Database Users

Best Battery-Saving Kernel

I'm currently using Cyanogen 6.0 RC3 with the Kernel that came with it, and I'm not too impressed with the battery - seems to be draining a lot when on stand by. Just curious on the best battery-saving Kernel out there that is stable and is great with battery percentages.

Try some of wildmonks UV kernels.

I'm also wondering about this. Im currently on kmobs #48 kernel. I have set cpu with profiles set up to under clock when screen is off. Anything else I could try. And no I don't want juice defender.
Sent from my Nexus One using Tapatalk

CM6 is a battery hog for some reason... try enoms...

lengz said:
Try some of wildmonks UV kernels.
Click to expand...
Click to collapse
x2 i've been running 2.6.35.4_SVS-950mV_CFS_AXI_720p_1113MHz_082710.zip on the latest nightlys and battery life has been very good

Just flashed the 1190mhz WildMonk's Kernel and it seems to be a little laggy, can't comment on the battery usage though (I will tomorrow).
I've been reading and people are saying >1190mhz is very stable, but I've been seeing that people are clocking it much lower than 1190mhz (at 1133mhz). I don't care about the speed, I just want my phone to last longer, and to not crash.
Should I flash the 1133 instead of the 1190?

2.6.35.4_SVS-950mV_CFS_AXI_720p_1113MHz_082710 is extremely stable on CM6 & offers much better battery life than stock kernel.
I use it with GPRS/Wifi on full time, moderate browsing (about 1 hr), 20-25 SMS's sent, 50 SMS's received & around 1 hr of talk time. Leaves me with more than 30% juice even after 24 hrs.
To do better on battery life, avoid using the live wallpapers & use a black/dark
static wallpaper.
Cheers !

seventyfivein said:
2.6.35.4_SVS-950mV_CFS_AXI_720p_1113MHz_082710 is extremely stable on CM6 & offers much better battery life than stock kernel.
I use it with GPRS/Wifi on full time, moderate browsing (about 1 hr), 20-25 SMS's sent, 50 SMS's received & around 1 hr of talk time. Leaves me with more than 30% juice even after 24 hrs.
To do better on battery life, avoid using the live wallpapers & use a black/dark
static wallpaper.
Cheers !
Click to expand...
Click to collapse
CM6 Nightly from 9/7 DOUBLED my battery life and a few others in the thread. Haven't updated since. Last night I went to sleep at 3AM with 42% after first unplugging it @ 10:30AM

FishFan319 said:
CM6 Nightly from 9/7 DOUBLED my battery life and a few others in the thread. Haven't updated since. Last night I went to sleep at 3AM with 42% after first unplugging it @ 10:30AM
Click to expand...
Click to collapse
How is it for stability?

FishFan319 said:
CM6 Nightly from 9/7 DOUBLED my battery life and a few others in the thread. Haven't updated since. Last night I went to sleep at 3AM with 42% after first unplugging it @ 10:30AM
Click to expand...
Click to collapse
D'ya have a link?
I can only seem to get back as far as 9/10... Thanks!
Sent from my Nexus One by magic electricy-bubbles flying through the air...

ganna give this a shot now. thanks... i use to use intersect ravens kernels but since froyo came out i havent tried anything. i assume i just flash this.....

http://forum.xda-developers.com/showthread.php?t=693375

Battery life on latest CM Nightlies has been very impressive with the included kernel.

i saw him tweet this... whats CM nightlies?

Pershoot is number one, no question about it.
http://droidbasement.com/db-blog/
I have brightness at 100% full-time (Love it!), I have live wall papers 100% (Love it!) of the time and have 3g always with 2 Gmail accounts push via K-9.
GPS off, BT off. WiFi off.
I have CM6.0 with this kernel (1 month old version). It is OC, UV + Extra RAM with no HD(?).
I doubled my battery life on CM6 and very easy get 1 day out of it, almost never below 30% - from 7am to 11pm. I'm at 49% (midnight) with my average use.
If I stream radio, I drain about 15% per hour on 3g. I drain about 5% to read top 20 news on Engadget app (twice a day)
This is my second kernel from this developer. I used one with 2.1 and now with 2.2. I know I'm coming again for the new one when I feel I need to.
I do not limit my usage, as I WANT to kill my battery, but can't succeed.

TailsNeon556 said:
x2 i've been running 2.6.35.4_SVS-950mV_CFS_AXI_720p_1113MHz_082710.zip on the latest nightlys and battery life has been very good
Click to expand...
Click to collapse
this is the one i have gave a try and I am very impressed.

SGS Bad Battery Life? Share your experience

I think the consensus is that our Galaxy does not really have a "good" battery life. But how bad is it really?
Can you share your experience with regards to real life in terms of % drop during active use and non-use? (pls dont give built in battery stat/usage which I think is pretty useless for comparison)
Pls try to keep to following format so that readers can gauge their phone battery life:
===================
Phone: SGS I9000, DXJG4, voodoo lagfix 3.0, non-root, 3G+background data+Sync(gmail)+Location(wireless)=ON, BT/GPS/Wifi=OFF, auto-brightness, live wallpaper, Friends+weather+stock widgets update hourly.
Stand-by (overnight): 1.46% drop per hour (i.e. approx 12% drop over 8+hrs)
Active use: 23% drop per hour (3G web surfing with Opera Mini)
===================
Phone: Iphone 3GS, 4.02, non-JB, 3G+Push/sync(gmail)=ON, wifi/BT=OFF, auto-brightness.
Stand-by: 0.7% drop per hour
Active Use: 19% drop per hour (3G surfing with Opera Mini)
====================
Phone: HTC Touch HD (WM6.1), 3G+PULL gmail (15min)=ON, wifi/BT=OFF, auto-brightness, Sense UI (all widgets manual update)
Stand-by: 0.9% drop per hour
Active Use: 25% drop per hour (3G web surfing with Opera Mini)

The problem with this, is that batteries aren't equal, some people are using possibly counterfeit batteries, and some people batteries might not be calibrated.. Maybe it would be better to run the battery down to 0%?

if having issue with your battery and your rooted just run the command to remove /data/system/batterystats.bin then the reboot command with ADB it will improve your battery big time... this should be done when the battery is low like 10%..I did this and it took it from 10% to 38% and I got almost a 1/2 more out of my battery..
when ever you flash Roms you should clear the batterystats.bin.. when you reboot the android system will make a new file.
Code:
adb shell
su
rm /data/system/batterystats.bin
reboot

Just to set up the expectations here, its not always that clearing the battery stats work.. its just a history of the usage anyway.

depending on roms etc.. i had from 1% / hour issue battery drain to barely 0.3% per hour drain both in idle / stand by of course (it lasts forever on JPK in 2G on standby for example)
don't know what really causes the 1%/hour bug
in use i couldnt tell but i feel like it uses more than other phones unless you're watching black ^^

Apple has really good standby battery consumption on all their devices but SGS Probably has among the best battery life during active use.

I know it is quite the "norm" to have a 1-2% per hour drain on standby with 3G and sync on. I had the same drop using JF3 and the later JG4 firmware. There is no diff before and after lagfix.
I am not too bothered about standby drain but I am quite unhappy with the active use drain of 23% per hour.

mib1800 said:
I know it is quite the "norm" to have a 1-2% per hour drain on standby with 3G and sync on. I had the same drop using JF3 and the later JG4 firmware. There is no diff before and after lagfix.
I am not too bothered about standby drain but I am quite unhappy with the active use drain of 23% per hour.
Click to expand...
Click to collapse
If by active, you mean typically a form of internet or communication a lot of that blame goes on the application and consumer, we can't have high expectations for battery life from a 4.0" that is producing white backgrounds. A comparison to a 3.5" device that uses an LCD screen is just flat out unfair, there are other devices that you could compare to, say Droid X, which will also have better battery life, but that also doesn't really give more of a right to complain.
I'm surprised that there isn't better access to white on black internet reading, much like how the e-readers are set up. Is there nothing, does dolphin or mozilla have anything like this?

Right now I'm using 10% per hour using it as Mp3 player. Thats what juice plotter tells me. Using OCLF ontop of Voodoo lag fix under JM8 . I'm going to flash JPM tonight and just use OCLF as Voodoo isn't working with Froyo YET. But seriously the phone flies but battery life is unacceptable. When I use 3g to browse its like 20+% a hour minimal. I blame lag fixes as voodoo is known to kill batteries

battery drain
Wow! yesterday when I went to bed I had 72% full battery on my new galaxy s and this morning I found my telephone dead with 0% battery. the phone has standard XXJM1 firmware the only thing that I did is rooting. Yesterday I have installed Navigon, Igo, and Timeriffic on this phone, I also have setcpu running there. There were no issues before yesterday though, so I assume setcpu has nothing to fo with the problem. Any one has similar issue?

Well I don't have anything like your setup (jm8 + voodoo-oc + doc superslim here) but I believe I was experiencing a similar issue and it was not related to voodoo (checked the indicators listed on project-voodoo.org)... Maybe that is setcpu. You might want to try that because I have none of the other apps you listed.
Sent from my GT-I9000 using XDA App

I recently experienced similar issues and found out about some apps that prevented my phone from going into standby state or constantly smoking CPU time. Those were Tango and SwitchPro Widget, I'm not sure about Skype. Uninstalled all of them and now everything's fine again.
I suppose you have issues with apps gone crazy, too, as a battery drain to this extend is very unlikely to be caused by a lagfix or something like that. Suggest you uninstall recently installed apps one by one and see if the situation improves. If you have some 3$ spare, consider buying SystemPanel -> hxxp://goo.gl/aUxO which does a great job of monitoring your android system for CPU huggers.
Please share your experiences.

fraencko said:
I recently experienced similar issues and found out about some apps that prevented my phone from going into standby state or constantly smoking CPU time. Those were Tango and SwitchPro Widget, I'm not sure about Skype. Uninstalled all of them and now everything's fine again.
Click to expand...
Click to collapse
I dont have any of listed apps installed, so, in my case it's something different.
Darkstriker said:
Well I don't have anything like your setup (jm8 + voodoo-oc + doc superslim here) but I believe I was experiencing a similar issue and it was not related to voodoo (checked the indicators listed on project-voodoo.org)... Maybe that is setcpu.
Click to expand...
Click to collapse
I also have thoughts about SetCPU and I revealed another problem - I setup profile in SetCPU for screen off event to limit CPU to 200Mhz and turn on powersave mode - this caused my phone stuck in sleeping mode, only battery-out would solve the issue, I have corrected this profile to 400Mhz-200Mhz and conservative mode, so far no second issue. Will see after overnight.
Well, the battery on Galaxy S goes very fast, will look for other solutions to longer battery life. I want it to be at least 2 days.

ickyboo said:
Right now I'm using 10% per hour using it as Mp3 player. Thats what juice plotter tells me. Using OCLF ontop of Voodoo lag fix under JM8 . I'm going to flash JPM tonight and just use OCLF as Voodoo isn't working with Froyo YET. But seriously the phone flies but battery life is unacceptable. When I use 3g to browse its like 20+% a hour minimal. I blame lag fixes as voodoo is known to kill batteries
Click to expand...
Click to collapse
bs
i had voodoo with 1% battery drop in standby fresh install data wipe
i had voodoo with 0.2% battery drop in standby fresh reinstall data wipe
Didn't find out the difference
the truth is elsewhere
Let's see how it goes in froyo.

I had some high battery drain issues with the 'root' part of OCLF. I uninstalled it and installed voodoo and it seems to have gone away now. Battery life is definitely a little better than my Desire.
Btw, someone mentioned running only on 2G. How do you do that? I havent been able to find any option to disable the 3G radio (messing the apn settings doesnt turn off the radio...does it?)

my opinion
SGS is the best android phone because of battery.
compared to desire sgs holds 4 times more when surfing the web.
i allways foget to disable gps, wifi, i use full screen light. and it holds 40 hours always. im realy happy with that. had g1 before and the best was if it hold from morning to evening, but if much of use it lasted in 4 hours.
my frien has desire. he disconnects charger in the morning, and connects in the evening.

i need 2 battery a day, if i don't top it up when i by my PC/laptop/car

Threads merged...

roxazz said:
sgs holds 4 times more when surfing the web.
i allways foget to disable gps, wifi, i use full screen light. and it holds 40 hours always.
Click to expand...
Click to collapse
I'm really curious on how you manage to have 40hrs battery life. My SGS only have 18hrs tops, and that's with what I classify as conservative usage. Most of the time it only lasted 12-14hrs. So please do share some tips and tricks if you have some
( oh, I've set the screen to the lowest brightness setting, I don't use live wallpaper and use a dark colored wallpaper to conserve battery)
www.iqbalaribaskara.com | Sent from my GT-I9000 using XDA app.

I think the battery life is ok on sgs. I use it only on 2g and for me it last like 4days. If i activate 3g then it laat like 2 days.
Sent from my GT-I9000 using XDA App

Best rom/kernel combo for battery life?

I know this is beating a dead horse to a pulp, but I'm going to ask any way. I have never been a typical user, and I burn my phone to the ground fast. My usage fluctuates so much testing is almost impossible.
Just asking anyone who has had the patience what they have found the best results with.
I'm currently on Super Clean 0.9 and the OTB ul 1200. Flameless responses appreciated.
Sent from my SCH-I500 using XDA App

I have the same setup that you do and it seems that I am blowing through my battery even faster with the lower voltage, which makes no sense. I also have noticed significantly worse battery life with DJ05. Not sure if you have noticed these things as well and was the reason for the post.

Im not sure if super clean 0.9 is based off of dj05 as I use my own fragmented rom with prices of everyone elses ROMS. But the best battery life I get is out of dj05 for sure. Running a random kernel that I think adrynalyne or jt posted in irc and I usually get a full day with moderate to heavy web browsing and 3-4 hours of music. But I also have outstanding 3g in both of the places where I live so that doesn't deplete my battery like most people
Sent from my phone using XDA App. With a very flame-free response sir wolven

With stupidfast 1.54 and superdark dj05 I feel like battery life has improved. I can go through a whole day, minimal use, and still have 82% battery life at the end of the day or hover around 40-50% with regular use.
its 9:20pm right now and I am still at 76%. With some browsing, music, phone calls.

Kamar234 said:
I have the same setup that you do and it seems that I am blowing through my battery even faster with the lower voltage, which makes no sense. I also have noticed significantly worse battery life with DJ05. Not sure if you have noticed these things as well and was the reason for the post.
Click to expand...
Click to collapse
I have seen the same with lv kernels both here and on my N1. possibly needing more pull for higher resource usage, but I'm lacking on the technical knowledge to make sense of that, and have had too much egg nog as of now.

ksizzle9 said:
Im not sure if super clean 0.9 is based off of dj05 as I use my own fragmented rom with prices of everyone elses ROMS. But the best battery life I get is out of dj05 for sure. Running a random kernel that I think adrynalyne or jt posted in irc and I usually get a full day with moderate to heavy web browsing and 3-4 hours of music. But I also have outstanding 3g in both of the places where I live so that doesn't deplete my battery like most people
Sent from my phone using XDA App. With a very flame-free response sir wolven
Click to expand...
Click to collapse
I somehow seem to get better life from a stock with BS apps removed, but like I said, haven't tested properly. I usually hate battery life threads but have been aggravated by 9-10 hours before death as of late. Probably just excessive usage, but I'm banking on the community to share exp. with their phones.
Flameless response appreciated.

rmtobler said:
With stupidfast 1.54 and superdark dj05 I feel like battery life has improved. I can go through a whole day, minimal use, and still have 82% battery life at the end of the day or hover around 40-50% with regular use.
its 9:20pm right now and I am still at 76%. With some browsing, music, phone calls.
Click to expand...
Click to collapse
ROFL. If I could ever put my phone down i might see better life. I like the stupidfast, but saw some minor performance delays that led me back to voodoo. Not much of an improvement on my life tho.

I have been frustrated with battery life on the sf from day one. I called VZ the other day to have the lady tell me it's normal to charge it 3 times a day due to widgets, I then proceeded to waste my breath by telling her I don't run widgets.. Her response was well they will still drain your battery.
I don't want to un root my phone just to take it in to a store and get the battery replaced and apparently calling them won't get me any where either
Sent from my SCH-I500 using XDA App

I use blue tooth + 3g for an hour drive to work and since the voodoo 5 kernels with the ul settings I have been at 85+% each day from the normal 75+%. So my battery life has improved greatly! Keep up the awesome work devs!
Sent from my SCH-I500 using XDA App

I get pretty decent battery life out of the DJ05 OTB Voodoo sv combo (around 7 hours with periods of heavy usage). I also use juicedefender but I've heard it cant control the CDMA radio properly (ie disable data and etc) but it appears to lengthen my battery life (could just be a placebo effect however)

I had the same problem....crappy battery life with DJ05 and I tried everything from wiping to endless kernel/rom combos. In the end I found out standby was killing me. Like sometimes an hour would pass without me touching my phone and it would drop 5%. Someone suggested dialing *22899 ( I think that was it) and it was instantly fixed. Now idle I drop maybe a percent every 3 hours.

What I have found is the governor does a great job of managing battery use of the CPU in conservative mode. My best combo is jt 1129 novoodoo kernel paired with black hole 2.1+ (I noticed no significant difference between 2.2 and 2.4 for battery life). My usage is fairly high, 3-8 hours of display on each day, running light apps (hardly any music, never games, synched email). Some of my numbers are posted.
Counter to intuition, I can't seem to get aggressive undervolt kernels to give me an improvement. I think it is because the minimum processor has to be kept a little higher to sustain the underlying, so on average more offline drain. This makes no sense though, because when I look at it in os monitor, the governor seems to be doing fine.
Speculating here is pretty dicey, because I have a hard time doing a lot of testing of something that doesn't seem to work. I use my phone a lot, and it is hard to justify having 40% less life span when I know of better combos.
In summary:
* I have NOTHING to say about voodoo kernels.
* negligible difference from leaving wifi and GPS and live wallpaper on.
* negligible difference between dj05 roms.
* running a custom rom gives a noticeable improvement betrays simply running ADW on to of touch wiz
* stock kernel is pretty darned good for battery life, competitive with best kernels.
* the cpu does great self management stock and mostly runs at 100 mhz for my use
* certain under volt kernels appear to under perform during non intensive tasks, but it is hard to be certain.
* bluetooth matters, only turn it on when driving or planning to talk; it does eat battery.
* leave brightness at auto or lower, pick a dark theme wherever possible. Display is the number one eater of battery. White sucks your life.
* there isn't a lot you can do to optimize battery life. Retraining the battery either works or it doesn't, but it isn't really necessary for most system or kernel changes and should be done infrequently.
* there are a few ways to eat battery fast.
* use a theme that shows battery in 1% increments, great for sanity!
* rule of thumb display on uses 4.5 times the power of display off for light apps. -- So theoretical max life on this phone is around 8.5 hours with display on, 42 hours with display off. (typical is about 4.5 hours of display on before I charge it) and yeah I should check my math... I have never had a practical test anything close to 8 hours. I would expect about 6.5 if I never locked it and kept it running in a dark app, with little data and sound use. I think a review I read got about 7.5 hours of playing avatar on loop (probably tmo galaxy s)- a result I found mystifying at the time. My personal best is about 5.5 display on.
Swyped w/ XDA App. When in doubt, jingle.

That was very informative.

I'm on Blackhole 2.4 and I tried one of the Stupidfast undervolted kernels (v1.5.4) for a week and although the battery useage improved a bit, it was somehow affecting my phones wireless reception, wifi and mobile signal. My phone usually flies thru webpages at home when it gets wifi yet it was crawling when I was on that kernel. My phone would randomly freeze as well. I just switched back to JT's 12/12 DJ05 kernel and eventhough battery useage is less desireable, I got my wireless reception back. I also just switched to a dark wallpaper, used to have an ocean / blue sky image as wallpaper. I think those beautiful/fancy weather/clock widgets affect battery useage on how often it updates itself. I switched out of beautiful widgets to gTabSimiClock widget, see if that makes a difference. I like its more simpler look.

Looking for some suggestions on ROM's or apps

Have a EVO now with Sprint Lovers ROM on it. kinda cool I suppose. However here is my big thing. I use my phone mostly for email / some texting and a boat load of talking. SOmetimes I will be on a conference bridge for 2+ hours straight. problem is I seriously have to have a charger handy all the time. Cuz I can pull off my phone from the charger after charging all night and loose 1-4% battery life right away. Not sure what thats all about.
I just last night did a battery calibration and installed setcpu (paid version). and this seems to have helped some. but not where I'd really like to see it.
I know with using on a average-high day 500+ minutes during that day. it's not going to last me all day. thats fine. but having to plug it in before lunch time to recharge it, seems a little to much for me.
I am open to any and all suggestions on what/how to fix this. new ROM, software hacks etc... or both.
Software I run:
Flex dialer (paid ver)
built in email client (checks 2 different account every 15-30 minutes, which i know is a battery drain)
text (average light use)
CSIPSimple (sometimes)
web browser ( once in a while)
Thanks for the help!

Try an aosp rom like CM7 or Miui they get better battery life than a sense rom.

Best battery life I've ever gotten was with the Deck rom 1.2.1 and the savage zen BFS SBC kernel version 2.2.1. If you couple that with an extended battery you could go for days without charging.
With a year old stock battery and that setup I had pulled 20-36 hours (I know its a broad range, but 20 hours was the low) depending on usage.

completetech said:
Cuz I can pull off my phone from the charger after charging all night and loose 1-4% battery life right away. Not sure what thats all about.!
Click to expand...
Click to collapse
When your battery reaches 100%, your phone stops charging and lets the battery drop down to 90% before it will kick in again.

any AOSP such as CM, Decks, omfgb, miui.us, ect. coupled with tiamat or savagezen SBC kernel you will be free of charging worries & smiling.

ROMs
Swagged Out Stock, Lithids Freedom kernel universal, either more or aggressive. Pretty good battery.

I get 8 hrs of heavy use like you with bt on.
MikG 2.55
More freedom kernel
Uc to 800 mhz with setcpu
Sent from my PC36100 using XDA App

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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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!
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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/