I have xolo q700 , and now it has been 3 month purchasing it. In normal usage it gives me 3+ days of battery life with around 95% of deep sleep It works great but due to deep sleep issue there is a battery drain of around 12-15% overnight .
This issue arises when the battery gets below 15% and I get the Low battery notification, and after that, the CPU does not go to DeepSleep anymore, it stays in the 200MHz area.
The only procedure that will stop the "fuel alert" process is by restoring or by wiping cache partition in recovery mode or removing the battery and attaching it back. After that, everything works fine until the next 15% battery notification
After the 15 % battery notification, it never goes into deep sleep and always stay awake
Charging the phone does not help. After the phone is fully charged and after I disconnect the cable, the CPU continues to stay in the 200MHz area according to cpy spy .Thus I will never get a DeepSleep again, no matter what I'm doing.
I have 4.2.1 jellybean && linux kernal version 3.4.5 . I have only 3-4 app installed including whatsapp that all and my WiFi ,GPS are always off
Does anybody has any idea what shall I do. And why is this happening so? Of course I can charge the phone before getting below 15% but this is not always possible.
I have the same problem with Prestigio PAP4500DUO but my phone stays at 1000 MHz all the time. After restarting, deep sleep works fine until battery reach 15% again.
Related
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 %
Click to expand...
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?
So i put this unnamed rom v 1.1.0 over a day ago and also put the entropy kernel. after i did this initially i wasnt gettin any deep sleep but now after removing facebook widget it went into deep sleep. during the first day i got great battery life , almost 24 hours with one charge. then i charged it last night and now the battery life is pretty bad. it went from 100 to 90 within less than an hour with minimal use and nothing was really working... then i started playin music and that really drained the battery , but even after i close the music programs, they still show up in the partial wakelocks in betterbatterystats.. ive closed the app using running services , app killer and task manager but its still there.. and i have no idea how to remove it.. i tried to reboot but it still showed up...
also besides this the last time flashed unnamed rom on to my phone the same thing happened.. great battery life for the first day but horrible for the second day and so i had to remove it.. any help would be great? thanks
Exactly the same combination.
Still testing this but I do think the battery is dropping really quick.
4% an hour with no operation and deep sleep. Android OS is (the one with no sub items) consumes 18% of battery while cell standby only 3%...
amtrakcn said:
Exactly the same combination.
Still testing this but I do think the battery is dropping really quick.
4% an hour with no operation and deep sleep. Android OS is (the one with no sub items) consumes 18% of battery while cell standby only 3%...
Click to expand...
Click to collapse
4% an hour with no deep sleep = something's holding a wakelock
I came from Cynogen and was also noticing a fast drop in battery life. Things got much better after killing the battery life twice.
-> So far after 2 100% to 0% drains (Calibrating), the battery life has changed for the better.
-> I use wifi when I can. Set sleep policy to off when screen is off, in Spare Parts. I also have frozen half of my OS with Titanium Backup Pro, but I had bad battery even with this. CPU spy says Deep Sleep is working fine. I sync data manually.
My running services are:
Settings (1 Proc)
Task Manager (1 Proc 1 Serv)
Device Management (1 Proc 1 Serv)
Google Services (1 Proc 1 Serv)
Smart Keyboard (1 Proc 1 Serv)
-> Manual Screen Brightness. Using the Status bar sliding finger method if I need brighter.
-> SetCPU conservative seems to work great with Entropy
________________
I change roms like crazy, but will be sticking with UnNamed unless something magical comes out.
Entropy512 said:
4% an hour with no deep sleep = something's holding a wakelock
Click to expand...
Click to collapse
Sorry Entropy, it's with Deep Sleep. I made no operation, not even lit up the screen and info shows it does go to deep sleep. Still drains battery.
cwc3 said:
-> So far after 2 100% to 0% drains (Calibrating), the battery life has changed for the better.
Click to expand...
Click to collapse
Placebo effect - our fuel gauge chip requires no calibration, and in fact, cannot have any calibration method applied to it other than pulling the battery for a few minutes.
amtrakcn said:
Sorry Entropy, it's with Deep Sleep. I made no operation, not even lit up the screen and info shows it does go to deep sleep. Still drains battery.
Click to expand...
Click to collapse
What's the deep sleep percentage? Check my Known Drainers thread.
Before flashing CM9 to my mopho I had only used the stock rom, on Gingerbread my battery would last for 1.5 or 2 days, but since i updated to ICS it dies whitin 10~ hours of idle...
it usually goes from 100 to 70% overnight (6 hours). Recently I purchased Juice Defender Ultimate hoping it would help fix this issue, well... it did help but id didnt solve it, went from 30% overnight battery drain to 15-20% with airplane mode enabled in JDUltimate.. wich is ALOT from what i've read most users are getting (1-2% overnight, am i right?).
I've wiped my battery stats over and over (even tried the market app method) and nothing has changed.
I installed BetterBatteryStats and Watchdog from market, and both of them and the android battery stats show that "suspend" or phone idle are the cause of my battery dying so fast.
If anyone experienced anything similar and knows a way to fix this I would really appreciate it!!
Ive never seen my Photon go overnight with only a literally 1-2 percentage loss.. Not on stock, Cybiks CM7, or on CM9. but it usually only drains maybe 10 or 15 percent on higher end so nothing major. Talking ~8 hours off charger idle with random text or two and led going nuts blinking all night with data/wifi/bluetooth etc off but NOT in airplane mode. Are you on latest CM9 build? My bet is you have a random app screwing with phone keeping it from entering sleep mode or whatever its called. Check the "Awake" time under the battery settings to see if the awake time is allot higher than the "Screen off".
I have the same problem, no matter what kernel, no matter what cm9 build, still draining too much in idle. I know, others don't have such draining. But I give up and I am back on cm7, where everything seems fine.
I noticed that this happens to me as well. Previously, I fixed this by re-calibrating the battery. Now I was suspecting skype, but it is not causing this. I have noticed that having both GPRS/3G enabled and Wi-Fi drains power very quickly (about 4 times faster than having only one of those switched on). I'm using Photon in Europe in GSM network, so not sure is it the same with CDMA.
w0lf215 said:
Ive never seen my Photon go overnight with only a literally 1-2 percentage loss.. Not on stock, Cybiks CM7, or on CM9. but it usually only drains maybe 10 or 15 percent on higher end so nothing major. Talking ~8 hours off charger idle with random text or two and led going nuts blinking all night with data/wifi/bluetooth etc off but NOT in airplane mode. Are you on latest CM9 build? My bet is you have a random app screwing with phone keeping it from entering sleep mode or whatever its called. Check the "Awake" time under the battery settings to see if the awake time is allot higher than the "Screen off".
Click to expand...
Click to collapse
during night, "Awake" seems to be up about 50-60% of the time, a lot more than "screen on"
I´ve read that setting your phone to "never turn screen off" shuts down suspend process and battery actually lasts longer, has anybody tried this??
Are you guys logged into Latitude? I signed out of it yesterday and now after 10 hours on battery, although 6 of it was sleeping, I still had 86% left.
knG333 said:
Are you guys logged into Latitude? I signed out of it yesterday and now after 10 hours on battery, although 6 of it was sleeping, I still had 86% left.
Click to expand...
Click to collapse
Thanks, I logged out already will report back after some time
I am not sure, but never logged in latitude myself, so I think, no.
And CPU was perfectly sleeping with turned off screen. But still the same draining. And what I know, it has nothing with gsm.
I as well am having the same problem, dropped from 88% to 72% within 20 minutes.
phone idles killing my battery at 50% any fixes?
try wiping battery stats in recovery with a full charge
My phone is ZTE V967S. The CPU is MT6589.
Several days ago, I found battery draining is much faster than before. It takes 5% per hour just in idle.
The only abnormal thing I noticed is the CPU status in Trickster Mod. Almost no deep sleep, 94% time is running in 1.2g. In fact, the screen on time is less than 1 hour.
I also checked wakelock but no app went wild.
Even after I clean flash the official rom. The CPU still cannot goes into deep sleep. I also tried many other roms like LEWA and carliv's rom but still no luck.
Eventually, I use Deep Sleep Battery Saver and it can force the CPU to deep sleep. But I don't really like using "battery saving" app.
Anyone has any idea. Please help my poor MT6589 to deep sleep like normal without 3rd party app.
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.