I have read these forums for a long time but this is my first post. I recently updated the JI6 via the official T-Mobile over the air method. I have been on JI6 for two days now and have noticed that my battery life is terrible. Usually I am able to make it through a day of average use without any problems and I charge at night. Yesterday my phone did not make it through the day and it was a low use day at that. When I got home from work I started charging the phone, before bed I unplugged it and figured it would be no problem to just leave it in standby all night, my previous experience was that a night of standby only dropped my battery by a few percent. When I got up and looked at my phone before leaving for work it had already dropped to 21%, I looked at the battery usage statistics and found that Cell Standy and Phone idle had leapfrogged over display which is usually the biggest draw of power and were now using significantly more power than even the display. Also I do not live in an area of poor cell phone reception so that could not have contributed to this.
My phone was pretty much stock besides being rooted to run the WiFi tether. My wife also has the same phone and she said she is experiencing pretty much the same thing since the JI6 update.
Below is the list of the top 4 batter using processes were on my phone and their percentages.
Cell Standby 41%
Phone idle 30%
Display12%
Android System 9%
Is anyone else experiencing similar battery usage since the JI6? Is there a known problem with this JI6? Has T-Mobile or Samsung acknowledged this problem? Any suggestions for fixing the problem at least until Froyo comes out?
Perhaps others can post their experiences with battery performance post JI6 here as well so we can get a consensus.
The radio in JI6 is stronger than previous versions to help with reception. That being said, it drains battery more. However, the stats your provided seem to point to you having apps on your phone that are pulling internet information too often. My cell standy or phone idle is never higher than my display and I do use widgets and apps that update a lot.
There just seems to be a bug somewhere that causes random drain, I've seen what people are saying about and I pulled the battery, it stopped draining for me until I guess I trigger it again.
kangxi said:
The radio in JI6 is stronger than previous versions to help with reception. That being said, it drains battery more. However, the stats your provided seem to point to you having apps on your phone that are pulling internet information too often. My cell standy or phone idle is never higher than my display and I do use widgets and apps that update a lot.
Click to expand...
Click to collapse
I do have some apps that are pulling data down from time to time, but I have been careful about setting these apps to not update too frequently. Also last night I specifically went in and closed any unwanted running apps, I think the only apps I left running were Seesmic, K9 Mail, and Gmail.
This thread is precisely the reason for why:
a) I finally registered to xda-developers for support
b) I decided to root my Vibrant
I received the JI6 OTA update around 5 AM on Wednesday, thinking *oh sweet this must be 2.2* I didn't hesitate to install it...the first 24 hours after didn't seem to show much signage of battery drain, but by Thursday morning things seemed...off.
6:00 AM - 100% charge, fresh off the cord
Around 11-noon - 15%, low battery notification pops up
This was by far the quickest drain I've seen, and even though I've only had my Vibrant for a month...right out of the box I was getting spectacular batt. performance with light-moderate use + wifi + sync, lowest brightness*(auto off), somewhere around 24-30 hours.
My initial reaction was to reset to factory, only to discover here that it did absolutely nothing to remove the JI6 update.
Now, post-root I've been reading through similar threads about the OTA effects and finding all types of tricks to extend the batt. life. Today the battery hasn't been as bad (with nearly everything off...sync, intervals, gps, blah blah), lasting around 11 hours. Not sure if there's any fix in sight, though I'm not really anticipating it reading how the cell standby / baseband is cranking out more power and in effect more juice.
My battery is about the same as before, getting 24-30 hours out of normal use. I'm currently 14.5 hours unplugged sitting at 42%
Sent from my SGH-T959 using XDA App
Flashed JI6 via Odin, and my battery life has sucked since. Talking on the phone kills it especially fast. I talked for about 45 mins yesterday morning and the battery gave out after 7 hours. Today it at least lasted 12 hours, but that was with pretty much everything turned off. Anyone flashed back to JFD? It's not like JI6 brought anything to the table.
My battery drains while idle after the update. Yet my wife's phone battery is fine. Hers is stock and mine is rooted with mobile AP flashed. I even reconditioned the battery.
Tonight I decided to flash bionix 1.91 rom to see if that would fix the battery drain issue. So far it's looking good. I'll know better tomorrow after a full charge.
JI6 installed Media Hub, right?
Sprint Epic users found that when Media Hub was installed on that platform a couple of revs back, it loaded a DRM background service that is constantly running even if Media Hub is never used. It is now pretty standard practice among knowledgeable Epic users to stop the DRM service whenever the phone boots. Many rooted users go further and delete it.
Vibrant users might try the same methods to improve battery life.
My battery usage has been fine. I installed through mini kies though rather then the ota.
Sent from my SGS Vibrant.
It totally sucks for me. I have tested it throughly this past week. Ran JDF and left it idle over night, barely lose any battery life. Update to JI6 via kies mini and lost 30% over night while i'm sleeping. I also tested the various versions of JI6 posted on xda and all of them give me horrible battery life (losing 3-5% per hour doing nothing).
I'm flashing the JDF modem file on the JI6 from kies mini. Will report back...
Again I'm completely confused here. Running stock JI6, went to sleep last night at 24%, woke up this morning at 21%
Sent from my SGH-T959 using XDA App
boomerbubba said:
JI6 installed Media Hub, right?
Sprint Epic users found that when Media Hub was installed on that platform a couple of revs back, it loaded a DRM background service that is constantly running even if Media Hub is never used. It is now pretty standard practice among knowledgeable Epic users to stop the DRM service whenever the phone boots. Many rooted users go further and delete it.
Vibrant users might try the same methods to improve battery life.
Click to expand...
Click to collapse
I removed mediahub via titanium and a bunch of bloatware while I was at it yesterday morning, I can report that last night before dozing off (11:45 pm) battery was at 90%, this morning (8:30 am) its at 63%...37% loss in almost 9 hours. Only wifi on throughout the night:
Display: 41% (brightness 0)
Cell standby: 27%
Phone idle: 19%
Android system: 7%
Sent from my SGH-T959 using XDA App
That makes no sense, if you're on WiFi it wouldn't be the cause of this. Are you sure it's set to be on WiFi 100% of the time/when the screen is off?
That's ridiculous, something is awry
Sent from my SGH-T959 using XDA App
Just kidding stupid me, just checked wifi sleep policy...changed it to 'never' now. Yeaaa that might've helped lol.
Sent from my SGH-T959 using XDA App
Switching to bionix 1.91 stock kernel solved my idle battery drain issue. I was losing ~4% an hour and now with bionix it's not draining. Unplugged the phone this morning at 100% and an hour later it was still at 100%. Same as before the JI6 update. I'm happy now. Bionix is smooth as butter.
Yellow C6 said:
Switching to bionix 1.91 stock kernel solved my idle battery drain issue. I was losing ~4% an hour and now with bionix it's not draining. Unplugged the phone this morning at 100% and an hour later it was still at 100%. Same as before the JI6 update. I'm happy now. Bionix is smooth as butter.
Click to expand...
Click to collapse
I'm contemplating this option, how long have you been on bionix now? Any stats on batt performance afterward, hours?
Sent from my SGH-T959 using XDA App
After the update I got horrible lag and bad drain. I'm talking 4 hours on average usage.
Sent from my HTC HD2 2.2 Group using XDA app
Does anyone else see the irony or possible logic that Samsung gave us a stronger modem that uses more power and a new task manager to monitor what else is running draining power with the Ji6 update? Granted there are better task managers for root, but kinda clicks in my head.
Also after all my settings have been checked, apps, wifi sleep (used OCLF), widgets and internet, syncing frequency, wallpaper etc. I used Rom Manager to recalibrate my batteries. I thought that the battery data might have been wiped during the update and at first my phone behaved like it.
All good now. I'll never have the stand by of a flip phone, but it all seems reasonable. I use my phone a lot, a real lot. I go through 2-3 charges a day, mostly 2. I have extra batteries also. Stand buy time almost seems better, but I have not recorded data and I have made many changes.
Theres a good thread a dude put up in the Vibrant general section about his anal battery saving habits, he uncovered more ideas and things I didn't know. Hes admitedly extreme put its a good read. Also a couple of threads on how to recal the battery, some disagreement there so I did not chime in here with specs.
i was recently looking at battery stats in settings>>about phone>>battery usage
and i was noticing in all builds the screen is using about 60%-70% of the battery.
the thing is i was wondering if everyone else has the same problem??
is there a fix that i missed or something? (i am usually on top of everything related to android and hd2).
I've faced the same with several builds, and observed that my wife's desire had the same at 4-5%. I thought this might be a driver issue, and could account for at least partly the battery drains.
I had posted my comment in one of the battery threads, and a "senior" member came back with a snide remark that I must have been installing it wrong all these while. After Mr. Know it all's response I stopped responding to anything posted here really.
I think its a relative figure, that 70% or so, I think it keeps getting averaged so may not actually be so bad after a while. I am still curious about the driver though. I've stopped using setcpu now and that seems to have helped actually with the newer hastarin kernels and tytung builds.
Sent from my Nexus One using XDA App
Android System: 40%
Cell standby: 18%
Voice calls: 18%
Display: 14%
Phone idle: 10%
(Battery standby 3mA)
(Screen autobrightness)
Here is mine battery stats
I have been using hyperdroid 1.7 for a while now with UV and OCd CPU kernel; WinMo ROM is Energy 2.5 GTX based 3.14 and Radio 2.15.50.14...
3-6mA in stand-by - don't use my phone that much though as you can see by my battery stats ...
Has anyone having issues with battery runs out drasticlly. Charge it and then with in minutes its dead. Get a full charge turn it off and back on then its dead.
I had that problem with my epic after flashing a custom rom. battery needs to be calibrated if it was not flashed at 100%. you can download battery calibration app from the market place.
Ya calibrate will help the readings but don't expect amazing battery. I have the seido expanded battery and it still can't make a day of heavy use.
Sent from my SPH-D700 using XDA App
i installed the syndicate frozen rom 1.1 and now enjoying a battery that still has life after return home from work (12-14 hours unplugged....medium use....about 40% remaining when i get home)
I'm using syndicate 1.2 with genocide 2.0 undervolted extensively on conservative and with the 3300 mAh battery I don't get that
AJ4VS said:
i installed the syndicate frozen rom 1.1 and now enjoying a battery that still has life after return home from work (12-14 hours unplugged....medium use....about 40% remaining when i get home)
Click to expand...
Click to collapse
Sent from my SPH-D700 using XDA App
I had this issue on a few ROMs, specifically the Anonymous i3. I would charge all night and by the time I got to work (1.5 hours on the bus) I would have only 50% or less battery from listening either to Pandora or other music and with 4G off. It's infuriating. I have not calibrated my battery as of the moment, however I did go to the RandomRom and my battery life is phenomenal in comparison so I would recommend (and my recommendations carry no weight because I am nothing more than a casual user who only recently began rooting) looking at what you are running and checking battery drain on other ROMs.
Your specific issue is calibration. Its that simple, its misreading you battery status
Xiutehcuhtli said:
I had this issue on a few ROMs, specifically the Anonymous i3. I would charge all night and by the time I got to work (1.5 hours on the bus) I would have only 50% or less battery from listening either to Pandora or other music and with 4G off. It's infuriating. I have not calibrated my battery as of the moment, however I did go to the RandomRom and my battery life is phenomenal in comparison so I would recommend (and my recommendations carry no weight because I am nothing more than a casual user who only recently began rooting) looking at what you are running and checking battery drain on other ROMs.
Click to expand...
Click to collapse
Sent from my SPH-D700 using XDA App
I figured that was likely it, but never worried about it since I still got good usage without ever calibrating. The anonymous i3 is the only one that didn't have decent battery life for me. Random has been the best so far, gets me about 10 hours with basic use.
Sent from my SPH-D700 using XDA App
So yesterday my friend I and both updated to the latest instagram version 3.0.4 and have been suffering abnormal battery drain.
Battery drops 15% an hour with NO USAGE.
indeed
Sent from my GT-N7000 using Tapatalk 2
yes, its true.
instagram drain a lot of battery.
i dont know why.
you.don't.say....!1!
Dang, if this is true, this explains my horrible battery drain today (worse than usual). Hopefully they will send a new update out soon.
From the Moderator
This has been extensively discussed in numerous threads relating to new rom i.e. battery drain. Instagram engages your GPS and keeps pinging it incessantly..... ergo the battery drain.
The Fix is to disable the app and only turn on when you want to use, then use the task manager to close the app. That way it does not work in the background.....
Now you have an Answer..............
...........THREAD CLOSED...........
Hello,
I am using Rooted N7 3G version with "[Kernel][4.3] M-Kernel - a60 [WiFi/3G] by Metallice' kernel and stock rom. Earlier I used Franco Kernel.
Since past 1 month I have been facing severe battery drain issues even when Nexus is not in use. When the N7 is on stand by mode during night, it drains almost 30-40% of battery. The battery lasts for approx 2 hours with minimal usage on Wifi. (These problems are faced even on Airplane mode).
I think there is some problem with my 3G radio. Its not thing to use 3g on it. There is often disconnection or the network is lost on the tab. I think similar problem persisted when the nexus wasn't rooted.
Can you recommend some better Radio, Kernel and battery fixes for improving the stability.
Thanks.