My Evo battery is draining at a rate that is all together too fast. I took it off the charger about 3.5 hours ago and it has drained about 30-40%. I have not made a call nor used the net at all save for the receipt of 3-4 emails. I had a rooted phone but I reset the phone back to complete unrooted stock. I have not even so much as installed an app. What can I do about this?
turn off your mobile data when not in use. This will save tremendous amounts of battery.
if you search the forums you should find countless threads on battery and how to find out what is draining your battery and to extend life.
not sure why you would unroot unless you were exchanging it at sprint store but it greatly limits what you can do to help prevent battery drain. If you dont want to mess with much jsut use a rooted stock rom and it is pretty much the same thing as being unrooted but you keep the extra rooted benefits.
your best bet on non rooted device make sure mobile data, 4g, auto orientation, bluetooth etc are turned off. do the HTC battery condition/charge trick. and turn off background sync.
my suggestion is to re root and look into undervolted kernels and many other battery saving tricks found using search!
hopefully it helps some.
I had the same problem OP.
Turns out my radios weren't update.
Head over to the developer section and download the newest radios and stuff.
I've seen significant improvement of my battery life by using Collin_ph Battery Tweak 1 that was offered by Myn's when I flashed his/her's rom. I had my BF take his Evo to work after he come home complaining that the charge would only last about an hour or two and behold, he got through the whole day without having to charge his battery. This is after listening to music at work for 8 hours also. I HIGHLY recommend this tweak for ROOTED PHONES as I and everyone else I've recommended loves their Evo now and have no complaints...I'm at work right now and I'm at 79% and when I usually get home the battery is either still green (full) or orange (med) charge. I'm not sure if this tweak can be used with other mods but I'm very happy with this tweak as it has made my phone perfect now~~
Could be a Rogue app running killing your battery or radios not updated like stated above.
I recently started having the same issue. Advice such as turning of data and the GPS aren't helpful since the device functioned fine with GPS and data on before. Also if the battery was draining at a slower rate on the current radio before, you shouldn't need to update it, should you?
Seems that either something is making the Evo use more juice than it was before or that the battery is not holding the same capacity it used to. For some reason Phone Idle and Cell Standby have been using quite a bit more juice than they used to.
I don't like some of the software mentioned to try and locate anything that could be using more juice since those programs seem to use quite a bit themselves. Either way, what could be doing it that would come up as Phone Idle or Cell Standby in the included battery monitor? Wouldn't anything else come up under Android System?
The battery draining that quickly is not normal even with background sync, GPS (idle), 4g, data, or anything else on. There is another issue which must be solved. To troubleshoot so far I've tried another battery (same thing happens) and now I'm trying with everything turned off. If I can isolate what was causing my sudden rapid battery drain, I'll update everyone. This just started a couple nights ago for me. I think I'm on the latest radio, but I'll check.
Last post sums up my problem perfectly. I have an extended battery that lasts half the time it has over the last 4 months. Started with the radio updates. running myk
Use the battery usage functions of 'spareparts' to determine what's consuming cpu or preventing the phone from sleeping.
Can't fix the problem until you've isolated what's at fault.
Turning off mobile data will indeed fix a problem of some app trying to access the network, but it won't solve the actual cause.
bcarter2000 said:
turn off your mobile data when not in use. This will save tremendous amounts of battery.
Click to expand...
Click to collapse
I think juice defender does this automatically when the screen is off.
In the case of my phone, and I believe the OP's, we don't have any rogue apps or things running in the background. I know this phone like the back of my hand. I have completely uninstalled unnecessary apps like facebook, twitter, all things like news and weather are on manual update, i don't keep 4g or gps on, and I use wifi at home. I turn off 3g in terrible reception areas. I'm not a new user who doesn't understand the basic ways to save a little battery. I'm pretty sure the OP isn't either by his post. I use my phone the same every day. My chinese extended battery would last me easily from morning to bedtime with 20 to 30 percent to spare. Now I can't get near that after the radio updates. Since it's been well known that something is weird with these current updates, I've downgraded to 1.77 to see if that helps. My phone was sleeping fine though, so I don't know how much it will help. Always some BS with this phone.
Log out of gtalk and latitude. Those two seem to kill battery.
Bielinsk said:
Log out of gtalk and latitude. Those two seem to kill battery.
Click to expand...
Click to collapse
I appreciate it. I really do. But that is exactly the things I'm saying are already off. GTalk is turned off immediately on my phone from the jump and latitude has never been opened. It's got to be radios. I guess I'm not really asking a question, I'm just telling the OP he isn't alone.
cruecu said:
I appreciate it. I really do. But that is exactly the things I'm saying are already off. GTalk is turned off immediately on my phone from the jump and latitude has never been opened. It's got to be radios. I guess I'm not really asking a question, I'm just telling the OP he isn't alone.
Click to expand...
Click to collapse
this is the thread with flashable .zips of alllll the radio updates ever out for the EVO.
http://forum.xda-developers.com/showthread.php?t=715485&highlight=radio
if you are having trouble after a radio update, just try some of these other radios and see if that helps
Your best bet would be to root your phone again and give one of the SBC kernels a shot. I'm running CM 6.1.2 along with Zendroid 1.1.0 BFS AVS SBC and I can easily get 16+ hours with HEAVY use. And when I say heavy use, I mean hundreds of sms, dozens of calls and lots of websurfing. You will love the SBC kernels. Give it a try.
PS. My name is HondaCop and I approve this message.
We can offer suggestions until we're blue in the face.
First off, the OP needs to provide specifics of what's installed on the device, including rom, kernel, radio, etc, not to mention the hardware version itself.
Assuming it's not the known pri /rom conflict, then determination needs to be made as to what's actually consuming cpu - see first sentence above.
Need to use a systematic approach to troubleshoot this, otherwise it's a waste of time.
hgelpke said:
My Evo battery is draining at a rate that is all together too fast. I took it off the charger about 3.5 hours ago and it has drained about 30-40%. I have not made a call nor used the net at all save for the receipt of 3-4 emails. I had a rooted phone but I reset the phone back to complete unrooted stock. I have not even so much as installed an app. What can I do about this?
Click to expand...
Click to collapse
That sounds like a very weak cellular signal is forcing the radio to keep searching for it, draining the battery very quickly.
One way to somewhat alleviate this problem is to force roaming, to connect to a provider with a better signal.
"Roam Control" app does this (Market).
gpz1100 said:
We can offer suggestions until we're blue in the face.
First off, the OP needs to provide specifics of what's installed on the device, including rom, kernel, radio, etc, not to mention the hardware version itself.
Assuming it's not the known pri /rom conflict, then determination needs to be made as to what's actually consuming cpu - see first sentence above.
Need to use a systematic approach to troubleshoot this, otherwise it's a waste of time.
Click to expand...
Click to collapse
Dude....This is the best post in this thread...
Sometimes I wonder how far android users went in school....is scientific method lost these days? By no means am I qualified to help here..so my flamesuit is on for the post but damn.."my ****z broke...halp" won't cut it in a developer forum...
"it works on my machine"....words to die by.
d3x502 said:
....is scientific method lost these days?
Click to expand...
Click to collapse
What's that??????
d3x502 said:
Dude....This is the best post in this thread...
Sometimes I wonder how far android users went in school....is scientific method lost these days? By no means am I qualified to help here..so my flamesuit is on for the post but damn.."my ****z broke...halp" won't cut it in a developer forum...
"it works on my machine"....words to die by.
Click to expand...
Click to collapse
Actually,
some android users looked at the posting date, saw that the op hasn't updated in over 24 hours, wanted to complain about it, decided against it, posted quickly the most useful idea they had.
All that while doing real science.
Related
I installed Spare Parts and saw that my phone was never sleeping, even though it was on standby all the time.
This was caused by the location by antenna feature.
Ever since i unchecked that feature i've had around 50-60 hours of uptime, with a few calls and a lot of texts.
hope this helps alot others
With the new firmware the problem of battery dissapears completely
There is a known issue with network location detection in android 1.6. I had the same issue with my galaxy and it was solved. Now that we have root, we can hopefully do the same.
Also, br aware that I have found spare parts to actually stop the phone from sleeping, as well as tapatalk. I suggest rebooting after using either program.
-------------------------------------
Sent via the XDA Tapatalk App
adrianoftyriel said:
There is a known issue with network location detection in android 1.6. I had the same issue with my galaxy and it was solved. Now that we have root, we can hopefully do the same.
Also, br aware that I have found spare parts to actually stop the phone from sleeping, as well as tapatalk. I suggest rebooting after using either program.
-------------------------------------
Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
Actually that issue is fixed in the latest update so it's already fixed without needing root.
Which firmware? I know I'm still experiencing it.
RBA020 solved the battery issues for me.
Where in spare parts does it show you if your phone has been sleeping?
you don't need spare parts. Just dial *#*#4636#*#* and click battery history and then the running bar.
Sent from my X10a using XDA App
Inebriatef said:
This was caused by the location by antenna feature.
Click to expand...
Click to collapse
I hope this means that under Location, you had Wireless Networks and Assisted GPS enabled.
One question tho... how did you isolate this feature as the one that was keeping the system awake?
I just found that my phone has been running most of the time, I see Running at 100% under Battery History. Then I select Partial Wake usage and see Android System has the largest share. But what part of Android System? how does one get to know?
I know from having a Samsung galaxy and being part of the androidforums community that was going nuts until Simone found a bug report with Google saying that network location was stopping devices from sleeping. We had root so a Dev applied a patch to services.odex and voila! Phones were napping again.
Sent from my X10a using XDA App
adrianoftyriel said:
I know from having a Samsung galaxy and being part of the androidforums community that was going nuts until Simone found a bug report with Google saying that network location was stopping devices from sleeping. We had root so a Dev applied a patch to services.odex and voila! Phones were napping again.
Sent from my X10a using XDA App
Click to expand...
Click to collapse
Hmm... time to give this a try... so is it just Wireless Network or also AGPS that causes this problem?
I hope I can still leave GPS turned on?
EDIT:
adrianoftyriel said:
Sent from my X10a using XDA App
Click to expand...
Click to collapse
Didn't know that there was an XDA App till I saw your sig. Looks like its worth a try since its free!!
Update after turning location off completely
Well first run with all location methods disabled (I can still enable GPS quickly via a widget when I need to use it)... the battery performance is up phenomenally!!
I charged fully before going to bed last night, then kept the phone unplugged... woke up and found the battery was at 97%. This has never happened to me.
Ok, one thing tho, I use Juice Defender with night time schedule, so my wifi and 3G were off during most of the night. Anyways, its been around 3 hours since I woke up, and I've been using the phone on and off to do some browsing.
The battery is now at 93%.
I do not use any other aid other than Juice Defender... no task killers, no startup editors. Will update on how the rest of the day progresses.
EDIT: my thanks to Inebriatef and adrianoftyriel for pointing this out.
j4mm3r said:
I hope this means that under Location, you had Wireless Networks and Assisted GPS enabled.
One question tho... how did you isolate this feature as the one that was keeping the system awake?
I just found that my phone has been running most of the time, I see Running at 100% under Battery History. Then I select Partial Wake usage and see Android System has the largest share. But what part of Android System? how does one get to know?
Click to expand...
Click to collapse
I too would like to hear a bit more. Could the OP please elaborate?
I'm running the latest FW and although my battery life increased exponentially, I find that it's not going to sleep anymore! I had close to 50 hours battery life and now I repeat everything to get just under 20 hours.
I don't use task killers and crap anymore, just before I put my phone away. If I don't, I have a trillion programs running with like 40mb of RAM free. Although I understand this is Linux based, these programs are RUNNING and not idle. All my **** is draining the battery again after a clean reinstall of everything. What a bummer.
bongd said:
I too would like to hear a bit more. Could the OP please elaborate?
I'm running the latest FW and although my battery life increased exponentially, I find that it's not going to sleep anymore! I had close to 50 hours battery life and now I repeat everything to get just under 20 hours.
I don't use task killers and crap anymore, just before I put my phone away. If I don't, I have a trillion programs running with like 40mb of RAM free. Although I understand this is Linux based, these programs are RUNNING and not idle. All my **** is draining the battery again after a clean reinstall of everything. What a bummer.
Click to expand...
Click to collapse
@bongd, by latest FW, do you mean the R2BA020? If yes, then you shouldn't be affected by the problem being reported here. I'm still on R1FB001, which apparently has this Android 1.6 bug related to location.
As in my case, simply by disabling location settings (even though this reports that network location is the culprit, I disabled them all), the phone is now able to suspend itself and basically consume very little battery in standby.
Personally, I dont see any issue with lot of applications running and having little RAM left because I trust the Android system to manage it efficiently. Furthermore, the RAM on these phones is not as fast as what you would see typically on desktop systems, so it actually helps having things around in memory rather than aggressively cleaning it out. Checkout this link to understand a bit more about Android task management features: http://android-developers.blogspot.com/2010/04/multitasking-android-way.html
I suggest you use Spare Parts to isolate your battery drain, there might be some app that is misbehaving and hogging systems resources. Also turning off very frequent updates/refresh intervals in some applications is the way forward.
I found through trial and error that fancy widgets keeps my phone from sleeping.sad cause I really want to use it.
Sent from my X10a using XDA App
j4mm3r said:
@bongd, by latest FW, do you mean the R2BA020? If yes, then you shouldn't be affected by the problem being reported here. I'm still on R1FB001, which apparently has this Android 1.6 bug related to location.
As in my case, simply by disabling location settings (even though this reports that network location is the culprit, I disabled them all), the phone is now able to suspend itself and basically consume very little battery in standby.
Personally, I dont see any issue with lot of applications running and having little RAM left because I trust the Android system to manage it efficiently. Furthermore, the RAM on these phones is not as fast as what you would see typically on desktop systems, so it actually helps having things around in memory rather than aggressively cleaning it out. Checkout this link to understand a bit more about Android task management features: http://android-developers.blogspot.com/2010/04/multitasking-android-way.html
I suggest you use Spare Parts to isolate your battery drain, there might be some app that is misbehaving and hogging systems resources. Also turning off very frequent updates/refresh intervals in some applications is the way forward.
Click to expand...
Click to collapse
Thanks, j4mm3r. I am using R2BA020. It looks like I have some diagnostic troubleshooting to do when I get home.
Sitting here at work charging my phone, it isn't loading craploads of programs anymore. And it seems to be sleeping okay. I'll play around when I have some free time.
Fixed my problem big time
Hey guys,
I just wanted to throw my two cents into the pot.
OK – so after experimenting with Task Killers, Task Managers, Spare Parts, Juice Defender, etc. I came to the conclusion that they (for the most part) did more bad than good. It was getting to the point that I was just starting to accept that “The X10 just has ****ty battery life” end of story.
I also read in a Google released post on the web, that there are a number of reasons that Task Killers, etc. are actually not required to end tasks. Android actually has a fairly intelligent and systematic approach to killing tasks that are not being used. I haven’t used any sort of proprietary battery saver, task ender, startup cleaner, etc. and I’ve been having the best phone performance since I got the headset.
The time now (Eastern Standard) is 3:30pm on Monday. The last time I charged my phone was Saturday evening at 6pm, and currently I am showing 24% battery remaining. Let those numbers do the talking!
My settings are:
Wi-Fi always off unless I am going to be actively using it (browsing)
Using Phone info, I change WCDMA Preferred to GSM Only (enables 2g instead of 3g without disabling data altogether)
GPS always off
Screen settings, brightness, etc. I believe have a much smaller effect than people tend to believe. The SINGLE BIGGEST factors for me, and noticing this huge increase in battery life are:
Settings -> About Phone -> Software Update -> UNCHECK Automatic Search (this constantly searches the market, etc. for app updates and what not)
Cycle power immediately after charging. Once my phone completes its charge, I turn off and then on again.
I hope that some people can enjoy moderately extended battery life as I have. I am SO ecstatic to be at HOUR 43 and still at 20%+
Worth mentioning also that I am on Rogers (Canada) and have not received any updates, so this extended battery life is not a result of a firmware update.
How I Fixed My Batter Life Problem
My Incredible would run dead in about 4 hrs doing nothing. I finally dug into several "task killer" programs and found that about 20 - 30 apps were invisibily running in the background constantly. As soon as I permanently killed them, my battery life went to normal. I can now get about 2 days of normal use on 1 charge. Even a day of pretty heavy use will last almost all day.
So for me, it was all the new apps I installed when I first got the phone that were running in the background. The free "task killer" program was not showing them. I finally found the app called "System Panel." It was the ONLY app that would show me all the "invisible" apps that were still running invisibly in the background and let me kill them. Once I killed them with System Panel, they stayed dead and the free "task killer" program could auto-kill them from them on.
Not sure why the free programs could not see the rogue apps, but my battery life is GREAT now.
Inebriatef said:
I installed Spare Parts and saw that my phone was never sleeping, even though it was on standby all the time.
This was caused by the location by antenna feature.
Ever since i unchecked that feature i've had around 50-60 hours of uptime, with a few calls and a lot of texts.
hope this helps alot others
Click to expand...
Click to collapse
What do you mean caused by the location of the antenna feature?
Where is this option to uncheck this feature.
Thanks dear.
Vatis
I'm running R2BA023 and I am struggling to get a full day from the phone at the moment. It normally lasts around 12 hours and then its flat.
However, I ran the Telenor R2BA020 update and I manage to get a full day with ease.
I have just done a clean install of R2BA023 Generic UK "root" edtion and going to see how I get on. What I did notice before is that the phone was not returning to a idle state.
We have yet another possible remedy for those of us experiencing wakelock/battery drain issues still. Read about it from someone on the bugtracker.
Try leaving your GPS set to on, rather than toggling it. I switched mine on this morning (yesterday, now) and now for the first time in over a month I have now had my Evo unplugged for 13 hours and still have 31% battery remaining after moderate usage today.
It seems that CM may be managing it better or something (someone will have to look into it if this proves successful for more people)
Give it a try and post your results here!
I have never turned off my GPS once since I had the phone in like 6 months. GPS is not the issue for me.
I've always found that about 2 weeks after flashing a new ROM, I start getting wake lock issues which I can never track down. They always resolved themselves after I flash a new ROM, but reappear about 2 weeks later again.
Rinse and Repeat.
The GPS-on fix makes it look like there's an issue with the network location. This would tie in to earlier reports. In this case, it would be best to turn off "Use wireless networks" from Settings > Locations and Security until this bug is fixed.
The two most common causes mentioned so far are network location issues and SMD_RPCCALL wakelock issues.
Click to expand...
Click to collapse
Taken from bugtracker
What PRI are you guys running? This is likely unrelated, but PRI 1.90 seems to cause wake lock (100% wake) for some.
Edit: BTW, for every post I read, reverting to 1.77 PRI solves the 100% wake issue.
Not sure, haven't flashed a sense ROM in awhile... I'll try to check when I get a chance
kevinbear said:
We have yet another possible remedy for those of us experiencing wakelock/battery drain issues still. Read about it from someone on the bugtracker.
Try leaving your GPS set to on, rather than toggling it. I switched mine on this morning (yesterday, now) and now for the first time in over a month I have now had my Evo unplugged for 13 hours and still have 31% battery remaining after moderate usage today.
It seems that CM may be managing it better or something (someone will have to look into it if this proves successful for more people)
Give it a try and post your results here!
Click to expand...
Click to collapse
You do realize that this makes no sense, don't you?
Not if something keeps trying to call on the GPS when it's off causing some sort of wakelock while it loops trying to get a GPS fix. Leaving it on allows CM6 to manage it or something. But it does seem to help.
nabbed said:
You do realize that this makes no sense, don't you?
Click to expand...
Click to collapse
You know there's a well-known bug with Sense ROMs and the HTC 4G widget that forces 4g into a scan loop when you try to toggle 4G off that absolutely _kills_ the battery in a few hours...
I've not tested his suggestion, but the community has found stranger things before.
Side note: before two days ago I _never_ ran wifi on ... but also never ran into a wakelock ... I've left my wifi on just over the weekend as I was playing with something completely unrelated ... maybe with your suggestion Ill just continue to leave it up and see if i run into this wake-lock issue.
I've never turned gps off, it's been on since I got the phone this summer. I think it's funny that one of the settings we see for gps says something about "may cause excessive use of batter" or whatever and fact is - gps on 100% of the time doesn't do ANYthing until an app needs it. It's not used at all. No gps icon, no nothing.
The 4g problem is a PITA but it doesn't drain the battery within a few hours. It draws a little ut unless someone had shown me and proven it to me.....I wouldn't have known. And even now that I do know and I know to reboot my phone after I use 4g, I haven't noticed a big gain in battery life. Leaving 4g ON after you leave a 4g area or no longer need it WILL drain your battery within a few hours. fact
Hi all,
The battery life of my 4month old SGS is becoming shorter every week! I can 'almost' last a work day (8 hours) with a fully charged battery and minimal use.
I had this problem also on the stock firmware, Darky's rom 8.x was a slight improvement (much faster tho!), Light-ning rom and Darky's rom 9.x.
Everyday I charge my battery untill it is full, when my alarm goes off it's already at 98% (it's still hooked up). When I'm in the train to school, my battery already dropped around 86% (being idle). I check some mobile websites, my e-mail and read some twitter messages.
Because I know services as Twitter (I'm using Tweetdeck) uses alot of resources and battery, so when I'm done looking I always shut down those programs. And I often do an 'end all' task in the 'System' app which I purchased from the market lately to monitor my battery.
During the day the only thing I do is check my mail and some websites, but not for long, mostly it would be around 5minutes or so. So WiFi is turned OFF, GPS is turned OFF, and only GMail synchronizes with default settings. So what's the deal? Is my battery slowly dieing because of oldness, or is there another problem?
Thanks in advance for helping me! You're doing a great job!
Sincerely yours,
S1GNZ
after flashing your custom roms of choice... did you ever do a battery calibration?
like let your phone drain till it dies on its own... turn it on againa nd let it die again to completely drain it to the point where u cant even turn it on.
Then plug your phone in to charge and let it charge to 100%. Keeping the phone plugged in turn on your phone into recovery. Then clear battery status.
Then reboot your phone into normal mode and let it continue charging till it says 100%. WHen you unplug your phone it SHOULD say 100% still.
This normally fix the problem but if you notice that your phone is dying quickly still then PM me.
One small advice,try logging out google talk,of-course if you are not on it much,it will give you at least 2-3 hrs more.
Also,there is already a thread active on this forum 'dont kill your phone
,give it a life' give that a read.
Mainly this battery drains are there because of apps doing sync. or polling.identify them and adjust settings.
Sent from my GT-I9000 using XDA App
cripez said:
after flashing your custom roms of choice... did you ever do a battery calibration?
like let your phone drain till it dies on its own... turn it on againa nd let it die again to completely drain it to the point where u cant even turn it on.
Then plug your phone in to charge and let it charge to 100%. Keeping the phone plugged in turn on your phone into recovery. Then clear battery status.
Then reboot your phone into normal mode and let it continue charging till it says 100%. WHen you unplug your phone it SHOULD say 100% still.
This normally fix the problem but if you notice that your phone is dying quickly still then PM me.
Click to expand...
Click to collapse
I've been browsing these forums lately, and I've also come across a thread which advice is just the opposite and that you should NOT do this, any advice if that's true? And is it also true that deleting the batterystats helps?
GreenSGS said:
One small advice,try logging out google talk,of-course if you are not on it much,it will give you at least 2-3 hrs more.
Also,there is already a thread active on this forum 'dont kill your phone
,give it a life' give that a read.
Mainly this battery drains are there because of apps doing sync. or polling.identify them and adjust settings.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Am I auto-logged in on Google talk? If so, how do I log myself out :$? So Google sync might drain it? (Mail, Agenda, Contacts?)
Thanks for the quick replies! I really appreciate it!
Sincerely yours,
S1GNZ
I am not 100% sure if you auto logged or not.I believe not but if not so , then open app,press menu/setting button on phone,select logout.also if you not intending to use data network,press power key till you see a menu turn off,data network,turn it on when you need it.These small things saves some power.
If you dont want to mess around with this little twiks then 'juice plotter' is the app for you.it will manage lots of things and defi. saves battery.
BTW based on your usage desc., I think I use it in similar way ...almost and yet phone makes ~2 days.
Sent from my GT-I9000 using XDA App
S1GNZ said:
I've been browsing these forums lately, and I've also come across a thread which advice is just the opposite and that you should NOT do this, any advice if that's true? And is it also true that deleting the batterystats helps?
S1GNZ
Click to expand...
Click to collapse
You of course wouldn't be doing this alot nor should you NEED to do this often. It's only something you do when you're experiencing what you currently are.
Personally I have no idea why anyone say u "Should NOT" do this.. it's not like you're altering anything hardware wise. It's mainly software and power usage aspects.
Like I said to each their own. Some people say custom roms are a "No-No" cuz it messes with the phone in more bads than good and some says stock roms are for noobs. You dont HAVE to try what I said, it's merely a suggestion of fix or methods that seems to solve the problems others have encountered.
Clearing the battery status pretty much resets it's counter to 100% and from there it will "calculate" the life of the battery from full to empty. It's a calibration thing.
Now on regards to usage, keep your data plan off and auto-sync off when you're not using it. Leave your wifi off and gps off as well.. pretty much keep anything you dont need off until you need it. Some samsung apps does a background run thing where it'll auto turn on and auto run in the background which drains ur battery quite badly. If you don't use goggle talk or samsung chat apps, there are many ways to remove them completely so it won't mess with your battery life
Simple you installed a rom with multiple posts on battery drain problem .
A rom that also tells you about battery drain problems /fix on its front page .
jje
GreenSGS said:
I am not 100% sure if you auto logged or not.I believe not but if not so , then open app,press menu/setting button on phone,select logout.also if you not intending to use data network,press power key till you see a menu turn off,data network,turn it on when you need it.These small things saves some power.
If you dont want to mess around with this little twiks then 'juice plotter' is the app for you.it will manage lots of things and defi. saves battery.
BTW based on your usage desc., I think I use it in similar way ...almost and yet phone makes ~2 days.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Okay! And you're right, it logs me on when I start the app. But I logged me out, just to be sure. I know about turning of the mobile data traffic, I'll see how much it saves. I think I came across juice plotter, but I'll look into it. Thanks!
cripez said:
You of course wouldn't be doing this alot nor should you NEED to do this often. It's only something you do when you're experiencing what you currently are.
Personally I have no idea why anyone say u "Should NOT" do this.. it's not like you're altering anything hardware wise. It's mainly software and power usage aspects.
Like I said to each their own. Some people say custom roms are a "No-No" cuz it messes with the phone in more bads than good and some says stock roms are for noobs. You dont HAVE to try what I said, it's merely a suggestion of fix or methods that seems to solve the problems others have encountered.
Clearing the battery status pretty much resets it's counter to 100% and from there it will "calculate" the life of the battery from full to empty. It's a calibration thing.
Now on regards to usage, keep your data plan off and auto-sync off when you're not using it. Leave your wifi off and gps off as well.. pretty much keep anything you dont need off until you need it. Some samsung apps does a background run thing where it'll auto turn on and auto run in the background which drains ur battery quite badly. If you don't use goggle talk or samsung chat apps, there are many ways to remove them completely so it won't mess with your battery life
Click to expand...
Click to collapse
Don't be offended by what I said! . I only wanted to make sure I'm doing the right thing, I appreciate your criticism though. I did what you said and fully drained my battery yesterday, kept it charging overnight, cleared the batterystats through recovery mode and at the moment it's charging till 100%. I will see if it helps!
And according to my usage, I have Wifi and GPS turned of as default. And because I reinstalled a new ROM inclusive data wipe I don't have much chat apps installed, maybe there are some default apps that don't show up in the 'System panel' app though?
JJEgan said:
Simple you installed a rom with multiple posts on battery drain problem .
A rom that also tells you about battery drain problems /fix on its front page .
jje
Click to expand...
Click to collapse
Care to explain a bit further?
FYI, I installed these ROMS:
past: Stock firmware 2.2.1
past: Darky's ROM v8.0 Gingerbread edition
past: Light-ning ROM 2.2 (if I'm correct, it's probably the latest)
current: Darky's ROM v9.2 Extreme edition (9.2 should've fixed the battery drain, am I right?)
Can't thank you enough for the replies!
Sincerely yours,
S1GNZ
im having similar problems too. calibrating doesnt really make a difference.
i installed an app called task identifier which is brilliant it tell me whats happening when the phone is asleep. the only trouble is i dont understand what these processes are so i cant disable them.... is there any sort of app out there that completely logs / signs you out of every app ??
i have 108 apps (not including system apps) and its hard trying to eliminate the battery drainers
Care to explain a bit further?
As it says post lots of with battery problems big big percentage running Darky rom .
current: Darky's ROM v9.2 Extreme edition (9.2 should've fixed the battery drain, am I right?) You would have to ask on dARKY Post .
Look at Battery drain thread LAST POST OR SO MAY BE OF INTEREST .
I am of the opinion that if a rom breaks something then installing more roms will often not fix the problem . I prefer a blank completely wiped phone in such cases with no trace of any rom left on it .
jje
@azzledazzle 108 apps? really ????
I don't have that much on my PC!
I think we should start narrowing down which apps drain most juice. I've been using Advanced Task Killer just to narrow down a couple.
example:
Sound Hound - starts on its own
Facebook had an issue with notifications push, when disabled, it still sent notifications to my phone. But I think they fixed it in the latest version.
We could start adding versions to know which app is a 'juice drainer'
Through this forum and others, I was able to restore my battery life on the epic back to the 20 odd hours. I thought of writing my process here for the benefit of those who might be struggling with similar issues:
ROM: Clean GB
Tools: Better Battery Stats and Battery usage graph (BetterBatteryStats from the market. I think there is another one that is free. I will try and find it. However, the graph referred to is the one that is built it. When you see battery usage, click on the the top part and it shows the graph of battery drain. )
Observation: There is unusual usage of phone when the screen is off. The phone wakes up roughly once every 2-3 minutes even when the screen is off. Battery life between 3 and 5 hours. Emails do not sync or slow to sync.
1. Removing DRM files: The three said files were frozen using Titanium Backup. However, when I looked under battery usage/Android, I would still see DRM listed. So in the end, I UNINSTALLED all three files and the DRM was no longer listed. Not sure how much of a culprit it is but worth mentioning if you are freezing the files assuming they are not coming up. Check under Battery:
2. Calendar: This was the main culprit: Calendar storage was damaged on the phone and so, the phone was constantly polling to sync my calendar, in turn, running the battery down and making the phone slow. Cleared Calendar Storage using Titanium and that fixed the problem of syncing.
Emails:
1. Hotmail : Activesync (now on 1 hour polling)
2. Corporate: IMAP (1 hour)
(Above two running on Enhanced Email client). Not sure if standart client will also work, will test that and post later)
3. Gmail: using gmail app
Worth mentioning, that I used Enhanced Email and turned on logging to really see what was going on, hence coming to the issue of Calendar taking forever to sync.
3. SNS: The symptom was that SNS would be constanting restarting when seen under Applications/ Running services. Freezing the 2 sns files took care of that. Lost facebook status messages etc for contacts but made the phone faster.
4. KERNEL and CWM : Initially, although the phone was rooted, CWM was somehow, not FULLY installed. And for some reason, the phone would go to Sprint Recovery Menu. Also, worth mentioning, kernel usage was high. Installed the Clean_kernel and the latest CWM till I was satisfied the install was good and clean. A good way to test is to watch kernel usage on better battery stats and CWM behaviour when you go to Recovery.
5. Moved all content of SD card to PC and reformatted it. However, my SD card was fine, so did not see a change in performance, however, others might benefit, especially if you have movie files that the system is having a problem parsing.
I will add more if I think I missed something but doing the above took my phone from a paltry 3 hours on standby to more than 20 hours with usage. Totally acceptable and happy.
Hope this helps others.
Thanks, there's some interesting information in your post!
I cannot find either of those battery tools on the market... I also run clean GB...
I took into account what you mentioned, and removed SNS completely, hell I went a step further and just uninstalled the FB app. I will use the mobile site, and that is fine and dandy for me, I don't really need or want the constant notifications anyways.
I recommend the app Juice Defender, get the ultimate version, either pirate or paid, it is well worth it. Manages your 3g and wifi better, turns them off when the aren't needed, turns them on when they are. Really handy, has at least doubled my standby time.
I also recommend getting CPU Master, and having both it and voltage control on boot. CPU master lets you have profiles based on events, like the screen being off, or the battery getting to hot, again setup properly this also has done a number on my standby time.
Since I just flashed this kernel I haven't run a battery test yet, I am using Legendary 2.1 and IAP 2.0.6. Will run a test tonight to see how long the battery lasts for standby, hopefully it will turn on in the morning, it hasn't in the past very often.
---------- Post added at 07:30 AM ---------- Previous post was at 07:26 AM ----------
Milkman00 said:
I cannot find either of those battery tools on the market... I also run clean GB...
Click to expand...
Click to collapse
I haven't used the graph, in order to find Betterbatterystats it has to be spelled just like that
Yes, BetterBatteryStats from the market. I think there is another one that is free. I will try and find it. However, the graph referred to is the one that is built it. When you see battery usage, click on the the top part and it shows the graph of battery drain.
The important part that I wanted to see was when the screen is off, is there any activity, meaning the phone is not truely speaking. At when the phone was at its worse, there was a activity roughly every 2 minutes. That was the main cause of the battery drain.
saramon said:
I took into account what you mentioned, and removed SNS completely, hell I went a step further and just uninstalled the FB app. I will use the mobile site, and that is fine and dandy for me, I don't really need or want the constant notifications anyways.
I recommend the app Juice Defender, get the ultimate version, either pirate or paid, it is well worth it. Manages your 3g and wifi better, turns them off when the aren't needed, turns them on when they are. Really handy, has at least doubled my standby time.
---------- Post added at 07:30 AM ---------- Previous post was at 07:26 AM ----------
[/COLOR]
I haven't used the graph, in order to find Betterbatterystats it has to be spelled just like that
Click to expand...
Click to collapse
I cant say much about those tools cause I havent really used them. However, in my case, the problem was a bad calendar sync and SNS, I can see Juicedefender would maybe improve the battery life as it wont let the phone connect, but wont necessarily correct the issue at hand. Just my two cents.
saramon said:
I took into account what you mentioned, and removed SNS completely, hell I went a step further and just uninstalled the FB app. I will use the mobile site, and that is fine and dandy for me, I don't really need or want the constant notifications anyways.
I haven't used the graph, in order to find Betterbatterystats it has to be spelled just like that
Click to expand...
Click to collapse
FYI: I have the facebook app installed and it works fine. The problem is in the SNS when you put in your facebook info and it lets you sync fb events etc.
Also, by removing, I am hoping you mean you froze or deleted those two SNS files. Just watch Applications/Running to see if you see SNS there. If not, you are golden.
4hours of battery =) blazerRom is the best out right now. Thought it usually would be at 2% with 3g on and not wifi allday
Sent from my SPH-D710 using xda premium
My phone stays "awake" constantly. How can I figure out why it is staying awake??? I think that is a big part of my battery problems.
Milkman00 said:
My phone stays "awake" constantly. How can I figure out why it is staying awake??? I think that is a big part of my battery problems.
Click to expand...
Click to collapse
Betterbatterystats has a listing of programs under partial wake lock. See which is using up the most time.
hindibuff said:
Worth mentioning, that I used Enhanced Email and turned on logging to really see what was going on, hence coming to the issue of Calendar taking forever to sync.
.
Click to expand...
Click to collapse
How do you turn on logging in enhanced email?
Sent from my SPH-D700 using xda premium
sethlo said:
How do you turn on logging in enhanced email?
Sent from my SPH-D700 using xda premium
Click to expand...
Click to collapse
This might help:
http://enhancedemail.net/viewtopic.php?f=36&t=4&sid=25404e9a1c5b7b2471d2e184a1fbb6e2
saramon said:
I recommend the app Juice Defender, get the ultimate version, either pirate or paid, it is well worth it. Manages your 3g and wifi better, turns them off when the aren't needed, turns them on when they are. Really handy, has at least doubled my standby time.
Click to expand...
Click to collapse
I also highly recommend this app, and have realized enormous power savings from it. My phone takes microscopic sips of electrons when in standby with JD.
However, I most emphatically DO NOT recommend that anyone be a thieving, pond-scum, crook with the ethics of a crack whore and obtain a pirated copy of this app, as saramon has recommended above. The author if this app has spent a lot of their time developing it, and should be compensated fairly. It is one of the best supported, most often update apps around. For the value it provides, there really isn't any legitimate argument justifying stealing it to avoid a few bucks.
Shame, saramon, shame.
I purchased JuiceDefender but ended up uninstalling it. Much easier just to toggle wifi and sync on-off manually, rather than tweaking it constantly. I found that the app causes more connection hassles and permission annoyances which offset any battery saving benefits it offers, and is yet another ram-draining backround process that slows my phone.
Never said that I did, but not everyone can afford it, just sayin'
hindibuff said:
3. SNS: The symptom was that SNS would be constanting restarting when seen under Applications/ Running services. Freezing the 2 sns files took care of that. Lost facebook status messages etc for contacts but made the phone faster.
4. KERNEL and CWM : Initially, although the phone was rooted, CWM was somehow, not FULLY installed. And for some reason, the phone would go to Sprint Recovery Menu. Also, worth mentioning, kernel usage was high. Installed the Clean_kernel and the latest CWM till I was satisfied the install was good and clean. A good way to test is to watch kernel usage on better battery stats and CWM behaviour when you go to Recovery.
Click to expand...
Click to collapse
I had 2 questions. First, what exactly is SNS? I see it restarting a lot as well, but I've been afraid it was something important so I've always left it alone.
And how would ClockworkMod affect battery life? Doesn't that only come into play when going into recovery mode?
Thanks
TheSkipperCDB said:
I had 2 questions. First, what exactly is SNS? I see it restarting a lot as well, but I've been afraid it was something important so I've always left it alone.
And how would ClockworkMod affect battery life? Doesn't that only come into play when going into recovery mode?
Thanks
Click to expand...
Click to collapse
If you have SNS restarting it's probably because you removed the stock "Feeds & Updates" widget that came with your phone. Either freeze SNS in Titanium Backup (rooted), put the F&U widget back on one of your screens (unrooted) or kill it after every reboot (unrooted and no F&U widget).
saramon said:
Never said that I did, but not everyone can afford it, just sayin'
Click to expand...
Click to collapse
He's not suggesting that you did. He is just saying that you shouldn't suggest it to others.
Piracy is for children that want to feel savvy because they know how to steal Photoshop. Thepiratebay.org, kat.ph, isohunt, and the various novas aren't original or cool, everyone knows about them. The difference is that some people have grown up and understand that people that do work deserve to be paid for it.
Besides it is what? $2-3? Anyone with the intention to buy a product could afford that.
I bought After Effects, Sony Vegas, and Photoshop Elements. Elements I got on sale for $50. The others were a couple versions old and I got them for $300 and $150 respectively. I am a poor college kid. However, I know I can get a part time job and pay for the things I need and that's what I did. I only needed to work for about a month to buy all my software and now I have a legal license to use it. So Sony and Adobe won't try to steal the rights to everything I make >.>
In short, stuff only seems expensive if you have no intentions of paying for it in the first place. My family lives well below the poverty line and I still can afford a pretty decent production set up. I'm sure anyone could conjure up $2. It's less than a round trip bus ride.
I know this was long enough, but I figure I should mention this isn't an attack on you or anyone else. I feel very strongly about the subject and I would say this regardless of who brings the subject up. I have a lot of friends that disagree with me and I have pirated software in the past, I just think that people deserve the money they worked for. Perhaps prices could even go down if everyone actually paid for their software.
I got some life back out of my battery with CM7. Then went back to ERA legendary. I did all the following:
Wiped / reformatted the sd card, odined and repartitioned, odined ec05, odined CWM5, flashed ei22, flashed the rom, then kernel I wanted to try, multiple setups.... no avail. (Monitoring every combo with battery status)
What I have done now is repackaged the rom, removed the "stock" launcher (swapped for zeam) and a couple apks I though were pointless to me, and replaced the kernel so there is all only one flash. I am really starting to think mix_n_match flashing was causing an issue for me. Also, CWM 5 odined and not using the app is not giving me all the aformentioned issues or running as a background process...
So far my battery life is much better with one flash, but one thing I notice in all cases is after a reboot, better battery stats shows "system" under process tab, always highest on the list. Once charged it goes away until a phone call, reboot, and even after forced sync.
SNYPE2K9 said:
He's not suggesting that you did. He is just saying that you shouldn't suggest it to others.
Piracy is for children that want to feel savvy because they know how to steal Photoshop. Thepiratebay.org, kat.ph, isohunt, and the various novas aren't original or cool, everyone knows about them. The difference is that some people have grown up and understand that people that do work deserve to be paid for it.
Besides it is what? $2-3? Anyone with the intention to buy a product could afford that.
Click to expand...
Click to collapse
my troll post for the day.
hi MI A1 owners.
for those brave enough to use the latest vanilla, official OTA rom, what change did you notice?
does the battery still suffer huge drain that appeared in 2018 roms?
it's a big "NOPE" for me to update, i'm still on official DEC rom because of this drain issue.
Battery life is good on 8.1 no issue for me getting 5-6 hours SOT on gaming.
Never had battery drain problems. Only "issue" is notification led not blinking.
Just noticed that led light is no longer blinking when notifications arrive. Light stays on only when screen is off. Also Bluetooth is constantly disconnecting.
Ambient display isn't working for me.
Led notifier is also not blinking anymore!
Led not blinking, proximity sensor doesn't work properly all the time, some scrolling lag. That's what I've got so far
dudes thanks for your answers.
i'm just more convinced to not doing the update.
maybe the drain i had was magisk-related. (?)
Nothing for me, even got ten hours of screen after some cycles. Led doesn't bother me and it's the only thing i noticed.
Yes, the LED is always on, which is annoying, but the bigger issue is there is no change in the battery drain. I charged to 100%, set the phone down and did not move it or use it overnight. 8 hours later almost 14% of battery was drained. I have tried everything I can think of to try, including turning off high accuracy location, not allowing any location things like safe area, etc. and still I get this drain even when the phone is not in use. Android kernel and system consumed 85% of that usage, and System UI, Play Store and Phone Services accounted for 7%! SO basically, basic Android paired with the A1 hardware seems to be the issue and I don't know that there is any fix for that.
At one point, I thought an upgrade to the A2 was going to be a no brainer, but with the issues with updates being broken and this battery drain issue that nobody seems to be able to pinpoint and resolve, I am thinking I may not buy ANY other Xiaomi. It may be time to try something else because the only way I can get two days of battery is to turn on airplane mode when the phone is not in use!
KB_Thailand said:
8 hours later almost 14% of battery was drained.
Click to expand...
Click to collapse
Dunno what to say man. Mine is below.
2-3% at most over night.
And now it would appear that there is an issue with airplane mode.
I put the phone into Airplane mode at 2300 last night with 90% battery and did not pay attention to it. This morning I turned to phone on to find there was only 69% battery left, and WiFi was working. (see screen shot) WTF???? I have started using airplane mode to keep the battery drain to a minimum when the phone is not in use, and now it would appear that this doesn't work either.
I am REALLY getting frustrated with Android and Xiaomi as it seems that every time they do an update, something else goes bump! I have gone from totally happy with the AI when I first got it to being ready to write off Xiaomi as a company I would consider for purchase.
IjazCI said:
Is your WiFi scanning is on. ( Under location / scanning)
Play services also cause these type of sudden battery losses.
Try downloading latest play services apk from apkmirror . Latest one is
"com.google.android.gms_12.8.74_(090408-204998136)-12874034_minAPI26(arm64-v8a,armeabi-v7a)(480dpi)_apkmirror.com.apk"
Uninstall your current one. Install this .
Power off your phone for a few seconds and reboot.
Click to expand...
Click to collapse
Thanks for the thoughts, but unless I totally misunderstand what airplane mode is, WiFi should not be active when airplane mode is invoked. You can see by the screen cap that airplane mode is on AND WiFi is active. This seems to be a one off as it has not happened again for the last two days. I turn airplane mode on to stop the overnight battery drain while the phone is doing nothing. I have location set to GPS Only. IIRC play services was just updated 3 days or so ago, so it should have the latest version. I will check it and see though. Again, thanks for the thoughts.
KB_Thailand said:
At one point, I thought an upgrade to the A2 was going to be a no brainer, but with the issues with updates being broken and this battery drain issue that nobody seems to be able to pinpoint and resolve, I am thinking I may not buy ANY other Xiaomi. It may be time to try something else because the only way I can get two days of battery is to turn on airplane mode when the phone is not in use!
Click to expand...
Click to collapse
I can't logically understand why you would think it is the hardware causing the issue. If it was hardware, what you are seeing would be happening to every owner of the phone and clearly that is not happening. By saying it is the hardware when you have other software loaded is akin to saying your car's air conditioning doesn't work properly when you have all the windows wound down.
There is something loaded on your phone that is causing the systemUI to be working when you think nothing should be happening. The first thing I see on the screenshot on your phone is that in the top left of the screen you have two non standard icons. That tells me that you have a skin or non standard software constantly running.
The way to solve any issue like this is to go back to basics. I would get the fresh rom and do a Miflash whilst keeping your data. Make sure you do a backup first.
If that does not work, back up your data and do a clean install and check the phone's battery life. Do not load any non google software / app at this stage.
Then each day add one app and test for 24 hours. You will find this issue and the offending app or apps and I would be willing to bet you a few Singhas it will be an app you downloaded not the hardware causing this.
ludditefornow said:
I can't logically understand why you would think it is the hardware causing the issue. If it was hardware, what you are seeing would be happening to every owner of the phone and clearly that is not happening. By saying it is the hardware when you have other software loaded is akin to saying your car's air conditioning doesn't work properly when you have all the windows wound down.
Click to expand...
Click to collapse
Actually, I think it is a combination of hardware/software, but that is just a WAG. Others have noted the exact same issue without running the same software. My bet would be on the RCS services stuff.
There is something loaded on your phone that is causing the systemUI to be working when you think nothing should be happening. The first thing I see on the screenshot on your phone is that in the top left of the screen you have two non standard icons. That tells me that you have a skin or non standard software constantly running.
Click to expand...
Click to collapse
Those icons are my Email client and GSAM Battery Monitor (presently 0.1% and 0.8%) and are the only two constantly running programs other than the stock apps and Sophos (0.3%). Neither use much battery compared to the Android stuff. Presently Kernel is 41.6%, RCS/Phone is 30.3%. SystemUI is 3.3%, Play Services is 2.0% and Phone Services is 1.8%
The way to solve any issue like this is to go back to basics. I would get the fresh rom and do a Miflash whilst keeping your data. Make sure you do a backup first.
If that does not work, back up your data and do a clean install and check the phone's battery life. Do not load any non google software / app at this stage.
Then each day add one app and test for 24 hours. You will find this issue and the offending app or apps and I would be willing to bet you a few Singhas it will be an app you downloaded not the hardware causing this.
Click to expand...
Click to collapse
Good advice. I will do this when I have a few days to play with it. In the interim, it's airplane mode every night. Thanks for the reply. If it turns out to be one of these apps, let me know where to send the Singhas.
Good luck with it. I hope you find the solution. It can be frustrating, but getting to the bottom of it will be worthwhile. I haven't used Sophos for a long time and even then it was for PC. I am not up with how Sophos AV is integrating into Android but that would be my first guess.
I have only had one issue with this phone after updating and it was that the OS was constantly asking for a password on unlock after using fingerprint not just on startup. A clean install solved it and I have been trouble free since with every update. With over 50 PCs in my office, I could only wish that I had so few issues with Windows updates as I do with Android.
For me, night light auto schedule not working properly.
I can't tether via wifi/bluetoth/usb
Made another post with the problem.
ludditefornow said:
Good luck with it. I hope you find the solution. It can be frustrating, but getting to the bottom of it will be worthwhile. I haven't used Sophos for a long time and even then it was for PC. I am not up with how Sophos AV is integrating into Android but that would be my first guess.
I have only had one issue with this phone after updating and it was that the OS was constantly asking for a password on unlock after using fingerprint not just on startup. A clean install solved it and I have been trouble free since with every update. With over 50 PCs in my office, I could only wish that I had so few issues with Windows updates as I do with Android.
Click to expand...
Click to collapse
Just for grins and giggles, I uninstalled my email client, GSAM, and Sophos, the only programs that run constantly other than system and Line. I then turned my phone off and back on, forced stopped Line, charged it to 100% and set it down with the screen off. It did not move of get used for 8 hours, yet it still used 12% of the battery. (see screenshots) This is better than the 20% with those apps installed, but still not close to what I would consider normal. When I first got the phone, it easily lasted 2-3 days between charges, with 6-7 hours SoT. Overnight would use MAYBE 2% of the battery. Now if I want it to last 2 days I need to turn on airplane mode overnight and then I can make it through a day.
So I guess the next step is to do as you recommended and load up the fresh rom when I have time to mess with it. At least I am now pretty sure that those apps aren't the culprits causing the biggest part of the battery drain. I hate to do it, but I am seriously thinking of a factory reset and seeing if that clears the issue. Would that put me back to Nougat?
IjazCI said:
I always disable carrier services apk. As rcs is not here in India.
Click to expand...
Click to collapse
How do you disable this apk? I seriously think this is the major culprit in the battery drain.
KB_Thailand said:
charged it to 100% and set it down with the screen off. It did not move of get used for 8 hours, yet it still used 12% of the battery. (see screenshots) This is better than the 20% with those apps installed,
Click to expand...
Click to collapse
So those apps were causing 40% of of the 20% of the battery drain. That is a good start. I am confident there are software issues with your phone. I see you have some GPS app on your home screen, if that was running askew, it might be constantly pinging. That is just a guess.
In things like this, work methodically through it. But of cause a hard reset would be the best way to go. I see no reason why you wouldn't stay on your current version after a hard reset.
If you want to go make to version 7 you would need to use the MiFlash program and a downloaded standard fastboot rom. You may need to do something else to the phone to go back to 7, but I would not think so.