Terrible Battery Life? - Nexus 6P Q&A, Help & Troubleshooting

I've been getting godawful battery life - the phone comes off the charger at 8-9 in the morning and I am at ~10% at 3-4 in the afternoon with maybe an hour or two of screen on time. I'm running the latest build of PureNexus and EX Kernel, both of which are supposed to have better battery life. Android System is using 2-3 times more battery than everything else, depending on how long I've had my screen on. Should I switch back to stock (I really don't want to), or are one of these things in particular causing most of the problems?

What about apps??
Install WLD/BBS/GSAM to check the wakelocks..
If that doesn't help (which I think will help hehe) try performing a clean install of the rom+kernel

I have the same setup and I also get not that great of battery life. I get about 2H SOT for 12 hours of uptime. Theres no wakelocks or anything that shouldnt be happening. I just dont get good battery life. I don't even do much on my phone, I just reply to texts, listen to music, and occasionally google stuff.

Check if wifi and bluetooth scanning are on

pipnmike said:
Check if wifi and bluetooth scanning are on
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I didn't even know that was a setting. What exactly does this do? Will it disable any functionality of anything?

jdubya42 said:
I didn't even know that was a setting. What exactly does this do? Will it disable any functionality of anything?
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Click to collapse
It helps with many thing but primarily google now. It enables approx location for searches by scaning for wifi and/or bluetooth signal which is used to determine locarion. and also helps with smart lock I believe. Although that shouldn't drain that much battery.
Sent from a Shaftamle Galaxy S4
"Thanks Button" is always appreciated!
149ThemedGoogleKeyboards!!!!!!
Eclipse ROM fatness!
MyColorScreen

jdubya42 said:
I have the same setup and I also get not that great of battery life. I get about 2H SOT for 12 hours of uptime. Theres no wakelocks or anything that shouldnt be happening. I just dont get good battery life. I don't even do much on my phone, I just reply to texts, listen to music, and occasionally google stuff.
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Click to collapse
The reality is... By only doing small and short tasks at a time, it uses more battery. Stopping and starting lots is a lot less efficient than constant running. I am able to get about 4 hours SOT if I do small tasks, nothing prolonged, but if I stream films or longer stuff, I get 5.5-6 hours SOT. It may be worth you looking at one of the scripts for the EX kernel governors, as one of them optimises battery life for users that don't have heavy usage. Do a quick forum search for it, it is worth a try!
The most important thing is to not focus on whatever figure you get for your SOT, as long as the battery lasts long enough between chargers that it is 1) better than your previous device and 2) good enough that it does not run flat between charges, then there is no real issue. People tend to focus on SOT as a defining factor of battery life, when it isn't the only thing to focus on!!
Hope this helps somehow.

Check to see what is syncing for your Google account. I had a ton of crap syncing that I don't even use. I restricted it just to mail, contacts and apps. Also, lock WiFi on to 2.4ghz instead of automatic. Turn off automatically scan for new networks.

Yeah I realize the thing about SOT. I was just giving it a number. Honestly the battery life just doesn't impress me. I wish it lasted until I went to bed, not just when I got home.

jdubya42 said:
Yeah I realize the thing about SOT. I was just giving it a number. Honestly the battery life just doesn't impress me. I wish it lasted until I went to bed, not just when I got home.
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It is possible. I started off with diabolical battery life, but now I get through the day with ease. My only issue now is standby time, it is lacking a bit...

Related

Bad Battery life all of the sudden

Only thing I did different was turned on google talk and my battery went from 100% down to 24% in 4.5 hours. Could google talk really take up that much battery? Prior usage I would get over 18 hours, thats with texting, emails and a couple of voice calls. Previously under the battery use the screen was always at the top but now the Android system is at the top.
Guess my main question is could google talk hit the battery that hard?
Did you recently root? Mine seems much worse since rooting.
Sent from my SGH-T959 using XDA App
No root, just turned on google talk
velocd said:
No root, just turned on google talk
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There you go. Gtalk must be accessing the internet often which is causing the drain in battery.
I have noticed if I leave a page open on Google Buzz, the GPS radio can drain the battery quick.
Another reason why I want to have a development ROM with all those nice troubleshooting tools to catch these problems quicker. Like before the battery is dead.
I have similarly awful battery life on the Vibrant, and I've been running GTalk 24/7 since I purchased the phone. Going to run it with no GTalk today to see it affects life. I'll post my results here later.
coolguy949 said:
Did you recently root? Mine seems much worse since rooting.
Sent from my SGH-T959 using XDA App
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Click to collapse
I'm rooted and I still have 23% battery after 29 hours unplugged. Any other apps you got running in the background killing your battery?
After I rooted I didn't add back the Facebook and other accounts that keep the contacts updated with their status and whatnot. I get a full 24 hours out of a charge now so I am really pleased with the battery life.
I am running mine rooted, gTalk on, google sync and one exchange push sync always on, "Twitter" twitter app updating @ 30min., LauncherPro, live wallpaper, gps on standby, and I have to say coming from G1, 3G Slide, HD2, this has the best battery life so far. Not playing any games on it, nor any media streaming aside from the occasional few minutes.
Now, it has only been two days running it that way, but one can hope it stays like this! Running it unplugged from 7am to 1:30am (next day) and still having 45% battery left after a day of medium heavy use is pure bliss!
mnotz said:
I am running mine rooted, gTalk on, google sync and one exchange push sync always on, "Twitter" twitter app updating @ 30min., LauncherPro, live wallpaper, gps on standby, and I have to say coming from G1, 3G Slide, HD2, this has the best battery life so far. Not playing any games on it, nor any media streaming aside from the occasional few minutes.
Now, it has only been two days running it that way, but one can hope it stays like this! Running it unplugged from 7am to 1:30am (next day) and still having 45% battery left after a day of medium heavy use is pure bliss!
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Was your phone in your pocket or out indoors on a counter all day?
mnotz said:
I am running mine rooted, gTalk on, google sync and one exchange push sync always on, "Twitter" twitter app updating @ 30min., LauncherPro, live wallpaper, gps on standby, and I have to say coming from G1, 3G Slide, HD2, this has the best battery life so far. Not playing any games on it, nor any media streaming aside from the occasional few minutes.
Now, it has only been two days running it that way, but one can hope it stays like this! Running it unplugged from 7am to 1:30am (next day) and still having 45% battery left after a day of medium heavy use is pure bliss!
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Click to collapse
im sorry but i am every good with phones and adjusting the battery drain and this seems terribly inaccurate unless you pick up your phone once an hour and use it. There is no way you have almost 50 percent better left on this device while running all of that stuff. and you have it on 3g? or edge? is the screen bright?
overall the battery has been TERRIBLE. and it takes forever to charge. that's why i sent it back. I hate USB charger cords... seems they take loner to charge.
much love u must have an extended battery which isnt even out yet lol
hah2110 said:
Was your phone in your pocket or out indoors on a counter all day?
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lmao lool same thing i asked loool
Well, it was google talk that was doing it. I work in a large building and get about 2-3 bars of service which isn't bad but leaving google talk on literally raped my battery.
Pneumatic said:
After I rooted I didn't add back the Facebook and other accounts that keep the contacts updated with their status and whatnot. I get a full 24 hours out of a charge now so I am really pleased with the battery life.
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Thats an awesome idea!!! Facebook sync is almost retarded to have on this phone since im not running TW or looking through my contacts to check on ppl... there is no reason why I should even have to keep the account synced. The service is still probably running in the background and dropping/retrying. Thanks!!!
velocd said:
Well, it was google talk that was doing it. I work in a large building and get about 2-3 bars of service which isn't bad but leaving google talk on literally raped my battery.
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AWESOME! Thank you OP for testing and bringing us back your findings. This is how it should be done!
I've had my Vibrant since roll-out day. The battery seemed to be working well and lasting a long time. Then it began to drain rapidly going from a full charge to under 25% in about 4.5 hours. This happens with or without use. I tried disabling sync, wi-fi, push, bt, etc and I didn't see any improvement to speak of. I also set it to use 2G networks only. That was all before rooting yesterday. Today it's no better at all so rooting doesn't seem to have had any effect.
As far as charging goes- it's horrible (mains, not computer); over 4 hours from completely dead (auto-shutdown) to 100%. Even if I begin charging at 35% it still takes over 3 hours to get to 100%.
What does all this mean? Beats me. I like the phone and I am hoping it's not a hardware issue. My rooted G1 with an extended life battery running Froyo lasted all day long with constant data use, go figure.
I'll be watching the forums over the next several days with the hope that something will break loose.
stepinmyworld said:
im sorry but i am every good with phones and adjusting the battery drain and this seems terribly inaccurate unless you pick up your phone once an hour and use it. There is no way you have almost 50 percent better left on this device while running all of that stuff. and you have it on 3g? or edge? is the screen bright?
overall the battery has been TERRIBLE. and it takes forever to charge. that's why i sent it back. I hate USB charger cords... seems they take loner to charge.
much love u must have an extended battery which isnt even out yet lol
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Click to collapse
Nope, just a stock Vibrant battery. Phone lays next to me on my desk at the office all day, bounces between Edge and 3G here, currently, 2:16pm, the battery status in the phone settings shows a level of 76%, was unplugged this morning @ around 7:30. At my house I have full bars 3G. Battery use is 35% Voice Calls, 28% Display, 18% Cell standby, 13% Phone idle, 3% Android system and 2% Android OS.
I am not much into adjusting battery drain or anything like you, but those are the readings from the phone. How accurate they are or not, no idea, but this is definitely the best smartphone I ever owned concerning the battery life. And I owned a **** ton of them over the years. But I also don't complain too much, because getting through a full day is all I need.
Screen is set to auto-brightness with the application brightness thingy activated.
--Zax
Edit: Reading my original post, I guess it could be a bit confusing - I did not mean it has lasted for two days like this - I meant I own the phone only for two days, and it was unplugged yesterday from 7am to 1:30am next day (18.5h)
stepinmyworld said:
lmao lool same thing i asked loool
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It is a legit question. On my N1 and this phone I see HUGE differences in battery when the device is in heat/pocket and inside just sitting on a counter.

[Q] Tips to extend battery life? Anyone?

Hey guys,
Just got my Epic yesterday.. coming from the G1 with lots of experience loading and tweaking ROMs and dealing with same/similar battery issues.
After unpacking the Epic I used it and let it drain down to zero before recharging it; after a full recharge, I loaded up the 7 screens with widgets and ran a live wallpaper (fish). I didn't really use the phone much at all and the phone went from 100% battery down to zero in the span of only four hours!!! Geeze, you've got to be kidding me - four hours battery life?? WTF????!!
Back to the drawing board: I rooted it and ran SetCPU with some power saving profiles. Removed the live wallpaper and went to stock wallpaper. Set display power off at 30 seconds. Note that 4G remains off since there's no 4G in my area..
Couple of questions:
1. Is there any way to toggle 2G/3G like there was on my old G1? I know that was a power saver.
2. I didn't stop to read all the documentation yet (typical male, I know) but is there any way to wake this thing up from sleep mode besides pressing the power button? I can see that power button breaking for as much use as it's getting from me constantly having to wake this thing up!
3. My brightness setting is set to auto - since the display is usually the biggest drain on these things, is there a recommended manual brightness setting (percentage) that seems to work well for you and saves on battery power?
I'm waiting for the Seideo Extended Battery (just like many of you) and am wondering if I should keep the Epic since I'm on the Sprint 30-day Easy Return program.
Appreciate hearing from everyone!
Chris R.
I don't have 4G where I am. But, I have a all black wallpaper(uses less power) and unrooted. I easily get about 12-18hr out of my phone wit normal use(text, talk, and surfing the net with skyfire). Only thing that really kills my battery are games(Robo Defense can take over 30min to play one game).
Thanks for the reply - situation NOT improving
Thanks for the reply.. unfortunately, the situation is not improving...
I tried setting a Sleep Profile using SetCPU that would under-clock the CPU (using the stock kernel) once the screen dimmed and the phone went into Sleep Mode. Unfortunately, as mentioned in another thread here, the result was that the phone froze and required a battery-pull to reset.
I'm really starting to lose my enthusiasm for this device; as beautiful a display and as responsive a CPU/GPU, all of that doesn't mean much if you don't have good power management built into the firmware. At 6PM this evening I pulled it off the charger at 67% charged, it's now 8:35 PM, only 2.5 hours later and I'm down to 22%. I'm in a decent coverage area and get 2-4 bars of 3G strength so I don't think it's an issue of the radio being the culprit; in-fact if you check the battery stats it reports that that lovely Display is accountable for 78% of the battery usage! So I guess we're paying a hefty price for these 4-inch AMOLED displays!
I read somewhere else that the most recent update (DI07) has caused the battery performance to decrease; since my unit is brand-new it immediately went and installed DI07 shortly after the first boot-up so I have nothing to compare it to.. can anyone comment on that?
Thanks!
Chris R.
I'm sure custom ROMs will put performance / battery life on the top of the list but until then, I use JuiceDefender beta and have seen pretty good results with it. It shuts off data whenever the screen is off and since my screen is off a good amount (only use my phone if I need to check email, call, and / or text, which is rare when I'm at work). Other than that, yes, use black wallpaper, lower brightness to the min. in the OS and browser, and don't leave apps that constantly use 3G open (things like ebuddy, pandora, etc.). 3G really destroys battery life so minimal use of 3G data would maximize battery life. Maybe the devs can figure out a way to get at least one full day of battery life on this phone. I'm hoping that is the case.
As to your post, yes, DI07 has resulted in poorer battery life, for whatever reason. I was definitely getting a few hours more with the older firmware. I would not lose hope yet. As disappointed as you are (and all of us are, I can assure you of that), the devs are really starting to push out nice ROMs already, and in a few weeks to a month, I bet we will see some solid battery life. Hell, even 2.2 should yield much better results. Patience
Thanks for the tip!
nimaim said:
I'm sure custom ROMs will put performance / battery life on the top of the list but until then, I use JuiceDefender beta and have seen pretty good results with it. It shuts off data whenever the screen is off and since my screen is off a good amount (only use my phone if I need to check email, call, and / or text, which is rare when I'm at work).
Click to expand...
Click to collapse
Thanks for the reply! Also thanks for the tip regarding JuiceDefender! What a great app! will give it some more time and report results back here.
Thanks again!
Chris R.
nimaim said:
I'm sure custom ROMs will put performance / battery life on the top of the list but until then, I use JuiceDefender beta and have seen pretty good results with it. It shuts off data whenever the screen is off and since my screen is off a good amount (only use my phone if I need to check email, call, and / or text, which is rare when I'm at work). Other than that, yes, use black wallpaper, lower brightness to the min. in the OS and browser, and don't leave apps that constantly use 3G open (things like ebuddy, pandora, etc.). 3G really destroys battery life so minimal use of 3G data would maximize battery life. Maybe the devs can figure out a way to get at least one full day of battery life on this phone. I'm hoping that is the case.
As to your post, yes, DI07 has resulted in poorer battery life, for whatever reason. I was definitely getting a few hours more with the older firmware. I would not lose hope yet. As disappointed as you are (and all of us are, I can assure you of that), the devs are really starting to push out nice ROMs already, and in a few weeks to a month, I bet we will see some solid battery life. Hell, even 2.2 should yield much better results. Patience
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Click to collapse
DI07 has hurt my battery life substantially. In fact, my battery drains very close to twice as fast now with the update. I don't understand what they did. My phone certainly doesn't seem any faster, my display is dimmer, and battery life sucks. I'm going to have to go back to DG27 so I can use my phone all day. With DI07 it always dies on me by mid afternoon. With DG27 it was still running by 11pm at night without even a battery low warning.
juice defender ftw
also, use advanced task killer with low security settings to kill all the background processes. Set the autokill to when the screen turns off. This keeps everything pretty well managed and helps with battery as well
JUICE DEFENDER BATTERY!!! Saved my phone from flying out of my car window at 10 in the morning........
here is a link to a thread I started.
Sharing my juice defender settings. I also use ultimate juice.
http://forum.ppcgeeks.com/sprint-epic-4g/133933-sharing-my-juice-defender-settings.html
I can get a day and a half (or slightly longer) out of a single charge.
YMMV.
Hope this helps
Advanced task killer + Juice Defender. You could also get some custom roms and Kernals that would help boost it.
But that's your best hope. Keep off 4g, wifi, bluetooth, etc.
compujock said:
DI07 has hurt my battery life substantially. In fact, my battery drains very close to twice as fast now with the update. I don't understand what they did. My phone certainly doesn't seem any faster, my display is dimmer, and battery life sucks. I'm going to have to go back to DG27 so I can use my phone all day. With DI07 it always dies on me by mid afternoon. With DG27 it was still running by 11pm at night without even a battery low warning.
Click to expand...
Click to collapse
Look here- try stopping the DRM service and see if that helps your battery life with D107
jimmyz said:
Look here- try stopping the DRM service and see if that helps your battery life with D107
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Click to collapse
Ah, the evils of DRM can strike in unexpected ways...
I wasn't really having a battery problem but I just turned DRM off, so we'll see if battery life improves anyway.
I had a whole long post here that got wiped with the xda disk array failure, so I'll just sum that up here too:
1) Use wi-fi if possible - it REALLY helps
2) 4G does not seem to use the battery any more than 3G, although hunting for 4G does and 4G coverage is not as extensive as 3G even in 4G areas. So it's still best to leave it off if you're moving around.
3) Dim your screen and use a dark, static background. AMOLED screens don't work like LCD's; they use more power the more pixels are lit and the brighter they are.
4) GPS also kills your battery - leave that off unless you need it too.
I think that's it. I get about 18 hours on DI07 (even before trying the DRM thing; maybe I can get to a full day!).
One thing I'm noticing after checking DRM - I've got Google Maps' LocationService popping up about every 10 seconds, and I can't seem to shut it off permanently. (I went into Lattitude and turned that off, not sure what else to do.) That can't be helping... anyone know how to get rid of that?
I'm using juice defender and a constant email junkie, but lite use on other aspects of the phone. It goes off charger at 5:30 am and I'm about 67% at around 3p. It then goes in the car charger on the way home. This has much better battery life than the Pre or the Hero as with both I had to turn off email to get it to last throughout the day.
I don't expect these phones to last days, but I expect any phone that I get to last the business day. I've always been one to charge overnight.
Wifi drains battery more from what I've read.
Sent from my SPH-D700 using XDA App
I've heard the opposite that wifi (as long as it's connected) uses up less battery than 3g/4g. Any of them will suck the battery dry if they're searching, so make sure you have a connection to one of them.
Hi everyone, new to the forum. Just started checking it out when the Epic was released and this is my first post. Anyways, here's my question. My phone's been off the charger for 7 hours and 17 minutes and it is now down to 15%.
Display 79%
Cell standby 7%
Android System 4%
Phone idle 2%
Swype 2%
I've gone into the display settings and I thought I had set everything up optimally. The brightness is always very low. The screen timeout is 15 seconds and the keyboard matches that. I don't know what else I can do to cripple the phone to get the battery to last longer.
I have had wifi on, 4g off, bluetooth off, gps off. Really all I have done this afternoon while watching NFL games is check my yahoo fantasy score, play 2 games of WordFeud, and check twitter and facebook. I purchased Juice Defender a week ago and it has been running all day.
Any suggestions for how I can reduce the drain from the display? My background is a black and white picture of a friend of mine, which I thought would help.
Don't get me wrong, I love this phone. But the battery life I've seen is just terrible. I'd love to buy the extended battery from Seidio whenever its available, at least that would make it last longer even if the settings aren't tweaked.
Do you have juice defender installed?
Yep. Its installed and running now.
Sent from my SPH-D700 using XDA App
bagelicious said:
Hi everyone, new to the forum. Just started checking it out when the Epic was released and this is my first post. Anyways, here's my question. My phone's been off the charger for 7 hours and 17 minutes and it is now down to 15%.
Display 79%
Cell standby 7%
Android System 4%
Phone idle 2%
Swype 2%
I've gone into the display settings and I thought I had set everything up optimally. The brightness is always very low. The screen timeout is 15 seconds and the keyboard matches that. I don't know what else I can do to cripple the phone to get the battery to last longer.
Click to expand...
Click to collapse
There are only two reasons for your display to be using that much battery:
a) it's too bright, or
b) you're using it a lot.
If you're using the phone a lot, your battery's going to run out pretty quick and there's no way around that. If you're using it a "normal" amount, which to me means maybe an hour *total* per day of having the display on, then the other culprit is going to be your brightness. (Some would argue that's less than a normal amount, but think about it... you get a new phone, you're going to play with it for a week or two until you've seen all the cool stuff. But at some point you're going to start putting it away most of the time and just using it when someone calls you, you get a message/email or maybe to play a game or two while waiting for the train.)
Set your brightness *all* the way down, just as a test for a couple days. Make sure all the "power saving" features of the display are turned *off* (auto brightness, and whatever that "picture detection" feature's called, I can't remember). You just want the display as dim as possible all the time, just to see what happens. See what the battery usage says after a day or two of this.
My bet is that you'll see a drop, and then as you get into a more normal usage pattern it'll drop further still. You can raise the brightness a couple ticks then as you learn how to stretch your battery out.
Personally, my display is rarely over 15% or so of my usage. Today it's 29%, but it's a Sunday and I don't have anything better to do but play around on my phone.
btw, it's still the first day I've tried this but that DRM thing might be working. It's almost 9PM and I'm still on like 80% battery, and like I said I have been using the phone off and on throughout the day.
That has helped tremendously. I installed it pretty much when I got the phone and I'm able to last the whole work day with 67% left. (10 hour day)

[Q] Questions regarding battery life

I had searched previously and read some things about this "bump" charging stuff supposedly getting you many more hours of usage on a normal schedule.
Actually, guess I should preface with some background info. This is my first android phone, but I've been watching since 1.6 came out. So, the day I got my Epic it was rooted and I flashed Nebula ROM on it. I also tried out Epic Experience, but was more pleased with Nebula. Of course I'm running DK28 with the modem fix.
On to my question. What can be done to increase battery life on a fairly undemanding schedule, without causing the device itself to operate less smoothly?
I tried several of the bump charging methods I saw, but I'm sitting at 33% battery after 5:45.
I'm going to feel dumb if this is actually average and I'm just expecting too much, haha.
Thank you, kindly.
Kanojo said:
I had searched previously and read some things about this "bump" charging stuff supposedly getting you many more hours of usage on a normal schedule.
Actually, guess I should preface with some background info. This is my first android phone, but I've been watching since 1.6 came out. So, the day I got my Epic it was rooted and I flashed Nebula ROM on it. I also tried out Epic Experience, but was more pleased with Nebula. Of course I'm running DK28 with the modem fix.
On to my question. What can be done to increase battery life on a fairly undemanding schedule, without causing the device itself to operate less smoothly?
I tried several of the bump charging methods I saw, but I'm sitting at 33% battery after 5:45.
I'm going to feel dumb if this is actually average and I'm just expecting too much, haha.
Thank you, kindly.
Click to expand...
Click to collapse
You can try calibrating your battery. If you don't know how, well here's some instructions:
To do this, all you have to do is let your battery completely drain. Then while the phone is off, charge it for around eight hours straight without turning the phone on (have it just showing the battery icon).
Since you are already at 33% or so, I'd suggest just letting it drain today, and have it just charge overnight.
I, too, am running the Nebula Rom, but I haven't tested it for a full day without charging it yet. So, you can try calibrating the battery if you would like to see if you would get any improvement, but in my opinion, 33% at 5:45 sounds great. I'd be satisfied with that.
Please let me know how it all turns out.
Hope this helps!
acer1096xxx said:
You can try calibrating your battery. If you don't know how, well here's some instructions:
To do this, all you have to do is let your battery completely drain. Then while the phone is off, charge it for around eight hours straight without turning the phone on (have it just showing the battery icon).
Since you are already at 33% or so, I'd suggest just letting it drain today, and have it just charge overnight.
I, too, am running the Nebula Rom, but I haven't tested it for a full day without charging it yet. So, you can try calibrating the battery if you would like to see if you would get any improvement, but in my opinion, 33% at 5:45 sounds great. I'd be satisfied with that.
Please let me know how it all turns out.
Hope this helps!
Click to expand...
Click to collapse
Thank you for the speedy reply, I will try that.
I wasn't really expecting 33%, but more around 50%. I've only sent three texts today on it (as I was trying to see how well it'd hold up) and so I assumed battery life would be fairly high. But I am also living in an area with extremely poor coverage, so bad that it'll start searching for signal if I move the phone 2 feet away. So maybe it is trying to acquire a signal often.
I'll report back in the morning. Any other advice/ideas would be greatly appreciated.
Kanojo said:
Thank you for the speedy reply, I will try that.
I wasn't really expecting 33%, but more around 50%. I've only sent three texts today on it (as I was trying to see how well it'd hold up) and so I assumed battery life would be fairly high. But I am also living in an area with extremely poor coverage, so bad that it'll start searching for signal if I move the phone 2 feet away. So maybe it is trying to acquire a signal often.
I'll report back in the morning. Any other advice/ideas would be greatly appreciated.
Click to expand...
Click to collapse
Well, there's basic things as well.
Check to see if Data Roaming is on, make the brightness Auto, no live wallpaper, no bluetooth, no GPS, No background data/Accounts Sync.
But you shouldn't have to do ALL of those. Just a couple if you haven't already to boost the battery a little.
And yes, searching for a signal could be the problem.
And only three texts? Nothing else? Maybe there is something wrong.
Tell me the results tomorrow after calibrating the battery.
I'm using midnight rom and I'm at 20h26m and 33% with moderate usage. You can try recalibrate and wipe 3x b4 install the rom. It might help. Good luck.
Sent from my SPH-D700 using XDA App
Alright, it's 9:20 EST and I'm starting off with 96% battery life. I'll gauge how it holds up through "normal" usage, which is somewhat less conservative. Wifi will be on nearly constantly, my signal will be weak unless I leave, autosync is set to hourly with background data.
I normally get about 12-16 hours on what I call moderate use.
I leave gps on all the time. I make ~6-10 calls a day for 5-30 minutes. I send and receive ~30 texts a day. I'll put an hour or two worth of internet time per day. (not watching videos)
I kill the drm and friend locator services on every boot. This helped my battery life a lot.
It does help to train your battery dragon occasionally.
ntime60 said:
I normally get about 12-16 hours on what I call moderate use.
I leave gps on all the time. I make ~6-10 calls a day for 5-30 minutes. I send and receive ~30 texts a day. I'll put an hour or two worth of internet time per day. (not watching videos)
I kill the drm and friend locator services on every boot. This helped my battery life a lot.
It does help to train your battery dragon occasionally.
Click to expand...
Click to collapse
Ya, that's the kind of performance I'd like. Are you running stock or do you have a rom installed? Also, what DRM and Friend Locater? Never heard of the latter.
acer1096xxx said:
Well, there's basic things as well.
Check to see if Data Roaming is on, make the brightness Auto, no live wallpaper, no bluetooth, no GPS, No background data/Accounts Sync.
But you shouldn't have to do ALL of those. Just a couple if you haven't already to boost the battery a little.
And yes, searching for a signal could be the problem.
And only three texts? Nothing else? Maybe there is something wrong.
Tell me the results tomorrow after calibrating the battery.
Click to expand...
Click to collapse
Are you saying to turn Data Roaming on or off? I could come up with a reason it would help either way, so do tell.
Same thing with Auto brightness, I would think that actually uses more battery than a fixed lower/medium brightness.
Do people on here really leave Sync and GPS off?
Compared to these settings, I'm completely lazy, and still get good battery life.
AndrewZorn said:
Are you saying to turn Data Roaming on or off? I could come up with a reason it would help either way, so do tell.
Same thing with Auto brightness, I would think that actually uses more battery than a fixed lower/medium brightness.
Do people on here really leave Sync and GPS off?
Compared to these settings, I'm completely lazy, and still get good battery life.
Click to expand...
Click to collapse
Turn off Data Roaming. The reason being is that with it on, your network will constantly search for data, and that drains the battery. The brightness I am actually not sure on. I have had better results with auto rather than, say, 0%.
If you get good battery life already, that's fine. But auto-sync isn't really necessary in my opinion.
Sent from my SPH-D700 using XDA App
Alright, it's been 5:33 since it's been unplugged and I'm sitting at 68%. This is with wifi on the entire time, brightness set to auto, and data roaming off (no need for it to be on, I was considering toggling it based on my location in Tasker). Sync is on and I rarely have use for GPS in my day-to-day so that is off.
So I think the calibration as recommended by Acer1096xxx has effected the life of my battery for the better. Thank you, once again.
Hopefully this thread will help others out in the long run. I'll continue to monitor my activity and battery life.
EDIT: 57% as of 5 o'clock. Had to plug it in because I'd be going out tonight doing things. Overall, this is about the performance I was hoping.

[TIPS] Juice Defender, Why its good and bad

Reading through threads I see lots of people saying JD and similar apps are good and lots saying they are bad. This is quite confusing for someone who just wants to get good battery life. In my experience I have gone from finding it good to finding it bad. I will try and explain why this occurs so that people are able to decide if it will be worthwhile for them.
First install Battery Monitor Widget and find out what sort of drain your battery is experiencing every hour.
With a stock rooted G2 with data connection on continually (no wifi) I was getting around 80-150 mA which explains why it would not last longer that about 16 hours. Most of this drain seems to occur from data connections. After installing JD or something similar the drain can be reduced to around 50 mA. Which is great, suddenly you get the claimed 1.5 to 2x battery life. JD seems great.
But after you install a good ROM and custom kernal, remove or freeze all the apps that keep using your data connection unnecessarily and install Better Battery stats you observe that JD stops the phone going into a proper deep sleep. If you dump it the drain on the phone drops to very low numbers usually under 20mA sometimes 5mA or even 2mA. This means you use around 1-3% of the battery life of the phone overnight with no changes. Now your phone can last days between charges. Note this is with Data or Wifi connections turned on and Sync active always.
Summary:
On a badly set up phone JD improves battery life (for the lazy)
On a well set up phone JD worsens battery life (takes some time)
Note: I got the best results using Speedmods kernal but I have no reason to think that other kernals could not get similarly low battery drains.
Thanks for sharing your observations. I have juice defender and have had similar findings. The wake locks jd causes play into the aos bug of the phone which is why it can make things worse on a well set up phone (the extra drain from the wake locks outweighs the savings from turning the data connection off when it's not in use). If not for the aos bug it would probably be good in all cases. I had noticed this in my testing and am glad to see I'm not the only one.
Sent from my GT-I9100 using xda premium
Thanks for sharing your observations.
If I had seen your post much earlier than I wouldn't have to buy JD. Anyway, I have gone through the hard way, and learnt how to keep my phone organized and minimized rouge apps issue. JD is pretty much useless now.
IMHO, I think Battery monitor widget pro seems to be a much better buy
Thanx for this helpful info!
BTW, kernel not kernal
I do not have a lot of widgets and sync as little as possible. Mail sync is only on demand (when I have time to read it), and Weather is every 6 hour (disabled in night time).
So my battery live is good ½% standby and with normal use it can easily last a full day (no gaming, just Internet, Talk, SMS).
I decided to try JD in order to save even more juice, but JD ended up using more battery than it saved me!
So I can confirm that JD is good for the "lazy user" and bad if your aware of your sync. and how your apps behave.
What do u mean by dumping? You said if you dump it and the drain goea away? Im a bit confused
Sent from my brilliant Viper skinned Apple iPad 2 using the superior Tapatalk Premium
best way to save battery overnight are, disable all internet connection including Wifi, switch to 2G, kill all task then have a sweet dream till next sun rises
KurskS said:
What do u mean by dumping? You said if you dump it and the drain goea away? Im a bit confused
Click to expand...
Click to collapse
By 'dump' I just meant uninstall JD. If you uninstall JD your phone will be able to deep sleep properly provided it is set up well and you actually save more battery.
foxcheng said:
best way to save battery overnight are, disable all internet connection including Wifi, switch to 2G, kill all task then have a sweet dream till next sun rises
Click to expand...
Click to collapse
Sure you can do that, but it's not necessary. I leave wifi and 3g on and still have drain of 5mA all night. I wake up and have lost almost no battery. The same applies for when the phone is idle during the day.
razar77 said:
Sure you can do that, but it's not necessary. I leave wifi and 3g on and still have drain of 5mA all night. I wake up and have lost almost no battery. The same applies for when the phone is idle during the day.
Click to expand...
Click to collapse
What kernel , Rom and apps (that sync) are you using?
Sent from my GT-I9100 using Tapatalk

Nexus 6P - Bad SOT

Hey guys, I'm very new to XDA but I really hope someone can help me out. I'm a nexus fan and its just the best but I bought the nexus 6P thinking that I'm going to get around 6 Hours SOT considering I used to get around 4 with my N5 with the same level of usage. I want to know what I'm doing wrong or if I'm overlooking something.
Let me tell you about my phone and how I use it.
I have Elemental X + Pure nexus installed
Elemental x settings are on Ghost Pepper and I put CPU governmer on ' ondemand '
• I don't have Facebook and Messenger installed (These two were some SERIOUSS battery hoggers )
• I use google chrome push notifications as a replacement
• I use snapchat but not very excessively
• Turned off all gestures as i never used them
• Adaptive display is off
• Ambient display is off
• Notification Lights are off
• GOOGLE automatically syncs everything at anytime but other than that i manually sync whatsapp
• Location is always off except at rare times
• I use bluetooth to connect to my car to play music for an hour daily.
• Brightness is at 30-60% for 3/5th the day, 2/5th of the time it's lower than 30%.
• LTE is on for aboutt 4-5 hours a day and the rest is on WIFI.
Furthermore, I use my laptop more than my phone so I'm constantly picking up my phone and am not allowing it to fall into deep sleep for a good amount of time except at night or when im playing some serious CSGO; I noticed that its during the screen off time where I'm losing so much battery.
Now after reading all of this, do you still think I deserve to get that much screen on time?
Is there some setting I have missed out or is it the kernel + rom combination, I am really frustrated. This phone is magical but the battery is just so disappointing, I want at least 5 hours on screen time (I just barely reach 4 hours SOT)
Oh and let me further explain how the battery dies. Usually I'll be browsing facebook or 9gag and using snapchat and lets say its at 90%, it wont budge for 10 minutes or even more regardless of how heavily I use it. But the moment I turn the screen off and turn it back on, woooshh I'll lose 1%, and when I start using it again, another percent drops instantly. This is just seriously irritating and I have no clue as to what I need to do.
Thank you for any help!
No one I've ever read of gets 6 hours of screen time on this device. Between 4.5-5+ is pretty typical.
Playing music while the screen is off will have a pretty big impact on sot, especially if it's playing via the phones speakers. I know that has a big impact on my sot. There are some screenshots on here of 6 hours sot, but I suspect they set the screen timeout very high while leaving the device inactive. 4 hours is the average sot on this device from my experience.
jibanator said:
Hey guys, I'm very new to XDA but I really hope someone can help me out. I'm a nexus fan and its just the best but I bought the nexus 6P thinking that I'm going to get around 6 Hours SOT considering I used to get around 4 with my N5 with the same level of usage. I want to know what I'm doing wrong or if I'm overlooking something.
Let me tell you about my phone and how I use it.
I have Elemental X + Pure nexus installed
Elemental x settings are on Ghost Pepper and I put CPU governmer on ' ondemand '
• I don't have Facebook and Messenger installed (These two were some SERIOUSS battery hoggers )
• I use google chrome push notifications as a replacement
• I use snapchat but not very excessively
• Turned off all gestures as i never used them
• Adaptive display is off
• Ambient display is off
• Notification Lights are off
• GOOGLE automatically syncs everything at anytime but other than that i manually sync whatsapp
• Location is always off except at rare times
• I use bluetooth to connect to my car to play music for an hour daily.
• Brightness is at 30-60% for 3/5th the day, 2/5th of the time it's lower than 30%.
• LTE is on for aboutt 4-5 hours a day and the rest is on WIFI.
Furthermore, I use my laptop more than my phone so I'm constantly picking up my phone and am not allowing it to fall into deep sleep for a good amount of time except at night or when im playing some serious CSGO; I noticed that its during the screen off time where I'm losing so much battery.
Now after reading all of this, do you still think I deserve to get that much screen on time?
Is there some setting I have missed out or is it the kernel + rom combination, I am really frustrated. This phone is magical but the battery is just so disappointing, I want at least 5 hours on screen time (I just barely reach 4 hours SOT)
Oh and let me further explain how the battery dies. Usually I'll be browsing facebook or 9gag and using snapchat and lets say its at 90%, it wont budge for 10 minutes or even more regardless of how heavily I use it. But the moment I turn the screen off and turn it back on, woooshh I'll lose 1%, and when I start using it again, another percent drops instantly. This is just seriously irritating and I have no clue as to what I need to do.
Thank you for any help!
Click to expand...
Click to collapse
GhostPepper is meant to run on interactive governor not ondemand. Disable TouchBoost under CPU in EXKM.
As for the rest I can't comment because you use the phone differently than mine.
I came to understand that phones are different from each other. Some have 5-8 hours of SOT and some have 3-5 hours SOT. Usage is different from each person and phone.
I would agree with several of the others that SoT is more typically 4-5 hours...I use my phone pretty heavily so I'm probably toward the shorter end of that, but even with a somewhat degraded battery (70% according to accubattery) I can still get 3 or at least close. Now granted I was only getting 1-1.5 but I went through and wiped my phone, heavily limiting the number of apps I had installed (I had a ton), and reducing the number of Google apps and services (now, etc.) that I used. Other than that just a couple minor kernel tweaks (hawktail6p profile, disable touchboost, disable zram, etc. not even sure on that last one lol)...anyways getting much better battery afterwards.
I get 2 hours of sot. My phone is about a year-and-a-half old.
I have tried all sorts of ROMs and different kernels and every tweet you can think of to try to extend my battery life. But nothing works. I'm going to have to just get a different phone soon.
choder said:
I get 2 hours of sot. My phone is about a year-and-a-half old.
I have tried all sorts of ROMs and different kernels and every tweet you can think of to try to extend my battery life. But nothing works. I'm going to have to just get a different phone soon.
Click to expand...
Click to collapse
Choder...I have also had my Nexus 6P since the first week it was released. I also was getting horrible battery life and I decided to order a new battery and replace it. I can tell you that my factory battery over almost a year and 3 months, had degraded horribly.
Remember when you first got it charged it up to full, the battery percentage would read 100 percent for almost a half hour BEFORE dropping. Well, it's like that again with this new battery I ordered off of ebay. Routinely getting between 5 and 6 hours SOT. I don't use my device for games, so its browsing, youtube, checking email and messages throughout the day. Don't get a new phone...spend the 13 bucks on a new battery and save the cash.
xBigMikex said:
Choder...I have also had my Nexus 6P since the first week it was released. I also was getting horrible battery life and I decided to order a new battery and replace it. I can tell you that my factory battery over almost a year and 3 months, had degraded horribly.
Remember when you first got it charged it up to full, the battery percentage would read 100 percent for almost a half hour BEFORE dropping. Well, it's like that again with this new battery I ordered off of ebay. Routinely getting between 5 and 6 hours SOT. I don't use my device for games, so its browsing, youtube, checking email and messages throughout the day. Don't get a new phone...spend the 13 bucks on a new battery and save the cash.
Click to expand...
Click to collapse
i've seen the DIY battery replacement video on youtube. Looks difficult IMO. what did you think? Have you ever done anything like that before? really interested in trying but intimidated and don't want to bork my phone....
I am getting 2.5h SOT....any governor, any kernel, any ROM....just a bad device to buy for a good battery life.
I mean, it's frickin huge!! Of course you should expect 4h...but 2.5h cmon....I swear of God there is something wrong with Android...my phone turns off at 35% saying Power (0%) Shutting down...WTF?!?
mihovil13 said:
I am getting 2.5h SOT....any governor, any kernel, any ROM....just a bad device to buy for a good battery life.
I mean, it's frickin huge!! Of course you should expect 4h...but 2.5h cmon....I swear of God there is something wrong with Android...my phone turns off at 35% saying Power (0%) Shutting down...WTF?!?
Click to expand...
Click to collapse
That shutdown at 30% is a known issue. You should RMA your phone. Huawei extended the warranty at least through the end of this month.
---------- Post added at 09:23 PM ---------- Previous post was at 09:15 PM ----------
jt1998 said:
i've seen the DIY battery replacement video on youtube. Looks difficult IMO. what did you think? Have you ever done anything like that before? really interested in trying but intimidated and don't want to bork my phone....
Click to expand...
Click to collapse
If you find DIY intimidating you can always get a quote from a phone repair place. It would be cheaper than getting a new phone but you have to do some extreme things to get long battery life out of the 6P because the phone wasn't really made that way. Rooting, using a kernel tuned for battery savings (which will likely affect the performance of the phone) and using Naptime (which puts the phone into Doze as soon as the screen goes off) will all increase overall battery life.
jt1998 said:
i've seen the DIY battery replacement video on youtube. Looks difficult IMO. what did you think? Have you ever done anything like that before? really interested in trying but intimidated and don't want to bork my phone....
Click to expand...
Click to collapse
It's not as difficult as it looks. Just make sure you have the proper tools. A heat gun, the hobby knife to fit between the aluminum body and the plastic screen housing.
Once you get the separation you can use a guitar pick to undo the clips around the edges of the 6p. Just take your time.
hh11bbaacchh11 said:
I came to understand that phones are different from each other. Some have 5-8 hours of SOT and some have 3-5 hours SOT. Usage is different from each person and phone.
Click to expand...
Click to collapse
I've never seen over 5 hrs
Sent from my Nexus 6P using XDA Labs
Nothex said:
I've never seen over 5 hrs
Sent from my Nexus 6P using XDA Labs
Click to expand...
Click to collapse
So you haven't seen all. I can use my phone and get 6 to 7h SOT (check here on XDA and you will see a lot of people achieving the same). Places where LTE is very bad combined with Google services trying to sync whatever is the biggest drainer here that can bring me down to 4h.
rchtk said:
So you haven't seen all. I can use my phone and get 6 to 7h SOT (check here on XDA and you will see a lot of people achieving the same). Places where LTE is very bad combined with Google services trying to sync whatever is the biggest drainer here that can bring me down to 4h.
Click to expand...
Click to collapse
We'll I average 6:41 sot based on gsam averages. My phone rarely gets below 50-55% before I'm charging that night (9am-12am) the last time I was at 50% was a could days ago and was at 3:40 sot. The biggest thing I do is on any rom or kernel...
First is turn off all the sync under Google. That means contacts, calendar... Everything. No reason to let all the stuff just sync all day long. If I add a contract I go in account, Google and sync my contacts. The next thing I do is turn off all the background data syncing under data usage, cellular data usage for apps that need not sync. I leave days syncing for things like Google app, text apps browser, things your need to sync. Put location to battery saving unless I need high accuracy.
That's it, it's not rocket science, of you're still getting bad sot, your phone is likely with bad signal, not sleeping from a rouge app or maybe the battery is degraded a lot. If you're getting the shutdown issue, then RMA your phone, that's a bad bug.
In my case I was talking about sync under 'backup and reinit'. Having to switch off normal google sync would be a bit of a hassle. I use gmail (which is crap but haven't reconnected k9mail yet) and more important i use keep to share stuffs. I prefer sync over sot and I anyway reach a day.
But in my case, believe me, the root cause is bad gapps sync when having atrocious 3G (LTE little less draining) which is half of my day.
At home data connection is OK and I can get past 6h as I said. My device is only 6 months old. I have an estimated capacity of 3440mAh.

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