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I was wondering, if I constantly am killing running process and they are always reloading (voice input, settings, gmail, market, etc), will this drain my battery faster? I'm at 76% with light use from a full charge and the phones been unplugged for around 4 1/2 hours.
That seems normal. mine usually dies within 6 hours, with all settings off. i think i need a new one. under battery settings it says display used 67 % of my battery life and for display time on it says 28 minutes
I've got my display using 73% followed by live wallpaper with 6%.
I mean Display% being higher just means you were actively using your phone more... or you set your timeout too high.
I don't think the actual restarting of the apps uses more battery vs them just running in the background all the time. Unless for some reason they restart almost instantly and you are constantly mashing the kill all apps button then maybe?
As far as your phone dying in 6 hours, that does not sound right at all. Mine definitely goes quite a bit longer than 6 hours consistently. It is currently at 38% battery after 17 hours 24m, with display having used 46% with 55m24s on. Part of that was while it was full brightness when I was outside. I have been at work though so its largely been sitting on my desk. Even when I first got it and was playing with it a ton it went well over 6 hours on a charge.
Some people do seem to have problems with battery life and I can only assume there's a bunch of bad batteries out there, or they are really hammering it..
I used about 25% in 6 hours today from normal usage* and that's even after driving around for half an hour streaming last.fm over bluetooth via 3G.. Sync switched on, wifi off, twitdroid running in the background. The only special thing I have is the setcpu idle tweak.
* Fair bit of browsing, some twitter, the usual 'ooh look you have a google phone' impromptu demos..
Hei all of you
It seems that the legend has been released to some people, and i was wondering what you guys get out of the battery.
I am currently on a Diamond 2, with 1100 Mha battery, and currently get 1½ day out of this, and i want this to be an improvement. The legend, with 1300Mha, OLED screen and newer cpu, sounds like it will be a lot better, but some review mentions the battery life to be really bad.
I am using my phone for 20 text messages, psuh mail, no phone calls and only visit a few websites on 3G. No bluetooth, wifi or GPS. What can i expect of this?
i'm sorry if my English is not good enough,
but i've the HTC legend since Friday, and Saturday i did a simple test, i put the mobile phone to charge Friday night, Saturday about 12:00 pm i disconnected the charger and i've turned the wi-fi, gps,and bluetolth off, only the 3G network was on.
I had also ebuddy running on the background, after 4 hours i didn't touched the phone, and my battery was about the 25%
And the full charge time was almost 2 hours.... i went back to the shop where i bought the phone, they changed my battery and the did a hard reset.
The battery performance is now a little bit better, but it has not the same performance as the iphone 3gs.
Luinwethion said:
i'm sorry if my English is not good enough,
but i've the HTC legend since Friday, and Saturday i did a simple test, i put the mobile phone to charge Friday night, Saturday about 12:00 pm i disconnected the charger and i've turned the wi-fi, gps,and bluetolth off, only the 3G network was on.
I had also ebuddy running on the background, after 4 hours i didn't touched the phone, and my battery was about the 25%
And the full charge time was almost 2 hours.... i went back to the shop where i bought the phone, they changed my battery and the did a hard reset.
The battery performance is now a little bit better, but it has not the same performance as the iphone 3gs.
Click to expand...
Click to collapse
I think the first time you run your phone it will consume the most power. So it's not the right time to test. I suggest you fully charge and fully consume the battery 2-3 times and then put it for a test.
Full capacity of a battery shows up after 2 months.
You will pass from 1 day to 3 days
So here is one short statistic after second charging.
14% of energy left in the battery after:
39 hours since last charging
2 hours of display on (35% of energy)
37 hours of phone connected to the cell (36% of energy)
13 minutes of calls (13% of energy)
Phone used for me "as normal" - cca. 10 SMS, 2 hours of mp3 and FM radio, one hour of net surfing, running sync with Gmail and Google Calendar.
Yes, it is period of 1-3 months to get full capacity of the battery, but in first few usage, you can fully charge and discharge battery.
I have a one day of full usage of the phone (wifi always on, twitter, e-mails, calls etc.)
Getting better
It's getting slowly better with each charging, second week and I'm on two days. Everyone is using it in a different manner, but my battery improved for about a 70%.
got the legend now for 2 weeks and loving it.
Battery life is good, don't expect to go 2 days intensive use without recharge but no phone with these function have this.
I can easily go with one to two day with occasional wifi, gps use and keep 3g or sync on settled on 1 hour intervals while playing some games using apps etc
Blue tooth i haven;t tried but like any phone the power munchers are wifi, blue tooth gps and 3g.
wifi should save lots of power compared to network operator connection
i use wifi at office, and with extensive usage, i can get about 8 hours straight, that is pretty heavy, the screen barely got to sleep
I have tested the battery in plain sleep.
If the device has wifi off and mobile data off (and no sync, ofcourse) i guess it lasts for a week - 10 days. But then you cant use wifi or mobile data.
If you only let it be in stand-by (screen locked and off, no data or wifi or gps or bt) it last quite long, probably close to the stated 300-400 hours in the manual.
In real life that translates to 3-5% battery drain (tested by me for 24h, only sent 2 sms and talked on phone for 2 minutes) per day.
But in normal use, wifi will drain 5-10% battery per hour and 3g/gprs with autosync drains 2-5% per hour depending on net.
No device lasts for more then a day or two if you acctualy use the device.
I have had my Legend for a week and a half now and the battery life is also getting better with each passing day. I can easily use it for a day and a half with quite a lot of WiFi browsing, and up to 30 or 40 minutes of call time. I'm really loving this phone!
Sent from my HTC Legend using the XDA mobile application powered by Tapatalk
Hi fellow Legenders,
i've had the phone for 4 days now. i am having issues with my battery. I have noted some points that i'll share & hopefully find a resolution for my dismal batt life. I have bluettoh on all the time, but it shows very little drain based on BT alone. Other than that, this phone ROCKS!
After full 8hr charge, the phone lasted approx. 13hrs 38mins before reaching critical level with the following findings:
On 08 April 2010
1. Voice calls used 50% batt – 36mins 11s call time.
2. Display on approx. 30% brightness used 21% batt – on for 1hr 10mins 15s
3. Cell standby on 3G used 16% batt – on for 13hrs 38mins (no signal 1%)
4. Phone idle used 8% - on for 12hrs 28mins
5. Bluetooth used 5% - on for 13hrs 28mins
After normal charge till batt 100% (about 3hrs), the phone lasted 15hrs 12mins 41s before reaching critical level
On 9th April 2010
1. Cell standby on 2G used 50% - on for 15hrs 12mins 41s (no signal 3%)
2. Display on aprrox 30% brightness used 18% - on for 29mins 35s
3. Phone idle used 15% batt – on for 14hrs 43mins 5s
4. Voice calls used 10% batt – on for 4mins 14s
5. Bluetooth used 7% - on for 15hrs 12mins 41s
Looking forward to better batt life as the days go by.
cheers,
Su
Very poor battery life for me.It has 7-8 hours stand-by.
1.Every 5 mins e-mail control.
2.Weather with auto update.
3.Friend stream.
4.Background data and auto sync.
5.Enable always-on mobile data
6.3G
I don't understand whats going on.If i left device when i go sleep with full battery after 7-8 hours i look it.It shows me only left %35 battery.
After disable all auto-uptade and 3g its over 1 days.
My hd2 had 1230 mah battery and super big screen and 1ghz processor.It was using %10 with same usage.
Legend has 1300 mah battery and small screen and 600 mhz processor.It uses %65.
Can anyone explain this sucks status?
I m using the legend... and a hd2 as my other device. would say the battery life for the legend is really dismal...
Sent from my HTC Legend using the XDA mobile application powered by Tapatalk
I am happy to report that my phone batt life has improved tremendously since my last charge. I installed OS monitor & checked to see what might be hogging the batt, & discovered some program was keeping my CPU running inthe high 70's & above continuously. I killed that program, fully charged my phone till 100%, restarted the phone for good measure, & with BT on permanently, more than an hour of wifi usage, about half an hour of phone calls & about 30 smses, after 24hrs, i still had about 24% batt left.
So it has definitely improved by leaps. Hope that helps others who have similar problems.
cheers,
Su
it will be good if you can share what's causing the high cpu usage ...
Oh sorry i forgot. it was OpenWatch for BT watches. It has a problem currently with HTC Legend & SE MBW-150. It doesn't have the full functionality as yet for some reason. The reason it ran the CPU load up, was because i had turned off my watch by accident & set the program to search & connect to the watch. My folly really.
cheers,
Su
After three weeks of use:
10h 52m since unplugged - still at 50% of battery
- Display: 49%. Time on: 1h 46m. Auto-brightness, mostly indoor
- Voice calls: 31%. Time on: 22m 53s
- Cell standby: 12%. Time on: 10h 52m
- Phone idle: 6%. Time on: 9h 6m
- Maps: 2%. (played with maps for a couple of minutes)
Gmail/Contacts/Calendar/Weather sync is on
GPS on (almost didn't use it)
WiFi off
Mostly in area with good 3G coverage.
Actual usage:
- Phone calls
- Some internet browsing
- Some chatting via Google Talk
Nice battery time
I've bought and charged my phone last Thursday. GSM only, using WIFI every day for 15-20 minutes, 10-15 min talk, and it's still at 35-40% after 5 days. I've got a magic battery or what?
Chapell said:
I've bought and charged my phone last Thursday. GSM only, using WIFI every day for 15-20 minutes, 10-15 min talk, and it's still at 35-40% after 5 days. I've got a magic battery or what?
Click to expand...
Click to collapse
I can't believe this . I wanna just 24 hours stand-by.I hate to charge it everyday two times.
Maybe my battery is not trained yet, but so far, on my 2-days old n1, battey lasts for 4 hours (mid. backlight, no wifi, very little use).
Still running stock rom and not planning on rooting.
What I noticed is that in my battery drain stats show Display contributing to 80% of total drain. That's with display being on mid setting... is that normal? What is yours (esepecially for people with stock roms)?
Are you playing with the phone a lot? Like is your display always on? 4hrs still seems extream to me, I am rooted and runninng a custom rom, but even when I wasnt I never managed to get through the battery that quickly, and I use the phone a lot
Here's what I do to get good battery... I only keep backlight on like the a ****as hair..lol barely unless outside...... widgets are cool n all, but if there constantly updating thats polling your battery, live wallpapers are cool, but a battery drainer, I also keep gps, locations and bluetooth off unless using them, wifi also.. also the background applications setting uses battery but if ya want updating widgets no way around that...
Also look in seetings about phone, battery use and see what's eating your battery, I use my phone hours at a time so my display is most my battery drain which is normal, everything else is like 7 percent or less, mostly 2 or 3 percent. ....
I think thats all I do, but you may keep stuff on like widgets and that unfortunately eats battery..
I am running everything in my Sig. I have had my N1 for about 2 months now right around that. After a 14 to 16hr day with some heavy to mild usage I am still over 50%, but then again I have 3g turned off and i am only on Edge all the time since i am always around WiFi. So i would tell you 4 hours is a bit extreme but hang in there it does get better. I remember being around 25% for the 1st few weeks until it got better. Other wise do what Temperbad said that is the best way to go. Only widget i am running that updates every hour is my Weather one. Turn the screen all the way down unless it other wise needs to be up. I am sure that is what is killing your battery. Mine is always on the lowest setting until i am outside.
Sadly I'm rooted, but I will state my percentage too.
Weirdly, my display usage is only 15% on Paul's Desire ROM. Honestly I dont see how this may be - but that is what it says. My brightness is quite high too..
Yeah, I'm well aware about widgets and battery drain regarding 3G and all that, I've had PDAs for quite a while.
For comparison, my old and ****ty TP2 would drain about 30-40% of its battery with same usage that would drain my N1 dry.
I do remember that LiIons get better in a week or so of usage, but I wanted to hear what you guys are getting. Would love to hear from someone who's just bought an N1 like me.
It's under full warranty, so I'm not worried too much. Just an inconvenience.
DarkDvr said:
Yeah, I'm well aware about widgets and battery drain regarding 3G and all that, I've had PDAs for quite a while.
For comparison, my old and ****ty TP2 would drain about 30-40% of its battery with same usage that would drain my N1 dry.
I do remember that LiIons get better in a week or so of usage, but I wanted to hear what you guys are getting. Would love to hear from someone who's just bought an N1 like me.
It's under full warranty, so I'm not worried too much. Just an inconvenience.
Click to expand...
Click to collapse
I have my display set to "Auto Brightness," have a display timeout of 1 minute, have my email get synced every hour, and also use a live wallpaper.
My display accounts for 63% of battery usage.
Auto brightness will use more battery than keeping it low. Cause its constantly checking light density through the sensor to give it the correct lighting...
temperbad said:
Auto brightness will use more battery than keeping it low. Cause its constantly checking light density through the sensor to give it the correct lighting...
Click to expand...
Click to collapse
I agree, but disabling that, disabling GPS, WiFi, turning off 3G, killing all widgets.. ok yeah my phone will last me 2 hours longer, but it's also boring as hell.
Might as well go pick up a simple nokia for $10 - battery will last for weeks, but what's the point..
Not saying your advise is bad, it's a good idea.. just that all these advices to turn everything off - what's the point of even having a PDA then..
PacoL250 said:
I have my display set to "Auto Brightness," have a display timeout of 1 minute, have my email get synced every hour, and also use a live wallpaper.
My display accounts for 63% of battery usage.
Click to expand...
Click to collapse
Thanks, this info I can use.
temperbad said:
Auto brightness will use more battery than keeping it low. Cause its constantly checking light density through the sensor to give it the correct lighting...
Click to expand...
Click to collapse
I've read otherwise, though I don't think that Auto Brightness is the optimal battery saving setting.
Obviously it's a middle ground between max and low.
Here's a report of my usage today:
~Wifi and 3G both turned on the whole time
~30 mins of MP3s with head phones
~20 mins of 3G tethering over Bluetooth
~40 mins of apps usage (mostly the Browser and the Gallery)
~8 mins of talk time
one 1 min update through the bootloader
have gmail sync turned on, also twidroid syncs every 15 mins
The Battery use app shows:
54% Display (active 6% of the time)
16% Cell standby
14% Phone idle
4% Wifi (active 51.6% of the time)
4% Android System
Right now 14h26' since unplugged, still having 43% of the battery left. The battery meter says 12 more hours until 0%.
All things considered, the battery life is quite good on my N1.
Edit: forgot to mention, the display is set to the middle setting with the Power widget, no auto brightness
pikipirs said:
Here's a report of my usage today:
~Wifi and 3G both turned on the whole time
~30 mins of MP3s with head phones
~20 mins of 3G tethering over Bluetooth
~40 mins of apps usage (mostly the Browser and the Gallery)
~8 mins of talk time
one 1 min update through the bootloader
have gmail sync turned on, also twidroid syncs every 15 mins
The Battery use app shows:
54% Display (active 6% of the time)
16% Cell standby
14% Phone idle
4% Wifi (active 51.6% of the time)
4% Android System
Right now 14h26' since unplugged, still having 43% of the battery left. The battery meter says 12 more hours until 0%.
All things considered, the battery life is quite good on my N1.
Edit: forgot to mention, the display is set to the middle setting with the Power widget, no auto brightness
Click to expand...
Click to collapse
Wow... that's some serious battery life.
Ok, some questions..
1. screen brightness setting?
2. how long have u had that phone (battery) for? Did it improve over time?
3. Is it rooted/flashed or stock rom?
4. you got any syncing widgets running (RSS/twidroid)? Live wallpaper?
Thanks a bunch for your input!
45% - Display
22% - Cell Standby
17% - Voice Calls
5% - Idle
3% - Android System
2% - Wi-fi
Just one comment. I keep Wi-fi and GPS on all day because Wi-fi sleeps when the screen is off and only polls when the screen is on if you're not using it. GPS is only used when your location is required in an application. i dont know why people are always like "you have to turn these off to get good battery life" (Notice wi-fi is 2%)
also i've been running 8 hours with moderate to heavy use (internet, music, phone calls etc) and I'm @ 40%. The drain from 70% - 40% seems to go so slow compared to 100% - 70%.
45% - Display
22% - Cell Standby
17% - Voice Calls
5% - Idle
3% - Android System
2% - Wi-fi
Just one comment. I keep Wi-fi and GPS on all day because Wi-fi sleeps when the screen is off and only polls when the screen is on if you're not using it. GPS is only used when your location is required in an application. i dont know why people are always like "you have to turn these off to get good battery life" (Notice wi-fi is 2%)
also i've been running 13 hours with moderate to heavy use (internet, music, phone calls etc) and I'm @ 40%. The drain from 70% - 40% seems to go so slow compared to 100% - 70%.
ghostrida said:
45% - Display
22% - Cell Standby
17% - Voice Calls
5% - Idle
3% - Android System
2% - Wi-fi
Just one comment. I keep Wi-fi and GPS on all day because Wi-fi sleeps when the screen is off and only polls when the screen is on if you're not using it. GPS is only used when your location is required in an application. i dont know why people are always like "you have to turn these off to get good battery life" (Notice wi-fi is 2%)
also i've been running 8 hours with moderate to heavy use (internet, music, phone calls etc) and I'm @ 40%. The drain from 70% - 40% seems to go so slow compared to 100% - 70%.
Click to expand...
Click to collapse
Sweet, thanks for the info. It seems my battery is also slowly "training" its way closer to these numbers.
DarkDvr said:
I agree, but disabling that, disabling GPS, WiFi, turning off 3G, killing all widgets.. ok yeah my phone will last me 2 hours longer, but it's also boring as hell.
Might as well go pick up a simple nokia for $10 - battery will last for weeks, but what's the point..
Not saying your advise is bad, it's a good idea.. just that all these advices to turn everything off - what's the point of even having a PDA then..
Click to expand...
Click to collapse
Your right... about the updating widgets and wallpaper, they do make the phone funner.. but why need gps on when not using, or bluetooth, or wifi? Just simply turn them on when using...
So much going on with this phone I can say its good pretty decent battery....
Anyone know how to make my gmail sync every hour instead of instantly?
When I got my Nexus my battery was just as poor, but after using it for a couple of weeks I'm getting about 10 hours usage with medium brightness, WiFi, and gps.
So just give it some time and it should fix it itself.
pikipirs said:
Here's a report of my usage today:
~Wifi and 3G both turned on the whole time
~30 mins of MP3s with head phones
~20 mins of 3G tethering over Bluetooth
~40 mins of apps usage (mostly the Browser and the Gallery)
~8 mins of talk time
one 1 min update through the bootloader
have gmail sync turned on, also twidroid syncs every 15 mins
The Battery use app shows:
54% Display (active 6% of the time)
16% Cell standby
14% Phone idle
4% Wifi (active 51.6% of the time)
4% Android System
Right now 14h26' since unplugged, still having 43% of the battery left. The battery meter says 12 more hours until 0%.
All things considered, the battery life is quite good on my N1.
Edit: forgot to mention, the display is set to the middle setting with the Power widget, no auto brightness
Click to expand...
Click to collapse
What battery meter do you use to tell the amount of hours left?
DarkDvr said:
Maybe my battery is not trained yet, but so far, on my 2-days old n1, battey lasts for 4 hours (mid. backlight, no wifi, very little use).
Still running stock rom and not planning on rooting.
What I noticed is that in my battery drain stats show Display contributing to 80% of total drain. That's with display being on mid setting... is that normal? What is yours (esepecially for people with stock roms)?
Click to expand...
Click to collapse
Your phone or battery is defective. Call HTC for a replacement.
I had my phone charged last night and it died before i woke up in the morning. Now i just finished my charge almost 1 hour and 20 minutes ago, and its already 90 percent. And i have nothing but gtalk running, and a fresh install. Is this possible its a battery problem?
Did you check your battery use in the settings menu under phone status? It breaks down what used all your charge. If you already hooked it up and charged it full, it might be too late to tell since it wipes the last charge's results off.
Keep an eye on that and see if there is something in that list killing your battery more than normal. If everything in there looks ok, it's possible your battery is bad.
1hour 40 min since uplugged
Display 43% 8min
Cell Standby 28% 1h 38min
Phone Idle 19% 1h 30min
And now its 89 percent
mystycs said:
1hour 40 min since uplugged
Display 43% 8min
Cell Standby 28% 1h 38min
Phone Idle 19% 1h 30min
And now its 89 percent
Click to expand...
Click to collapse
That seems normal.
Maybe you have the problem where an SMS is received and the screen stay on? Some people were reporting that problem in another thread. That would definitely kill your battery if you received a message sometime during the night.
I'm at:
Display: 52% 37min
Cell Standby 15% 3hr
Beautiful Widgets 13%
Phone Idle 13% 2hr20min
Bah that sucks, is there a fix for that sms thing? I havent seem it once yet. So basically 10 percent in 2 hours of no use is normal? I thought this phone could be on idle for days. eh.
mystycs said:
Bah that sucks, is there a fix for that sms thing? I havent seem it once yet. So basically 10 percent in 2 hours of no use is normal? I thought this phone could be on idle for days. eh.
Click to expand...
Click to collapse
Sorry, I missed the part where you stated the battery is at 89%...
My phone, on the first charge, lasted 28 hours with moderate to heavy usage. It should last a lot longer if it's just in standby.
Do you think i should go tomorrow to get my battery replaced?
mystycs said:
Do you think i should go tomorrow to get my battery replaced?
Click to expand...
Click to collapse
How long have you had your phone? I'd give it a few days of fully charging/discharging to break in the battery and go from there. But the phone should definitely last you at least all day with moderate use.
I have had it since the night of the 18th. Well i mean i can try that, but it feels like its not the case. I dont know... bah
Display 57%
Cell Standby 14%
Phone Idle 9%
Voice Calls 8%
Camera 5%
Android System 3%
Android OS 2%
Of course it doesn't talk about the 30minutes of Wifi, the 30 or so minutes of watching some videos. Nor does it address surfing the net for around 60minutes and various emails through out the day.
Uptime 17:26:38
Battery 32%
Last night around this same time I had around 20%.
So it does seem to be improving a bit. Of course I wont know until tomorrow's usage.
I unplugged it around 6am and now its 11:37pm. So its lasting as long as I have so far. When I hit the sack I'll plug it in and go for it again tomorrow. As long as it has power when I go to bed then we will get a long just fine.
mystycs said:
1hour 40 min since uplugged
Display 43% 8min
Cell Standby 28% 1h 38min
Phone Idle 19% 1h 30min
And now its 89 percent
Click to expand...
Click to collapse
Remove widgets, lower your brightness, turn off GPS, turn off WiFi, set your notifications to a later time, and close unused running programs and see if that helps.
Personally if I'm below 75% and I have access to a charger, I just keep it plugged in to charge.
I had a fresh reinstall last night, and i lost 32 percent battery from 11pm to 10am without using the phone but for maybe 5 text messages.
I dont think this is normal...
mystycs said:
I had a fresh reinstall last night, and i lost 32 percent battery from 11pm to 10am without using the phone but for maybe 5 text messages.
I dont think this is normal...
Click to expand...
Click to collapse
+1.... Welcome to the inconsistencies of Android.
- Widgets off
- GPS in the task bar on. It only fires it up when it needs it anyways
- Screen Brightness I don't know I think its set to around 17-25% or so
- I turn off all that haptic feedback nonsense
- 3G off
- Wifi off
- Regular background
- I'm not running exchange or anything fancy that constantly looks for email, good old Gmail.
At least thats what I have my phone set up for. "What do you mean you don't have 3G on. Edge is so slow" Yeah its so useful when your phone is laying there doing nothing.
Same i have all that crap turned off. But i get bad battery times. Im thinking of returning and getting my battery replaced today. It wont hurt
Install Battery Graph and see how fast your battery drains at certain time intervals. You can probably tell if it's an app or not causing the problem if you see a big drop in a short time interval.
I was having the same issues for the first three day however I spent A LOT of time playing and tweaking as this is my first Andriod... I would unplug it at 6am and by 8am (with little to no use) I was down to about 65% but I was still thinking about replacing it.
I did the GPS Update and it seems to have helped a TON... Dunno what the coloration is (maybe the bad GPS signal was constantly looking and draining the battery) but it seems to really help.
Hope this helps some.
What is the GPS Update? You mean the fix in the Development section?
Hi everyone. I had NAND installed on my HD2 now for about a month and a half. One of the things that I haven't seen on my phone is better battery life. This is the first phone I have with a data plan so I'm really not sure how much of the battery drains with data. Here is my daily routine. I charge my phone overnight, by 11am-12pm my phone is just about dead. I put it on the charger until about 4pm; usually it's fully charged by then. By the time 10pm comes around it's almost dead again. Doesn't seem like good battery life to me. Someone please let me know if I'm missing something.
Thank you all!
Depends on what you're doing with your hd2.
If you spend a lot of time on the internet with either wifi or 3g, then that drains battery pretty quickly, as with any device. Playing games or watching videos is the same thing, although to a hiigher extent with games. Keeping the phone screen on is also one way to drain battery quickly.
You should install current widget and monitor your standby times, etc. In standy by, your phone should be consuming 4~6 mA ideally.
If you want to monitor your battery usage, first download and install CurrentWidget, enable logging while the phone is on standby to see your standby usage.
Second, need to check battery usage on standby after a call, there are some kernels with a known bug that prevents the phone from going to sleep, consuming 60ma on standby.
Third, Do a battery calibration, it does help a lot if you have never calibrated your battery, android tend to mess up battery reading after a while of not being calibrated. There's a thread about in on forums, search for it, REALLY good info there.
Fourth! check out if you are in a zone with crappy 3G, if the phone has to turn 2g/3g off and on too often it drains battery like whoa.
Fifth, take note of max and min voltage readings with CurrentWidget, your battery might by wearing out (should be maxing at 4.2v and min around 3.3v - 3.6v depending on kernel).
Another thing, before your phone dies, check out battery usage on Settings, see if any program is eating your battery, and check out how long has your screen been on, and post it here
I've always had WAY better battery in Android, even SD, than WMo, MSN/push email killed battery in WMo in about 6 hours, without use, just standby. Android get up to 4 days in standby with Gtalk/Gmail/Exchange Mail, all on Push, along with weather and twitter. With hardcore usage, the battery last between 6 and 7 hours top (Screen on for 4-5 hours), while Gaming, it wont last more than 4 hours (CPU at 100%, Screen always on, GPU at 100%, Brightness 100%).
Normal usage (between 40 mins and 1 hour of Google Maps with GPS on, between 3 and 4 hours of music thru Bluetooth with my car, 10-15 mins talking, about 20-30 SMSs and quite a bit of Gtalk) it makes it thru the day, lasting about 12-14 hours.
Such a low battery life is probably cause your phone is not going to sleep, it should be at 2-5 mah on standby.
Hope it helps
I can play an hour of pokemon (gba rom), listen to pandora whenever im in the car, surf the net for an hour or two, and with a total constant usage of about 5 hours, and at the end of the day ill be left with 30% battery still.
If I don't use it often it will last 40 hours +.
Maybe try a different nand rom?
Im running hyperdroid nand
Zephyrot and kangpeter, Im jealous of your battery life. I'll try what was posted. Thanks for the replies!