Develop Bugs

Battery life evo

I see so many people talking about how they get over 48 hrs of battery life and what not...I have a evo and the 3500 mah extended battery and the best I have seen with custom roms and all kinds of kernels is 14 hrs max....that's without WiFi and 4g. Can some people getting that crazy long battery life please fill me in on, what kernel and Rom if running please. So many rumors about what to run and not...example task killers on froyo or not using one...
Sent from my PC36100 using XDA App

If you underclock the phone and never use it then you'll get those 48 hours.
If you are on it watching movies, playing games, texting, and browsing then expect 4-6 hours.
No matter what Rom and kernal combination you use, if you're a heavy user then expect to be near an outlet a couple times a day.

To maximize my battery life this is what I do:
1. Dim the screen to 25%... unless you're outside this setting is fine everywhere else. Go dimmer if you can, but I don't want to struggle to see the phone either.
2. Turn off data unless you need it. I use my phone to work and I expect to receive my emails timely. But after work, I usually turn off my data.
3. Gtalk app, sign out and make sure to uncheck the automatically sign in
4. App killers don't work
5. Underclock the phone a little... i don't like to but it does help with battery
6. You meantioned wifi off... the phone uses less battery on wifi then on 3g... if its available then use it. Just remember to turn it off.
7. OS monitors, they use juice. After you have finished using them turn them off.

Wow ok...that the whole reason I bought this 3500 mah extended battery...it would b crazy if I ran the stock 1500. I am a delivery driver for FedEx so, its best to not have to charged on the truck every 4 to 5 hrs...
Sent from my PC36100 using XDA App

Using my 2600 Sprint battery I can easily go 48 hours with basic usage. On heavy usage (playing music for 6 hours straight then streaming pandora for about an hour while driving as well as xda browsing, some games, facebook etc, Bluetooth always on, wifi always on) I can go from 7 am to Midnight and still have 30-40% left. I charge every night so I dont know how much longer it would go.
I use:
Fresh 3.3
Stock HTC #11 kernel
Juice Defender - Turning data off when screens off, renable data for 3 minutes every hour to sync
No under/overclocking

Out of the few ROMs I used, calkulins ROM I get a good 24-30 hours of semi heavy use on a 3000mah battery. Regular browsing about every 30 mins to check my favorite sites for updates, streaming radio for 4 to 6 hoursa day, I use wifi when I'm at home. I dont use setcpu or any battery apps like that.

Real world battery expectations

I usually get about 13 hours with light use with everything syncing, live background, and screen on for about 2-3 hours. What do you guys usually get?

I get a good 10 with heavy use, which is darn good for this type of phone.

About the same for me.
Sent from my SPH-D710 using XDA App

OK, this Android OS bug is bugging me. I haven't even used the phone at all and it's 11.30am and I already lost 55% battery life, took off charger at 5am. Guess the culprit...
I really don't want to flash some custom ROM or root yet when a stock ROM is not out or start from scratch reset but I like everything about this phone and came running into its embrace from a NS4G that I thought had a terrible battery and craptastic radio. This is absurd.
So perplexed at the moment...
Sent from my SPH-D710

im stock, and with little use like only 1 hr screen on time it was 54% after 16 hrs
Sent from my Samsung Galaxy S2

I've flashed to Starburst v1.5 and I have been getting 10+ hours with pretty heavy/frequent use.

Phone is sitting dormant really with just very little use. Has been off the charger since 6:30am and its not 2pm and I am at 88%.
just checking email and doing my fantasy football updates. Little web action to unsubscribe from some sites and that is about it. Definitely much better than yesterday. Rebooted and got my Android OS taking 30% of battery instead of 54% and got juicedefender running on aggressive. Seems like my battery is super good now.

Heavy use... About 12hrs. Live wallpaper, FB, maps, gps, 4G, games, etc...
Light use.. around 21hrs. I was still at 30% when I took that pic. I don't know maybe it could do 30hrs. Live wallpaper, FB, and text from time to time...
Running stock btw with no battery helper apps or juice defenders, and Im using the "Galaxy" live wallpaper. Still, even for heavy use this thing has lasted me. Very happy with the battery life.
Sent from my Epic 4G Touch using XDA app

tdavis42 said:
I usually get about 13 hours with light use with everything syncing, live background, and screen on for about 2-3 hours. What do you guys usually get?
Click to expand...
Click to collapse
Here's a way to calculate your expected usage. It isn't exactly precise but it will give you a decent estimate.
Gmail/contact/calendar sync on.
Battery consumption:
1) Screen off, wifi on - 0.5%-1% per hour.
2) Screen off, 3g on, good signal - 1% per hour.
3) Screen off, 3g on, bad signal - 1 - 10% per hour.
4) Screen on, minimal brightness, reading e-books - 1% per 8 minutes.
5) Screen on, minimal/medium brightness, web browsing/youtube - 1% per 4 minutes.
6) Screen on, minimal/medium brightness, games - 1% per 2 minutes.

Me today so far... I was at school thats why there wasnt much use for a while..
Sent from my SPH-D710 using XDA App

My phone can barley make it through a 7 hour day of streaming music and 3 of those hours airplane mode is on.. Absurd.
Sent from my SPH-D710 using XDA App

bman55 said:
My phone can barley make it through a 7 hour day of streaming music and 3 of those hours airplane mode is on.. Absurd.
Sent from my SPH-D710 using XDA App
Click to expand...
Click to collapse
Either your phone is defective, or ... Come on! I can get 6-7 hours of youtube. Streaming music with the screen off must use much less battery.
Something else is draining your battery in a big way.
In all likelihood, you are used to gsm phones, and not CDMA. With CDMA phones, having a weak signal result is a HEAVY battery drain.
So, if you signal is kinda weak, in an office or other place of work, you are likely to burn battery.
My Sprint signal is very weak at work. What I do to save battery is switch to roaming.
My secondary roaming provider has a much stronger signal. Their cell tower must be much closer..
So, the battery drain while roaming is almost as low as with Sprint with a good signal.
For CDMA phones, there's paid app in the market called Roam Control.
Using that app to switch to roaming and save battery is the only way I know...]
EDIT: Ok, I lied... I just thought a bit more about the issue.
There's another way.
You can flash a verizon PRL instead of a Sprint one. Verizon usually has a stronger (and less battery draining) signal in my area...

1% per hour at idle with no use (idle) here.
Goes up with use.
6 - 8 hours of medium duty use (web music ect)
4 hours of streaming netflix
overall compares very favorably with every android device i've ever used (starting with launch day moment (nov 2009)
this is with everything on 4g, bluetooth , gps ect. with no effort to save batt. usually in a marginal service area.

Another battery thread. Because...

There aren't enough already. I get great battery life. How about you?
Crazy world, ay?

Thanks for the constructive thread. My battery life is awful.
Sent from my Galaxy Nexus using Tapatalk

How dare you.
Sent from my Galaxy Nexus using xda premium

14h and still have 70% remaining.
Sent from my Galaxy Nexus using xda premium

6 hours and I have 66 percent remaining, light usage.

Placebo effects are interesting.
I bought the extended battery, and placed the old one on my desk. After charging it up I noticed a decent gain in battery life. The next day, bored I picked up the old battery laying on my desk and noticed it was 2100mah according to the sticker. Confused I was like "woooah my phone must had come with an extended battery" then I decided to check what my phone had in it....1850mah *head slap* somehowI mixed them up when I installed it.../sigh

Good standby time (gotten up to 18 hours with light use), but about 3 hours screen on time. Disappointed.

7hours and im at 55% power... right on track for my average usage between 12-14 hours per charge

The unit does not charge. In the beginning before the issue with it dying after the first two seconds began it wouldn’t charge unless it was turned off. There are cases opened about both of these issues on the android website and the only problem is I can’t try any of these solutions because the phone won’t even boot up. Not even into fastboot mode. I tried charging all night and it still will not go past the colorful boot screen sequence and sometimes I can’t even get it to turn on to say Google. And when it does turn on, it only stays on for 2 seconds and then it just dies. That’s the reason why it won’t let me flash the factory images. I tried the USB charging unit that came with the phone on my international Samsung galaxy s2 and it charged just fine.
Anyone have any ideas?

after about 8 hours i burned thru 60% of my battery. meaning I had 40% left over. I would say this is with moderate to heavy use. downloading/updating apps, surfing the web, going on facebook, texting, emails. etc.

Today i had almost 8.5 hrs off battery and just under 3 hrs display time with 39% which is about par for me. I don't have any sync on but i check my mail constantly, check xda, read news and surf the web and occasionally light gaming but not today. At lunch i'm on it about 40 mins on average. And i have spotty signal throughout the day, especially during lunch. It really boils down to realistic expectations and actual usage. A lot of peeps that compare to me wonder why their battery is so terrible but i don't have anything serious going on when i'm not actually using the phone. I don't do social networking. I don't have my phone constantly polling for data on top of the constant polling for signal on top of the constantly checking my battery stats wondering why I'm not getting 6 hours display time. I think some of the battery rage is wasted on that alone. Motorola Droid phones have historically done well on battery because Motorola's usually have great radios on top of the usually great reception Verizon brings. Also, we demand much of our phones, a lot more than last year and the year before. Faster data speeds demand more juice also. Verizon 3g is slow in comparison to T-Mobile/atnt hspa but better efficiency, better architecture and smaller chip sets have helped cancel out a lot of that on hspa radios Lte is still early generation tech and those speeds are ludicrous for a mobile device yet some Verizon folks wonder why they cant pull down 4 hours display time much less 3 when hspa is far more efficient and adequate for the time being. If Verizon wasn't so crooked i more than likely would be an lte nexus owner. I think more people really need to consider what light, moderate and heavy usage really is. Today was realistically heavy moderate use for me. A heavy day for me is tanking the battery in less than 10 hours with 4 hours display. Some of you are light users but your phone is working while you are actually working and you only get 2 hours display time because you had to have your phone tell you bobby cussed out his boss today because of no Xmas bonus, sally cheated on bobby, and bobby is getting sloshed tonight all waiting for you as soon as you pick up your phone and while you're catching up with the on demand soap opera your phone is downloading all your emails in the background. And while it is doing all this your phone is heating up and making electrons have more resistance in the circuitry. The cooler your phone is the less demanding it is on the amperage. Anyways, hopefully this weekend i will get to see if the screen can 5-6 hours display on wifi on one charge. With hspa on.
Crazy world, ay?

14 hours 7 min. Light usage, only one hour on wifi... 57%.. So ya, battery life is just fine
Sent from my Galaxy Nexus using xda premium

AMAZING battery life on gsm Gnex

This is from my first full charge cycle. Completely stock. Amazing! This is 3.5 hours screen on and 2 hours voice calls. It's not letting me upload those screen shots for some reason.
Sent from my Galaxy Nexus using XDA

thats pretty good!

Yeah mine has been pretty solid as well. Yesterday after 17hrs I was still at 35% which is better than most Android phones I've had.

I really think that galaxy nexus standby is amazing but the screen is the only thing that really drains the battery. So if you don't use it heavily, you should be fine. I use my nexus moderately and I still get through a day with about 40% left.
Sent from my Galaxy Nexus using XDA

Pretty good... i find voice calls and cell signal to be main battery drain cause on Sprint's turtle 3G network.
With 2100mah extended battery, 15% juice left unplugged at 8:30am, replugging in at 10pm, 2.5hr screen, 1hr gps, 30min voice

2nd full charge cycle
Here are the results from my 2nd full charge cycle:
40+ hours off charger; 4.5 hours screen-on time. Remarkably good.

How are you getting such good battery life? i can't seem to even last a whole work day, requiring me to charge before I leave the office.
I just got my replacement, so hopefully it will be better this time around.

CoronaDelux said:
How are you getting such good battery life? i can't seem to even last a whole work day, requiring me to charge before I leave the office.
I just got my replacement, so hopefully it will be better this time around.
Click to expand...
Click to collapse
I use 30-40% brightness. Black wallpaper. Other than that, nothing special. I only have 1 gmail account syncing, unlike some of the people on here that have 3 or 4 email accounts syncing. I also only have like 2-3 widgets running (beautiful widgets smaller home, audiomanager pro, astrid, and maybe one or two others). And most of the screen on time is doing relatively simple tasks like web browsing, reading xda, google talk, etc. Nothing too terribly intensive like video.
Based on my experience though it seems like pretty much anybody except the heaviest of users should be able to get at least a full day's use out of it, and lighter users should easily be able to get 2.
Is yours GSM? I hear the Vzw/Sprint ones get far worse battery life.

kyokeun1234 said:
I really think that galaxy nexus standby is amazing but the screen is the only thing that really drains the battery. So if you don't use it heavily, you should be fine. I use my nexus moderately and I still get through a day with about 40% left.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
I agree. I ended a day with ~70% battery left, and most of my usage was the screen (~30 minutes or something). I haven't had any issues with my battery dying on me yet. If I left the screen off all day, I could probably use 10-15%.

Nvm
Sent From My Sprint Galaxy Nexus via XDA Premium

chrikenn said:
I use 30-40% brightness. Black wallpaper. Other than that, nothing special. I only have 1 gmail account syncing, unlike some of the people on here that have 3 or 4 email accounts syncing. I also only have like 2-3 widgets running (beautiful widgets smaller home, audiomanager pro, astrid, and maybe one or two others). And most of the screen on time is doing relatively simple tasks like web browsing, reading xda, google talk, etc. Nothing too terribly intensive like video.
Based on my experience though it seems like pretty much anybody except the heaviest of users should be able to get at least a full day's use out of it, and lighter users should easily be able to get 2.
Is yours GSM? I hear the Vzw/Sprint ones get far worse battery life.
Click to expand...
Click to collapse
...your setup works on my GNex!
thanks
Sent from my Galaxy Nexus

I bet it's not LTE
CoronaDelux said:
How are you getting such good battery life? i can't seem to even last a whole work day, requiring me to charge before I leave the office.
I just got my replacement, so hopefully it will be better this time around.
Click to expand...
Click to collapse
I'm guessing it isn't using LTE. If I only connect by wifi and turn off data syncing then I can get more than a day too (with moderate use).
LTE really drains the battery.

alephnaut said:
I'm guessing it isn't using LTE. If I only connect by wifi and turn off data syncing then I can get more than a day too (with moderate use).
LTE really drains the battery.
Click to expand...
Click to collapse
Correct it is gsm, not lte.

That's impressive! Stock rom allows you to get at least 20 hours of WiFi/3G with 3-4 hrs of screen. Auto brightness. Here in Europe we don't have LTE, so our batteries could last a little bit more.

avarage battery use is over 13 hours (cm9+franco kernel).

10 hours and 53 min it dropped to 94% worth mentioning I didn't even touch the phone, can't seem to post a screen shot of it
Right now I am at 45% and I used it quiet heavily today
I didn't charge the phone even if it sems like it
Sent from my Samsung GNexus

Some of the best I've seen so far from my phone (about two weeks old) is posted here. Almost 36 hours of uptime! Wifi on the whole time, had a signal for most of it too, but guarantee there were some times that I didn't (because I was trying to use the phone then). This includes time spent playing some games as well. I've fired up Osmos HD, Everlands, Swords and Soldiers, and Draw Something at some point during that charge for at least a few iterations of play on each game. Decent amount of browsing, including hits from Google Shopper for some price comparisons. I'm syncing one Google account and one Exchange account, with black wallpaper, auto brightness (not tuned) and the calendar, news and weather, settings, and prepaid usage widgets. Stock ICS and unrooted.

i have ext battery and can run (what seems like) forever

[Q] Whats your battery life like?

I haven't seen a battery life thread for the AT&T S3, so I'll start one.
Mine is around 13 hours with moderate use. I listen to podcasts for an hour in the morning (commute to work), read Pulse News and Facebook for about an hour at lunch, and listen to another hour of podcasts for the commute back home. By the time I get home, I'm around 13% life. I usually get the battery warning while listening to my podcast. In comparison, my GNex GSM gets 17 hours with the same use pattern. When I get home, I'm usually around 37%. Besides Samsung's and AT&T's bloatware, same apps, no widgets.
All told, I am very disappointed with battery life. I don't believe in underclocking my CPU in or disabling haptic feedback. I use the "Power Saver" mode, but only use the reduced screen power consumption feature (reduces framerates and brightness). WFI is always off (I don't have WIFI at work). I also disabled all of the Motion features. I disabled S-Voice (it monitors for the Hi Galaxy, and disabling also allows for a very responsive Home button).
I calculated my idle battery drain (unplugged when fully charged and not touch it) at around 4.4% per hour. That only gives 22.7 hours of standby! My Galaxy Nexus GSM can go at least 2 days (sometimes I forget to charge it at night on the weekends - also not used the phone).
Is it AT&T's LTE? Is it the Gsiff_daemon process? Is it TouchWiz? Or is it just my phone?
What's your battery life like?

You pretty much hit it right on the head. I had the extended battery from Samsung on my Gnex and could easily get 20 hours with moderate usage.
This phone despite using CM10 or AOKP with the JB kernel I never see battery life that good. I'm in the 14-15 hour range with about 3 hours of screen on time. That's with wifi off, and we don't have LTE yet. All in all, it isn't very good.
Sent from my SAMSUNG-SGH-I747 using xda premium

I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app

JayRolla said:
I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
Stock? What features do you have turned off? Do you use WIFI exclusively? Do you turn off your data network (LTE/HSPA)? Did you turn off Sync?
I don't use WIFI, and I leave my data on (as it should be - just like I had it on my GNex). I also leave sync on. I understand that using these decrease battery life, but come on... not like this. The GNex faired very well, and it had a smaller battery. Besides LTE and an S4 (and the S4 should be more power efficient), there isn't much different between the GNex and the S3.
If I turn on the screen for 8 hours, there won't be enough for sleep time! It'll just die... if it even makes it to 8 hours...

20+ hrs with multiple accounts syncing at 1 to 2hr intervals, screen on time of average 4hrs. Heavy use. Wifi on all the time.

stock, rooted, debloated, super-aggressive power management I was getting maybe 12 hours with 2 hours screen time.
I saw you didn't believe in underclocking, but I started using Cpu Editor http://forum.xda-developers.com/showthread.php?t=1798765 and am loving it, can do 16 hours and 4 hours of screen time with no problems, will do the trick for me.

JayRolla said:
I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
That's nearly impossible. What's your setup? Fricken hate it when people post battery life without explaining what their setup is.
Sent from my SAMSUNG-SGH-I747 using xda premium

My battery life with stock battery sucked too. Att signal sucks where I leave and waste 30% battery in that alone everyday. I got the Hyperion extended battery and loving it. Currently at 70% when usually I would be at 45-50%.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

JayRolla said:
I average 32-38 hours with sleep and all. Usually around 8+ screen on time.
Sent from my SGH-I747 using XDA Premium HD app
Click to expand...
Click to collapse
I hate to be "that guy" but I have a hard time believing anything close to this is even possible. Can you show us a pic of your battery stats?

Just use cpu tuner, It has profiles for each level of battery life so it gradually slows down your cpu's. You can get performance and bat' life.
Check it out

my battery drains a lot when i'm on wifi even when my screen isn't on. I get on average 14 hours running 1.4 GHz

You have a faulty radio.
I consistently get 40+ hours off charger with 4-5 hours screen on time with a couple hours of browsing, 3-4 hours of music, texts, an hour of calls or so, playing casual games for another hour.
Stock. No hacks. No root. Disabled all unnecessary carrier and samsung apps and disabled GPS unless i need it. Auto brightness, 2 hours sync for weathereye, flipboard and gmail syncing all the time. I do mostly use Wifi at home because my signal at home is bad and that quickly drains my battery. At work my phone idles for eight hours at a 2-3 % loss with 3G on (i use my old SIM, i do not have an LTE plan, I am on Rogers Wireless).

phonex1 said:
You have a faulty radio.
I consistently get 40+ hours off charger with 4-5 hours screen on time with a couple hours of browsing, 3-4 hours of music, texts, an hour of calls or so, playing casual games for another hour.
Stock. No hacks. No root. Disabled all unnecessary carrier and samsung apps and disabled GPS unless i need it. Auto brightness, 2 hours sync for weathereye, flipboard and gmail syncing all the time. I do mostly use Wifi at home because my signal at home is bad and that quickly drains my battery. At work my phone idles for eight hours at a 2-3 % loss with 3G on (i use my old SIM, i do not have an LTE plan, I am on Rogers Wireless).
Click to expand...
Click to collapse
You consistently (or have ever got) get 40+ hours off charger with 4 to 5 hours of screen time? Do you have your phone hooked up to a car battery?

I just factory reset (wiped data and cache) the phone and installed the apps I need (maybe something was badly configured or something) - did that yesterday night. Charged it up for this morning, and now I got 18 hours and still have 17% left. Screen on time says 1:38 hours.
This is on the same stock rooted and deodexed ROM. No hotboots either, so gsiff_daemon didn't rear it's ugly head.
Also no CPU Sleeper or any of these underclocking apps. I'm happy now, but wondering wtf was causing the problem... and will it happen again (after all, this is only day one).

I'm getting about 13 hours with 5 and a half hours of screen time. Underclocked to 1.2ghz and I have my own screen off profile. Great battery in my opinion
Sent from my SAMSUNG-SGH-I747 using xda premium

Phone finally died. Just over 19 hours. Heavy use towards the end because I was downloading and installing the rest of my apps from Google Play & Amazon App Store. Was also setting the apps up ( accounts, settings, and notifications...). Final screen on time was about 2 hours.

It's only been two days since I've had the phone, I've gotten about 14 hrs with roughly 3.5 hrs screen on time. I hate when I see people with 2 days off the charger and ridiculous screen on time. If you put the phone in airplane mode and ran just the screen you probably wouldn't last 10 hrs unless it was on low brightness. I had the Razor Maxx and I could get around 30 hrs usage with 4-5 hrs talk and 6 hrs screen on and that's the best battery life I've ever gotten on any phone with real usage.
I would like to get better stand by and more screen time out of this phone without getting an extended battery.

TheFiveDots said:
You consistently (or have ever got) get 40+ hours off charger with 4 to 5 hours of screen time? Do you have your phone hooked up to a car battery?
Click to expand...
Click to collapse
Nope. Stock battery. May be some of you have faulty batteries/radios/firmwares or run too much stuff at the same time.
jordant2 said:
It's only been two days since I've had the phone, I've gotten about 14 hrs with roughly 3.5 hrs screen on time. I hate when I see people with 2 days off the charger and ridiculous screen on time. If you put the phone in airplane mode and ran just the screen you probably wouldn't last 10 hrs unless it was on low brightness. I had the Razor Maxx and I could get around 30 hrs usage with 4-5 hrs talk and 6 hrs screen on and that's the best battery life I've ever gotten on any phone with real usage.
I would like to get better stand by and more screen time out of this phone without getting an extended battery.
Click to expand...
Click to collapse
No airplane mode. Cellular connection is always on even during the night. Only difference is at home i have wifi on instead of data.
Flipboard, weathereye and an appsales app syncing every 4 hours. Auto sync for google account and facebook. Automatic brightness. Almost all samsung and Rogers apps disabled (except for myaccount and a couple samsung apps) and motion disabled since i have no use for the gestures apart from being a novelty the first week.
No root. No hacks. I am actually amazed. This is the first android phone that has battery life on par with my iPhone 4 and the unparalleled smoothness. My HTC One X lagged, this never does even with a few apps installed now including games. I look at my iPhone and think "why do i still keep it? It is no longer relevant".

Ive got my UV tweaked just right on my ktoonez kernel and keeping my screen level as low as can be and I'm now practically making it to TWO days battery life! Plug in every second afternoon or evening after moderate use. Occasionally it doesn't last as long. Quite happy now. Oh and that's with this baby cranked to 1.809Ghz! But obviously tweaked to use that under strain otherwise using lower clocks and deep sleeping with 384mhz.
Got a 4200mah extended battery on way and can't wait to see how much I can squeeze out of it too.
Sent from my SGH-I747M using xda premium

My GS3 i747m lasts around 50-55 hours per charge cycle..
It is running stock Rogers GS3 ICS, not rooted, all stock. Battery is stock as well.
Not using LTE, using HSPA+ ("4G") with data turned ON with Sync turned OFF
(**NOTE: sometimes, the battery is drained due to poor reception, and the phone will use more power for the cellular signal.. In my case, my 3G connection in my area seems alright for the most part, about 1 bar less from full)
Power saving is turned ON. WiFi powersave is turned ON.
Moderated WiFi usage in 2.4ghz 802.11g-mode only.
Every night when I go to sleep, my flight mode is turned ON. (I sleep around 9-10 hours everyday, so the phone stays on flight mode for 9-10 hours a day)
In the morning, I turn the flight mode OFF.
Bluetooth, GPS both are turned OFF
Screen brightness turned 1/4 brightness
LED notification turned OFF
Also, I have a task killer killing ALL BACKGROUND SERVICES every half hour.
Without killing all the background apps, my RAM usage is around 600-700 MB out of 1.6 GB of RAM
Killing all the background apps brings the RAM usage to around 360 MB of 1.6 GB
Without killing background apps, my battery life is shortened even when the phone is on standby.
Do this, and your battery life is pretty good..