Database Users

Battery massive improvement after update?

I posted this on another forum... and got some positive feedback.
The update just miraculously increased my battery life tenfold!
I am 7 hours 12 minutes in and I am at 80% (using the battery indicator provided in settings, not by battery widget). I unrooted to install the update (yet it feels like I still have Herver's ROM). Brightness at 50%.
I didn't use the phone that much today (I had class), but I used it inbetween breaks and whatnot. I guess pretty light usage.
I think the update messed with the radio/wifi performance.
What about you guys?
Edit: I know people have gotten 20+ hours with ROMS, but this is without one.
Hopefully ROMS increase the battery life even more.

patelkedar91 said:
I posted this on another forum... and got some positive feedback.
The update just miraculously increased my battery life tenfold!
I am 7 hours 12 minutes in and I am at 80% (using the battery indicator provided in settings, not by battery widget). I unrooted to install the update (yet it feels like I still have Herver's ROM). Brightness at 50%.
I didn't use the phone that much today (I had class), but I used it inbetween breaks and whatnot. I guess pretty light usage.
I think the update messed with the radio/wifi performance.
What about you guys?
Edit: I know people have gotten 20+ hours with ROMS, but this is without one.
Hopefully ROMS increase the battery life even more.
Click to expand...
Click to collapse
Hi patelkedar,
I can't speak for everyone, but according to myself and other users that have responded to my post battery life improvement has been absolutely astounding as of this update.

Blah. Sorry for double thread.
Search didn't go so well I guess.
Anyway, seems like everyone has seen major improvement.

Totally agree. My battery life has improved vastly. I came from fresh 0.3 and EvolutionX. I had excellent battery life with both of those roms too. But I unrooted to give htc a shot at stock again and I am happy. Phone has been off charger since 7:30am and it's now 3:05pm, with moderate usage and on wifi i'm at 78%. I don't know what I would do without my EVO. I love this damn device.

My battery life is phenomenal with the stock update. I was one of the ones who took the plunge and lost the ability to root for the time being but its performing so well I really don't care. They made everything run better and the battery was just a bonus.

unevoked not working after 1.4xxx update
I uninstalled the superpermissions and unrevoked before updating. now it will not root obviously. tried to install setcpu and various other programs but will not work. this sucks.. i see no difference in battery life or speed....a lot of people think an update is a good thing sometimes, but it is not. HTC should just release froyo 2.2

Pretty much if you have alot of Facebook friends the battery life savings will be huge with this update, also if you use a Flickr account battery savings will be huge, it seems they fixed the issue with Flickr causing 100% awake time as well but didn't mention it...crossing my fingers anyway, so far haven't run into the issue after resetting up my Flickr Account.
P.S. The update seems very much worth losing root for now as it seems to have fixed many things not metnioned and some functions are way faster now, going to manage applications loads in 2-3 seconds now versus 10-20 before etc... There seem to be alot of fixes not mentioned.

You guys mind posting your settings?
I'm at 9 hours and 40 minutes with exactly 50% battery remaining, but I haven't been using the phone like crazy. Some light web use and decent amount of texting all throughout the day. This is not an improvement from the pre-update era. Pretty much the same

jpimpballa said:
I uninstalled the superpermissions and unrevoked before updating. now it will not root obviously. tried to install setcpu and various other programs but will not work. this sucks.. i see no difference in battery life or speed....a lot of people think an update is a good thing sometimes, but it is not. HTC should just release froyo 2.2
Click to expand...
Click to collapse
HTC has released it already. It's Sprint now that has to smooth it over and make sure that it is compatible with their stock applications before releasing it to the masses.

akarol said:
HTC has released it already. It's Sprint now that has to smooth it over and make sure that it is compatible with their stock applications before releasing it to the masses.
Click to expand...
Click to collapse
Correction: Google has released it already. HTC + Sprint need to smooth it over and make sure that it is compatible with their stock applications before releasing it to the masses.

Phone also all around seems smoother in the sense UI especially. I'm enjoying my EVO again and actually using it as a cell phone now instead of a super-rapid-fire-rom-flashing addiction-device. Sometimes I forget that my cell phone is a cell phone and not a netbook (yet) lol. Cheers to HTC for the update!

LearnIIBurn said:
Phone also all around seems smoother in the sense UI especially. I'm enjoying my EVO again and actually using it as a cell phone now instead of a super-rapid-fire-rom-flashing addiction-device. Sometimes I forget that my cell phone is a cell phone and not a netbook (yet) lol. Cheers to HTC for the update!
Click to expand...
Click to collapse
Ditto. I don't miss the custom ROMs, honestly. I haven't had a single FC since this ROM launched and the device feels much smoother and faster.

[Q] Need a ROM with a low battery consumption

Heya, I'm going to visit the gamescom 2010 in Cologne in a few weeks. And right now, my Dream is draining his battery faster than you could say uhhm... a really short word. And Cologne is not really close, that means atleast 8 hours of listening to music etc.
So I'm searching for a Eclair ROM with a nice, long battery life. I already looked into the ROM bible, but without real user experiences it don't really persuades me. Or does someone have some advices how to save as much battery life as possible?

Alex2221 said:
Heya, I'm going to visit the gamescom 2010 in Cologne in a few weeks. And right now, my Dream is draining his battery faster than you could say uhhm... a really short word. And Cologne is not really close, that means atleast 8 hours of listening to music etc.
So I'm searching for a Eclair ROM with a nice, long battery life. I already looked into the ROM bible, but without real user experiences it don't really persuades me. Or does someone have some advices how to save as much battery life as possible?
Click to expand...
Click to collapse
Hey Alex, I got usually around 10 hours of battery life using SpeedTeam Eclair, now that wasnt playing music for 8 hours straight. All newer Roms on the G1, Eclair (2.1) and Froyo (2.2) drain battery life and will never last as long as a Donut (1.6) Rom did. I am current using SuperFast which is a Donut Rom and yesterday I got 17 hours before I plugged it in to fully charge and I still had 40% of battery life to go. So I would say if your looking for great battery life go back to a Donut rom.
If you want a rom to show off then an eclair or froyo rom is where its at but dont expect the battery to last over 10 hours of moderate use. Now you could try Speedteam and while traveling there Turn on Airplane mode (which of course shuts all cell/data Off) and you should get a better battery life. But then again you wont beable to talk to anybody or receive txt messages. Hope this helps.
Sorry about the Rom Bible the user experiences part has been lacking but I just dont have the time lately to flash all the roms and test them out, I have requested other users to give me there experiences and I would place it in the post. But yet again hope this helps.

Royalknight6190 said:
Hey Alex, I got usually around 10 hours of battery life using SpeedTeam Eclair, now that wasnt playing music for 8 hours straight. All newer Roms on the G1, Eclair (2.1) and Froyo (2.2) drain battery life and will never last as long as a Donut (1.6) Rom did. I am current using SuperFast which is a Donut Rom and yesterday I got 17 hours before I plugged it in to fully charge and I still had 40% of battery life to go. So I would say if your looking for great battery life go back to a Donut rom.
If you want a rom to show off then an eclair or froyo rom is where its at but dont expect the battery to last over 10 hours of moderate use. Now you could try Speedteam and while traveling there Turn on Airplane mode (which of course shuts all cell/data Off) and you should get a better battery life. But then again you wont beable to talk to anybody or receive txt messages. Hope this helps.
Sorry about the Rom Bible the user experiences part has been lacking but I just dont have the time lately to flash all the roms and test them out, I have requested other users to give me there experiences and I would place it in the post. But yet again hope this helps.
Click to expand...
Click to collapse
Thanks for the reply, I'm gonna give SuperFast a try and with airplane mode and lowest screen brightness during the train ride, it could work.
Oh and ty for the quick answer D:

Use an app called "setcpu" ($2 on market, free from the G1 apps section). Use it and set the max to 128 or 245. Under 128, you might get music to skip. On eclair I seem to be stable at the lower frequencies so I use 128 to listen to music. If 128 isn't good for you, try 245. This will make your battery last aproximately 50% or more longer.
Also, try amazon.com. I'd be surprised if you have to spend more the $6 shipped to your house for an OEM battery.

$10 for an extended battery.
Adds about 1/4" to your device, but its well worth it.
http://cgi.ebay.com/2300mAh-Extende...ewItem&pt=PDA_Accessories&hash=item2a0345cc94

I already use SetCPU (But as far as I remember it is free?) and while the screen is off, it underclocks it to 128-245 it really saves some battery, but it still isn't enough I think.
I also already thought about buying a larger battery, but my G1 already seems pretty large to me, and just barely fits into my pockets.

I finally stopped trying to get Eclair and Froyo to have a decent battery life and went back to SuperD just before I went on vacation a while back. I couldn't be happier - you forget how fast a G1 can be after you get used to Eclair.

Alex2221 said:
I already use SetCPU (But as far as I remember it is free?) and while the screen is off, it underclocks it to 128-245 it really saves some battery, but it still isn't enough I think.
I also already thought about buying a larger battery, but my G1 already seems pretty large to me, and just barely fits into my pockets.
Click to expand...
Click to collapse
Turn off profile's on set cpu and underclock it while the screen is off. You're going for maximum battery life, not performance.

Appropriate steps to a better battery life?

Hi everyone! Long time XDA reader and I've had my Evo rooted for months. Now I have been dealing with its "poor" battery life for a long time and not really thinking much of it till I finally decided that rooting has to have some advantage for this. I average about 6-7 hours then my phone dies...
After doing a little research I read some people getting 15-20+ hours out of their phone with heavy use...I was amazed...I decided to try to get better battery life on my phone and this is what I am trying right now. I just want to make sure I am on the right path with it and that I am not doing anything seriously wrong.
-I am trying Cynogens ROMs - CM7 I tried for a day and that gave me about 7 hours of battery life...still no real improvments. I am trying Cynogens 7 Nightly 12 now to see if that works.
-I am trying different Kernels. Been getting them on the HTC EVO kernels page. Right now I am using stock HTC one.
-Should I try different radios too? Where can I go to find different radios if so.
-What order should I be installing radios/kernels/roms?
-I have donated and am using Set CPU now also and have the screen off cpu power really low.
-Am I on the right path trying out different ROMS/ Kernels/ Radios to optimize my battery life? Is there anything else I can be trying?

turn off gps when not need
data when not needed

Check out my sig for my full walk-through on battery life (I don't want to repost it here lol).
But you seem to be doing everything okay. My only hesitation would be to say make sure you're giving Kernels adequate time to settle into your phone. Unless something is HORRIBLY wrong with them, you shouldn't switch/judge them until at least two days in
Radios should not make a difference in your battery life.
Also, be aware that CM is NOT optimized for battery life. There are a couple of ROMs that will give you unheard of battery life if you would like though (Myn's comes to mind). It's a trade off though. CM is hands down the fastest ROM you'll run...but in my experiences is in the lower tier of battery.
Hope that helps

also when the newest version of ultimate Juice is released that will help you i have the closed beta and im glad to have it back and running

@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Another thing..when you install a ROM does it automatically install a Kernel too? Or are those 2 separate?

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Click to expand...
Click to collapse
with UJ i get 18-19 or more on a full charge with phone being used 80% of the day .
with out i was changing out batteries after 9 hours or so ( i normally work 12 - 13 hours a day )
yes its in the market but gingerbread support is not public yet ( closed beta )
also check in spareparts for any wakelocks you might be having
for a sense rom myns are great so are Ava's,caulkins and Miks

Hmm Thanks Cheesy. I'll take a look at that.
So if I flash a ROM that is not Gingerbread...I can use that app. But Gingerbread is anything 2.0+ right?
I'll try out those ROMs too and different kernels...test them for 2-3 days.
Whats wake lock? I'll download that spare parts thing and see if I can figure it out.

I just recently started seeing great battery life with my rooted Evo. I flashed MikFroYo 4.5 with a stock htc kernal.
I use juice defender and that's it. I've been getting just over a day per charge for the past two weeks.
I wouldn't say that's with heavy use as a good 6-7 hours of that time are accounted for when I'm asleep. I do about 30-50 texts a day. About 10 minutes of calls and I check facebook and twitter all the time. My data use varies depending on the day but I do use youtube and pandora pretty regularly as well.

just make sure background data is disabled. accounts and sync>background data. I have no issues with battery life on stock sprint evo.
of course it is a 3500mah battery

My wife and I just bought two EVOs a week and a half ago, and I quickly became interested in improving the battery life on the phone. My first attempts were rooting my phone and installing OverClock Widget, and using minimal settings when the screen was off. With that change alone, and comparing to my wife's phone from a full overnight charge, my phone was able to make it 14-16 hours with moderate use. My wife's phone would die after 8-9 hours of moderate use. Granted, there's obviously going to be a difference between my moderate use and hers, but even testing with screens off and letting them idle for an hour, there was a definitive difference in battery consumption between our phones.
I went one step further and installed CM7 Nightly 12 just yesterday... already I'm noticing even further improvement in battery life, but the majority of those savings are when my phone is idle. Overnight, my battery only drained 7%, whereas my wife's drained much more than that. My battery has been at 39% for the past 3 hours at idle, so I imagine that with my version of "standard usage", I would be able to possibly get higher than 16 hours of usage per charge (can't wait until I do the full calculation testing tomorrow!).
Here are some observations I've had in all of this:
1) Check out Greenfieldan's list of battery tips and tricks. Some of these are very simple and actually had a significant impact on both my phone and my wife's phone (especially shutting off data and disabling auto-synch). I'm new to the forums, but this is one of the first things I checked out. This is a great place to start.
2) Battery consumption is obviously affected by how frequently you use your phone, and what you are doing with it. I say this because it's easy to read threads about what techniques work and see mixed results, but I don't see alot of people really admitting how much or how little they use their phones. I'd say I'm a more conservative user of my phone, but I still have my texting, browsing, and even occasional streaming, GPS using and general fiddling. So in other words, your mileage may vary with any given technique.
3) This is my personal opinion, but think about when you ideally want to be charging your phone, and try and anticipate usage around it. It sounds strange, but I've come to my own conclusion that an optimal charge for me (not necessarily possible, but optimal) will give either 12 or 36 hours of usage time. This is because I like to charge my phone overnight, so if I get 18 hours of battery life, I'm unfortunately wasting 4-6 of them. If I get 24 hours of usage, then that means that by the next morning, I need to charge again. So I plan ahead and charge at night, and use through the day. This was particularly useful when I first started with the phone and was getting a max of 8-9 hours. I'd know when to unplug, and how well it would get me through the day.
Anyway, at this point I'm rambling, but since it is still very fresh in my mind I wanted to share my thoughts. Hopefully this helps.
(Btw, apologies for the huge post!!)

syypher said:
So if I flash a ROM that is not Gingerbread...I can use that app. But Gingerbread is anything 2.0+ right?
Click to expand...
Click to collapse
Gingerbread is Android v2.3. Froyo is v2.2.

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time >_<
@Green: Really? Myns is good on battery life? I tried that before and was dieing with battery. (Was getting my average 6-7 hours) I had that one for about 2 weeks. Do you think it was my Kernels that were bad then? Isn't Myns warm 2 pt sense based? The one I used was...I had thought sense UI drained battery more than CM for example that is just plain stock android gingerbread?
@Cheesy again: Ultimate Juice? Is that an app on the mkt place? How much did it help you? I'm willing to donate and pay for apps to support the devs if they really make a noticeable difference.
Another thing..when you install a ROM does it automatically install a Kernel too? Or are those 2 separate?
Click to expand...
Click to collapse
Sorry it took me so long to reply.
Anyhow, from my testing on mine and three other phones Myn's Warm TwoPointTwo has the best battery life (although some of them were right on par with it). Specifically his RLS 3 and RLS 4. Did you try Warm Z? Because the battery life on that ROM is no where NEAR his 2.2 ROM.
Also, Sense CAN be a major drain on battery. If you make it so it's not syncing all the time/doing the random shenanigans it defaults to I'd argue it's better than AOSP (based on my experience with both).
Yes, your Kernel might have been an issue. Do you know which one you were using? HAVS? CFS? BFS? Etc.
Just for my phone comparison, CM7 (which I am running now) requires me to charge my phone at least once a day. Myn's Warm TwoPointTwo was every other day/every day and a half.

syypher said:
@Cheesy: I turn off all those things If I turn off "data" that turns off Exchange push right? I really need that on all the time.
Click to expand...
Click to collapse
You can set juice defender to turn on data to sync at set intervals; anywhere from 15min to every couple of hours. If you can stand to wait 15 minutes for that email then I would recommend it. I personally like not being interrupted every time I get an email.
Also, make sure your kernel and setCPU aren't trying to both control the same thing. I really like using a kernel with HAVS so I avoid apps that also try to modulate my CPU.
I've tried warm 2.2 and really like it. Although I think I'm getting slightly better battery with Azrael X 4.0 with netarchy 4.3.1-cfs-havs-nosbc and ultimate juice controlling only my data and WiFi connections.
Also,the 3500mah battery is worth every penny if you don't mind the extra thickness.

i owe setcpu and screen off seting for my battery life

I read Greenfieldan's step on the forum here about a week ago, and jsut the HTC Method of battery calibration alone changed my battery life completely.
I also dumped Advanced Task Killer.
In another thread, I rad that CM is the worst drain on a battery and I personally think the guy that wrote that is sadly mistaken. Even with all the steps taken in Greenfieldan's guide, Sense based ROMs are battery killers. They are the worst, by far, and I average battery drain at about 15-20% pr hour, even with screen off.
The #2 killer, is having your screen on. Waiting for that next text to come in with the screen on is not worth it, so turn it off when you're not using it.
With the setup in my sig, and moderate to heavy use, in 12 hours, I only drop about 25% with a Sedio 3500maH battery.
With Sense, like I said, quick battery death.

I'm using CM7 - Nightly 12 right now + Stock Kernel...I also have set cpu to change cpu usage when screen is off.
This combo was my first combo I started trying (2 days ago when I posted this) to test for increased battery life. I followed what some of you guys suggested and let it "work into my phone." Instead of giving up after 1 day of test.
Results! Just yesterday I had my phone on for 14 hours and it was at 18%! That is a HUGE improvement. Right now it is at 65% and I've had it on for about 5 hours. That's really long compared to what it was before! Before I tried changing the ROM, kernel and using Set CPU I would be at the red right now or around 15%.
Thanks you guys for all the suggestions! Any further advice would be greatly appreciated! (Only sad thing is that my GPS doesn't work with CM7 - Nightly 12 >_<...) Other than that I love it!

Performance Improvements with 2.3.4

Hey guys,
Do you notice the performance improvements with the new 2.3.4 update? I have noticed that the screen responsiveness has improved significantly, especially in the browser and in the official Facebook app.

I agree, the screen sensitivity is better while using the browser and when typing on the keyboard. So far that is the only difference that I've noticed. I'll give navigation a whirl this afternoon.

I have just recently updated so have not notice much difference. Maybe I will keep looking at it longer to see.

Don't see any difference here.

Initially I thought I observed some perceptible improvement in scrolling smoothness and touch responsiveness, but at this point I can't honestly say it's not just placebo effect from the update.

For the Nexus One user, the only real "improvement" 'till now is to lose root. I've just received GRJ22 OTA a couple of minutes ago, and i'm going to "hope" that, at least, battery life will show some kind of improvement.
Of course, i also have faith on XDA's guys to find a new way to have root on this one

Battery life has increased by atleast 15% + more responsive.
Sent from my Nexus One using XDA Premium App

flixos said:
For the Nexus One user, the only real "improvement" 'till now is to lose root. I've just received GRJ22 OTA a couple of minutes ago, and i'm going to "hope" that, at least, battery life will show some kind of improvement.
Of course, i also have faith on XDA's guys to find a new way to have root on this one
Click to expand...
Click to collapse
Battery life still sucks.
There is already a root for it. Just flash the su zip file. Not hard.

My battery battery life is much better now. Currently at 36% after 24 hours. Normally I got around 18 hours.
But maybe my usage has been somewhat lighter because I have been busy.
Stock 2.3.4 and no root.
Sent from my Nexus One using XDA App

I never had the battery issue on 2.3.3 and Gingerbread actually brought me a with MUCH better battery life than Froyo, no further change in that on 2.3.4.
After a day on 2.3.4, it seems a tad bit faster than 2.3.3 and the BACK button seems to be working properly again. Previously, it took multiple taps in order for the phone to register a click and I'm pleased it's finally fixed in 2.3.4. Also, the 'black screen' bug seems to have gone but I need further testing. I'm pretty pleased with the update so far.

mine is running definitely smoother - before it would stutter after a few hours of use - I would have to reboot the phone to clear up the glitches
so far so good - I'm happy!

Same here, running stock 2.3.4, the update has fixed the black screen glitches and the 2 second delay issues. I feel its quite stable now, and the battery life has also improved marginally.
Sent from my Nexus One using XDA App

Battery life has improved so much since I flashed 2.3.4! Used it as normal today and I still have 50% left
Sent from my Nexus One using Tapatalk

7 hours 5 minutes on battery, down to 64%. Minimal use.
At least I should beat my 11 hour time yesterday. Something was boned up yesterday, today it is seeming better.

Really appreciate the feedback regarding battery life. Can anyone put up a bit more info with the N1 setting (wifi sleep policy, screen auto brightness, etc).
I'm still sceptical with this battery improvement after being 'traumatised' with bad battery life upon upgrading to 2.3.3 compared to 2.2.2. 2.3.3 can't even last 1/2 day compared to easily getting full day with Froyo 2.2.2 with my usage pattern.
I'll stick to 2.2.2 at the moment until clearer information available. I'm not going through the hassle of downgrading from Gingerbread to Froyo again.
Thank

MasterSun said:
... the update has fixed the ... 2 second delay issues. ...
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
Sure about that?
So far i have only read, that this bug still exists. Also the issue report on the google mobile page hasn't been marked as solved by a google employee.
btw, I'm still on 2.3.3

Battery life is at 50% after exactly 9hrs with phone idling most of the day except for maybe a combined 20-30mins of web browsing earlier. Doesn't seem great, maybe better than before? I've had Wifi Sleep on Never, although I have been at work with no Wifi to connect to.

Feels smoother and the battery life has improved some so far. But, I did not have battery issues with 2.3.3

GnatGoSplat said:
Battery life is at 50% after exactly 9hrs with phone idling most of the day except for maybe a combined 20-30mins of web browsing earlier. Doesn't seem great, maybe better than before? I've had Wifi Sleep on Never, although I have been at work with no Wifi to connect to.
Click to expand...
Click to collapse
50% for 9h of mostly idling? Not that good compared to Froyo 2.2.2. My N1 running Froyo 2.2.2 only consume 20%-25% for 9h.

haturaya said:
50% for 9h of mostly idling? Not that good compared to Froyo 2.2.2. My N1 running Froyo 2.2.2 only consume 20%-25% for 9h.
Click to expand...
Click to collapse
And especially so when HTC's claimed "standby time" on 3G is "250 hours"
LOL
They must make completely insane ridiculous numbers up I think.

[Q] kernel for GB retail?

hi guys im a newbie about android. yesterday i have updated my phone with motorola update gingebread for ms2 retail (italian).
I wish to know if is there a kernel for improve battery duration, i`ve searched around and on this forum but have found nothing.
thx!
edit: around i`ve read that i can improve my battery life installing setcpu or milestone overclock and setting up some profiles with cpu and monitor differents frequences.
anyone tried it? is this helping battery life and are these app compatible with new stock gingerbread 2.3.4 for ms2 retail?

any advice guys? im still searching around, can someone address me to on the right way(aany guide or thread talking about this).

I have never had any battery issues and still don't. Still rockin' at about 23 hours non stop with WiFi and 3G on and brightness set to automatic.
I actually realized I didn't even undervolt yet, so I guess battery performance might be improved.

hi dude, thx for ur reply.
do u use a custom rom? or different battery?
as i told i use a ms2 unbranded with stock rom, now updated battery seems going better now than when i was on froyo but still low hard arriving in the night if i use wifi

The only kernels we can get on ms2 are the stock ones thanks to the locked boot loader. If you downlooad milestone2toolbox from one of the threads in the android development forum (pretty sure miui has it on first page), it has a pretty nice over/underclock feature. And custom roms will help you battery life somewhat, however if you are like me and can't put your phone down, and are on it all the time, you'll still only get like 4 - 6 hours battery life .
Once and once only, I squeezed out 24 hours, I was very proud. Granted that I was bored out of my brain, but still managed about 15 minutes of gaming, a couple calls and about a dozen sms, 1/2 hour browsing xda, another half on android market.
And I don't know about other people's experience with it, but Juice defender seemed to have actually DECREASED my battery life - quite significantly I might add. A friend at work tried it too and unistalled that same day from the amount of drain he got :/. I suspect perhaps its more useful on eclair, but with gingerbread (and maybe froyo) it is redundant.
Moral of the story - underclocking is your friend for battery life. I'm underclocked to 800 mhz and barely notice any performance loss - even when playing NOVA hd
Sent from my A953 using xda premium

hey dude thx for ur reply!
ok ill try tool box. yeah i think same on juice defender.
well i`ve not calibrated my battery and dont know if it helps, but my battery life especially when use wifi is very low!btw ive noticed that the over 60% of consume of the battery juice is about screen. I was thinking of underclock gpu too when i dont use games etc... is that possible on milestone 2? i`ve found nothing around about that

I didn't know phones could have gpu clocked? Unless you were just speculating
Yeah the screen is a bit of a power hog, but just remember that it has back lights lighting it the whole time your using it, so that's the reason it drains so much. So either setting screen brightness to low or automatic is a plus. Obviously low is best but its pretty hard to see . Autosync/gps will push apps like facebook into the lead too.
I'd recomend one of those recharable portable batteries that has a usb out port, they are so handy in a pinch it's a bit of a decent investment too since you can just plug whatever usb cable you have to charge any device really
Oh and using your phone's internet is a crazy, crazy drain to the battery!
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