Right now I'm using cyanogen 6.1 but I'm noticing a lot of battery drain and on my car charger my phone continues to drain even while charging. I don't want to go back to stock because I love features like portable wifi, but I'm a heavy user and I need solid battery life. Any ROM suggestions for me that I can flash through clockwork while I'm at work? Or any ideas on how I can fix the battery on my current CM ROM?
first about the battery life... Got to settings, about phone, battery use. What is eating up your battery? usually display eats up most of my life. Try turning your display down... Maybe you have a rogue app running in the background eating up your juice?
As for ROMS, the stock ROM does have wifi hotspot and USB tethering. Perhaps try the stock ROM for a while and see if that makes any difference? It could be a battery problem/ issue. There is a great app for CM that allows you to see your battery life/wear @ http://forum.xda-developers.com/showthread.php?t=765609
The ROM I have been using is here: http://forum.xda-developers.com/showthread.php?t=714184. It is very close to stock, but has many performance tweaks and such. I use it with this kernel : http://forum.xda-developers.com/showthread.php?t=820172. By far the best battery life on any ROM/kernel combination I have tried. Both can be flashed by Clockwork.
Also, when Gingerbread finally gets here, there is a much updated and detailed battery meter installed with graphs. Hopefully it will only be a few more weeks.
I have not yet updated my Captivate to 2.2. Reading posts in regard to the update I am very bothered by a common complaint that battery life has just died. My Captivate has excellent battery life using it fairly heavily over a 1 day period. I charge it every nite. Also, my GPS is workng fine in 2.1. So am considering not updating it due to the problems I am hearing about.
Anyone else have input on battery life after the update??
I went from STOCK 2.1 to Cognition 4.1 (built on Froyo 2.2) and my battery life is about the same. My usage varies wildly from day to day, but as best as I can tell, overall battery consumption is about equal.
I wonder if the people complaining about battery life have set up their phone "post-update" with different apps or turned on "apps syncing background data"...
Battery life did reduce on 2.2 but it is obvious in my point of view. But its not too bad either.
it's about the same, i upgraded to stock 2.2, feel no difference on the battery life. moderate usage last mine for about more than 24 hrs, u should update to froyo for you to experience it.
Sent from my SAMSUNG-SGH-I897 using XDA App
SnackCracker said:
I went from STOCK 2.1 to Cognition 4.1 (built on Froyo 2.2) and my battery life is about the same. My usage varies wildly from day to day, but as best as I can tell, overall battery consumption is about equal.
I wonder if the people complaining about battery life have set up their phone "post-update" with different apps or turned on "apps syncing background data"...
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I upgraded Stock 2.2 end of Feb and noticed a big drop in my battery life the first week. But just reading above, i did turn on "apps syncing background data" so i think that's my problem. Just turned that off so we shall see...
Let your phone go through a week or so recharging cycle before judging its battery life after a ROM flashing. You just lost all your battery stats when flash a new ROM. Your phone/OS has no clue how your battery will operate until it has time to learn or you manually calibrate it.
For what it is worth, my battery life is about the same or slightly better than leaked 2.2 ROM as well as 2.1 ROM. No big changes.
My battery has been about the same since the 2.2 upgrade. At first it felt like my battery was draining quicker but I also noticed I was playing with more phone more. The screen is the biggest power drain on the phone so just playing with menus and looking at new settings can cause a small dent.
Give it a week or two after upgrading and you'll notice it'll be about the same. Unless of course you have more accounts or programs syncing data in the background.
Why upgrade to 2.2
Thanks everyone for the input. The more I read and hear the more I am leaning toward not upgrading to 2.2. On different forums I am seeing and hearing problems with battery life and some saying about the same battery life. Also, seeing GPS not being fixed or going from working ok or good to not working so good. Right now my phone does everything I want, GPS works really good, email works fine, internet works fine, battery life is outstanding, mp3 works great, screens all are clean and to my liking, I have an easy work around for turning off 3G and one tap returning my volumes to normal after using a USSD code.
REally cannot see any advantage to upgrading and risking introducing a problem I don't need. The list of new features really does not thrill me.
gstreff said:
Thanks everyone for the input. The more I read and hear the more I am leaning toward not upgrading to 2.2. On different forums I am seeing and hearing problems with battery life and some saying about the same battery life. Also, seeing GPS not being fixed or going from working ok or good to not working so good. Right now my phone does everything I want, GPS works really good, email works fine, internet works fine, battery life is outstanding, mp3 works great, screens all are clean and to my liking, I have an easy work around for turning off 3G and one tap returning my volumes to normal after using a USSD code.
REally cannot see any advantage to upgrading and risking introducing a problem I don't need. The list of new features really does not thrill me.
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2.2 ROM is a big step forward, not backward, IMO. Sure it didn't solve GPS issue but it is not making it worse either. GPS issue is purely hardware issue. If you have a good one, it doesn't matter which stock firmware you use.
I just can't see any disadvantage for upgrading (other than slightly more difficult to root or unlock, but not impossible). Battery life thing is as I mentioned above. You will see all kinds of complaints (either dain too fast or too slow) after a new firmware comes out, any firmware. You don't know what you're missing until you upgraded.
I noticed a big improvement in battery life. Sometimes with light use it will last up to four days, whereas before with 2.1 it would putter out after maybe two days.
GPS isn't fixed, but drop one of many GPS fixes in and it will get somewhat normal performance.
Wifi sleep policy
You may also want to check the Wifi sleep policy after the upgrade to Froyo. In my case, the default was "Never sleep". Changing this to "When screen turns off" improves battery life on 2.2, as it does on 2.1.
Just my $.02 worth.
foxbat121 said:
Let your phone go through a week or so recharging cycle before judging its battery life after a ROM flashing. You just lost all your battery stats when flash a new ROM. Your phone/OS has no clue how your battery will operate until it has time to learn or you manually calibrate it.
For what it is worth, my battery life is about the same or slightly better than leaked 2.2 ROM as well as 2.1 ROM. No big changes.
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I'm on stock 2.2 since the day it came out. My battery life is actually trending worse day-by-day. I did a full battery clear/reset this weekend and after 4 days I'm finding battery life is not improving at all. The degradation from stock 2.1 is significantly noticeable to me.
For the first couple of days post-update it seemed actually to be better, but got worse and worse, to where I was lucky to find the phone working 12 hours after disconnecting from the charger @ 100% ... even if I hadn't -touched- the phone during the day. My applications loaded are virtually identical to before.
I did have Background Data on, so I've just disabled it, but was this option not in 2.1? I know that Google Voice, etc, were doing background syncs in 2.1.
It can't be WiFi, as for the last 2-3 days I've kept WiFi turned off. However just for sanity I did adjust the sleep policy.
I'm wondering ... my battery woes seemed to start when I hooked up my Microcell. Could having a strong 3G signal so close to the phone actually be causing problems?
jahfry said:
I did have Background Data on, so I've just disabled it, but was this option not in 2.1?
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it is the same as in 2.1.
I'm wondering ... my battery woes seemed to start when I hooked up my Microcell. Could having a strong 3G signal so close to the phone actually be causing problems?
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That might be your problem. I don't know. I know 2.1 doesn't work very well with microcell either.
Yep. I'm pretty convinced it is the microcell now. Phone works great with it from a call/data/signal standpoint. However after unplugging my microcell last night, charging my phone to 100%, and then letting the phone discharge normally with no microcell ... I'm now 10 hours later and have an almost full battery.
Sad, because our reception here is so spotty that we lose calls and data regularly without the microcell. My wife says her phone charge has been pretty normal, so I'm getting ready to move the cell away from my desk and see if distance helps the story.
So, as far as this thread is concerned, my results for 2.2 and battery life are great ... better than with 2.1 ... just don't use it with a microcell.
Froyao 2.2 Battery Usage Dillema
I see no significant or excess battery drain while riding the KB1 over the JF6.
Just a thought for those experiencing excessive or significant battery drain. KB1 loads some new features and new additional bloatware that loads on boot and runs as a service, process and both.
If you're familiar with poking around your system settings and understand what doesn't need to always be running in the background, or what doesn't need to load on boot, you can simply kill the process and even alter the way a certain application handles on boot.
By killing many unneeded or unwanted processes at boot time, it will significantly save you hours upon hours of battery life in the longer scheme.
Another FYI, Lithium Ion batteries have memory. You need to train or retrain the batteries memory over time in order to sustain a longer life for it.
Tips:
Don't continually through the charger on your device after minimal drainage. Let the battery run down before fully recharging it again.
When flashing to another ROM wipe your battery stats.
When flashing any new code to your device - a few forced charge deaths to purge the battery and reset the memory again prior to recharging may be a good idea...
Hope this helps...
Peace-
Liv33viL
So I've been testing CM9 for quite a while now and can't help notice the battery life has been reduced heavily compared to Honeycomb 3.x.
Now, I don't mind that my battery life gets a bit shorter as ICS brings more features and might be more power hungry. But I went from my tab being able to hold a charge in standby mode in 3 weeks to barely 3 days. And if I use it more heavily, it barely holds a day, which is worse than my Motorola Atrix and that's just not normal.
Now, I've been discussing this with pershoot and for him it must coming from something I do. Honestly I don't see what. In the Honeycomb days, I used to have so many apps installed (may 100-150) and battery life was fine. In CM9, I'm running 50 apps, the essential ones. All the apps that could be power hungry have those settings set to off. No push notifications, very large updates intervals (a day) or none when possible. Also, I run most on these apps on my Atrix (which has more apps installed) and my battery life is way better on the Atrix.
In usage itself, I don't see any change, it seems the tab consumes the same amount of battery than before. It's the sleeping battery life that is terrible. In my case, in sleep mode, wifi is off, brightness is set to Auto and data is off (not the signal itself but I tried to take off the SIM and the battery life is the same).
Honestly, not having to care about charging every day is a must feature for a tablet.
I'm running now RS125 ICS, based on stock and the issue is also there. So I wouldn't say it's something related to CM9 but more on how ICS behaves with our tab.
I've read report of other people complaining (with the 10.1 also) so I wonder if it's a general issue. Could you please fill the poll so we can see if there's an issue and if so, how could we identify it ?
Don't hesitate to describe your tab usage and battery life !
Thanks !
For me worsts battery life was with the official 3.0.1. 3.1 was big improvement. 3.2 and 4.x were a little bit better than 3.1.
Got gmail and exchange push notifications turned on, but most of the time the tab is connected to the wi-fi, not to the 3G network
Attached is my personal stand-by record on the 10.1v. I think it was with one of the first pershoot's CM9 roms
Hi Danny,
Same for me. Especially the standby mode I see a battery drain.
By the way, somehow my battery usage is not working since I moved to the official ICS ...
Cheers
No problem @all. Stock 4.0.4 with OC kernel.. Looks like this:
GT-P7500 [email protected]
Kernel info...
GT-P7500 [email protected]
I've got a rooted galaxy note, and have been using a few different roms recently,
i stuck with 1 certain rom and the battery is fine, lasting me a full day easily.
but recently after changing roms a few times, it dont matter which rom i use, my battery dies really quickly.
so, my question is....
could this be because i've changed roms a few times?
and is there a file or something i can go into and erase all the stuff i dont use on the phone?
I'm lost as to why my phone dies so quickly now.
this isn't due to flashing of many different roms. i have flashed 9 roms in a single day! the problem here is maybe the roms that you flashed are making the phone run on high cpu speeds thus rendering a bad battery performance. i'll strongly recommend you the 4.2.2 supernexus rom by faryaab. it is very limited in functionality but it is a bug-free stable rom which provides an excellent battery performance
I have this i9001 and I want to flash it with something that makes it moderately useful. I used to had CM 12.1 which is Android 5.1 and the problem is that its too damn slow. I tried disabling high end graphics card, limitting apps and background processes to 4 but its just too slow. I have to say that the battery life is very good with this, in one night goes from 98 to 91%.
Now, to make it faster I tried CM 11, which is android 4.4.4, its certainly faster but drains the battery like hell. I tried the same, limit process and services to 4, disabled wifi, mobile data, obviously disabled location but it drains the battery. In one night goes from 99% to 70%, totally idle.
So my question is, is there anything else? I prefer 5.1 but its too slow... Could be any modified kernels out there to solve this? The same with 4.4, is there any kernel or something that helps with the battery life?
Thanks