I'm running into a strange issue where my tablet will be running fine then all the sudden battery life will start to suck and when looking at my batter usage it shows "Android OS" will show something like 70% of usage where normally display and wifi are well above that on the list.
I don't know what Android OS is so I'm looking for an app to give me a good granular view of what is running and how much of the CPU it is using. A battery usage app that gives a more complete list of battery usage by app would also be helpful. Spare parts has this functionality but it force closes when I try to use it.
Anyone else having this drain or have a good app for tracking app/battery usage?
I've used BetterBatteryStats from the Market ( https://market.android.com/details?id=com.asksven.betterbatterystats ) Though not free it helped me find the app that was eating my battery. My phone would drop to 30-40% in a day with little or no use. Now with the same use it at 70-80% so I can go 2 days easy unless I use the phone alot.
According to the reviews for this app is is apparently available free for XDA members. Any idea where to find this (or another app that the review might be referring to)?
by Karam– August 24, 2011Spam
"Don't bother yourself. An upgraded free app is at xda site. Developer answers vaguely. Also it has bugs."
I use SystemPanel. With the long battery life of these tablets (and the fact that the screen chews through the battery faster than anything else for me) I keep it monitoring at all times and every now and then check up on what's taking the battery.
I can't remember if I purchased this or not, I don't believe I did but could be wrong. I am pretty sure there's a free version of it.
Battery monitor widget all the way
Related
is there a app that tells you what app is using/has used what % of the bettery?
similar to the Battery History built in when pressing *#*#4636#*#*
an example like...
Wifi: 15%
Screen:15%
Android: 50%
Slacker Radio: 10%
Weather Bug Elite: 10%
i dunno something like that im just wondering if there is any apps like that because the market apps mostly all just give me overall battery %
I've been searching for some thing like this for a LONG time. I'm pretty sure it's impossible to tell battery usage by app aside from the built-in battery history.
It's too bad because on Sense ROMs, the built-in history app lumps like 20 apps into the single category "Android System", which makes it totally useless for seeing what takes up battery.
aww well nice to know im not the only one who wants and looked for this and i agree with you about the built in histroy wish someone would make a better one.
SystemPanel shows you just how many seconds each app have been using the cpu, I like that a lot.
ill take a look at it thanks!
So I've been testing out this app for a while. I have Ultimate and I've been trying many different things. So far the conclusion I've came to is that this app does NOT save battery, at least for my usage.
I've done my testing using the 'balanced' state. I think it's because the app spends more battery turning on/off data and doing all of its things than it saves by having data off for a while.
What results do you guys have? Have you actually noticed any improvement on battery life?
If you want to help, please use GSam Battery Monitor and take screenshots of full battery cycles - one with JD and one without it. This will help us understand if, and how much, JuiceDefender actually helps.
JuiceDefender is real and the concept of it is real as well but it hasn't been updated in a very long time and is very unlikely to work nicely with Android 4.0 and above.
It's better in the end to just turn off the things you don't use manually.
it works best if you are rooted.
John.
Tinderbox (UK) said:
it works best if you are rooted.
John.
Click to expand...
Click to collapse
I am rooted - may I ask what's the difference for JD?
In any case, I would still like to get help if people are willing to actually test this, since I've been getting reduced battery life with Balanced JD (I've started testing myself).
Basically when your rooted juice defender can change system settings, when i cannot when you are not rooted.
I use an free app called "wakelock detector" and remove or disable any apps with high wakelocks, basically they keep waking the phone up when it is asleep and using the lowest power level, like over night.
John.
Hey, My battery doesnt like being used, It kills itself, During normal use, say, just having the chat app Line, open for 20 minutes chatting away, on auto brightness, the battery often goes from 100% down to 85%.
I dont think this is normal, but correct me if i am wrong..
And I see stories of people saying 'my battery drains fast overnight!'
Well im sure that if i left mine without plugging it in overnight it would drain flat LONG before morning....
Im wondering if this could be related to RAM usage at all, Because even though im on an AOSP based rom, My ram usage is always arounf 1-1.6GB
Or if not that, What kind of things could be causing my issue ?
I tried the battery section of settings, and it usually says screen uses all the power, But sometimes, on low brightness, with 1-2 apps running (im the kind of person that closes what he doesnt need)
the battery monitor widget reports a drain of well in excess of 1300mah D:
Battery life is very important to me as i only really have a single chance per day to charge ;___;
Any advice on what I could do is appreciated c:
Im fine with disabling cores/underclocking or any other [major and efficient] battery saving tricks.
Phone info in my sig.
tl;dr: help me save battery. does ram use much power?
afaik, RAM usage isn't battery related. As usual, unused RAM = wasted RAM.
Perhaps you have insane wakelocks or apps that run in the background that automatically updates itself hourly/something. (E.g., Facebook updates itself hourly by default)
If you happen to be rooted, you should try out the apps Greenify and DS Battery Saver
Sent from my GT-I9505 using xda premium
Using Auto Brightness will cause using more battery, use BetterBatteryStats to check what's using your battery or maybe wakelocks
saywhatt said:
afaik, RAM usage isn't battery related. As usual, unused RAM = wasted RAM.
Perhaps you have insane wakelocks or apps that run in the background that automatically updates itself hourly/something. (E.g., Facebook updates itself hourly by default)
If you happen to be rooted, you should try out the apps Greenify and DS Battery Saver
Sent from my GT-I9505 using xda premium
Click to expand...
Click to collapse
Crauze said:
Using Auto Brightness will cause using more battery, use BetterBatteryStats to check what's using your battery or maybe wakelocks
Click to expand...
Click to collapse
Thanks guys! Ill check those apps out and post back with anything i find!
Edit: Okay, I tried them, Didnt like them and they messed with my push notifications :c
I also tried something I saw else where, that said to flash the chronic kernel and cap the cpu at something lower, so i have it locked at 1.2ghz...
But my battery still seems tr drain at the same speed D:
that battery stat app I cant figure out..
Hi,
after I overclocked my device and used custom ROM to reduce lag the battery was drains fast and overheat and I used the factory image(in android 4.3) to get the stock kernel and stock ROM my device not overheat anymore but still drains fast and the charger sometimes when my device is on charges slooowly and sometimes while it plugged in it don't charge it decrease 1 percent and stop charging while playing any game and the charger smell like burnt and it charge first while my device is off but that didn't happen to me before the overclock,
I want to know I there are way to increase battery life and fix the charger problem,
Thanks.
Sent from my Nexus 7 using Tapatalk HD
Any one please
Sent from my Nexus 7 using Tapatalk HD
A Few Apps For Battery Life
There are a couple things I would do, first is you need to monitor what is draining the battery. One thing to note though is your OC is obviously going to drain the battery quicker than stock and your governor setting could also affect this a lot. I am guessing your custom ROM has a non-stock kernel with it, if not I would recommend Franco's Kernel (r75 is the latest) and he even has an app that will keep you updated and flash for you (https://play.google.com/store/apps/details?id=com.franco.kernel&hl=en) there is also a free version of that. Franco's paid app has a built in power settings option that lets you adjust power usage per app that could be extremely useful in your case. However I would do some monitoring first and make sure a live wallpaper or a hardware monitor is not draining more battery than you think it is.
I've used these two apps and both do a great job of letting you know what is using the battery most during load/idle/sleep:
Better Battery Stats:
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats&hl=en
Go Power Master:
https://play.google.com/store/apps/details?id=com.gau.go.launcherex.gowidget.gopowermaster
Android Tuner (does A LOT for the price, including battery monitoring), If you are rooted this is almost a must buy:
https://play.google.com/store/apps/details?id=ccc71.at&hl=en
Also in Android Tuner and I think Better Battery Stats (I've uninstalled it since I got Android Tuner) there is an option to turn on a fast charge option. Fast Charge will decrease the time to charge the battery, however I haven't used this feature because it sounds like there must be a catch (more power to the battery quicker isn't going to be at stock spec power delivery from charger to battery). If my N7 was having trouble charging, I might consider it.
Really the first thing you need to do is install one of the monitoring apps and watch what is using your battery the most and if something is using it a lot that you didn't even realize. I was using UseMon to monitor and it was using 36% of my total battery usage, so I ditched it.
Then you have some things you can do to save your Battery
You have Juice Defender which has some great options in it if you are draining the battery too quickly:
https://play.google.com/store/apps/details?id=com.latedroid.juicedefender&hl=en
It comes in 3 versions Free, Plus and Ultimate.
One of my Favorites that saves the battery is Lux Dash:
https://play.google.com/store/apps/details?id=com.vito.lux&hl=en
There is also a free version, but this is easily worth the few bucks. It uses the camera to read the lighting of the environment you are in and based on the ratio you set, will dim or brighten your display. This method trumps any of the built in features, like NVIDIA's option.
Those two apps will help your battery a lot, especially if you also use the monitoring programs to see what is draining the battery so quickly.
You can read this article on some apps for monitoring and increasing battery life: http://reviews.cnet.com/8301-19736_...s-that-prolong-your-smartphones-battery-life/
and: http://www.talkandroid.com/guides/b...pps-for-analyzing-and-improving-battery-life/
Note these reviews/articles mention a lot of apps I have never tried nor mentioned, so be sure to read instructions on use carefully.
If this helped you at all please don't forget to give me a Thanks
mahmoudgamal1 said:
Any one please
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
Just restart your N7. The battery draining issue would go away for about 5 days. This trick works for me
Lol, I am sure he has restarted his device since this started.
Choriandus said:
Just restart your N7. The battery draining issue would go away for about 5 days. This trick works for me
Click to expand...
Click to collapse
NCSUZoSo said:
There are a couple things I would do, first is you need to monitor what is draining the battery. One thing to note though is your OC is obviously going to drain the battery quicker than stock and your governor setting could also affect this a lot. I am guessing your custom ROM has a non-stock kernel with it, if not I would recommend Franco's Kernel (r75 is the latest) and he even has an app that will keep you updated and flash for you (https://play.google.com/store/apps/details?id=com.franco.kernel&hl=en) there is also a free version of that. Franco's paid app has a built in power settings option that lets you adjust power usage per app that could be extremely useful in your case. However I would do some monitoring first and make sure a live wallpaper or a hardware monitor is not draining more battery than you think it is.
I've used these two apps and both do a great job of letting you know what is using the battery most during load/idle/sleep:
Better Battery Stats:
https://play.google.com/store/apps/details?id=com.asksven.betterbatterystats&hl=en
Go Power Master:
https://play.google.com/store/apps/details?id=com.gau.go.launcherex.gowidget.gopowermaster
Android Tuner (does A LOT for the price, including battery monitoring), If you are rooted this is almost a must buy:
https://play.google.com/store/apps/details?id=ccc71.at&hl=en
Also in Android Tuner and I think Better Battery Stats (I've uninstalled it since I got Android Tuner) there is an option to turn on a fast charge option. Fast Charge will decrease the time to charge the battery, however I haven't used this feature because it sounds like there must be a catch (more power to the battery quicker isn't going to be at stock spec power delivery from charger to battery). If my N7 was having trouble charging, I might consider it.
Really the first thing you need to do is install one of the monitoring apps and watch what is using your battery the most and if something is using it a lot that you didn't even realize. I was using UseMon to monitor and it was using 36% of my total battery usage, so I ditched it.
Then you have some things you can do to save your Battery
You have Juice Defender which has some great options in it if you are draining the battery too quickly:
https://play.google.com/store/apps/details?id=com.latedroid.juicedefender&hl=en
It comes in 3 versions Free, Plus and Ultimate.
One of my Favorites that saves the battery is Lux Dash:
https://play.google.com/store/apps/details?id=com.vito.lux&hl=en
There is also a free version, but this is easily worth the few bucks. It uses the camera to read the lighting of the environment you are in and based on the ratio you set, will dim or brighten your display. This method trumps any of the built in features, like NVIDIA's option.
Those two apps will help your battery a lot, especially if you also use the monitoring programs to see what is draining the battery so quickly.
You can read this article on some apps for monitoring and increasing battery life: http://reviews.cnet.com/8301-19736_...s-that-prolong-your-smartphones-battery-life/
and: http://www.talkandroid.com/guides/b...pps-for-analyzing-and-improving-battery-life/
Note these reviews/articles mention a lot of apps I have never tried nor mentioned, so be sure to read instructions on use carefully.
If this helped you at all please don't forget to give me a Thanks
Click to expand...
Click to collapse
Thnx, it also worked with ur apps and after I turn off my device for long time.
Sent from my Nexus 7 using Tapatalk HD
No problem man, glad I could give you some useful advice!
My N7 LTE have these 2 wakelocks (based on BBS) that kept draining my battery:
- suspend_backoff
- qxcom_rx_wakelock
These caused the "Android OS" USAGE to go about 38% of the battery life.
I used Greenify and AutoStarts to disable the same applications in the N7 as my S4 (Amazon AppStore), so it seems to be something specific to the N7 LTE.
There no way you can get battery life as posted by the WiFi only users in here:
http://forum.xda-developers.com/showthread.php?t=2381370
Wowzers - battery life!
Stop the presses! LTE uses more battery than wifi! The world must know!!
Also, I don't have these wakelocks on my LTE version.
lanwarrior said:
My N7 LTE have these 2 wakelocks (based on BBS) that kept draining my battery:
- suspend_backoff
- qxcom_rx_wakelock
These caused the "Android OS" USAGE to go about 38% of the battery life.
I used Greenify and AutoStarts to disable the same applications in the N7 as my S4 (Amazon AppStore), so it seems to be something specific to the N7 LTE.
There no way you can get battery life as posted by the WiFi only users in here:
http://forum.xda-developers.com/showthread.php?t=2381370
Wowzers - battery life!
Click to expand...
Click to collapse
JoeBruin32 said:
Stop the presses! LTE uses more battery than wifi! The world must know!!
Also, I don't have these wakelocks on my LTE version.
Click to expand...
Click to collapse
So your N7 last only 12 hours?
If no, then help those who have battery life. Otherwise, we don't need your sarcasm.
This is my first LTE Android tablet. My other one is an iPad with cellular and I have great battery life.
LTE and the "great battery life" are incompatible.
Tim4 said:
LTE and the "great battery life" are incompatible.
Click to expand...
Click to collapse
Isn't the above is what I am trying to point out in the thread title?
I think most people know battery life is bad, but I just want to point out that it is REALLY BAD.
12 HOURS with just 2 hours screen time.
If I am wrong and you all get better battery life than the above, please enlighten me, especially the issues I had above.
By the way, my S4 Active, a PHONE, have far better battery life than the N7 LTE.
Yes LTE uses more battery than WiFi only, only logical since it's powering extra hardware.
Mine seems to last quite a bit longer than that. Sorry I can't check for wake locks since BBS is not yet working under KitKat.
With just built-in battery state, I'm currently almost 14hrs since charged, got around 1hr screen time and still got 78% battery left.
Sent from my KitKat Nexus 7 LTE using Tapatalk
I think the LTE version does consume a bit more battery.
Here I use the EDGE network. When in standby status, the battery power drops usually 1 percent / 2 hours. Something like that. It was for 4.3.1, not the 4.4.
I've heard 4.4 is far more power efficient.
Mine usually last 36 hours on a charge. Currently it has been up one day and four hours with five hours screen time. Playing videos and playing poker used most battery. I am sure many people have similar stats.
Sent from my Nexus 7 using xda app-developers app
Something is not right on yours, Android OS battery usage is at 12% consistently on mine.
Sent from my Nexus 7 using xda app-developers app
Same here. Unreasonably terrible battery life for LTE. I expected a little more. Upgraded to 4.4 also.
Are we all talking about the same device? The 2013 Nexus 7 LTE? I get EXCELLENT battery life from mine. I've never had an Android device last this long. I could go up to 3 days without having to recharge. I usually put it on the charger every two days. See my snapshot:
I bought the LTE version because I wanted LTE connectivity.
Thanks to everyone who shared their battery life. So something is causing these wakelocks and shown as "Android OS".
Interestingly, I do NOT use many apps that use background processing, such as Facebook, Instagram, weather or even Google Now.
Quick question: do you guys use ANY anti-virus/malware application? I use Avast but because I want the FIREWALL capability to block app or games from making Internet connection, since that will eat up my data. These apps/games usually connect to download ads and they're built-in, which Ad-Away CANNOT block (per the author).
Other background apps I use are "normal" apps --> calendar, 3 Gmail accounts, Google Contact Syncs, Google Talk. I use Greenify too.
If you guys do NOT use anti-virus/malware application, let me know. I will try uninstall Avast and monitor my battery life tonight to see if the same wakelocks appears again.
BTW, those who use BBS, do you see excessive usage of these wakelocks:
- suspend_backoff
- qxcom_rx_wakelock
grooveoverdose said:
Same here. Unreasonably terrible battery life for LTE. I expected a little more. Upgraded to 4.4 also.
Click to expand...
Click to collapse
Oh? Looks like you have the same issue as mine: High usage of "Android OS". If you're NOT on 4.4, I'd have ask if you can use BBS to check what caused this.
lanwarrior said:
Thanks to everyone who shared their battery life. So something is causing these wakelocks and shown as "Android OS".
Interestingly, I do NOT use many apps that use background processing, such as Facebook, Instagram, weather or even Google Now.
Quick question: do you guys use ANY anti-virus/malware application? I use Avast but because I want the FIREWALL capability to block app or games from making Internet connection, since that will eat up my data. These apps/games usually connect to download ads and they're built-in, which Ad-Away CANNOT block (per the author).
Other background apps I use are "normal" apps --> calendar, 3 Gmail accounts, Google Contact Syncs, Google Talk. I use Greenify too.
If you guys do NOT use anti-virus/malware application, let me know. I will try uninstall Avast and monitor my battery life tonight to see if the same wakelocks appears again.
BTW, those who use BBS, do you see excessive usage of these wakelocks:
- suspend_backoff
- qxcom_rx_wakelock
Click to expand...
Click to collapse
I'm not a fan of social media, so I don't have Facebook, Google+, Instagram either. I do not use any anti-virus applications. That may be one of your battery drainers. My Nexus is bone stock and still on 4.3. I don't know whats BBS or a wakelock, so I can't help you with that. I just use my nexus for browsing web pages using Dolphin and it's Jet Pack to block ads while surfing. I also use the WSJ (Wall Street Journal) apps as well as apps from my stock brokers (Interactive Brokers and Tradestation) to keep track of the markets. I do use Google music to stream music in the car using bluetooth.
howardv said:
I'm not a fan of social media, so I don't have Facebook, Google+, Instagram either. I do not use any anti-virus applications. That may be one of your battery drainers. My Nexus is bone stock and still on 4.3. I don't know whats BBS or a wakelock, so I can't help you with that. I just use my nexus for browsing web pages using Dolphin and it's Jet Pack to block ads while surfing. I also use the WSJ (Wall Street Journal) apps as well as apps from my stock brokers (Interactive Brokers and Tradestation) to keep track of the markets. I do use Google music to stream music in the car using bluetooth.
Click to expand...
Click to collapse
BBS is Better Battery Stats. It was created by one of XDA member and available here: http://forum.xda-developers.com/showthread.php?t=1179809. The app allows you to drill down and see a particular process causing the battery drain.
I have uninstalled Avast and will monitor the battery tonight. Will leave it ON, unplugged, CONNECTED to WIFI and not used. Let's see what will happen.
PS: Any good firewall app I can use to stop free apps from downloading ads? For example, I played Tiny Death Star and that app uses about 10 Mb of data in 1 day...and I only played it 3 times!
I had the 2012 Wi-Fi/3G model and it too had terrible battery life. I don't mean while it was using the cellular radio only, but on Wi-Fi only the battery life sucked. I pulled the SIM card out and turned off the Wi-Fi too, didn't help at all. I know the 2013 N7 does have a smaller battery compared to the 2012, but I feel the 2013 Wi-Fi only version gets better battery life than the 2012 Wi-Fi only version did. Yes, I had 2 N7s last year.
Sent from my SCH-I545 using xda app-developers app
lanwarrior said:
PS: Any good firewall app I can use to stop free apps from downloading ads? For example, I played Tiny Death Star and that app uses about 10 Mb of data in 1 day...and I only played it 3 times!
Click to expand...
Click to collapse
Try AFWall+ available through https://f-droid.org or the f-droid app. This app requires root. Hope this helps.
Sent from my Nexus 4 using xda app-developers app
Hi guys, I have N7 Mk2 LTE version.
If I don't play games, it keep 2+ days without charging. So stop writing all the bull...t above.
Before you write some nonsenses about battery drain, try to uninstall Facebook app...
Try switching to Samsung Note 8 and you'll thank that N7 LTe has more battery life. Been there and never look back since I switched to N7. Awesome battery life, last to 2 days and perhaps 14-16 on normal use with a bit of short gaming.
Sent from my Nexus 7 using XDA Premium HD app