Related
I was wondering, if I constantly am killing running process and they are always reloading (voice input, settings, gmail, market, etc), will this drain my battery faster? I'm at 76% with light use from a full charge and the phones been unplugged for around 4 1/2 hours.
That seems normal. mine usually dies within 6 hours, with all settings off. i think i need a new one. under battery settings it says display used 67 % of my battery life and for display time on it says 28 minutes
I've got my display using 73% followed by live wallpaper with 6%.
I mean Display% being higher just means you were actively using your phone more... or you set your timeout too high.
I don't think the actual restarting of the apps uses more battery vs them just running in the background all the time. Unless for some reason they restart almost instantly and you are constantly mashing the kill all apps button then maybe?
As far as your phone dying in 6 hours, that does not sound right at all. Mine definitely goes quite a bit longer than 6 hours consistently. It is currently at 38% battery after 17 hours 24m, with display having used 46% with 55m24s on. Part of that was while it was full brightness when I was outside. I have been at work though so its largely been sitting on my desk. Even when I first got it and was playing with it a ton it went well over 6 hours on a charge.
Some people do seem to have problems with battery life and I can only assume there's a bunch of bad batteries out there, or they are really hammering it..
I used about 25% in 6 hours today from normal usage* and that's even after driving around for half an hour streaming last.fm over bluetooth via 3G.. Sync switched on, wifi off, twitdroid running in the background. The only special thing I have is the setcpu idle tweak.
* Fair bit of browsing, some twitter, the usual 'ooh look you have a google phone' impromptu demos..
Maybe my battery is not trained yet, but so far, on my 2-days old n1, battey lasts for 4 hours (mid. backlight, no wifi, very little use).
Still running stock rom and not planning on rooting.
What I noticed is that in my battery drain stats show Display contributing to 80% of total drain. That's with display being on mid setting... is that normal? What is yours (esepecially for people with stock roms)?
Are you playing with the phone a lot? Like is your display always on? 4hrs still seems extream to me, I am rooted and runninng a custom rom, but even when I wasnt I never managed to get through the battery that quickly, and I use the phone a lot
Here's what I do to get good battery... I only keep backlight on like the a ****as hair..lol barely unless outside...... widgets are cool n all, but if there constantly updating thats polling your battery, live wallpapers are cool, but a battery drainer, I also keep gps, locations and bluetooth off unless using them, wifi also.. also the background applications setting uses battery but if ya want updating widgets no way around that...
Also look in seetings about phone, battery use and see what's eating your battery, I use my phone hours at a time so my display is most my battery drain which is normal, everything else is like 7 percent or less, mostly 2 or 3 percent. ....
I think thats all I do, but you may keep stuff on like widgets and that unfortunately eats battery..
I am running everything in my Sig. I have had my N1 for about 2 months now right around that. After a 14 to 16hr day with some heavy to mild usage I am still over 50%, but then again I have 3g turned off and i am only on Edge all the time since i am always around WiFi. So i would tell you 4 hours is a bit extreme but hang in there it does get better. I remember being around 25% for the 1st few weeks until it got better. Other wise do what Temperbad said that is the best way to go. Only widget i am running that updates every hour is my Weather one. Turn the screen all the way down unless it other wise needs to be up. I am sure that is what is killing your battery. Mine is always on the lowest setting until i am outside.
Sadly I'm rooted, but I will state my percentage too.
Weirdly, my display usage is only 15% on Paul's Desire ROM. Honestly I dont see how this may be - but that is what it says. My brightness is quite high too..
Yeah, I'm well aware about widgets and battery drain regarding 3G and all that, I've had PDAs for quite a while.
For comparison, my old and ****ty TP2 would drain about 30-40% of its battery with same usage that would drain my N1 dry.
I do remember that LiIons get better in a week or so of usage, but I wanted to hear what you guys are getting. Would love to hear from someone who's just bought an N1 like me.
It's under full warranty, so I'm not worried too much. Just an inconvenience.
DarkDvr said:
Yeah, I'm well aware about widgets and battery drain regarding 3G and all that, I've had PDAs for quite a while.
For comparison, my old and ****ty TP2 would drain about 30-40% of its battery with same usage that would drain my N1 dry.
I do remember that LiIons get better in a week or so of usage, but I wanted to hear what you guys are getting. Would love to hear from someone who's just bought an N1 like me.
It's under full warranty, so I'm not worried too much. Just an inconvenience.
Click to expand...
Click to collapse
I have my display set to "Auto Brightness," have a display timeout of 1 minute, have my email get synced every hour, and also use a live wallpaper.
My display accounts for 63% of battery usage.
Auto brightness will use more battery than keeping it low. Cause its constantly checking light density through the sensor to give it the correct lighting...
temperbad said:
Auto brightness will use more battery than keeping it low. Cause its constantly checking light density through the sensor to give it the correct lighting...
Click to expand...
Click to collapse
I agree, but disabling that, disabling GPS, WiFi, turning off 3G, killing all widgets.. ok yeah my phone will last me 2 hours longer, but it's also boring as hell.
Might as well go pick up a simple nokia for $10 - battery will last for weeks, but what's the point..
Not saying your advise is bad, it's a good idea.. just that all these advices to turn everything off - what's the point of even having a PDA then..
PacoL250 said:
I have my display set to "Auto Brightness," have a display timeout of 1 minute, have my email get synced every hour, and also use a live wallpaper.
My display accounts for 63% of battery usage.
Click to expand...
Click to collapse
Thanks, this info I can use.
temperbad said:
Auto brightness will use more battery than keeping it low. Cause its constantly checking light density through the sensor to give it the correct lighting...
Click to expand...
Click to collapse
I've read otherwise, though I don't think that Auto Brightness is the optimal battery saving setting.
Obviously it's a middle ground between max and low.
Here's a report of my usage today:
~Wifi and 3G both turned on the whole time
~30 mins of MP3s with head phones
~20 mins of 3G tethering over Bluetooth
~40 mins of apps usage (mostly the Browser and the Gallery)
~8 mins of talk time
one 1 min update through the bootloader
have gmail sync turned on, also twidroid syncs every 15 mins
The Battery use app shows:
54% Display (active 6% of the time)
16% Cell standby
14% Phone idle
4% Wifi (active 51.6% of the time)
4% Android System
Right now 14h26' since unplugged, still having 43% of the battery left. The battery meter says 12 more hours until 0%.
All things considered, the battery life is quite good on my N1.
Edit: forgot to mention, the display is set to the middle setting with the Power widget, no auto brightness
pikipirs said:
Here's a report of my usage today:
~Wifi and 3G both turned on the whole time
~30 mins of MP3s with head phones
~20 mins of 3G tethering over Bluetooth
~40 mins of apps usage (mostly the Browser and the Gallery)
~8 mins of talk time
one 1 min update through the bootloader
have gmail sync turned on, also twidroid syncs every 15 mins
The Battery use app shows:
54% Display (active 6% of the time)
16% Cell standby
14% Phone idle
4% Wifi (active 51.6% of the time)
4% Android System
Right now 14h26' since unplugged, still having 43% of the battery left. The battery meter says 12 more hours until 0%.
All things considered, the battery life is quite good on my N1.
Edit: forgot to mention, the display is set to the middle setting with the Power widget, no auto brightness
Click to expand...
Click to collapse
Wow... that's some serious battery life.
Ok, some questions..
1. screen brightness setting?
2. how long have u had that phone (battery) for? Did it improve over time?
3. Is it rooted/flashed or stock rom?
4. you got any syncing widgets running (RSS/twidroid)? Live wallpaper?
Thanks a bunch for your input!
45% - Display
22% - Cell Standby
17% - Voice Calls
5% - Idle
3% - Android System
2% - Wi-fi
Just one comment. I keep Wi-fi and GPS on all day because Wi-fi sleeps when the screen is off and only polls when the screen is on if you're not using it. GPS is only used when your location is required in an application. i dont know why people are always like "you have to turn these off to get good battery life" (Notice wi-fi is 2%)
also i've been running 8 hours with moderate to heavy use (internet, music, phone calls etc) and I'm @ 40%. The drain from 70% - 40% seems to go so slow compared to 100% - 70%.
45% - Display
22% - Cell Standby
17% - Voice Calls
5% - Idle
3% - Android System
2% - Wi-fi
Just one comment. I keep Wi-fi and GPS on all day because Wi-fi sleeps when the screen is off and only polls when the screen is on if you're not using it. GPS is only used when your location is required in an application. i dont know why people are always like "you have to turn these off to get good battery life" (Notice wi-fi is 2%)
also i've been running 13 hours with moderate to heavy use (internet, music, phone calls etc) and I'm @ 40%. The drain from 70% - 40% seems to go so slow compared to 100% - 70%.
ghostrida said:
45% - Display
22% - Cell Standby
17% - Voice Calls
5% - Idle
3% - Android System
2% - Wi-fi
Just one comment. I keep Wi-fi and GPS on all day because Wi-fi sleeps when the screen is off and only polls when the screen is on if you're not using it. GPS is only used when your location is required in an application. i dont know why people are always like "you have to turn these off to get good battery life" (Notice wi-fi is 2%)
also i've been running 8 hours with moderate to heavy use (internet, music, phone calls etc) and I'm @ 40%. The drain from 70% - 40% seems to go so slow compared to 100% - 70%.
Click to expand...
Click to collapse
Sweet, thanks for the info. It seems my battery is also slowly "training" its way closer to these numbers.
DarkDvr said:
I agree, but disabling that, disabling GPS, WiFi, turning off 3G, killing all widgets.. ok yeah my phone will last me 2 hours longer, but it's also boring as hell.
Might as well go pick up a simple nokia for $10 - battery will last for weeks, but what's the point..
Not saying your advise is bad, it's a good idea.. just that all these advices to turn everything off - what's the point of even having a PDA then..
Click to expand...
Click to collapse
Your right... about the updating widgets and wallpaper, they do make the phone funner.. but why need gps on when not using, or bluetooth, or wifi? Just simply turn them on when using...
So much going on with this phone I can say its good pretty decent battery....
Anyone know how to make my gmail sync every hour instead of instantly?
When I got my Nexus my battery was just as poor, but after using it for a couple of weeks I'm getting about 10 hours usage with medium brightness, WiFi, and gps.
So just give it some time and it should fix it itself.
pikipirs said:
Here's a report of my usage today:
~Wifi and 3G both turned on the whole time
~30 mins of MP3s with head phones
~20 mins of 3G tethering over Bluetooth
~40 mins of apps usage (mostly the Browser and the Gallery)
~8 mins of talk time
one 1 min update through the bootloader
have gmail sync turned on, also twidroid syncs every 15 mins
The Battery use app shows:
54% Display (active 6% of the time)
16% Cell standby
14% Phone idle
4% Wifi (active 51.6% of the time)
4% Android System
Right now 14h26' since unplugged, still having 43% of the battery left. The battery meter says 12 more hours until 0%.
All things considered, the battery life is quite good on my N1.
Edit: forgot to mention, the display is set to the middle setting with the Power widget, no auto brightness
Click to expand...
Click to collapse
What battery meter do you use to tell the amount of hours left?
DarkDvr said:
Maybe my battery is not trained yet, but so far, on my 2-days old n1, battey lasts for 4 hours (mid. backlight, no wifi, very little use).
Still running stock rom and not planning on rooting.
What I noticed is that in my battery drain stats show Display contributing to 80% of total drain. That's with display being on mid setting... is that normal? What is yours (esepecially for people with stock roms)?
Click to expand...
Click to collapse
Your phone or battery is defective. Call HTC for a replacement.
I have epic 4g now for a week. Its still not activated, just sits at home connected to wifi - while I use touch pro2, awaiting sero plus on oct 1st.
There is push sync with hotmail and google. I get home and play almost constantly with the phone from 5 to 11pm - testing new apps/games, reading twitter etc - before I get low battery warning.
My biggest surprise was that the SCREEN (supposedly high efficency AMOLED) is draining more than 40% of the battery! Not the wifi, not the cpu or whatever else is inside. This is with default power managment settings.
What numbers do you guys get in the end of the day? What are you using - 3g,4g,wifi,gps,apps?
Sent from my SPH-D700 using XDA App
Sometimes mine goes as high as 72%, and that's the screen alone, and i have the brightness down all the way to zero (and even at zero it's still plenty viewable).
Definitely the screen is the biggest battery drainer. I've NEVER seen anything higher usage than the Display. Its usually in the 60-80% of battery usage.
And I keep the power to the lowest setting on a daily basis.
The screen is always the biggest offender. Usually in the 70%+ range with brightness all he way down. The samoled talk is just marketing bs. Maybe better performance when the screen is black. Unfortunately all black backgrounds happen to be the minority on websites, applications etc.
Display used to be the main offender on my phone (60-70%) but since I upgraded to DI07, Cell Standby is crushing my battery. The airplane toggle doesn't do ****, had to buy a cable so I can plug it in at work just so at the end of an 8hr day I have more than 30% battery left even with JuiceDefender running. Getting pretty frustrated.
kidstechno said:
Display used to be the main offender on my phone (60-70%) but since I upgraded to DI07, Cell Standby is crushing my battery. The airplane toggle doesn't do ****, had to buy a cable so I can plug it in at work just so at the end of an 8hr day I have more than 30% battery left even with JuiceDefender running. Getting pretty frustrated.
Click to expand...
Click to collapse
I have this exact same issue. Cell standby is killing my battery. Right now I have 18% time without signal... it has been as high as 25% before. I never had this issue before DI07.
Cell Standby is 41%, with Display at 32%, time without signal is a whopping 50%, and I get near-full to full bars at work and about 2-3 at home.
my cell standby was over 50% after the update. I went in and changed my call setting>System select and chose "sprint only" which will not allow the phone to roam, but it got rid of this battery drain. I have a lot more battery now. But i will have to turn it back whenever i loose service. There's got to be a better way to avoid this thing always looking for the GSM towers when it's a SPRINT PHONE and should for CDMA unless there's no signal. I don't understand how they allow such a dumb issue to haunt tihs phone.
My current numbers:
Cell Standby: 34%
Phone idle: 25%
Display: 17%
Android System: 10%
Email: 5%
Maps: 3%
Dialer: 2%
Wi-fi: 2%
Android OS: 2%
Cell standby has gone up for me since the update, but my last charge was actually the first time I saw any significant "time without signal", and I think that was because I had 4G turned on all day. I have it turned off now and that number is back to 0%.
I'm learning some tricks to keep the battery charged on this thing. Yesterday I managed to go all day from waking up to going to sleep without charging (around 18 hours, though I rebooted at one point so I'm not sure the actual total) and I still had about 1/5 of my battery gauge left.
I've found wi-fi makes a HUGE difference. I have wi-fi both at home and at work, and that's probably 80% of an average day for me. Wi-fi drains the battery *much* less than 3G.
I have my screen turned down not to 0, but probably 2 ticks over that. I use the notification bar swipe to turn it up or down, so I don't know exactly, I just set it to as dim as I'm comfortable with in any situation. Power mode and auto-brightness are turned off.
I switched my background from the default to one that's very dark. I'm convinced that makes a big difference.
I do use a task killer, but I leave my email running, along with whatever else seems like it should be kept running.
Obviously when you look at percentages, there's always going to be *something* at the top of the list, so it's pointless to constantly try to knock whatever's #1 down to the bottom. Different people use their phones differently, so if someone else has their display at the top, it just means they're looking at it a lot and maybe have it too bright. But no matter what you do, something's always going to have a higher percentage than anything else.
badasscat said:
My current numbers:
Cell Standby: 34%
Phone idle: 25%
Display: 17%
Android System: 10%
Email: 5%
Maps: 3%
Dialer: 2%
Wi-fi: 2%
Android OS: 2%
Cell standby has gone up for me since the update, but my last charge was actually the first time I saw any significant "time without signal", and I think that was because I had 4G turned on all day. I have it turned off now and that number is back to 0%.
I'm learning some tricks to keep the battery charged on this thing. Yesterday I managed to go all day from waking up to going to sleep without charging (around 18 hours, though I rebooted at one point so I'm not sure the actual total) and I still had about 1/5 of my battery gauge left.
I've found wi-fi makes a HUGE difference. I have wi-fi both at home and at work, and that's probably 80% of an average day for me. Wi-fi drains the battery *much* less than 3G.
I have my screen turned down not to 0, but probably 2 ticks over that. I use the notification bar swipe to turn it up or down, so I don't know exactly, I just set it to as dim as I'm comfortable with in any situation. Power mode and auto-brightness are turned off.
I switched my background from the default to one that's very dark. I'm convinced that makes a big difference.
I do use a task killer, but I leave my email running, along with whatever else seems like it should be kept running.
Obviously when you look at percentages, there's always going to be *something* at the top of the list, so it's pointless to constantly try to knock whatever's #1 down to the bottom. Different people use their phones differently, so if someone else has their display at the top, it just means they're looking at it a lot and maybe have it too bright. But no matter what you do, something's always going to have a higher percentage than anything else.
Click to expand...
Click to collapse
How are you able to control the brightness with the notification swipe? I've made it brighter but not dimmer.
Sent from my SPH-D700
So for all the people that have their phone on the lowest brightness, but get a Display usage >50%...are you using your phone that much?
Because I have my display on auto, and my Display usage is a 32%, and that is still enough for it to be #1 on my battery use list.
First, let me get the immature response out of the way: "What sucks my battery? Your MOM!"
Now that that's out of my system, my battery drain is generally caused by the same things as everyone else: screen and TWS. Although I mitigate TWS by using the airplane mode trick which seems to still work for me.
Iilex said:
How are you able to control the brightness with the notification swipe? I've made it brighter but not dimmer.
Click to expand...
Click to collapse
I dunno, I just do. The way the thing works is a little tricky, it seems like it's absolute rather than relative, meaning if your display is already on the dim side, you need to start with your finger way over to the left to take it down the last few ticks. There's only so dim you can make it - the lowest brightness setting would look like a 4 or 5 year old phone at its brightest. That's true regardless of how you dim it. So you may just have it pretty dim and because of the way the notification bar thing works, when you put your finger in the middle, you're making it brighter without meaning to. But if you slide all the way to the left, it'll be as dim as you can make it.
jemarent said:
my cell standby was over 50% after the update. I went in and changed my call setting>System select and chose "sprint only" which will not allow the phone to roam, but it got rid of this battery drain. I have a lot more battery now. But i will have to turn it back whenever i loose service. There's got to be a better way to avoid this thing always looking for the GSM towers when it's a SPRINT PHONE and should for CDMA unless there's no signal. I don't understand how they allow such a dumb issue to haunt tihs phone.
Click to expand...
Click to collapse
+1 to this, after I changed this setting my time without signal is about 3% before it was up in the 50's. Good tip right there
Sent from my SPH-D700 using XDA App
I guess this is a commom issue... Unless epics hardware is sooo optimized and only sips power ;-)
Does anybody have data from other android phones - nexus, droids...?
Sent from my SPH-D700 using Tapatalk
3-4 hours of talk time takes up 70% of my use during a 10-16 hour usage. Second would be my screen.
My screen is 79% and cell standby only 7%
My screen is all the way down, even tho with the new update I notice my screen got dimmer than before.
Sent from my SPH-D700 using XDA App
Since the previous thread on battery life was merged with other threads on totally different topics, I've opened this thread as a place to share tips and experience regarding battery life. I've little time the coming 48 hours, but I will update this thread and make a collection of tips to improve battery life!
So I've taken some measurements to be able to give a more objective analysis!
I've used OSMonitor Goto menu/options/filter (dmesg) Tag filter [D:BATT] for battery readings The I= the battery drain in mAh.
I also used signal strenght info from settings/about phone/network. I used Extended Controls to keep my screen on during the test and control data etc.
I want to use these results as a reference to determine "normal battery drain" and to determine how different variables affect battery life. It would be best to test this on "out of the box setup' to eleminate influence from other aps. I didn't want to hard reset so I guess I've sinned against science. Another variable I've not eliminated is the amount of RAM being used, and this could be important. I'm not perfect
To compare results it would be best to perform test the same as I did. If anyone has a better idea for a test please say so! It would be perfect if some devoloper could make an app that does al these test automaticaly! It would be a great benchmarking tool!
Results so far:
*Standby
3 mAh (on G, data off)
*Screen Brightness
Screen brightness 0% : ~82 mAh (airplane mode on, everything turned off)
Screen brightness 100%: ~200 (idem)
To compare with brightness 0% my Old Touch pro uses 63 mAh with its tiny screen
(Airplane mode, Brightness 0%)
275 MB ram Free: 75-80 mAh
185 MB ram Free: 75-80 mAh
*Network and GPS
All with 0% brightness
G (GSM only): 82 mAh (data off, everything off) - 83db 15 ASU
3G (GSM/ WCDMA Auto): 85 (data Off, eveything off) -85db 13 ASU
Wifi Connected (Wireless G, Full Signal strength, router in the same room) : 150 (sync off, background data off, everything off)
GPS: 125 (GPS Test, airplane mode, everthing off)
*Gaming
Asphalt 5: 310 (airplane mode, everthing off)
Draw your own conclusions! To be continued!
Reserved for updates
Funny i was looking for the old thread! Jus to put a note on it 11 hours since unplugged. Hasnt past 50% battery life yet. Had wifi on all day with hourly sync. Using this morning for XDA forums viewing for about 1 hour. Some bluetooth and as it stands the battery thing shows this.
Display 60%
Android System 15%
Android OS 12%
Cell Standby 6%
Phone idle 5%
Wifi 2%
Note i dont have 3g turned on yet as my provider hasnt given me the internet add on yet.
Well it's now at the stage where I've had my phone for a week, so the battery has had a few good cycles and should have settled down.
I'm still looking for the elusive whole day without a top up charge, doing the things I used to do on my hero.
Things I'm currently trying: Syncing facebook and other non essential things (to me) once a day, 2g only, and running Juicedefender. I also have screen brightness set manually to a lowish level, and have stopped vibration feedback on the keyboard....
Will see what tomorrow brings.
Basil3 said:
Well it's now at the stage where I've had my phone for a week, so the battery has had a few good cycles and should have settled down.
I'm still looking for the elusive whole day without a top up charge, doing the things I used to do on my hero.
Things I'm currently trying: Syncing facebook and other non essential things (to me) once a day, 2g only, and running Juicedefender. I also have screen brightness set manually to a lowish level, and have stopped vibration feedback on the keyboard....
Will see what tomorrow brings.
Click to expand...
Click to collapse
I stopped vibration feedback after day one and have had no problems with battery since, I had completely forgotten about that though. I have a feeling you will be smiling tomorrow. If you think about it having to provide constant stabs of electricity to start a motor all the time must be a huge drain.
Doktaphex said:
I stopped vibration feedback after day one and have had no problems with battery since, I had completely forgotten about that though. I have a feeling you will be smiling tomorrow. If you think about it having to provide constant stabs of electricity to start a motor all the time must be a huge drain.
Click to expand...
Click to collapse
That's what I'm thinking. I would send 100+ Google talk messages a day. All that tapping and vibrating must eat the battery a bit.
Sent from my Desire HD using XDA App
Doktaphex said:
I stopped vibration feedback after day one and have had no problems with battery since, I had completely forgotten about that though. I have a feeling you will be smiling tomorrow. If you think about it having to provide constant stabs of electricity to start a motor all the time must be a huge drain.
Click to expand...
Click to collapse
I've disabled it for the on screen keyboard, is there any other place it needs to be disabled? Like for the Home keys at the bottom?
oddly there is another vibrate option under sound settings, right at the bottom there is an option for Vibrate Feedback when pressing onscreen buttons.
I am going to buy this phone but I was wondering about second screen if it is always on does it drain battery or the impact is negligible
You can set it turn off when you shut the screen off, I have mine set to stay on and haven't noticed any noteworthy drain on my battery, I listen to my headphones all day at work (Ten hours) and the phone is usually still at around 85-90% when I leave.
In a dark room it will have light bleed but besides that it's fine, also if the phone is in your pocket the screen is not on.