Database Users

Answers on battery life.

I've been seeing a lot of posts on crap battery life around here, and I was chasing my tail about some of them as well, following a lot of misinformation even by senior members. I think I have a good handle on it now, and picked up most of these tips from these forums, so I'm not taking credit for these ideas, just collecting them in one place. Some of my suggestions assume you have root and Rom Manager (see the Tips and Tricks sticky thread on how to get them).
1. If your battery drains in less than a day on standby, you probably have a bad flash of the JI6 modem (either from the OTA update or from a ROM). Flash the JI2 modem from here "www dot teamwhiskey dot com/home/downloads". If the flash fixes it, you may try going back to JI6 if you want, and it may stay fixed. I went back to JI2 and didn't bother going back to JI6, but it has worked for others. With JI2 and 3G on I get just over 24 hours in normal usage.
2. The #2 battery drain on standby is 3G. I turned it off (Settings/Wireless/Mobile networks/Network mode/GSM only) and my phone lasted for 40 hours on Edge with light usage (few phone calls, messaging, quite a lot of web surfing, 2 hours of podcasts). Didn't even feel too slow (I get 140kbps on edge). Can anybody suggest a really good widget for turning 3G on/off? I use the 2G-3G OnOff widget by Curvefish. It's not one-click, it's just a shortcut to Mobile Network Settings, but it works. Note that sometimes it takes a while for the data connection to re-establish after you see the 3G or E icon.
2.5. WiFi always on is a huge battery saver! It keeps 3g off. I can easily get 3+ days with light usage on my home wifi. Settings/Wireless and Network/Wifi Settings/Menu/Advanced/Wifi Sleep Policy/Never.
3. Don't need a task killer. I wasted all my time killing tasks trying to chase down my crappy battery usage, but since I fixed my modem and turned off 3G I know that the 3-5% CPU usage at idle does not hurt my battery. Taskiller for me was actually hitting the CPU constantly, lightly but for no reason, so I got pissed and uninstalled it.
4. Install a CPU usage monitor like Usage Timelines. It sits in the notification bar, very easy on the battery, but tells you if you have a rogue app pegging your CPU and draining your battery. These are the only apps you should be worried about killing. Astro File Manager has a task manager that shows CPU usage for each app, so you can kill the rogue one. I shoot for about 5% cpu usage at idle (at 200mhz - at 100mhz it would be a bit higher).
5. The app Autostarts lets you disable any app from starting on boot or other events like connectivity changes. This is not strictly necessary unless you have a lot of crap apps installed on your phone and they like to start themselves and waste CPU time behind your back.
6. If your battery reads less than 100% as soon as you unplug it from the charger fully charged, or your battery meter sits at 100% for a long time after you unplug it, you can recalibrate your battery meter. To recalibrate: 1) charge your battery to full, 2) unplug, 3) reboot into Clockwork Recovery and 4) Wipe battery stats.
7. There is No Such Thing as "battery reconditioning" (for all intents and purposes). The above procedure only RECALIBRATES you battery METER to read on a more linear scale between full and empty. It DOES NOT make your battery last longer, period. Whoever tells you that is a moron. If your battery is dying in 6 hours, doing any amount of calibration will not make it last longer (I've tried).
8. I wouldn't be too worried about undervolting, overclocking, kernel tricks and superawesomefast ROMS. The CPU drain at idle is so minuscule (as long as you don't have rogue apps) that those things make precious little difference. Like I said, the biggest drain is 3G and other radios. Having said that, I run Bionix 1.9 with the JAC kernel. It drained my battery in half a day at idle until I flashed the JI2 modem. With JI2 it suddenly started lasting over 24 hours, and once I turned off 3G, over 40 hours. I like this ROM and see no need to switch, it's very smooth. But you should be able to get similar battery life on a stock Vibrant.
9. I have GPS on, WiFi never sleep, auto-brightness, and a few widgets on like Weather and friend updates. I have no fancy settings, literally just turning off 3G (or wifi on, which is the same) got me 2-3 days. So I wouldn't waste time fooling around with magic settings (other than wifi never sleep), battery saver apps, etc.
10. If your screen is on all the time and you're playing games nonstop, you're draining your battery quicker than any of the things I mentioned above, so you probably don't care. In that case an optimized ROM/kernel is probably your best bet, especially JIT in Froyo. You can probably save on screen brightness as well.
If you guys have any other tips I'd be glad to add them to the list, but I hope this gives you an understanding of where your battery life is going. Basically: bad modem, 3G, or rogue apps.
Also, I hope this will put an end to trolls calling people whiners for complaining about battery life and saying unproductive **** like "you're a whiner" or "the Galaxy S is just a battery hog, live with it". It's not, you don't have to live with it, nobody should have to, here are your solutions.
Good luck.

A few things I do to help with battery life is:
Disable Audible touch tones
Disable Audible selection
Disable Haptic feedback
Disable SD card notifications
Set animations to NO animations
Uninstall media hub if you dont use it
Disable auto brightness adjustment
Disable power saving mode
I disable the last 2 and just swipe the notification bar to adjust brightness. Granted these items really only work when using the phone but I can go about 2 days of normal use without a charge believe it or not.

yeah disabling 3g has always been the best option for people really, really concerned with battery life.
But it's kinda hard to tell people not to use 3g on their brand new 3g capable devices.

You may want to add how to test if you battery is bad. If you use you phone repeatedly while it its plugged in you risk overheating and damaging your battery. Signs that unitas is the case are very quick drain and long (7 hours) charge times. You can easily test and see if your battery its damaged. Remove it from your phone and place on flat surface (e.g. Counter top) try spinning the battery. If it rotates easily and quickly you battery is bulging, this is a sign of damage. Time for a new battery.
Sent from my SGH-T959 using XDA App

Answer to #2-
Use APNDroid. Comes with a widget.

Thanks to the OP and other contributors in this thread.
I flashed a ROM with the ji6 modem and battery life has been noticeably ****ty since. Example - this morning I unplugged my phone at 7:30 am. 100% charged. It's 10:21 am and my phone is at 75%
In the last 3 hours I browsed the web for 10 minutes while having my coffee and a smoke before heading out to work. Blue tooth was on for my drive, and I've sent 2 text messages. Aside from that my phone has been on stand-by since I unplugged it 3 hours ago.
I'm going to try to flash back to ji2 tonight as the battery usage was definitely better. Will also look into the 3G thing.
Thanks again.

You forgot to mention the two DRM and one downloader services that run resident on JI6.
These were the cause of my reduced battery life after I upgraded. Killing & removing these processes restored my battery life back to normal

blink55184 said:
Answer to #2-
Use APNDroid. Comes with a widget.
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I just tried this - switching 3G off works fine, but switching 3G back on didn't work for me. I had to re-boot to get 3G back so this is a no-go in my case.

I know how to kill the processes for the DRM and downloader but how do I remove them?

OP thank you for putting together the list. But I've never seen the point of doing all this. Its like getting a lamborghini and only driving 40mph because it you don't want to waste gas, whats the point? Either get a second wall charger to charge at work or a car charger. Heck even get a second battery if you are out for a long period of time.

speoples20 said:
Its like getting a lamborghini and only driving 40mph because it you don't want to waste gas, whats the point?
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You don't need to disable 3g.
The point of my post is to avoid people wasting their time with tweaks that have little to no effect on battery life. I'm telling people that they're wasting time killing apps and optimizing cpu usage and twiddling their settings when the radio drains most of their battery on standby anyway.
Meaning no matter what changes you make, you can only hope to improve your battery life by a tiny amount, because any other effect is overshadowed by 3G.
Put another way, you will NEVER get battery life much longer than a day if you're on 3g, so you're wasting your energy trying all kinds of tricks.

blink55184 said:
Answer to #2-
Use APNDroid. Comes with a widget.
smutek said:
I just tried this - switching 3G off works fine, but switching 3G back on didn't work for me. I had to re-boot to get 3G back so this is a no-go in my case.
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For me the widget did nothing. But it seems like it's not even supposed to turn the 3G radio off, but ALL APN network traffic. Did I miss something? It won't save battery power as long as the 3G radio is on.
I went back to the 2G-3G OnOff widget by Curvefish. It's not one-click, it's just a shortcut to Mobile Network Settings, but it works. Note that sometimes it takes a while for the data connection to re-establish after you see the 3G or E icon.

Back to my Moto Startac
While i understand the idea behind this thread, your conclusion is simple.
If you use the phone as a smartphone, it will eat up your battery no matter what.
I personally go through two batteries and some a day. (they cost about 12 bucks in ebay, and they work just fine)
The price for saving battery is not using the phone, and having a 400 bucks phone just for show off is just silly at least.
If you have a phone like this is to use it. At least you can change the battery not like some other devices......

I understand that task killer is useless, but do any of you use Autokiller (memory manager) ?

That's kind of a redundant question because even if you do not use the app, your phone is still performing the functions. The app just adjusts the settings. But to answer your question, using a memory optimization tool such as AutoKiller is 1000% more efficient than using a Task Killer. I don't think it effects battery much, but works wonders on performance.

There's no 3g-off widget because apparently in Android there's no way to do that through a direct command. I also use the Curvefish widget, and you are absolutely right about turning off 3g to save battery. I normally do so when I'm asleep or if I'm sitting at my desk next to a computer (why do I need fast data on my phone when I have my computer right here?).
The other thing I would recommend is AutoStarts. There are way too many apps that open themselves up at bizarre and inappropriate times. Autostarts is an easy and painless way to see which apps do this and keep them from opening.

gagb1967 said:
While i understand the idea behind this thread, your conclusion is simple.
If you use the phone as a smartphone, it will eat up your battery no matter what.
I personally go through two batteries and some a day. (they cost about 12 bucks in ebay, and they work just fine)
The price for saving battery is not using the phone, and having a 400 bucks phone just for show off is just silly at least.
If you have a phone like this is to use it. At least you can change the battery not like some other devices......
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+1000
Great battery life comes to people who hardly use their phones. Guess I need to get a netbook. Will prolly get a netbook or 3g laptop + skype and ETF my phone soon. These battery woes are show-stopping.
Sent from my SGH-T959 using XDA App

Losing 4% an hour on standby when you're not using the phone is unacceptable. Samsung screwed something up with the JI6 update. Most people think it's because of the stupid Media Hub. I think they are right.
People are not complaining about the poor battery life from using the phone. They are complaining about the slow battery drain even when they are not using it. ~4% an hour adds up fast. Vibrant is supposed to have 450 hour (18 days) stand-by time. That's what is rated. But people are getting 24 hour (1 day) stand-by time after JI6.

Yellow C6 said:
Losing 4% an hour on standby when you're not using the phone is unacceptable. Samsung screwed something up with the JI6 update. Most people think it's because of the stupid Media Hub. I think they are right.
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I'm not ready to sign off on this idea. For me simply flashing JI2 over JI6 fixed it. For some people flashing JI6 back over still left the problem fixed. I still have those processes running on JI2 and my battery life is fine.
The other reason I'm not ready to recommend wiping out those DRM processes is that apparently it stops the bundled Avatar movie from playing, and might affect other things that users may get pissed about. I've read that killing the downloader process people are talking about kills the market. So I really wish those people advocating that solution would figure their **** out and provide exact steps for the fix (right now their posts are really vague like "kill the processes that are named something like this" and not well tested; in all my research I didn't find the exact name of the "downloader" process).

Is it possible to flash the ji2 modem without root? Wishful thinking, I suppose..

My experience with GREAT Galaxy S battery life!

Hello Everyone!
I made this thread hoping I can shed some light to those getting very poor battery life. I was also getting very poor battery life, till I went and exchanged my phone for a new one. If you're getting very poor battery life (even after wiping your phone or installing a clean firmware), there is definitely something wrong with your phone or your battery.
I own a i9000m bought from Wireless Wave. I've unlocked the phone and am now using it on Rogers.
My previous phone, I was draining 25% of my battery to just get through 6 hours of standby while I slept. I had juice defender on and autokiller memory optimizer. I turned off all syncing and didn't even use a live wallpaper. My phone was rooted and also had lagfix (which I soon removed). One thing I do remember doing is not charging to 100% when I first got the phone. I did accidentally let it drain to 0% cause I had to use it right away.
After exchanging for a new phone and charging it to 100% right away, I was getting the following results. I have juice defender and nothing else. I changed my band to be WCDMA only. I even have a live wallpaper on. Last night my phone idled for 9 hours and it only drained 2%! Last night going out, I had a moderate to heavy (fbook, 3g, gps, text, youtube) usage pattern on my phone and it only drained 40% after 6 hours of use.
I don't know what else to say, but I'm letting those with battery problems know that the SGS is capable of great battery life. And if all your optimizing and tweaks aren't doing it, then you may want to consider exchanging for a new phone if you still have warranty.

I have a great battery life too in my device compared too the another smartphone i used in the past and now compared to Ip4 and N8 in this devices the bat drain is much higher. So im positive surprised with
the galaxy battery performance, i only use the push email everything else is turned off, livewallpaper and so on..
Sent from my GT-I9000 using XDA App

My phone came with JM7 firmware. My battery life is just excellent, not needing a recharge before a few days with my use

Running JPM here, with darkyy's raw metal ROM, my battery life went up by at least 40% - %50. I was losing 1% per 5 - 10minutes of usage, now its more upwards of half an hour of usage.

I think the phone has very good battery life if you understand what can cause battery drain and adjust it accordingly.
I am now gettining 5% drain per 24 hours on (almost) standby. This would give me about 20 days of standby which is crazy.
Here is my setup:
UK 16 Gb Galaxy S with Eclair JM6 and Voodoo lagfix
Set network to GSM (2g)
Disable internet usage (with APNDroid)
Disable WIFI, Sync Off, GPS Off (with power widgets)
Just before I go to bed, I run Advanced Task Killer and kill anything that doesn't need to be on memory (inlcuding Advanced Task Killer itself).
Using your phone WILL spend a lot of battery. Browsing the internet on 3g is a battery killer. This means that if you do something on your phone that maintains an active 3g connection, it WILL drain your battery in about 3-6 depending on your 3g coverage.
WIFI is better, but again you are looking at something between 6-12 hours of continuous usage, so make sure you only use it when you need it.
Finally, if you need to have your emails the instance they arrive, go for a blackberry because it has the only way of pushing email without maintaining a constant data connection.
I don't need this so I am extremely happy with my phone and the battery life I can get out of it.
I hope this helps.

Have my phone set for 2G with wifi always on.
Use wifi at home.
2G is enough for all normal syncs, and if I need more speed for anything else I temporarily switch to 3G for that.
This way a single charge last me well over 24h under normal usage. Don't even know exactly how much.
With the phone set to 3G, the same usage patern will eat a full charge in something like 8h.
Sent from my GT-I9000 using XDA App
Sent from my GT-I9000 using XDA App

JPM Rom with everything except bluetooth turned on my battery lasted 3 days with low usage (skype a few times and some phone calls and a bit of wifi web-browsing.)
Much better than my wife's iPhone 4... Normally charge it every 2 days.
I am very happy with the phone, just a couple of bug fixes and I would really like it if Swype did some level of contextual checking of words to help minimise unnecessary corrections (perhaps they do already, but it is certainly not well implemented/sophisticated enough).

jonnie86 said:
I was also getting very poor battery life, till I went and exchanged my phone for a new one.
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Which ROM was on your old SGS and which one is on the replacement?

SyndicateXDA said:
Which ROM was on your old SGS and which one is on the replacement?
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Click to collapse
Eclair for both. No Froyo.

what i wish to have is greater control over the phone, more easily.
Some kind of powertop GUI that let you see the power usage per process.
So you could plain uninstall apps installing ****ty services consuming the battery.
Likewise i'd like *real* control over which background services are running. I mean running an auto killer wtf? Horrible design!
I just want to switch off a service and that it doesnt start again 5 min later thank you very much.
Even the task manager is quite bad. You see last started apps but you don't know which one is running right now. And if its running and backgrounded since a while and you started other apps.. it might very well not even show up in the list anymore. Horrible design again.
Saying all that because stock the phone battery is excellent, installing a couple of popular apps kills it..

jonnie86 said:
Eclair for both. No Froyo.
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Thanks for your prompt reply. Could you check it more precisely on your current SGS? FYI: Settings -> About phone -> Baseband version and Build number or "call" *#1234# -> PDA, PHONE, CSC version numbers. Thanks in advance.

SyndicateXDA said:
Thanks for your prompt reply. Could you check it more precisely on your current SGS? FYI: Settings -> About phone -> Baseband version and Build number or "call" *#1234# -> PDA, PHONE, CSC version numbers. Thanks in advance.
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Baseband: I9000UGJH2
Build Number: ECLAIR.UGJH2
Kernel Version: 2.6.29 [email protected]#2
Let us know if you find out anything.

jonnie86 said:
Let us know if you find out anything.
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Sure thing. And thanks. KIES offered an update from JM1 baseband and JM2 build version. We'll see how the new ROM performs in about 3 days. Unfortunately don't have spare time to do that sooner. I suspect there's huge difference within the baseband versions.

hey guys.
i have galaxy s i9000..i also had problem of battery.my battery would hardly last 24hrs...i even switched to gsm only mode n switched off sync.but still had same prob..few days back i installed JPJPA firmware..now its wroking fine.lasts more than 35hrs...n also battery charges quickly

Is it possible that the reading on the phone is wrong? When you say you are getting 24 hours are you letting it run flat.
Alternately is it saying the battery is running low and you recharge before it goes flat?
Just wondering if the meter is simply giving incorrect information.

Been 24 hours since last recharge. Lost 6% so far. Running JP6 Froyo. Rooted. Network Data Off. During this 24 hours, just used Angry birds-30mins and ColorDict 5mins. Haven't installed any unnecessary app.
Had lost 1% on standby after 14hrs with no usage. Thats amazing. Very Happy user.

Also want to tell u guys that GPS with active Data connection and Google Maps running and display on took approx 1% of battery every 3mins.

Impossible using stock battery, this phone draws a minimum of 10% battery per hour the screen is on. Its more likely 15-20% with most peoples phone.
Your battery meter may be inaccurate, for example after flashing once my battery stayed at 100% for hours then suddenly shot down to 20%
Sent from my GT-I9000 using XDA App

I use "Battery Indicator" to check my battery status.
My screen is set to turn off and lock after 30 seconds of idling. So it is quite possible to achieve the standby times listed.

Hi, how long do you have holding time of battery, when you are using wi-fi? (browsing)

[HELP] Battery Drain, 35% drop in 10 hours

This has been plaguing my phone for a few months i can't even get 24 hours without it dieing. I can't figure out what the problem is and i have tried everything except a full wipe which i want to avoid.
Before i would get about 2 days with normal usage (few calls, browsing the net, msn, music and little bit of gaming)
Now when i unplug it at 7AM it is almost dead by 3PM (15%) but nothing has changed so i can figure out where the drain is coming from. I'm using Doc 9.6.6 (was on 9.1.4 and did a NO WIPE of 9.6.6 yesterday to see if i could get better battery) and SpeedMod K13C 500.
Everything that uses data is disabled or set to manual. Wifi is disabled, GPS is disabled, Bluetooth disabled. Google/Facebook sync is disabled. No Live Wallpaper, Email is set to NEVER, Fancy Widgets is set to NEVER. Reset the battery state in recovery numerous times, wiped cache etc.
Last night phone was at 60% when i woke up the phone was at 35% and that's only about 10 hours and after a FRESH shutdown and reboot. So nothing out of the ordinary like a game was running.
Whats Running after a fresh boot is in the pictures below, ending things like Tango and Galley, Facebook make no difference.
What is causing this massive idle drain?
If i need to do a full wipe is there a way to save my games saves? don't care for anything else just dont wanna start angry birds over again for a 3rd time.

You got 2 days before??
I've always only ever gotten max 12-14 hours out of my battery. Wifi off, bluetooth off, gps off, 3g on, background data & auto-sync on for: 2 gmail accounts + facebook (no auto refresh) + twitter (updates ever 30 mins) + whatsapp. BeejiveIM, GoSMS, Lookout, weatherbug elite widget (updates every 12 hours), agenda widget, NoLED on, and go launcher ex. Running stock rom JL2. Drains about 15% overnight (7 hours).
Not sure how you got 2 days before, but sounds about right to me that you get less than 24 hours from your battery.

Myself and many others get 2 days with light-moderate usage. I'm on 2 days 9 hrs and 10% left right now with 2 hrs 15 min screen time.
If you can't figure it out you might just have to bite the bullet and wipe it to see if that works.

Did you try this:
DocRambone said:
In this post i will try to give some advice and troubleshooting about battery issues. It will be linked from 1 post.
Any contributions is very welcome.
- How to reset battery calibration:
Discharge the phone fully
Charge it to full
Enter recovery, advanced CWM features : wipe battery stats
Click to expand...
Click to collapse

haloimplant said:
Myself and many others get 2 days with light-moderate usage. I'm on 2 days 9 hrs and 10% left right now with 2 hrs 15 min screen time.
If you can't figure it out you might just have to bite the bullet and wipe it to see if that works.
Click to expand...
Click to collapse
can you post your usage habits and what you have running the background etc?
I've only ever been able to get 14 hours out of my battery with light usage (mainly texting every 10-15 mins or so). Even after a wipe

DaanJordaan said:
Did you try this:
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Click to collapse
yes i did try that, its annoying the hell outta me that it used to last 2 days but now its like this and thats with everything off.
I used to have a live wallpaper on all the time and yes that did drain the battery allot but i would still have about 30% after a full day of usage from a full change.
Now it dose not matter what i change if i live wallpaper or not its still dies about 3PM
any way to save my games says if i have to do a wipe?

That's awesome! I get 8% an hour drain on idle with 2 gmail accounts, and a few apps synching... with usage (bluetooth music, browsing, texting...) I have about 15% an hour drain.
Wiping, battery stats wipe, new roms, kernels, and modems don't fix anything... I guess we just have to accept that some units go through more battery than others!

If you're using Google Latitude service (configured via Maps), try signing out of it and see what it does for you. I've been suffering from excessive battery drain as well and after a lot of experimenting I've found out that using Latitude on Froyo ROMs (any Froyo) leads to phone not entering sleep mode properly for some reason and therefore draining battery a lot.
Nexus S users are experiencing this as well and I've even had confirmations from Desire users experiencing this, so this might be some bigger issue not related to SGS.

Case_ said:
If you're using Google Latitude service (configured via Maps), try signing out of it and see what it does for you. I've been suffering from excessive battery drain as well and after a lot of experimenting I've found out that using Latitude on Froyo ROMs (any Froyo) leads to phone not entering sleep mode properly for some reason and therefore draining battery a lot.
Nexus S users are experiencing this as well and I've even had confirmations from Desire users experiencing this, so this might be some bigger issue not related to SGS.
Click to expand...
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:O oh man I hope this is the case, I will sign out of Google Latitude, and report with the results in a few hours

quaff said:
can you post your usage habits and what you have running the background etc?
I've only ever been able to get 14 hours out of my battery with light usage (mainly texting every 10-15 mins or so). Even after a wipe
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There's all the standard stuff running, gmail, swype, social hub, task manager, some other widgets, etc... There's no talk time on this run, it can burn it up pretty quick probably 20+% per hour.

haloimplant said:
There's all the standard stuff running, gmail, swype, social hub, task manager, some other widgets, etc... There's no talk time on this run, it can burn it up pretty quick probably 20+% per hour.
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Wow. I'm insanely envious of your 3days! and also, your display only sucks up 53%. Something is odd with my phone, my display usually takes about 98%.

haloimplant said:
There's all the standard stuff running, gmail, swype, social hub, task manager, some other widgets, etc... There's no talk time on this run, it can burn it up pretty quick probably 20+% per hour.
Click to expand...
Click to collapse
Hm, do you have Google Latitude signed in on Google Maps?

No, no Latitude.
The display will suck up 90+% if you're using the phone alot since it burns battery much faster than idle or networks.

haloimplant said:
No, no Latitude.
The display will suck up 90+% if you're using the phone alot since it burns battery much faster than idle or networks.
Click to expand...
Click to collapse
Interesting, I'm going to give it a go without Latitude on after I reflash stock JL2. My "Time on" for Display is usually something like 40mins or so when I check it at 98%

Idle drain seems to be what are most worried about.
Ok first fix permissions from cwmedia recovery in speedmod.
Then wipe cache and dalvik partitions, don't worry your phone will rebuild them.
Next I would try something if you want avoid a factory wipe.
Disable swype and clear app data then re-enable. Swype seems to have non wipe issues thru kies.
Now use OS monitor app to find apps which lurk in the background and then check their permissions, ones that can keep the phone awake are the culprits. Wipe their data or uninstall.
Facebook app sometimes doesn't shut down properly so watch that.
Also after a session I like to use clear mem level2 to stop Facebook or another app eating battery.
Finally what modem are you using? Jpy modem sucks for me at least. The latest jve from the gingerbread leaked rom is superb!
Hope this helps and good luck!
Stock JPY, Insanity SpeedMod OC-1200Mhz/UV, ext4, JVE gingerbread Modem,

Something I did a while ago seemed to help.
I ran down the battery till it switched off. Phone wouldn't power on. I plugged in the charger and powered on again. To my surprise the battery showed about 25%. Unplugged the charger then used it again till shutdown. Took about half an hour to do so, even though it was only connected to charger for a minute or so. Did that about 5 or more times till finally booting up with charger connected showed 0%.
Generally it not a good idea to boot with the charger connected as it stuffs up the battery stats or something, but I think in some cases it can help. Charged it to full and had no problems since.
Obviously this wont help if something in the background is killing the battery.
Sent from my Galaxy S using XDA App

May be you have a task killer running in background and killing tasks that you shouldnt kill, by example any widget you have in your screen, it will cause that it will be reestarting and consuming CPU each certain time.
Sent from my GT-I9000 using Tapatalk

Remove TANGO !!! This soft was draining more than 25% overnight on my SGS (even if there's no service running and if it's not in task manager), After removing it, now my battery decreases 3-4% in 8h !

Funny Tango was the one thing that jumped out to me from the process list, but I don't have any experience with it myself. Shutting that off for a while is probably worth a shot.

This is my batterystats. "Taleanrop" is phonecalls or whatever the english term is.

[Q] mikg 1.03 battery issues

This is by far my favorite Rom yet but I'm having battery issues that I haven't had before. I unplugged my phone last night at 100% and when i woke up 5 hours later my battery was at 68% normally it would only drop about 10% or less in 5 hours. any ideas? I have all new radios and wimax and such.

Is your phone sleeping?
Sent from my PC36100 using XDA App

Once we get a new custom kernel, it should remedy the battery issues on that ROM.
We just have to wait for HTC to release the source for the latest kernel.

OK stupid question how do I know if my phone is sleeping ?

At 7am I reset battery stats and put in a 100% battery (charged on an external charger)
Now (11:15) I am at 69% I expect this to get better once the batt stats are done.
I have new radios and the kernel for the ROM.

stock battery. i dont think my phone is sleeping.

If you have mobile data on, your battery will drain a lot faster, especially while we're all stuck with the stock kernel

No battery problems here. Altho it is the stock Kernel, i can easily use my phone for a full day with several calls, a bit of gaming and youtube (3G) while in the pooper and have 50-60% remaining in the evening
Try to reduce app sync frequency (you don't need that when in bed really..), LED notifications
No juice defender, or taskiller, or extended battery- just using setCPU with "onDemand" governor

That's about where mine is, too. I'm used to my SBC setup though, where I'd be at 85% by the end of the day.

You should not be losing that much battery over night. I generally only lose 2-3%. Have you checked your battery usage? Post a screen shot of it.
It looks like this
http://smartphoneblogging.com/wp-co...ngerbread_battery_consumption_app_graphic.png
You can see when your phone is awake vs screen off. And if you click on the apps in the list, it will tell you how long that app kept the phone awake,

So when can we expect a custom kernel. i use set cpu with ondemand also no juice defender or app killers here either.

gfullwr70 said:
So when can we expect a custom kernel. i use set cpu with ondemand also no juice defender or app killers here either.
Click to expand...
Click to collapse
Probably at the end of the month. :/
If watching paint dry is your thing, you can look back here
http://developer.htc.com/

my phone signal and wifi are lit up all way across i can see my phone wakes in tiny increments and then sleeps

gfullwr70 said:
my phone signal and wifi are lit up all way across i can see my phone wakes in tiny increments and then sleeps
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Click to collapse
So something is waking up your device then. You don't have the wake lock issue. Do you use google latitude? That is a huge battery hog

yes i do use latitude all my sync like facebook and weather are set to 1 hour but have always been and never had this problem before.

gfullwr70 said:
yes i do use latitude all my sync like facebook and weather are set to 1 hour but have always been and never had this problem before.
Click to expand...
Click to collapse
Try it w/o latitude on. I only drop 1-2 maybe 3% through the night once i turned those off. I have my facebook contacts set to sync once a day (don't really need more than that unless you add friends a lot or they update their picture frequently)
Weather I have set to 3 hours, but there is an option to update on device wake..so that isn't an issue either.
Give it a try and see if it helps.
Also if you haven't calibrated your battery, charge your phone to 100%, boot to recovery and wipe battery stats, drain battery til phone shuts off and then charge phone back to 100%. I can usually get about 24 hours of moderate use out of my phone.

ok will try those. i did battery wipe just yesterday

just click the link in my signature for some really good battery tips

OK guys so nothing I done helped my battery life while sleeping so I wiped wiped and wiped again and reflashed twice set everything back up and now my phone sleeps again. These roms can be funny like that sometimes I guess. Any thoughts on that?
Sent from my PC36100 using XDA Premium App

Roms, especially ones that are ports, can be weird like that sometimes. If a couple of wipes and a re-flash did the trick then I'd say that's great.
If not, then it's just bad luck I guess. Hopefully the kernel source will come out in the next few weeks and we'll be able to get kernels that can squeeze out better battery life.

Battery Drainage

I've been using the Aria for 2 years now, and just 2 days ago I ran into an unexpected battery drainage problem.
1. When I am speaking during a call and not holding the phone close to my ear, the proximity sensor is not always triggered which causes the screen to stay on. While the screen is on, the battery drains 1% every minute (or every 30s). When I turn the screen off, the drainage is fine.
2. When I receive text messages (voicemails from my landline trigger a text message on my Aria), the battery drainage is very bad (1% per minute or 30s).
I never use data networks (turned off), background data and autosync are both turned off, gps is always off, wifi is always off, screen brightness is always custom at the 3rd lowest brightness setting. Basically, I try to conserve battery life and only use the phone for talking.
When I looked at battery usage, it was mostly due to Android System, Voice Calls, and Cell Standby.
I'm running the very old Liberty Froyo Rom (the version released like 2 years ago) and the default CM7 kernel. Also, I upgraded to the newest radio to fix this problem, but it didn't seem to make a difference. I don't think these things should be causing the problems since it only occurred 2 days ago while these things have been constant.
Any ideas what is going on or what I can do to make my phone last longer? Talking on the phone for 30 min from full charge takes my phone down to 25%...

honestly at this point my battery meter is completely wonky. the percents mean nothing now. i still get roughly the same battery life but it'll burn through large chunks of percentage in minutes but sit at a single percent for hours or active use.
i'd say try a new battery

If you've got clockworkmod installed, boot into recovery and wipe battery stats. If you're still experiencing this, try a different rom. I've been using CyanogenMod 7 for a long time with no issues.
If this fails, it's probably your battery. It might just be pooped out. If you get a new one always buy and OEM battery! Don't get anything off-brand.

really? its about the battery? not the OS itself?

after 2 years of use it's safe to assume that it's the battery and no necessarily the rom.

2 years with the same battery? old battery i say and is usually the life expectancy with it. i say you get a new battery. or try charging your battery all the way full. wipe the battery stats. then let your phone die, then completely recharge it all the way up again. that worked for me.

Battery life with ANY Android phone is hit and miss, but the Aria is notoriously terrible with it. However, there are several "tweaks" you could do to help it (note: I said help, not fix.). Beyond the basic system setting adjustments, I have found the "Die Hard Battery Calibrator" script by zeppelinrox to be helpful. Look for his V6 SuperCharger thread here on XDA to find it (as well as other useful scripts). Of course, the usual caveats apply: S-OFF, root, magic powers, etc.