Is there a mod I can put on my phone to make the battery last? It's usually like 45-50 around 1 or 2 ... I feel like it drains too quickly.
I'm running Saurom.
Thanks
What I do is toggle off data/wifi and any other battery draining process when I'm not using the phone. You can also use system tuner or setcpu to underclock the processor to 192mhz and set the governor to "on demand". Your phone should be in deep sleep mode while the screen is off- or at least 192mhz max.
I use these settings and my phone will still be at 90% or higher until I leave school at 1pm.
Also, if you turn off data you can still receive calls/SMS, just nothing else.
Sent from my SAMSUNG-SGH-I717 using XDA
Look for "GO Battery Master" in the Google Play
This worked for me.
Coffinfeeder said:
You can also use system tuner or setcpu to underclock the processor to 192mhz and set the governor to "on demand". Your phone should be in deep sleep mode while the screen is off- or at least 192mhz max.
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Click to collapse
The key is to verify you're getting to deep sleep. If not, expect only 12 hours of battery life, with no actual use. If you're not getting to deep sleep, reboot your phone, and then ensure that your phone is awake before unplugging the charger.
The only change I've made, is to set my min speed to 192 and ensure deep sleep is working. I can now use my phone for 2-3 hours, go 18 hours, and still have plenty of battery left (around 30 percent, yesterday).
isdanreally said:
The key is to verify you're getting to deep sleep. If not, expect only 12 hours of battery life, with no actual use. If you're not getting to deep sleep, reboot your phone, and then ensure that your phone is awake before unplugging the charger.
The only change I've made, is to set my min speed to 192 and ensure deep sleep is working. I can now use my phone for 2-3 hours, go 18 hours, and still have plenty of battery left (around 30 percent, yesterday).
Click to expand...
Click to collapse
You'll still get plenty of battery life as having on cellular data or wifi when not needed kills the battery pretty bad.
But deep sleep is definitely something you want to make sure is working as well.
Sent from my SAMSUNG-SGH-I717 using XDA
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
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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.
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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.
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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?
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
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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.
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Click to collapse
What's the deep sleep percentage? Check my Known Drainers thread.
Does anyone else get this issue? If I turn it on in the morning, by the time I am home from school, it's down to 60% without even using it. I am on 2.3.5 if anyone wants to know, and I don't have any cpu intensive apps installed
You might try installing http://www.appbrain.com/app/powertutor/edu.umich.PowerTutor to see if you can pinpoint the problem. If wifi is on it will drain 3-4% per hour anyway. Make sure you don't have anything trying to sync (auto-sync off), like weather or news widgets. If you're on wifi all day and syncing, you can easily lose 40% in a day.
tcat007 said:
If wifi is on it will drain 3-4% per hour anyway. Make sure you don't have anything trying to sync (auto-sync off), like weather or news widgets. If you're on wifi all day and syncing, you can easily lose 40% in a day.
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Click to collapse
3-4% per hour if wifi is being actively used, as opposed to connected and in power saving mode I would imagine, as my device still has ~80% battery (from inside Settings, the battery icon on the main screen is still full) after sitting on my bedside table for just over 13h (I wasn't asleep for all of that, unfortunately!)
YMMV of course.
Not too "active"... but the battery is real wacky. It will "sit" at 80% while charging, and "sit" at 100% or 80% much longer than others. Yeah, mine with wifi off at night will only lose 0-5% in 12 hours. Sure wish it would do 1% increments and be more reliable! Using Batt Monitor Widget, the mV readings seem MUCH more accurate than system % readings... just wish the system would use mV readings to determine % left.
bought I9300 phone yesterday, and it drains battery like 15% per hour of normal usage.
so i rooted the phone to undervolt, and even undervolting im having same issue. it does not drain battery in idle mode,
but as long as the screen is turned on, the battery drains very quickly and also the phones temp goes up to almost 40 degrees.
u can see in the picture that batt drainage per hr is around 15%+ when in use and when its idel its only 2%+
its stock rom and stock kernel, can some one help me?
yjsjin said:
bought I9300 phone yesterday, and it drains battery like 15% per hour of normal usage.
so i rooted the phone to undervolt, and even undervolting im having same issue. it does not drain battery in idle mode,
but as long as the screen is turned on, the battery drains very quickly and also the phones temp goes up to almost 40 degrees.
u can see in the picture that batt drainage per hr is around 15%+ when in use and when its idel its only 2%+
its stock rom and stock kernel, can some one help me?
Click to expand...
Click to collapse
Not quite sure how you are undervolting with a stock kernel...
But if I am understanding you correctly, you are losing 15% per hour of usage? Meaning with the screen on you are losing 15%/hr? If that is the case you are looking between 6-7hrs of screen time per charge... and that is average to above average for screen on time for the phone.
If you do actually undervoltm it should help with the heating problems... Mine barly registers as warm now at -75mv even when playing a game...
yjsjin said:
bought I9300 phone yesterday, and it drains battery like 15% per hour of normal usage.
so i rooted the phone to undervolt, and even undervolting im having same issue. it does not drain battery in idle mode,
but as long as the screen is turned on, the battery drains very quickly and also the phones temp goes up to almost 40 degrees.
u can see in the picture that batt drainage per hr is around 15%+ when in use and when its idel its only 2%+
its stock rom and stock kernel, can some one help me?
Click to expand...
Click to collapse
I solved mine....
Drain your battery till it gets empty....
Then charge phone without turning it on....
Exactly 2hours 10 minutes it will be fully charged...
Then turn on phone..
Works for me.
NewAussiefromCanada said:
Not quite sure how you are undervolting with a stock kernel...
But if I am understanding you correctly, you are losing 15% per hour of usage? Meaning with the screen on you are losing 15%/hr? If that is the case you are looking between 6-7hrs of screen time per charge... and that is average to above average for screen on time for the phone.
If you do actually undervoltm it should help with the heating problems... Mine barly registers as warm now at -75mv even when playing a game...
Click to expand...
Click to collapse
hmmm really? its weird that this is suppos to be normal. before i had my pebble blue Tmobile version phone before, and that it only drains less than 10% with screen on, so it feels like this new phone is draining so much power.
i did undervolt with stock kernel with tegrak ultimate however its same temp with same usage i think
yjsjin said:
hmmm really? its weird that this is suppos to be normal. before i had my pebble blue Tmobile version phone before, and that it only drains less than 10% with screen on, so it feels like this new phone is draining so much power.
i did undervolt with stock kernel with tegrak ultimate however its same temp with same usage i think
Click to expand...
Click to collapse
You could always try another kernel to attempt undervolting your phone to see if there is an effect.
I do agree that 40C is far to high for standard running temp..
Screen Brightness settings the same with your old TMobile version?
Power Saving Mode Enabled?
Crest+ said:
I solved mine....
Drain your battery till it gets empty....
Then charge phone without turning it on....
Exactly 2hours 10 minutes it will be fully charged...
Then turn on phone..
Works for me.
Click to expand...
Click to collapse
yeah this is my 1st full cycle, but i doubt that this cycle will help for i think its the software/hardware prob... with the heating and stuff
NewAussiefromCanada said:
You could always try another kernel to attempt undervolting your phone to see if there is an effect.
I do agree that 40C is far to high for standard running temp..
Screen Brightness settings the same with your old TMobile version?
Power Saving Mode Enabled?
Click to expand...
Click to collapse
so if i undervolt using kernel... is it possible to re-install the stock back?
and which kernel should i use?
the tmobile one im using same setting as that.. and i dont power save.
Uninstall those korean bugged apps. Use BBS to check wakelocks and CPU states.
Than report here
okay this is my stats and I dont know whats wrong, nearly no wakelocks but 3G is draining this battery like a maniac
2:30 screentime
30 music player
anyone knows how to solve this drainage ?????
Sent from my GT-I9300 using xda app-developers app
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.