Database Users

Getting ready to give up on my Evo because of battery life.

UPDATED MY SETTINGS
So as many other users I've been having lots of problems with battery life. I've done so many things in an effort to try to improve battery life but it doesn't seem to improve as much as it has for other people
This is what I have done:
Installed Baked Snack 9.7
Have brightness set to automatic
Changed the preferred network type GSM Auto (PRL) to CDMA Auto (PRL)
Installed Juice Defender
Installed SetCPU and have it so that my phone is under clocked to 245mhz when screen is off.
Turned haptic feedback off
Turned Off Auto-Sync
Manage my running applications with Advanced Task Manager and have it so that it ends apps every 30 minutes.
Flashed the newest Radio
Reconditioned my battery like HTC representatives suggested
Even with all these changes I'm lucky to get 10 hours of battery with moderate use. Far below the 16-20 hours that other users claim to get.
I don't understand why my battery life is so bad. Any tips? Maybe something I did wrong?

rockethot said:
So as many other users I've been having lots of problems with battery life. I've done so many things in an effort to try to improve battery life but it doesn't seem to improve as much as it has for other people
This is what I have done:
Installed DC 3.2.3 and have it set to the Battery Saver Profile
Have maximum Brightness Set to 25%
Changed the preferred network type GSM Auto (PRL) to CDMA Auto (PRL)
Installed Juice Defender
Installed the OverclockWidget and set it so that when the screen is off the processor runs at 245 mhz.
Turned haptic feedback off
Turned Off Auto-Sync
Manage my running applications with Advanced Task Manager
Even with all these changes I'm lucky to get 10 hours of battery. Far below the 16-20 hours that other users claim to get. I use my phone mainly for texting, send maybe 200 per day. Connect to the marketplace for about 20 minutes in total and and never watch youtube videos or surf the web. I spend around 20 minutes a day on the phone at most.
I don't understand why my battery life is so bad. Any tips? Maybe something I did wrong?
Click to expand...
Click to collapse
Perform the HTC suggested battery cycling.
Charge until full, unplug, recharge, unplug, recharge, turn off, recharge, turn on, recharge for a few times.

No comment on the battery life as I have no problems but why did you want this phone in the first place if you only text and don't use the internet? I would own a Blackberry or Nokia E71 if I used my phone in that way.

Minjin said:
No comment on the battery life as I have no problems but why did you want this phone in the first place if you only text and don't use the internet? I would own a Blackberry or Nokia E71 if I used my phone in that way.
Click to expand...
Click to collapse
I expected someone to say that, I used the internet heavily for the first few days and saw the horrible battery life so I started limiting how much I went on and this is how much battery I'm getting now. I do use apps sometimes though
jerryparid said:
Perform the HTC suggested battery cycling.
Charge until full, unplug, recharge, unplug, recharge, turn off, recharge, turn on, recharge for a few times.
Click to expand...
Click to collapse
I tried that, it worked on the first day but then battery went back to normal the day afterwards

Try running dcpowertop via ADB to see if something is causing a lot of wakes and preventing your phone from sleeping. Also try running Systempanel monitoring to see what is using up the CPU time and draining the battery.
Also, this does nothing unless you are running a custom kernel (You didn't mention if you were, so just sayin'):
Installed the OverclockWidget and set it so that when the screen is off the processor runs at 245 mhz.
Click to expand...
Click to collapse
But, even so, you should be well above 10hrs battery life with the other changes you made.

rockethot said:
I expected someone to say that, I used the internet heavily for the first few days and saw the horrible battery life so I started limiting how much I went on and this is how much battery I'm getting now. I do use apps sometimes though
I tried that, it worked on the first day but then battery went back to normal the day afterwards
Click to expand...
Click to collapse
Bad luck? Could try replacing battery and getting a 1750.

DanBergundy said:
Bad luck? Could try replacing battery and getting a 1750.
Click to expand...
Click to collapse
He's better off with this deal really, many members have purchased them (including myself) and they perform near as well, or just as well as the OEM battery - but you get 2 of them, AND a charger:
http://forum.xda-developers.com/showthread.php?t=715739
Most batteries above 1500mAh do not even perform close to what they say they should. Check out batteryboss.org for details.

Philosuffer said:
Try running dcpowertop via ADB to see if something is causing a lot of wakes and preventing your phone from sleeping. Also try running Systempanel monitoring to see what is using up the CPU time and draining the battery.
Also, this does nothing unless you are running a custom kernel (You didn't mention if you were, so just sayin'):
But, even so, you should be well above 10hrs battery life with the other changes you made.
Click to expand...
Click to collapse
I'll give dcpowertop a try.
I just uninstalled overclockwidget and installed SetCPU instead, the new version has the perflock disabler which should allow me to underclock.

If you are in a sketchy service area, your battery will drain fast.

How much do u use your phone? That's right there the key when other people say ILL GET 16-20 HOURS OF BATTERY LIFE. Yes cause they don use it as much as i do, maybe u use.ur phone hardcore too, texting mms back and forward like no joke. Lots of them. I do over 600 just the morning. So my battery die around 2 then i use my hero battery that i have as back up. Its BS when other ones say that they get crazy amount of battery. Yes it can be but cause they don't use the phone as much, my buddie has a iphone 4 and we tested it against the evo and yes he's better but not crazy better like when i was on 50% left he was on 62-65 % my phone died first he was on 10% left. ...
Sent from my PC36100 using Tapatalk

Ok, so SetCPU does actually work and I have successfully downclocked my phone.

If you send 200 texts per day and do little else, as smart phone is not for you. Get a more basic phone that would give you 3-4 days of heavy usage.
Sent from my PC36100 using XDA App

That's very strange especially with how little you use it now to try to get more battery life.
Only other thing I can't think of that's not on your list is disabling Google Talk auto sign-in. Not that I think that will make up the difference you are seeing, but it's something else to try. You seem to be doing everything right, maybe try a clean ROM install?

redditor01 said:
If you send 200 texts per day and do little else, as smart phone is not for you. Get a more basic phone that would give you 3-4 days of heavy usage.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I started limiting myself to try to squeeze as much battery life as I could.

rockethot said:
So as many other users I've been having lots of problems with battery life. I've done so many things in an effort to try to improve battery life but it doesn't seem to improve as much as it has for other people
This is what I have done:
Installed DC 3.2.3 and have it set to the Battery Saver Profile
Have maximum Brightness Set to 25%
Changed the preferred network type GSM Auto (PRL) to CDMA Auto (PRL)
Installed Juice Defender
Installed the OverclockWidget and set it so that when the screen is off the processor runs at 245 mhz.
Turned haptic feedback off
Turned Off Auto-Sync
Manage my running applications with Advanced Task Manager
Even with all these changes I'm lucky to get 10 hours of battery. Far below the 16-20 hours that other users claim to get. I use my phone mainly for texting, send maybe 200 per day. Connect to the marketplace for about 20 minutes in total and and never watch youtube videos or surf the web. I spend around 20 minutes a day on the phone at most.
I don't understand why my battery life is so bad. Any tips? Maybe something I did wrong?
Click to expand...
Click to collapse
Im running "bakedsnacks" latest version, try that. Ive been having insane battery life. It already has the undervolting kernel in it. Give it a try, u have nothing to lose. But you have to remember that the Evo is a beast .

What is your dcpowertop
Sent from my PC36100 using XDA App

Follow the Battery Recalibration instructions in the cyanogenmod wiki.
Doing this, I was at 73% after 26 hours unplugged. Yes, I was using the phone: 20 Text messages, about 20 minutes of pocket empires, 20 minutes of another game, WiFi enabled for most of those hours, and I even ran the "Relax and Sleep" app for half an hour when I went to bed.
DC 3.2.3 with the Balanced profile.

brownmc77 said:
Im running "bakedsnacks" latest version, try that. Ive been having insane battery life. It already has the undervolting kernel in it. Give it a try, u have nothing to lose. But you have to remember that the Evo is a beast .
Click to expand...
Click to collapse
I'll give baked snack a try

You don't need to turn off all those features to get better battery life.
If you really have trouble, simply downclock the cpu to something like 460 Mhz and you battery life will double.
Then have someone make an undervolted kernel for you, and your battery life will triple.

When you say managing your apps with ATM? Are you using it to kill your processes? You probably don't need to manually or even schedule task killing with the lowmemkiller in DC.
One thing you didn't mention is what your signal strength in the area is. My 3g reception is utter trash in my office, so I have an extra cable to keep it charged. Overall, my phone drops about 1% while idle and I don't have any task management or cpu throttling apps going.

cyanogen six sucks the battery life

My battery life on cyanogen six is down right awful. Every day I charge it at night and when I go to bed even if I don't use it its at 15%
Isn't there anything I can do?

Macmee said:
My battery life on cyanogen six is down right awful. Every day I charge it at night and when I go to bed even if I don't use it its at 15%
Isn't there anything I can do?
Click to expand...
Click to collapse
Its not cyanogen 6. i have a 4ma drain when the phone is sleeping. thats less then a 1 % a hour

wsrider said:
Its not cyanogen 6. i have a 4ma drain when the phone is sleeping. thats less then a 1 % a hour
Click to expand...
Click to collapse
I, as well, see about a 1%/hour drain when my phone is not in use.
Usually, unruly battery drain is due to a rouge application you have installed.

I'm getting better than ever battery life on CM6.
Try charging all the way, reboot into recovery, wipe battery stats, charge all the way again.

I'm getting better than ever battery life on CM6.
Try charging all the way, reboot into recovery, wipe battery stats, charge all the way again.

danguyf said:
I'm getting better than ever battery life on CM6.
Try charging all the way, reboot into recovery, wipe battery stats, charge all the way again.
Click to expand...
Click to collapse
I did something similar... I got it to warning (15%) and then erased battery stats... I then ran my my phone until it died and died again... after that it shouldn't get past boot if so then proceed to boot it into bootloader. The bootloaders white screen should drain back up battery quickly so only leave it on for only 2-3 mins. Charge it fully powered off and enjoy 15+ hours uptime!

my battery sucks ass too it was never like this before??? kernel??? could a different kernel fix this issue..if so which is the best please be specific so many kernel to choose if any...please help..thanks!
does the phone radio matter because im using the 5.8.4 i believe..

xghostyxjokerx said:
my battery sucks ass too it was never like this before??? kernel??? could a different kernel fix this issue..if so which is the best please be specific so many kernel to choose if any...please help..thanks!
does the phone radio matter because im using the 5.8.4 i believe..
Click to expand...
Click to collapse
cyan 6 has had terrible battery life for me. so i switched back to leofroyo latest beta rom and got back my 3hr/% standby battery life. with widgets and email checking every 30 minutes. i'm down to 2hr/% in standby. usually in a day i lose 25% battery life with mild internet use and calling. i charge my phone every two days. can't beat that.

Try manually closing all applications & services that are not vital to your phone, then test over a day or two. If that doesn't work, try a different kernel.

Okay I've had about enough of this. It goes down to 15% every day EVEN IF I DON'T USE IT AT ALL
Could someone recommend me the best battery life rom in town, even if it's the stock one?

Macmee said:
Okay I've had about enough of this. It goes down to 15% every day EVEN IF I DON'T USE IT AT ALL
Could someone recommend me the best battery life rom in town, even if it's the stock one?
Click to expand...
Click to collapse
This one is good. Best in town is hard to judge, but a lot of people enjoy the battery and stability:
http://forum.xda-developers.com/showthread.php?t=714184
Try blackbar v6.1 or stockbar v6.1. Those are the FRF91 build. I haven't tried the FRG33 but it's probably pretty great as well. The first post lists the changes from stock.

I'm fighting with battery life too, but problem is not when in standby where it uses less than 1% per hour, but actually using it (browsing) you can see battery lose 1% every two minutes... is it like that for you guys also? Really frustrating me...
Sent from my Nexus One using XDA App

ChongoDroid said:
I did something similar... I got it to warning (15%) and then erased battery stats... I then ran my my phone until it died and died again... after that it shouldn't get past boot if so then proceed to boot it into bootloader. The bootloaders white screen should drain back up battery quickly so only leave it on for only 2-3 mins. Charge it fully powered off and enjoy 15+ hours uptime!
Click to expand...
Click to collapse
Don't do this. Draining lithium ion batteries to completely dead is one off the worst things you can do to those batteries. It kills off their capacity
Charge to full, turn off phone and charge again until led turns green again, then boot into recovery and wipe battery stats.
15 hour uptime is average not excellent
Rellikzephyr
Sent from my Nexus One using Tapatalk

adambenjamin said:
This one is good. Best in town is hard to judge, but a lot of people enjoy the battery and stability:
http://forum.xda-developers.com/showthread.php?t=714184
Try blackbar v6.1 or stockbar v6.1. Those are the FRF91 build. I haven't tried the FRG33 but it's probably pretty great as well. The first post lists the changes from stock.
Click to expand...
Click to collapse
This is an excellent ROM. i've used it until i switched over to LeoFroyo. They both use the stock kernel and in my opinion i think its th best.
i also like to downclock the processor down to 800mhz with setcpu. definitely helps with the battery drain while using the phone. Non of those 925mv kernels help out in my experience.

Well I run go chat and msn constantly, I use 40 percent display, wifi, 3g, sync, etc and its about double the length I got when it was stock. Right now at 12% and I'm at 16 hours and 32 minutes! I wipe battery stats every time I flash a new radio also it seems to help
Sent from my Nexus One using XDA App

Used cm6 for ages till i tried enom's.. i got from an avg of 14hrs of battery life(cm6) to an avg of 26hrs (enom).. all with very heavy usage...

nazrin313 said:
Used cm6 for ages till i tried enom's.. i got from an avg of 14hrs of battery life(cm6) to an avg of 26hrs (enom).. all with very heavy usage...
Click to expand...
Click to collapse
This is way better battery life than what I get on Enom's, but I get consistantly 14hours to about 15% and I use my phone a LOT.

Really eh... Well il be sure to check out some new enoms! I'm feeling this nxsense too 13 hour first day not bad for porky sense
Sent from my Nexus One using XDA App

Heavy for me means more than 3 hours on the screen being on... as im constantly using my nexus... i just cant put the thing down for a min.. and yeap enom's rom with wildmonks kernel really helps the battery..

MagicMan3 said:
This is way better battery life than what I get on Enom's, but I get consistantly 14hours to about 15% and I use my phone a LOT.
Click to expand...
Click to collapse
same here on enoms. battery drain on cm6 was one of the main reasons i jumped ship to enoms

Battery life on 2.6.32.15 kernel looking good...

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

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

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

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

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

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

Wifi the biggest battery killer?

So I notice that an hour on wifi surfing the web took about 20% or more of thE battery...even playing game doesn't do that to the battery. Anyone experiencing similar thing? Anyone with 3g, is data looking the battery too?

Just keeping wifi turned on is also drains the battery for me.

Check your screen luminosity.it is the biggest battery killer

I'm running the Moto234_eVo_Carbon_V0.3 build and I've noticed that even with the screen off and the phone idle my battery drains at a pretty good rate when compared to WinMo. Any fixes for this?

for me 3g/h draw much power than wifi, almost 1.5x-2x of the wifi surfing..

Screen brightness is easily the biggest batter drain keep brightness as low as possible,
Data connection will hog more than WiFi if you are in an area of weak signal and your device is constantly searching for a signal, when your at home or work using WiFi just turn data off and switch to only 2g networks, set setcpu to screen off 245 245
Sent from my hd2 desire

Screen brightness definitely hits it hard, then wifi and bluetooth, keep em off whenever you are not using them and of course apps running in the background, grab a task killer, if its not needed, it shouldnt be running or else it will use power.

Joe Viterbo said:
I'm running the Moto234_eVo_Carbon_V0.3 build and I've noticed that even with the screen off and the phone idle my battery drains at a pretty good rate when compared to WinMo. Any fixes for this?
Click to expand...
Click to collapse
Get "current widget" from the market to see how much powers are being used. While screen off, my phone only drain about 4~7 mA...

I just came across this. Super detailed analysis of battery usage.
http://ertos.nicta.com.au/publications/papers/Carroll_Heiser_10.pdf
Sent from my HTC HD2

3g draws much more power than wifi. If wifi is available use it over 3g. But like others have said, the screen is by far the biggest battery hog.

anap40 said:
3g draws much more power than wifi. If wifi is available use it over 3g. But like others have said, the screen is by far the biggest battery hog.
Click to expand...
Click to collapse
I don't see how the screen is the biggest energy hog. When I leave my phone uncharged untouched over night and it it displays 7mah on current widget, I lose 40% battery in 7 hours.

jas0nw0ng said:
I don't see how the screen is the biggest energy hog. When I leave my phone uncharged untouched over night and it it displays 7mah on current widget, I lose 40% battery in 7 hours.
Click to expand...
Click to collapse
That's unusual...i lose less than 10% over night...even with bad reception in my room, that didn't kill my battery. Maybe you can try this to test it out. Fully charge before you go to sleep. The next morning, check your battery in setting to see what is using the majority of the battery drain during that period...this might help you find the reason...
If noting else is running, Cell standby will eat the majority of the battery power.

For me, its Angry Birds...it the biggest battey killer

Mafioso said:
For me, its Angry Birds...it the biggest battey killer
Click to expand...
Click to collapse
If you are talking about playing Angry Bird 24/7, then I understand you...but if you are serious, I haven't seen heavy battery drain while playing Angry Bird...but whose got time to check the battery stats while smashing them pigss...

anap40 said:
3g draws much more power than wifi. If wifi is available use it over 3g. But like others have said, the screen is by far the biggest battery hog.
Click to expand...
Click to collapse
You need to reinstall new build and do a task29 and format your SD your battery stats are all over at 7mA you should see 1% per hour
Sent from my hd2 desire

whynot66 said:
You need to reinstall new build and do a task29 and format your SD your battery stats are all over at 7mA you should see 1% per hour
Sent from my hd2 desire
Click to expand...
Click to collapse
Yes thats true, exactly the same in my HD2: 3-7mA = 1% an hour or less

Wow, I installed Mdeejay_eVo_Sense_v_2.3Revolution to see if this build helped on battery life. I charged my phone over night and had a full battery at 11AM (according to the meter) but by 7:30PM, my phone was completely dead. During this time, I had two 5 minute phone conversations and used GPS for 9 minutes. Other than that, the screen was not active and I didn't have WiFi enabled. Is this typical? Doesn't make running Android very practical on the HD2. This is only the second build I've tried but it's not looking very promising.

Joe Viterbo said:
Wow, I installed Mdeejay_eVo_Sense_v_2.3Revolution to see if this build helped on battery life. I charged my phone over night and had a full battery at 11AM (according to the meter) but by 7:30PM, my phone was completely dead. During this time, I had two 5 minute phone conversations and used GPS for 9 minutes. Other than that, the screen was not active and I didn't have WiFi enabled. Is this typical? Doesn't make running Android very practical on the HD2. This is only the second build I've tried but it's not looking very promising.
Click to expand...
Click to collapse
Something is wrong with your build. Try his newer build. They got a new kernel. If that were my habits, my battery would drop by only about 25%. You should install "current widget" from the market. It help you keep track of battery usage. On standby, most people and I got about 3~7mA. If you get a higher mA, that mean something is eating your battery.
Please give Mdj's New Build "Froyo Sense Revolution 1.6" that comes with his new kernel which is suppose to make battery last longer. Hope this helps.

azzzz said:
So I notice that an hour on wifi surfing the web took about 20% or more of thE battery...even playing game doesn't do that to the battery. Anyone experiencing similar thing? Anyone with 3g, is data looking the battery too?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=9276656#post9276656
i hope this enlightens you and yes wifi kills battery but it is not the biggest battery killer and wifi is more harmful to your battery life if it is not connected which means it is constantly searching for a network which sucks the life out of your battery.

I think the wifi modules on the new kernels (Hastarin > 8 & MDJ) are consuming too much power.
I usually got 5 ~ 8 mA in sleeping mode with my wifi turning on on the previous kernels, but now I got 8~60 mA and the battery status is showing that wifi is taking about 30% of the battery. Maybe this is because the 802.1n is enabled by default!

How to get 36 hours on 1 charge

Alright, so I'm not a very heavy user on the phone but I've started getting 36 hours of use on my phone. I was blown the hell away! I usually would get a Max of up to 25 or 26 hours or so before this. Even then a full 10 hours extra is magnificent!
Here's what I've got going on:
Running MIUI 2.3.23 ROM with Bulletproof Add On pack
Using Tiamat 1.1.5 kernel
Juice Defender Plus on Advanced mode
Recaibrated my batter with Battery Callibrator app
Overclocking at 1039 MHz and underclocking at 184 mhz using SetCPU
After calibrating my battery I let the battery run out completely a couple of times and voila!
I took a screenshot of my usage statistics but I can't find the damn thing now. I guess you're just got to trust me on this. This was definitely worth sharing.
All the best!
Sent from my HTC Desire Z using XDA

How many hours of screen on time did you have at the end of that charge? The longest battery life i've ever had for my phone was actually 3 days and 3 hours with 5 hours of screen on time. I'm a light to moderate user and i achieved that result with CM7.2 RC1 without any tweaks.
I really like the look of MIUI but i don't find it to be as fast as it really should be. I get frustrated by the scrolling lag that is present in the settings menu and the fact that video playback is much slower in comparison to other ROMs. Web pages were also always SO much more laggy in MIUI for me than on Sense or AOSP based ROMs. That's my personal experience, i think i've just about given up on MIUI and Sense based ROMs. I haven't touched either of those for a while now.

I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death (or Sleep of Death), and possibly dropped SMS etc.
Craig

craiglay said:
I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death, and possibly dropped SMS etc.
Craig
Click to expand...
Click to collapse
*sleep of death or SOD... i think S is for sleep not standby...
———————————————
i didn't mean to flame you, nor to mock you in any kind of way

thats quite insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o

lil-devil said:
thats quiet insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o
Click to expand...
Click to collapse
Hehe the word you're looking for is "quite" and not "quiet(as in low sound)".

Ace42 said:
Hehe the word you're looking for is "quite" and not "quiet(as in low sound)".
Click to expand...
Click to collapse
woops typo

magic_android said:
How many hours of screen on time did you have at the end of that charge? The longest battery life i've ever had for my phone was actually 3 days and 3 hours with 5 hours of screen on time. I'm a light to moderate user and i achieved that result with CM7.2 RC1 without any tweaks.
I really like the look of MIUI but i don't find it to be as fast as it really should be. I get frustrated by the scrolling lag that is present in the settings menu and the fact that video playback is much slower in comparison to other ROMs. Web pages were also always SO much more laggy in MIUI for me than on Sense or AOSP based ROMs. That's my personal experience, i think i've just about given up on MIUI and Sense based ROMs. I haven't touched either of those for a while now.
Click to expand...
Click to collapse
I'm not sure how much screen on time I had. I'll give it a check next time I'm monitoring my performance.
Sense UI has been a pain for me from the moment I started. I tried CM 7 but it had a bug where it wouldn't vibrate when I got a message unless it was in silent mode. Since I SMS quite a bit, it was quite annoying. I tried a couple of Virtuous ROMs too but they were glacial in their speed. Couldn't stand the lag.
I find MIUI to be the perfect balance between features, UI and speed. It might be a tad laggy in some places, but on the whole, it looks great, works great and doesn't give me problems in the parts I use the most. It doesn't seem quite as laggy with me as you seem to describe it. But anyhoo, for the first time since I bought my DZ, I feel like I have a good phone that I can rely on.
Thanks for your comments, man.

craiglay said:
I get 36 hours normally with the stock Sense 2.1 ROM and Unity V10 kernel. Overclocked to 1Ghz with the standard governor.
I use it quite lightly though, 10 to 20 SMS, bit of internet / Facebook and 30 mins FM radio in the morning. Also accounts sync automatically, mail picked up every hour, data always on. That was with the stock battery, with the Anker 1600 mah I get to 36 hours with about 30% to spare!
On a side note, underclocking below 245Mhz has been know to cause problems. Standby of Death, and possibly dropped SMS etc.
Craig
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WOw! Really? Stock giving 36 hours! That's pretty sweet man. Never happened to me.
And thanks for the advice on the underclocking. Maybe I should up it a notch, just in case.

lil-devil said:
thats quite insane @[email protected];;
i get about 13~15 hours of charge each time @[email protected];;
i use my phone mainly for texting and emails
no games on the phone...
i should give that a try, thats quiet insane ;o
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Go for it bro! And let me know if it works for you.
Right now, I've already hit 33.5 hours and have just hit 15% battery. And this is including a few games of Angry Birds. woohoo!

lunarplexus said:
After calibrating my battery I let the battery run out completely a couple of times and voila!
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Letting the battery drain to shutdown is not a good idea. Not good for long term life of Li ion batteries. Also, its unlikely, but possible that draining to shutdown will render the battery unable to take a charge. Fail safes on the device and battery are supposed to prevent this in theory, but in reality they don't always work. Several reports on this device of people that drained to shutdown, and then couldn't charge their battery.
The battery meter is not accurate enough to necessitate draining to zero. Just drain to 10 or even 20%, charge to full, repeat a couple times. No value added whatsoever to draining to shutdown.
I have easily gotten 48 hours+ with light usage on various ROMs, including ILWT and Virtuous Unity (which is Sense 3, and claimed by some to be a "battery hog"). This is with Bluetooth and WiFi always on, and no special battery calibration or battery saving apps.. So many things affect battery life. But my personal hunch is that the ROM, clocking, radio, and data reception in your area (and of course usage) have more to do with battery life than other factors. And with radio and reception being the really big drivers.

That's definitely very helpful. I've always heard that rechargeable batteries are supposed to be drained completely and charged at least periodically to extend its life. Your proposition is contrary to this belief but then, I don't know that much about the battery and those aspects of the device itself to be able to refute what you're saying. Best to be on the safe side though.
Current record for my battery is 42 hours as of today. I'm pretty thrilled. My device was giving at least 10-15 hours less before I made these customisations. So I feel it probably has helped. However, there are a lot of factors at play, as you said.
Thanks for the response!

lunarplexus said:
That's definitely very helpful. I've always heard that rechargeable batteries are supposed to be drained completely and charged at least periodically to extend its life. Your proposition is contrary to this belief but then, I don't know that much about the battery and those aspects of the device itself to be able to refute what you're saying. Best to be on the safe side though.
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There are various types of rechargeable batteries with very different behaviors. What you mention is known as battery conditioning, where you periodically drain to (nearly) empty and charge to full, and is recommended for older type NiCd (nickel cadmium) batteries. This is to avoid "memory effect" where the battery will remember how much was discharged in past cycles, and not deliver any more than demanded before. Kind of a "use it or lose it" principle.
Lithium (Li) ion cells (the type on most smartphones) do not suffer from memory effect. And full discharge cycles actually hurt the long term life of the battery. Charging frequently is actually the best for this type of bettery. But a couple nearly full cycles are needed to properly calibrate the battery meter on the phone.
If you want to educate yourself on the Dos and Don'ts of batteries, this website is a good one:
http://batteryuniversity.com/