in the store and here. This will allow you at one click to see what is on in programs and better manage that.
2. Go to the Development section here and read the Bionix 1.9 Thread. It explains how to recondition the battery. Even if your battery is new it is good information understanding how the phone views the battery.
3. If I am out of range or do not need, I stop the wifi and bluetooth. In the menu you can set the settings alot of ways, so you just have to experiment on this. (In home screen, hit lower left button and go to settings)
4. I use my email and phone ALL day (min 10hrs) and typically, I get 15-17 hr of use before it hits 10%
5. Finally, once you are comfortable with the phone, you can load a custom ROM from the Development section. The developers here are very through and Do squeeze the most out of the phone.
Good luck and you will love the phone as I do.
oka1 said:
Couple of things I have noticed with this phone
1. Get an app Task manager or similar type apps. There are a bunch of them in the store and here. This will allow you at one click to see what is on in programs and better manage that.
2. Go to the Development section here and read the Bionix 1.9 Thread. It explains how to recondition the battery. Even if your battery is new it is good information understanding how the phone views the battery.
3. If I am out of range or do not need, I stop the wifi and bluetooth. In the menu you can set the settings alot of ways, so you just have to experiment on this. (In home screen, hit lower left button and go to settings)
4. I use my email and phone ALL day (min 10hrs) and typically, I get 15-17 hr of use before it hits 10%
5. Finally, once you are comfortable with the phone, you can load a custom ROM from the Development section. The developers here are very through and Do squeeze the most out of the phone.
Good luck and you will love the phone as I do.
Click to expand...
Click to collapse
1 - terrible advice - esp with JI6 having one built in (long press home).
2 - This is also in the General sticky
5 - try bionix 1.9.0 (or 1 if you want alt lock screens) and try JACs oc/uv - great battery life so far.
On average use I get close to 24 hours out of a charge using mostly WiFi and enabling no-sleep option, running Bionix 1.9.1 with stock kernel with JI6 modem. I'm also running LauncherPro Plus with facebook widget set to auto-refresh every 5 minutes, the most frequent setting for Google sync, and NoLED notification. I think that is very reasonable.
p.s. I do not use task manager since the operating system is supposed to manage the apps on its own.
oka1 said:
...3. If I am out of range or do not need, I stop the wifi...
Click to expand...
Click to collapse
I use an app from the market called Y5 (free) to automatically shut down wifi if I'm in an area without it and back on if I'm in an area with it.
Works well for me.
My vibrant is less 23% after being off the charger for 4 hrs. One of those hours was me driving without using it.
Something is wrong. Dunno if it's the update, but something is lilling it FAST - wifi ang gps off the entire time...
Sent from my SGH-T959 using XDA App
I use the living hell out of my Vibrant, and usually it lasts for about 4-5 hours. This being during playing games with brightness maxed, or streaming music over 3G and/or Wi-fi.
If I have a day where I am not doing the above, and just using my phone for emial and the facebook and gmail synching, I easily get over 10 hours before I hit 20%.
All in all I am quite happy with it's battery life. I have just learned to leave my phone on the charger till full charge after streaming music drains it to <20%.
I really should put MP3's on it and test how much that drains the battery compared to streaming.
Either way, I get better performance on battery and memory management then my old (work supplied) BB Bold.
My G2 definitely has more battery life than my Vibrant. That said, once you apply the above mentioned tweaks and especially with JAC's OC/UV kernel, and setcpu set at 200-1000 at conservative, the Vibrant battery life improves quite a bit. Still, its not as good as my G2. But not that bad either..
Keep in mind that the G2 doesn't have to power a billboard sized SAMOLED screen either.
Other than that flash on of Sombionix's ROMs with either of the new kernels and then recondition.
I get pretty good battery life because I don't have 3G in my area so I keep it forced to edge and I don't use bluetooth ever and wifi stays off unless i need it.
Sent from my SGH-T959 using XDA App
N8ter said:
My vibrant is less 23% after being off the charger for 4 hrs. One of those hours was me driving without using it.
Something is wrong. Dunno if it's the update, but something is lilling it FAST - wifi ang gps off the entire time...
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Ditto!
Fully charged on the way to work. On the charger less than 4 hours later with moderate use. No better after update. Was using a task killer with minimal improvement. Love the Vibrant but despise it's battery life.
Something is wrong. I just went 26 hours down to 19% before charging
Sent from my SGH-T959 using XDA App
People, recondition the battery. It's easy.
Charge it to 100%, keep it plugged in and reboot to recovery, clear the battery stats, drain it all the way, then charge it back to 100% again.
You can start in the morning before work/school and finish at the end of the day. I've never had an issue with battery life on this phone. I can play 6 continuous hours of video/games on this thing and still have battery left.
Sent from my SGH-T959 using XDA App
Also the g2 has froyo witch uses less battery then 2.1
Sent from my SGH-T959 using XDA App
try juice defender it works great for me...
Can't get past "Reinstall Packages"
I am trying to recalibrate my battery after the OTA destroyed it, but every time I select to reinstall packages so I can get to the battery section, it looks for Update.zip on my sdcard, and it wont let me get any further. All I can do is reboot the phone.... any suggestions?
So I thought of making a thread on your experiences with the battery consumption ratio depending on use etc. My main reason of doing this is because I suspect my dock has a bad battery and I would like to see you guys experience with your tablet/dock combo.
Noticed much difference between power saving, balanced and performance mode?
Processor wise I know each has a rating of 1ghz,1.1ghz and 1.2ghz. I dont see how this would make a big impact in battery life. Now I dont know if these also regulate anything else than the cpu frequency as to make it a noticeable thing.
Whats's the ratio of your Tablet/dock charging? ( what I mean is once your tablet reaches 70% and dock kicks in to charge how much battery would it be left on the dock after tablet reaches 90% wich is point where dock stops charging..
If I leave it charging without using it my dock is left with about 55% battery.
Last night I left the tablet at 52% and the dock fully charged so I left the tablet in sleep mode and charging with the dock. when I come to check on it battery was at 90% dock at 25% . I'm curious if the scaling is alright or am I having a performance loss.
I noticed the dock discharging while it is not supplying battery to the table ( By the time my tablet reaches 70% for the dock to kick in to charge the dock has gone down to 98%).
The biggest power drain is definitely screen brightness though this IPS display seems really nice indoors no more than 20% brightness seems to be needed.
I would also like it if we could post your advice for a better battery life on these wonderful tablets to later on make a recollection of all and post them on 2nd Post
I'll try to keep up and be adding em there.
Well this is what I got in my head so far if your willing to post any other experiences or advice I would gladly appreciate it.
I'm somewhat of a complete noob, I'm here to learn and share my experience with other users.
Battery life tips.
1. If distance is not an issue use bluetooth tethering instead of wifi tethering. It consumes less battery on both devices.
2.Try using the brightness level you need not max it out like most people do.
3.If your an active user on wi-fi, turn on setting for wifi not go to sleep. Every time tablet goes to sleep mode it would be disabling and enabling Wi-fi wich in many devices this has proven to consume more battery than keeping an active connection.
This list will keep growing as more tips are posted.
This is a well timed thread, since I have been having battery issues and the tablet on its own is not the problem. For whatever reason, the dock and tablet together equals massive battery drain in sleep mode, where the tablet on its own only uses one percentage point over night. The majority of both batteries are drained if docked in sleep mode.
I charged the dock to full on its own and unplugged it and will check this evening to see status.
Tablet on own =
Tablet docked = :silly:
Well when I am not using my tablet for sleeping or working I usually just shut it down. Doesn't make sense to me to just always have it on. I'm usually away from it for long periods of time and it doesn't take long to boot up. Plus if I go to use it later in the day or a few days later I'm not looking for my charger because I fully charged it before shutting it down. I keep a laptop/computer mentality with it where if I'm not using it turn it off.
Sent from my DROID3 using xda premium
rushless said:
This is a well timed thread, since I have been having battery issues and the tablet on its own is not the problem. For whatever reason, the dock and tablet together equals massive battery drain in sleep mode, where the tablet on its own only uses one percentage point over night. The majority of both batteries are drained if docked in sleep mode.
I charged the dock to full on its own and unplugged it and will check this evening to see status.
Tablet on own =
Tablet docked = :silly:
Click to expand...
Click to collapse
Well as I said before on ur thread I would replace it in ur case though a corrupted firmware could cause that. On my g2x a bad Install once drained my battery like crazy so might want to try that. I think u need to unlock though
Sent from my LG-P999 using xda premium
I do not think there is any firmware in the dock itself. I think it is a pure slave device that is controlled by the tablet. The tablet on own does not have a drain issue, but when docked they do together.
On my second dock now with same result.
The tablet and dock together ironically seems to have the same battery life in sleep mode as my Q2670 Lenovo 14" gaming laptop = bad I was hoping the dock and tablet combo would be just as efficient as an Android tablet on own and avoid having to cold start when using it (that seems so Windows to me).
Nschneider7 said:
Well when I am not using my tablet for sleeping or working I usually just shut it down. Doesn't make sense to me to just always have it on. I'm usually away from it for long periods of time and it doesn't take long to boot up. Plus if I go to use it later in the day or a few days later I'm not looking for my charger because I fully charged it before shutting it down. I keep a laptop/computer mentality with it where if I'm not using it turn it off.
Sent from my DROID3 using xda premium
Click to expand...
Click to collapse
Well in my case I am replacing a netbook.
I use it for a lot of things like Torrenting, college notebook,games, media,internet browsing etc. I give it its full use.
Asus already knows about this problems. Its due to bad software in the keyboard dock (yes there is software for it/ only Asus can access it.) Its actually B.S. the only fix is to send dock to Asus and pay shipping urself. And they'll fix and send back. Prob about a month later
Or you can use the tweeked build.prob like I did. Shuck will allow deep sleep while docked.
Deep sleep = no battory drain
Just be careful with changing build.prob
read 5 times fully can't go wrong lol
trevor7428 said:
Asus already knows about this problems. Its due to bad software in the keyboard dock (yes there is software for it/ only Asus can access it.) Its actually B.S. the only fix is to send dock to Asus and pay shipping urself. And they'll fix and send back. Prob about a month later
Or you can use the tweeked build.prob like I did. Shuck will allow deep sleep while docked.
Deep sleep = no battory drain
Just be careful with changing build.prob
read 5 times fully can't go wrong lol
Click to expand...
Click to collapse
Are there docks that do not have the problem that can be identified? This seems a silly miss by Asus.
Both docks I got from two retailers have the issue.
Also, do you need root? Any guide to fixing and links documenting the problem are appreciated.
rushless said:
Are there docks that do not have the problem that can be identified? This seems a silly miss by Asus.
Both docks I got from two retailers have the issue.
Also, do you need root? Any guide to fixing and links documenting the problem are appreciated.
Click to expand...
Click to collapse
Ive also tryed returning dock for a new one. No luck
I'm not sure but I think the docks only work as suppossed to on. 17 firmware. That's my best guess. Just look under development section. Only post by seanzscreams can't miss it for tweaked build prop.
Believe u need root. Or process alot easier if you have it. Just be careful if you don't follow instructions exactly can brick. But if you do everything which isn't much and not hard at all even for a noob
trevor7428 said:
Ive also tryed returning dock for a new one. No luck
I'm not sure but I think the docks only work as suppossed to on. 17 firmware. That's my best guess. Just look under development section. Only post by seanzscreams can't miss it for tweaked build prop.
Believe u need root. Or process alot easier if you have it. Just be careful if you don't follow instructions exactly can brick. But if you do everything which isn't much and not hard at all even for a noob
Click to expand...
Click to collapse
My dock seems too be working just fine and if this where such a common problem it would be everywhere.... im half sure the problem is ur guys tablet as it seems tablet controls functions on dock...
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
Separated, my tablet consumes 1% in ten hours and the dock about the same when in sleep mode. When together over the same time, they collectively drain almost 70%. The dock is dead and the tablet with the rest.
rushless said:
Separated, my tablet consumes 1% in ten hours and the dock about the same when in sleep mode. When together over the same time, they collectively drain almost 70%. The dock is dead and the tablet with the rest.
Click to expand...
Click to collapse
Stop chasing cats replace the damn thing already lol
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD
Rushless is right... I also see more drain now with new firmware, when the tablet is docked.... Seems like a bug
Sent from my HTC HD2 with WP7.5/android miui using tapatalk
deathskater said:
Stop chasing cats replace the damn thing already lol
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD
Click to expand...
Click to collapse
No kitties here. As stated, they both work fine on their own and have had two docks. Testing another 300 yielded the same result.
The problem is the two pieces together. I think the sleep mode is borked when docked and bleeding power at a non user level.
rushless said:
No kitties here. As stated, they both work fine on their own and have had two docks. Testing another 300 yielded the same result.
The problem is the two pieces together. I think the sleep mode is borked when docked and bleeding power at a non user level.
Click to expand...
Click to collapse
Well i dont see this issue anywhere else seems like ur cursed or something
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
So... back to battery saving tips.
I get scary long battery life by just reducing screen brightness. Would like to mess with build.prop but haven't yet. I know there is replace n go's out there but I want to find out which settings do what specifically. Still looking for more information on the subject.
moseng said:
So... back to battery saving tips.
I get scary long battery life by just reducing screen brightness. Would like to mess with build.prop but haven't yet. I know there is replace n go's out there but I want to find out which settings do what specifically. Still looking for more information on the subject.
Click to expand...
Click to collapse
I give this about 8-9 hours daily on 1 charge of tab\ dock.
Sent from my ASUS Transformer Pad TF300T using XDA Premium HD app
My battery life:
Docked and using fairly heavy- about ten hours
Docked and in sleep mode- Both batteries dead in 14 hours
Undocked and using fairly heavy about seven hours
Undocked for over 12 hours tablet = 98% Another time was 99%
Undocked, the dock went 24 hours = "100"%
Ironically, my problem is with the device docked in sleep mode. Two docks, two tablets- same issue. No info showing an app or media task causing it, so lower level bios issue. Both tabs newest firmware, no clue what the docks are/were. Have one each now.
Those having problems, check "Settings/Asus Customised Setting/Mobile Dock Battery Saving Mode"
Enable it and see if it matters
Sent from my ASUS Transformer Pad TF300T using XDA
Hello everyone, i purchased my Nexus 7 and it arrived in the mail 3 days ago. And as with every other Android device ive ever owned, the batter is absolutely terrible. I get about 2hrs on screen time when browing the web and maybe playing an occasional game. Does anyone have any idea whats going on? Or have any way to help? Thanks so much
That is pretty bad. Try a factory reset. Might be something you installed.
I'd hate to do a factory reset cause I just barely got it set up but..I'll try it anyway tonight
Sent from my SGH-T999 using xda premium
Scoutamis said:
I'd hate to do a factory reset cause I just barely got it set up but..I'll try it anyway tonight
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Doing a factory reset before installing anything is becoming the gold standard.
Hope it helps you.
I get between 7-9 hours of active use. Sounds like some process is running amok on yours. I didn't factory reset when I bought it either....though I have rooted it since then, but battery life is about the same pre and post root.
You might want to consider a program to monitor battery use to see what's eating it up. Maybe do that before you factory reset it so you don't install the same thing again.
ScandaLeX said:
Doing a factory reset before installing anything is becoming the gold standard.
Hope it helps you.
Click to expand...
Click to collapse
Really? Like as soon as you set up the device, you are suppose to factory reset it? And since im facotry resetting it 3 days into having it, do i have to calibrate the battery again?
ExploreMN said:
I get between 7-9 hours of active use. Sounds like some process is running amok on yours. I didn't factory reset when I bought it either....though I have rooted it since then, but battery life is about the same pre and post root.
You might want to consider a program to monitor battery use to see what's eating it up. Maybe do that before you factory reset it so you don't install the same thing again.
Click to expand...
Click to collapse
Do you have any battery monitoring apps in mind? I would love to see what is eating up my battery
Scoutamis said:
Do you have any battery monitoring apps in mind? I would love to see what is eating up my battery
Click to expand...
Click to collapse
System panel is a good app to find what's using your CPU and better batterystats can help find what's keeping your phone from going to deep sleep. An easy way to see if this is the case is go into battery setting and select the first option(history details). Compare the Awake bar with the screen on bar. Those two should be nearly identical if not then you have a rogue app.
Scoutamis said:
Do you have any battery monitoring apps in mind? I would love to see what is eating up my battery
Click to expand...
Click to collapse
The one I've seen mentioned several times in here is BetterBatteryStats. I just don't want to drop $3.00 on something I don't need. It might help your issue though.
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
neotekz said:
System panel is a good app to find what's using your CPU and better batterystats can help find what's keeping your phone from going to deep sleep. An easy way to see if this is the case is go into battery setting and select the first option(history details). Compare the Awake bar with the screen on bar. Those two should be nearly identical if not then you have a rogue app.
Click to expand...
Click to collapse
Alright ill try system panel, and i looked at the battery setting and awake and screen on are almost exactly the same.
ExploreMN said:
The one I've seen mentioned several times in here is BetterBatteryStats. I just don't want to drop $3.00 on something I don't need. It might help your issue though.
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats
Click to expand...
Click to collapse
Well then, here you go:
http://forum.xda-developers.com/showthread.php?t=1179809
Scoutamis said:
Alright ill try system panel, and i looked at the battery setting and awake and screen on are almost exactly the same.
Click to expand...
Click to collapse
have you flashed any kernels or roms? sometimes this makes the tablet report the wrong battery stats for a bit.
did you run the battery down until it turns off and then give it a full charge? sometimes you have more juice than what is being reported. ive been stuck at 1-2% for over an hour before. Most likely its a rogue app though, system panel and better batterystats should find out what app it is. if they dont then it could be that you have a defective battery...
Been on mine continuously for 3 hrs 18 mins and at 60%. Excellent if you ask me. Next step up in battery life would be Transformer series with dock.
Scoutamis said:
Hello everyone, i purchased my Nexus 7 and it arrived in the mail 3 days ago. And as with every other Android device ive ever owned, the batter is absolutely terrible. I get about 2hrs on screen time when browing the web and maybe playing an occasional game. Does anyone have any idea whats going on? Or have any way to help? Thanks so much
Click to expand...
Click to collapse
Quite the opposite for me; unlike every other Android device I've had (Nexus One, GS2) the battery life is excellent. I watched 720p mkv video on the train yesterday for a good 3 hours, and still had ~70% by the time I got home, from a full charge.
The battery life is excellent, as far as I'm concerned.
Scoutamis said:
Really? Like as soon as you set up the device, you are suppose to factory reset it? And since im facotry resetting it 3 days into having it, do i have to calibrate the battery again?
Click to expand...
Click to collapse
Don't think you needed to calibrate the battery to begin with. I usually get fine battery life without doing anything special.
Something must be causing the poor battery on your Nexus, Yesterday after my N7 was fully charged, I watched the movie Thor for 1hr and 54 minutes n and my battery only dropped to 83%.
I'm at 16 hours and 52 minutes with 3 hours and 44 minutes of on screen time, the battery is at 51%
Sent from my Nexus 7 using Tapatalk 2
neotekz said:
have you flashed any kernels or roms? sometimes this makes the tablet report the wrong battery stats for a bit.
did you run the battery down until it turns off and then give it a full charge? sometimes you have more juice than what is being reported. ive been stuck at 1-2% for over an hour before. Most likely its a rogue app though, system panel and better batterystats should find out what app it is. if they dont then it could be that you have a defective battery...
Click to expand...
Click to collapse
My N7 is completely stock and has never been rooted. I also did do a couple charge cycles which didn't seem to help much. And better batterystats has AudioOut_2 at 38% (while I'm playing music) but other than that it doesn't seem to be a rogue app
Sent from my Nexus 7 using XDA Premium HD app
Download CPU spy from the market to see if the tablet is sleeping properly, and what frequency its constantly running at
Scoutamis said:
My N7 is completely stock and has never been rooted. I also did do a couple charge cycles which didn't seem to help much. And better batterystats has AudioOut_2 at 38% (while I'm playing music) but other than that it doesn't seem to be a rogue app
Sent from my Nexus 7 using XDA Premium HD app
Click to expand...
Click to collapse
Unless you listen to music for over 5 hours or streaming the songs it shouldnt use that much battery. If you can't find a wakelock with better battery stats then it might just be a bad unit.
Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
If your saying you left the screen on over night, meaning the phone never went into deep sleep.. If you slept for let's say 6 hours and the phones screen was on for that whole time it's normal that it went down to sixty percent battery.
Maybe I'm understanding your post wrong? Btw I cannot see the picture you posted.
Sent from my SGH-T999 using xda app-developers app
Turn off mobile data and lower the screen brightness to 0 during the day. Also disable WiFi when you're sleeping. I also make sure all apps are closed using the app manager button on the far right.
Mine's been fine following this logic.
Oh sorry, I should meant sleeping overnight, whilst I slept cosily in my bed.
I'll reattach the image in a second
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
atw1927 said:
Ah, you won't be able to see any links till I've gone past 10 posts. Back in a bit then, ha.
Click to expand...
Click to collapse
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Crisisx1 said:
lol I see it now.. try performing a reset, android shouldn't be that high.. are you rooted? custom rom/kernel?
Click to expand...
Click to collapse
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
joshnichols189 said:
This is NOT the answer. His battery in the image has dropped 7%. If he hasn't used the screen much it is perfectly understandable that screen might not be a large percentage of that 7%. As he uses the phone more screen will use a larger percentage of his battery and Android OS will use less.
If he gets to the point where the screen is on for an hour or two and the percentages are still like this then yes there is a problem.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
atw1927 said:
Hi there; this is my first post so please go easy on me.
Bought a Nexus 4 which is my first Android device, but the battery life is bugging the hell out of me. Surely the screen should always be at the top, right? I left it to sleep overnight on a full charge to find that it had shot down to 60% when I woke up at 7 this morning.
I haven't rooted or flashed or anything like that, because as I said, I'm an Android virgin. I have location settings off, only Gmail syncing and the usual push notifications here and there. Nothing too fancy or strenuous.
Any help on how I can go around fixing this? I'm a little afraid to rooting/flashing/ROMs etc, because I've no clue what works best.
Cheers!
Click to expand...
Click to collapse
Actually No the "Screen" should not always be at the top of the stat list. If you use the phone more than it idles, then yes... but if you are like me, mine says "Phone Idle: 20%" (which is on top) and "Screen" is 4th on the list with 12% (Wi-Fi and Cell standby above it) [this is my personal phone, and I mostly use my work phone. hence the high Idle & standby]
I was having an issue with my phone running out of battery, with very little usage from it. I mean very little, I might make 2 calls from it each day, and respond to an email now and then. I found that an App was preventing my Screen from going into "Deep Sleep" or even "Sleeping" possibly. So I uninstalled all apps (well I only had like 4 additional apps installed), except for 2 that I need (Google Voice & Drive). Powered off the phone, charged it fully, then powered back on. Its been running on the same charge for 24+hrs now and reads 68% battery remaining.
So check the apps you have installed, some use background data, and might be causing problems...
Crisisx1 said:
My android system has never been that high, regardless if I used the phone for 10 minutes or 10 seconds , or not at all.
Click to expand...
Click to collapse
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
What else would you like to know?
atw1927 said:
What else would you like to know?
Click to expand...
Click to collapse
A longer battery graph would help a lot. If yuppy want top search XDA there is a free app called better battery stats that will help you diagnose if something is running in the background eating battery or even if your phone I'd properly entering deep sleep.
Sent from my Nexus 4 using Tapatalk 2
Better Battery stats and battery screenshots here
atw1927 said:
Better Battery stats and battery screenshots here
Click to expand...
Click to collapse
See now it is much easier to see that you actually do have a problem and what it is. You have the wakelock problem as you can see from Better Battery Stats which falls under Android OS on the other screen. It also appears that you have somewhat weak signal which could cause the wakelock to drain battery even more. There's not much you can do about that wake lock, some kernels have patches for it but those have their own issues as well.
Sent from my Nexus 4 using Tapatalk 2
Could I just install any kernel on stock android and be OK with it? As I've said I've no idea what's best for me; just something nice and clean that doesn't have issues like this. I live onsite where I work so my WiFi is pretty much on all the time if that helps in anyway whatsoever
I'm gonna let it run down completely tonight and charge it, but I don't expect it to help much.
joshnichols189 said:
And your phone is the definitive guide for what Android OS usage is? Maybe his phone woke up those services for a period of time longer than normal.
The answer of "lol looks wrong root and install kernel" is terrible advice when so little information is given.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
I never told him to install a kernel. The advice I gave is to do a reset then I asked if he was rooted or running a custom rom or kernel because that might of been the problem.
Sent from my SGH-T999 using xda app-developers app
Bump
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
atw1927 said:
Fully charged overnight, battery still sinking like a ship. 45 minutes and I'm already down to 94% already!
Idiot question; will installing a kernel just solve this? For now as a new guy I'd like to keep it as stock as possible before fiddling with it.
Click to expand...
Click to collapse
The battery on the n4 seems horrible.
I'm completely stock I just got my phone yesterday, I charged it to 100% now its at 64% battery with only 47 minutes of screen on time.
on the s3 I would be around 83% with 47 minutes of screen on time.
I'm gonna unlock the boot loader and root soon and try Franco kernel I've been reading good things about it.
Sent from my Nexus 4 using xda app-developers app
The battery life on the stock kernel isn't great because the CPU management isn't optimized well. It ramps up the CPU (frequency, number of active cores...) very easily and keeps it there long, which removes the occasional lag but sucks more battery. Flashing a more battery friendly kernel would definitely help you if that is the root of your battery issues and not a badly coded app.
Franco's kernel is a very popular one, and very battery friendly compared to stock (and that doesn't mean you lose performance). It is the one I'm currently using. Most people report of screen on times of 4 or 5 hours. With not so heavy usage and wifi (not 3g) I can also pass 5 hrs.
To install a kernel you need to unlock your boot loader and install a custom recovery. No need to root, but.. why not since you're at it
You can try different kernels with the stock ROM. You don't necessarily need a custom ROM. Just be careful to read the dev's OP and instructions, and definitely not to flash a kernel for another device.
Also another thing that reduces battery is your mobile data, if there are a lot of programs that sync on the background. You can use a program that turns off your mobile data when your screen is off and switch it back on just for a sync every xx minutes. Juice Defender is such app, though I like to use Tasker for that. If you use Tasker and are interested in that project, ask or send me a pm. It works great.