Database Users

WiFi or 3G, which eats more Power?

i use WiFi @ home and work, 3G everywhere else.
my battery was over 50% before bed, woke up with am with 5% left.....
so 45% of my battery life was eaten up in 8 hours with NO use?
any thoughts?

Wifi seems to be a real battery eater on this device (along with GPS). I leave it switched off unless I'm actively using it, and have no problems with battery life (it would last >24 hours if I let it.. I charge overnight though).
As there's no 3G switch on the widget I don't ever switch that off so haven't seen what improvement that would give. Cell Standby is still the largest user of battery, so maybe it would.

Set wifi to sleep when screen turns off.

There's an option for that? Not seen that one..

muncheese said:
Set wifi to sleep when screen turns off.
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I didn't know you could do that, however, i already have that option selected....after i found it in the menu.
i guess i'll just have to experiment and see if 3G saves me power over the weekend.

Yeah I am pretty sure that option is the default. It still definitely drains more power with the WiFi enabled than without, sleeping or not. Not sure vs 3g, I disable or enable both as I need them.

I thought Wifi drains very little power ... with my phone on airplane mode and wifi only, the battery lasts over 30 hours with Meebo on, push e-mail on, and e-mail sync every 15 min.

Likewise, I have gps/wifi/2g/screen widgets on my main home page.

This doesn't exactly apply to the OP, but there's a nice app called "Y5 - Battery" in the market that switches off the WiFi radio in areas that you usually don't use WiFi.
Also, you can see what's draining your battery if you go to Settings > About Phone > Battery Use. There's some cool graphs showing where all your battery went since the last charge. Maybe you have a program that's running in the background that's sucking up all your battery.

I have had some battery drain issues since I received my N1 3 days ago. I found that Android 2.1 has a nice battery log (/d/battery_log) which updates every 50 - 55 seconds. In doing some tests to see what was killing my battery I can tell you that it isn't WiFi.
I would say that when in use, 3G draws a bit more than WiFi when actively used, but when WiFi is just idle it seems better than when 3G is connected and not in use.
In case anyone cares...I am still isolating all of the battery drain issues, but one of the biggest I have eliminated by uninstalling seems to be from BeautifulWidgets. I found it hard to believe, but my testing seems pretty clear. I also have a decent draw whenever I'm in the car with Bluetooth sync going. I would have had a hard time confirming this without this battery log file.

Wifi is extremely power efficient on this device.
I use the device on at&t edge and have the wifi turned on all day. the battery drain with pus email i about 4%/hour.
I think the combination of wifi PLUS being on an HSDPA network is killing your battery.

pus email? sounds gross

A quick calculation gives me 2.4% an hour, and that's with sync on, Wifi off, 3G on and using the phone a bit (not so much today). That's consistent with what I see normally - if you never actually used the phone you could push 3 days out of it.. but of course there wouldn't be much point in having it switched on then so it drops to about a day after a bit of driving w/bluetooth on, streaming music, etc.
Of course it's not really productive to look at battery life as 'how long can I make this last' (although knowing I can theoretically push it to 3 days plus is going to be useful on holiday). You work out your average day.. say up at 8am, turn in at midnight, so that's 16 hours actual time that it's needed (assuming you charge overnight like most do) - then fiddle with the settings based on your own use so you hit that comfortably. I'm probably being overconservative right now.. I'm finishing the day with nearly 50% battery left & need to ramp it up a bit Maybe a few more games of Frozen Bubble..

http://www.google.com/phone/static/en_US-nexusone_tech_specs.html
According to the Google spec sheet:
Power and battery
Removable 1400 mAH battery
Charges at 480mA from USB, at 980mA from supplied charger
Talk time Up to 10 hours on 2G
Up to 7 hours on 3G
Standby time Up to 290 hours on 2G
Up to 250 hours on 3G
Internet use Up to 5 hours on 3G
Up to 6.5 hours on Wi-Fi
Video playback Up to 7 hours
Audio playback Up to 20 hours

I'd love to see someone get 12 days of standby!
The specs for mobile phones are always a bit of a fiction.. maybe you could do that if you put it in airplane mode and if you never activated the display at all...
I had a Sony Erricson that claimed 800 hours (over a month!) of Standby. Never got it over 2 days..
Would be interesting to see if anyone has managed 10 hours or even 7 hours of talk time... personally I doubt it.

TonyHoyle said:
I'd love to see someone get 12 days of standby!
The specs for mobile phones are always a bit of a fiction.. maybe you could do that if you put it in airplane mode and if you never activated the display at all...
I had a Sony Erricson that claimed 800 hours (over a month!) of Standby. Never got it over 2 days..
Would be interesting to see if anyone has managed 10 hours or even 7 hours of talk time... personally I doubt it.
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Some phones in Airplane Mode when not used can do those kind of numbers though. My K800 lasted about 2 weeks in standby when running like above. Though that just proves how pointless such numbers are.

So when using wifi, is 3g auto turned off?

galaxys said:
So when using wifi, is 3g auto turned off?
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I would assume the data aspect is, but the 3G voice is still active, even with WiFi on.

Battery sucks, so I went to the Sprint store and...

I know that battery life has been a hot topic among EVO 4G users. I have seen both sides of the spectrum with some getting an entire day or more out of their phones, while some, like myself, see 5-7 hours at the most. I finally went to my local Sprint Store/Repair Center where I was told that my battery life was "normal" and that EVO users should "except to charge your phone two or three times a day". Then the rep handed me a spare battery at no charge to me and told me to have a nice day.
So, here's the deal. I am a non-rooted, non-anything user. Is the only way to see a 24 hour charge to root my phone and flash a custom ROM? He did mention that Froyo would "increase your battery life a lot". Whenever that's going to happen. Sorry to add another thread on battery life, but I want to make an informed decision, as well as know if this rep was just brushing me off with 5-7 hour being "normal" and then handing me an extra battery for free.

So you got a free battery and all it cost you was having to talk to a fool? Sounds good to me.
I routinely charge every other night with my moderate usage. 5-7 hours would only make sense if I was streaming Pandora all day with 1 bar.

5-7 hrs? are you constantly downloading things? heavy usage? or just on stand-by most of the time? if your using your phone casually, like 3-4 calls ~ 15-20 min each call and have emails coming in at about 2-3/hr and you surf the web about 1hr/day on your phone... 5-7 hrs is not very good... usually you would need to make calls that are 30+ min with heavy browser usage and be in a really ****ty signal area while playing games and texting every 5minutes for you to get such ****ty battery life... there are a lot of forums out there with tips/tricks in improving battery life so don't expect people to start posting them here as there are THOUSANDS of posts on battery life on androidcentral.com and other such sites...
good luck... you should be able to get at least 12hrs on one charge with little to moderate usage -- again google and read for forums out there as there is a TON of information.

I'm curious, are you in a 4G or 3G area? if you have 4G on where there is no 4G, your phone will constantly search for a 4G signal, same with wifi. I find that 3G is pretty fast where I live. 1.2MB down. so I never really turn on 4G or wifi. I've been getting about 14-20 hrs depending on use, but that was only the few times I made it through a day without plugging it in to add music, or try to root it (without success) and stuff. today I unplugged it at 9:40 am, and have been using it pretty heavy. about 15 minutes of streaming video, 45 minutes of music playback, 35 minutes of internet use, constant messaging, some pictures, google talk, fringe running, as well as qik in the background, actually all kind of apps pop up in the background. I am at 50% battery at 5:00 pm. I think that's not bad compared to the N1 I just sold. I will say that I think Advanced Task Killer, from the markets probably helps the battery life. I highly recommend it. make sure you set it up to auto kill apps in the background. I think I get a couple of extra hours this way.

Found on Android Central Forum: (and it works, I get about 15-18 hours)
CHARGING EVO BATTERY FOR MAXIMUM LIFE:
You can charge your battery the following way to see if that helps improve the battery life on your device.
1.Connect the phone to the charger and charge the device until the LED turned green with the phone powered ON
2.Disconnect the phone, and power it OFF.
3.Reconnect the phone to the charger, and charge the device until the LED turns green again.
4.Disconnect the phone, power it ON and then power it OFF.
5.Reconnect the phone to the charger and charge until the LED turns green again.
6.Power ON and use.

My battery appears to have the same issue as well. My backlight is at 8%, auto sync is disabled for all services, always on mobile data is disabled, my network is set to CDMA, I'm not overclocked at all. I've done all the other battery saving tricks and I've done all the battery charging tricks.
I played Raging Thunder 2 for less than half an hour this afternoon, and my battery dropped down to 58%. I'm aware that games are pretty intensive, but isn't this a bit much?

EVOKeith said:
I know that battery life has been a hot topic among EVO 4G users. I have seen both sides of the spectrum with some getting an entire day or more out of their phones, while some, like myself, see 5-7 hours at the most. I finally went to my local Sprint Store/Repair Center where I was told that my battery life was "normal" and that EVO users should "except to charge your phone two or three times a day". Then the rep handed me a spare battery at no charge to me and told me to have a nice day.
So, here's the deal. I am a non-rooted, non-anything user. Is the only way to see a 24 hour charge to root my phone and flash a custom ROM? He did mention that Froyo would "increase your battery life a lot". Whenever that's going to happen. Sorry to add another thread on battery life, but I want to make an informed decision, as well as know if this rep was just brushing me off with 5-7 hour being "normal" and then handing me an extra battery for free.
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Holy ****!

I'm not a "heavy user" and I turn off all sync and radios until I need them. In this state the phone will still recieve phone calls and text msgs. I turn on either wifi or mobile network access when I want to surf and enable bluetooth when I drive to connect to hand free in the car. I turn everything off when I'm done using each. I have all the power widgets right on my home screen so it only takes a second to turn on/off as needed. Using this way I have gone over 3 days before charging several times. I know this doesn't work for everyone, but I'd rather decide when I'm going to use my phone for what than to be at the beck and call of my phone. YMMV

GaryJ51 said:
I'm not a "heavy user" and I turn off all sync and radios until I need them. In this state the phone will still recieve phone calls and text msgs. I turn on either wifi or mobile network access when I want to surf and enable bluetooth when I drive to connect to hand free in the car. I turn everything off when I'm done using each. I have all the power widgets right on my home screen so it only takes a second to turn on/off as needed. Using this way I have gone over 3 days before charging several times. I know this doesn't work for everyone, but I'd rather decide when I'm going to use my phone for what than to be at the beck and call of my phone. YMMV
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Why don't you just use it normally and charge each night?

Just lazy.

Yeah, I've done all the tips and tricks and charge with power on the power off and charge, wash, rinse, repeat. Nothing works. I'm curious to see if the "free" battery they gave me will last longer.

I was in the same boat as you.
I have a fix and it should work.
turn on always on mobile data and enable auto sync
I posted a thread about getting rediculous battery and someone told me to do that and it worked.
go to settings all the way to the bottom to about phone Ans then choose battery. I bet ur up time and away time are the same. if they are that means something is keeping your phone on even tho the screen is off. doing what I told you above with a restart should fix the problem. also when you restart it its not going to instantly go to sleep leave your phone for like an hour and then check the up and awake time and it should be different. hope that helps.

and enable data when roaming.

Without specifics about what you have the phone doing and what kind of signal you have at home/work/etc, this is a totally irrelevant discussion. In my experience, the only thing that actually kills the battery quickly on the Evo or any other phone is poor cell signal.

I get well over a day on my evo... Running the netarchy kernel along with setcpu profiles. I have my phone set to clock to a max of about 384mhz when the phone screen is off.
I did the battery recharge trick and it helped a lot. I also have my display timeout set to 30 seconds.

5-7 hours before i rooted i would get 10-12 easy since rooting and loaded the.bakedsnackes rom i get avg 19 hours
sent with my evo from a secret place

Dump the Mail app and use Gmail to pop your accounts
If you are using the MAIL app that comes with the OS, that is likely the culprit. Especially if you are syncing more that one account. That can kill the battery very fast.
**try using the gmail app, and set it up so that it pops your pop mail accounts for you and pushes them to your phone. Then disable the built-in mail app and never use it again. This alone should double your battery life. It worked on the Hero and it works in the Evo.**

Do you by any chance use Yelp? I did an experiment last week with Yelp. Without the Yelp service running in the background, I would lose less than 8% of my battery overnight. With the Yelp service in the background, I lost about 50%. I've emailed Yelp to see if they can disable the Yelp service if I don't login to my Yelp account through the app.

Putting my phone on wifi made it so in the morning (4 hrs of low signal then to 50% battery), I put ti on the school's wifi and it was 80%.

tadtam said:
Found on Android Central Forum: (and it works, I get about 15-18 hours)
CHARGING EVO BATTERY FOR MAXIMUM LIFE:
You can charge your battery the following way to see if that helps improve the battery life on your device.
1.Connect the phone to the charger and charge the device until the LED turned green with the phone powered ON
2.Disconnect the phone, and power it OFF.
3.Reconnect the phone to the charger, and charge the device until the LED turns green again.
4.Disconnect the phone, power it ON and then power it OFF.
5.Reconnect the phone to the charger and charge until the LED turns green again.
6.Power ON and use.
Click to expand...
Click to collapse
I would avoid doing this. Lithium-Ion Batteries (found in the Evo and almost all other phones and laptops) can only go through a certain number of charge cycles. This method will not help prolong battery life.

anyone that can help me with battery life?

thiis thing dies on me really quick, at home not as bad when I'm on wifi, but i left this morning from my house, and by the time I got to work 45 minutes later i'm at like 90% and i've done nothing on the phone, not a thing, no text, no voice calls. time without signal is 0.
then of course I get to work and time without signal jumps to like 22%, but still, my blackberry didn't go dead in half a day. i'm running the mixup undervolted kernal and the epic experience rom.
I do run gps and normal phone settings but turning them off is really not an option, especially for my wife that just needs a phone that works and isn't dead before she is out of work, and she doesn't even use the phone.
am I doing something wrong or is the battery life really this crappy?
and it was worse before the new kernal on DI18, and way worse before that.

i use the same set up i got 10 hours under pretty use
try turning gps off at work

So what are you leaving on? 4g? Gps? WiFi? I found that using black wallpaper helps.

wifi and gps are always on, it seems its TWS that is killing it. at like 22% right now. battery is down to 83% right now 2 hours off charger. no voice calls or text calls.

If you are getting a tws of 50% then put your phone into airplane mode for about 10 seconds and then switch it back, you will see a dramatic decease in tws
Sent from my SPH-D700 using XDA App

Here's a few things you can do ...
1) If you have Sprint service in most places, turn off roaming (Settings, Call settings, System select, Sprint). This will disable roaming period so that all roaming services are disabled (i.e. you won't ever see the data roaming guard).
2) Download JuiceDefender beta (this turns off all data, i.e. Wifi / 3G, whenever your phone's screen is off, if you purchase UltimateJuice with it, you can schedule it however you want, and you can choose to allow some apps to always allow data to go through). This saves me a LOT of battery since my screen is usually off.
3) Try the TWS hack mentioned in the earlier post, it should be fixed in DI18, but some people are still seeing high numbers there.
4) If you're rooted, get an app like Autostarts and disable the DRM service from ever running. This was found to be a battery killer.
The biggest battery drainer of them all is the GPS, and then 3G. If you can minimize your uses with those, you will maximize battery life. Also, use Wifi in areas that have it because Wifi hardly drains battery at all compared to 3G. I haven't seen any kernel really that gets much more battery life than stock, so doing these things will help. I love the Epic, but the battery life is a real downer for me too. I've gotten a full day's use (medium use) at times, while some days it hardly lasts at all.

Yes do the airplane mode trick and turn off gps if you are not using it and DO NOT USE JUICE DEFENDER i get 45 hours battery life without it. that app runs constantly in the background and uses more battery. Juice defender is for lazy people that dont know how to find these data and sync settings that are already on the phone or you can download an app that will let you toggle whatever setting you need. Set emails to sync once an hour and if it is really a priority then go into the email account and push refresh.

If you are really getting 45 hours of battery while actually using your phone then will you please share all of the settings that you have that give you this kind of battery life
Sent from my SPH-D700 using XDA App

Use SetCPU, it will turn down the processor while the screen is off. Helped alot with battery life. =)

itsmebryan said:
I found that using black wallpaper helps.
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I wondered if that would do anything. Considering how AMOLED works, dark themes and wallpapers *should* help battery life similar to reducing brightness.

Auto-Sync does some mean damage if your settings are too frequent, too. Try not to use Facebook/Twitter/Myspace integration, if possible, or disable them from syncing automatically, and sync them yourself when you feel the need.

Okay I don't know exactly what I did/didn't do but my battery problem seems to be greatly improved. Lets start with my details. Before 2 days ago. No matter what my use my battery drain would be approx 6-8% an hour. If I took my phone off the charger at 11am by 4pm I would be around 60%. GPS/4g/wifi off. Screen brightness set to lowest. tws not too bad. Using both the tws trick and drm stopped. Usually 2 or 3 phone calls 5-10 texts 5-10 minutes of browsing. I had a task killer installed but never used it to kill tasks just as an app switcher. Even after the di18 update no major difference. So the other day I downloaded an app called system panel. Another task manager. I deleted the task killer widget on my home page but no the app. The first day I took my phone off the charger used it for about an hour then put it back on the charger for about 15 minutes. When I took it off the charger it was at 96%. I opened system panel and killed all apps (necessary services/apps restarted immediately) did tws trick and drm kill. Same use as always after 8 hours my battery was at 80% a 16% drop. That's 2% an hour. The next day I deleted my task killer and over the same period of time I went from 96% to 83% (13% lose over 8 hrs) Only a little over 1% lose an hour. The only difference that I am aware of was the deletion of the task killer widget and then the app completely.

Sh0wNuF said:
If you are really getting 45 hours of battery while actually using your phone then will you please share all of the settings that you have that give you this kind of battery life
Sent from my SPH-D700 using XDA App
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Ditto, I'd like to hear what you're doing too ... even when I do not TOUCH the phone, I cannot get 45 hours. I think you're being a bit optimistic here.

Lmao No. Since di18 it has been great. I use my phone for a lot of stuff too. I have a live wall paper and rss feeds that update. email is set to once an hour. Now dont get me wrong if i play a game then it will suck my battery pretty good like 5% for ten minutes. i have a widget for sync settings. im rooted with ALL SPRINT apps removed i think thats the biggest thing. dont leave gps or other on if you are not using it. i do not have drm removed. i use full brightness. i talk a few times a day and dozens of text and web surfing. no juice defender or task killers. The object for me was to not have any unneccessary stuff run when it doesnt need to. so the phone is set to come alive when the screen is on not off. Check ALL APP and WIDGET SETTINGS FOR HOW OFTEN THEY UPDATE. I DO MEAN ALL. GO THROUGH EVERY APP AND CHECK THEIR SETTINGS ALSO the biggest drain is make sure you sign out gtalk or it will just constantly run. I shoulda posted my screen shot of battery life earlier sorry i will as soon as it reads 1d21h again. prolly tomorrow afternoon.... Rooted,cwm,galaxy rom and kernel, blue minimalism theme

jbadboy2007 said:
Yes do the airplane mode trick and turn off gps if you are not using it and DO NOT USE JUICE DEFENDER i get 45 hours battery life without it. that app runs constantly in the background and uses more battery. Juice defender is for lazy people that dont know how to find these data and sync settings that are already on the phone or you can download an app that will let you toggle whatever setting you need. Set emails to sync once an hour and if it is really a priority then go into the email account and push refresh.
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i do the airplane trick, problem is it seems,when im on wifi, the life is great, battery is perfect, as soon as you go to 3g, it goes to crap, plus the service where I work is spotty as well. I don't know what to do, seriously I can't go through 2 years of great cell service that I can't use because the battery is dead. I mean if I could get through 10 hours it wouldn't be bad, but as it is now, i'm lucky to squeak through about 8 hours. and I have the mixup kernal that is undervolted and supposedly already messing around with the cpu. usually on 3g, no matter where I am pretty much I"m at like 10-20% TWS.

tws is 50% for me. just stop the data with sync settings then it has no reason to draw more. my house and school have terrible service. you are only losing battery life due to data that is going really slow and it takes way more battery to accomplish. i keep wifi on all nite at my house but my sync settings are off. i do this so its not searching for 3g because i have an airrave and wifi. i used the di07 mixup and was not happy with it. galaxy roms have been the least buggy and very stable with the best battery life. That might be my opinion but also genius dog doesnt have an epic yet so i cant trust his stuff when he cant see the impacts with the kernels he is making. but he does know code i will tell you that.

robl45 said:
i do the airplane trick, problem is it seems,when im on wifi, the life is great, battery is perfect, as soon as you go to 3g, it goes to crap, plus the service where I work is spotty as well. I don't know what to do, seriously I can't go through 2 years of great cell service that I can't use because the battery is dead. I mean if I could get through 10 hours it wouldn't be bad, but as it is now, i'm lucky to squeak through about 8 hours. and I have the mixup kernal that is undervolted and supposedly already messing around with the cpu. usually on 3g, no matter where I am pretty much I"m at like 10-20% TWS.
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Holy crap 8 hour battery life is really bad.
Do you have any apps syncing? A weak signal with an app syncing can have a devastating effect on the battery life.
In my school building I get 0-1 signal bars and once I use the stock email app to sync my email every hour with 3G on my battery life is probably a third as good.

How?
jbadboy2007 said:
Yes do the airplane mode trick and turn off gps if you are not using it and DO NOT USE JUICE DEFENDER i get 45 hours battery life without it. that app runs constantly in the background and uses more battery. Juice defender is for lazy people that dont know how to find these data and sync settings that are already on the phone or you can download an app that will let you toggle whatever setting you need. Set emails to sync once an hour and if it is really a priority then go into the email account and push refresh.
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sent from my epic 4g with no 4g

only thing syncing is gmail, I refuse to stop syncing my email, otherwise whats the point of the phone? my blackberry could do push no problem, the iphone could do push no problem.
akei1 said:
Holy crap 8 hour battery life is really bad.
Do you have any apps syncing? A weak signal with an app syncing can have a devastating effect on the battery life.
In my school building I get 0-1 signal bars and once I use the stock email app to sync my email every hour with 3G on my battery life is probably a third as good.
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robl45 said:
only thing syncing is gmail, I refuse to stop syncing my email, otherwise whats the point of the phone? my blackberry could do push no problem, the iphone could do push no problem.
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Inside my building where I get a weak signal I turn off 3G and use the wifi to sync my apps regularly. I get a good wifi signal there.
If I can't get a good 3G signal in the building than there's not much I can do to my phone to make the 3G signal better (I think that's the cause for the battery drain).

Just had the best battery life I've gotten with this phone, and here's how I got it

I'll try to keep this short and sweet. I'm coming from a phone that was married to its charger (an overclocked-to-all-hell Pre) and I constantly micromanaged its battery by turning on data, wifi, and gps only when needed. With the Atrix's huge battery and the upgrade in phones I decided, "What the hell. Crappy battery life with this phone is still better than the best battery life with my old one. Enjoy the features." So I left Wifi, GPS, and Sync on 100% of the time. (I did, however, set all my apps to manual sync.) I have 3 homescreens and very, very few widgets. With a normal day's use this usually netted me about 14-17~ hours with about 2~ hours of screentime. Not the greatest, but amazing comparatively to the Pre.
Today I finally took the time go around and start messing with Tasker and other battery optimizing techniques. Here are a few thigns I did that have already netted me large returns:
The first is the simplest: I changed my screen brightness from Automatically adjusting to a static 15%. Though not the best, this is is bright enough for me in close to all situations and the ones where it's not I just change it back to automatic (this is done via the excellent Widgetsoid).
I use Google Voice for texts and that means I always need a data connection--this throws out things like JuiceDefender because it prevents me from receiving instant notifications. Between home and school I'd say I have a WiFi connection about 85% of the time, so i went into the Wireless preferences and turned my WiFi Timeout to "Never." In case you didn't know, a wifi connection is much more battery friendly than a 3G/4G one. Remaining always connected keeps my phone from cutting the connection and then rescanning for a network to connect to several times a day.
I used a Tasker profile I found online (it was either Reddit or Lifehacker, you can probably find it on both) that turns my GPS on only when I load an app that I've specified I want GPS on. I've known about this for a while but I was hesitant about instituting it because a luxury I wanted was to be able to open up Navigation, Yelp, or Foursquare and have an instant lock-on with my location. After testing today, between being generally located by wifi or cell-tower triangulation, and then having an exact location a few moments later with GPS, I found almost zero difference between leaving GPS on and having it enabled right when the app was opened.
Lastly, I downloaded the newest SetCPU here from XDA (it's free for XDA members. Search for it.) and had it throttle back the processor all the way while the screen is off. In addition, it will have the processor scaled back some when the battery reaches 30% and 10% respectively, and a few other instances such as the phone temperature getting too hot.
I'm laying into bed right now and according to Circle Battery Widget I have 37% battery left after 11 hours of being unplugged. Now, while this doesn't sound very great at all I want to specify that this is with my display having been on for 4 hours and 15 minutes. This is by far the largest battery hog (45% in this case) and there is no way my battery would have lasted before I changed these few things. I don't know how applicable they are to anyone else but they sure did help me and I felt I should let people know.

The battery on this phone is freaking AMAZING!! I use my phone a lot! Prior to this I had the Captivate and I would have to charge it around 3 or 4pm cause it was already at less than 15% and dropping quickly.
On 4/26 this phone lasted me 11 hours with lots of usage around 3 hours of display time.
On 4/27 I unplugged it at 10 and it died today at 1am! That to me is sick!! I charge every night so lasting a whole day of use is fine for me!
Oh and I have my brightness at a bit more than half, which I could have never done on the Captivate lol

my experiences have been rather positive as well.
4/26 unplugged at 12am.
4/27 flashed ginger-blur, restored apps, ubuntu webtop mod, all of the other mods.
@6pm i had 7 hours and 16 minutes of screen time and 1 gb of data used. I was at 15%
my only issue is that i only get battery updates every 10%. any idea why?

songokussm said:
my experiences have been rather positive as well.
4/26 unplugged at 12am.
4/27 flashed ginger-blur, restored apps, ubuntu webtop mod, all of the other mods.
@6pm i had 7 hours and 16 minutes of screen time and 1 gb of data used. I was at 15%
my only issue is that i only get battery updates every 10%. any idea why?
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you need the circle battery widget to get 1% updates. There may be a couple other battery apps that do it as well, not sure.

Ive got a 120 apps installed and get close to 14hrs of battery life with screen on time of 4-5hrs

LancerV said:
Ive got a 120 apps installed and get close to 14hrs of battery life with screen on time of 4-5hrs
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I'm pretty sure the only way I could get 5 hours of screen time is in airplane mode.

Coming from the Pre ( I still love that phone OS) I can testify to glorious battery life on my Atrix. I don't even charge it at night, I run all day long and charge it usually at my home office desk before I go to bed.
I do miss my Pre. My wife has one and it gives me sad puppy eyes every time I look over at it.

Battery Obsession

What is wrong with almost everyone's obsession regarding battery life??
Oh my gosh I'm so tired of hearing everyone saying: I have switched everything off now and still only get 2 days of use.. Why??
If you want a weeks worth of battery life get 1" non-touch black & white screen phone.
If you want a awesome phone get a Galaxy Note, switch everything on, sync your social networks and mail every 10 minutes. Browse the web on the awesome 5.3" screen, play games and enjoy the phone to the full. So what if you need to charge it every 12hours.

Pikkie86 said:
What is wrong with almost everyone's obsession regarding battery life??
Oh my gosh I'm so tired of hearing everyone saying: I have switched everything off now and still only get 2 days of use.. Why??
If you want a weeks worth of battery life get 1" non-touch black & white screen phone.
If you want a awesome phone get a Galaxy Note, switch everything on, sync your social networks and mail every 10 minutes. Browse the web on the awesome 5.3" screen, play games and enjoy the phone to the full. So what if you need to charge it every 12hours.
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2days hahahaha he said 2 days hahahahahahaha
1charge per 12 hours with 4.5-6 hours screen on for surfing and videos 2 hours music to work and back and if not music it is 720 video Dr.House and all the time wifi or 3g on!!! oh and 3-4 hours on a area with 0-2 signal and only G
life battery rocks!!!
Sent from my GT-N7000 using XDA App

2 days 10 hours with light usage (1 hour screen on time, automatic brightness, few 5 minute calls, about 20 notes, apps updating and some browsing over wifi) and still have 70% left.
It depends on the user. It surely has the juice to cope with heavy use. I couldn't be more happy

Bassarnis said:
2 days 10 hours with light usage (1 hour screen on time, automatic brightness, few 5 minute calls, about 20 notes, apps updating and some browsing over wifi) and still have 70% left.
It depends on the user. It surely has the juice to cope with heavy use. I couldn't be more happy
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Cheater you Charged it for sure with a usb and forgot
Sent from my GT-N7000 using XDA App

Braxos said:
Cheater you Charged it for sure with a usb and forgot
Sent from my GT-N7000 using XDA App
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No cheats here, just light usage

bassarnis, be a pal and tell us how the hell you managed that. even with light usage i'd be lucky to get 15+ hrs.

kebong said:
bassarnis, be a pal and tell us how the hell you managed that. even with light usage i'd be lucky to get 15+ hrs.
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Roger that, entering good guy Greg mode.
First of all, the fist charges are important. Once i bought it, i updated it to latest 2.3.6 OTA and started using it till it shut itself off. Then charged it to full while off. Repeated this circle 5-6 times, maybe more. I haven't rooted the device yet. Its 100% stock running KK5. (Europe)
As i am in places where there is wifi available, i switched data off. In wireless and network options, i use "GSM only" mode. I left auto synch, auto brightness and gps on.
Widgets. I use the stock weather, stock digital clock, battery solo widget, stock task killer, stock news and weather, stock calendar. All those spread across 6 homescreens with 39 other app shortcuts on a black/silver background.
About the light usage. 5-6 times a day, i switch wifi on for synching. I read my mail and check my Facebook messages. Once i am done doing whatever i wanted to do that requires internet (update any app that requires updating etc.), i switch wifi off.
Lastly, before going to sleep, i close all active apps using the stock task killing widget and clear the ram. Overnight, i lose 2% battery.

Now that's what I call a battery obsession!
I just use my device as I see fit, and top up charge when I can - I have a Micro USB cable on my keyring, which means I've always got a charging cable on me.
Regards,
Dave
Sent from my GT-N7000 using Tapatalk

Bassarnis said:
Roger that, entering good guy Greg mode.
First of all, the fist charges are important. Once i bought it, i updated it to latest 2.3.6 OTA and started using it till it shut itself off. Then charged it to full while off. Repeated this circle 5-6 times, maybe more. I haven't rooted the device yet. Its 100% stock running KK5. (Europe)
As i am in places where there is wifi available, i switched data off. In wireless and network options, i use "GSM only" mode. I left auto synch, auto brightness and gps on.
Widgets. I use the stock weather, stock digital clock, battery solo widget, stock task killer, stock news and weather, stock calendar. All those spread across 6 homescreens with 39 other app shortcuts on a black/silver background.
About the light usage. 5-6 times a day, i switch wifi on for synching. I read my mail and check my Facebook messages. Once i am done doing whatever i wanted to do that requires internet (update any app that requires updating etc.), i switch wifi off.
Lastly, before going to sleep, i close all active apps using the stock task killing widget and clear the ram. Overnight, i lose 2% battery.
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I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life

Yumunum said:
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
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YEAH! i should be able to have wifi always on without it using any battery. thats right. screw the laws of thermodynamics, it should run for weeks even! having to toggle a button is just way too much work for me!

Yumunum said:
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
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I partly agree with you. But we lack the battery technology to do all that. Not having enough signal coverage alone is enough to drain your battery. In some ways, you adjust yourself so as to keep using the phone for longer periods of time.
I must disagree with the fact that all the above i mentioned are garbage though. I am happy that i figured out a combination that will save me huge amounts of battery. I can still do all the heavy use i need, when i need it. With smart-phones there are options in settings to let you do just that. No-one forces you to do all that, just as no-one forces me to leave everything on.
Having lost 30% battery in 2+ days, means that theoretically if i kept using it like that i would get 7 days of one charge. For example, i know when i will receive an email, from who and when he/she expects me to reply. I hardly get any emails that require immediate response. If someone expects me to reply instantly, they send an sms, or call. Both of the options work fine using gsm only mode.
I also don't find important being logged in facebook 24/7. I 'll log when i have a break, before sleeping and when i wake up. Need to check the weather before leaving for work? Tap on wifi, wait 2 secs for it to connect, click refresh on the widget, done. It doesn't take more than 10 seconds.
I don't rush to turn off wifi or anything. I just use the battery juice and the phone's cpu on demand. The note is indeed a smart-phone, but with all it's features it is reaching laptop territory. I find that treating it as a laptop works better for my needs. Then again, thats just me. If your lifestyle demands all of the note's features on 24/7, then by all means leave them on. There are external 18000 mAh battery packs you can grab.

I'm running Cassies's Lite ROM and I can get between 5 hours and one week on a single charge. Just do everybody a favor and understand that this thing can go into sleep state for days.
If I leave it alone, nothing playing or syncing on the background I lose about 1-2% in 8 hours, so this could go on for days, even a week if you don't touch it.
Of course if the screen is on for only 15 minutes on 2 days, you're not going to have much power used.
During calls screen is off, yesterday I did a 1 hour call and lost less than 10% battery. So you can make several calls on 2 days and lose litlle charge.
If you play a 3D game with screen on at full brightnees, you'll deplete the battery in 5 hours.
It's no difficult to understand. battery life depends on what you do with the thing. Whenever the screen is on, it will consume power. How much depends on the brightness level and the color of the pixels displayed.
Syncing facebook / twitter / e-mail through 3G takes a lot of power too, specially when you're on a low signal area.

Anybody noticed the difference charging the phone while off versus charging it while on.
It looks to me charging while off makes the phone battery last much longer
it also takes much longer time to charge

ChromJ said:
Anybody noticed the difference charging the phone while off versus charging it while on.
It looks to me charging while off makes the phone battery last much longer
it also takes much longer time to charge
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Yes thats a fact, it also happens with my girlfriend's galaxy s2.. With my note the other day, found out that even plugged by usb to the pc with intensive using, wasn't enough to charge the battery % and actually it was decreasing..

William Haven said:
Yes thats a fact, it also happens with my girlfriend's galaxy s2.. With my note the other day, found out that even plugged by usb to the pc with intensive using, wasn't enough to charge the battery % and actually it was decreasing..
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My old iPhone 4 did that . I was downloading an app while having it plugged in into the wall outlet, and the battery just started going down (600+ meg download).
The note is a sloooowww charging device, that's for sure.

i always get over 2 days life out of mine. i never use wifi and i have gps on all the time. But what i do is i have the screen to auto and i use the stock task manager widget. With applications i always use the back button instead of home which 90% of the time closes the app. As a browser i use opera mobile as this has an exit button too. keeping running apps to a minimum seems to help my battery las well.

I'm getting amazing battery life.
And still going strong 11hrs with somewhat light usage and it's nowhere near 50% battery yet hehehe
Sent from my GT-N7000 using Tapatalk

i can get around 5 hours display time, wich is faaaaar better than sgs2. During the night the power consumption is 1% per 5 hours with wireless off or 1%/hour with wireless on. I'm on Rocket rom v12 which rocks!
Sent from my GT-N7000 using xda premium

Yumunum said:
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
Click to expand...
Click to collapse
I'm getting 3.5 days on a charge with moderate use.
I have 4 email accounts that are polled every 60 minutes.
I make a few calls a day and use the browser a little.
What seems to help is doing a force stop on apps that I'm not using like AP Mobile and Yahoo Finance.
Also, I am runnning KL7.

With light usage, few sync's a few calls ((4-5 min) some texts and notes and few minutes of gaming.. I get a around with 16+ hours of usage easily. I'm happy with the battery and the Note can definitely get on with a more aggressive battery usage...