Cyanogen battery life - Nexus One Q&A, Help & Troubleshooting

If possible could many of you give me tips on how to optimize my battery life, literally in about 2 minutes my phone is down to 98 percent and I would really like to change this... so any help would be appreciated.... thank you
Sent from my Nexus One using XDA App

what I did that made a HUGE difference is....
I turned off auto brightness and set it to 20-30% (it still looks and works great indoors or in normal light situations, but not outside)
When I am not playing with the phone (surfing etc) I turned off 3g and wifi, gps
obviously I turned these things back on when I wanted to do anything major.
I also installed juicedefender, no idea if it helps. heh
also, look this over.... has some decent tips
http://www.google.com/support/forum/p/android/thread?tid=574d6cee673440ab&hl=en

Thanks man, I will def try this stuff out, I hate that it does so quickly, I switches from froyo back to Cyanogen cause I wanted all the features, but in froyo the battery lasted a whole lot longer
Sent from my Nexus One using XDA App

Sometimes i find when wiping cache in Amon-Ra my battery gets ****. Flashbooting the Radio again fixes it.

Related

Suddenly bad battery life = battery gone bad?

Basically, a few weeks ago I flashed assonance 5.0 and my standby battery life was terrible. The battery would die by the time I got out of school which is around 7-8 hours of standby time.
So hoping to solve this problem. I flashed the captivate version of doc's rom and I have the exact same battery life. I have recalibrated the battery many times as well.
Sooo, do you think my battery has gone bad?
And if so, any good places where I could get a spare?
Sent from my SGH-I897 using XDA App
Many have posted eBay has some good deals.
I still suspect that many of these phones were shipped with crap batteries hence the differences with people using the same roms having much different battery life.
cappysw10 said:
Many have posted eBay has some good deals.
I still suspect that many of these phones were shipped with crap batteries hence the differences with people using the same roms having much different battery life.
Click to expand...
Click to collapse
Well the thing is that my battery life wasn't terrible before. Or not this bad at least :x
Sent from my SGH-I897 using XDA App
Have you at least tried reflashing to stock to see if the problem is with the roms or with your battery?
Not for an extended period... but the thing is I read through some of the rom threads. And if it was the rom people would be complaining about battery life, but no one is :/
In fact, it is quite the opposite...
Sent from.... "Waiting for Location"...
crazililazn said:
Sent from.... "Waiting for Location"...
Click to expand...
Click to collapse
That's awesome.
What, you don't like my phone sig?
Sent from a phone somewhere in the universe
crazililazn said:
Basically, a few weeks ago I flashed assonance 5.0 and my standby battery life was terrible. The battery would die by the time I got out of school which is around 7-8 hours of standby time.
So hoping to solve this problem. I flashed the captivate version of doc's rom and I have the exact same battery life. I have recalibrated the battery many times as well.
Sooo, do you think my battery has gone bad?
And if so, any good places where I could get a spare?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
kernel related or bad battery!!!!
Well i am using Glitterball's latest kernel before Firebird. Or the stock kernel that came with the Doc's Captivate Rom 7.0
Either way, there has been a huge drop in battery life and I do not think it is kernel related, because on the Assonance 5.0 rom, i was running Setiron's 1.4.7 kernel with the exact same problems with battery life :'(
This is highly dependent on how you have your settings on your phone.
1) Wi-Fi constantly looking for an active network connection? At least have it go to sleep when the phone goes on standby. I only turn mine on at home or otherwise need and have access to it. Otherwise its off.
2) GPS running all the time? Personally, I rarely ever need to use it, but it runs great when I do.
3) Display at recommended brightness or higher? Recommended or less is best as far as saving battery power. I like mine all the way down. Don't need/want it any brighter.
I even tend to use only darker wallpapers as bright and lighter colors pull more power on AMOLED screens. This makes a little bit of difference. How much I don't know, but I do know that it does. Sometimes the above settings like to change on you. It's a good idea to check 'em once in a while.
While it's usually always around 60% full when I go to bed, I still charge my cell every night.
I have found that the speedmod kernel is real good for conserving battery power. Not downing other kernels as they're all real good. Speedmod handles battery consumption better in my experience.
Have you installed any new software that might be accessing the network checking for updates/feeds, etc?
Cozmo1 said:
This is highly dependent on how you have your settings on your phone.
1) Wi-Fi constantly looking for an active network connection? At least have it go to sleep when the phone goes on standby. I only turn mine on at home or otherwise need and have access to it. Otherwise its off.
2) GPS running all the time? Personally, I rarely ever need to use it, but it runs great when I do.
3) Display at recommended brightness or higher? Recommended or less is best as far as saving battery power. I like mine all the way down. Don't need/want it any brighter.
I even tend to use only darker wallpapers as bright and lighter colors pull more power on AMOLED screens. This makes a little bit of difference. How much I don't know, but I do know that it does. Sometimes the above settings like to change on you. It's a good idea to check 'em once in a while.
While it's usually always around 60% full when I go to bed, I still charge my cell every night.
I have found that the speedmod kernel is real good for conserving battery power. Not downing other kernels as they're all real good. Speedmod handles battery consumption better in my experience.
Have you installed any new software that might be accessing the network checking for updates/feeds, etc?
Click to expand...
Click to collapse
1)I always had my Wifi sleep policy on never. So its not what is affecting the battery life
2) Never have GPS on unless i need it. Heck, when i need it, it never works.
3) nothing that i didnt have before.
Basically, I haven't changed anything to cause the decrease in battery life.
Your two biggest drains on battery are WiFi (especially when consistently seeking - any new access points where you leave it on standby all day?) and your display. Could it be your battery? Sure. Go exchange it at AT&T. They shouldn't have a problem exchanging it for you
Sent using XDA app on a modified Assonance 5.2 ROM
Cozmo1 said:
Your two biggest drains on battery are WiFi (especially when consistently seeking - any new access points where you leave it on standby all day?) and your display. Could it be your battery? Sure. Go exchange it at AT&T. They shouldn't have a problem exchanging it for you
Sent using XDA app on a modified Assonance 5.2 ROM
Click to expand...
Click to collapse
Well the thing is. I have never had this battery life with my Wifi settings left untouched. So yeah, i will probably get a new battery from AT&T tomorrow and report back if it was the battery or not :]
give this thread a quick read, its more based around 2.2.1 roms but you could find some good information
http://forum.xda-developers.com/showthread.php?t=884816

[Q] What to do Against battery drain?

I now have one week to the Nexus One bought secondhand. It suits me perfectly stand alone I have a little trouble with the battery life of the phone. Morning when the phone is 100% and I come out of school (14:30 hours) the battery is still around 20%. I find this a bit short. Ok, I'll use him at school (bit Internet, twitter refreshes every 9 minutes)
There is an automatic task killer, and that helps a bit but I think there are about 80% after 8 hours battery life is a bit much. Me internet is also constantly and I really like to keep.
The battery is probably not because I've got 2 batteries and they both give the same result.
Anyone have any idea what I can do?
I've been a bit inet searched but not really found anything. I did see somewhere a separate battery behind the phone, but I'm not waiting because that makes him a bit heavier and uglier.
10% per hour is pretty poor battery life. Are you running stock Android? 3rd party firmwares can give you much better battery life (the latest versions of CyanogenMod are using less than 1% per hour when fully idle).
But there are things you can check. Have you looked in Settings -> About phone -> Battery usage? If you are using Gingerbread and you look at the graph, if there is a solid line (or mostly solid) next to the "awake" portion, it means that your phone isn't properly entering its low powered state. Download spare parts from the market and check out partial wake usage under the battery history section of that app.
Please post your screen on time value from the battery menu so we can see how long your screen is on.
I would say to go and disable background data. Disabling this will definitely improve your battery life. Of course, you aren't going to get you twitter updates but aside from that, the battery life should improve.
Sent from my Nexus One using XDA Premium App
FLAC Vest said:
I would say to go and disable background data. Disabling this will definitely improve your battery life. Of course, you aren't going to get you twitter updates but aside from that, the battery life should improve.
Sent from my Nexus One using XDA Premium App
Click to expand...
Click to collapse
While it is true that battery life would improve if Background Data was disabled (or limited via a program like Juice Defender), it doesn't take into account his actual problem. Unless it is a ton of apps constantly downloading that is keeping his battery usage in the toilet, this will only yield a slight improvement. I believe the cause is is an app (or apps) that prevent his phone from entering the low powered sleep state.
I don't know what stock Android gets from completely idle use (haven't run it since July last year), but a basic CyanogenMod install would sip between 1-2% per hour with the latest stable and the latest nightlies, some are reporting 1% every 2-3 hours when the phone is left alone (due to a fix that lets the microphones go into a deep sleep state).
Twitter refreshing every 9 minutes can not be helping, that said I doubt that's your entire issue but reducing the refresh rate should help quite a bit.
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Estimated Prophet Hawk said:
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Click to expand...
Click to collapse
The battery app in my sig is the only one that reads the chip inside your battery to tell if it's legit or not, what the battery age is, etc. Needs root to work though.
Estimated Prophet Hawk said:
If you bought it used, it could be a bum battery. Not sure i know what apps work best to find out that info. Anybody?
Click to expand...
Click to collapse
You can also get Battery Left from the Marketplace and when it gets calibrated it gives you a time until death number and some other features.
Sent from my Nexus One using XDA Premium App
Start by getting rid of the task killer.
Sent from my Nexus One using XDA App

Automatic brightness speed boost?

So during my initial observations about the speed, stability and general snappiness of this phone, I had a hint that something about the sensors had an impact. More closely, I noticed whenever the display came on the automatic brightness would mildly stutter, and I noticed it a lot of the time otherwise. I turned it off and just left max brightness (extended battery) and left it at that. Although I tried minmemfree with various settings, it was to virtually no avail. Anyway, after disabling automatic brightness, low and behold, massive performance gain, especially in the touch screens snappiness. Even on wake the lock screen (flashed aosp) is near instant. Anyone wanna do some observations or critic on this? I wanna know how it affects others.
Sent from my VS910 4G using XDA App
I'm testing it now. Thanks for the tip.
Sent from my VS910 4G using XDA Premium App
Giving it a try myself. battery life already suks so brighter screen won't impact it all that much Thanks for the idea on this. I'll let you know if help my responsiveness.
Good write. I noticed that before and it irritated me as it seemed to be indecisive as to what it wanted to do. I to manually changed the brightness to right below full brightness and it hasn't given me any fits. My battery is also tons better. Helps I have an extended battery ")
This has indeed increased the speed of my system. I set my brightness at 50% at my post this morning at 6am . I'm currently at 54% battery at 2pm. I normally have to plug in by now even with juice defender. This tip has saved me a huge amount of battery.
Thanks networkgamer!
Sent from my VS910 4G using XDA
i always kinda felt the brightness system on this phone sucked. just wasn't sure if it was only mine. good post.
I'm glad to see everyone's benefitting from this :-D I'm also amazed lately with setting minimal brightness and increasing it sparingly when needed, and performance is great as well as battery. As of this post, the last hour between texting and Google maps used 3% battery (extended). I'm quite pleased haha. Thanks everyone.
Update: scratch that on battery, I was mildly mistaken. I had also turned off background data during that time. I thought something sounded off :S
Sent from my VS910 4G using XDA App
Brightness Level by CurveFish is a great app for those wishing to control brightness manually.. and it's free. Best part about it!

[Q] Batterylife issue, can't find any threads that help

There's not a single thread out there that has helped me with my damn battery life that I've been able to find. I'm sick of hearing, "did you search first?" Yes, I searched first. I didn't find anything that helped, that's why I made a new thread.
Anyways, I've tried apps, widgets, calibrating, deleting batterystats.bin, flashing different roms, kernels, modems, and even a new battery. Not a single thing has made my phone last through the day, and it's getting to the point where I'm about to flash back to stock, and forget about it. I need to be able to use it when I need it, not put it back in my pocket because I'm afraid of draining the battery. Honestly I'm not sure if the battery issue is rom related, so If that doesn't work, I may just get a different phone. I need to not have to charge my phone every 6 hours. Does anyone have any idea how to improve battery life on this freakin' thing? 6-7 hours on light usage is not enough. To put it in to perspective, I get 10-15% battery drain in STANDBY per hour. Serendipity 6.4 was a little better than 7, but not much. still within that 6-7 hour range. Is there anything else I can try? Anything at all? I went from 7 back to 6.4 because I thought Android System was draining my battery, but it didn't really do anything. I'm open to everything at this point. Voodoo, cult magic, anything.
Edit: reading through my message, I wanted to clarify that I am very grateful for your help, I hope I didn't imply otherwise.
Serendipity 6.4
Baseband version I9000UGJK4
Kernel Version 2.6.32.9
[email protected]#32 Tue Apr 12 11:43:22 SGT 2011
Need more info? I'd be happy to oblige. Thank you for your help. I know it gets annoying reading posts about this stuff but I really couldn't find anything helpful.
are you using exchange push?
Pirateghost said:
are you using exchange push?
Click to expand...
Click to collapse
Disclaimer: I'm a noob.
I don't know what that is heh
Have you tried Juicedefender? It's helped me immensely. Other than that, I could suggest getting an extended battery, if you're willing to cope with a lumpy cappy. I'm too noob to know how to fix this problem other than by using the brute force route, but it's worth a shot.
iamtheculprit2 said:
Disclaimer: I'm a noob.
I don't know what that is heh
Click to expand...
Click to collapse
sounds like you have an app that is chewing through your battery.
Pirateghost said:
sounds like you have an app that is chewing through your battery.
Click to expand...
Click to collapse
Yeah, with gingerbread roms I've heard it's fairly common for you to have high usage from android system. Check that?
Pirateghost said:
sounds like you have an app that is chewing through your battery.
Click to expand...
Click to collapse
Well, battery usage shows just about nothing... I was using 6.4 but after it did nothing for my battery life, I went back to 7. Now the android system thing is back but I'm getting the same battery life.
Here's what it shows under battery usage for today:
Display 29%
Android System 25%
Android OS 10%
Google Services 7%
Cell Standby 6%
Fancy Widget 4%
Handcent SMS 3%
Battery Graph 2%
Phone Idle 2%
JuiceDefender 2%
Dialer 1%
and that's it.
if you start seeing android system and android os that high, shut down, yank battery and let it sit for a few minutes. then replace and start up. should help with that and improve battery life.
studacris said:
if you start seeing android system and android os that high, shut down, yank battery and let it sit for a few minutes. then replace and start up. should help with that and improve battery life.
Click to expand...
Click to collapse
The problem is, I'd be doing that every 15 minutes. It boots up already taking up more than 10%. I just did exactly what you said, and it booted at 23% for system and 3% for os.
Get,cpuspy and check if it is going into deep sleep
Sent from my GT-I9000 using XDA App
keitaroguy said:
Get,cpuspy and check if it is going into deep sleep
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
wilco, will post results soon
keitaroguy said:
Get,cpuspy and check if it is going into deep sleep
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
It's reporting roughly 38% deep sleep. 21% in 1000mhz, 3% for 800, 2% for 400, 2% for 200, and 32% for 100.
those seem pretty normal. let me try to pick my brain some more and see what i can think up ill get back to you
keitaroguy said:
those seem pretty normal. let me try to pick my brain some more and see what i can think up ill get back to you
Click to expand...
Click to collapse
flashed cyanogenmod 7, and turned off mobile data and wifi and just left it on idle for like 2 hours after resetting the batterystats.bin and rebooting... i uninstalled juicedefender because it was actually USING batter... *shrug* and left it that way... well, I opened battery left and looked at it and saw that it would die at like 5am... well, i was disappointed... until I noticed it was 5am, 26 hours from now. That's notibly longer than any battery left stat I've seen since I started noting battery issues... So... Yeah. I think I'll stick with CM7 for a while hehe. After I get an idle benchmark, I'll start using it more. Thank you for your help.
do you live in a poor 3g area?
the problem could be that the phone is constantly looking for a good connection and cant find one, causing massive battery drain
Pirateghost said:
do you live in a poor 3g area?
the problem could be that the phone is constantly looking for a good connection and cant find one, causing massive battery drain
Click to expand...
Click to collapse
I was just going to say the same thing. If your phone is constantly trying to establish a connection, is alway searching, it's using up lots of juice. Same if you've got gps enable or wifi on. If it's looking, it's active and battery's being used.
Another thing you can try which helped me is to call art and get another free battery if your phone is still under warranty. The new battery I have seems to last almost twice as long as my old one. Of course make sure that the android os isn't eating the battery and mine last a while. Just a suggestion.
Sent from my GT-I9000 using XDA App

JuiceDefender?

Hi
Anyone using JuiceDefender with your galaxy note? is it worth it to buy this application?
Thanks
Sam
Save your money and skip it like anti virus apps. Many people recommended it so i bought it but i didn't like it at all. Experienced sluggish performance, connections not stable and sometimes connection doesn't even come back on unless i manually turn it back on. Also push mail doesn't work since juicedefender turns off data when not in use and checks every 15, 30 etc intervals (however u set it to check), i don't like that at all. I rather have 100% reliable fast performance connectivity than app that saves few % of battery. Just my 2cents
Sent from my GT-N7000 using Tapatalk 2
hmm i heard alot of people telling it saves alot of battery power.. jus wanted to know about the pro version..
Yeah it does save quite an amount. You can configure it to on off Wi-Fi necessarily or learn specific network when you are on the particular area of interest.
Sent from my GT-N7000 using XDA
sam20e said:
hmm i heard alot of people telling it saves alot of battery power.. jus wanted to know about the pro version..
Click to expand...
Click to collapse
My experience was with juicedefender ultimate.
Sent from my GT-N7000 using Tapatalk 2
zen0s said:
My experience was with juicedefender ultimate.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
How was it? any real battery improvement? any lagging issues?
Sam
My previous phone was pretty crappy and I had pretty crappy service, so I had to make sure I turned wifi, mobile data, etc. off when not using them. On my Note, I don't even bother turning them off because they drain so little. I don't think bothering with Juicedefender is worth the trouble.
Sent from my GT-N7000 using Tapatalk 2
Had an old Xperia Arc and Juice Defender worked quite well to last me the day.
Now with the Note, I tried with and without it and I find no significant difference actually.
Sent from my GT-N7000 using Xparent ICS Blue Tapatalk 2
I agree...
Being new to the android and rooting scene. I downloaded all the recommended apps and one by one uninstalled them including juicedefender...
Whats the point of it stopping data when screen is off? It defeats the purpose of push notifications.
Also I didn't notice any real extension of battery life either
I think it depends how you set up juice defender ultimate. For example on weekdays and working hours I use the "peek" option, letting jd enable connection every 5 minutes. Of course I have than battery drain. With different settings on different times and/or days (up to flight mode at night) I have significant less battery consumption.
It is also important when you use your phone a lot with the screen on, not to let jd automatically turn data on, because then there is obviously no difference at all, with or with out jd running.
There is no use of such apps, I have tried used many such apps from my S2 days and I never felt any difference in performance or battery life..just let it go. Ur using an Android device, and if u use it as a smartphone should be used, u will need to charge in at least once a day.
Sent from my GT-N7000 using XDA
AutoStarts is doing everything for me.
I had used JuiceDefender for a short spell when on GB. However, BetterBatteryStats soon showed what a battery hog JD was, so I made it disappear from my phone. Forever.
chasmodo said:
I had used JuiceDefender for a short spell when on GB. However, BetterBatteryStats soon showed what a battery hog JD was, so I made it disappear from my phone. And never again.
Click to expand...
Click to collapse
Exactly. Juice defender is crap. Its just for lazy people who can't maintain their settings on their own. and juice defender is obviously always running in the background, using up cpu power and draining battery on its own
Sent from my GT-N7000 using xda premium
sam20e said:
How was it? any real battery improvement? any lagging issues?
Sam
Click to expand...
Click to collapse
It does save little battery and drains at the same time. Huge down side of using this kind of app is no push and data connection is glitchy, sometimes takes awhile to connect back to network or wifi and slower performance. I can still use gnote all day with single charge so I don't find this kind of app useful to me at all. It's really not hard to turn off and on data or wifi on android unlike ios crap where you have to dig in settings.
Save few % battery vs slow performance, hit or miss connection.. I think answer is simple
Sent from my GT-N7000 using Tapatalk 2
I used to use it, ultimate version. But I quit using it and still have great battery because of my own setting changes. Juicedefender might be okay for people that don't use their phone much. But, if you are constantly on it, like I am, it is just a memory and battery hog.
Its not worth it, and possibly wastes battery juice rather than saving it.
I've been using it for several weeks now, when i go to sleep my usual percentage is from 70 to 85 % i always turn wifi off as i don't charge it at night. With the app running in the background, when i wake up it goes down to 45% when i do not use it as in its not running in the background I'm the morning the battery percentage only hours down by 5% max to 80%.
Pcworld made an intensiv3 comparison on the effect this apps do. The verdict: keep your money.
Zapped through server hops to XDA forums
battery saver is better
Don't bother. I used it on my HTC Flyer and I saw no difference. Migrated it to the SGN and I saw a huge difference after I uninstalled.
The features are limited and just stupid if you ask me. I believe the best battery app would regulste connectivity on demand (ie when I open Dolphin or refresh Facebook it would connect automatically and disconnect immediately afterwards).
If you are looking to extend battery life I suggest self regulating your connectivity (ie use the toggles) and screen brightness.
For even better battery life try and avoid apps that constantly run (eg ones that monitor other apos and processes).
You should get very decent life out of the SGN, and if you don't do what I did and get a spare battery. They are cheaper than you might think and they are an absolute life saver in emergencies or times with heavy usage.
Hope that helped
Sent from my GT-N7000 using XDA

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