Got a NC for xmas and rooted it and installed cm7.1 and everything seems to be working well except the battery. I went under battery use and i see that Display is eating about 60% of my battery! I turned brightness down to 25%-ish and i have also turned off everything i am not using but the problem still persists. I have seen people saying i need to do some kind of battery calibration but i do not know how to do this. If someone can help me get this issue resolved it would be greatly appreciated.
Unfortunately, you can only do so much about screen battery consumption. Turn brightness down as far as is comfortable, but personally, I don't want to give up the vibrant display. I find 25% is usually adequate indoors. With my screen ON, it consumes roughly 10% per hour of use, which equates to 8-10 hours of use -- not bad. With the screen OFF, it sips less than 1% per hour, and often less than that over a few hours.
Keep in mind, you WANT screen battery consumption to be the largest value. That means it's nice and idle when you're not using it. If something else is using a significant amount of battery, that may be something you can do something about.
As to calibration, I do find that Android battery gauges often are incorrect until you let the battery completely discharge from a full charge once. Then it's calibrated correctly. Of course, that's not recommended for battery health, so don't do it compulsively. I had a device that showed 1% battery remaining for 3 hours while I played MP3 audio.
I wish i was getting 10% an hour, im getting roughly 20% I now have another issue that i did not have this morning, i can not connect to my computer via USB. Is there a setting i might have turned off in my fit to increase battery life?
@Lsjreadingpa Renaming /system/app/phone.apk to phone.bak is a commonly undertaken act that can significantly lower battery usage. Also, you can turn off Account Sync when not using it actively, as it increases battery drain when you are not actively using the NC.
As far as the USB is concerned, make sure you have USB debugging checked in the settings menu.
disynthetic said:
@Lsjreadingpa Renaming /system/app/phone.apk to phone.bak is a commonly undertaken act that can significantly lower battery usage. Also, you can turn off Account Sync when not using it actively, as it increases battery drain when you are not actively using the NC.
As far as the USB is concerned, make sure you have USB debugging checked in the settings menu.
Click to expand...
Click to collapse
How do i rename it? Also a bit of an update, i have turned off syncing as well as alot of the other options and i am losing 5%/20min
Last night I cleared cache and battery stats and let the battery die and then charged it to full this morning. Like I said above I turned off syncing and gps as well as removing beautiful Widgets. I just don't know what else to do. I'm attatching two screenshots showing my battery use in the last hour.
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You can use Spare Parts to check what's consuming battery if your DOMAIN supports it.
Anyone able to help?
Are you concerned about battery consumption while you're using it? If so, then your brightness and the applications you're running are going to determine your battery life.
If it's battery consumption while idle (screen off) that you're concerned about, then do you have any widgets that do network access? I found that my battery life dramatically improved when I was no longer using the Twitter widget.
In Spare Parts you can go to Battery History, then check 'Partial Wake Usage'... this can help you figure out if there's an application that's preventing the device from going to sleep.
I would recommend trying a newer nightly or the Mirage/Kang build found in the Android Dev sub-forum here. I forget when they were added, but there were a few big improvements to CM7 a while ago to help with battery life.
Battery consumption while using it is kinda of scary because it drops like a brick. While sleeping, which i don't think it was doing, seemed to get better after i removed beautiful widgets. How different is the Kang build?
The Kang build has an updated kernel and other updates since the last CM7 nightly. It's supposed to fix an SOD issue. I've been running it for a while and am very happy with the battery life.
Like others have said, battery life while using it would most likely be helped by adjusting the display brightness, kernel settings and/or stopping "rogue" apps. You can see the kernel settings by going into the Settings Menu, then Cyanogenmod Settings then Performance. I use the InteractiveX governor (I believe "Performance" is the one that keeps the CPU ramped up constantly) with the highest overclock.
Related
ok ive been reading a few post and ideas on the net about battery life and how to get more and something that ive noticed is that if i run my battery to say 15% and give it a full charge over night it makes no difference if i just give it a couple of hours charge.?
in fact im sure it seems better on battery when giving it short charges?
clax6 said:
ok ive been reading a few post and ideas on the net about battery life and how to get more and something that ive noticed is that if i run my battery to say 15% and give it a full charge over night it makes no difference if i just give it a couple of hours charge.?
in fact im sure it seems better on battery when giving it short charges?
Click to expand...
Click to collapse
it doesen't matter if you leave it over night, or just a few hours.
if the battery is full, then its full.
kaukassus said:
it doesen't matter if you leave it over night, or just a few hours.
if the battery is full, then its full.
Click to expand...
Click to collapse
Well, just to be correct. "Full" on your phone isn't a full battery. Full is reported between 95-100%. That's FULL for your phone. It's not possible to keep the phone at a 100% charged state always without hurting it. So it can be between 95-100% to be full on your phone.
I don't want to open a new battery thread, so i'll post my problem here.
I set up an e-mail account (exchange) a few hours ago. Always had Problems with Android OS, ofc. But guess who is the new primary consumer? E-Mail.
Can't believe that, never had any problems with gmail. I'm going to delete the exchange account and hopefuly it will be ok again.
Anyone else having issues with exchange?
Cheers
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here is the screenshot.
email will kill your battery if it is set to PUSH all the time, and if you are getting large mails or too many of them. Make sure you think through push vs timed sync, and also configure how much of a message you want to retrieve (if it is a large message). Still the more emails you are getting the heavier this will drain the batt. I have no idea how Email client eats much more battery than Gmail. I believe it is because gmail's usage is not 100% shown under "gmail", it may be attributed to some other system processes. At the same time, the email client is heavily customized by Samsung, so who knows.
The mail account was brand new, so there was only one mail on it.
I disabled it, and the drain overnight was about 10%, so i just stay without it.
Cheers
Speaking personally, I have push email (Exchange) on all the time, along with WiFi, Bluetooth and data.
I have just conducted a 24 hour experiment and with low to moderate usage of the phone (2 hrs 37 mins screen time) I had 45% battery left. This includes time at home, time in an office and time outside.
I know this won't help those who are struggling with battery life but it does underline the inconsistency of performance of battery on these devices in certain conditions and it absolutely highlights the dangers of trying to attribute all performance issues to a single cause. Fast Dormancy and Latitude were the two biggest battery wasters in my case and performance has improved significantly since I turned these off.
In my view there is no single once-size-fits-all solution; a new firmware might alleviate the issues for most, but it could even be that a batch of rogue hardware components might account for the big discrepancy between users like me, who would claim excellent battery life and others who see their phone battery wiped out in just a few hours.
All I can say s that it is reasonable to expect - and perfectly possible to have - all the toys on our phones on and working, and still have decent battery life.
hii
enable ur power saving mode always
it make difference...
Ok, I've been thinking about this for a while now so I'm going to make a test to decide if I really need a battery saver. I'm making this test for myself purely but I thought someone might wanted to see the results as well so here we go.
The gear:
Samsung Galaxy S2, non-rooted
2000 mah Samsung battery
The competitors
Phone on its own
JuiceDefender Ultimate
GreenPower Free
The settings
Prefer Wifi over data
Connect every 30 min to sync
No night settings (to be fair against the others)
Screen brightness: Auto
I know the battery savers are made to save battery when not using your phone so the screen will be locked the phone only used for a small amount of time between chargings.
The phone is unplugged at 100% and I will continue down to 30% before charging again. I will only be testing each one once, as of now at least.
We'll see how it goes over the next days so feel free to ask questions and such.
Many people I know with an S2 use battery saving apps but i really see no point in them, when we used to compare our stock phones running the same stock ROM there was minimal battery difference. Haptic feedback will be off or on? That makes a big difference.
You should put in a custom ROM to see how much better it is compared to stock.
i look forward to seeing the results of this test though
If I got it correctly haptic feedback is phone vibration on touch, right? That's off at least, never liked it. I'd like to put a custom ROM but I don't want to root the phone, yet.. Maybe in a few months or a year...
I will be updating this as we go along. At the moment we are at 96% with 3 hours of sleep time and only a few minutes of screen time.
Ermm, can I ask does task killer drain your battery? Sorry if I ask the wrong question.
darkmage17 said:
Ermm, can I ask does task killer drain your battery? Sorry if I ask the wrong question.
Click to expand...
Click to collapse
task killer will drain battery if the programs you closed restarts, use advance task killer and ignore those that do,you may need it for those apps that didnt close properly
im interested in your trial, juice defender service was failing to run on my s2, it ended up eating my battery restarting the service.
im looking to save power as i lose 15% over night with flight mode while i hear people lose 1,2%
Yes Android is a bit different than computer OS. To start an app drains more battery than just pushing the "back"-button and let it be in stand by so don't use task killers.
Yea I have had trouble some times with the battery saver draining quite a lot over the night but usually it has been because I had a mail as a widget with push-notification so the battery saver wouldn't disable internet but almost push all my other accounts as well. That was my solution at least. We'll see how this goes.
4h in 93% battery
15 min scrren time
A little update. You see where we are.
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And does anyone know what can have caused this? This is a picture from a few days ago. It has happened maybe 10 times over the last 2 months. Simply the phone gets hot and the only way to unlock the screen is to remove the battery, refit it and then start it. And then it shows this massive drain.
Okay we got 1 day 13 hours down to 30% with 30 min of screen time. Next up is the Juice Defender Ultimate with night settings off.
An update for you all. As you can see JuiceDefender has already passed the "vanilla" time.
I had an odd problem. Sometime during night, the battery suddelny decided to drain at much faster rate and it took it only 6 hours or so to drain from 75% to 15%. I checked with BetterBatteryStats but there seems to be no app that has kept it awake. Anyway, I can't continue with this test spimply because I don't have time for reruns.
What I can say in previous experience:
Vanilla
Great that as soon as a message comes in you get notified immediately.
Unfortunately that's because wifi or data is kept on all the time, draining battery.
JuiceDefender
Usually gives my phone 3-4 days of battery.
It does take some time (up to 15 sec or so) when you unlock the screen to connect and that can be annoying if you are in a hurry.
When I have night settings on to set phone in no vibration, no sound but also have different night setting time for weekends the phone vibrates once at midnight between weekdays and what JuiceDefender recognizes as weekend.
Sometimes it doesn't feel like the apps are updating even though settings are set to allow "dumb apps" to update as well as plenty of time to do so.
GreenPower
I have only had time to use it for a few days and it is only the free version. I will probably buy the premium soon.
It has a better UI than JuiceDefender though not so many settings. I'm not really sure if I need those other settings.
Best thing, it connects instantly to data when I unlock the phone so I can get on to the web or viber or such to see messages directly.
If anyone wants to continue this thread you may do so but I won't make more test as for the moment. Bottom line is that the data turning off when phone's locked really do help with battery life.
Hey guys. I just got a Nexus 7 recently (sold used, but "like new", description said it was used briefly for a day and then packed back in the box again). It was working really well until I flashed this kernel. I had CM10.1 on it for a while and flashed that kernel so I could use CIFS.
After I tried this, I saw the the battery had gone from around 75% to 55% one night (over 8 hours). This is much worse than it was before, where it would only drain around 3%, or at most 5%.
I understand that my issue is probably simple: Just flash a different/old kernel or a new ROM and see if it helps. But I was wondering if there's a way to see specifically what is draining the battery. I tried getting Battery Analyzer, but says that "android keyboard" uses the most CPU, and the actual battery settings says, other than the screen, that "Media Server" is using 8% of the battery, as well as System Idle or something.
I don't know what this means exactly. But I do want to know a couple of things:
1. How can I know for sure what is causing the battery drain. Is there any way to figure it out?
2. How can I troubleshoot this, that is, I want to try disabling features and seeing how much the battery drains after that.
In the mean time, I'm gonna flash a different ROM and I'm sure that'll fix it for now. But I'll have a NAND backup just in case.
http://forum.xda-developers.com/showthread.php?t=1179809
Install. Follow directions. Post log as an attachment into their thread asking for help.
High loss while idle implies wakelocks and possibly CPU activity.
I actually found this before and tried it. It showed something with Google+ being highest with partial wakelocks, though I didn't fully understand it. I ended up removing the G+ widget from my home screen on a whim and it seemed to help a lot, only reduced 3% over 8 hours. I'd like to improve even that if possible, but that's how it was when I got it, so I'm really pleased with that. And hopefully it's not a fluke, I'll have to see what happens another night.
Thanks anyway. I'll monitor it more and see if there's anything else I can do.
I use System Tuner to set the off-screen CPU max to 384, seems to help a lot.
ES-5000 said:
I actually found this before and tried it. It showed something with Google+ being highest with partial wakelocks, though I didn't fully understand it. I ended up removing the G+ widget from my home screen on a whim and it seemed to help a lot, only reduced 3% over 8 hours. I'd like to improve even that if possible, but that's how it was when I got it, so I'm really pleased with that. And hopefully it's not a fluke, I'll have to see what happens another night.
Thanks anyway. I'll monitor it more and see if there's anything else I can do.
Click to expand...
Click to collapse
go to recovery mod__ try clear battery status etc..
ghao said:
go to recovery mod__ try clear battery status etc..
Click to expand...
Click to collapse
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May have well just have told him to only touch his tablet on even numbered dates and to only charge it face down on an espresso colored end table. They have the same effect on battery charge and indication that wiping battery stats does. The myth of wiping battery stats was clearly and concisely given an official debunking about a year and a half ago. If anything, wiping battery stats will hinder the OP, not help.
ghao said:
go to recovery mod__ try clear battery status etc..
Click to expand...
Click to collapse
And how am I suppose to do that???
ashik992 said:
And how am I suppose to do that???
Click to expand...
Click to collapse
It's not important, as it does nothing for battery life.
ES-5000 said:
Hey guys. I just got a Nexus 7 recently (sold used, but "like new", description said it was used briefly for a day and then packed back in the box again). It was working really well until I flashed this kernel. I had CM10.1 on it for a while and flashed that kernel so I could use CIFS.
After I tried this, I saw the the battery had gone from around 75% to 55% one night (over 8 hours). This is much worse than it was before, where it would only drain around 3%, or at most 5%.
I understand that my issue is probably simple: Just flash a different/old kernel or a new ROM and see if it helps. But I was wondering if there's a way to see specifically what is draining the battery. I tried getting Battery Analyzer, but says that "android keyboard" uses the most CPU, and the actual battery settings says, other than the screen, that "Media Server" is using 8% of the battery, as well as System Idle or something.
I don't know what this means exactly. But I do want to know a couple of things:
1. How can I know for sure what is causing the battery drain. Is there any way to figure it out?
2. How can I troubleshoot this, that is, I want to try disabling features and seeing how much the battery drains after that.
In the mean time, I'm gonna flash a different ROM and I'm sure that'll fix it for now. But I'll have a NAND backup just in case.
Click to expand...
Click to collapse
Try turning off the daydream. Though it shouldn't be the problem. and please attach the screen shot of your battery usage it may help us to find out what's wrong.
Install cpu spy app frm playstore nd chk ur mobile is getting deep sleep mode or not....!!
Sent from my LG-E975 using xda premium
Guys, I am getting terrible battery life on the newest BajaRom. I was getting decent battery life but somehow everything changed. I want to note that I cannot access the Media Battery Drain Fix in the BajaROM settings as it crashes EVERYTIME i open it. I have tried everything to install something that will fix media battery drain but I am unsure if this is what is really causing my battery drain. Please any help would greatly be appreciated!
Installed on STOCK slot
SYNC, Bluetooth: OFF
Powersaving/Smart Network: ON
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Nobody?
Wakelock Detector and Greenify... are ur best friends on the Note 3.
Turnoff wifi,bluetooth,gps,etc when not in use. Set CPU to on demand. I always have power saver on unless I want to run a game... doesn't seem to effect anything else.
There are a ton of tips for Note 3 battery life...just search here...
I also use LUX for screen brightness, that made a big difference also. Change you wallpapers to darker colors... mine are some sort of black background...
I can make through the day with reasonable usage on Hyperdrive RLS8 and still have battery left...
Haven't tried BajaROM yet...
dasdman said:
Wakelock Detector and Greenify... are ur best friends on the Note 3.
Turnoff wifi,bluetooth,gps,etc when not in use. Set CPU to on demand. I always have power saver on unless I want to run a game... doesn't seem to effect anything else.
There are a ton of tips for Note 3 battery life...just search here...
I also use LUX for screen brightness, that made a big difference also. Change you wallpapers to darker colors... mine are some sort of black background...
I can make through the day with reasonable usage on Hyperdrive RLS8 and still have battery left...
Haven't tried BajaROM yet...
Click to expand...
Click to collapse
Thank you for your response. I have greenify'd most of my daily apps and I use wake lock detector and still cant find out the culprit here. It says that my SCREEN is taking up 30% of my battery life after just 2 hours unplugged and minimal use and I'm down to 82%. Can my phone just be inherently defective????
This DOESNT feel right. I NEVER had any complaints of battery with my NOTE 2
Sex
badboyg200 said:
Guys, I am getting terrible battery life on the newest BajaRom. I was getting decent battery life but somehow everything changed. I want to note that I cannot access the Media Battery Drain Fix in the BajaROM settings as it crashes EVERYTIME i open it. I have tried everything to install something that will fix media battery drain but I am unsure if this is what is really causing my battery drain. Please any help would greatly be appreciated!
Installed on STOCK slot
SYNC, Bluetooth: OFF
Powersaving/Smart Network: ON
Click to expand...
Click to collapse
Check your data usage. I had the similar situation, saw nothing in the battery usage area....but then checked data usage. I had over 2 Gigs of data usage from EMAIL in only 2 weeks! I had been using the std email app...and get maybe 10 emails a day. Obviously something goofy going on in the sync. Yet battery usage showed next to nothing for the sync process or email app.
I removed my accounts from the email package, froze the email package and installed AquaMail and my battery usage cut by at least half....my data use flatlined.
Obviously it takes power to use the radio for a Gig a week of data....but that does NOT seem to show in battery usage.
so check your data usage...see if email is way out in front. That may be your problem.
Sent from my Note 3 via Tapatalk
badboyg200 said:
Thank you for your response. I have greenify'd most of my daily apps and I use wake lock detector and still cant find out the culprit here. It says that my SCREEN is taking up 30% of my battery life after just 2 hours unplugged and minimal use and I'm down to 82%. Can my phone just be inherently defective????
This DOESNT feel right. I NEVER had any complaints of battery with my NOTE 2
Click to expand...
Click to collapse
I had the same issue with battery life after I flashed to and of the KK roms. My problem was Greenify, and I don't know why. Removing it didn't solve my problem so I'd restart from the beginning. My drain is less than 1% per hour idle without it and almost 10% per hour running all the same apps with greenify in different settings. Jasmine ROM just drained for me all the time.
*first post, be nice. I only joined because of all the trouble I went through to get my battery life back.
I've been experiencing serious battery drain lately.
Lasts around 6 hours tops.
Check out the stats. Anyone know how to prevent this?
Drain is almost 3:40 min / 1% discharge.
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Check if your phone turns off the display after the display timeout. I have seen this happen in Moto X sometimes.. It just stays awake. Restart fixes it.
How about brightness? Set it in Auto Brightness mode. Check your Settings->Display page and check all the fields. Apart from that Screen taking 38% is surprising.
rishi.gohil said:
I've been experiencing serious battery drain lately.
Lasts around 6 hours tops.
Check out the stats. Anyone know how to prevent this?
Drain is almost 3:40 min / 1% discharge.
Click to expand...
Click to collapse
I've been having the same problem. I updated a bunch of apps yesterday, (mostly Google apps) and it the battery seems to be better today. It may be too early to tell, but I'm hoping it was one of the Google apps that draining the battery and that it was corrected with the update.
Glad to see I'm not the only one who's battery suddenly got a lot worse. I thought it was Snapchat since I had started using it recently, but the battery usage page doesn't reflect that.
One thing to check is the awake time. If you notice that your device seems to be awake all the time, I'm willing to bet that it has to do with google play services.
If rooted, there is an easy fix via gservices app on market.
Sent from my Moto X using XDA Free mobile app
I'm having the same issue. Really only getting about an hour of screen time these days. When I first got the phone it was 2+ hours. Mostly use WiFi vs cellular for data, which I thought should be more battery friendly. I make sure I don't have apps running... I'm thinking maybe my battery has just been getting weaker over time.
Here's a good read on battery wear http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
If you charge once a day like everyone the battery decreases by 15% after a year.
soxfan37 said:
I've been having the same problem. I updated a bunch of apps yesterday, (mostly Google apps) and it the battery seems to be better today. It may be too early to tell, but I'm hoping it was one of the Google apps that draining the battery and that it was corrected with the update.
Click to expand...
Click to collapse
I downloaded the gapps fixer from the Play Store but after installing it and rebooting I could no longer send e-mails via the gmail app (clicking the "send" icon would do nothing)
guruzen said:
Check if your phone turns off the display after the display timeout. I have seen this happen in Moto X sometimes.. It just stays awake. Restart fixes it.
How about brightness? Set it in Auto Brightness mode. Check your Settings->Display page and check all the fields. Apart from that Screen taking 38% is surprising.
Click to expand...
Click to collapse
Brightness is already set to auto. Also, I've check the settings and display page. Its as it should. I wiped out cache partition and it improved a little. Though I didn't saw significant change by doing that. It still runs for max 6-7 hours. That's it.
have you tried to clean battery stats from recovery?
eldar4uk said:
have you tried to clean battery stats from recovery?
Click to expand...
Click to collapse
Doesn't actually do anything. People need to stop facilitating this dumb myth.
Google said:
This file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you. It has no impact on your battery life.
Click to expand...
Click to collapse
rishi.gohil said:
Brightness is already set to auto. Also, I've check the settings and display page. Its as it should. I wiped out cache partition and it improved a little. Though I didn't saw significant change by doing that. It still runs for max 6-7 hours. That's it.
Click to expand...
Click to collapse
May be u need to calibrate your battery. Try to put the phone in charge and let it reach 100% and post that dont remove the charger for 4-5 hours. This is a method to calibrate. Try this and lets see if it helps.
And, I see that you are in H+.. Try using your phone in 2G for a day and observe the battery patterns.
You should clean battery stats from recovery.. Have you tried this?
Mine will drain fast but then it will sit at 1% for several hours before finally shutting off. I have not found a fix and it's been going on for a few months now.
SmokeyDP said:
Mine will drain fast but then it will sit at 1% for several hours before finally shutting off. I have not found a fix and it's been going on for a few months now.
Click to expand...
Click to collapse
u let the battery die out then recharge to full without switching it on. Once complete boot the phone and when booting is complete then remove the charging cable.