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.
Related
Hi everyone,
I have had my Galaxy S for a month now, I have been very unhappy with my battery life, so I thought, I gotta to fix without compromising perfomance.
I found it!
My battery life during this 1 month period was utter crap, battery used drained from 100% in about 10-12 hours on average.
At the time I was running the latest FWs (I kept updating as the FWs came out) with Mimocans EXT4 fix.
I was with lowest brightness setting, running on 2G without any screen animations.
So heres the fix:
Install SetCPU 2.02, make sure to apply on boot, make the minimum speed 100mhz and the top 800mhz.
This ensures the phone doesn't ever go to 1ghz but that the performance is never compromised (even when playing games, videos, apps).
Because I have the Mimocans fix, everything is smooth and battery life goes down very slowly!
Heres the stats of my battery right now:
Battery Level 70%
21h 40m 25s secs since unplugged
Display 37%
Phone Idle 27%
Cell standby 21%
Voice calls 7%
Android System 4%
Internet 2%
Android OS 2%
You can give this guide a go, sorry if it doesn't work, just trying to help.
Regards,
Azazin!
azazin said:
Hi everyone,
I have had my Galaxy S for a month now, I have been very unhappy with my battery life, so I thought, I gotta to fix without compromising perfomance.
I found it!
My battery life during this 1 month period was utter crap, battery used drained from 100% in about 10-12 hours on average.
At the time I was running the latest FWs (I kept updating as the FWs came out) with Mimocans EXT4 fix.
I was with lowest brightness setting, running on 2G without any screen animations.
So heres the fix:
Install SetCPU 2.02, make sure to apply on boot, make the minimum speed 100mhz and the top 800mhz.
This ensures the phone doesn't ever go to 1ghz but that the performance is never compromised (even when playing games, videos, apps).
Because I have the Mimocans fix, everything is smooth and battery life goes down very slowly!
Heres the stats of my battery right now:
Battery Level 70%
21h 40m 25s secs since unplugged
Display 37%
Phone Idle 27%
Cell standby 21%
Voice calls 7%
Android System 4%
Internet 2%
Android OS 2%
You can give this guide a go, sorry if it doesn't work, just trying to help.
Regards,
Azazin!
Click to expand...
Click to collapse
Please update with display time, phone idle time, standby time and voice call time. Without it these are a bit useless, these don't seem far from my stats when I use the display for +/- 1 hour.
alovell83 said:
Please update with display time, phone idle time, standby time and voice call time. Without it these are a bit useless, these don't seem far from my stats when I use the display for +/- 1 hour.
Click to expand...
Click to collapse
I have the percentages up in the OP.
This guide isn't just for turning crap battery life to good, it's also for people to extend their battery life if they already have a decent one.
Following the underclock to 800mhz my phone can last this long, compared to before when it used to last 10-12 hours with same usage!
azazin said:
I have the percentages up in the OP.
This guide isn't just for turning crap battery life to good, it's also for people to extend their battery life if they already have a decent one.
Following the underclock to 800mhz my phone can last this long, compared to before when it used to last 10-12 hours with same usage!
Click to expand...
Click to collapse
The percentages stand out, thanks, I saw them. Again, they are a bit meaningless without the time used. If you don't use your phone for 24 hours you should lose maybe 5% with sync off.
So, please, click on "display" and report the time that the display has been on, repeat for the other usage categories, other people will ask for this same information. I don't know if you didn't know how to do that or if you are witholding the information, hopefully it's just the former. I understand that, perhaps, you are doubling your battery life, but depending on the way we use our phones, relative to the way you use your phone we can see better or worse results. Doing this will allow us to know how much you use your phone and for what purpose, so we can make personal judgments about its merits to our usage.
TIA
This may fix the issue but it's merely a patch to cover up the wound. From my experiments I've found that in most cases the problems are related to the phone never entering sleep-mode. If you have bad battery life, please do the following:
0. Make sure you phone has been running on battery power for a while, usually a day with only 20% battery left is a good place.
1. Type *#*#4636#*#*
2. Go to Battery History
3. Other usage and "Since last unplugged"
4. Check the "Running" bar. Generally, if this is over 60% something is wrong.
5. Go to partial wake
6. Check if there's some application (e.g. Facebook) that has a high partial wake percentage. This is bad. System should be on top on most systems.
So, do you have the signs of something being wrong? Fear not! Usually this is due to a program or service misbehaving. I had bismal battery life (about 15 hours, just check the other thread for several of my posts), and then I uninstalled "Weather from Yr". I also let my phone discharge completely, then charge TURNED OFF over night. I then disabled auto brightness and "power saving" in the display. Yes, I disabled the power saving feature, and my battery life went sky high. Now I have about 2 days of moderate use (1h 30 min on) and about 1 day with heavy use. Letting any application run while the screen is off using partial wake KILLS my battery.
Unfortunatley, I didn't follow proper scientific approach when conducting my experiments, so I can't say which of the three things (uninstall weather from yr, complete discharge/charge cycle or turning off power saving) that did it for me, but it's worth a shot if you haven't rooted your phone. Post back with results.
alovell83 said:
The percentages stand out, thanks, I saw them. Again, they are a bit meaningless without the time used. If you don't use your phone for 24 hours you should lose maybe 5% with sync off.
So, please, click on "display" and report the time that the display has been on, repeat for the other usage categories, other people will ask for this same information. I don't know if you didn't know how to do that or if you are witholding the information, hopefully it's just the former. I understand that, perhaps, you are doubling your battery life, but depending on the way we use our phones, relative to the way you use your phone we can see better or worse results. Doing this will allow us to know how much you use your phone and for what purpose, so we can make personal judgments about its merits to our usage.
TIA
Click to expand...
Click to collapse
Hi,
Oh okay lol, no problem.
Display: 1h 22m 8s.
Phone idle: 20h 51m 22s
Cell standby: 12h 12m 52s
It doesn't look like I have used it much but during the time the display has been on, I have either been:
Playing games,
Texting,
Twitter,
Or Internet.
It doesn't look like much, but I recommend you try this and post results before and after
dagingaa said:
This may fix the issue but it's merely a patch to cover up the wound. From my experiments I've found that in most cases the problems are related to the phone never entering sleep-mode. If you have bad battery life, please do the following:
0. Make sure you phone has been running on battery power for a while, usually a day with only 20% battery left is a good place.
1. Type *#*#4636#*#*
2. Go to Battery History
3. Other usage and "Since last unplugged"
4. Check the "Running" bar. Generally, if this is over 60% something is wrong.
5. Go to partial wake
6. Check if there's some application (e.g. Facebook) that has a high partial wake percentage. This is bad. System should be on top on most systems.
So, do you have the signs of something being wrong? Fear not! Usually this is due to a program or service misbehaving. I had bismal battery life (about 15 hours, just check the other thread for several of my posts), and then I uninstalled "Weather from Yr". I also let my phone discharge completely, then charge TURNED OFF over night. I then disabled auto brightness and "power saving" in the display. Yes, I disabled the power saving feature, and my battery life went sky high. Now I have about 2 days of moderate use (1h 30 min on) and about 1 day with heavy use. Letting any application run while the screen is off using partial wake KILLS my battery.
Unfortunatley, I didn't follow proper scientific approach when conducting my experiments, so I can't say which of the three things (uninstall weather from yr, complete discharge/charge cycle or turning off power saving) that did it for me, but it's worth a shot if you haven't rooted your phone. Post back with results.
Click to expand...
Click to collapse
2 things:
1) the phone number thing is pretty cool, in the past I've used "Spare Parts" for identical and a bit more information. I encourage people to use one or the other.
2) You can still fix the unscientific nature of your experiment by a factor of 1/3. You can turn power saving back on, and I'll try it. Also, I'll assume that 1 charge wouldn't make a world of difference, so I think that could've added a few minutes to your phone life (more than charging with the phone on) but maybe someone with actual technical knowledge can chime in.
As for any program running in the background, I had a similar situation where I was going from losing about 30% in a day, similar to the OP, while using the phone, and hence the display, for about an hour at work. I also, always preferred to leave the phone off the charger overnight, so I'd have been unplugged for 16+ hours. One day I allowed 3 things to run to check both battery and 3G usage (I have 500mb per month until I decide to change my plan, probably waiting for the new deal thats been announced for unlimited data for an extra 10 bucks sometime this month). So, I ran:
Sync
3G data monitor (To test if I would go over what I'd use too much data from my allotment, refresh every 30 mins IIRC)
ATK (to kill tasks, hoping they'd use less of my precious bandwidth)
This 2 tasks plus sync just CRUSHED my battery, by the first time I turned on the screen I saw more than 50% drain from my battery, probably around lunchtime (probably 3.5 hours from the start of work). I turned off all 3 and, like you, I haven't conducted a scientific experiment since.
I tried something similar with overclock widget, but I had the impression that underclocking made the SGS really unstable. It freezed completely like 3-4 times a day. After uninstalling overclockwidget the device didn't crash anymore.
So how are the longterm effects (say, 1 week) of setcpu?
If anything I'd OC my phone, not the other way around.
XQC said:
I tried something similar with overclock widget, but I had the impression that underclocking made the SGS really unstable. It freezed completely like 3-4 times a day. After uninstalling overclockwidget the device didn't crash anymore.
So how are the longterm effects (say, 1 week) of setcpu?
Click to expand...
Click to collapse
The software probably isn't optimized for your usage scenario, I don't think an underclock, if done right, should be that bad, OC on the other hand...
ShezUK said:
If anything I'd OC my phone, not the other way around.
Click to expand...
Click to collapse
I'm in the same boat, screen uses 80%+ of battery when the screen is on, as long as I'm not wasting battery when the screen is off and processes aren't running I have excess battery life, not to mention a spare battery, which I'd like to get more use out of if I could better my experience.
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crap battery life
---------- Post added at 04:24 PM ---------- Previous post was at 04:22 PM ----------
crap battery life
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!
This thread is to discus extremely poor battery life on the Nexus S. When we say extremely poor, we mean averaging <24 hours per charge at idle.
After much research I think it's safe to say that some of us are experiencing extremely poor or contrarily, extremely good battery life and no one seems to have an explanation. I'm hoping this thread will find the answer.
The issue:
Many NS users are experiencing extremely poor battery life regardless of:
Rom installed
Apps installed
Installation method
Battery used
Charging method/battery training
Phone usage
Power configuration/tweaks
When we say "extremely poor" we mean <24 hours at idle, but many users are getting less than 8h/C at idle.
I personally have tested this against several ROMS both GB and ICS. We all see slightly better battery performance with GB ROMS, but never greater than 24h/charge.
My ROM history:
Tested the following ROMS for 4 days each, following the same installation procedure each time.
CM7 (nightly/stable) - ~15h/[email protected]
CM9 - ~13h/[email protected]
CyberGR .v4.5 - ~11h/[email protected]
CyberGR .v5.0 - ~11h/[email protected]
Installation method:
Wipe battery stats
Wipe data/factory reset and wipe cache partition
Flash Dalvik-wiper.zip and wipe Dalvik Cache
Wipe data/factory reset and wipe cache partition again
Format /system/data/cache/boot/sdcard
Flash ROM
Flash Gapps if applicable (CyberGR comes with Gapps installed)
I was running an AUCKF1 Radio for all tests. I did try a few other radio's but did not see any noticeable increase in battery life *edit-flashed XXXKB3 and may have increased my idle time by 6x? still testing*
I've also never personally seen an NS get >24h/C, and I've deployed >40 of them to customers. I've only ever heard of >24h/C here on the forums where it seems quite common.
I've seen reports of users flashing the OTA automatically or manually, and some experience <8h/[email protected] while others see >3d/[email protected] I've also tested the OTA and never saw better than 13h/[email protected]
So, we're trying to find the common denominator between those with good battery performance vs. those with poor performance.
Suspects:
Android OS is almost always reported to be active/awake for at least 50% of the time, even at idle on a brand new clean install. It is always the highest consumer of battery, always keeps the CPU awake.
I propose the following test:
Regardless of your setup, if you are experiencing >2d/[email protected] or with use, please post the following:
Phone model (ie: i9020a, i9020t...)
ROM
Radio version
Installation method
Screenshot of your battery monitor from a full charge over a minimum of 10 hours.
Screenshot of your battery use by application/service (we notice that Android OS seems to be the culprit in most cases of poor performance)
For those getting <1d/[email protected], please do the following and then post the same as above:
Note: This should be done overnight.
Follow the above flash instructions and flash whatever ROM you please.
Reboot to recovery and wipe your battery stats.
Power off your handset and give it a full charge while powered off.
On first reboot, sign into a single Google account but do not restore your apps/backups and disable Google sync.
Do not install any additional applications.
Enable wifi/bt/gps/data/sync and associate to a wireless network
Do not modify any power settings.
Leave your handset to idle overnight for at least 8 hours without touching anything.
In the morning, take a screenshot of your battery use as well as battery use by application/service.
Post Phone model, ROM, Radio version, Carrier, and Screenshots.
I recognize that there is some argument about how fast your battery will re-train itself after wiping battery stats. In my experience the training seems to be optimal after 1 full charge to full discharge cycle, but ultimately I've never seen further training result in >24h/C. Someone please let me know if there's a more accurate way to test this? Maybe we shouldn't be wiping battery stats at all?
I'll get us started.
Sorry, didn't get screenshots after 8 hours because my battery wouldn't last that long.
Phone model: Samsung i9020a
ROM: CyberGR .v5
Radio: AUCKF1
Carrier: Rogers
Wifi associated, BT on, Data on, Sync on, 3G connected, added one Google account but did not restore settings and disabled account sync.
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Results fluctuate between ~8h/[email protected] and ~14h/[email protected]
With light to moderate use, I get 6-10h/C
Hey Ben i just did what you did in the other thread. full charge everything on kill all unneeded services.
I'll admit that i forgot to kill extra services and it plummeted my battery to 92% in about 45min. I had an "oh ****" moment and went and killed the random apps.
Im at 2 hours extra now and lost 3% only, everything still on.
So with that info i'll mention this for me would be considered heavy usage. I'll never have everything on constantly. When I was posting up my results of light usage and getting 3 days - note that i had everything firewalled while on 3G except for my emails and messaging and took a few calls only. everything else was off.
I'm gonna guess that with it all on and actually using the phone i'll hit at most 10 hours, probably not even that.
So that basically puts us about even. I'm curious if you do my light tests...will you be seeing 3 days also ? If yes then we can rule out models basically.
Flashed XXXKB3, factory reset (according to OP instructions), flashed CyberGR .v5 again, signed into one Google account, disabled Google sync+backup, enabled and connected to wifi, bt/gps/everything on, then left my phone overnight. Results.
Looks ****in' Gooood. 1.2%/[email protected] draw.
But then, opened my screen once, played some tunes through BT to my truck, drove around for 13 minutes, went back in the house and left the phone idling again and look at the drop! It's continued to draw like this all day now, just idling. I've done NOTHING but play 13 minutes of music and then back to idle.
What's DOES IT MEAN??!!
So I rebooted my phone and let it idle again without touching anything, and still seeing the wicked battery draw. I dunno wtf to think here, and I can't get the draw back down to 1%/[email protected]
*edit* For the sake of 100% transparency, while the phone was idling at 1%/h overnight, I was far enough away from the wifi AP i'd associtated to, that it MAY have lost signal and given up, so perhaps the wifi hardware finally went to sleep. Does anyone know if wpa_supplicant (or whatever controls wifi in Android) runs is represented by AndroidOS?
Sent from my Nexus S using XDA App
Oh. Dur...
I think that may be it. Wifi was probably dis-associated overnight. You can see at the very beginning of the battery recording, there's a sharp dip in charge for about 15 minutes, which corresponds directly to Wifi association, then the draw goes nearly flat (1%/h) for 10.5 hours and the Wifi is not associated.
Testing now... Leaving Wifi on, but dis-associated. See if that nice flat line comes back.
Phone model: Samsung i9020a
ROM: CyberGR .v5
Radio: UCKE1
Carrier: Rogers
This is a normal night of going out, connecting with friends, a bit of music before. A weekend for when it is most important, these are the results. I forgot to photo the android os but it said it was awake, cpu for 4 hrs.
Regarding the Android OS being highest battery consumer, it might be false alarm:
http://forum.xda-developers.com/showthread.php?t=1456265
Although still, that hasn't explained the high drain (<10h/day) you're experiencing.
In your first set of screencaps (the 2h30m one) it seems obvious that the culprit is Mediaserver and Google+? One of the most annoying things about ICS that I found is that after flashing ROMs or kernels, Google-Photos have a tendency to enable sync behind our backs. Someone in my local forum discovered when he logged in G+ in his PC that the pictures in his Nexus S had suddenly shown up in the G+ account even though he never uploaded them there. After he disabled that sync, his battery life improved. As a result, I've grown OCD about checking my sync settings every once in a while. The Google-Photos option doesn't always show right away when we set up a new Google account.
AOKP Milestone 2 rom with Steve Garon's 1.12 kernel. 100/1100mhz, interactive governor.
More screen time:
My battery drain at idle (next to none) :
Under heavy usage, screen on, running apps (still relatively efficient draw) :
Braneless said:
AOKP Milestone 2 rom with Steve Garon's 1.12 kernel. 100/1100mhz, interactive governor.
View attachment 878231View attachment 878232View attachment 878234
More screen time:
View attachment 878239View attachment 878240
Click to expand...
Click to collapse
Phone model and radio?
I'm back to 1%/[email protected] with everything but wifi enabled.
All sync settings enabled with no sync delay.
G+/data/gallery sync all enabled for 3 accounts. Receiving about 30 emails in 14.5 hours overnight. This should work out to 111h/[email protected]
The question here for me is that I thought Wifi would use less power than 3G given it's such lower range. I thought that when Wifi was associated that your 3G would automatically disconnect, thus using less power when associated to a Wifi AP than when connected to 3G.
Am I mistaken in this? Is this not the desired operation?
*edit* It may be looking like my draw increased by about 8x as soon as I opened the screen for the first time this morning, and hasn't dropped back down to the 1%/h. Right now it seems to be at about 10%/h again, though I'll report back on this later today.
Sent from my Nexus S using XDA App
Wow. What settings this time?
Sent from my Nexus S using XDA App
Paragon_X said:
Phone model and radio?
Click to expand...
Click to collapse
D720 ns4g and latest radio - D720SPRKE1 or whatever it's called.
I'm getting the same...
power drain increases for dunno whatever reason...
right after a reboot it goes ok if I do not touch it... as soon (or five minutes later) as I start playing with it the power drain increases a lot and android OS takes over any other service...
generally to test I wipe the battery stats before booting from recovery...
maybe we should check in logcat what trigger the high android OS usage?
evcz said:
I'm getting the same...
power drain increases for dunno whatever reason...
right after a reboot it goes ok if I do not touch it... as soon (or five minutes later) as I start playing with it the power drain increases a lot and android OS takes over any other service...
generally to test I wipe the battery stats before booting from recovery...
maybe we should check in logcat what trigger the high android OS usage?
Click to expand...
Click to collapse
I've checked logcat/dmesg and haven't seen anything super suspect (to my somewhat untrained Android eyes). I have done a tonne of power management scripting/troubleshooting in laptops and other mobile devices but this is really my first serious foray into Android PM, so I may be missing something.
Paragon_X said:
Wow. What settings this time?
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
As I said, stock settings from CyberGR .v5. Signed in to all three Google accounts and left sync enabled. Turned off Wifi but left everything else enabled.
Drove around (phone paired to my truck for music) for a few hours today, light/moderate use, and I'm currently sitting at 69% battery remaining, coming up on 24 hours on battery. Realistically, this is probably a little lighter use than normal for me, plus I usually plug in when I'm in the Jeep as I'm running not only music over BT to my Jeep, but also streaming OBDii data from my ECU to Torque (and my screen is usually on full time while driving as I like to keep track of my mileage (troubleshooting fuel efficiency as well ).
So all said, stock settings with CyberGr, Radio XXXKB3, Wifi off, everything else on, and I should easily get 2 full days of light use.
Now that said, I'm still waiting for someone getting 3-5 days to chime in. I still feel something isn't quite right.
Wow. Practically the same as myself but my battery is now around 6-7 hrs before I need a charge. I will have to buy a new battery and see if that is the culprit. Over even just flash CM9 instead, who knows..
Paragon_X said:
Wow. Practically the same as myself but my battery is now around 6-7 hrs before I need a charge. I will have to buy a new battery and see if that is the culprit. Over even just flash CM9 instead, who knows..
Click to expand...
Click to collapse
I doubt it's a bad battery. You're seeing the same life I was before I flashed the XXXKB3 radio and re-installed the ROM properly. Follow the installation instructions from the OP and see if that solves your problem.
After looking at an earlier shot here I notice my android os stays on most of the time hence my bad battery. How do I get it to sleep?
Paragon_X said:
After looking at an earlier shot here I notice my android os stays on most of the time hence my bad battery. How do I get it to sleep?
Click to expand...
Click to collapse
So does mine, but it is not an accurate reflection of battery drain, per android engineer Dianne Hackborn. Look at the Android OS percentage in my screen shots - it doesn't matter.
For those with excessive battery drain: install Battery Monitor Widget and Better Battery Stats from the market. Those two apps should provide all the data you need to troubleshoot poor performance.
Also, check your signal strength. Weak reception will drain your battery in a hurry.
I just checked my note drains battery @3% per 5 hour. is it normal.?
i just locked my device n when i checked it was 3% down.. n in cpyspy it says phone was in deep sleep mode all the time.
3% in 5 hours? thats normal drain, what you expecting to have ?
dont know i read somewhere in note forum someone was getting 1% for 8hours. thats why i was asking.
BTW i am on rocket rom v22.
So you thinking your note should last 2 weeks without charging?
3% per 5 hour is super
1% per 8hours sounds unbelievable to me, unless you keep your phone off
Its normal bro. Don't worry, it would not drain your battery that really much in a day. I'm surfing the webs a lot in a day and my batt still not giving up to be drained out to zero
Sent from my GT-N7000
Are you connected to a wireless network?
SayWhat10 said:
So you thinking your note should last 2 weeks without charging?
3% per 5 hour is super
1% per 8hours sounds unbelievable to me, unless you keep your phone off
Click to expand...
Click to collapse
It sounded unbelievable to me too...until last night that is. It was at 100% just before I went to bed and dropped 1% in over 8 hours. Thats 34 days on standby!!
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sent from my galaxy note using tapatalk
If you want to know it exactly, what's going on with your battery: Go to Market and install "Battery Monitor Widget" from 3C. This is a widget which shows every 60 seconds the actual drain. But more importently is the logging-function, called "history". I set mine to update every 60 seconds to get a good idea which thing consums what...
F.e. I got my Note yesterday and put it in flight mode over night. This morning I looked at the history and got a stable 7mA drain - not bad for a 1,4GHz DualCore...
For changing the update-rate of history:
-tab widget
-left sensor --> settings
-history
-update rate history --> 60 seconds
(I don't know the exact names cause I have the german version)
Sounds about right. Mine dropped 3% in 6 hours or so.
Sent from my GT-N7000 using xda premium
I consistently get 1% down throught the night which is like 7 hours. During this time, Cellular data is off, wifi is off, AGPS is off. And after Note has been up for few days, sometimes it will get down by 10% through night due to rouse battery hungry app stuck in memory. Memory clear helps and it is back to regular next night and sometimes I have to reboot. The longest I can go without reboot is like 10 days by then something real battery hungry app is stuck somewhere.
Now I am using app called Tasker which is set to speak battery percentage for every change in unit, I get 3% down through night.
how do you guys avoid touching your Note for so long? i can't put mine down
Being asleep I guess ;-)
ok, if you have your radio turned off, and wifi turned off, and screen turned off, your note can last a couple/few days on standy
I misread, i thought the OP was actually USING his phone and the % only dropped like 1% in 8 hours or 3% in 5 hours which of course would be SUPER
but for me even when im sleep i leave wifi on
i could save more juice by not having the wifi on yeah sure
I have my phone drop into 'phone only' mode at 20% battery. From that point, the amount of battery use is negligible. I believe all the hype about 'standby time' now. I think it could last a week at least like that from a full charge.
The fact is it is good at conserving battery until you use the other features. Then it drains like crazy in comparison.
So to get great battery life:
Turn off WiFi
Turn off mobile data
Turn off auto-sync
Turn screen to 1% (I find 0% turns the screen off!)
Turn off GPS
Turn off bluetooth
Kill all unused apps & services
Turn the screen off.
Or, you could buy a 'dumb' phone, of course! That is effectively what you are doing by this.
Unlike Symbian where app is authorized to initiate said connection (wifi/cellular), it was possible to keep apps like email/fbook poll every 10/15 minutes. In Android, the design is such that apps don't initiate connection.
So during weekend days when email is not utmost important, I use Tasker to turn wifi/cellular/sync on every 15 minutes for short interval of time. This saves a lot of battery drain. But obviously suitable when you do not need to be on the edge of info highway.
Morning!
Second start of the day: 4mA drain in flightmode, 56mA on standby with WiFi on.
And after a full day of playing arround (no games) and getting used to the Note yesterday the battery was still at 50%...
Ah yeah, some more values:
Bluetooth on, doing nothing: 51mA (so it adds nothing more to the standard standby drain)
Bluetooth + Headset, doing nothing: 102mA
jeromepearce said:
I have my phone drop into 'phone only' mode at 20% battery. From that point, the amount of battery use is negligible. I believe all the hype about 'standby time' now. I think it could last a week at least like that from a full charge.
The fact is it is good at conserving battery until you use the other features. Then it drains like crazy in comparison.
So to get great battery life:
Turn off WiFi
Turn off mobile data
Turn off auto-sync
Turn screen to 1% (I find 0% turns the screen off!)
Turn off GPS
Turn off bluetooth
Kill all unused apps & services
Turn the screen off.
Or, you could buy a 'dumb' phone, of course! That is effectively what you are doing by this.
Click to expand...
Click to collapse
I'm certain the Note could do a week on standby.
Doing the things you mention above, I once managed to get my Dell Streak to last for 5 days after I left my charger at my girlfriend's house. The battery was already down to 50% when I left her house, so it lasted 5 days on half a battery!
I think the battery life on my Note is about 25% better than my Streak, so it could easily do a week...
You know, if you wanted it to I can't think of any reason you would want it to, other than being without a charger like I was.
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the LG G7 ThinQ's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Side note: according to the internal predictions (referring the "battery saver" statistics) of the device, the enabled always-on-display only causes a lack of some 30 minutes in a 24h period, so it seems like the impact is rather small.
Regarding other predictions, the display brightness and background data are the main drivers for achieving longer or shorter standby times while disabled vibration does save more than a disable AOD but still only gives you an extra hour or so. Now, disabled background data adds 5 or 6h. This, however, comes at a cost since even email push notices won't get through.
Personally I keep the background data always disabled, but I have added those apps into exceptions whose data I actually care about (gmail, hangouts, google play services and android wear). With these exceptions, the email push notifications and hangouts messages come through normally. Not sure how much battery I save, but I like the control this gives me over apps and what they are doing in the background.
Jeopardy said:
Personally I keep the background data always disabled, but I have added those apps into exceptions whose data I actually care about.
Click to expand...
Click to collapse
Makes sense indeed.
It may sound a silly question but have patient...
According to you at what percentage I have to worry abot the drain?
Before the first update during the night I noticed that the battery never discharged (with Wi-Fi, Data and BT off). After the first update (to be clear the one that introduces the vertical icon for screen rotation) I noticed that the battery during the night discharges 3-5% that it's kind of accectable (Wi-Fi, Data, BT off). I've it may be the phone signal but it's always the same.
Same numbers:
Phone idle 20%
Screen 4%
Android System 2%
Mobile network standby 1%
Android OS 1%
Some apps
Instagram 6%
WhatsApp 6%
Google Play Store 3%
Google Play Services 1% for now. In the previous recharge circle it was 22%
Thank u in advance
LadySarah said:
It may sound a silly question but have patient...
According to you at what percentage I have to worry abot the drain?
Before the first update during the night I noticed that the battery never discharged (with Wi-Fi, Data and BT off). After the first update (to be clear the one that introduces the vertical icon for screen rotation) I noticed that the battery during the night discharges 3-5% that it's kind of accectable (Wi-Fi, Data, BT off). I've it may be the phone signal but it's always the same.
Same numbers:
Phone idle 20%
Screen 4%
Android System 2%
Mobile network standby 1%
Android OS 1%
Some apps
Instagram 6%
WhatsApp 6%
Google Play Store 3%
Google Play Services 1% for now. In the previous recharge circle it was 22%
Thank u in advance
Click to expand...
Click to collapse
My phone always looses between 2% and 5% of battery overnight, with airplane mode and battery saver enabled (not in extreme mode though). I consider normal and acceptable values between 0% and 6/7% during a standby of 7 or more hours.
Inviato dal mio LG-G710EM utilizzando Tapatalk
Erpinoob said:
My phone always looses between 2% and 5% of battery overnight, with airplane mode and battery saver enabled (not in extreme mode though). I consider normal and acceptable values between 0% and 6/7% during a standby of 7 or more hours.
Inviato dal mio LG-G710EM utilizzando Tapatalk
Click to expand...
Click to collapse
Well, my values are more or less like yours. So I guess they are acceptable. I have also read about multiple Google accounts can drain battery through Play Services.
I was afraid that I have already to wipe. It's definitely not necessary
Does anybody knows what is the 'Home' app in battery usage?
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The stock launcher. And that is crazy high. Home doesn't even show on my battery life currently 14 hours
OnceAMatrixMan said:
The stock launcher. And that is crazy high. Home doesn't even show on my battery life currently 14 hours
Click to expand...
Click to collapse
but i don't use stock launcher, that's why call my attention.... today i disable google assistant AOD and see if its one of this features that consume battery as hell
Full 24 hours for me
23 hours off the charger and still going strong with 35% remaining.
I have about the same lifetime from the G7 3000mAh battery as from my P9 Plus 3400 mAh battery because of better efficiency. Overnight drain is close to nothing.
Mine drains quickly overnight, it is like never enters sleep mode.
Last night went from 30 to 0%. I missed my wake-up alarms!
A quick fix is to disable notifications for all apps you just don't need notifications for in app manager, saves a ton of battery life ...
Mine lasts forever on standby. Even this morning. Barely used it and was in standby by for 3 hours. At 99%. I am very satisfied with my battery life.
I love my G7. Made some tweaks but not rooted.
At the moment I have 42 hours and 5h DOT and 23% accu.
I just fixed my standby drain. It was one MAJOR thing that most phones have on and kills standby. Google Location History.
TURN THAT CRAP OFF!! I keep all other sync stuff on, so it is a minor thing.
I've got my G7 for a few weeks, came from Xperia XZ Premium.
I don't charge my phone overnight, usually charge it to around 90% before sleep.
With my XZP the phone would use around 5% or less over night (About 6-8 hours give or take)
But my G7 would use at least 10% overnight
First thing I notice with G7 is that the battery life isn't as good as my XZP
Wildcard36QS said:
Mine lasts forever on standby. Even this morning. Barely used it and was in standby by for 3 hours. At 99%. I am very satisfied with my battery life.
Click to expand...
Click to collapse
At night before bed. I give it a full charge. I then turn off wifi, bluetooth gps, and data.. Wake up in morning down only 3 percent. I always trun off stuff I do not use. If I'm at home, and primarily on the computer, all that stuff is shut off.
I just started noticing a slight drain on mine and I only got it a few months ago, refurb, and at first I was only getting 1% drain overnight (8hr)
Since I have some time off I decided to experiment a bit. I saved every personal photos and info, reset everything as if it was new, left out the SIM, didn't set up Google, didn't set up WiFi, turned off anything related to locations, turned off background data to all but the essential apps but they're not set up with anything so they shouldn't even be pushing anything but they're probably still trying because that's what they do. Anyway, so even the AOD is turned off, finally I left it on the table for 4hrs not even turning on the screen, it drained 2% in 4 hours. I imagine in 8hrs that would be 4% drain. That's probably normal. When I first got it and overnight I had it set up with all the apps I use and overnight it barely drained anything and I was amazed. But that's the nature of batteries, they decay over time. Sucks that it looks like a pain in the ass to replace just the battery. After that if the prices drop on the LG G8 ThinQ I might aim for that in a year. The headphone jack is a must for me.