Battery drainage has been a major frustration for me with my phone. The frustration stems from the many variables associated with battery drainage. For the most part the terrible battery drainage started after flashing the modified ROMs. I believe the stock ROM was respectable when it came to battery drainage.
I am not ignorant to flashing ROMs. I have tried everything to figure out this battery problem; everything to keeping stock kernals, to battery calibration (delete battery stats), to battery bump charging, to matching radio files with RILs, to limiting data syncing, charge cycles etc.
But I am noticing that some of you are able to get good battery usage from a single charge with these modified ROMs. With that said, I want to cut the variables down and see what those folks who are getting over a day's worth of battery usage from a single charge are doing. The best indicator for battery usage to limit variables would be the battery usage standby rate with data network on.
I am not getting any better than 8%/hour on standby for any of these ROMs. That is crap. I wake up in the morning after 8 hours and there is only ~35% battery left. Unacceptable. I figure no more than 10% should be lost in 8 hours of standby.
So for those who have good battery usage, please answer the following questions so that we can eliminate all the variables.
1. What is your standby battery drainage rate?
2. What version phone do you have (TMoUS or EUR)?
3. Clockwork Recovery version?
4. What ROM are you using?
4. What Radio and RILs are you using?
5. How many charge cycles are you doing after the battery calibration and before you are getting the good standby rate?
6. Are you using any battery saving applications?
Please help if you can. Everyone seems to emphasize speed and performance but battery life is number one priority for any phone in my opinion.
Thanks
I'm currently running the P3D Neon ROM. I was having the same issues you are having due to flashing a new ROM jsut about every day. The big thing I noticed is that the longer I stayed with the one ROM the better my battery was. But as I'm sure you already know that no matter what a smartphone is a battery hog anyway.
By the way have you tried this, I am using it and love it !
http://forum.xda-developers.com/showthread.php?t=1128568
Tmobile model sensation
Latest radio with .56
Latest LeeDroid
Anker battery
Latest cwm
Do a charge cycle every time my battery dies
I use battery calibration app from market
No battery saving apps
Standby I have no clue lol it sometimes doesn't budge but sometimes I get 1% every hour and 1/2
Light use I get 26+ hours.
Medium I get 16+
Heavy I get 9+
Hope that helps.
Sent from my HTC Sensation Z710e using XDA Premium App
I've had my phone a week and am using stock Rom. I've S-Off, Root and install backup. Overnite, the battery only goes down 5%
If I were u, I'd get Android Assistant from the Market and check that all apps are closed. Check ur start-up apps and clear ur cache before u shut down ur phone.
Sent from my HTC Sensation
More than likely, there are apps that are not allowing the phone to sleep when the screen is off. CPUstats will show you how long your phone has been in deep sleep, as well as your CPU clock speed.
Here is what I would try out:
1-Get CPUstats.
2-Turn off the screen for the night
3-Check to see how long the phone was in deep sleep mode. It should have been for awhile if not, you have a rogue app that is bothering your phone while it sleeps.
To check your standby current:
So far, we cannot accurately see what it is. I dont know of any app that can for our phones. I do know that the values I see cannot be correct, otherwise my phone wouldnt be lasting long.
1-Write down your current battery capacity in mA/Hrs.
2-Write down the time that you put your phone into sleep.
3-Leave it off for an hour.
4-Wake it up and check the new battery capacity.
An Example:
I started with 1900mA/Hr.
I let it sleep for 1 hour.
I found that after an hour, I was down to 1850mA/Hr. That is 50mA gone, over 1 hour time. So my standby current was 50mA/Hrs.
Now this is only a crude way of judging whether or not your phone is behaving. Since the battery apps update capacity every 5 mins or so, you may not be right on the money, but you WILL know if something is BAD. Calculating 50mA +/- 20mA means the phone is likely sleeping as it should. Calculating 300mA+/- 20mA means something is USING your phone without your permission.
Youll need to find out if some apps are syncing (or trying to sync) while it sleeps. Or, your phone may be trying to improve your signal strength.
Matt
The anker battery will help but it is not solving the problem. We need to be getting around 1-2%/hour standby drain like some of you guys are getting.
mrg02d said:
More than likely, there are apps that are not allowing the phone to sleep when the screen is off. CPUstats will show you how long your phone has been in deep sleep, as well as your CPU clock speed.
Here is what I would try out:
1-Get CPUstats.
2-Turn off the screen for the night
3-Check to see how long the phone was in deep sleep mode. It should have been for awhile if not, you have a rogue app that is bothering your phone while it sleeps.
To check your standby current:
So far, we cannot accurately see what it is. I dont know of any app that can for our phones. I do know that the values I see cannot be correct, otherwise my phone wouldnt be lasting long.
1-Write down your current battery capacity in mA/Hrs.
2-Write down the time that you put your phone into sleep.
3-Leave it off for an hour.
4-Wake it up and check the new battery capacity.
An Example:
I started with 1900mA/Hr.
I let it sleep for 1 hour.
I found that after an hour, I was down to 1850mA/Hr. That is 50mA gone, over 1 hour time. So my standby current was 50mA/Hrs.
Now this is only a crude way of judging whether or not your phone is behaving. Since the battery apps update capacity every 5 mins or so, you may not be right on the money, but you WILL know if something is BAD. Calculating 50mA +/- 20mA means the phone is likely sleeping as it should. Calculating 300mA+/- 20mA means something is USING your phone without your permission.
Youll need to find out if some apps are syncing (or trying to sync) while it sleeps. Or, your phone may be trying to improve your signal strength.
Matt
Click to expand...
Click to collapse
I like this test, I will check it out.
Hi! For a long time i didn't use the 3G connection but only wifi. Yesterday i made a 3G subscription but i faced this problem: when i enable 3G battery percentage remain constant (Full charge) but in almost 2 minutes of normal usage (internet, mail...) battery percentage immediately drains to 0% and phone shutdowns. At first i thought it was the battery that losed health but when i rebooted my battery was still full and i could've used all my apps in wifi normally without any drain. I tried to upgrade to Cyanogen7 but this didn't solve the problem. I have no over/underclock, undervoltage or similiar stuff. I tried these kernels:
On stock ROM:
-Stock Kernel
-Fugumod 2.4beta3
ON CM7:
-Arakmar G3MOD
-"Stock" CM Kernel
Thanks in advance for help
Sorry for bad english
i think that you must change the battery. when you are in 3G battery has heavy power drain and an old battery can't give normal voltage to the phone and it shutdown. it's like an old ups for pc
Maybe it's the problem with your battery... 0.o
Ok i will buy a new battery, meanwhile i've found a provisional solution by undervolting -100mV all frequencies between 83mHz-600mHz, and now phone shutdown less and while my battery has 100-30% charge i can use 3G without any problems.
hi
hi francy
I've got your same problem... could u pls tell me how u undervolted ...
with setcpu?
Is my battery life ok?
I think my battery is losing capacity or something is draining it a lot since few months ago i still could squeeze out of it about 3.5 hours screen on time, nowadays i get barely 2 hrs.
What also bugs me is that when i unplug it from the charger it loses top 10% very quickly. It goes from 99% to about 90% in just an hour or two in standby. Here are some screenshots, I don't see anything suspicious, still, I get less from it than before.
All screenshots are standby with everything shut, no sync, no internet on, nothing, it consumed 15% in about 9.5 hours and before, i got to lose about 1% in about 10 hours in standby.
Stock austrian rom 2.3.6. rooted.
Why are you still on GB?
lol. Because of the battery life and need fully working rom, but battery is very important to me. Tried stock ICS, after 2 weeks had to get back to GB cause of the battery.
Also, is there something wrong when battery monitor reports high kernel consumption? Sometimes in standby when there is more battery drain it shows high kernel consumption
More than 100 views and no comments.
Can you at least say is it normal for launcher to use about 10% of the battery? It's Holo launcher
hi to all friends
I am having battery problems, after flashing stock roms (6, 7 and 8)! and phone idle to Highest battery percentage.
Is there a specific cause?
Did I make the flash tools settings incorrect?!
Last version .58 battery its a joke
4h of screentime with lucky
My smartphone is leeco le 1s and with chinese custom rom 5.9.26 version. Its batter backup was superb when previously i install this ROM. But now its become hard to get any good battery backup. My phone's cell standby and phone idle is draining too much battery. Even sometime more than the screen. What to do.
you can to check with the ROM dev if there is any issue with ROM or its just your setup.