Database Users

Kernels on Froyo

So I get terrible battery life with .33.4 kernels (925 or 800) but got phenomenal battery on Ravens 800mv from 5/03. Are there any .33.3 kernels that will have the right drivers? How hard would it be to mod?
Thanks

Have you considered just sticking with the stock kernel? I'm getting phenomenal battery life with the stock Froyo kernel. Last I checked, i was at 46% after 28 hours unplugged (pretty heavy usage too - streaming music over 3G, several phone calls, tons of texting, youtube, web browsing)

r34p3rex said:
Have you considered just sticking with the stock kernel? I'm getting phenomenal battery life with the stock Froyo kernel. Last I checked, i was at 46% after 28 hours unplugged (pretty heavy usage too - streaming music over 3G, several phone calls, tons of texting, youtube, web browsing)
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My battery is getting raped on froyo almost to the point that I want to roll back to enoms 2.1

r34p3rex said:
Have you considered just sticking with the stock kernel? I'm getting phenomenal battery life with the stock Froyo kernel. Last I checked, i was at 46% after 28 hours unplugged (pretty heavy usage too - streaming music over 3G, several phone calls, tons of texting, youtube, web browsing)
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what do you do to get that much battery? my battery life isnt so good on froyo

I tried stock. Wasn't great but was better than avs.
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all kernels are going to depend on how much you play with it, and what you have running. if you don't have a load of widgets, background data, bluetooth, etc running, you should get decent battery life.
the more crap you run, the more energy it takes. common sense.

timothydonohue said:
all kernels are going to depend on how much you play with it, and what you have running. if you don't have a load of widgets, background data, bluetooth, etc running, you should get decent battery life.
the more crap you run, the more energy it takes. common sense.
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This!
And I am getting pretty good battery life off the stock Froyo kernel. Actually, I am only draining at 2.2% an hour, and have had my screen on for 1hr 57 minutes, and the device off the charger for 14 hours. I have also made about 45 minutes of phone calls, and let it download with the screen off a bit.

Personally I have similar battery life to what I was getting on cm with uv/oc kernal. It does appear like it might be a little worse but I need time to be sure. Regardless I have gained small but real improvements with battery life on both cm and enom using the custom kernals and I have no reason to expect another result with froyo. Since battery life isnt exactly something I would describe as gratuitous on the N1 I will be kernaling up as soon as one looks like it actually works without issues. Right now thats not exactly the situation as I read down in development. There are a few usb mounting issues going one way and no cam going the other. Hopefully there will be a more hashed out kernal soon as the guys get more time to play with it. So getting back to the begining you ought to have something to work with shortly.

So no one will ever get the old kernels working with Froyo, huh?

If only I could find one that worked well without the USB dismount issue or the wifi issue, everything I've tried has failed. IMO 2.6.34 so far has worked best for me but has the dismount issue. I've tried four so far and none of them work well. I did get pretty proficient at moving zip files from dropbox to the sd card though.

Battery life seems to be so across the board dependent on so many variables that it sometimes seems like it's not even worth trying to gauge other people's experiences. I've tried numerous ROM/Kernal/Usage/Setting combinations and have never gotten what I'd consider to be 'good' battery life. 2.2's no exception.
I just ended up buying this 2 battery and external charger pack off of eBay for 20 bucks and admitting defeat. Our superphones are luck of the draw it seems when it comes to battery life. I'd follow someone's set up to the letter and get nowhere near the battery life they claim to get. I can turn off syncing, keep the screen dim, run a kernel that's supposed to get great battery life, and still get around 3%-5% drain per hour on standby.
My morning routine has me use bluetooth stereo headphones for about 25 minutes on the metro while I look at a couple of webpages. From out the door fully charged I'll be down to around 82% when I get into the office. To me, that's laughably terrible, but it's the only life I've ever known with my Nexus One.

halorin said:
Battery life seems to be so across the board dependent on so many variables that it sometimes seems like it's not even worth trying to gauge other people's experiences. I've tried numerous ROM/Kernal/Usage/Setting combinations and have never gotten what I'd consider to be 'good' battery life. 2.2's no exception.
I just ended up buying this 2 battery and external charger pack off of eBay for 20 bucks and admitting defeat. Our superphones are luck of the draw it seems when it comes to battery life. I'd follow someone's set up to the letter and get nowhere near the battery life they claim to get. I can turn off syncing, keep the screen dim, run a kernel that's supposed to get great battery life, and still get around 3%-5% drain per hour on standby.
My morning routine has me use bluetooth stereo headphones for about 25 minutes on the metro while I look at a couple of webpages. From out the door fully charged I'll be down to around 82% when I get into the office. To me, that's laughably terrible, but it's the only life I've ever known with my Nexus One.
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It is terrible and I was in the same boat as you. I found the kernel from 4/29 800mv and 5/03 800mv to be the big winners for me. Any other kernels and my battery drops like dead weight.

hah2110 said:
It is terrible and I was in the same boat as you. I found the kernel from 4/29 800mv and 5/03 800mv to be the big winners for me. Any other kernels and my battery drops like dead weight.
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Hm.. You're talking about Intersect's I'm assuming? How do they fair with Froyo? I'll have to try to track those down.

halorin said:
Hm.. You're talking about Intersect's I'm assuming? How do they fair with Froyo? I'll have to try to track those down.
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Ya. The two kernels I mentioned are the ones that had me going 1.5-3 days depending on usage.

In right there with you guys. I unplugged at 8am and now its 10am and I'm at 78% this is how its always been.

I downloaded the 5/03 one and I'm trying that one out now, thanks. Maybe we'll see some improvement. It sucks to lose the ability to record video for a chance at battery life on par with what I'd get on a RAZR, but that's the world we live in.

halorin said:
I downloaded the 5/03 one and I'm trying that one out now, thanks. Maybe we'll see some improvement. It sucks to lose the ability to record video for a chance at battery life on par with what I'd get on a RAZR, but that's the world we live in.
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Your RAZR doesn't have a 1ghz processor and a 3+" screen either... I'm not happy either but I'm just sayin'...

THATTON said:
Your RAZR doesn't have a 1ghz processor and a 3+" screen either... I'm not happy either but I'm just sayin'...
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True enough, but phones in the same category perform much better than ours in terms of battery life, and they never made the claim to be 'superphones'. And AMOLEDs are designed to not use a lot of juice, but HTC somehow botched that idea, from my research.

halorin said:
True enough, but phones in the same category perform much better than ours in terms of battery life, and they never made the claim to be 'superphones'. And AMOLEDs are designed to not use a lot of juice, but HTC somehow botched that idea, from my research.
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I agree... Hopefully the "final" release of Froyo will have an updated kernel addressing the battery life. To be, it's not a big deal because I am always near a charger but it would be nice to be able to get through an ENTIRE day of heavy usage without worrying about the battery dying.

I havent had a smartphone recently that could didn't need to be charged every night. I would love better battery life as I jmake it through weaker usage days at about 40% moderate usage at about 25% and with heavy use I have to find a way to get plugged in to get through. Still, reading how other similar phones (large screen 1 ghz etc) are doing leads me to believe that the N1 is roughly comparable. I'm not sure how you can compare a modern smartphone to a far less power hungry (and capable) feature phone that a person almost certainly did less with over the course of a day?

problem: Dialer using 82% of battery power?

What the heck?
I noticed recently that I have battery drain, and now I noticed this in the battery stats window...anyone have a clue how this comes about? (I am using stock 2.1)

ronnienyc said:
What the heck?
I noticed recently that I have battery drain, and now I noticed this in the battery stats window...anyone have a clue how this comes about? (I am using stock 2.1)
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I have to ask.... Why the F are you still doing on 2.1? REALLY? 2.2 improves battery life 2-5x faster application speeds and much-much more!
Sorry for being blunt but common! It's FROYO!!!

I have another Evo which i put 2.2 on and I found differences in terms of battery life and speed to be marginal at best.
Also there are more posts about people losing functionality with the custom ROMs than I can count...
I had been getting around 24 hrs of use between charges until this...

only thing lost moving to froyo is 8MP cam down to 3MP cam with the custom kernel, still takes good pictures though.

ronnienyc said:
I have another Evo which i put 2.2 on and I found differences in terms of battery life and speed to be marginal at best.
Also there are more posts about people losing functionality with the custom ROMs than I can count...
I had been getting around 24 hrs of use between charges until this...
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Mine came stock with 2.1, after loaded 2.2 I noticed better application execution times out of the gate. Battery at least a full 8-10 hours of use hard core use (non-4G) 4G coverage here is not that that great so it kills the battery fast. I then opted for the 3500mah batter for the evo and no longer worry about the battery but every 3 days or so...

Battery life on 2.6.32.15 kernel looking good...

I have an EVO that is completetly stock latest SW-3.29.651.5 and kernel-2.6.32.15 and the battery life stock is looking real good. I have not done any battery saving techniques such as turn off wifi and background syncs. This is an average daily use for me...could easily get 2 full days with some battery saving. Personally I am considering just staying stock on this EVO. Side by Side comparisons with my other rooted one has going either way a good deal...

I agree. With this latest update and kernel, my battery life is about 1 day now, or 12 hours with a lot of usage, which is what a lot of evo users have been getting from the start.
I'm also running fresh 3.3 and the newest htc kernel, and have stopped using all task kills, startup killers, cpu adjusters, ect.

I seem to be getting about 4-8 hours of use out of the phone. I am not really concerned with standby time.
So during the week, I will easily get 20 hours of out it before it complains, weekends maybe longer as I am not using it as much.

That's really impressive! I have the same kernel and build number, but my battery life doesn't seem as good.
Just curious, are you on wifi most of the time? And do you keep GPS on and always-on mobile data?

How's the battery life when using talk time? I'm looking at picking an evo up but there are days I use a solid 2 hours a day talking.

imekul said:
That's really impressive! I have the same kernel and build number, but my battery life doesn't seem as good.
Just curious, are you on wifi most of the time? And do you keep GPS on and always-on mobile data?
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My wifi stays on as does gps ect. The only thing I do when I do a fresh reset is first off turn off vibrate and any hepatic feedback. That is just a personal thing for me and is the only battery saving thing I do. I did however do a full battery charge thing...you know where you have it plugged in power on and full charge. Then unplug and turn off...re-plug and full charge/green light. This may or may not be why the battery life is so good but I am liking it for sure.

Anyone else getting terrible battery life on any Froyo Rom?

Is it just me? I really can't believe it is. I mean there isn't even 3G where I live so my phone is set to 2G permanently, yet I can't find a Froyo ROM to last even a day. Even with all my tweaks and minimalistic settings, no luck at all.
What has been your experience on any of the Froyo roms?

Anderdroids AOSPish is the first and only froyo rom I've flashed. I was running mostly either stock or bionix stuff prior to this. I'm now getting, by far, the best battery life I've experienced since buying my phone a few months back.
Maybe give it a try if you haven't already.

Same...with JI6 I get better battery life. Everyone else it seems like they get better battery life with 2.2

I am getting GREAT life with onyx r3.1. Screen shots attached. I went over 24 hours and still had 50% battery left. That was with light usage. I included display time to show that there was an hour and 42 minutes of "usage" and also included a systempanel shot showing that in standby, it has very little power consumption.

compared with my own usage, I get better life with Froyo. Mainly because of the google cloud for push notification for IM apps. before my IM app would drain the battery due to pulling.

gregc2009 said:
I am getting GREAT life with onyx r3.1. Screen shots attached. I went over 24 hours and still had 50% battery left. That was with light usage. I included display time to show that there was an hour and 42 minutes of "usage" and also included a systempanel shot showing that in standby, it has very little power consumption.
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where did u get 3.1 from? only v3 is released ,,

gregc2009 said:
I am getting GREAT life with onyx r3.1. Screen shots attached. I went over 24 hours and still had 50% battery left. That was with light usage. I included display time to show that there was an hour and 42 minutes of "usage" and also included a systempanel shot showing that in standby, it has very little power consumption.
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Very nice. I couldn't get more than 16 hours on onyx r3. Are you using 3 or 3.1?

i have gotten excellent battery life on all roms except macnut 12.

I'm also getting incredible battery life. Are you reconditioning?

sroach23 said:
i have gotten excellent battery life on all roms except macnut 12.
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how much of a difference are you getting?? i was getting amazing battery life with r10 and also with the very first leaked 2.2 from eugene. i just flashed r12 and just finished reconditioning my batters... just wondering what to expect.

I am using Onyx 3.1 from TWs site.
After reading the write up of how the battery works, I don't do any kind of conditioning and my battery has just gotten better.
Sent from my SGH-T959 using XDA App

When I ran 2.1 I had about 10 hours of life. Running Axura gives me about 12.
Sexed by Axura

axura is good when it comes to battery for me. i'm at 91% for 2 hours with 40 minutes of usage.
Sent from my SGH-T959 using XDA App

I think I am doing ok here....
14 hours with 2.5 hours of web browsing and 40 min phones calls, 2 hours 20 min on wifi

Extended battery for the vibrant
Use this and your battery life more than doubles. It is very comfortable, rubberized coating, and the battery rocks. The door is quite thin considering and fits comfortably in the hand. They are also going to make custom clear protectors for the entire phone and have them up for sale within 2 weeks.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130448289815#ht_999wt_1139

sroach23 said:
i have gotten excellent battery life on all roms except macnut 12.
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Same here. Flashed 12 yesterday and love it for everything EXCEPT the awful battery life.
Is there any other Froyo ROM that does not show text messages in the call log, because that's the biggest reason I am using Macnut 12 right now... ?

Ive been using the Odin Froy for almost a week and i get better battery life that stock JI6. I have yet to condition the battery so Im sure Ill get better after I do that. Ive had good luck so far with this.

it really does depend on the kernel you're using. I know TW for a lot of the newest releases uses a modified I9000 kernel, which causes battery drain, relatively speaking.
Check This out:
Yes, that is hr:mm. and my phone had been running for ~5 hours with only that much drop.

Shrivel said:
Same here. Flashed 12 yesterday and love it for everything EXCEPT the awful battery life.
Is there any other Froyo ROM that does not show text messages in the call log, because that's the biggest reason I am using Macnut 12 right now... ?
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Eugene's Macnut R11 used the stock JK2 kernel and had amazing battery life. I just flashed back to it from R12 today. Right now the battery usage app is telling my I have 33 hours left as opposed to the 12-13 I it displayed with R12. There's something about the I9000 kernels that drains the battery while in sleep mode that nobody's been able to figure out yet.

geoffcorey said:
it really does depend on the kernel you're using. I know TW for a lot of the newest releases uses a modified I9000 kernel, which causes battery drain, relatively speaking.
Check This out:
Yes, that is hr:mm. and my phone had been running for ~5 hours with only that much drop.
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Which rom are you running. Which kernal? I've been getting terrible battery life with v3.1 tw obsidian, by far the worst of all the roms I've tried. I'm barely getting 12-16 hours with light use. I was running fusion and getting excellent battery life.

Synergy battery life

I flashed myns synergy rom a couple of weeks ago and have been getting decent battery life. Today my battery life is blowing me away. Going on 11 1/2 hours since being unplugged with my normal usage and still have 22% battery left. Not heavy use by any means but moderate at least. I have never seen this kind of battery life on any other rom I have flashed. Any other synergy users seeing good battery life?
Sent from my PC36100 using XDA App

Yeah, I am a pretty light user but I can get two full days
Sent while standing in line at chipotle

I got decent battery life on Synergy, but its nothing compared to my battery life on my current CM7.1 setup. 20 hours of moderate use and I still have 48% on the stock battery.
Sent from my PC36100 using XDA App

Im at 54% now took it off the charger at 1030 am i set words with friends to not update and it seemed to help.
Sent from my PC36100 using XDA App

Neitmrh15 said:
Im at 54% now took it off the charger at 1030 am i set words with friends to not update and it seemed to help.
Sent from my PC36100 using XDA App
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There's a great battery guide in the Q/A section, all kinds of tricks. Might find the guide to kernels there too, another way to drastically improve battery life. The new GB kernel sprint released is garbage, try netarcy-toast "brand" kernels

No where near CM7's battery life, but still very much a daily driver. I usually plugged up at around 40% battery after at least 12 hours usage.

Pretty decent for a Sense rom.

I've had my Evo unplugged for the last 2 days and still sitting at 43%. This is with sending about 60 texts, facebooked, got on frostwire for a bit, made like 12 calls, played a couple of rounds of Angry Birds and been on wifi about 95 percent of the time. Never has this happened with other roms. And I have tried a lot. Only thing disabled was 4G(none in my area)

Unplugged Sunday at about 2pm, it's now Tues at noon, I'm still at 49%.
Light to moderate usage since then, about 200 texts, a few short phone calls, and about two hours combined of facebook and twitter. VERY good life for 2 days worth of usage.

I just recently switched over from CM7 to Synergy RC1... I loved when I went away from Sense to AOSP and was reluctant to switch back. But very pleased and battery life I can confirm is excellent for me as well. My only gripe now is that I'm getting the darn unread email count showing up on my home screen icons even though there is no unread emails. I have found online that it is a known issue and mostly seen in 2.3.3? Can anyone confirm that?
Thanks!

I have tried several sense 2.1+3.0 roms, Virus Kingdom revolution, and mik g I have never been more happy than once I began using Synergy. Heck I even devoted a whole post on Google+ about it. Very stable and my battery is ridiculous. I took my phone off the charger at 6:30 am cdt its now 12:15 pm and I'm at 78%. That's with heavy usage. Great job devs.
Sent from my PC36100 using XDA Premium App

Seems like people are getting better battery life now that its been out for awhile, aging like a fine wine

Neitmrh15 said:
Seems like people are getting better battery life now that its been out for awhile, aging like a fine wine
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When I first flashed I was goeeting okay battery life, the past few days has blown me away. I am used to seeing my battery drop like mad...but it does not do that anymore. I did nothing that I have not done on other ROMs, it just seems to work better after being on the phone a couple of weeks. This will be my ROM for quite some time now!

I'm really trying to get to the bottom of this display usage issue. My display usage stays extremely high compared to everything else. The more I use the phone, the higher it goes. Say if I use the phone a lot, it will be around 90%. If I barely touch the phone, it will go down to 50% but it's still a LOT higher than everything else. And it drains the hell out of my battery. If I barely use it I can get maybe 12 hours at most. If I do use it, I'll be lucky to get 7-8 hours.
It starting happening to me on MikFroyo but it didn't use to do it before. And now I'm noticing the same thing with Synergy. This is driving me nuts because it's keeping me from using my two favorite roms as a daily. I'll post three pictures. One is what my battery life/usage used to look like, one on MikFroyo 4.62, and one on Synergy RC1. I would really appreciate any insight to this.
Edit: It's only these two roms (that I've tried at least) that gives me this issue, and I think MikG if I can remember correctly. CM, Salvage-Mod, and a few other older Sense roms do not cause it.

This is with MikG 1.5, with my usual fairly heavy use.
AMAZING battery life, and 100% stable in my experience.
I have tried many, many ROMs and this one beats all.

no idea how people get battery life like that. i'm lucky to make it a 14 hours~ with similar usage

spanglmd said:
no idea how people get battery life like that. i'm lucky to make it a 14 hours~ with similar usage
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I was getting maybe 14-16 hours, then I removed the check mark from Always On Data, and the battery life doubled. (again, this is with MikG only.)

battery
ncfastls1 said:
I'm really trying to get to the bottom of this display usage issue. My display usage stays extremely high compared to everything else. The more I use the phone, the higher it goes. Say if I use the phone a lot, it will be around 90%. If I barely touch the phone, it will go down to 50% but it's still a LOT higher than everything else. And it drains the hell out of my battery. If I barely use it I can get maybe 12 hours at most. If I do use it, I'll be lucky to get 7-8 hours.
It starting happening to me on MikFroyo but it didn't use to do it before. And now I'm noticing the same thing with Synergy. This is driving me nuts because it's keeping me from using my two favorite roms as a daily. I'll post three pictures. One is what my battery life/usage used to look like, one on MikFroyo 4.62, and one on Synergy RC1. I would really appreciate any insight to this.
Edit: It's only these two roms (that I've tried at least) that gives me this issue, and I think MikG if I can remember correctly. CM, Salvage-Mod, and a few other older Sense roms do not cause it.
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let me start by saying that i used to think the same way your thinking untill one of the guys on the synergy post broke it down for me. it's simple, you keep thinking that the display% is an issue but it's only a number and it doesnt represent your actual battery drain. if you hardly use your phone, lets say u make a couple of calls, check some mail and browse the web. well the percentage is correct, your display was on longer than any other application. so it's going to be higher no question. the real question is are you getting good battery life or not? i'm on synergy RLC1 and after some suggestions that i upgrade my PRL, PRi, and wimax. which i did, now im getting great battery life even though my display percentage is still the highest application.

treedog5 said:
let me start by saying that i used to think the same way your thinking untill one of the guys on the synergy post broke it down for me. it's simple, you keep thinking that the display% is an issue but it's only a number and it doesnt represent your actual battery drain. if you hardly use your phone, lets say u make a couple of calls, check some mail and browse the web. well the percentage is correct, your display was on longer than any other application. so it's going to be higher no question. the real question is are you getting good battery life or not? i'm on synergy RLC1 and after some suggestions that i upgrade my PRL, PRi, and wimax. which i did, now im getting great battery life even though my display percentage is still the highest application.
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That is only the case if it's maybe a little higher than the rest of the things. It's a percentage of what has used the battery. When the display is at 90% and everything else is at 3% or less, there is a problem. And no, I am getting HORRIBLE battery life. Like I explained, on ROMs that don't have the extremely high display usage I can get 20-30 hours on one charge. The way the battery drains when I'm using it is extremely noticeable. The picture I posted that has been on for 14 hours with 48% left, that's how my battery usage should look. Granted I hadn't used the phone as much as normal that day, it still would be around the range of everything else.

battery
ncfastls1 said:
That is only the case if it's maybe a little higher than the rest of the things. It's a percentage of what has used the battery. When the display is at 90% and everything else is at 3% or less, there is a problem. And no, I am getting HORRIBLE battery life. Like I explained, on ROMs that don't have the extremely high display usage I can get 20-30 hours on one charge. The way the battery drains when I'm using it is extremely noticeable. The picture I posted that has been on for 14 hours with 48% left, that's how my battery usage should look. Granted I hadn't used the phone as much as normal that day, it still would be around the range of everything else.
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ok, may i suggest that you upgrade all PRI, PRL, wimax etc.. you know all that stuff and give it 2 days to see if that helps. it made a major difference for me..