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Hello guys,
lately my Nexus One abttery consumption gets more and more consumptive. I dunno why, I already reduced the home screen from 7 became 5 and reduce the widgets too. but the battery life now did't even reach one day.
I read that someone has their nexus one running 3 days with browsing and GPS n Sync ON.
any advice how to conserve battery life?
There are plenty of threads discussing that same question. Basically the answer is that there's no perfect formula. Experiment and see what you can achieve.
Personally I tend to turn off most of automatic syncing stuff, but it's not because of battery life, but rather because I want more control.
Also, if your mobile reception is constantly low, your battery life will be significantly shorter.
heres what i did to increase my battery life.
turn off wifi/bluetooth
i leave my screen brightness at 100% (i like my screen bright) and leave gps on since its only used when gps is required
download a battery saving kernal. im using intersectraven 925mv kernal. less power consumption=less battery used. its been shown that 925mv is the best voltage compared to 800mv/1000mv
download "Task Manager" from the market. use it to set all apps to "kill list" so that everything is killed when you put ur phone on lock/sleep. This app helped me save tons of battery. Power doesnt drain at all when your phone is idle and my phone is at constant 250+/- memory.
other then that my phone has all the widgets on the homescreen and battery is good
d0mo said:
download "Task Manager" from the market. use it to set all apps to "kill list" so that everything is killed when you put ur phone on lock/sleep. This app helped me save tons of battery. Power doesnt drain at all when your phone is idle and my phone is at constant 250+/- memory.
Click to expand...
Click to collapse
I don't suggest doing it, since it brings nothing good and no power saved. If you kill widgets that update themselves - you might as well not put them on the screen, since they do nothing. If you kill system services - you might as well uninstall the programs that run them, since they're not working. And for everything else - you're just wasting the CPU time required to kill and then relaunch programs, and the memory that can be used better.
d0mo said:
heres what i did to increase my battery life.
turn off wifi/bluetooth
i leave my screen brightness at 100% (i like my screen bright) and leave gps on since its only used when gps is required
download a battery saving kernal. im using intersectraven 925mv kernal. less power consumption=less battery used. its been shown that 925mv is the best voltage compared to 800mv/1000mv
download "Task Manager" from the market. use it to set all apps to "kill list" so that everything is killed when you put ur phone on lock/sleep. This app helped me save tons of battery. Power doesnt drain at all when your phone is idle and my phone is at constant 250+/- memory.
other then that my phone has all the widgets on the homescreen and battery is good
Click to expand...
Click to collapse
1+2 = Nonsense.
1 - Kernel
2 - Task Killers cause more problems then they help.
Battery life is simply a function of how much CPU time is being used, how much data is being transferred, and how much the screen is on. Poor reception is another thing to consider, in most cases it's one of the three things above. Of course there are other factors, like how much you're talking on the phone, etc, but it boils down to three major things.
CPU time generally is only a problem when using the phone, games, live wallpapers (particularly 3D ones), and sometimes bad processes or badly designed programs. You can evaluate all of this using System Panel in the market.
How much data is being transferred you can control directly by setting your sync settings, or if you want to isolate it completely, disable syncing on all apps and otherwise use the phone normally. If you have Facebook, Twitter, MySpace, GMail, IM (Gtalk/whatever others), Weather, etc all syncing, it's going to be a lot of random traffic. Setting the phone to EDGE-only will reduce some of the battery usage from this, but controlling the syncing itself IMO is a better option than using EDGE.
Screen of course is how much you are playing with the phone, and I think this is the one that most people have problems with. If you're messing with the phone all day long, yes, it's going to "eat battery", and it's going to be caused from all three things above. CPU from you doing stuff, probably network traffic from you doing stuff, and the power to drive the screen. Some people suggest using black themes or backgrounds. Yes, AMOLED uses more power to drive a bright white than an LCD, and much more power to drive bright white vs black or dark, but think about how much you're staring at the background.. Only on the launcher. Do you stare at the launcher all day? But perhaps if you're reading a book for an extended period it's worth it to set it to white on black, vs black on white. Sometimes you can't control this, such as the browser is (generally) a white background.
I'm no expert, but god I'm tired of hearing nonsense around everything "eating battery".
I see, thanks 4 d advice you all
maybe the good way out is the Kernel flashing.
any recommendation maybe? which kernel are the best?
I don't want to downgrade my 1GHz clock though...
and URL is appreciated
Before anyone accuse me of it, I did, in fact, look through the other battery threads on this forum (and other forums, for that matter), and I've already applied numerous tricks. I managed to get my phone to last roughly 9 hours from my typical usage, which now makes it comparable to other phones I've used in the past.
However, in about a day or two, I'm going to be getting a bluetooth headset...which basically means that I'm going to need to keep the Captivate's bluetooth on 24/7 (or, at least, most of the day). I really don't know how much battery this is going to cost me on the Captivate, so I'm trying my best to make things better now to make things smooth in the future. However, I appear to be at the end of my rope.
I have pretty much gimped the Captivate as much as one could reasonably take (more, I'd dare argue). I cut all of my volume down to half of what it was and I removed most of the quick icons. I also set a completely black wallpaper, I turned off all animation, and I turned the brightness down to its lowest setting.
I honestly don't know how to make it any worse. The SAMOLED screen is basically a meaningless PR term to me now and I'm actually missing phone calls from sheer lacking of hearing my phone ring...despite it being right in my pocket.
Going even further, I also attempted to switch to ADW.Launcher based upon recommendations by others that it increases battery life (I found that it had little to no effect). I also attempted to severely underclock my CPU (down to 200Mhz) based, again, upon other claims that it increases their battery life all the way to as high as 30+ hours on a single full charge.
Somehow, underclocking my CPU actually made the battery die out faster.
Furthermore, I attempted to use programs (SMODA, 2G/3G) which claim they allow me to switch to EDGE because, for some God-forsaken reason, Android doesn’t seem to have any toggle for doing it. Unfortunately, none of them seem to work; rather than switching to 2G, they all just completely disabled data, which, unfortunately, is completely unacceptable to me. So at this point, I only seem to have a few more extreme (from my perspective) options. Once I actually get the bluetooth, I plan to turn off most of the auto-updating apps (email, weather, twitter, etc), and just update them myself periodically. Furthermore, I plan to turn off the GPS location feature once I get my GPS unit.
Beyond the above, though, as I said, I'm at the end of my rope. Once I employ the other tricks, I figure I might be able to stretch battery life to 9.5-10 hours, but I would like to go even further. If anyone could offer me some help, I would highly appreciate it.
if your gonna have a bluetooth headset on disable your ringtone completly that would be meaning less. if your near wi-fi a lot have it connect only though that.
also you can clock the cpu down to 100Mhz along with the GPU.
AND to force 2G/edge read my howto in general
oh the ext2 lagfix can also save you some battery life
xatrekak said:
if your gonna have a bluetooth headset on disable your ringtone completly that would be meaning less. if your near wi-fi a lot have it connect only though that.
also you can clock the cpu down to 100Mhz along with the GPU.
AND to force 2G/edge read my howto in general
oh the ext2 lagfix can also save you some battery life
Click to expand...
Click to collapse
I'm already doing the first sans disabling ringtone. I'm not so sure doing such a thing would be acceptable to me.
As for the underlocking suggestion, as I said, I underclocked the CPU all the way down to 200Mhz and the battery actually drained even faster. I doubt underclocking even further is going to help. Furthermore, I actually did try 100Mhz originally, but the performance was so horrendous that it was unbearable.
As for the lag fix, I already have it. Lastly, I knew about that 4636 technique to switch to 2G already, but, unfortunately, it doesn't appear to work for me. The setting doesn't save and 3G still remains.
EDIT: I actually found a way to make the above work. Simply dial *#*#197328640#*#*, then go Debug Screen > Phone Control > UE State Control > Change RAT to GSM. This will actually force your phone to use GSM only. This seems like the answer to all of my battery problems....except it doesn't work. Once you make the change, the INFO menu reports that it has been changed to 'GSM Only', but data appears to have been disabled. Restarting your phone makes data works again, but the INFO menu reported that data has been reset back to 'GSM/CDMA auto'. Yay.
If you haven't already, turn off GPS when you aren't using it. Use the Power Control widget to help. Make sure all of the things in the power control widget are off unless you are using it. And use advanced task killer if you haven't already.
i say screw underclocking let run at whatever i dont think it makes a difference.
forget advanced task killer, i like auto killer.
leave gps off unless needed, and backround data
switch to 2g when you can.
no live walls of course use dark or black, no updating widgets
i dumped stuff like juice defender, cause with backround data off i dont think it does anything.
flight mode it at night (when sleeping) if not charging
ive been running jh3 (now jh7) with sre. get to work (i run 2g at work)at 9am listen to pandora all day through bluetooth (which is on for 6-8hrs) and wifi (6-8hrs) good amount off browsing bout 30 min of voice calls, some texts email checking, more browsing, some games. on average lately after being unplugged for 13-17 hrs at the end of the day with 20-30% life left,using bout 3hrs of display, 30 min voice calls, bluetooth doesnt use crap bout 3%, media server usually 15%, cell satndby i wanna say 10%, im pretty happy i guess, even though im always lookin for better results, tryin the new sre with undervolting, heard some good things.
still when that seidio 3200 mah battery comes out im gettin it, dont care how fat it makes the phone, things to dang thin as it is, and without some sort of cover its like a wet bar of soap!!
What is your typical daily usage? I have fairly light usage (few games here and there a little music and a good amount of web surfing, app browsing and texting with a few phone calls using speaker phone) and I'm at 28 hours of use with 55% battery.
I have just the typical power saving tricks(gps off, bluetooth off, screen at minimum or 30% and my data doesn't sync automatically), no under clocking or anything. I should point out I'm running a euro galaxy rom and am not ever on a wifi connection.
NotAppropriate said:
What is your typical daily usage? I have fairly light usage (few games here and there a little music and a good amount of web surfing, app browsing and texting with a few phone calls using speaker phone) and I'm at 28 hours of use with 55% battery.
I have just the typical power saving tricks(gps off, bluetooth off, screen at minimum or 30% and my data doesn't sync automatically), no under clocking or anything. I should point out I'm running a euro galaxy rom and am not ever on a wifi connection.
Click to expand...
Click to collapse
Wow you are lucky. Yesterday I got 2 phone calls for a total of 3 minutes. I sent 7 text messages. I surfed the web maybe for 15 minutes. No games. Nothing else major. GPS off. Bluetooth off. Wifi on. Screen at 22%. Only background data I have is email which checks once every hour and a weather widget that refreshes every 6 hours. I got barely 12 hours in before my battery died.
fishgator said:
If you haven't already, turn off GPS when you aren't using it. Use the Power Control widget to help. Make sure all of the things in the power control widget are off unless you are using it. And use advanced task killer if you haven't already.
Click to expand...
Click to collapse
Yes, I'm keeping GPS off, and I'm using ATK already.
NotAppropriate said:
What is your typical daily usage? I have fairly light usage (few games here and there a little music and a good amount of web surfing, app browsing and texting with a few phone calls using speaker phone) and I'm at 28 hours of use with 55% battery.
I have just the typical power saving tricks(gps off, bluetooth off, screen at minimum or 30% and my data doesn't sync automatically), no under clocking or anything. I should point out I'm running a euro galaxy rom and am not ever on a wifi connection.
Click to expand...
Click to collapse
Typical usage for me runs along this line: A lot of web browsing, perhaps 30-45 minutes of music, and plenty of IM. I also use Aldiko to read now and then. Calls do factor into this, but typically only two or three 10-15 minute phone calls.
Truthfully, I simply don't see how it is possible for you to use the phone for 28 hours straight and still have 55% battery. I could lose 30% battery just by leaving my Captivate on stand-by for 30 hours.
I certainly understand the interest in having the best battery life possible.
Are you in a work environment where you cannot plug it to a computer for part of the day?
Fortunately, I am. And I always have it plugged in in the car.
I don't want to have a powerful phone with all the features turned off in order to keep it going.
I dont see how you can get 28hrs @ 55% either, with the kind of usage he was claiming, i wouldnt exactly call that light usage
Sent from my SAMSUNG-SGH-I897 using XDA App
28hrs @ 55% What firmware you runnin
Sent from my SAMSUNG-SGH-I897 using XDA App
ewingr said:
I certainly understand the interest in having the best battery life possible.
Are you in a work environment where you cannot plug it to a computer for part of the day?
Fortunately, I am. And I always have it plugged in in the car.
I don't what to have a powerful phone with all the features turned off in order to keep it going.
Click to expand...
Click to collapse
Well, I do have a work environment where I can keep my Captivate plugged in, but only half of the time. Other times, I need to move. Aside from that, it kind of annoys me to use a phone attached to a wall socket. I prefer to keep my smartphones plugged in only long enough for them to fully charge (or at least charge to 80+%), then unplug them for usage. This is kind of tough for the Captivate considering it takes 3-4 hours to fully charge.
I also fully agree with you on the last point, which is what makes all of this so frustrating.
*Sigh* It's really too bad the Captivate is my first Android phone; it's been kind of a negative experience for me so far. Ironically enough, the one issue that hasn't been a problem for me is the one issue most seem to be having -- GPS performance.
roadrash7 said:
I dont see how you can get 28hrs @ 55% either, with the kind of usage he was claiming, i wouldnt exactly call that light usage
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I am in class for most of the day so the phone is idle most of the time but i only play about 10 minutes of music with about an hour or 2 combined web surfing and games but my phone is still chugging at 39 percent battery life at 38 hours of usage. I guess that qualifies as light usage then.
edit: jm6 with unhelpful kernel and sre
also, you have let the battery die out completely and recharge completely with the phone powered off correct?
NotAppropriate said:
I am in class for most of the day so the phone is idle most of the time but i only play about 10 minutes of music with about an hour or 2 combined web surfing and games but my phone is still chugging at 39 percent battery life at 38 hours of usage. I guess that qualifies as light usage then.
edit: jm6 with unhelpful kernel and sre
also, you have let the battery die out completely and recharge completely with the phone powered off correct?
Click to expand...
Click to collapse
I'm honestly shocked at your usage. Am I reading right that in the 38 hours since you last charged it, you only used it for 10 minutes of music and a combined 1-2 hours of web surfing/games? I wouldn't call that light usage. I would call that hardly any usage.
Under such conditions, I can see why your battery life lasts so long.
I don't see why you can't get a days worth of usage out of your phone. Cell phone calls use the most battery - that is why the phone is rated at about 5 hours of talk time. This would be in the best signal area. If you are in a lower signal environment (especially in a heavy building all day) you will see faster battery drain.
I am not sure why you are bothering with BT if you are only talking on 2 or 3 calls - but if you take 3 15 minute calls that is at least 15% of your battery - the only way to change this is force the phone to Edge.
I would not lower ringtone volume - that is not a big battery saver in the grand scheme of things and you are missing calls - not a good trade off. If you are doing a lot of web surfing, go WiFi instead and you will see big battery imrovements. 3G voice and data suck battery - it doesn't matter if you have android or iPhone.
If you put your phone in Airplane mode you can go for 5 days between charges with minimum use.
The radio does kill the battery, I don't think the battery usage screen really depicts this. Since I've gotten my captivate my old BB Bold (at the time would only last 3 hours due to its degraded battery) lasts days on end with its radio disabled while sitting in my desk. I'd love to see native 3G toggle or at least a captivate catered app, I'd even pay for the latter
Sent from my SAMSUNG-SGH-I897 using XDA App
alphadog00 said:
I don't see why you can't get a days worth of usage out of your phone. Cell phone calls use the most battery - that is why the phone is rated at about 5 hours of talk time. This would be in the best signal area. If you are in a lower signal environment (especially in a heavy building all day) you will see faster battery drain.
Click to expand...
Click to collapse
Well, that rating is probably the battery life if your decide to talk on your phone for five hours straight. I really, really doubt it takes into consideration the in-between times (games, apps, and, of course, web surfing). Phone calls undoubtedly takes the most amount of battery, but Internet usage is probably second place and, as said, I use that fairly often.
Lastly, I'm not planning to use my bluetooth exclusively for phone calls. I'm going to use it for calls, listen to music on the Captivate, chat on my PC, and so on. It's multi-usage.
Next, you're missing a lot of the things I said. As I said, I already tried numerous methods to force the phone into 2G; not one of them works (they either don't work at all or actually completely disable my data). I'm already using wifi as opposed to 3G as much as possible.
Lastly, I'm sorry, but using airplane mode to save battery is not acceptable. If I'm even willing to consider this, then I might as well just turn off the Captivate to save battery.
I just read something about an external sd card being another battery drain.
Took mine out and we will see. I was already getting through the day with about 20%left.
8525Smart said:
Well, that rating is probably the battery life if your decide to talk on your phone for five hours straight. I really, really doubt it takes into consideration the in-between times (games, apps, and, of course, web surfing). Phone calls undoubtedly takes the most amount of battery, but Internet usage is probably second place and, as said, I use that fairly often.
Lastly, I'm not planning to use my bluetooth exclusively for phone calls. I'm going to use it for calls, listen to music on the Captivate, chat on my PC, and so on. It's multi-usage.
Next, you're missing a lot of the things I said. As I said, I already tried numerous methods to force the phone into 2G; not one of them works (they either don't work at all or actually completely disable my data). I'm already using wifi as opposed to 3G as much as possible.
Lastly, I'm sorry, but using airplane mode to save battery is not acceptable. If I'm even willing to consider this, then I might as well just turn off the Captivate to save battery.
Click to expand...
Click to collapse
I didn't meant to suggest that airplane mode was an alternative, just to point out that the cell radio for Voice and Data is your biggest drain.
If you are going to use the phone for almost an hour of talk time, heavy web surfing and BT connections for tethering then your battery life will be limited. If you are using BT to chat on your pc - then maybe tethering with USB would be better - you could charge at the same time.
Your other option is to get a spare battery.
And I did read what you had to say, I just didn't realize how much you were expecting your phone to do. The only numbers your provider were around talk time.
I use my phone a lot and I charge it every 24 hours - I am more then satisfied - but I know that if a spend an hour or more talking on it and bunch of web surfing that I will have to think about charging it as my usage increases.
There is a way to force the phone into 2G. It isn't very user friendly. I have tested this and it works great.
Enter the Phone app.
Dial *#*#197328640#*#*
Select [1] DEBUG SCREEN
Select [8] PHONE CONTROL
Select [4] UE STATE CONTROL
If you want 2G, select:
[3] CHANGE RAT TO GSM
If you want 3G, select:
[2] CHANGE RAT TO WCDMA
Hello everyone, im here to share my future experiences with seeing just how far i can push my battery and share how i did it with everyone.
Backstory:
I'm going hiking in Virginia tomorrow for a week, and would really like to have a camera without carrying extra devices, so..... its time to mod my nexus 5 as low power as possible!
here are some of the "prep steps" that ive done in order to obtain my battery life, i'll update the thread to let everyone know how it worked out!
Rooted
CM stable installed. (up to date as of this post)
Screen Brightness set to low as possibe.
Elemental X Kernel installed (Using TricksterMOD, these are my settings)
Multicore power saving = 2
CPU Freq. Lock= Min( 652800) Max( 652800) Max.screen off(300mhz)
Google Now/voice anything turned off
Home screen has only one page
Airplane Mode
Greenify Installed, Using Xposed Module for advanced/better control
Hibernating almost everything 3rd party, esp things like Facebook,KiK etc.)
BootManager xposed module installed, everything disabled that isn't needed.
Installed gsam for more meaningful data logging.
Unchecked Auto Sync Data in the Data Usage settings
Changed CPU clock min/max 652800
Installed Deep sleep battery saver Xposed module. (on slumber profile) buts phone into deep sleep when screen is off.
If i remember anything else i did on here, i'll post it.
(sorry its taking so long for replies/updates, "new user status" prevents my posts 5 minutes in between.) (hard to believe, been a member since 2011, just lurked alot.)
*May have found lower limit on the CPU, no instability as of yet, however phone is acting a bit erratic, looking into this currently. (booting takes FOREVER. this is a problem.)
*Trickster seems to pick and choose sometimes whether it wants to listen to me, sometimes CPU freq. on sreen off is changing to 652800 on its own. :/ anyone know of a way to get it to respect my settings?
*Changed CPU freq. to min max 652800 based on advice of the community.
Usage scenario:
I'll be using my phone mainly for pictures throughout the trip and possibly listening to some music, anytime its not in use, ill be turning it outright off, however, id really like to see just how far i can take this.
Anyone have any other suggestions for longevity?
gh0stpirate said:
Hello everyone, im here to share my future experiences with seeing just how far i can push my battery and share how i did it with everyone.
Backstory:
I'm going hiking in Virginia tomorrow for a week, and would really like to have a camera without carrying extra devices, so..... its time to mod my nexus 5 as low power as possible!
here are some of the "prep steps" that ive done in order to obtain my battery life, i'll update the thread to let everyone know how it worked out!
Rooted
CM stable installed. (up to date as of this post)
Screen Brightness set to low as possibe.
Elemental X Kernel installed (Using TricksterMOD, these are my settings)
Multicore power saving = 2
CPU Freq. Lock= Min(960000) Max(stock) Max.screen off(157440)
Google Now/voice anything turned off
Home screen has only one page
Airplane Mode
Greenify Installed, Using Xposed Module for advanced/better control
Hibernating almost everything 3rd party, esp things like Facebook,KiK etc.)
BootManager xposed module installed, everything disabled that isn't needed.
If i remember anything else i did on here, i'll post it.
Usage scenario:
I'll be using my phone mainly for pictures throughout the trip and possibly listening to some music, anytime its not in use, ill be turning it outright off, however, id really like to see just how far i can take this.
Anyone have any other suggestions for longevity?
Click to expand...
Click to collapse
Don't forget Google Now and Auto Syncs. (uncheck Auto Sync Data in the Data Usage settings).
Check out this thread here for some more suggestions.
I've been able to push it pretty far even with an active internet connection, though most of the usage comes from reading Reddit or forums with Tapatalk. That was on stock with no root access.
It's possible that it will take less power to just put your phone to sleep when not using than booting it up every time you need it. Depends on how often you boot though.
bblzd said:
Don't forget Google Now and Auto Syncs. (uncheck Auto Sync Data in the Data Usage settings).
Check out this thread here for some more suggestions.
I've been able to push it pretty far even with an active internet connection, though most of the usage comes from reading Reddit or forums with Tapatalk. That was on stock with no root access.
Click to expand...
Click to collapse
Thanks for the tips! heres what i changed:
installed gsam for more meaningful data logging.
unchecked Auto Sync Data in the Data Usage settings
changed CPU clock min/max 300mhz
Zainiak said:
It's possible that it will take less power to just put your phone to sleep when not using than booting it up every time you need it. Depends on how often you boot though.
Click to expand...
Click to collapse
I was thinking that as well, however it would be difficult to find that "mid point" if i had an emergency backup of battery bank to test this theory, i would. However, im going to be stuck in the mountains and would rather have the ability to take the pictures i want rather then pure data log expedition. Great insight/hivemind though.
gh0stpirate said:
I was thinking that as well, however it would be difficult to find that "mid point" if i had an emergency backup of battery bank to test this theory, i would. However, im going to be stuck in the mountains and would rather have the ability to take the pictures i want rather then pure data log expedition. Great insight/hivemind though.
Click to expand...
Click to collapse
Based off my experiments, it takes less than 1% of battery to reboot the phone though I would guess somewhere in the 0.5% range. In airplane mode with all of these functions disabled and in deep sleep, 1% would probably get you 6 hours of idle time or even more. Therefore I would only power it down if you won't be using the phone for at least the next 6 hours. Rough estimations of course, I think either way it would be pretty similar.
If the phone is not powered down you might be inclined to use more than you would otherwise.
bblzd said:
Based off my experiments, it takes less than 1% of battery to reboot the phone though I would guess somewhere in the 0.5% range. In airplane mode with all of these functions disabled and in deep sleep, 1% would probably get you 6 hours of idle time or even more. Therefore I would only power it down if you won't be using the phone for at least the next 6 hours. Rough estimations of course, I think either way it would be pretty similar.
If the phone is not powered down you might be inclined to use more than you would otherwise.
Click to expand...
Click to collapse
Extremely interesting/relevant! do you still have any screenshots or data logs on these restarts anymore?? if thats the case, then yes, id only turn it off while im sleeping then!
gh0stpirate said:
Extremely interesting/relevant! do you still have any screenshots or data logs on these restarts anymore?? if thats the case, then yes, id only turn it off while im sleeping then!
Click to expand...
Click to collapse
Unfortunately I do not, just speculation based off what I've seen when monitoring current draw (using Current Widget) and the battery percentage before and after a reboot.
I do have shots demonstrating low idle drain with Auto Syncs and Locations disabled. On average I'd say my drop is about 1% over 5 hours of deep sleep, but it's always hard to tell because there's no way for me to know exactly when it drops without active logging which would interfere with the phone's deep sleep.
Generally speaking a reboot uses ~1% of your battery. If you're locking your CPU to run at only 300mhz I would just leave it on the entire time. Especially if mobile data is off and so is WiFi. Make sure you go into Settings > WiFi > *Touch the 3-dot menu* > Advanced > Disable "Scanning Always Available". I lose about 1-2% in airplane mode overnight over clocked with high quality sound driver from Viper4Android. Plus the Google now hotword activated everywhere but lock screen.
A while back I did a test with my N5 to purposely nerf its power to see how long of a SoT I could get with it. I did pretty much everything you mentioned in the OP. Locked max CPU frequency to match min. Lowest screen brightness, airplane mode, etc. I was able to get over 12 hours SoT. So if the N5 can get 12 hours with the screen on using the same setup you plan in using with the phone getting nice and warm... I don't think a week standby time is too farfetched as long as it's idle most of the time except for pictures. Depends on how much music you listen to I guess. Only problem is even with music saved on the device itself, running at 300mhz you're going to run into skips and pops. Especially when the screen is off. Music playback will be kinda iffy.
Good luck though and let us know how it goes.
Edit: Actually I was mistaken. I just disabled everything like location, sync, etc. Default kernel parameters except switching to ondemandplus governor. This was on an older release of Uber kernel. 12+ hours SoT with ~30% battery remaining!
Here's my post;
http://forum.xda-developers.com/showthread.php?p=52133394
You'll suffer Lag I would think with CPU at 300mhz max. And likely use more battery than your saving with the phone struggling to process anything.
May have instability issues too. I'd rethink that.
KJ said:
You'll suffer Lag I would think with CPU at 300mhz max. And likely use more battery than your saving with the phone struggling to process anything.
May have instability issues too. I'd rethink that.
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Click to collapse
I agree, but I think that if the phone isn't used at all besides some pictures here and there, it should be fine. If he plans on music playback he's going to have to raise the max frequency, no question. Music playback won't work reliably that low. I don't think lag will be an issue for him considering what's he's trying to accomplish with the phone, but I can't speak to instabilities with 300mhz as max as I've never tried it.
RoyJ said:
I agree, but I think that if the phone isn't used at all besides some pictures here and there, it should be fine. If he plans on music playback he's going to have to raise the max frequency, no question. Music playback won't work reliably that low. I don't think lag will be an issue for him considering what's he's trying to accomplish with the phone, but I can't speak to instabilities with 300mhz as max as I've never tried it.
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Currently Using Apollo music player, can confirm Zero issues using music playback, confirmed CPU freq. using cpu frequency app. most of these things are using hardware decoders
RoyJ said:
I agree, but I think that if the phone isn't used at all besides some pictures here and there, it should be fine. If he plans on music playback he's going to have to raise the max frequency, no question. Music playback won't work reliably that low. I don't think lag will be an issue for him considering what's he's trying to accomplish with the phone, but I can't speak to instabilities with 300mhz as max as I've never tried it.
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Click to collapse
But if the phone is sleeping soundly as it should.... The max CPU is irrelevant if not being used. The lag and strain to run processes may hurt a lot though.
You let the music play while the screen was off for a few minutes or did you just play it for a few seconds? I have music stutter on screen off with frequencies higher than 300mhz. I get it with 729mhz. If it doesn't happen to you, awesome. Not sure why though. Do you have time to purchase an OTG charger? Might be worth looking into and they aren't that expensive.
http://www.amazon.com/Best-Sellers-...-Phone-Battery-Packs/zgbs/wireless/7073960011
Currently listening with screen off/on full songs. No issues. no time to purchase an OTG charger however :/
Updated main post to reflect newest enhancements.
Trickster seems to pick and choose sometimes whether it wants to listen to me, sometimes CPU freq. on sreen off is changing to 652800 on its own. :/ anyone know of a way to get it to respect my settings?
It can be done
Sent from my Nexus 5 using XDA Free mobile app
I seem to remember a thread somewhere on xda regarding a CPU's "race to finish". Basically a cpu will work as much as it can (or better said "is allowed) to finish each task after which go to a low power state, like a marathon runner accelerates on certain portions and then "coasts" to conserve energy or a a car running on a near empty gas stank. Since you have a couple of days left I would try raising the frequency (600,800 and 1000) and see what happens to the power drained. It would definitely help with usability, as well as enable using photosphere or panorama ( which take quite a few seconds even at full speed to process) if needed. If the power drain would increase by less than 10% I would call that an acceptable trade-off.
While there is nothing wrong with finding the limit of your device, I think that an external battery pack would be a much better solution. There are ones available for less than $20 that could fully charge your device twice,
Flukzr said:
I seem to remember a thread somewhere on xda regarding a CPU's "race to finish". Basically a cpu will work as much as it can (or better said "is allowed) to finish each task after which go to a low power state, like a marathon runner accelerates on certain portions and then "coasts" to conserve energy or a a car running on a near empty gas stank. Since you have a couple of days left I would try raising the frequency (600,800 and 1000) and see what happens to the power drained. It would definitely help with usability, as well as enable using photosphere or panorama ( which take quite a few seconds even at full speed to process) if needed. If the power drain would increase by less than 10% I would call that an acceptable trade-off.
While there is nothing wrong with finding the limit of your device, I think that an external battery pack would be a much better solution. There are ones available for less than $20 that could fully charge your device twice,
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I remembered a discussion along those lines, ill bump the freq. to 652800 min max, and update the main post. An external pack would be great, but i unfortunately just don't have the cash at the moment. between the trip and i just ordered a triple monitor stand and a new wifi usb to play with nethunter
gh0stpirate said:
Screen Brightness set to low as possibe.
Airplane Mode
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This is basically all you need, the phone will idle for a week or so in airplane mode.
I'm at the end of my rope struggling with this battery. My average sot is 3.5 to 4 hours and I cannot seem to improve that. I've tried everything. Romming, disabling everything, running clean installs, no apps, etc. I think I've wiped this phone more than my..... Probably 10 times trying to improve this battery life. In 2 weeks.
I have wugs kit installed. I will match your settings, I will go appless, I'll root, remove stock apps, I'll do whatever you tell me to. I don't want to go back to my z3 but I need some decent sot in my life.
Just looking for one person with stellar battery life and a little bit of time.
FMMFL said:
I'm at the end of my rope struggling with this battery. My average sot is 3.5 to 4 hours and I cannot seem to improve that. I've tried everything. Romming, disabling everything, running clean installs, no apps, etc. I think I've wiped this phone more than my..... Probably 10 times trying to improve this battery life. In 2 weeks.
I have wugs kit installed. I will match your settings, I will go appless, I'll root, remove stock apps, I'll do whatever you tell me to. I don't want to go back to my z3 but I need some decent sot in my life.
Just looking for one person with stellar battery life and a little bit of time.
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3.5 to 4 hours sot? or the battery in general even the phone is sleep?
My average sot is 3.5 to 4 hours.
You borrowing someone else's settings isn't going to do anything because everybody uses their phone differently. Just because you get 3.5 - 4 hours of sot doesn't mean anything because your cellular signal is going to be different to other users, the better cellular signal you have the less battery it'll drain (and vice versa), if you're on WiFi all day then your battery life will be better.
As a good start, I'd recommend getting a app such as BetterBatteryStats to check for any apps that can be causing wakelocks.
Flash a custom kernel such as LeanKernel and underclock the phone's CPU/GPU frequency while disabling mpdecision.
Download App Ops (unless your ROM has it embedded) and deny permission to "Keep Awake" for Google Play Services. Google Play Services drain battery when having Keep Awake permission.
I've tried bbs, even posted logs in the main battery thread, but nothing ever sticks out.
I've tried lean kernel on rasta rom. That's how I got the actual four hours. I'm also on wifi all day, every day. Probably 99% total time is on wifi.
But right now my phone is a clean slate and I'm looking to borrow settings.
FMMFL said:
I've tried bbs, even posted logs in the main battery thread, but nothing ever sticks out.
I've tried lean kernel on rasta rom. That's how I got the actual four hours. I'm also on wifi all day, every day. Probably 99% total time is on wifi.
But right now my phone is a clean slate and I'm looking to borrow settings.
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You're not listening to what I said. You cannot just borrow someone's settings, it doesn't work that way because there is no universal setting that works for everybody. Perform the two other battery tips that I've mentioned.
Flash LeanKernel B10 and disable mpdecision and underclocking your CPU/GPU frequencies to a lower clock such as 1.5 GHz max CPU and 389 max GPU will help significantly as well as the Google Play Services permission deny as well as lowering screen off max freq to 960MHz or 1.2GHz.
Using black/dark backgrounds help as well since N6 is a AMOLED screen. Whites consume more battery, disable ambient display as well.
Don't use Gapps that include all the Google bloatware with Google+ etc. If you have BBS, then you aren't looking at it right. You need to look at partial wakelocks as well as alarms.
Greenify helps with apps that you need but consume a lot of battery (e.g. Facebook)
Disable sync for Google for the apps you don't need.
Make refresh interval for your apps longer or refresh manually (e.g. Twitter, weather apps)
FMMFL said:
I've tried bbs, even posted logs in the main battery thread, but nothing ever sticks out.
I've tried lean kernel on rasta rom. That's how I got the actual four hours. I'm also on wifi all day, every day. Probably 99% total time is on wifi.
But right now my phone is a clean slate and I'm looking to borrow settings.
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Click to collapse
4 hours of sot is not bad. Mine is the same as you. The only thing that made me not returning that phone is the fast charging. This thing is fast I had a note 4 and it was not charging fast like this one. So battery is not a problem for me when I can put my phone on the charger for 15 min and get 50%.
zephiK said:
You're not listening to what I said. You cannot just borrow someone's settings, it doesn't work that way because there is no universal setting that works for everybody. Perform the two other battery tips that I've mentioned.
Flash LeanKernel B10 and disable mpdecision and underclocking your CPU/GPU frequencies to a lower clock such as 1.5 GHz max CPU and 389 max GPU will help significantly as well as the Google Play Services permission deny as well as lowering screen off max freq to 960MHz or 1.2GHz.
Using black/dark backgrounds help as well since N6 is a AMOLED screen. Whites consume more battery, disable ambient display as well.
Don't use Gapps that include all the Google bloatware with Google+ etc. If you have BBS, then you aren't looking at it right. You need to look at partial wakelocks as well as alarms.
Greenify helps with apps that you need but consume a lot of battery (e.g. Facebook)
Disable sync for Google for the apps you don't need.
Make refresh interval for your apps longer or refresh manually (e.g. Twitter, weather apps)
Click to expand...
Click to collapse
Thanks for your help.
I've installed lean kernel b10, installed appops (and disabled gp services wake), disabled google syncs I don't use, underclocked CPU/GPU to your recommended values with kernel tweaker, installed a pure black wallpaper. But I do not see where I disable mpdecision.
FMMFL said:
Thanks for your help.
I've installed lean kernel b10, installed appops (and disabled gp services wake), disabled google syncs I don't use, underclocked CPU/GPU to your recommended values with kernel tweaker, installed a pure black wallpaper. But I do not see where I disable mpdecision.
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You have to use a app such as trickster mod which you can find it on the play store. Set the cpu gpu mpdecision as well as other kernel settings there.
Don't forget to flash the set min mpdecision zip from the lean thread so the gpu cpu frequencies stick.
Sent from my Nexus 6 using Tapatalk
FMMFL said:
I've tried bbs, even posted logs in the main battery thread, but nothing ever sticks out.
I've tried lean kernel on rasta rom. That's how I got the actual four hours. I'm also on wifi all day, every day. Probably 99% total time is on wifi.
But right now my phone is a clean slate and I'm looking to borrow settings.
Click to expand...
Click to collapse
on wifi is when i get my worst battery life. wifi is like your network signal quality, it can be great quality, and it could be lousy quality. the worse the quality of your wifi signal, the worse your battery will be, no matter what. not using, i can lose 10-15% battery on wifi in about an hour. yes, not doing anything with the phone at all. on my network signal, i easily get 6h+ sot a cycle. so, repeating, your issue is probably your wifi.
simms22 said:
on wifi is when i get my worst battery life. wifi is like your network signal quality, it can be great quality, and it could be lousy quality. the worse the quality of your wifi signal, the worse your battery will be, no matter what. not using, i can lose 10-15% battery on wifi in about an hour. yes, not doing anything with the phone at all. on my network signal, i easily get 6h+ sot a cycle. so, repeating, your issue is probably your wifi.
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Interesting. What kind of router are you using? I have a netgear R6300 which has been solid in every other aspect of wifi.
I had my sim out of my phone yesterday while I used my Z3 and noticed, when I picked it up later in the day, it had used about 1% every three hours. This was turned on, connected to wifi, with my usual apps running. So it seems like my problem would be the opposite. Seems like I run into issues once I pop my sim into it.
FMMFL said:
Interesting. What kind of router are you using? I have a netgear R6300 which has been solid in every other aspect of wifi.
I had my sim out of my phone yesterday while I used my Z3 and noticed, when I picked it up later in the day, it had used about 1% every three hours. This was turned on, connected to wifi, with my usual apps running. So it seems like my problem would be the opposite. Seems like I run into issues once I pop my sim into it.
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well, then your wifi is much better than what i have around, for sure. what do you keep your brightness at? that could also make a huge difference in battery life. i keep mine around 15-20%. if i raise it to about 40-45%, ill get about an hour less screen on time.
simms22 said:
well, then your wifi is much better than what i have around, for sure. what do you keep your brightness at? that could also make a huge difference in battery life. i keep mine around 15-20%. if i raise it to about 40-45%, ill get about an hour less screen on time.
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Yeah I definitely wouldn't suspect the wifi at this point but I will try to run tomorrow without it to see if anything changes.
I usually have my brightness around 40% but today it is down closer to 25% while I test the changes I've made.
Morning all.
Something that has been slightly bothering me since I got this phone....it has a massive battery, it can be heavily customised with roms, xposed modules, magisk modules and all manner of tweaks. Probably one of the most open and dev-friendly devices I've ever had.
Yet, no matter what I do the only way I have ever been able to get more than 2 days out of a battery is to literally not use the phone.
I have had devices in the past such as Xperia Z3 Compact, S7 Active and others with smaller battery that were easily able to push 3 days with regular use. Hell, the Z3C was able to get up to 5 days with a little bit of trickery turning off radios when not in use etc.
Is the extra diagonal inch of screen realestate really enough to destroy the battery longevity? Typically with normal usage I am seeing 2 days with about 4.5 hours of screen-on time.
I've experimented with just about everything to push this out including no official facebook apps, decreased resolution, medium power-saving mode, kernel tweaks (currently using TGP rom and kernel), auto-sync turned off. Going beyond this I feel like you may as well just use a push-button device.
Any devs care to comment? What is the main factor that eats the battery on the Note 9? Is the exynos processor just not that power-efficient? Am I missing some hidden gem?
I guess the next step would be to transition to an AOSP based rom where the customisation is not constrained by baked-in samsung features but again, this is giving up a lot including proper s-pen functionality.
I recently kitted out an LG V30+ for my wife and it is just insane to me that a phone which only has a 3300mah battery can get the same life as the Note9 or better.
Is there some strategy I have missed or is this really the best we can hope for? Seems like an extremely inefficient use of 4000mah to me.
bandario said:
Morning all.
Something that has been slightly bothering me since I got this phone....it has a massive battery, it can be heavily customised with roms, xposed modules, magisk modules and all manner of tweaks. Probably one of the most open and dev-friendly devices I've ever had.
Yet, no matter what I do the only way I have ever been able to get more than 2 days out of a battery is to literally not use the phone.
I have had devices in the past such as Xperia Z3 Compact, S7 Active and others with smaller battery that were easily able to push 3 days with regular use. Hell, the Z3C was able to get up to 5 days with a little bit of trickery turning off radios when not in use etc.
Is the extra diagonal inch of screen realestate really enough to destroy the battery longevity? Typically with normal usage I am seeing 2 days with about 4.5 hours of screen-on time.
I've experimented with just about everything to push this out including no official facebook apps, decreased resolution, medium power-saving mode, kernel tweaks (currently using TGP rom and kernel), auto-sync turned off. Going beyond this I feel like you may as well just use a push-button device.
Any devs care to comment? What is the main factor that eats the battery on the Note 9? Is the exynos processor just not that power-efficient? Am I missing some hidden gem?
I guess the next step would be to transition to an AOSP based rom where the customisation is not constrained by baked-in samsung features but again, this is giving up a lot including proper s-pen functionality.
I recently kitted out an LG V30+ for my wife and it is just insane to me that a phone which only has a 3300mah battery can get the same life as the Note9 or better.
Is there some strategy I have missed or is this really the best we can hope for? Seems like an extremely inefficient use of 4000mah to me.
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Click to collapse
This is what you get when you use a high performance chip.
If it was like cars.. just because the gas tank is big (battery) doesn't mean that the engine won't consume the fuel faster than a more Efficient engine (cpu) with less power.
Other phones might be able to last 3 days, but they also dont have the performance capabilities. Turn on extreme power saving and see how long the phone lasts ...
I'm using stock unbranded ROM. I also adp uninstalled all the Facebook system apps (devil-ware). With Pie + OneUI + Night mode + Dark UI apps, it's the first time I love stock. I bet your non-stock ROM + TGP is the culprit.
I charge nightly on a wireless charge pad; easy on the battery. In Device Care, I run the default "Optimized" setting. I use it moderately for the first 12 hours of my working day (meetings phone calls), and I often have 85-90% charge left at that point. I then use the phone HEAVILY for the next 4 hours (watching video, reading, etc.), and at that point I am never below 50% (often 60-70) when I put it back on the charge pad, go to sleep, and start the whole thing over again. I have the US version (Snapdragon), darkmode and auto brightness is always on, and I use Automate to toggle my wifi off when not home and back on when home. Other than that, I have gps, bluetooth, and phone data always on. Bluetooth pairs with my watch and car, and gps auto-toggles by the kernel whenever I load maps or whenever my Life360 app updates my location (every few minutes).
That's all fairly normal use with a bit of power-savings thought into it. If you cannot get similar performance without your screen brightness jacked way up and wifi always on (that eats battery as you move around), then maybe you have a power-hungry app. Check your Device Care section of Settings, and start watching your "Usage by apps".
Also, it's better to slow-charge than fast-charge (wears it out more quickly). And you are better off charging nightly than waiting two days until it's very low.
gruuvin said:
I charge nightly on a wireless charge pad; easy on the battery. In Device Care, I run the default "Optimized" setting. I use it moderately for the first 12 hours of my working day (meetings phone calls), and I often have 85-90% charge left at that point. I then use the phone HEAVILY for the next 4 hours (watching video, reading, etc.), and at that point I am never below 50% (often 60-70) when I put it back on the charge pad, go to sleep, and start the whole thing over again. I have the US version (Snapdragon), darkmode and auto brightness is always on, and I use Automate to toggle my wifi off when not home and back on when home. Other than that, I have gps, bluetooth, and phone data always on. Bluetooth pairs with my watch and car, and gps auto-toggles by the kernel whenever I load maps or whenever my Life360 app updates my location (every few minutes).
That's all fairly normal use with a bit of power-savings thought into it. If you cannot get similar performance without your screen brightness jacked way up and wifi always on (that eats battery as you move around), then maybe you have a power-hungry app. Check your Device Care section of Settings, and start watching your "Usage by apps".
Also, it's better to slow-charge than fast-charge (wears it out more quickly). And you are better off charging nightly than waiting two days until it's very low.
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Click to collapse
A lot of people don't realize the huge difference that your cellular connection strength makes a difference on your battery.
Try working in a all brick/stone bank building, where 250kb/s is a good 4g download speed... Then see what your battery looks like after a few hours.
Bober_is_a_troll said:
A lot of people don't realize the huge difference that your cellular connection strength makes a difference on your battery.
Try working in a all brick/stone bank building, where 250kb/s is a good 4g download speed... Then see what your battery looks like after a few hours.
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Click to collapse
YEP!
And same goes for wifi.....
wifi and cell radios can really eat up battery if they are trying to maintain a connection in areas where wifi/phone signal is weak. And app like Tasker or Automate can toggle these on and off, depending on your location, and really save battery.
Well, that probably explains a few things. I moved in to a SOLID brick building recently with double glazing everywhere and multiple solid brick internal walls. First time I've ever battled for cell and wifi signal...that does explain a lot. I guess 2 days is still pretty good. Might end up with one of those 10,000mah Chinafones eventually ;p