Database Develop

[Q] Longest battery life ROM?

Hi,
I'm looking for a FroYo 2.2.1 custom ROM which has the longest battery life.
I'm currently using CyanogenMilestone and I can't use my phone during a full day (even in sleep mode).
I don't care about smoothness or anything else.
Which one is the best?
- The FroyoMOD
- Cyanogen Milestone
- Milestone MIUI
- other?
Has anyone tried The FroyoMOD and/or Milestone MIUI and can tell me how many days it lasted?
Thanks.

the best is
motofroyo sense but it bit sluggish
then MIUI
then others like froyo mod n hono froyo

Cronos lasts for a day and a half maybe... I would consider it Cyan-lite hahaha
Honestly though, the eclair mods are much better on battery life. I run TelusLite V5 and I get around 50 - 60 hours on normal use.

Hi. As you said you're running custom 2.2.1. You did reboot after charging (no matter of power or usb)? The 2.2.1 kernel has a bug that prevents it going into the sleep correctly. This can be avoided with rebooting after disconnecting from charger.

greglord said:
Hi. As you said you're running custom 2.2.1. You did reboot after charging (no matter of power or usb)? The 2.2.1 kernel has a bug that prevents it going into the sleep correctly. This can be avoided with rebooting after disconnecting from charger.
Click to expand...
Click to collapse
Didn't know that.
Thanks guys, I'll try MotoFroyo Sense and MIUI and then I'll let you know.

[Q] 2.2 Froyo update, battery life lost

I have not yet updated my Captivate to 2.2. Reading posts in regard to the update I am very bothered by a common complaint that battery life has just died. My Captivate has excellent battery life using it fairly heavily over a 1 day period. I charge it every nite. Also, my GPS is workng fine in 2.1. So am considering not updating it due to the problems I am hearing about.
Anyone else have input on battery life after the update??

I went from STOCK 2.1 to Cognition 4.1 (built on Froyo 2.2) and my battery life is about the same. My usage varies wildly from day to day, but as best as I can tell, overall battery consumption is about equal.
I wonder if the people complaining about battery life have set up their phone "post-update" with different apps or turned on "apps syncing background data"...

Battery life did reduce on 2.2 but it is obvious in my point of view. But its not too bad either.

it's about the same, i upgraded to stock 2.2, feel no difference on the battery life. moderate usage last mine for about more than 24 hrs, u should update to froyo for you to experience it.
Sent from my SAMSUNG-SGH-I897 using XDA App

SnackCracker said:
I went from STOCK 2.1 to Cognition 4.1 (built on Froyo 2.2) and my battery life is about the same. My usage varies wildly from day to day, but as best as I can tell, overall battery consumption is about equal.
I wonder if the people complaining about battery life have set up their phone "post-update" with different apps or turned on "apps syncing background data"...
Click to expand...
Click to collapse
I upgraded Stock 2.2 end of Feb and noticed a big drop in my battery life the first week. But just reading above, i did turn on "apps syncing background data" so i think that's my problem. Just turned that off so we shall see...

Let your phone go through a week or so recharging cycle before judging its battery life after a ROM flashing. You just lost all your battery stats when flash a new ROM. Your phone/OS has no clue how your battery will operate until it has time to learn or you manually calibrate it.
For what it is worth, my battery life is about the same or slightly better than leaked 2.2 ROM as well as 2.1 ROM. No big changes.

My battery has been about the same since the 2.2 upgrade. At first it felt like my battery was draining quicker but I also noticed I was playing with more phone more. The screen is the biggest power drain on the phone so just playing with menus and looking at new settings can cause a small dent.
Give it a week or two after upgrading and you'll notice it'll be about the same. Unless of course you have more accounts or programs syncing data in the background.

Why upgrade to 2.2
Thanks everyone for the input. The more I read and hear the more I am leaning toward not upgrading to 2.2. On different forums I am seeing and hearing problems with battery life and some saying about the same battery life. Also, seeing GPS not being fixed or going from working ok or good to not working so good. Right now my phone does everything I want, GPS works really good, email works fine, internet works fine, battery life is outstanding, mp3 works great, screens all are clean and to my liking, I have an easy work around for turning off 3G and one tap returning my volumes to normal after using a USSD code.
REally cannot see any advantage to upgrading and risking introducing a problem I don't need. The list of new features really does not thrill me.

gstreff said:
Thanks everyone for the input. The more I read and hear the more I am leaning toward not upgrading to 2.2. On different forums I am seeing and hearing problems with battery life and some saying about the same battery life. Also, seeing GPS not being fixed or going from working ok or good to not working so good. Right now my phone does everything I want, GPS works really good, email works fine, internet works fine, battery life is outstanding, mp3 works great, screens all are clean and to my liking, I have an easy work around for turning off 3G and one tap returning my volumes to normal after using a USSD code.
REally cannot see any advantage to upgrading and risking introducing a problem I don't need. The list of new features really does not thrill me.
Click to expand...
Click to collapse
2.2 ROM is a big step forward, not backward, IMO. Sure it didn't solve GPS issue but it is not making it worse either. GPS issue is purely hardware issue. If you have a good one, it doesn't matter which stock firmware you use.
I just can't see any disadvantage for upgrading (other than slightly more difficult to root or unlock, but not impossible). Battery life thing is as I mentioned above. You will see all kinds of complaints (either dain too fast or too slow) after a new firmware comes out, any firmware. You don't know what you're missing until you upgraded.

I noticed a big improvement in battery life. Sometimes with light use it will last up to four days, whereas before with 2.1 it would putter out after maybe two days.
GPS isn't fixed, but drop one of many GPS fixes in and it will get somewhat normal performance.

Wifi sleep policy
You may also want to check the Wifi sleep policy after the upgrade to Froyo. In my case, the default was "Never sleep". Changing this to "When screen turns off" improves battery life on 2.2, as it does on 2.1.
Just my $.02 worth.

foxbat121 said:
Let your phone go through a week or so recharging cycle before judging its battery life after a ROM flashing. You just lost all your battery stats when flash a new ROM. Your phone/OS has no clue how your battery will operate until it has time to learn or you manually calibrate it.
For what it is worth, my battery life is about the same or slightly better than leaked 2.2 ROM as well as 2.1 ROM. No big changes.
Click to expand...
Click to collapse
I'm on stock 2.2 since the day it came out. My battery life is actually trending worse day-by-day. I did a full battery clear/reset this weekend and after 4 days I'm finding battery life is not improving at all. The degradation from stock 2.1 is significantly noticeable to me.
For the first couple of days post-update it seemed actually to be better, but got worse and worse, to where I was lucky to find the phone working 12 hours after disconnecting from the charger @ 100% ... even if I hadn't -touched- the phone during the day. My applications loaded are virtually identical to before.
I did have Background Data on, so I've just disabled it, but was this option not in 2.1? I know that Google Voice, etc, were doing background syncs in 2.1.
It can't be WiFi, as for the last 2-3 days I've kept WiFi turned off. However just for sanity I did adjust the sleep policy.
I'm wondering ... my battery woes seemed to start when I hooked up my Microcell. Could having a strong 3G signal so close to the phone actually be causing problems?

jahfry said:
I did have Background Data on, so I've just disabled it, but was this option not in 2.1?
Click to expand...
Click to collapse
it is the same as in 2.1.
I'm wondering ... my battery woes seemed to start when I hooked up my Microcell. Could having a strong 3G signal so close to the phone actually be causing problems?
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Click to collapse
That might be your problem. I don't know. I know 2.1 doesn't work very well with microcell either.

Yep. I'm pretty convinced it is the microcell now. Phone works great with it from a call/data/signal standpoint. However after unplugging my microcell last night, charging my phone to 100%, and then letting the phone discharge normally with no microcell ... I'm now 10 hours later and have an almost full battery.
Sad, because our reception here is so spotty that we lose calls and data regularly without the microcell. My wife says her phone charge has been pretty normal, so I'm getting ready to move the cell away from my desk and see if distance helps the story.
So, as far as this thread is concerned, my results for 2.2 and battery life are great ... better than with 2.1 ... just don't use it with a microcell.

Froyao 2.2 Battery Usage Dillema
I see no significant or excess battery drain while riding the KB1 over the JF6.
Just a thought for those experiencing excessive or significant battery drain. KB1 loads some new features and new additional bloatware that loads on boot and runs as a service, process and both.
If you're familiar with poking around your system settings and understand what doesn't need to always be running in the background, or what doesn't need to load on boot, you can simply kill the process and even alter the way a certain application handles on boot.
By killing many unneeded or unwanted processes at boot time, it will significantly save you hours upon hours of battery life in the longer scheme.
Another FYI, Lithium Ion batteries have memory. You need to train or retrain the batteries memory over time in order to sustain a longer life for it.
Tips:
Don't continually through the charger on your device after minimal drainage. Let the battery run down before fully recharging it again.
When flashing to another ROM wipe your battery stats.
When flashing any new code to your device - a few forced charge deaths to purge the battery and reset the memory again prior to recharging may be a good idea...
Hope this helps...
Peace-
Liv33viL

Battery performance across ROMs

Hello all-
I wanted to start a thread to discuss battery performance across the various ROMs available:
1. Nookie Froyo (including NookieComb based on Froyo)
2. CM7 (Latest build)
3. Rooted stock
1. What ROM do you guys use and how is the battery performance?
2. How do you maximize battery performance? Kindly list the settings if you can.
Thanks,
mg
(Post edited)

Phiremod is completely based on CM7,it's just a themed version. So I actually doubt there's any difference.
I have a question too. Has anyone tryed battery calibration? I'm not sure this app supports tablets though.

Qwenjis said:
I have a question too. Has anyone tryed battery calibration? I'm not sure this app supports tablets though.
Click to expand...
Click to collapse
I never tried it but that would make only your battery readings more accurate. IN CWM its also possible to recalibrate i heard. Never tried it though.
Most ROMs have allready been tweaked pretty much. I'm on Nookie Comb (2.2) however just because there is still a bug in gingerbread (w/ or w/o CM7) preventing 'deep sleep'. So the device is still active when you press the power button. That cost me about an 2% and hour equals 48% in a whole day. (just idling). They (devs) are looking into it ATM.
Honeycomb preview also has the deep sleep bug.

Qwenjis said:
Phiremod is completely based on CM7,it's just a themed version. So I actually doubt there's any difference.
I have a question too. Has anyone tryed battery calibration? I'm not sure this app supports tablets though.
Click to expand...
Click to collapse
In the past, I've just cleared the Battery Stats in CWM when flashing CM7. Be sure your battery is fully charged for the most accurate readings.

Ah, that's why CM7 drains battery. Did not know about that bug. Hope they fix it soon.

I did an over night battery test with only the released CM7 on the SD card and it was draining about 0.8% per hour using the built in battery meter. I don't know how accurate a test this is but the result was better than the 2% drain that I saw posted else where.

[Q] MIUI ROM doesnt go to sleep!!

Hey All,
My Milestone running MIUI 1.6.4 doesnt go to sleep when I turn the screen off. This is leading to poor dormant battery life. The battery drops by about 10 percent for every 1 hr, when the phone is not in use(ironic, cos when the device is actively used, MIUI seems to have the best battery life). I checked the built in battery usage chart, and the thread that keeps the device awake is Android System itself. Is this a known issue? and are there any solutions available?

Had same problem!
Had exactly same problem a couple of months back and posted question here but no response.
I was able to initiate deep sleep but had to do various things such as reboot time after time until successful, open up a variety of apps, use a task killer, etc., to try and resolve problem.
I was using CM 6.0 initially and even updated to the latest update of that build by wiping everything but all to no avail. I was beginning to think that it was a hardware problem when I flashed an entirely different rom - MIUI 1.2.25 and hey presto problem resolved.
I suggest that you may have to do likewise and try another rom entirely. BTW the battery life of 1.2.25 is very good indeed. I also recommend using CPU Spy found in the market and/or CPU Stats found in the Themes/Apps section of this forum to monitor deep sleep status.
Hope this helps

uptheironsrafi said:
Hey All,
My Milestone running MIUI 1.6.4 doesnt go to sleep when I turn the screen off. This is leading to poor dormant battery life. The battery drops by about 10 percent for every 1 hr, when the phone is not in use(ironic, cos when the device is actively used, MIUI seems to have the best battery life). I checked the built in battery usage chart, and the thread that keeps the device awake is Android System itself. Is this a known issue? and are there any solutions available?
Click to expand...
Click to collapse
for best battery life use cronosginger 1.4.0

Where are you getting the milestone 1.6.4 build?

magiman7 said:
Where are you getting the milestone 1.6.4 build?
Click to expand...
Click to collapse
1.6.4 ?
last ive seen is 1.6.3
http://forum.xda-developers.com/forumdisplay.php?f=670

rrohanjs said:
1.6.4 ?
last ive seen is 1.6.3
http://forum.xda-developers.com/forumdisplay.php?f=670
Click to expand...
Click to collapse
He's probably talking about the 6-3 build released on 6-4 by Lalit or Eybee.

Get the update. 1.6.10.
find it way better and stable

Kulch said:
Get the update. 1.6.10.
find it way better and stable
Click to expand...
Click to collapse
waiting for eyebee's version wud b a better choice .. his update shud come by monday ..

Since last flash I have had absolutely bullsh!t awesome battery usage :-) *READ*

Ok...this is going to sound completely outrageous! It seems outrageous to me even I have never had this good of battery consumption ever! The phone was purchased 16/08/10 and has retained the standard battery all this time and had various Samsung ROMs on it. Mostly DarkyROMs that have improved battery quite considerably. It currently has its first stable ROM of ICS since I started flashing ICS from just prior to RC1. The ROM is a bit of a mix-matched frankenstein build of a ROM by me originated from MyICS and OneCosmis RC3.1. I have recently experienced allot of issues (including very poor battery drain) prior to this last flash and so have many of my users...actually most jumping **** (and I don't blame them).
My last ROM flash seemed to stable and go through perfectly, I was running with my own 2.0.1 and was about to release this ROM (that I'm currently on from a system dump) as a 2.2.0 version update for everyone else.....however I have held back because of the announcement of RC4.....so any of the improvements I haven't released. The install procedure backs up battery stats so as not to need re-calibration and has done so for the last 3 or 4 install. I am running the latest platypus kernel made for RC4 though
Anyway the last time I had my phone on any decent charge 22hours ago. It's currently 10.40pm EST and phone went on charge about 12.30pm lastnight. Since then I have had data left on (something I wouldn't normally do...I was used to renaming APN prior to ICS) and wifi on* (granted I have latest Juice defender ultimate)
*set to trained locations to auto-on within 250m of known wifi access point and disable 3G when wifi connected
I have gone the whole day today, with a small amount of internet (damn genie widget gets me every time with cool interesting things flashing up on the screen lol) and moderate phone usage; texting and a hand full of 10-15min phone calls....nothing out of the ordinary.
I plugged the phone to USB to transfer some things from work and it was plugged in for approximately 15-20seconds. I use multi-mount SD card app (I have included the lite version in my ROM) and allows for fast transactions and also to be able to use the phone whilst connected etc (read up about it). And I did the same here at home to transfer the things off again. It has remained sitting beside my PC untouched (unusual cause I like to fiddle) for the last 3 hours...and decided to pick it up and glaced at the battery 90%. Ok so I waited another hour and glanced again and STILL 90%.
Is there something weird going on here that I should know about? My phone has never been this good even if I left it completely on standby and in flight mode it would have eaten more than that! It seems almost stupidly impossible.
Fill me in on your take of this situation? Happy to do a complete system dump to try figure this sh!t out cause I made so many mods last ROM update I wouldn't know which one is contributing or if all or none?
edit: included more information

It's now 2:20am I am going to bed. My phone is 86%
A drop of only 4% in nearly 4hours. 1% per hour is not too bad

How do you handle synchronization, and why kind of tweaks do you perform with juicedefender?

heh i know what you mean
Im using as well icssgs rc4 (pulled) for 3 days, and right now i have 10% left after 29 hours of using my phone as wifi, downloading, sync, calls, sms and some music, all i can say is that rc4 +platypus kernel is the beast for the battery. my phone never lasted for such a long time, even on rc3.1 it used to die after 18 hours of being idle.

Reporting
7am 77%
10am 62%
10.55am - poor signal and market prompted to download an update for LinkedIn battery has plumited to 23%
36hours use and still 23% battery is pretty good. At least the resil
I will be making a deodexed version of RC4 sometime soon with a few extra bonuses ....however it won't be all that special as I have been giving away my secrets everywhere on the forum to help others on any ROM (not just my own) so anything included in my next release will be old news lol
Juice defender? Tweaks? I am not sure what you mean? You mean what are my settings?

Ok...wtf? Battery is climbing back up again now? That is something that has never happened before! Im on 26% again

realy ? ))

Offfical time of death 4.34pm EST. approximately 40hours after full charge. I am stoked with that.
Edit: I will be making a donation to Platypus Kernel right now

Can you tell which rom you had before flashing rc4 and another question are you experiencing any other problems with the rom like sd problems because im considering to go rc4 too.

dimon28 said:
Can you tell which rom you had before flashing rc4 and another question are you experiencing any other problems with the rom like sd problems because im considering to go rc4 too.
Click to expand...
Click to collapse
I am still running RC3.1, I am just using the RC4 kernel
I am in the process of developing my own RC4 ROM based off this RC3.1 (my own version of it anyway) that is the first ROM I have that is stable. All versions of my ROMs prior to this have been very unstable. ROM is still odexed so that will be my first point of call and then repackage and get it up and running.
I am in the process of compiling some java code for wifi calling on vibrant though so I am too busy to even start on my ROM