Hi,
If you want to know how long your battery life will last when:
- Idle on 2G/EDGE
- Idle on 3G
- Idle on WiFi
- Browsing on EDGE/3G/WiFi
- etc.
What cost battery life the most?
You will learn that "waking up app for doing nothing" will cost you heavily on battery life.
Things like checking email while you have no new email, checking weather while you got the same result, or getting data online while you are not connected to the network.
And so on ...
Sit tight and watch this:
http://code.google.com/events/io/2009/sessions/CodingLifeBatteryLife.html
This special session from Google IO in the past CupCake era explained in detail, with measurements about almost every aspects of the phone that drain the battery.
Interesting enough that IDLE on 2G vs IDLE on 3G will cost you almost the same. And browsing in 3G is more efficient. So, in this respect, I think it is not necessary to set to 2G as most people said for auto-syncing.
At home, use WiFi, because it is more efficient for web browsing.
Choosing and planning your sync and widget will make big different on battery life!
Watch it your-self and share your thought.
i've just removed advanced task killer app, and seriously battery lif is like amazing normally by now i would be at around 50% i'm at 70% and have been using it more like 2 phone calls i normally don't make any and a tiny bit of browsing but that certainly improved it
slaming said:
i've just removed advanced task killer app, and seriously battery lif is like amazing normally by now i would be at around 50% i'm at 70% and have been using it more like 2 phone calls i normally don't make any and a tiny bit of browsing but that certainly improved it
Click to expand...
Click to collapse
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Here what I experienced:
First of all, my phone settings:
- WiFi OFF (on when needed)
- Mobile network OFF (on when needed)
- Always on OFF
- Background data ON
- Auto sync OFF
- GPS OFF
- Bluetooth OFF
- 10% brightness (yes, my eyes is happy with that, seriously!)
- Using HTC "black" wallpaper
One day, I played around with killing tasks, not brutally killing, but just some of them like RADIO, MARKET, etc. Selectively killing.
Then I watched my battery usage, it drain quite a bit like 3% after 1 or 2 hours. I meant, it was really different compared to the other day when I did not touch task killer.
Today, I unplugged at 8:00 AM ... 100%
Now, 15:00 ... still 98% (after 7 hours!).
During that time, I played around a bit with Market via WiFi and SMS, no phone call.
Seriously, I got different result when using and not using task killer.
Try it yourself
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
yep plus i'd normally i don't have bluetooth and i forgot to turn it off today afer using my blutooth headphones, and still at 70% yeasterday it would have been dead by now and i didn't even use task killer to kill apps. maybe advanced task killer stops apps being killed by the android system.
mcgon1979 said:
So your saying advanced task killer is draining battery? Even when its not running ni the background. It can kill itself along with killing apps, so it shoul dnot constitute ANY drain on the battery when not running in the background.
Click to expand...
Click to collapse
I find this one a strange (what seems to be) fallacy when coming to Android 2.x. When I got my Desire, the first thing I got was a task killer. Then, a widget to let me know hom much RAM I have left. When it got low, I used the TK to do it's job and free up some RAM.
But the permeating fallacy seems to be that a TK is needed. But it seems people are finding out, time and time again that it's not. And as people here are finding, it's detrimental. And after not using my TK for a while, I found out that though the RAM can get low, Android will do it's thing in the background and I never notice low RAM in my daily operation.
Some people on another forum put me onto some info sources that explained why TKs can make your battery life shorter. In short, they can kill tasks which have scripts that will respawn, thus causing higher CPU usage and draining battery a little bit quicker.
There were other reasons but I can't remember them right now. People should really let people know and educate them (including some popular websites like AndroidCentral.com that I like) that it's not necesary and actually a waste. (Though I use mine for doing things like file management, installing and uninstalling, but not task killing.)
I watched most of that video that was kindly posted. And if I get this correctly (please correct me if I haven't), when I'm in wifi range, I'd be better off leaving that on to do data transfer as there is a negligable passive battery consumption over 3G and 2G, but a saving when transfering data which grows as the data transfer grows.
But then wifi should be turned off when leaving the wifi area, as like 3G, it drains the battery to have it searching.
Since I'll be in a wifi zone for most of tomorrow, I'm curious if I can get through a full day with wifi left on...
what makes me wonder is if i go to the market, search for something then i go to browser for couple minutes and then go back to the home screen, will the market and browser use the 3g/h/g in the background?
sorry if the answer for this is in the video but do not have time to watch it right now.
It's been said many times that Task killers are not necessary on Android phones and that their use will almost always result in worse battery life and reduced performance.
I used to have two HTC Heros and proved pretty conclusively that the above was true by running a task killer on one but having the same apps. on both. I even reversed things in case the battery was better on one of the devices.
You will never convince some people though. It they want worse battery life and performance surely that is their choice.
I know I will never again put a task killer on an Android device.
Related
Hey guys, thought it might be a good idea to share with each other what apps/settings are mauling their battery life...
Personally at the advice of beards, I used systempanel app to try and monitor app cpu usage etc.
I was experiencing large battery drain overnight, so I decided to leave it running for 1 night. By the morning I had lost about 30 or 40% of battery and systempanel told me that Fancy Widget was using about 11 or 12% avg of cpu (if I remember correctly).
I removed Fancy Widget, turned off Data (with APNswitch) and also stopped systempanel (which prob contributed some of the usage itself) when I went to sleep the other night and the batt was at 40% usage. In the morning I turned on my phone and was greatly surprised to learn that the phone was STILL AT 40%... didn't even lose 1% wooooot
So.. I'd like to put my suggestions out
Batt hungry apps: FancyWidget (maybe...? but I'm surprised that other people don't seem to have a problem so maybe its my human error?)
Phone settings:
Data:3G data seems to consumes a lot!!!
I suggest leaving on 2G if you want to keep auto syncing apps etc, and swapping to 3G when you really need the speed (browsing/downloading).
If you want to totally maximise battery usage, turn off data completely every time you put the phone on standby, and turn off all autosyncing apps.
I also believe Wifi consumes less battery than 3G usage, although I haven't done any serious testing, I managed to use wifi on and off for about 5 hours at a lanning event and I still had a fair bit of batt left.
Recommended apps:
I recommend APNswitch to turn off data. I like it because you can use it as an app, not just a widget, as I've found all the APN widgets too be ugly. It also uses the notification bar wisely
Other experiences:
According to systempanel, samsung widgets (feed, buddies, daily briefing) all consume very little CPU (less than other widgets in my experience. I've kept them all as they seem beautiful to me
To XDA members, anyone else experience bad batt life with fancy widget?
Please feel free to critisize any of my claims, I hope we can help each other out with sharing battery life tips, good/bad apps etc.
EDIT:
Wallpapers:(thanks gadjet0)
Live wallpapers seem to consume a lot. Also having read discussion about the power consumption of oleds, I put a pure black background on my device. Whether it's actually reducing power or not I have no scientific evidence.
Thanks should pin this!
Sent from my GT-I9000 using XDA App
Have you tried any live wallpaper, I got the feeling that they put a drain on the battery!
Yes, all its true what have writed oswade. I was make this thing with my Galaxy, and battery life have very growing...
Regards
also try tasker, I have set profiles to put phone into airplane mode at night, during day the data is off, but comes on every 15 mins or when the screen is turned on (like juicedefender i think its called) works brilliantly and conserves battery.
I can unlpug phone at 5am and still have around 60% at 9pm with light usage, while before I would get to evening and battery would be close to dead!
Glad that I'm not the only ones.. I suffered quite bad. Full charge ard 6pm..was playing robo zone for an 1hr+. Batt left 50%. Arghh..
Does black or darker background uses more batt?
I'm using beautiful widget.
Sent from my GT-I9000
oswade said:
Hey guys, thought it might be a good idea to share with each other what apps/settings are mauling their battery life...
Personally at the advice of beards, I used systempanel app to try and monitor app cpu usage etc.
I was experiencing large battery drain overnight, so I decided to leave it running for 1 night. By the morning I had lost about 30 or 40% of battery and systempanel told me that Fancy Widget was using about 11 or 12% avg of cpu (if I remember correctly).
I removed Fancy Widget, turned off Data (with APNswitch) and also stopped systempanel (which prob contributed some of the usage itself) when I went to sleep the other night and the batt was at 40% usage. In the morning I turned on my phone and was greatly surprised to learn that the phone was STILL AT 40%... didn't even lose 1% wooooot
So.. I'd like to put my suggestions out
Batt hungry apps: FancyWidget (maybe...? but I'm surprised that other people don't seem to have a problem so maybe its my human error?)
Phone settings:
Data:3G data seems to consumes a lot!!!
I suggest leaving on 2G if you want to keep auto syncing apps etc, and swapping to 3G when you really need the speed (browsing/downloading).
If you want to totally maximise battery usage, turn off data completely every time you put the phone on standby, and turn off all autosyncing apps.
I also believe Wifi consumes less battery than 3G usage, although I haven't done any serious testing, I managed to use wifi on and off for about 5 hours at a lanning event and I still had a fair bit of batt left.
Recommended apps:
I recommend APNswitch to turn off data. I like it because you can use it as an app, not just a widget, as I've found all the APN widgets too be ugly. It also uses the notification bar wisely
Other experiences:
According to systempanel, samsung widgets (feed, buddies, daily briefing) all consume very little CPU (less than other widgets in my experience. I've kept them all as they seem beautiful to me
To XDA members, anyone else experience bad batt life with fancy widget?
Please feel free to critisize any of my claims, I hope we can help each other out with sharing battery life tips, good/bad apps etc.
EDIT:
Wallpapers:(thanks gadjet0)
Live wallpapers seem to consume a lot. Also having read discussion about the power consumption of oleds, I put a pure black background on my device. Whether it's actually reducing power or not I have no scientific evidence.
Click to expand...
Click to collapse
How did you stop "systempanel"?
borchgrevink said:
How did you stop "systempanel"?
Click to expand...
Click to collapse
Couldn't figure that out either... probably need to use a task-killer or reboot.
So what do you recommand (or anybody else) to replace Fancy Widget ?
I don't really want a HTC like Clock but I want a digital clock like this ?
Beautiful Widget for exemple ?
And i don't know why an app which automatically turn on/off the 3G when ur using the brownser/market doesn't exist already ? That will be great !!!
What's wrong with fancywidget? Seems fine on my device.
If using Juicedefender,do I still need Advanced Task Killer?
Then What?
Hi!
We have industry best hardware configuration.
But we
1) can not Use live wallpapers
2) can not Use 3G for many hours
3) can not Use considerable number of applications from the market
4) can not watch two full length movies
5) etc.................
If you want above
1) Purchase additional battery and put in your pocket
2) Power adapter/ Travel adapter always carry with u
If you are roaming for more than six hours, then it's bad.
this is not only for Galaxy S most of the samart phones fall in this.
What can we do????????
-G
Dude, I have a Samsung Galaxy Ace
As soon as I got it I installed fancy widget and some other programs. My phone was lasting only 6 hours. I sync to corporate, gmail, facebook and a few others. At first I thought 'bad phone'. I uninstalled Fancy Widget last night and voila my phone is fine. It'll last a day+ now.
What the hell is wrong with that app?? Why does it need so much compute? Its just a widget that shows time??
I have a question regarding my battery life. Yesterday night at 10:00 pm i played +/- 40 minutes on games like Angry Birds and used my 3G connection for about 10 minutes. My battery dropped from 100% to 61%. When i didnt use my phone (just idle mode) @ 11:46 pm i wanted to check how much battery i had left today in the morning (10:00 am) ..... it whas completely dead 0% .... i have this phone since august but if i knew the battery life whas so crap i would have picked another device.
Is there a way to improve it ??? since i read in diffrent topics people can use their desire for 2 days without a recharge.
- Not rooted
- Froyo 2.2
The HTC Desire is a smartphone running powerful mobile OS and a lot of additional gadgets like GPS, ...
So comparing battery life is impossible.
You can get a battery life of a mobile phone/week if you use it like a mobile phone: No GPS, no data, no playing games, no surfing, just occasional talking. So the battery life is normal and good, compared to mobile phones.
But normally you use it like a smartphone, thus you use it daily, play some games, ... which results in a battery life of a few hours (navigation) up to two or three days (moderate use), with an average battery life of a day (heavy use).
However, one thing for sure: Something is wrong with your phone.
This dosen't mean something is broken, rather you use an app/setting, which causes the battery drain, so you did something wrong, you're the failure, not the device!
Playing a game drains the battery fast. The display is on, probably max. brightness and the CPU and GPU is working like hell. It also gets warm, so you can feel the increased power consumption.
In sleep mode however, it should consume much less than it did for you. Maybe 2% each hour.
So to find what app you've installed or what app you keep in the background running, install a program like Android System Info and take a look at the task list, CPU load should be around 10% if you wait a few seconds and do nothing.
Take a look at the running services (android settings, applications, ...) and check if you really need all of them or if an app is active which you don't use. Then don't force close it, only idiots do this, rather open the app and deactivate the service (like automatic updating)
Next option: Test the battery life again. Maybe an app crashed and caused the increased power draw and now everything is working fine again and battery life is normal again. Then it's impossible to find a culprit with Android System Info.
Also tell us what settings you've activated: GPS/Wifi/Data/BT/...
This is happening because, some process not letting your device to sleep..!!
All you need to do is type *#*#4636#*#*
and check the battery history ,you'll get to know which process is using your battery, and remove that application.
UpSpin said:
The HTC Desire is a smartphone running powerful mobile OS and a lot of additional gadgets like GPS, ...
So comparing battery life is impossible.
You can get a battery life of a mobile phone/week if you use it like a mobile phone: No GPS, no data, no playing games, no surfing, just occasional talking. So the battery life is normal and good, compared to mobile phones.
But normally you use it like a smartphone, thus you use it daily, play some games, ... which results in a battery life of a few hours (navigation) up to two or three days (moderate use), with an average battery life of a day (heavy use).
However, one thing for sure: Something is wrong with your phone.
This dosen't mean something is broken, rather you use an app/setting, which causes the battery drain, so you did something wrong, you're the failure, not the device!
Playing a game drains the battery fast. The display is on, probably max. brightness and the CPU and GPU is working like hell. It also gets warm, so you can feel the increased power consumption.
In sleep mode however, it should consume much less than it did for you. Maybe 2% each hour.
So to find what app you've installed or what app you keep in the background running, install a program like Android System Info and take a look at the task list, CPU load should be around 10% if you wait a few seconds and do nothing.
Take a look at the running services (android settings, applications, ...) and check if you really need all of them or if an app is active which you don't use. Then don't force close it, only idiots do this, rather open the app and deactivate the service (like automatic updating)
Next option: Test the battery life again. Maybe an app crashed and caused the increased power draw and now everything is working fine again and battery life is normal again. Then it's impossible to find a culprit with Android System Info.
Also tell us what settings you've activated: GPS/Wifi/Data/BT/...
Click to expand...
Click to collapse
Brightness is already said to medium, i also turned of those life wallpapers and it still drains like ****. When i look at the battery status it says battery life is good. Maybe a application that is running i dont know, ill try to find it out. So far i have a few apps installed which i rarely use.
harish.awe said:
This is happening because, some process not letting your device to sleep..!!
All you need to do is type *#*#4636#*#*
and check the battery history ,you'll get to know which process is using your battery, and remove that application.
Click to expand...
Click to collapse
Thanks will check it out and see what it does now in idle mode.
Idle mode 01:28 pm starts now, will post results in a few hours.
Edit: It's 02:00 pm here and i already lost 4% battery, its 96% now , i did *#*#4636#*#* and checked battery status and it seems wifi is in full use 99.7%. I will turn this off but what about the 3G connection
Edit2: It's 2:24 pm here and the battery status is 92% now, i reveived +/- 4 emails in that time. I checked the status in battery indicator pro and this is what it says
Android system 37%
Mobile Stand-by 22%
Phone inactive 15%
Wi-Fi 15%
view 11%
nothing else......i am really lost now.
Is my battery damaged/broken ? .... how can i reset/callibrate the battery ? or should i contact the shop where i got this phone from for a new battery ?
don't worry, lots of people are having bad battery lifes, and angry bird drain your battery really quickly, so it is quite normal, especially on AMOLED desires.
h3llb3nd4 said:
don't worry, lots of people are having bad battery lifes, and angry bird drain your battery really quickly, so it is quite normal, especially on AMOLED desires.
Click to expand...
Click to collapse
Yeah i have AMOLED
PS: After 30 minutes without touching it the battery is still 92%.
you could install setcpu and set profiles to save battry life
Might try that.....but after 1 hour the battery is still 92%.....i guess wifi drained my stuff down all the way as i am pretty sure i turned that thing of last time.
i will do some more tests later....
Edit: After 1 and half hour the battery is still 92%, guess the stock rom isnt that bad .
MichelN said:
Edit2: It's 2:24 pm here and the battery status is 92% now, i reveived +/- 4 emails in that time. I checked the status in battery indicator pro and this is what it says
Click to expand...
Click to collapse
Its not 5:09 pm here and the battery is now 91% (idle, not touched)....guess wifi what the bad thing on my phone.
Tested the battery last night and must say i am happy with the results
10:00 pm yesterday the battery whas 60%, today i looked back @ 11:24 am and the battery just dropped with 10% (3G is on), i didn't touch the phone since then.
Stock Rom / Froyo 2.2
The battery drain came from wifi
I wrote HTC about the battery and they just sent me a brand new one So now I have 2 batteries and I think I'm happy DD
You can check your battery usage with a widget called "currentwidget" (search for it on this forum)
Usually on SBY with radio ON my phone drains from 3 to 4 Ma and 2ma in plane mode. (sounds good with a 1400mah battery)
In heavy usage, it can go anything from 150 to 500ma (ie: playing game with wifi ON)!!
For nice graphics, try to install "battery snap" too.
From HTC themself:
“To also help with Battery Life you can do these steps exactly:
1) Turn your device ON and Charge the device for 8 hours or more
2) Unplug the device and Turn the phone OFF and charge for 1 hour
3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for another hour Your battery life should almost double, we have tested this on our devices and other agents have seen a major difference as well“
Click to expand...
Click to collapse
also found this on a swedish website (i useed google translate, to lazy to manually translate it)
A known problem with the new update of the HTC Desire to Android 2.2 Froyo is battery life. How users have experienced the change is highly variable. Several said that battery life has improved, some even talk about a major improvement. The others have had problems that the phone charges from a fully charged battery several times in one day. If you have experienced such problems, there are measures, some simple, others more complicated and time consuming. Below I list things you can try, the lightest at the top.
# 1 Look what it's drawing power. Go to Settings> About phone> Battery> Battery usage or enter * # * # 4636 # * # * on the keypad and look around a bit. Is there anything that seems abnormal, or any program that seems to be the culprit, uninstall simply the application and see if that helps. While you can uninstall applications you believe is in the background and drag the cream from the phone's battery. Some applications may slip into the "Android System" in your battery history.
# 2 Uninstall system control and task killers. Advanced Task Killer and similar programs do more harm than they help. It is unfortunately only to realize this and stop using them. Android is an OS made for having many applications driving on the background. The operating system puts himself applications you do not use the idle to conserve battery power. Different programs that measure your performance on the phone, for example, Task Panel never sets in idle and therefore system resources continuously. If you have such software installed it may be time to consider uninstalling it. More on why the task killers and Android do not go hand in hand in to read this article by Android developer Dianne Hack Born.
# 3 Clean your home screen. It can be a good idea to try if it helps to clean up your Home screens from various widgets.
# 4 Do a soft reset. Discharge the battery completely (not that the phone is turned off), turn off the phone manually, remove the battery and reinsert it, restart your phone and put it on charge. This may have some effect and provide an improved battery life. Such a restoration known as a soft reset and should be tested before you do a master reset (hard reset).
# 5 Do a "hard reset". Have you done all the methods above are still not noticed any major difference? Then it's time to do a master reset of the OS. HTC have said they for some users might went wrong during the update to Froyo causing poor battery life, and when it is easiest to do a reset to get to grips with the problem. Although Android automatically sync contacts in the "cloud" so it might be a good idea to make a backup of your contacts (Contacts> Menu> Import / Export). Note that when you do a hard reset resets the entire phone, including messages, settings, themes, installed applications, etc. These are not the contents of your SD card. There are two methods to restore your phone, do a google search on "hard reset desire," so there are many simple guides. After restoration, the idea not to install any applications you had installed before. Install the programs one at a time and not too many at once.
Click to expand...
Click to collapse
Hi guys,
I'm all new to Android, having previously used the TG01, moving to DHD is such a right decision and honesty think i may not use winmo ever again.
However, I notice something weird (or at least I think it is) one of which is my free Ram at boost is only 3xx Mb. Considering I have 768 Mb RAM, am I supposed to have around 700 Mb at boot??? or is that the way Android work??. Also note that I use Advanced task killer to see that number since I don't know where to know my available free Ram (noob?). Do you guys have the same amount of Free Ram at boot?
Lots of apps like yahoo messenger, internet browser.. which I do not how to properly close them (I press either home or back keys). They keeps running in the background and even after using advanced task killer to close them, they are amazingly still there. Do I suck or again is it how Android works.
Also, after 3 full charging cycle, unplugging at 7 am, having around 30 mins gaming, wifi on all the time but sometimes not connected, 3g all the time, Yahoo messenger running in background, some mails (not automatically syncs), messages, calls and about half an hour web surfing, it rests in peace at 4.30 pm. Is it normal or Do I have faulty battery. Forgot to mention I set back light at 30%.
Again, if the thread duplicates please accept my apology. I did do some search but have not found info I need. I'm all new to android so any help would do.
Cheers,
Hi,
This is how Android works. Task killers are a waste of time, your phone will use more resources just loading the apps back into memory.
As for the battery, do you need to keep wifi on all day? There is your problem. Turn it off.
Try JuiceDefender from the Android Market. You will certainly notice a battery improvement using it.
andyharney said:
Hi,
This is how Android works. Task killers are a waste of time, your phone will use more resources just loading the apps back into memory.
As for the battery, do you need to keep wifi on all day? There is your problem. Turn it off.
Try JuiceDefender from the Android Market. You will certainly notice a battery improvement using it.
Click to expand...
Click to collapse
Thanks for your help
Removed task killers and installing Juice Defender, hope to see improvement there.
Well,the DHD in all its awesomeness is always gonna miss one thing:Good battery life.Not because it sucks much power or something,but the battery is the smallest I've seen on a high-end device,and,considering the huge screen(which uses from 60% up to 85% of the battery),it won't do really well.However it's not so bad either!I for one,after some charging cycles(I have it about a month now)get much better battery life.Taken off charge at 8am,usage varying depending on the day(eg I don't use it much at school),I still have enough battery at night(around midnight)to play some games for a while and listen to music.Brightness is always full!Can't accept lower with this screen!
tolis626 said:
Well,the DHD in all its awesomeness is always gonna miss one thing:Good battery life.Not because it sucks much power or something,but the battery is the smallest I've seen on a high-end device,and,considering the huge screen(which uses from 60% up to 85% of the battery),it won't do really well.However it's not so bad either!I for one,after some charging cycles(I have it about a month now)get much better battery life.Taken off charge at 8am,usage varying depending on the day(eg I don't use it much at school),I still have enough battery at night(around midnight)to play some games for a while and listen to music.Brightness is always full!Can't accept lower with this screen!
Click to expand...
Click to collapse
No No Noooooooo
With JuiceDefender activated, wifi on occasionally, 3G and Yahoo messenger all the time, 1 hour game, about 30 mins calls and some text, my phone was dead after 10 hours.
Really depressed, I read in battery thread this trick:
Quote from santu001
The official battery trick from HTC tells us to first charge 8 hours or more, then 1 hour while off, boot and let it settle for two minutes, turn off and charge another hour.
I'm on the fourth day since i've done this. After i did this, i deactived all appkillers (advanced taskkiller i.m.c.). Letting the system balance itself as quoted in one of my earlier posts.
I'm on the fifth day after calibration now and have 35% left after 21 hours since last plugin. I didn't turn off anything. I can see through current widget log it's still been very active from -3ma till -30ma in standby, no spikes though. For now i'm getting increased batterlife.
Default phone battery monitor results
Juice left 35%
Screen 39%
Mobile standby 20%
Phone inactive 18%
Speach 7%
Wifi 7%
Android system 4%
Android OS 3%
com.htc launcher 2% (Even though a lot of apps still loaded in BG)
Does anyone try that one?? Does it really improve your battery life (i do not understand the logic though)
keep in mind also, 250mb of ram is dedicated to adreno as vram, so the device only has just over 500mb of usable ram
bagiabanmaybay said:
No No Noooooooo
With JuiceDefender activated, wifi on occasionally, 3G and Yahoo messenger all the time, 1 hour game, about 30 mins calls and some text, my phone was dead after 10 hours.
Really depressed, I read in battery thread this trick:
Quote from santu001
The official battery trick from HTC tells us to first charge 8 hours or more, then 1 hour while off, boot and let it settle for two minutes, turn off and charge another hour.
I'm on the fourth day since i've done this. After i did this, i deactived all appkillers (advanced taskkiller i.m.c.). Letting the system balance itself as quoted in one of my earlier posts.
I'm on the fifth day after calibration now and have 35% left after 21 hours since last plugin. I didn't turn off anything. I can see through current widget log it's still been very active from -3ma till -30ma in standby, no spikes though. For now i'm getting increased batterlife.
Default phone battery monitor results
Juice left 35%
Screen 39%
Mobile standby 20%
Phone inactive 18%
Speach 7%
Wifi 7%
Android system 4%
Android OS 3%
com.htc launcher 2% (Even though a lot of apps still loaded in BG)
Does anyone try that one?? Does it really improve your battery life (i do not understand the logic though)
Click to expand...
Click to collapse
Be patient young Padawan!
On my Diamond(good old days...well,maybe not so good! )the situation was about the same and it took the battery a little more than a month to give me its full potential.This might be the case here too.Don't judge it just yet.Except it's faulty of course!
Anyway,there is always a chance that a badly coded app is doing something nasty with your device.You might want to install system panel(very useful app,both one of the best task killers I've used and a really good system monitoring app) from market.It will show you if any app is using your ram or cpu too much.If one does,try uninstalling it and see what happens.
Hope you solve your problem!
I've had this battery for several months now and I'm just now starting to wonder why my battery life is so abysmal as compared to others with it. It'll probably last around 18-20 hours a day with about a half hour of music playing through Winamp, JuiceDefender, Lookout, and Tasker running constantly, an 100-800 core clock, and low brightness.
Somehow, I think I should be getting better battery life. It has been similar to this regardless of what ROM I use.
Do you all think it's the battery or just the phone?
Obviously, I'm unable to return it. I would just like to know what others think.
Kanojo said:
I've had this battery for several months now and I'm just now starting to wonder why my battery life is so abysmal as compared to others with it. It'll probably last around 18-20 hours a day with about a half hour of music playing through Winamp, JuiceDefender, Lookout, and Tasker running constantly, an 100-800 core clock, and low brightness.
Somehow, I think I should be getting better battery life. It has been similar to this regardless of what ROM I use.
Do you all think it's the battery or just the phone?
Obviously, I'm unable to return it. I would just like to know what others think.
Click to expand...
Click to collapse
POSSIBLE ISSUES:
(Answering these yourself should help pin point the problem just by re-reading your own answers)
- How "old" is the battery?
- What are your min/max CPU frequencies?
- What services are running in the background?
- Did you have this problem on the stock battery?
- What app do you mainly use?
- Does that app drain battery?
Kanojo said:
It'll probably last around 18-20 hours a day with about a half hour of music playing through Winamp, JuiceDefender, Lookout, and Tasker running constantly, an 100-800 core clock, and low brightness.
Click to expand...
Click to collapse
With optimal settings and unnecessary ram hogging apps removed, you should be able to get more hours than that on the original battery half the size.
JuiceDefender should be unnecessary and I found it to inhibit me more than it proved useful.
Lookout is neat, and I do like it, but as I don't see a huge need for it I don't have it installed.
My personal favorite task killer is Advanced Task Killer which I use to cleanup my phone before locking it, you know, close the various apps I just opened . However, I have disallowed it from auto-killing, as this has proved detrimental and in vain when services killed generally immediately restart themselves and consume less battery than the auto killing program attempting to kill them.
A good check on certain apps is to go to Manage Applications under Settings and check your running apps. About 1-2 minutes after a good task kill, check to see which apps have restarted. If any you recognize are running that you didn't start, you may consider removing them. Especially anything that tries to access location services.
Edit: Almost forgot, I don't use any widgets except for Task Killer and Power Control. All others drained more battery than I cared for, and this I tested extensively.
Hi all,
This is my 2nd droid, first was the awesome dezire-z and now this.
Since cyanogenmod for this is not official, which is my favourite to make 2 days out of these post nokia smartphones, I thaught i'd play a bit with it.
Just fyi, I like having a phone that gives me a 2 day (morning to night, 36-40 hrs) battery with moderate use. When I had those goodo'l nokia n/e series, I never had to worry about charging...
Anyways, if you want to try this, here's what you need:
Root (ofcourse),
Titanium backup,
Ram manager,
Set cpu,
Log watcher,
Juice Defender,
Patience (a lot)
My set cpu is @1026mhz-192mhz, conservative, (adv) up%-75, down% 25, freq step - 5
Screen off - 432-192mhz, conservative highest priority
Batt <30% - 702-192mhz conservative
Charger ac - 1512-192mhz, on demand lowest priority
Ram manager - balanced multitasking
Titanium backup - frozen almost everything I don't use. I freeze some, use it for couple of days, monitoring with log watcher if I see any fc and defrost apps accordingly.
Frozen - accuweather, allShare, Ap mobile, Asphalt, Backup, Bilo, Bluetooth test, Bonus Apps, Calender, Customize Homescreen, Days, Digital Clock, Dual Clock, Email 3.*, Email 1.*, Home Screen test, IM 1.0, Kies Air, Kies wifi, kobo, Media hub, microbes, mini paper, more for me, My account 2.*, photo editor, polaris office, pro apps, Slacker, SNS*, Social Hub*, T-Mobile*, Tags, TeleNav, Video chat, Voice Command, Yahoo finance, Zinio reader
Couple more packages are there, but its risky beyond this point.
Juice Defender ultimate - advance, mobile data, bluetooth and wifi enabled, wifi preferred, autosync - ping, bt disable timoout - 5 min, bt enable on call, added my bose bt1 as configured devices, Screen - enable connectivity when screen is on, traffic - enabled, apps - disabled, location - enabled
If anybody can suggest other utils/pieces that may be useful to squize out batt life, please let me know.
Finally, thanks for this forum. This was and still is the most helpful for any of my droid queries.
Sent from my SGH-T989
bivasdas said:
Hi all,
This is my 2nd droid, first was the awesome dezire-z and now this.
Since cyanogenmod for this is not official, which is my favourite to make 2 days out of these post nokia smartphones, I thaught i'd play a bit with it.
Just fyi, I like having a phone that gives me a 2 day (morning to night, 36-40 hrs) battery with moderate use. When I had those goodo'l nokia n/e series, I never had to worry about charging...
Anyways, if you want to try this, here's what you need:
Root (ofcourse),
Titanium backup,
Ram manager,
Set cpu,
Log watcher,
Patience (a lot)
My set cpu is @1026mhz-192mhz, conservative, (adv) up%-75, down% 25, freq step - 5
Screen off - 400-192mhz, conservative highest priority
Batt <30% - 700-192mhz conservative
Charger ac - 1500-192mhz, on demand lowest priority
Ram manager - balanced multitasking
Titanium backup - frozen almost everything I don't use. I freeze some, use it for couple of days, monitoring with log watcher if I see any fc and defrost apps accordingly.
I'll update my frozen list later, if anybody wants to try that.
If anybody can suggest other utils/pieces that may be useful to squize out batt life, please let me know.
Finally, thanks for this forum. This was and still is the most helpful for any of my droid queries.
Sent from my SGH-T989
Click to expand...
Click to collapse
Yeah, that's the pitfall of a smartphone. Check out Juice Defender. The free version's helpfulness is debatable, but the pay version is quite beneficial. Instead of freezing apps (which might be overkill, especially if you ever want to use the one's that are frozen), you can disable each app's connectivity with regard to behavior. It also manages 3G/wifi connectivity pretty nicely and has various profiles which can be set up to manage battery life.
Good luck!
Good topic - thanks.
As an old-time BlackBerry user recently converted to SG2 - I'm getting ready to break-in the new phone on its first trip (ie MUST NOT FRICKEN' FAIL).
Getting at least a good 18hours of battery time helps...
How many hours of use would you consider moderate use within the 40 hour period?
Personally I've noticed the battery will last up to 4 to 5 hours of display time on stock and its more or less the same with any Rom or clock I use. Seeing how I don't use the phone for a constant 5 hours the total battery life varies on what I'm doing that day.
My SG2 shows 5h42m of full-time use (via Battery Monitor).
Battery Stats estimate 7h30min full time "Talk" - doesn't make sense... so I'm not reading the estimates correctly.
A single charge typically lasts about 18hours (takes it down to around 15-20%) at my office.
Just recently noticed that "AdFree" seems to have spiked my SG2 battery usage - I'm sure as a side-effect to re-directing adware to localhost (ie adware panic). Didn't see same effect on Xoom tablet.
bivasdas said:
Ram manager - balanced multitasking
Click to expand...
Click to collapse
I can agree with everything here (thanks for posting) except the RAM Manager. It's generally accepted modern android devices don't need extra applications to manage running applications or RAM usage. Has there been evidence to prove otherwise?
matthewdavis said:
I can agree with everything here (thanks for posting) except the RAM Manager. It's generally accepted modern android devices don't need extra applications to manage running applications or RAM usage. Has there been evidence to prove otherwise?
Click to expand...
Click to collapse
It's true. It is better to let Android take care of memory management and often extra RAM is bad since Android is dependent on using up free memory for a better user experience.
More on HERE.
Keep in mind, reading ram is a LOT less battery intensive than reading off nand. So when you're constantly killing active apps in ram, and then re-loading them later, you're actually hurting battery life.
If you want REAL battery savings, you should be paying attention to what is running at startup on your phone. You'd be amazed how many apps, hell even live wallpapers, run when they aren't being used. I'd suggest using system tuner, going into the startup tab, and removing anything that doesn't need to run at startup. Short of email programs, mms, and anything you want syncing in the background, I'd uncheck all other user apps you installed. They'll be put into memory then only when you actually use them, and save battery power.
Why underclock 33%? Seems pretty extreme. Just use Juicedefender as aforementioned; makes it sip on stand-by.
2hvy4grvty said:
Why underclock 33%? Seems pretty extreme. Just use Juicedefender as aforementioned; makes it sip on stand-by.
Click to expand...
Click to collapse
I have juice defender, but I have a (probably idiotic) question. Does the juice defender icon have to be up on the top for it to be working?
xcrazydx said:
I have juice defender, but I have a (probably idiotic) question. Does the juice defender icon have to be up on the top for it to be working?
Click to expand...
Click to collapse
Somewhere in the settings, you can set it not to display the icon when it's running.
2hvy4grvty said:
Why underclock 33%? Seems pretty extreme. Just use Juicedefender as aforementioned; makes it sip on stand-by.
Click to expand...
Click to collapse
Sorry, completely forgot about JD its a must have
2hvy4grvty said:
Why underclock 33%? Seems pretty extreme. Just use Juicedefender as aforementioned; makes it sip on stand-by.
Click to expand...
Click to collapse
also, my theory is, i don't do anything that requires 1.5ghz clock cycle plus 2 cores. So if i'm on netflix on my mob, i just plug in the charger - therefore full 1.5 ghz is available.
This h/w is overkill per my opinion, i'd say its future proof for at least android 5, BBM (blue berry muffin)
matthewdavis said:
I can agree with everything here (thanks for posting) except the RAM Manager. It's generally accepted modern android devices don't need extra applications to manage running applications or RAM usage. Has there been evidence to prove otherwise?
Click to expand...
Click to collapse
There's a nasty kernel hack to do the same, buying the app is just easier, but thats just me.
I personally felt after all the throttling I did, this is the one tweak that makes the device snappy. After all there's so much ram to spare, this app tweaks the preloading I think. I can feel the difference when I clear memory and the snappyness just disappears.
droid battery usage screen says:
Voice calls 2 Hrs
Display on 1 hr
Cell standby 27hrs
Battery left 30%
SevenSe7enSeven said:
How many hours of use would you consider moderate use within the 40 hour period?
Personally I've noticed the battery will last up to 4 to 5 hours of display time on stock and its more or less the same with any Rom or clock I use. Seeing how I don't use the phone for a constant 5 hours the total battery life varies on what I'm doing that day.
Click to expand...
Click to collapse
droid battery usage screen says:
Voice calls 2 Hrs
Display on 1 hr
Cell standby 27hrs
Battery left 30%