[Q] Randomly bad battery drain - myTouch 4G Q&A, Help & Troubleshooting

About a month ago, I was running RoyalGinger 3.0 with bluetooth, GPS, and background data disabled, and I was only using my home wifi to get online. My phone would pretty much hold a 100% charge for 5-8 hours if I left the screen off. I was pretty amazed at my battery life. Then I decided I wanted to try a different rom, so I backed up in CWM and did that. When I returned to RoyalGinger, my phone wasn't holding the 100% charge for as long anymore and hasn't done it since then (yes, I did re-calibrate the battery, like twice at least).
Recently though, my phone has been having horrible battery life under the same conditions. The only difference is that now I use LauncherPro instead of the stock launcher. I'll charge to 100% + 15 minutes or so, and with the screen off, the phone divebombs to about 95% within an hour and a half. If I actually use the phone, it will lose 30% in 2 hours. I have no idea what the problem could be since I don't have any data-syncing apps in the background and I'm really just texting people.
Any ideas?

The consumption doesn't sound like anything out of normal. A difference in signal quality (radio or WiFi) or using radio for data instead of WiFi can cause that.
In any case, just check the apps that use your battery, and see that you don't have any process getting CPU stuck on 100% (you can see CPU load in System Panel Lite, for example).

Download the apps below.....this will help you out.....
Use the app SetCPU for Root Users
It allows control of certain aspects of the Linux cpu freq driver, allowing for overclocking, underclocking, or tweaking speeds and settings. Download it here.
Use the app Battery Booster
Battery Booster is a powerful battery boosting tool and power management application specially designed for Android devices. Download it here.
Always remember to remove the charger immediately when the battery level reach 100% for longer battery life.

Related

I have a clue on the battery problem

Ok... I was big into kernels, processes, everything on my N1 so I am quite familiar with tracking battery life by different means. I can provide the following information:
At 11:20pm, my phone was at 100% and had moderate signal and was connected to WiFi - full strength.
At 5:50am, my phone was at 83% battery with NO USAGE, not even the screen turned on once.
My Battery Use had the Android System at the top of the usage with ~30% usage. The CPU Usage was over 1h 30m!
The above is extremely odd since I didn't touch the phone. My N1 would've been <2 min.
In the Battery History CPU Usage section, SUSPEND was the only item with red and it was roughly 15% full.
The SUSPEND function, I believe, is the controller that suspends the functions of the phone so it can go to sleep. It should never use this much battery.
There are tons of packages in the Battery Use screen, which is weird. Some of the ones are: Settings Storage, RilFactoryApp, com.sec.android.app.lcdtest, AllShare, Error, Checkin Service, BluetoothTest, Perso, BrcmBluetoothServices, Com.samsung.InputEventApp, Sync Feeds, Settings, Factory Test, Network Location, VPN Services, Android System, WlanTest
A lot of these items (and more) show up in Advanced Task Manager, and they never existed on my N1.
I believe that destroying these services via ATM greatly improves battery life (even though generally it isn't needed in Android). After killing them all and keeping an eye on it, only 2 or 3 have respawned and my CPU usage is <1m which proportionally is much lower than the former experience.
Anyone have any ideas or input?
I've been trying to figure this out also...each battery had its on date on it..my first battery was june 21...my current one is june 28...my 6/28 battery also had a little qr barcode on it....
The 6/21 battery was pretty awful...today I'll be using my 6/28 battery for the first time...it was charged at 39% and 10 hours later overnight...it only lost 10% and is at 29% now...i must say that's pretty good because I was certain it would be dead in the morning. I'm gonna test it the next couple of days and see how it holds up....our issues may be as simple as getting the right production of batteries...wouldn't that be a relief? Lol
Or....i could just be crazy
Sent from my Samsung Vibrant using XDA App
My only battery weirdness is that I turned off autobrightness and cranked the brightness and my battery life dramatically improved. Would get home form work and have 30%, now I have something like 50%...
No clue why unless using the light sensor or making the adjustments uses more juice than it should.
popypopy said:
My only battery weirdness is that I turned off autobrightness and cranked the brightness and my battery life dramatically improved. Would get home form work and have 30%, now I have something like 50%...
No clue why unless using the light sensor or making the adjustments uses more juice than it should.
Click to expand...
Click to collapse
This isn't relevant to these problems though as I'm talking about standby time.
Oh and my android system is only at 3%
Sent from my Samsung Vibrant using XDA App
Anyone else have any ideas?
good idea
I think it is a good idea to track running tasks.
Let us create a list of tasks for stock apps and the most often used off the market ones. Then everybody could decide for herself what apps to run. Being able to compare function and price (here battery drainage) is a great thing. The list might contain:
name of the app | the name as appeared in task managers | function | typical power drainage (high, moderate, low, or how many hours will battery last if only the app were running)
I think, the top post could be moderated as needed appropriately.
I don't know, but my battery life is pretty bad. Today I had the phone connected to my laptop via USB, and my laptop connected to the wall. I was using the phone and my battery percentage was STILL going down, even though it was plugged in!
Sent from my Samsung Vibrant using XDA App
ArcticWolf91 said:
I don't know, but my battery life is pretty bad. Today I had the phone connected to my laptop via USB, and my laptop connected to the wall. I was using the phone and my battery percentage was STILL going down, even though it was plugged in!
Sent from my Samsung Vibrant using XDA App
Click to expand...
Click to collapse
Well USB will always charge slow...
hah2110 said:
Well USB will always charge slow...
Click to expand...
Click to collapse
Always plug the phone into the wall if you can. The USB from the laptop doesn't charge at the same rate.
I kill all my running apps that I don't need with ATM, then rid all unnecessary widgets, turn the brightness off of auto and on the lowest setting you prefer, turn off GSP, turn off Wifi, turn off Bluetooth and noticed a huge improvement.
iunlock said:
Always plug the phone into the wall if you can. The USB from the laptop doesn't charge at the same rate.
I kill all my running apps that I don't need with ATM, then rid all unnecessary widgets, turn the brightness off of auto and on the lowest setting you prefer, turn off GSP, turn off Wifi, turn off Bluetooth and noticed a huge improvement.
Click to expand...
Click to collapse
Now you just need to reduce screen size by 80%, get rid of the touch interface and you have a Nokia 6110. I guaranty 7 days until the battery drains.
Some other ways to deal with battery life are:
a. Get a second battery.
b. Charge the damn thing once in a while.
That way, you can actually enjoy the smartphone and think less about killing processes and *****ing how bad the battery life is on forums.
I just rooted my Vibrant the other day and installed setCPU. I set the max to 800 and the min to 200 using the conservative setting and i noticed much better battery life the very next day. Having a 1ghz processor is awesome but it seems that default settings for this phone probably has it running at the rate possibly when the screen is off also.
al74 said:
Now you just need to reduce screen size by 80%, get rid of the touch interface and you have a Nokia 6110. I guaranty 7 days until the battery drains.
Some other ways to deal with battery life are:
a. Get a second battery.
b. Charge the damn thing once in a while.
That way, you can actually enjoy the smartphone and think less about killing processes and *****ing how bad the battery life is on forums.
Click to expand...
Click to collapse
I'd have to go with this. Just some common sense will go along way. If you dont absolutely need the GPS, bluetooth, or WiFi turn them off (the phone even gives you a widget for it...). Even with the brightness at 0% its still darn bright.
Sure it requires a bit more input from the user but its still a darn good device.
popypopy said:
My only battery weirdness is that I turned off autobrightness and cranked the brightness and my battery life dramatically improved. Would get home form work and have 30%, now I have something like 50%...
No clue why unless using the light sensor or making the adjustments uses more juice than it should.
Click to expand...
Click to collapse
Thats what i did and my battery life improved alot.

Definitive Battery Thread how people are getting amazing battery life

Ok guys here is the deal. Some people claim they are getting amazing battery life and I want to know what they are running.
If you are getting great battery life like some claim. Post up this info about your phone. Let me know if i left out anything.
1. ROM
2. Kernel
3. Radio version
4. WiMax radio version
3. Are you using set cpu if so how are your profiles set up
4. Are you using juice defender/ultimate juice if so how are your profiles set up
5.Sync Settings
6.Radios always on or do you turn them on and off
7.Display settings
8.Categorize usage (light,moderate,heavy)
9.How do you charge your battery(through the phone, through the phone with an odd technique, wall charger, car charger, usb, etc..)
10.Anything else that would affect battery life/miscellaneous comments
11.Post up some screen shots of battery life unplugged and device up and awake time(be sure to reboot before your battery run as awake and up time do not reset every time you unplug)
I will be testing out my phone today and ill post my results later. Thanks guys I think this should help users get better battery life.
SantaClause88 said:
1. ROM
2. Kernel
3. Radio version
4. WiMax radio version
3. Are you using set cpu if so how are your profiles set up
4. Are you using juice defender/ultimate juice if so how are your profiles set up
5.Sync Settings
6.Radios always on or do you turn them on and off
7.Display settings
8.Categorize usage (light,moderate,heavy)
9.How do you charge your battery(through the phone, through the phone with an odd technique, wall charger, car charger, usb, etc..)
10.Anything else that would affect battery life/miscellaneous comments
11.Post up some screen shots of battery life unplugged and device up and awake time(be sure to reboot before your battery run as awake and up time do not reset every time you unplug)
Click to expand...
Click to collapse
good luck on trying to start a "definitive" thread. I think you may be asking for a bit much of people though. 11 items? screenshots?
How do you define "amazing"? I generally get about 17-21 hours with moderate usage on baked snack 1.7 with default kernel. I have latest radio, and the 2nd latest wimax radio. I'm not running cetcpu, any of the juices, or anytype of task killer, although I do have systempanel set up to monitor all the time. I have echange and gmail set up to sync as items arrive (with no off peak times). I uninstalled FB (cuz it would try and sync even when I told it not to - even the one for sense), uninstalled news, stocks and all of the other bloatware. data always on, rarely use wifi (cuz my router sucks), and keep radios always on - i never turn them off. Moderate daily usage - maybe 20 minutes worth of calls, read and reply to 15-20 emails, 40-60 minutes of pandora, 30 minutes of internet browsing with stock browser, and my biggest battery drain is the xda app, which as some of you might have guessed, I'm slightly addicted to. I generally charge for an hour or 2 at night with the stock wall charger, then top off in the car on the way to work if I'm below 75% or so (30 minute drive will charge about 25% battery with an aftermarket palm pre car charger). Keep my brightness at auto until I get home, when I change it to 19% (because I can't seem to get the slider to hit exactly 20% on the dazzle widget lol)
occationally, I'll charge at my desk or on the way home, but those are the exceptions, on days when I'm using the phone heavily
biggest thing Ive found to help my battery is system panel - helped me identify a number of rogue apps using cpu and sucking my battery dry.
no screenshots.
and just so you know, you can probably find all of this info by searching and going through the threads. There are a ton of battery threads already.
edit - heyhey this is my 600th post!

Terrible atrix battery

I've unlocked and am running Ken's Alien ROM and so far I really like this. Im an international user on orange uk, so I use faux123's kernel for Oc and ram fix. But there is one caveat. I have really rubbish battery life. I did all the stuff (charge to 100% from 0% wipe stats, calibrate). The fact is, I left it on, for ten hours. The display was on for about 2. No usage. When I returned the battery was 30%, with phone idle consuming 30%. Newer radio needed? What can I do? My baseband is N_01.95.00R .
I've heard good things about the newest AT&T radio for battery. How can I flash this to an international ATRIX?
Help appreciated
Edit : phone idle consumed 40% :O
I have the exact same issue. Unfortunately, all that I can say is that changing neither kernel, radio or rom did fix this issue. I had some improvements when I followed this topic and flashed back my stock kernel (with no OC), but still very far from what I would consider a decent battery lifetime (10h with 3g + email and twitter sync and screen off)
Some users have tried and it worked well from them. I'm on the team that didn't work ): But you could give it a shot
Calibrate your battery. Charge to 100% wipe battery stats. Then discharge to shut off. Then charge to 100% again.
Sent from my MB860 using Tapatalk
_Dennis_ said:
Calibrate your battery. Charge to 100% wipe battery stats. Then discharge to shut off. Then charge to 100% again.
OP stated he tried calibration without success... I too am having subpar battery performance - interested to see what others have done to achieve better battery performance besides the previously mentioned methods.
Sent via Motorola Olympus using XDA Premium
Click to expand...
Click to collapse
_Dennis_ said:
Calibrate your battery. Charge to 100% wipe battery stats. Then discharge to shut off. Then charge to 100% again.
Sent from my MB860 using Tapatalk
Click to expand...
Click to collapse
I've done all that stuff, but it doesn't help IMHO. (at least it didn't do anything for me)
Only 2 real fixes that have worked for me are these:
1. Freeze unnecessarily apps with Titanium Backup (use "System panel" from the Market to find out what keeps constantly running/popping up in the background that you don't need)
AND
2. Turn off Automatic Sync, and get in the habit of doing that stuff manually all at once.
@2. I use to sync in the worst signal areas, and that drained the **** out of my battery. Sync/get your updates manually in strong signal areas whenever possible...
New radio from the fruitcakes thread and the latest faux123 kernel seemed to kill that bug.
I sold my atrix to my less then nerdy friend and I just fixed that bug for him yesterday. Same deal tho...
Sent from my Samsung Seine
I noticed from X2 battery (I think) every minute or two the phone constantly checks for either cell or data signal. I can let my iphone 4 sit on the counter all day and it might use 1-2% but my atrix drops 5% in an hour without touching it. No calibration or battery fix will help. Even CM7 uses it fairly quickly. Im running Alien 4 with max battery saver and gps and auto sync disabled...it should last for a full day with heavy usage.
Alien 4 w/theme, faux123 kernel, everything at stock settings for this rom, nothing frozen, and I am sitting at 1 day and 13 hours with 28% left, mostly idle, but an hour long call and bit of game playing.
If you are getting something on the order of just a few hours then your phone or battery must be bad. I am doing nothing to extend the battery life other then using the default settings.
The phone should get 2 days sitting on the counter..LOL Of all the phones I've had and iPhones I've jailbroken, there is definately something wrong with the Motorola or Android software running on this phone. I've never had to worry about calibrating or battery fixes. This is just my honest opinion. I've had 2 ROMs in all the ones I've flashed that had good battery life and I think it was a coincedence that maybe something didn't load right or got deleted by accident.
Phoneguy589 said:
The phone should get 2 days sitting on the counter..LOL Of all the phones I've had and iPhones I've jailbroken, there is definately something wrong with the Motorola or Android software running on this phone. I've never had to worry about calibrating or battery fixes. This is just my honest opinion. I've had 2 ROMs in all the ones I've flashed that had good battery life and I think it was a coincedence that maybe something didn't load right or got deleted by accident.
Click to expand...
Click to collapse
Most iphone users need to charge at LEAST once a day. A lot of them charge more than once. I can sometimes get 2 days usage from my Atrix, with heavy texting, some calls, and some games - which is pretty damn good.
Maybe your battery is the issue. not all Atrix are created equal and not all batteries function the same
When you go into settings>running apps, does your free and used ram add up to over 800? Mine used to and now it doesn't. It adds up to like 750....I always thought it would add up to mid to upper 800's. It also could be the battery but I was pointing out that I have left my wife's Iphone 4 and my atrix on the counter all day (neither one got used) and my atrix was down in the 70% range and her phone was at 96%. I'm just thinking something is running or consuming the battery. I've used fastboot to do all wipes and still seem to be having an issue.... I also flash ROMs every few days so maybe the battery calibration doesn't have time to really calibrate. I'll pick a combo I like and keeep it for a few days and see if I notice a better battery life.
How long has it been since you've flashed a ROM? It usually takes a few days for it to settle back in and provide decent battery life (at least from my experience). My phone right now has been on for a little over 7 hours and is at about 55% with Display using up 60% of the battery (3hrs on). This is with the Alien v4 and Faux's latest kernel. The first few days after flashing a ROM my phone would usually only last about 7 hours.
i get 2-3 days on stand by. and about 6-8 hours of straight use. 3-5 if i'm using mobile broadband.
1: keep gps and data off (background data is almost irrelevant.)
2: use green power
3: use a task manager to close applications that you are not using. (be sure you can add "ignore" exceptions otherwise get a different manager. anyone who says not to use a task manager is a ****ing punk hipster ***** fag who's irreparable damage to the geeks good name will not go unpunished)
4: do the "wipe battery stats" bit after every flash (100% charge, wipe stats, full discharge)
5: is to install a custom kernel and use SetCPU to underclock to 312 while the screen is off..
most importantly: use your head. if you stream 1080p using mobile broadband for 2 hours your battery is dead.
I flash ROMs every few days but I call BS on the whole "Battery Calibration" thing. If my battery is showing 4200mv...it's full. It will die faster the more processes the phone does so my point it....whether I flash a rom every day it shouldn't matter, if the phone (After I set up and install whetever apps) gets unplugged, something drains the battery. Maybe the infra red sensor is always on, or a process is always starting and ending, who knows but the battery cannot be calibrated, the phone might need to be calibrated to read the correct voltage but batteries don't hold memory unlike the old NiCD rechargables from years ago.
When you flash a rom the battery stats get messed up. Based on what I know the way the battery drains depends on previous battery usage data hence the reason why it last longer after a few days of use after a rom is flashed. It needs to build up new data to correctly report battery use. Maybe I'm wrong but my experience supports this.
Sent from my MB860 using XDA Premium App
I am running Alien v4 with the stock kernel and I am getting well over a day with pretty heavy usage (phone calls, texts, emails, FB, twitter, XDA, Games). My setup:
Battery Mode= Maximum Battery Savings
Auto Brightness off, usually on 30%
Unused blur apps frozen
Reinstalled performancemanager.apk (blur task manager), set to kill unnecessary apps after 2 minutes of inactivity
No overclock, I don't see the need to overclock outside of high benchmark scores. Without overclock I still play every game smoothly without any hickups or slow downs. The phone still feels super fast without it.
I turn off all unused services (gps, bluetooth, wifi)
After you charge your phone and take it off the charger, reboot it.
It seems that a process kills the phones battery after you take it off the charger. You have to reboot after taking it off. It works wonders. Currently on 16 hours of use @ 45% battery on alien rom with stock kernel.
Cheers.
lilhaiti said:
I am running Alien v4 with the stock kernel and I am getting well over a day with pretty heavy usage (phone calls, texts, emails, FB, twitter, XDA, Games). My setup:
Battery Mode= Maximum Battery Savings
Auto Brightness off, usually on 30%
Unused blur apps frozen
Reinstalled performancemanager.apk (blur task manager), set to kill unnecessary apps after 2 minutes of inactivity
No overclock, I don't see the need to overclock outside of high benchmark scores. Without overclock I still play every game smoothly without any hickups or slow downs. The phone still feels super fast without it.
I turn off all unused services (gps, bluetooth, wifi)
Click to expand...
Click to collapse
I use the same battery settings recently. I turn off GPS and Sync unless I'm using navigation. Which blur apps do you freeze? I just noticed (read on the Alien thread) On the unlock screen, hold the home button and it unlocks. I wonder if something like in pocket detection keeps the IR eye on all the time.
Phoneguy589 said:
I use the same battery settings recently. I turn off GPS and Sync unless I'm using navigation. Which blur apps do you freeze? I just noticed (read on the Alien thread) On the unlock screen, hold the home button and it unlocks. I wonder if something like in pocket detection keeps the IR eye on all the time.
Click to expand...
Click to collapse
I have frozen:
All of the authenticators
Weather
Tasks,
Home,(I use launcher pro)
Music (I use Poweramp)
Toggle Widgets,
News,
GingerBlur,
Gallery, (I use QuicPic)

Battery Drainage

I've been using the Aria for 2 years now, and just 2 days ago I ran into an unexpected battery drainage problem.
1. When I am speaking during a call and not holding the phone close to my ear, the proximity sensor is not always triggered which causes the screen to stay on. While the screen is on, the battery drains 1% every minute (or every 30s). When I turn the screen off, the drainage is fine.
2. When I receive text messages (voicemails from my landline trigger a text message on my Aria), the battery drainage is very bad (1% per minute or 30s).
I never use data networks (turned off), background data and autosync are both turned off, gps is always off, wifi is always off, screen brightness is always custom at the 3rd lowest brightness setting. Basically, I try to conserve battery life and only use the phone for talking.
When I looked at battery usage, it was mostly due to Android System, Voice Calls, and Cell Standby.
I'm running the very old Liberty Froyo Rom (the version released like 2 years ago) and the default CM7 kernel. Also, I upgraded to the newest radio to fix this problem, but it didn't seem to make a difference. I don't think these things should be causing the problems since it only occurred 2 days ago while these things have been constant.
Any ideas what is going on or what I can do to make my phone last longer? Talking on the phone for 30 min from full charge takes my phone down to 25%...
honestly at this point my battery meter is completely wonky. the percents mean nothing now. i still get roughly the same battery life but it'll burn through large chunks of percentage in minutes but sit at a single percent for hours or active use.
i'd say try a new battery
If you've got clockworkmod installed, boot into recovery and wipe battery stats. If you're still experiencing this, try a different rom. I've been using CyanogenMod 7 for a long time with no issues.
If this fails, it's probably your battery. It might just be pooped out. If you get a new one always buy and OEM battery! Don't get anything off-brand.
really? its about the battery? not the OS itself?
after 2 years of use it's safe to assume that it's the battery and no necessarily the rom.
2 years with the same battery? old battery i say and is usually the life expectancy with it. i say you get a new battery. or try charging your battery all the way full. wipe the battery stats. then let your phone die, then completely recharge it all the way up again. that worked for me.
Battery life with ANY Android phone is hit and miss, but the Aria is notoriously terrible with it. However, there are several "tweaks" you could do to help it (note: I said help, not fix.). Beyond the basic system setting adjustments, I have found the "Die Hard Battery Calibrator" script by zeppelinrox to be helpful. Look for his V6 SuperCharger thread here on XDA to find it (as well as other useful scripts). Of course, the usual caveats apply: S-OFF, root, magic powers, etc.

[Q] How does rooting affect the battery life

As the title says, does rooting the NST affect the battery life at all?
What about using another e-reader app, say the kindle app, in comparison to the battery usage of the default reader?
And also that crazy NoRefresh app that I saw. What is the affect of the battery life with it enabled?
I can say it running like crazy
The battery went down to 40% for one day uses.
I have many email accounts on the sync though.
GoldenStake said:
As the title says, does rooting the NST affect the battery life at all?
Click to expand...
Click to collapse
I've been running rooted for a few weeks now. I don't think rooting, per se, affects battery life so much as what you do with it.
Out of the box, the NST uses very little power. If you leave wifi off, it will last quite a long time. The minute you start loading up anything that wakes the unit up, or that turns on and uses wifi, battery life drops. Since it normally uses so little power, the drop seems quite dramatic.
Here are some rough and very unscientific numbers based on my usage:
Unit off with wifi off: 2% battery consumption per 6 hours.
Unit off with wifi on: 2% battery consumption per hour.
Unit on and in use with wifi on: 4-6% battery consumption per hour.
I haven't really let it sit long enough to really validate these, but they give you an idea. I'd expect to get a week to 10 days out of it with "typical" usage, and probably much more. Part of the problem of bench-marking this thing is how quickly it charges up, even when I only connect for a few minutes to side-load some books.
I use Tasker to turn wifi off unless a very small group of apps are running, and shut it off when they exit.
If you keep anything from polling, don't use active widgets and turn wifi off when not needed, you should get more out of it than most any other device you own. Watch out for things that hang in the background. I was once downloading some files from the Market and it hung, so I lost a lot of power overnight. If you load up with active wallpapers, widgets and/or apps that poll in the background, expect to see it using the battery quickly.
I charge every 4 days, but that's because I use it without wifi unless I am getting an app or something. But that's just me.
In my experience the battery life got worse after initial rooting. It is noticeable. Rooting itself has nothing to do with it.
The biggest offenders are apps installed in the process. I removed most of apps that either worthless for me or attempt using internet frequently. I don't think I need google on a book reader. The reader does not provide any privacy, even password protection. I removed everything related to google. Apps can be sideloaded if necessary.
Free SuperManager is a very good apps for managing the reader but free version tends to use internet too much.
Now the battery life is back to what it supposed to be. Rooting is only useful for me for gaining control and access to the web browser if there are no alternatives. NT is just a reader and a nice one.
My Nook died afer 3 days of intense exploring (wifi on non-stop).
I've spent approx. 6h/day on it.
But it's a pretty nice result IMO.
I think rooting does't really effect battery life by itself. I've checked battery life log on NookTouchTools (an app) and it says 77% was drained by display, but i cant compare it to non rooted version.
I've seen battery drain vary enormously from not dropping at all to dropping precipitously with normal off (not completely powered down) and WiFi shut off. I think that the only really way to get a handle on this is to put a milliampmeter in the battery circuit and measure in real time the current drain.
I do know that if you have the WiFi on you can still ADB to the Nook even when it is "off". You can even start apps!

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