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My battery on my dell streak drains very fast. For example i had it plugged in until 100% in the morning. Then about an 1 hour and a half laater without using it that much it draimed to 67 %. The battery usage says cell standby 49% and the screen was 17% and those were the highest. From my nexus one i kno that cell standhy should not be that high. What is causing this to be so high? And why is my battery draining so fast?
Sent from my Nexus One using XDA App
Are you on1.6 or 2.1? mind was the same on1.6. Loads better on2.1. But I have also noticed that if you are in an area where 3g is poor it spend slot of energy trying to connect. I turn of data quite allot and it doubles battery life. BeforeI was getting less than a day now I get a day easily...... UnlessI have a load of widgets
Sent from my Dell Streak using XDA App
Im using 1.6, then 3g then probably is the problem. Did u do anything to fix this problem?
Sent from my Nexus One using XDA App
I had similar problem and deleted my task manager, as amazingly it was using more battery than running applications
It also stopped 'fancy 'widget from updating, even when told to ignore it
'Appbrain' market was also another major problem, i also think that 'smooth calendar' doesn't help; but i'm still experimenting.
thanks for reply, im using advanced task killer, maybe i ll try taking it off to see if it affects the battery in anyway
If you look in the battery tab you should see where your biggest power hogs are.
Mine happened to be media.
I had removed all the media from my SD card, forced redection etc and it still drained the battery.
Eventually, I removed all ringtones and music from the SD card and did a hard reset, ran it for a full day monitoring the battery usage. Now I'm adding a bit of music back to see if it was a bad media file that caused the indexer to draw power.
For me the battery usage is almost 60% cell standby...then every other small thing piles in. Why is the cell standby so high. I would think that the display would be the highest
Sent from my Nexus One using XDA App
I'm having the same problem on my streak that is running 2.1 in the USA.
so is there a solution for this problem??
Arkalos13 said:
so is there a solution for this problem??
Click to expand...
Click to collapse
Delete ALL your apps
Weatherbug also drinks batteries, but it's so good this time the good outways the bad
I havent purchased my streak yet, does anyone know if 2.1/2.2 will have better battery consumption on this device?
you guys are scaring me..lol
Nobody can say for sure what the upgrade with have until it's released.
My experience is thus......
Widgets drain battery
T ask managers drain the battery, I now use watch dog
The biggest one by far.... The data connection drains battery. Especially if its a poor connection.
So first thing is to turn of 3g etc when not required. I get a day easily. If I add widgets I get a day just. This is with location gps and sync turned on all the time
Sent from my Dell Streak using XDA App
I was haviing normal smartphone battery life, about a day, then started having some trouble so I uninstalled some apps. But, I also let the battery die completely overnight then charged it full and am now on day three at 55%
Houndx said:
I was haviing normal smartphone battery life, about a day, then started having some trouble so I uninstalled some apps. But, I also let the battery die completely overnight then charged it full and am now on day three at 55%
Click to expand...
Click to collapse
Day 3 at 55%? Do you have a SIM card in your phone? Data enabled? 3 days and only 45% battery life drain is unreal. I have a fresh restore and my Streak barely makes it through the day still, no widgets installed, no network-activity causing apps running in the back, no task managers. The battery life on this phone sucks.
3G has been on the whole time as well as wireless networking and gps. Bluetooth was turned off until about noon today. For widgets I've got Weatherbug Elite, Jorte Calendar, 3G Watchdog, System Info and Latitude. The phone has had pretty light use for the last few days because I was doing some work around the house, but I did use it for the occassional game of solitaire and as my ebook reader at night as well as a few short calls.
Today, on the other hand, I've made several phone calls (more than a dozen, some longer some short), have had bluetooth on half the day, wireless enabled and a small amount of surfing. I went from 55% at 8AM to 19% at 9PM.
I think the battery meter was in need of proper calibration and that's why I did a full discharge and recharge. I'm as shocked by what's happened as anyone else.
Oh, I've also had Juice Defender installed both before and after the full discharge/recharge. Before I did that I wasn't even getting 12 hours out of the battery and that's why I tried it.
Dolphin browser HD, no sh%t, my battery went from approx 95% to 3% overnight. 9 hours
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My battery life has been pretty good for me, when I go to bed it's at 100%, come morning after 2 alarms it's usually at 97%. I usually have 3G & Bluetooth on. Then throught the day I don't use the phone much besides the odd text and odd e-mail, with a couple games of Robo Defence, and come 9 in the evening I'm usually around 40% which is pretty good considering that I get crap signal at work (very weak signal with the occasional signal drop) and I know that usually uses a lot of battery.
However, the other night, I went to bed with 100% on the phone and some time between then and 6 hours of sleep, the phone had died completely. Couldn't turn it back cos there was absolutely no charge in it...need to charge it a bit before turning it on. Quite worrying as I use the phone as an alarm during work days (luckly it was the weekend) and I don't acutally know what caused the massive drain
Thought I'd share my experiences here with you guys....
I've had my Streak about 4 weeks now, it's a US Beta version, on TMO US so no 3G, only EDGE. The only widget that uses data is Weather & Toggle. I have had sync and Facebook sync turned off, and only use GPS sparingly.
I tried everything - I started turning off the data connection (3G/EDGE in the top right menu) and basically uninstalled every program I thought could be using battery. Still, it would go from 100% at bedtime to around 60% in the morning. I then tried Airplane mode. Still was draining! I then installed Juice Defender, and it actually went from 100% to 0 - it died that night! D'OH! The whole time is was a 50/50 mix between "cell standby" and "phone idle". It doesn't show any programs using battery. I also tried Drain-o-meter, but it didn't show anything else either.
Well here's what finally fixed it for me -- turn back ON the EDGE/3G data connection and leave it on!!!
I'm guessing there are things running in the background (my guess is Weather Toggle widgets but the drain was still there even after I uninstalled it), possibly system processes, that require a data connection. In my case, that fixed it... now it goes down from 100% to about 92-95% overnight. Now I just leave the data connection on and it's all good!
I'm not saying this will work for everyone else, but hopefully maybe there's at least 1 other Streak user who has the same problem.
I was not happy with my streak's batteryperformance either (stock ROM), until a recent discovery.. It seems the Mail client (not gmail or touchdown) caused a partial wakelock if I had set it to 15min intervals (have 2 accounts) Draining approx 10% every hour.
After I set it to sync every hour, I dramatically increased the battery time.
Today when I checked it I had only used 3% in 5 hours (normally it would be minimum 30% in the same time)
I suggest you check your settings if you have the Mail client set up with accounts.
This changed my perspective on batteryperformance TOTALLY!
Hey,
I know there are a lot of threads about this topic, and I've read a lot of them on my quest to improve my batterylife. I've come from 4-5% usage in sleep down to 2%, but i still think its to much, and could use some assistance.
Like I said, I read a lot of threads discussing this matter but I would like for someone with a little more experience to take a look at the data and tell me what you think.
so here are some screenshots which I dont understand completely.
So what I dont understand is, cpuspy says, 84% of the time my phone was in deep sleep, but the batteryuseage shows something completly different. it shows the phone has been awake almost the whole time.
but if i'm reading BBS correctly there are no mayor wakelocks occurring.
i looked at my battery before i went to bed last night. it was at 59%. exactly 10 hours later when i woke up, it was at 40%. that means it lost almost 2% an hour when i didnt touch the phone once.
so i know stuff like BLN sucks juice, but i havent gotten a notification last night, and i set a schedule for BLN to turn off turing sleeping hours. and it only blinks for 10 minutes after a new notification has arrived and then stops.
i undervolted the CPU a bit (75mV on every speed).
i calibrated the battery (drained completely, removed for 2 minutes, charged to full while phone was off, at 100% removed it again for 2 minutes, put it back in and booted phone)
i wiped the battery stats
turned off a bunch of stuff, like autoupdate on market and other tips i found here on the forum.
wifi sleep policy is set to when screen turns off (btw. sometimes i doenst reconnect after the phone wakes from sleep, anyone got an idea how to fix that?
i'm running galnet miui with the siyahs 2.3 kernel and the KI4 modem.
now the question is, where does that leave me? what am i missing here?
For one day see what your battery life is like when you COMPLETELY disable BLN. Titanium freeze it or uninstall it. Second screenshot, what is that Imapfolders things? It has a high count (I see 1200), maybe try disabling that for a day just to make sure its not an app acting rogue. Another thing, have you disabled samsung bloatware (IM app, social hub, game hub etc).
Most of your wakelocks are radio related. When the phone gets a data request and wakes up to handle it.
I suspect its the K9 push email account that is doing it - anyway to change that?
adding on these questions that i also faced by the thread starter, how does this affect:
AlarmManager
Android System
40s(40s) Count 2336 0.1%
i believe this might be the contributor to the constant phone wakes?
Remoteconcern said:
Most of your wakelocks are radio related. When the phone gets a data request and wakes up to handle it.
I suspect its the K9 push email account that is doing it - anyway to change that?
Click to expand...
Click to collapse
would forwarding my mail to gmail and then getting it pushed from there be better?
from what I've seen on here gmail causes bigger wakelocks. most people recommend using K9. Maybe try a different rom? sounds like a big move however I do know that when running the hyperdroid rom for example most people get amazing battery life. Seen a few nice battery reports with checkrom also
I can confirm battery life on Check Rom coupled with Siyah 2.3 is excellent.
I might be stating the obvious to the OP but have you frozen most of the bloatware in Titanium Backup, ever since i done this battery life has improved substantially.
Also go into Wi-Fi settings > Wi-Fi sleep policy and ensure it is unticked,choose one of the other 2 options
In location and security untick Use GPS Satellites as this will use up lots of battery when it's ticked.
In the Privacy tab untick back up my data as this too will cause battery drainage.
Lots and lots more battery saving ideas, search and you'll find them
well i really like miui so i dont think i'll switch just yet. i'll leave that as a last resort.
i see my mistake here, i should rather be looking at the wakelock count rather than the time correct? K-9 sure as hell has a lot of wakelocks. (counting all wakelocks mentioning K-9, i get more than 8000)
the problem is, my email provider doesnt support push, only imap idle, that must be the reason why its wakeing the phone up so often. although i didnt get any mail last night...
from my understanding push services work a little different, since the app using it doesnt have to be connected the whole time. it gets woken up when the server sends a new message.
i deleted k-9 for now, and i'll see how that reflects on my battery life.
would maybe polling mail every hour be better than using imap idle?
work related i really need a way to get my mail frequently.
jonny68 said:
I can confirm battery life on Check Rom coupled with Siyah 2.3 is excellent.
I might be stating the obvious to the OP but have you frozen most of the bloatware in Titanium Backup, ever since i done this battery life has improved substantially.
Also go into Wi-Fi settings > Wi-Fi sleep policy and ensure it is unticked,choose one of the other 2 options or none at all.
In location and security untick Use GPS Satellites as this will use up lots of battery when it's ticked.
In the Privacy tab untick back up my data as this too will cause battery drainage.
Click to expand...
Click to collapse
have done all of that already, like i said, i've read a lot on the forums (cause i myself hate ppl asking the obvious they could've found out by using search for 2 minutes) but thanks for the tips.
only thing i'm not so sure about is the bloatware. since i dont think miui has a lot of that. but i'll look into that.
thanks for all the help so far.
i'll try to look at wakelock count more than on time.
one really anoying thing is BBS force closes A LOT on miui rom. at least i think its rom related, since i didnt have these problems with the other roms i tested since i got the phone.
Hey Phoboss,
please consider the rom is almost non relevant (except eye candy) to battery drain, the kernel makes the difference! I was on Siyah until three days ago with a consumption of 10% in 8 hours during normal usage of the phone, but then i found this Thread, give it a try (i use extreme edition w/o ans probs) forget about setcpu, if the kernel was compiled right, u dont need it!
Furthermore, why do you replicate so many folders in K9, from my POV the Inbox should be sufficient, but I dont know ur provider, push works fine with GMX, even on a freemail acount
If you want to try more, freeze the Calendar App and choose an alternative, from what I have heard, this helps to get rid of most of alarmmanager wakelogs (to be confirmed).
BTW, im on 75% Battery left right now after 20! hours on Battery with moderate usage (some WIFI, lots of XDA App , some calls and browsing, most on 3G which is always on)
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Good Luck!
Does your carrier support Fast Dormancy? Because you can turn that off as well to save a few % batterly life if it's not supported. There's usually a phone/model specific code you can type into the dial pad to switch it on/off (I can't remember off the top of my head what the code is but if you search around you'll find it for the SGS2).
Thanks for the tips, I'll look into that.
Here's a little update from last night. Was sleeping for pretty much exactly 8 hours and lost 8% battery in that time. So I came down from 2% an hour to 1%. Still think that's to much though.
The thing is, in the 40 minutes I'm awake now, I've been using tapatalk and surfed the web and I lost another 5% in that time.
This can't be normal can it?
Battery usage is still showing that the phone has been awake the whole night. As you can see on the screenshot below, between 0:00 and 8:00 I was asleep, screen and WiFi where off the whole time, but the phone is shown as awake. I've attached another bunch of BBS stats, this time sorted by count and not time.
(btw. how do you get BBS to show a graph like on your screenshot karpfenhai?)
And isnt Siyahs kernel considered one of the better ones around? Just curious.
Fast Dormancy is not supported by my operator, BUT I've read that it doesn't matter because my operator propagates that to the phones, and they disable it themselves.
Regarding K-9 checking so many folders, that's because I have them sorted by server side rules. I guess I could limit that to work mails.
Thanks again for the help so far.
I used Siyahs kernel for a while and I loved some of the features but Speedmod has it beat in terms of speed (duh! ) and battery life (I had read that multiple times which made me switch and I noticed a drop in battery consumption when switching to Speedmod).
You can check if FD is off as well but if your carrier doesn't support it may as well switch it off rather than relying on the phone to do it for you (I'd read a fair few posts from my fellow Aussies recommending switching off FD because AFAIK none of our carriers support it and it's a battery drain).
BTW - regarding Wifi sleep policy, I've seen people DEMAND that you completely turn off sleep policy as it's a battery drain (like you, i've been doing lots of battery reading and got mine down to very low consumption thankfully) - try comparing BBS with sleep policy on screen off vs sleep policy off and actually switching wifi off completely overnight.
Also, one thing I found useful was using titanium backup to completely freeze apps I wasn't using rather than just relying on the individual app settings. This also helps because it stops them booting when you start up your phone. Speaking of which, get Startup Manager if you haven't already - just like your home pc: turn off everything you don't need
EDIT: my uni mate wrote a pretty good general guide (for installing custom roms/etc as well as batter life tips) that might help you: http://forum.xda-developers.com/showthread.php?t=1351663
phoboss said:
Thanks for the tips, I'll look into that.
Here's a little update from last night. Was sleeping for pretty much exactly 8 hours and lost 8% battery in that time. So I came down from 2% an hour to 1%. Still think that's to much though.
The thing is, in the 40 minutes I'm awake now, I've been using tapatalk and surfed the web and I lost another 5% in that time.
This can't be normal can it?
Battery usage is still showing that the phone has been awake the whole night. As you can see on the screenshot below, between 0:00 and 8:00 I was asleep, screen and WiFi where off the whole time, but the phone is shown as awake. I've attached another bunch of BBS stats, this time sorted by count and not time.
(btw. how do you get BBS to show a graph like on your screenshot karpfenhai?)
And isnt Siyahs kernel considered one of the better ones around? Just curious.
Fast Dormancy is not supported by my operator, BUT I've read that it doesn't matter because my operator propagates that to the phones, and they disable it themselves.
Regarding K-9 checking so many folders, that's because I have them sorted by server side rules. I guess I could limit that to work mails.
Thanks again for the help so far.
Click to expand...
Click to collapse
1% an hour is very good pretty much what i get you cant really get much better than than unless you switch off data and sync and most other things, consider yourself lucky you only lost 1% an hour, if your surfing the web for about 40 mins non stop 5% sounds about right too.
Hello again, it seems you are on the right track, go ahead, its getting better
I had the same issue, 2ma consumption for 3-4 hours after unplugging, then it raised to 14-18ma for no reason, my suspicon was the accu wheather widget, but I didnt do any further investigation cuz I switched the kernel and the issue dissappeared, yay
Bbs can provide some more infos even on alarms, check it:
I still have 35% left and I can leave the house w/o getting panic ;-)
Try the kernel I mentioned earlier, you can only win!
Sent from my GT-I9100 using XDA App
BBS is force closing like crazy, cant really use it a lot.
the thing is, i still dont have an idea why my phone is always shown as awake. the one time i could access the graphs within BBS it showed the same behaviour. phone was/is awake the whole time.
As far as I know, this is related to miui, I've seen other users using this rom complaining about fc's..
Search for logcat and do a manual dump to gain the desired data.
Sent from my GT-I9100 using XDA App
I wonder if that constant awake bar is something to do with MIUI - certainly 8% in 8 hours drain isn't constantly awake, it would have drained more.
I route all my email to my Gmail and push that - doesn't seem to give me any battery trouble! I don't know if its a good option for you, or really whether or not its battery efficient, I just really like the Gmail interface.
so i've frozen some apps, wiped dalvik and cache partitions
but unfortunately that didnt really help.
here are some more screenshots (i resetted the data to get a more accurate reading) from the last half hour, during which, as you can see by the screen on time, i havent used the phone.
so do you think its odd that my phone got woken so often during this short time, or am i just to anal about it?
Simple can work well
DramatikBeats said:
from what I've seen on here gmail causes bigger wakelocks. most people recommend using K9. Maybe try a different rom? sounds like a big move however I do know that when running the hyperdroid rom for example most people get amazing battery life. Seen a few nice battery reports with checkrom also
Click to expand...
Click to collapse
Just to back this up im running Hyerdroid just checked been running 20hr 15min and on 83% but dont do any fancy stuff just charge the phone when it needs it
like your battery saving method , but it doesnt help you, if your phone dies during a work day. all the testing i did was basically lab tests, i never really used the phone much during this time. if i start getting calls and writing mails all day, the battery will die, thats why i need to find out whats going on.
i just want to know, if what i'm seeing on the first screenshot in my last post is normal or not. from my understanding its just a little odd that, in the approx. 30 minutes that are displayed, my phone was awake a lot, when the screen wasnt even on (i was under the shower and havent touched the phone ones).
After freezing some twenty applications with Titanium Backup, I finally got this phone to properly enter deep sleep. Here is a quick demo:
(I'm sorry for the images' quality, it's ScreenFilter in effect)
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I only have the HD2 to compare, which, either with WM6.5 or Android (CM7 flavour), reported, with its builtin battery chip, 4mA of drain to stay connected to the GSM carrier.
Surely enough, since silly Samsung doesn't like to use decent battery controller chips in their 800USD flagship phones, which any HTC device has, the estimates from Battery Monitor Widget, as, per se, estimates, so I cannot really say the numbers are exact, nor I have a definite idea of how they are calculated.
But still:
And, more in detail:
(yes, I know I could've copy/pasted the txt log in here, but surely a screenshot is nicer to look at )
I shamelessly forgot to take a shot of the Android stock battery usage screen, to which I actually look quite seldom; to my defense though, all these screenshots have been taken one after the other, so refer to the same moment; I had the phone charged, then unplugged it and reset the timer on CPUspy, WiFi stayed on just for a while, then disabled; no GPS, no BT, "GSM Only" selected in mobile networks.
I have found a weird behaviour: the drain is 2mA (according to BMW estimates) for quite a while right after the battery is charged. When you happen to actually "use" the phone for a while, the deep sleep drain instead, as estimated, skyrockets up to 30-40mA, to slowly go down again, but never quite low as the drain on my HD2. In the attached screenshots, it stabilized to 17mA, which is still 4 times the comparison of 4mA for the HTC.
A silly deduction: this must not depend on the kernel nor the ROM, since the deep sleep state has the CPU totally inactive, but is there a "radio firmware" that changes this behaviour?
Most importantly, what are your deep sleep mA readings with Battery Monitor Widget?
On a side note, I briefly connected the Note to my PC via USB to copy over the screencaps, and now after a short USB charge, BMW is reporting 2mA again...
How about sharing what apps you froze?
Without giving a full list (that would be dispersive and especially I would have to write it by hand which is annoying ) I suppose you can start with the obvious, all samsung apps, especially the updaters, and those that have a huge internet background activity (freezing IM+ in my case helped, but that sucks if you use chats a lot... I dont), then pass onto the tricky ones you would never suspect, like Network Location and Google Maps/Google Streets
If it doesn't solve your problem let me know, I will go and compile a list, but keep in mind that at first I just uninstalled system apps from Titanium, so the frozen list will be uncomplete of those uninstalled apps.
Quick update: for just this night, I tried leaving the phone on in airplane mode: 8mA drain just to be in connection-less standby!! That's ridiculous, it drains double with no connection active whatsoever, than what the HD2 needs to keep the GSM network connected. Re-enabled the GSM this morning, went to 17mA, so I suppose the 2mA that I see right after charging are, as suspected, just an artifact of BMW estimates.
This resulted in 4% over 7 hours (4% of a 2500mAh battery) in airplane mode, HD2 under WM drained 3-4% over 8 hours nights with GSM on (on a 1230mAh battery).
This phone does have a ****ty energy management.
ephestione said:
This resulted in 4% over 7 hours (4% of a 2500mAh battery) in airplane mode, HD2 under WM drained 3-4% over 8 hours nights with GSM on (on a 1230mAh battery).
Click to expand...
Click to collapse
I left the note (stock, not rooted) on for about 9 hours this night with 4% battery. This morning it had 1% left. To force it to shut down i opened wifi, read my mails and watched 2 songs on youtube.
All i did for the night was to set it to GSM only mode, close all active apps and clear the RAM from the build in task manager. I haven't experienced samsung apps keeping the phone awake yet.
Hi Bassarnis, and thank you for your report
Your experience may lead to believe it actually drained "just" 3% overnight, yet, with CM7 on my HD2 I had the strangest things happen especially when battery was (reportedly) almost drained.
Android (with its silly battery management) would tell me the phone was at 5%, and I just went on using it until 1%; even doing the nastiest stuff to drain that last 1% it took a notable while before the phone shutted down.
Turns out the battery wasn't really drained, but the phone told me it was, because of the useless, illogic, un-asked-for use of "battery statistics", combined with the fact that this OS thinks a battery is depleted when the dV is still 3600mV-ish (LiIon can stand to be discharged up to 3V with no damage).
In this case your leftover 1% could very well mean, in reality, a 6-7% ;D
I would love to know how much %age your phone drains overnight with GSM, starting from a good charge
ephestione said:
Hi Bassarnis, and thank you for your report
Your experience may lead to believe it actually drained "just" 3% overnight, yet, with CM7 on my HD2 I had the strangest things happen especially when battery was (reportedly) almost drained.
Android (with its silly battery management) would tell me the phone was at 5%, and I just went on using it until 1%; even doing the nastiest stuff to drain that last 1% it took a notable while before the phone shutted down.
Turns out the battery wasn't really drained, but the phone told me it was, because of the useless, illogic, un-asked-for use of "battery statistics", combined with the fact that this OS thinks a battery is depleted when the dV is still 3600mV-ish (LiIon can stand to be discharged up to 3V with no damage).
In this case your leftover 1% could very well mean, in reality, a 6-7% ;D
I would love to know how much %age your phone drains overnight with GSM, starting from a good charge
Click to expand...
Click to collapse
I charge my phone while its off. I know the effect you are describing. It could well mean that the battery wasn't properly charged the first few times, leading to the last 1% = 5%.
I don't guarantee that my results are accurate, since bought the Note 48 hours ago. When i bought it, i used it until the battery depleted and then charged it to full while it was off. Now its the 3rd time i charge it and i believe the percentages will be more accurate from now on.
Will try tonight and let you know tommorow
Thank you for your interest in this matter
ephestione said:
Thank you for your interest in this matter
Click to expand...
Click to collapse
Here are the results:
As soon as the indicator showed 5% battery left at around 23:00, closed all apps via the build in task manager and cleared the ram. (GPS/WI-FI/Auto-synch/Data = off, network set to GSM only)
Now at 7:00 there is 3% left after 8 hours of sleep time. That is 2% more than the last time. Currently the phone is on it's 4th charge circle using the method posted above (letting the phone shut down by itself, then charging it while off till 100%). I 'll probably do one more circle and then start charging the phone whenever.
after reading this thread was a bit worried so did a test last night,after a full charge from 1 am until 9am with only gsm on it consumed just 1%.
so no complains here on my wife's galaxy tab 10.1 she had the same draining problem,but after disabling the GPS it was solved.
Apparently there is something terribly wrong with either my phone OR my software... are you both on stock ROMs? And which version of firmware?
Thank you!
Ive been getting more than 1% drop over 8hours since my SGS2 days.. so this is nothing new to me.. only my SGS1 could drop 1% every 9.5hrs of idle.
ephestione said:
Apparently there is something terribly wrong with either my phone OR my software... are you both on stock ROMs? And which version of firmware?
Thank you!
Click to expand...
Click to collapse
Stock 2.3.6 not rooted here. I believe that battery monitor widget you use keeps your phone awake. Did you check your wake times?
You know, I've thought about it very much, regarding BMW and possible interferences with wakelocks, since it has to update stats every 10 minutes after all... but it's still once in 10 minutes so I don't see how it can weight for so much.
Also, I had battery monitor widget since the phone was still on KJ4 and unrooted, fresh out of the box, without a SIM inside, and with logging every 5 minutes instead of 10.
You can compare the graphs of the battery drain (one day is equivalent to two columns):
Before pimping up the phone, stock KJ4:
After, with ExtraLite rom and Abyss Kernel:
I obviously studied reports from betterbatterystats and nothing big seems to come out from there, apart from three causes for wakelocks that I cannot really pinpoint to anything specific: ActivityManager-Launch and AlarmManager, time-wise, and ActivityManager-Sleep, count-wise.
Out of curiosity, I disabled BWM, to see if anything changes.
But I reckon this is some kind of Schrodinger's cat situation, because I can't know the battery current drain of the phone when BWM is not active, if I don't use BWM
My last resort is to restore the nandroid of KJ4 freshly cf-rooted and see from there
Thank you all again for the interest, and
@EarlZ
1% down overnight is scary, positively speaking. I was content with 3-4% with the HD2 and WM6.5.
I was on the 1% mark overnight (less actually) only with my iPaq 214 But then again, that was not a phone, and its standby was a proper standby. And it had a battery almost like the note's.
Ok, I've been thinking about this for a while now so I'm going to make a test to decide if I really need a battery saver. I'm making this test for myself purely but I thought someone might wanted to see the results as well so here we go.
The gear:
Samsung Galaxy S2, non-rooted
2000 mah Samsung battery
The competitors
Phone on its own
JuiceDefender Ultimate
GreenPower Free
The settings
Prefer Wifi over data
Connect every 30 min to sync
No night settings (to be fair against the others)
Screen brightness: Auto
I know the battery savers are made to save battery when not using your phone so the screen will be locked the phone only used for a small amount of time between chargings.
The phone is unplugged at 100% and I will continue down to 30% before charging again. I will only be testing each one once, as of now at least.
We'll see how it goes over the next days so feel free to ask questions and such.
Many people I know with an S2 use battery saving apps but i really see no point in them, when we used to compare our stock phones running the same stock ROM there was minimal battery difference. Haptic feedback will be off or on? That makes a big difference.
You should put in a custom ROM to see how much better it is compared to stock.
i look forward to seeing the results of this test though
If I got it correctly haptic feedback is phone vibration on touch, right? That's off at least, never liked it. I'd like to put a custom ROM but I don't want to root the phone, yet.. Maybe in a few months or a year...
I will be updating this as we go along. At the moment we are at 96% with 3 hours of sleep time and only a few minutes of screen time.
Ermm, can I ask does task killer drain your battery? Sorry if I ask the wrong question.
darkmage17 said:
Ermm, can I ask does task killer drain your battery? Sorry if I ask the wrong question.
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Click to collapse
task killer will drain battery if the programs you closed restarts, use advance task killer and ignore those that do,you may need it for those apps that didnt close properly
im interested in your trial, juice defender service was failing to run on my s2, it ended up eating my battery restarting the service.
im looking to save power as i lose 15% over night with flight mode while i hear people lose 1,2%
Yes Android is a bit different than computer OS. To start an app drains more battery than just pushing the "back"-button and let it be in stand by so don't use task killers.
Yea I have had trouble some times with the battery saver draining quite a lot over the night but usually it has been because I had a mail as a widget with push-notification so the battery saver wouldn't disable internet but almost push all my other accounts as well. That was my solution at least. We'll see how this goes.
4h in 93% battery
15 min scrren time
A little update. You see where we are.
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And does anyone know what can have caused this? This is a picture from a few days ago. It has happened maybe 10 times over the last 2 months. Simply the phone gets hot and the only way to unlock the screen is to remove the battery, refit it and then start it. And then it shows this massive drain.
Okay we got 1 day 13 hours down to 30% with 30 min of screen time. Next up is the Juice Defender Ultimate with night settings off.
An update for you all. As you can see JuiceDefender has already passed the "vanilla" time.
I had an odd problem. Sometime during night, the battery suddelny decided to drain at much faster rate and it took it only 6 hours or so to drain from 75% to 15%. I checked with BetterBatteryStats but there seems to be no app that has kept it awake. Anyway, I can't continue with this test spimply because I don't have time for reruns.
What I can say in previous experience:
Vanilla
Great that as soon as a message comes in you get notified immediately.
Unfortunately that's because wifi or data is kept on all the time, draining battery.
JuiceDefender
Usually gives my phone 3-4 days of battery.
It does take some time (up to 15 sec or so) when you unlock the screen to connect and that can be annoying if you are in a hurry.
When I have night settings on to set phone in no vibration, no sound but also have different night setting time for weekends the phone vibrates once at midnight between weekdays and what JuiceDefender recognizes as weekend.
Sometimes it doesn't feel like the apps are updating even though settings are set to allow "dumb apps" to update as well as plenty of time to do so.
GreenPower
I have only had time to use it for a few days and it is only the free version. I will probably buy the premium soon.
It has a better UI than JuiceDefender though not so many settings. I'm not really sure if I need those other settings.
Best thing, it connects instantly to data when I unlock the phone so I can get on to the web or viber or such to see messages directly.
If anyone wants to continue this thread you may do so but I won't make more test as for the moment. Bottom line is that the data turning off when phone's locked really do help with battery life.
I have a problem that I noticed some people are experiencing. Overnight idle the phone drains like 25% with wifi off and on battery saver. Is there a known cause for this? My Honor 8 is brand new. Help!
Edit - When I go to sleep -
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After I wake up it's normal again (I turn WiFi on and use phone normally) -
I will try and leave WiFi on during the night today to see if it makes any difference.
Fyi, since I woke up and turned wifi on, the battery has only went down by 1%! Something is not right. How can it drain so much without using it and almost none when I actually use it.
Screenshot from today (from 1pm till 7pm, only lost 2%)
i.imgur.com/xLBcILO.png
Which hardware and firmware version are you using?
Do you have cellular data connected when WiFi is off?
Does the battery graph show constant system awake time during these periods of high drain?
PuffDaddy_d said:
Which hardware and firmware version are you using?
Do you have cellular data connected when WiFi is off?
Does the battery graph show constant system awake time during these periods of high drain?
Click to expand...
Click to collapse
Hi. I'm using FRD-L09 and EMUI 5, build FRD-L09C432B381.
No wifi, no mobile data turned on. All apps closed.
Yesterday I left it at ultra power save when it was at 12%, after I woke up (around 6 hours). it was off. Don't think that's normal either.
Sometimes I have the same problem. Overnight phone drops 25% of the battery.
What I found useful is to turn off Wifi+, Link+ and in GPS location (3 dots -> Search settings -> turn off Searching for Wifi and Bluetooth). In fact that will stops searching for Wifi, while Wifi is toogled off.
It might help you, I think this is Android 7 issue, since most people complains about heavy battery drain when not using the phone. Noone complained when using Android 6.
This isn't normal, but at the same time it is... I don't think any one person has figured out the real reason why, but many of us have had similar battery drain for seemingly no reason. I simply backed up my data and factory reset the phone and haven't had an issue since. Others haven't been so lucky.
Can you take a screen shot of your battery graph so we can see if your system is awake during the drain?
I have update B381 and u have this problem with battery drain for my is very bad battery life update B360 was good for battery life.
I found the high Idle battery usage some what related to the phone keep search for upgrade and the process "android OS" was consuming around 50% all the time.
After set these two setting, it fixed the battery drain and "android OS" only use around 20%. Now it remains 100% battery for 10 hours standby.
1) Setting->System update ->(three dots)->Update Settings->Wifi auto download (Disable)
2) Setting->Battery->(Setting icon on top right)->keep wifi on when sleeping->Never
I did as everyone suggested and turned off auto WiFi and bluetooth search and auto WiFi download of the system updates. If I turn off keep WiFi on during sleep, I don't get any notifications from messaging apps, so I won't do that. I've also only left Messenger, Viber and Whatsapp in the whitelist of programs that will be closed when screen is locked.
Here is the most recent screenshot of the battery usage.
Try factory reset and wipe cache. Screenshot tells us that your phone is awake when you are not using it.
Okay, I'll try later tonight and reply tomorrow if anything's changed.
p.s. Any good full backup apps?
Re7r0re7r0 said:
Okay, I'll try later tonight and reply tomorrow if anything's changed.
p.s. Any good full backup apps?
Click to expand...
Click to collapse
Just use the backup tool that was loaded on the phone. It works nearly perfectly to backup all your texts, call log, apps, settings, etc.
---------- Post added at 08:55 AM ---------- Previous post was at 08:52 AM ----------
Re7r0re7r0 said:
I did as everyone suggested and turned off auto WiFi and bluetooth search and auto WiFi download of the system updates. If I turn off keep WiFi on during sleep, I don't get any notifications from messaging apps, so I won't do that. I've also only left Messenger, Viber and Whatsapp in the whitelist of programs that will be closed when screen is locked.
Here is the most recent screenshot of the battery usage.
Click to expand...
Click to collapse
Looks like it tried to sleep when you went to bed last night, but something woke it up early in the morning and it never went back to sleep. Find out what that was and you may solve your problem.
If you have data, you still get notifications.
Re7r0re7r0 said:
I did as everyone suggested and turned off auto WiFi and bluetooth search and auto WiFi download of the system updates. If I turn off keep WiFi on during sleep, I don't get any notifications from messaging apps, so I won't do that. I've also only left Messenger, Viber and Whatsapp in the whitelist of programs that will be closed when screen is locked.
Here is the most recent screenshot of the battery usage.
Click to expand...
Click to collapse
As a test, I created a Magisk module that freezes all of Huawei's system power management apps and superfluous services. I just loaded it today, so it'll be a few days before I can provide feedback on if it improves battery life.
I backed it all up and am wiping it tonight but I was thinking. Perhaps it's not a good idea to restore the data yet? Maybe I should try a night with stock settings/apps to see if that makes a difference, then restore all and see if there's any difference.
Re7r0re7r0 said:
I backed it all up and am wiping it tonight but I was thinking. Perhaps it's not a good idea to restore the data yet? Maybe I should try a night with stock settings/apps to see if that makes a difference, then restore all and see if there's any difference.
Click to expand...
Click to collapse
Honestly, I wouldn't expect that experiment to provide you with any useful info. You will naturally see more battery drain once you have your apps and services running because more will be happening in the background. Reinstall everything and use your device normally to get the most accurate comparison to your previous battery life.
netvorCZEK said:
Try factory reset and wipe cache. Screenshot tells us that your phone is awake when you are not using it.
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Click to collapse
Factory reset I know how to do, but how to give the wipe cache?
IIRC, the cache should be wiped automatically when you Factory Reset.
I like to do it manually. Turn off the phone. Hold Vol + and power button.
I wonder how the battery drain overnight will be with the new custom Roms which are out.