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Been using the Vibrant for 2 whole days now on the Macnut R1 ROM. While looking through the Dev forum I noticed a lot of terms when talking about kernals (JPA,JPO, etc) Can someone shed some light on what these terms mean? When I look at the kernal in my phone info it says
The reason I'm wondering about this (aside from gaining knowledge) is because I like many am on a quest for better battery life. I see a lot of people in ROM threads saying they get better battery life with this kernal or that kernal and I'm not going to start flashing until I understand it all. Thanks in advance for the help!
Is XDA acting up or something? Your thread title is Duplicate Pictures but nothing is to do with pictures in this thread?
Also you said in your phone info it says.............
...........says what?
For battery saving and maximising up time, it seems to have a lot to do with the first 100% charge, although i heard and did 5 full charge/discharge cycles when mine was new and also to do with how you run your phone, i.e Live Wallpapers(they eat power) task killers(a waste of time as the system just fires them back up again anyway, so you end up killing, starting, killing, starting processes).
http://forum.xda-developers.com/showthread.php?t=824623
That's a thread on battery usage and there are some tips in there too
As for specific ROM battery usage, you'd be better reading in Android Development, go through the threads concerning any ROMs you like the sound of and look for people reporting their experiences. A good tip though is to avoid the ROMs that aim to increase processor speed as that's going to cost more battery and generate more heat
The title error was my fault. I was typing about one thing and thinking about another. -_- To complete that sentence my kernel says 2.6.32.9 [email protected] #45 which is apparently a JPA kernel.
I've been hanging on the dev forum and I did gain some understanding there but never found a clear explanation about the whole kernel thing.
Hello everyone,
I'm running some tests to see the battery consumption on my Galaxy S i9000. I'm using the gingerbread version of darkys ROM.
Firstly, what do you think of the battery life? In this specific test I used the phone in a very light way, made some messages/calls and read few mails.
Secondly, is it normal to have depressions in the battery chart that display less battery than it shows later? How is it computed? Isn't just some logic level of the voltage battery?
Lastly, in the case of buying another battery, is it worthless to be genuine?
Thanks a lot
I have same qestion like you, in the another thread....
http://forum.xda-developers.com/showpost.php?p=13862717&postcount=30
Regards
miro666 said:
I have same qestion like you, in the another thread....
http://forum.xda-developers.com/showpost.php?p=13862717&postcount=30
Regards
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Sorry! Obviously I didn't searched properly. Hope someone can clarify us
Is it a gingerbread issue?
Even big batteries will "recover" after heavy use so ur graph is quite normal.
Also be aware that if the battery calibration isnt xorrect then that will lead to weird graphs too. E.g. Losing 1% over 8hrs after flashing a new rom is most likely due to inaccurate battery calibration.
Sent from my GT-I9000 using XDA App
When I install a new rom the battery stats are always deleted? Or it depends?
I also having the same prob...batt consumptions are always the main concern when come to flashing a new rom...Darky's can only last me for 1day with heavy usage and recently flashed to MIUI which can only last for <8hours with the same usage...im not sure why this happen but I am trying with different kernels and see which is the best combination...
I just installed a new gingerbread ROM and guess what.. Using push, wi-fi all the time, gps, 1h youtube video, sms, video call... The battery never ends!! As I'm writing the battery is still 15%. It's amazing the gingerbread in terms of battery consumption. Obviously, something in the other ROM was not right! Guess I'll stick to this battery a little more time.
Btw, the battery stats are pretty normal, no depressions..
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
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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?
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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?
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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
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?
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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
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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.
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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.
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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.
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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
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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
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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
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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
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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
I know there's a battery discussion thread on here, but could we either get a sticky or a thread where the original post is updated with suggestions that work or tips to improve the battery life on the Nexus 4?
I don't think anyone would deny the current battery drain is abnormal so I would love to see a thread where I don't have to page through 400 posts to see if there's any update from Google as to a new Android build that improves battery life to tips such as the poster who removed several installed components on his Nexus and saw an immediate improvement.
I think this issue is important enough that having a single post/resource to keep up with the latest news and tips is justified.
Thoughts?