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Hey everyone,
I'm not sure if I have an issue with a defective Captivate or if it running as intended. That's why I've come to you guys for some insight.
Here's my scenario:
A few days ago, I decided to leave my Captivate off of the charger overnight to see how much battery I would awaken with. It was just a little experiment I thought of to see how much the battery drains while not having anything intensive to do (such as power a screen). I fully charged the Captivate to 100% before setting it on my desk and going to bed. As normally, everything was turned off except wi-fi. When I awoken the next day (8 hours of sleeping), to my surprise, my battery was down to 27%. I was shocked that something could have drained almost 70% of my battery overnight. I downloaded an app called Spare Parts as a recommendation by some people and I seen "Running 100%" which means that the phone spent no time sleeping. When I look at any partial wakelocks, it showed "Android System" as a full bar. I assume that it could be a bad app that was keeping my phone from sleeping.
I restarted the phone, battery pulled, charged up and uninstalled some apps. Everything seemed back to normal as when I checked the the running %, it was proportionate to how often I was using the phone (not at 100%). I specifically checked if the phone was sleeping and it was through some monitoring. I would use the phone for 1 minute and then let it sleep for 2 minutes and you could see that the running % went down, as it is suppose to.
I kept monitoring the running % over the course of the day and it was fine. The less I used it, the lower the % would go; the more I used it, the higher. I also monitored what kind of apps I was firing up and I specifically made it an effort to not open any apps that were out of the ordinary. If I did, I checked to see if it kept my phone from sleeping and it did not (through my same usage tests as above). However, even after my close monitoring, sometime during that day, my phone would stop sleeping once again. I could tell because my running % never lowered, no matter how long I didn't use my phone. It would keep climbing which means it no longer slept. I made sure that I didn't do anything out of the ordinary too as I used the same apps as I did when the phone was sleeping fine. I checked "Android System" and it was getting larger. The battery was around 80%.
I charged up the phone again to max and made sure that nothing was preventing my phone from sleeping. Did the tests again and running % was proportionate again and I double and tripled checked to make sure the phone slept. I then left the phone not charging again to see what would happen as I would have no interactions with the phone to open any apps or change any settings. To my surprise, my battery was down to 60% (~ 6 hours of sleeping) when I awoke. I checked the running % immediately in the morning and it was at a very high percentage. "Android System", once again, dominated the partial wakelock portion.
So what's going on here? It doesn't actually seem like I'm doing anything on the user end to prevent the phone from sleeping. How come it decides to act up all of a sudden? If it was a bad app, how come it decides to prevent sleeping all of a sudden and not before? Even if it was a bad app, I didn't even launch anything while sleeping. Does the phone decide all of a sudden to stop sleeping?
The apps I use are:
Tasker
Y5 Battery Saver
Launcher Pro Plus
Twitter
SwiftKey
NHL Gamecenter
Handcent SMS
doubleTwist
Dropbox
Does anyone have the same problem?
Any help is appreciated.
Get rid of any task killers and battery savers they do more harm then good and most developers recommend not using them, they cause battery drain. The only battery app I use is Juicedefender because it keeps the phone from connecting constantly and keeps apps from running in the backround. I set it to connect every 15 min for 1 minute to sync, I turned off all notifications because they annoy me and I don't need to be notified everytime I get an e-mail or someone posts on Twitter or FB. My battery life has improved greatly once I dumped task killer. Also, I am running a Froyo mod and my battery is amazing now and my GPS works.
If you are in an area with a weak signal this will kill your battery because your phone is constantly searching for a signal and trying to connect. Also turn off wifi if you are not near wifi this will save battery.
Also try calibrating your battery and bump charge it. Here is a link for that. http://forum.xda-developers.com/showthread.php?t=765656
The battery will improve, mine got better after a few weeks of break in. I am at 60% been unplugged since 10 am and I made plenty of calls, checked e-mails, sent e-mails, checked XDA developement all day and I have plenty of juice.
Good infos. O agree with not using task killer
Sent from my SAMSUNG-SGH-I897 using Tapatalk
Hmm, thanks for the tips but there still seems to be something lingering around in my system that doesn't allow the phone to sleep. It seems to activate all of a sudden as well without user intervention.
I again left it overnight and it drained again when I woke up. I lose significant battery overnight when I sleep. I'm thinking about just restoring to factory settings. I've only had the phone for a week so I wouldn't lose that much data. I'll monitor it from the onset once I factory reset it and see if it's a hardware defect or something that was bad in my phone.
Do you have a live wallpaper installed? Also, do you have a bunch of Widgets on your homescreen? Are you constantly synching with e mail, FB, etc? No doubt something is running all night. It's not the phone, it's something you have installed. I set mine to sleep with Juice defender at night so nothing syncs. Check your wireless bill to see how much data is being sent while you sleep. Why not charge your phone while you sleep?
Sent from my GT-I9000 using XDA App
Nope, no live wallpapers and the only widgets I have on my home screen are the LauncherPro Plus widgets, Smooth Calendar and BattStatt. The only syncing I have going on is Google Calendar and Gmail but both of those shouldn't cause the phone to not sleep.
I was thinking of using Juice Defender but I would rather just get to the root of whatever app is preventing my phone from sleeping and kill it at the root instead of finding workarounds. For all I know, my phone may not be sleeping not just overnight, but with normal use as well and it would adversely affect battery life throughout daily use. I need the piece of mind that my phone is properly sleeping.
And I have no issues with charging while I sleep, but again, I need to find the root cause. If for whatever reason I'm can't access a charger overnight in the future (such as if I sleep over at my gf's house), I want to know that I won't wake up with a dead battery in the morning.
I really appreciate the help though.
As for what I decided to do next, I actually factory restored my phone yesterday morning and so far it is working well. I did not download any apps at all to make sure that this problem didn't persist with a stock phone. If it did, I would know that it's a phone defect and not something I did. Throughout the next week, I'll be installing different apps one by one to see any one of those apps will cause my phone to not sleep. This will allow me to isolate the app. It's long and tedious, but I would go through it for better battery life. So far, it's been working as I'm already through 10 hours on my phone with moderate use and it's only at 50%. Whatever was destroying my battery before absolutely had an effect on my daily battery life as I would struggle to even get 10 hours on my phone with moderate use.
Same Here
I find your post very interesting. I have not yet used Juice defender, however, I am now more keen to battery drainage. I talked on the phone for about an hour the other day and my battery went from 100% to 40%. I find this unacceptable for a phone. Imagine taking conf. calls and conducting business in the field throughout the day. My battery would be dead in two hours without checking email
I hope you can reveal your findings to help us all.
Regards,
JROCK
Battery problem fixed using the simple technique similar to the one shared back in this thread.
I used to lose 10% per hour (or there abouts) and by 5 or 6pm needed to go on charger. At the very best with no use it dropped 3-5% in an hour.
Now its all changed...
After being off the charger for 35 min and taken 2 calls and sent a couple of txts she still read 100%.
At 5hrs 17min off the charger it is at 81% and there has been 6 calls in total and about 9 txts, plus a couple of appointments added.
Here is what they said to do and it worked...
1. Charge the phone for 8 hours, but make sure it is turned on while charging.
2. Unplug the phone, turn it off, plug it back in for 1 hour.
3. Unplug it, turn it back on for 2 minutes, then plug it back in for 1 hr.
Then unplug and enjoy the new battery life
Sounds too easy to work, but bugger me, it did!
27% is clearly abnormal.
Sometimes, I put the phone on it's charger after a pull day only using 27%.
I read somewhere on XDA that some early phones had defective screens that would only shut the backlight off and not turn off completely. Don't remember what came of that thread though.
I have a battery drain issue as well. My Captivate is 2 days old and been charging it every night. The first charge was done via the computer while transferring music over. After moderate usage (1 hour of music, browsing apps, learning how to use the phone, etc.), the battery died after 10 hours. GPS, and bluetooth was turned off. WiFi was used for maybe 20 minutes. When I got home, I charged it overnight for around 10 hours.
Today, the phone died on me after 9 hours. I rooted via z4root and applied RyanZa's latest OneClickLagFix, which both apps can be found on the market. Before that time, the battery said there was about 80% remaining. Fast forward to 6 hours later and the battery is gone. Again, moderate usage.
According to *#*#4636#*#*, my Screen On is at around 60%. A few other bars are pretty high as well, but I'm not sure how to do a screenshot on the Captivate right now. The only method I found requires using a PC. Plus, my battery is dead meaning I have to charge it overnight again.
I had an issue for the last couple of days, just figured it out earlier today. I had a corrupt thumbnail file on the external SD so my android.process.media (something like that) was constantly running.
I first realized something was wrong before I determined the battery life was bad when I noticed that my CPU was constantly at 11470-1200mhz or 975-1000 when I disabled the OC.
Unmounting the card would allow the CPU to drop to under 200 at idle so I knew it had something to do with the external SD. Turned out there was a bad file under a DCIM (camera folder), so after I deleted it, it became smooth as silk!
Of course it's still an i9000 rom so battery life is still questionable
geokilla said:
According to *#*#4636#*#*, my Screen On is at around 60%. A few other bars are pretty high as well, but I'm not sure how to do a screenshot on the Captivate right now. The only method I found requires using a PC. Plus, my battery is dead meaning I have to charge it overnight again.
Click to expand...
Click to collapse
Try Shoot Me
Sorry for the hijack!
Here are yesterday's results:
Does these results look normal to you? I'm particularly concerned about the Social Hub and screen, and running. They're all higher than I expected. The brightness of the screen is set pretty low, maybe 2/10 of the brightness bar. As for Social Hub, well all I got is the Facebook widget, which is set to sync every 4 hours. Other kinds of syncing is off. GPS is off too. I don't have any battery saving type of apps yet, except for RyanZa's OCLF which includes the WiFi timeout.
I ended up charging the phone at 5% battery left. I had to sleep!
My battery life was fcuked: losing 40%-%50 overnight while it was inactive sitting on the nightstand.
(Factory reset did not help at all!)
Now after futzing with the WIFI setting, last night I lost only 5% total in 8 hours sleep time.
Furthermore battery read 18% remaining at 10:30 PM and still read 18% at 4:17 AM.
Now this is more like what my iPhone 6 gets while sleeping.
What seems to have fixed by battery woes.
I changed the (Advanced) WIFI frequency setting from Automatic to 5Ghz (which would not work at all) and then to 2.4 Ghz only.
As of today I have 87% remaining after 3 hours of casual use (after charging to 100%.) Previously (for the past week since installing Lollipop) I was losing about 25% per hour during casual usage - ridiculously bad battery life.
Hopefully this will work for someone other than myself. I had just listed this thing on Craigslist because I cannot use a phone with 4 hour battery life.
Good luck.
Just set it to the same WiFi setting, will get back with screens.
Thanks though, I have brought this phone recently and thought it was only me getting bad battery life :\ I've had to charge this phone more than I did my nexus 4. I brought it off someone after they had used it for 9 months.
mine
Mine loses 1 or 2% overnight with wifi left on. Luck of the draw i guess.
trsix said:
Mine loses 1 or 2% overnight with wifi left on. Luck of the draw i guess.
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Click to collapse
trsix, what wifi frequency is yours set to? And did you ever alter the freq. setting?
Thanks.
ronnienyc said:
My battery life was fcuked: losing 40%-%50 overnight while it was inactive sitting on the nightstand.
(Factory reset did not help at all!)
Now after futzing with the WIFI setting, last night I lost only 5% total in 8 hours sleep time.
Furthermore battery read 18% remaining at 10:30 PM and still read 18% at 4:17 AM.
Now this is more like what my iPhone 6 gets while sleeping.
What seems to have fixed by battery woes.
I changed the (Advanced) WIFI frequency setting from Automatic to 5Ghz (which would not work at all) and then to 2.4 Ghz only.
As of today I have 87% remaining after 3 hours of casual use (after charging to 100%.) Previously (for the past week since installing Lollipop) I was losing about 25% per hour during casual usage - ridiculously bad battery life.
Hopefully this will work for someone other than myself. I had just listed this thing on Craigslist because I cannot use a phone with 4 hour battery life.
Good luck.
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Click to collapse
try setting it back to auto and see what happens. IE, try to replicate the issue and the fix.
For me, I went back to KK 4.4.4 factory image and took OTA seems to fix the wifi idle to just same as OP overnight (~5%). But after some use, it can drain quick but not as quick as I was on custom ROM (all kinds I tried).
ronnienyc said:
Furthermore battery read 18% remaining at 10:30 PM and still read 18% at 4:17 AM.
Click to expand...
Click to collapse
This can happen when the phone is being moderately used before a longer idle period. The battery percentage will actually go up to compensate for the earlier usage estimation, giving the illusion of zero drop over night. It becomes clear after seeing the graph and the line going up only to drop down to the pre-idle level.
Kind of annoying since I'd like to see how much was actually lost over night. Just something that happens with the estimation process that is our battery level.
I recently switched from 2.4Ghz only back to Auto mode as it seems the WiFi speed drop issues are no longer present on my particular home network. No battery drain or issues yet but I will keep a close eye on it. Thanks for sharing.
bblzd said:
This can happen when the phone is being moderately used before a longer idle period. The battery percentage will actually go up to compensate for the earlier usage estimation, giving the illusion of zero drop over night. It becomes clear after seeing the graph and the line going up only to drop down to the pre-idle level.
.
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Click to collapse
I think your statement is true, as I noticed that with OTA updates, my idle over night is very low. However, upon using the phone the battery immediately starting to report drastic drop in percentage number. I mean this is cruel as in it gives us a false sense of battery consumption over all lol.
I will try it thanks
I'm going to give this a try. I've been using an app to turn wifi off when asleep but am still getting higher drain on wifi with the screen on than should be. Will report back after a day or two.
Personally I don't think they fixed the wifi miscellaneous drain and just hid it in the usage stats. My battery life has never been the same since the final dev preview. Luckily I'm always near a charger.
vboyz103 said:
I think your statement is true, as I noticed that with OTA updates, my idle over night is very low. However, upon using the phone the battery immediately starting to report drastic drop in percentage number. I mean this is cruel as in it gives us a false sense of battery consumption over all lol.
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Click to collapse
Did you guys read the entire OP?
I have had an overall drastic improvement in battery life - not merely during idle time
ronnienyc said:
Did you guys read the entire OP?
I have had an overall drastic improvement in battery life - not merely during idle time
Click to expand...
Click to collapse
Right, I did read the OP and actually did make the same adjustments. However, I didn't see any improvements on my KK 4.4.4 upgraded to L via OTA in terms of idling overnight. My idle stats are very good even prior to the adjustment mentioned and same post adjustments. However, the freaking issue is when I started using the phone.
I think it is varies wildly for each user and their phone.
" the freaking issue is when I started using the phone.”
Indeed, this is another issue with this phone. Battery is too freaking small.
At this point i am back on my iPhone 6. iOS is a bit rigid for my taste, but the thing is fast, great screen, and runs two days on a charge, call quality is superior, louder speaker, etc!
Battery life is critical, yo.
ronnienyc said:
" the freaking issue is when I started using the phone.”
Indeed, this is another issue with this phone. Battery is too freaking small.
At this point i am back on my iPhone 6. iOS is a bit rigid for my taste, but the thing is fast, great screen, and runs two days on a charge, call quality is superior, louder speaker, etc!
Battery life is critical, yo.
Click to expand...
Click to collapse
I feel ya, I tried a 5s and iOS 7 out for about 6 months because it looked nice. Had great battery life until I had to jailbreak it to get it to do what I wanted (which is stock/non root stuff on android) and apps from cydia rocked my battery ;-( then it was like why am I having to tweak the crap out of this phone to do simple things I want that shouldn't be a big deal in the first place? Finally just decided to come back to my N5 in the end.
vboyz103 said:
Right, I did read the OP and actually did make the same adjustments. However, I didn't see any improvements on my KK 4.4.4 upgraded to L via OTA in terms of idling overnight. My idle stats are very good even prior to the adjustment mentioned and same post adjustments. However, the freaking issue is when I started using the phone.
I think it is varies wildly for each user and their phone.
Click to expand...
Click to collapse
This. I hate how much my battery drains when my screen is on. I'm convinced some of it is Lollipop though. I got a feeling it is also related to the memory leaks.
Sent from my Nexus 5 using XDA Free mobile app
@Clienterror
Agreed about ios, but it is getting better. The notificatiins just got a lit better....little things are slowly improving.
Something that is GREAT on iOS now: voice to text is screaming fast now, and extremely accurate. I rarely type emails and texts now. No kidding!
I went back to 4.4.4 last night - as while the idle drain was fixed with these settings, the overall battery life while using the phone under LL is still relatively miserable.
4.4.4 seems a bit better...
Now I see that 5.0.1 is apparently being released in the next day or two...we shall see. So far the release notes say nothing about a battery fix.
On 4.4, I observed a massive reduction of WiFi wakelocks by setting static IPs in my home network. So if you have problems, give it a try.
is it possaible some app drain it in overnight?
Does no one else realise that a major OS update needs to "bed in" for a good few days? The battery life performance is a lot better on LP. I've an HTC desire 610 though and it goes days between charges. It's a 420 battery but 1/4 hd screen. You take your choice of features and find your phone/s
I let it charge to 100% around 1am, unplugged and work up at 730am. Battery was on 85%. No use at all.
During regular use it seems to drain quickly. I've disabled probably 20 apps.
EVOme said:
I let it charge to 100% around 1am, unplugged and work up at 730am. Battery was on 85%. No use at all.
During regular use it seems to drain quickly. I've disabled probably 20 apps.
Click to expand...
Click to collapse
I have my edge since Monday and what you're saying I have not experienced. Post some screen shots of your battery stats so we can have a better idea of what's going on
EVOme said:
I let it charge to 100% around 1am, unplugged and work up at 730am. Battery was on 85%. No use at all.
During regular use it seems to drain quickly. I've disabled probably 20 apps.
Click to expand...
Click to collapse
I went to bed around 1am as well, woke up at 9:30am. I also disabled around 20 apps. Bedtime battery was at 95% wake up battery was at 85%. I dont think thats too bad at all.
I'm pretty happy with my battery life so far
Does Verizon have an immediate ota update like tmobile? I didn't he update right away and seems solid enough. Not as good as my g3, but way smaller of a battery in the edge.
Disable the Amazon App Suite from Applications manager. This has been the culprit for every carrier on the S6. If you use Amazon app store, download it through amazon directly (it is a different app than the one included with the phone).
Your problem will be solved right away!!
Also, the Edge display (not the contact color part, but the clock and news feed) is a battery drain.
another problem with alot of s6 owners, aside from the stock amazon app, is there has been alot of battery drain if using wifi. I had wifi on most of the time and noticed a drain from cell standby... once you turn off the wifi that never comes up and drain is perfectly fine... no cell standby battery drain...
My battery was terrible the first day, ok the second day, and far better today. Seems like it has a time it needs to settle down.
I haven't gotten >3.5 hours screen on time yet. Which kind of stinks.
Disabled a few more apps today, will see if they helps any.
Sure have been getting use out of the quick charging though.
Yesterday my phone took a change in the battery department....
EVOme said:
Yesterday my phone took a change in the battery department....
Click to expand...
Click to collapse
Wow!
What's your screen-on time? Power-saving enabled at any moment?
open1your1eyes0 said:
Wow!
What's your screen-on time? Power-saving enabled at any moment?
Click to expand...
Click to collapse
Sorry, I didn't look at that before I plugged it in.
Almost 6 hrs of screenon time use, Netflix for 30 mins...Facebook and texting. Screen set at around 30% brightness. Happy with my S6.
Not disappointed in how short the overall battery is...it does what I want and need it to do.
Yesterday my phone was dead from 6am to 6pm today at 5pm still have 47% left and I definitely used it more today. Better with age?
Hello I just gave my first full charge to my phone and the cell stand by is at the top, is there a way to avoid this or we going to accept to live with it, thanks for your help.
my battery wasn't too bad either
Just curious on people's battery life experiences so far. This seems to be the main negative I hear about this device from reviews. I am most likely going to get the device nonetheless.
I don't feel like the battery life is that bad on this device.
I can get through a hole day very easily. I play some games (but not that much), I listen to a lot of music and I use Chrome very often.
Still I have about 40% at the end of the day.
For a device with a 1440*2560 5.7 inch screen and a Snapdragon 810 I reckon that it is pretty good.
I can only tell you to get this device it is awesome
Battery life for me is pretty terrible. The battery drain is significant even when the phone is in idle. I usually have access to a charger throughout the course of a day and I feel the need to keep it connected as often as possible. I still love the phone, but the battery life is the worst I have experienced with any phone I have had in the last couple of years, and I have used many. I leave it on balanced mode for the majority of the day and only switch to performance mode when I am going to play a graphic intensive game.
JeffSGeorge said:
Battery life for me is pretty terrible. The battery drain is significant even when the phone is in idle. I usually have access to a charger throughout the course of a day and I feel the need to keep it connected as often as possible. I still love the phone, but the battery life is the worst I have experienced with any phone I have had in the last couple of years, and I have used many. I leave it on balanced mode for the majority of the day and only switch to performance mode when I am going to play a graphic intensive game.
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Click to collapse
Yikes. Have you tried any software like Greenify to help alleviate the problem or it still persists ?
thendless said:
Yikes. Have you tried any software like Greenify to help alleviate the problem or it still persists ?
Click to expand...
Click to collapse
No, I haven't tried any apps or other battery profiles. Like I said, I keep it plugged in a lot during the day, so I have never felt the need to see how far I could stretch a single charge. This is also the way I have kept all of my previous phones and the Xiaomi drains the battery the fastest in comparison.
Mine lasts me about 12hours. I listen to music most of the day and I'm a heavy user.
Got the phone 2 days ago. got around 4 hours 15 minutes SOT from 7am till 9pm on the international rom. Better than i was expecting. Hopefully I can improve it further.
I have to admit that over time the battery got worse. That would be because I have more apps etc..
What is your SOT time usually?
I noticed today my battery SOT and idle drain has been really bad. The only thing I think I did diffrently was that I logged onto my miui account last night so i could download themes. I have no use for the miui account other htan the themes so I will try logging out and seeing how things are after it....
2-9% per hour is not bad i guess...
If i use it a lot, then only it will go as far as 11% per hour and mostly because the big QHD screen,
When it sleep, it almost didnt drain...
Of course you have to kill/disable all those stupid google play services... Named it Event Log and Checkin handoff etc etc
otonieru said:
2-9% per hour is not bad i guess...
If i use it a lot, then only it will go as far as 11% per hour and mostly because the big QHD screen,
When it sleep, it almost didnt drain...
Of course you have to kill/disable all those stupid google play services... Named it Event Log and Checkin handoff etc etc
Click to expand...
Click to collapse
Are you still using the Mi note pro?
Hello!
I've been experiencing worse battery life on my Nokia 8 since Pie upgrade, I haven't installed any apps nor services...
Note that the battery improved -but not as good as Oreo- after calibration using an app...
Are you experiencing the sane issue? Or should I further investigate?
Thank you..
yes
Same here. I got 12 hours screen on time once on oreo but now, it is a dream. Battery drains fastly due to background services. App restriction doesn't work as well as oreo's restriction. So, this situation causes battery draining. Also there is a weird thing i've faced, battery drains quickly from %100 to %95. I am waiting for Maintenance Release impatiently.
is battery life on oreo really that good?
I'm using pie since day 1 and never got more than 7h sot and 1.5 days.
My battery life is dire since pie, I was impressed with the battery in the 8 until this update, I cant even make a day without having to charge. When I say day I mean from 7am to 10pm as its left charging overnight.
Before pie I could quite happily last 2 days between charges, I'm not a heavy user, initially I thought I must be using the phone more. But I'm actually using it less just so it makes it to the end of the day!
Somehow it's worse again today, dead by 4:30!
Basically just checked phone to see the time, around 10 minutes of faffing in the morning, rebooted it before charging last night incase sonething was using battery. Madness!
For me, I've given my phone a factory reset before I installed the Beta labs/initial final(V5.110, December 2018-January 2019) build. Despite that, I did notice my battery life taking a hit when running this iteration of Pie. I was at most getting not more than 5 hours of SoT on average. And I do use my phone a lot throughout the day, the camera, web browsing, videos and social media. Meanwhile on Oreo, I can get 6 hours on average no problem. Sometimes even 7 hours if I'm lucky.
After updating to V5.140(February 2019) with Adaptive Battery brought in, I seem to have gotten back my average SoC just like when my phone was running Oreo. Running 5-6 hours on average. I'm not sure if Adaptive Battery has anything to do with this since I did notice the improvement immediately. I also disabled some of the Evenwell crap before updating to V5.140, so that may or may not have an effect.
If apps restricted didnt work then try manually restrict each app go to ur up hold it then info Then choose battery from there change background restriction
Ifaced this problem in beta when iwas sleep and wake up morning my battery was almost below 20 percent but i manually restrict all apps and its working 100 percent ?
Sorry to heat that. Have you tried installing some apps like better battery stats to see what exactly is saying up your battery? If your phone is rooted consider installing ForceDoze from f-droid and maybe WakeBlock to regulate some wakelocks that may be the cause of your terrible battery life. I have been able to get great battery life using the latest put version. See screenshot below from a few days ago.
I know that this is old thread but i have solution which i use with my nokia. change default launcher to another lightweight. This works and my battery feel better.
I should of updated, battery went back to normal after newer updates.
However, biggest thing for me, using DNS666 Ad blocker has seemingly doubled my battery life, might be a combination of just gotten bored of the phone or blocking all the ad's saves battery, or a bit of both, its also made the phone feel a lot more responsive overall, i'm using Squarehome as my launcher so maybe that was affecting the battery before?
Maybe which update can fix battery life? I rooted my phone and can't download latest update.