My battery life was very good in Mini. I used the phone for normal talking (around 30 mins) and 3-4 hrs of GPRS and battery wwas kept around 20-30% at
10PM after fully charged at 7AM. At that time the battery usage status showed something like this.
Display -40-50%
Android System 10%
Cell Standby 2-5%
Phone Idle 2-5%
Others (not remebering)-the remaining
Suddenly two days ago my battery started dischrging very fast and my full charge at 7AM came to zero at 4.30PM with similar use as stated above. But this time the battery usage shows something like this and consumption always remains highest by phone idle & cell standby parameters.
Phone Idle 40%
Cell Standby 30%
Android System 8%
Display 20%
Others - remaining
Now, my battery is draining a lot faster than it ever had two days back.
My battery had consistently been draining at around 1% per hour idle until today. Now I'm seeing it drop 5% in LESS than an hour while idle (idle meaning the screen shuts off and I don't use it).
So my question is, what do Cell Standby and Phone Idle mean? Previously they had both been 2-5% and my idle battery use was excellent. But today they both shot up to the 30-50% range and I'm thinking this may be the cause for the excessive battery drain even while the phone is sleeping.
I have not changed anything during these two days. But again to be sure I "Factory Reset" the phone and reinstalled all the software again but found the problem persisting. Moreover, during my travel to office (which takes about two hours) I find battery drain is minimum and same as my earlier days, i.e., it drains very slowly but once I enter my office hall the rate of drainage increases, But previously in the hall also the drainage rate was very low.
My queston is what may be the cause of this?
The only change which I feel is deterioration is signal level because the calls now frequently gets disrupted which was not the case earlier. Can this be the only cause for such high battery drainage ?
An exactly similar experience can be found in some other blog whose link is below ( for reference only)
http://androidforums.com/evo-4g-tip...cell-standby-phone-idle-mean.html#post1579318
Anticipating some advice/solution for improvement from the geeks here.
Thanks
i noticed i had the same issue whenever i installed some apps from the market...i noticed in particular a data counter to screen my phone bills and Quick Profiles.
So i suggest to think abotu the last installed apps and try to remove them one by one until you find the guilty one.
Remember afer uninstall to reboot your phone or you won't notice any difference
Have you recently rooted the phone? When I did mine I found there was a shell process left running that was eating battery (but doesn't show in the battery info screen) - Turning off and on again sorted that out
Thanks for reply. I will try your advices. But today I morning I switched off my charging at 4.45 AM and now at 6.37AM I am seeing my battery at 99% ot bad. Let me see throughout the day.
Even i am experiencing this problem
Phone Idle is 59% and Cell standby 37% for me?
Now i have removed all task managers and Info apps
lets see what happens to the battery life
@acemadmav
Your advise helped me to track my problem. I also use a Data Tracker software which was refreshed at 2 min and was the cause of battery drain. Now I have set it to 30 mins and my phone is back to full battery strength. Discharge started at 7.30AM after full charge. Attended not less than 45 mins of call, an hour of GPRS and I am still at 50% at 10PM.
@tejagamer
My Phone idle & Cell Standby is still high at 30% and 25% respectively. I googled about this and found that "Phone Idle" is the state when phone uses minimum battery required to keep the electronics of the phone alive and "Cell Standby" is battery consumed for communicating with cell towers in standby mode. Finally, when battery consumption is ok the percentage used by Phone Idle & Cell Standby doesn't matter.
Thanks
parthabhatta said:
@acemadmav
Your advise helped me to track my problem. I also use a Data Tracker software which was refreshed at 2 min and was the cause of battery drain. Now I have set it to 30 mins and my phone is back to full battery strength. Discharge started at 7.30AM after full charge. Attended not less than 45 mins of call, an hour of GPRS and I am still at 50% at 10PM.
@tejagamer
My Phone idle & Cell Standby is still high at 30% and 25% respectively. I googled about this and found that "Phone Idle" is the state when phone uses minimum battery required to keep the electronics of the phone alive and "Cell Standby" is battery consumed for communicating with cell towers in standby mode. Finally, when battery consumption is ok the percentage used by Phone Idle & Cell Standby doesn't matter.
Thanks
Click to expand...
Click to collapse
glad to help...it's been some months i'm "testing" my X10 mini about this kind of things, so i'm getting used to track down problems on my phone
Let's collect some statistics regarding battery discharge rate when tablet suppose to be asleep, like overnight.
I'll start:
ROM - TnT lite 4.2, WiFi On, BT Off, in 10 hours 14% charge drop - 1.4% per hour.
with WiFi Off - around 1% per hour.
I was killing all apps on background before going asleep but this does not affect discharge rate too much, maybe 0.2% and as well might be just measuring error.
What is your tablet's discharge rate?
vegan 5.1.1 clean install, no additional kernel/OC tweaks
lost 30% over 6.5hr of sleep. battery usage shows very little idle time and alot of "android system". i wonder if that means something stayed awake and kept the tab from sleeping or what. o, and wifi was on and awake the whole time too
anyway to put this thing to sleep and last a few days like my HTC mytouch3g when i put it into airplane mode? that phone would drop to the lowest clock speed and sleep with very little battery drain
atb1183 said:
vegan 5.1.1 clean install, no additional kernel/OC tweaks
lost 30% over 6.5hr of sleep. battery usage shows very little idle time and alot of "android system". i wonder if that means something stayed awake and kept the tab from sleeping or what. o, and wifi was on and awake the whole time too
anyway to put this thing to sleep and last a few days like my HTC mytouch3g when i put it into airplane mode? that phone would drop to the lowest clock speed and sleep with very little battery drain
Click to expand...
Click to collapse
Why not just power it all the way off? Deep sleep is essentially Off anyway, minus the bootup time.
Cold start is about 50 seconds. When starting from standby - almost instant.
It would be nice if our GTablet can go into standby and don't lose charge with that rate.
Vlad_z said:
Cold start is about 50 seconds. When starting from standby - almost instant.
It would be nice if our GTablet can go into standby and don't lose charge with that rate.
Click to expand...
Click to collapse
Nice, but impossible. Just plug it in overnight. If you want it "always on" you can expect about 16 hours of standby with 4-6 hours of use mixed in. I'm so used to daily charging it doesn't even bother me anymore. Just really happy this thing goes all day on wifi without deep sleep... good enough.
Well, I am inclined to think that this is a software problem (Android OS). Xoom with HC does ok when in sleep mode. Someone say 3%-4% overnight.
Vlad_z said:
Well, I am inclined to think that this is a software problem (Android OS). Xoom with HC does ok when in sleep mode. Someone say 3%-4% overnight.
Click to expand...
Click to collapse
Only way it would do that is deep sleep. As in, nearly off - everything powered down except ram, CPU halted.
That's essentially the same as putting your laptop to sleep, vs power down.
The GTab's deep sleep sucks. Not sure what's wrong with it, but it's below the level of android. So it could be a firmware issue. I'm happy with the 2-3% per hour drain when "on" but screen off, connected to wifi, able to generate alerts and alarms.
So, my interest was piqued
I use pershoot's UV/OC kernel, keep wifi on all the time, and use softlocker to make sure my gtab *never* deep sleeps. This is on Vegantab-ginger.
I installed batterymonitor widget, and am collecting data.
First interesting tidbit, my "screen off, but wifi on/not really asleep" power drain is 125mA
Given the 3650mAH rating of the battery, that gives me 29.2 hours total standby time in this state.
Working backwards, that's a drain of just under 3% per hour.
You're actually seeing MUCH WORSE than that, at 4.6% per hour (30% over 6.5 hours) so I agree with you, your software is doing something very bad. You can get nearly 50% better battery life by using gingerbread, pershoot's kernel, and keeping it from going into deep sleep
my tablet lose near 10 %
n21klin said:
my tablet lose near 10 %
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Click to collapse
Any more details? Number of hours on standby? ROM version? Was it deep sleeping (wifi off, clock/time not updated until a few seconds after power on?)
Assuming 8 hours or so sleeping, this is much closer to the expected 1.125%/hour discharge rate for "deep" sleep, or about 90 hours total on deep sleep standby.
schettj said:
Any more details? Number of hours on standby? ROM version? Was it deep sleeping (wifi off, clock/time not updated until a few seconds after power on?)
Assuming 8 hours or so sleeping, this is much closer to the expected 1.125%/hour discharge rate for "deep" sleep, or about 90 hours total on deep sleep standby.
Click to expand...
Click to collapse
if that was indeed true (that you manage to get your tab to sleep for 8 hrs and only losing 10%) then i want whatever you got. I want my tab to be able to sleep for 3-4 days, even if it mean having to settle for JUST 1.0 Ghz
The lowest I've seen so far in batterymonitor widget is ~108ma draw (screen off, 214mhz clock, wifi off)... if the thing goes into "deep sleep" then batterymonitor (and everything else) stops dead, since the cpu is halted - you'd need to poke it inside to see what the load is when deep sleeping.
108mA gets you to 33 hours. To get to 72 hours you need to get the load down to about 50mA. That's the budget to keep the ram chips powered, and the on/off buttons
Battery drain with ext3 partition and S2E?
Is there a perfect way to check what's draining your battery? Recently I've been noticing that my battery consumes almost 20% of charge during night, whereas it used to only eat about 5% in my previous installation of CM7.
First install of CM 7.0.3 - Good battery life, night drain is only about 5-8%.
Second install of CM 7.0.3 - Worse battery life, night drain is about 25%.
The main difference in the second install in that I have made an ext3 partition in the sd card and I am using S2E and have moved some apps to the sd card. Will this consume more battery?
Had a look at the battery history in spare parts, and I see that the partial wake usage by Maps and K9 mail topped the list. Uninstalled both to see it they were the issue. I have Juice defender plus where I have configured data off hours from 12:30 am to 6 am. Still it drinks battery. Any thoughts?
last 3 nights I noticed huge battery drain, about 1% per hour, anybody knows where is the problem?
my tab runs stock ICS rom and stock kernel
thanks for help
after some diagnostics I found that GoogleServicesFramework is battery drainer (not sure, it has most wakelocks in betterbatterystats - about 50 in 5 hours and its awake time is about 1:30)
Try the OsiMood ROM http://forum.xda-developers.com/showthread.php?t=1677281. I previously was very disappointed in battery life, but after switching to OsiMood battery life is much much better - especially in sleep mode. Overnight unplugged it drops only 1-2%.
I downloaded autostarts and disabled startup of GSF on every event and left only Application Installed event (if disabled, market wont download any app)...seems that battery life is back to normal...99% at the morning (no keep awake time in battery stats) so it is fixed without changing rom , I did this procedure also on my phone and its battery drain during night is greatly reduced
This has been happening for a week now. My phone drains battery like 8-10% per hour. I have Wakelock detector and Better Battery Stats. They show almost no wakelocks. wakelocks are at 5%, the rest of the time it is sleeping. I'm on Cloudy G3 last version.
When using it non stop from 100% to like 5%, my phone lasts the same as before (3h - 3h30m, brightness at 80%), the problem is sleeping.
I tried Shutting Down, new kernel, unninstalling the apps I downloaded last 2 weeks, and now I flashed CyanogenMod 11 M12. This happens on CM too.
Any solutions? Is there something wrong with the battery, my phone?
Screenshots attached.
Thank you.
I did a complete charge last night before I hit the sack. Battery was around 96%, today morning 80%!
I flashed stock ROM using TWRP, on first charge cycle battery is fine - just 1% overnight drain with 8 hrs SOT. On second charge cycle this issue hits me everytime.
All my radios are usually off (WiFi, NFC, Bluetooth, Data).
Android system sucks my battery during sleep and it was at 90% consumption when I woke up (See screen shot #1).
My phone seems to be in deep sleep a good portion of that time (See WLD statistics #1).
Also attached screen shots from WLD for Summary, Kernal / Partial wakelocks & Alarms.
Device is rooted.
Going crazy trying to find out what's happening.
I have tried 3 different ROM's which have great battery life as reported by other users here for my mobile (Mate 8). But I always end up with the same battery drain issue on second charge cycle after flashing a ROM.
.
Bump! Anyone?
Any experts that could help out here?
I have searched a lot but no solid solution.