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hi all i have had to charge this phone so much its kinda doin my head in, last night i charged it and took it off at 6pm fully done and my 11pm after taking approx 30pics + 4vids(4min long each) it was down to very low life.
so i chargeed the battery fully again, and this time from 8am ~ 10am today my battery is at 77% i have done sofar
*backlight set @ 30%
*hspda ON
*Weather, facebook download every 1 hour;
*1call, 5min
*3 SMS got, 5 SMS sent
*1hours playing with phone (general settings)
*took 10 photos
*took 1 vid 3min long
from 100% to 77%,
Simple, turn off 3G. On regular GSM my phone was at 37% after 12 hours with at least 30min talking, lots of browsing, emails, texting, and 30 minutes GPS.
Simple, turn off 3G. On regular GSM my phone was at 37% after 12 hours with at least 30min talking, lots of browsing, emails, texting, and 30 minutes GPS.
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Click to collapse
did u run with 3g/hspda on before and did it improve alot or not, as i use net alot and really nead hspda
TBH I doubt you are fully charging in 2 hours. The iPhone is the same, fully charging is not till the meter says 100%, that is more likely 80%.
The battery meter may also need calibrating. Personally I would drain the battery dry by running videos etc, and then charge it back up and leave it charging overnight.
Gajet said:
TBH I doubt you are fully charging in 2 hours. The iPhone is the same, fully charging is not till the meter says 100%, that is more likely 80%.
The battery meter may also need calibrating. Personally I would drain the battery dry by running videos etc, and then charge it back up and leave it charging overnight.
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Click to collapse
i charge it alot longer till green light came on not two hours matey, it took two hours to lose that much life lol
ps. i will run a satnav a few hours should run life down and then recharge
My battery was draining fast too. I realised it was because it would stay connected to my data (mobile web for O2 in my case) and never disconnect. I only clicked on the notification bar and saw i was connected to my data for over 1 hour and half. That is a big battery drain. Don't switch to gsm mode - that would suck. What is the point of having such a high end phone and use it in gsm mode?
All I can suggest to you for the time being (until someone figures out how to have data connections auto disconnect after a couple of minutes) is to disable auto downloads for the following:
facebook, weather, mail, stocks, time sync, twitter etc.
You now have to check manually these items. Sucks i know but only way for me to not stay connected to data and drain my friggin battery
That happens to me too..I have everything set to update manually! No internet time no twitter,weather etc..And no other apps!!! And it still connecting by itself and stays this way for hours till i notice it!! Any ideas of what does it try to update??
(dont tell me the obvious ones!!)
My battery was draining fast too. I realised it was because it would stay connected to my data (mobile web for O2 in my case) and never disconnect. I only clicked on the notification bar and saw i was connected to my data for over 1 hour and half. That is a big battery drain. Don't switch to gsm mode - that would suck. What is the point of having such a high end phone and use it in gsm mode?
All I can suggest to you for the time being (until someone figures out how to have data connections auto disconnect after a couple of minutes) is to disable auto downloads for the following:
facebook, weather, mail, stocks, time sync, twitter etc.
You now have to check manually these items. Sucks i know but only way for me to not stay connected to data and drain my friggin battery
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Click to collapse
ok sounds like a good plan matey, im currently playing a video over and over to kill my battery 0% then im going to charge from no power while phones turned off, 5% life left lol....common...
i keep getting message battery low may lose data is this true will i lose data on my fone?
on the old PDA's if you drained the battery ( <1% or something like that ) your data can be gone, its like performing a hard-reset... don't know how it is now though... propably its safe, or it turns off before 0%
br3nt said:
on the old PDA's if you drained the battery ( <1% or something like that ) your data can be gone, its like performing a hard-reset... don't know how it is now though... propably its safe, or it turns off before 0%
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Click to collapse
You don't have to worry about that any more. A different type of memory is used. You can even take the battery out and leave it for days and all your programs and data are still there.
ok people i completely deaded the battery till it wouldnt turn on and started it charging at 15:43, its now 17:00 and still showing orange led light so i will keep checking every 15min to find out...
1) how long to charge from total flatnesss
2) how long battery last tomorrow on full charge from now to when it conks out again
will keep you updated
just for information: HD2 has a battery that needn't get totally depleted to get the full charging cycle like on older battery packs. On the contrary, the battery suffers when completely discharged. It is recommended not to leave it till the phone dies, this reduces the battery life. Charge it whenever possible. I have mine in active dock when driving in car, as well as when in office. I know the battery life could be better but well...
dusanko said:
just for information: HD2 has a battery that needn't get totally depleted to get the full charging cycle like on older battery packs. On the contrary, the battery suffers when completely discharged. It is recommended not to leave it till the phone dies, this reduces the battery life. Charge it whenever possible. I have mine in active dock when driving in car, as well as when in office. I know the battery life could be better but well...
Click to expand...
Click to collapse
i dont mean to say ur lieing or anything but do u ave evidence of this, as so many have told me to totally deplete the battery every time, in a few forums around the net
DAMIEN123_666 said:
*took 1 vid 3min long
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Click to collapse
I would imagine video recording puts quite a strain on the battery.
Also don't forget that gorgeously massive screen runs from a 1200mAh-ish battery. I have the Xperia X1, with a 1500mAh battery. When I get the HD2 I can't help but feel there just won't be enough juice to go around.
Lower battery capacity + bigger screen = ever-so-slight reduction in battery.
I wonder whether captive or resistive screens take more power?
I'm using wi-fi at home for all data and the battery is lasting forever!
Strongly recommend tying this - see if it works for you?
ok all i have the full charge time of the battery, from complete flaness 0% life to full charge 100% life time taken
start 15:43 ~ finish 18:12 = TOTAL 3:19min.
now i will take note of all i do on the device and post results tomorrow or the next day if im lucky and it last that long lol
DAMIEN123_666 said:
start 15:43 ~ finish 18:12 = TOTAL 3:19min
Click to expand...
Click to collapse
Also the way you charge your battery affects the charge time.
Example:
- Charging through phone using stock charger
- Charging through phone using third-party charger
- Charging using a short USB connection
- Charging using a long USB connection
- Charging through phone with phone off
- Charging through phone with phone on
- Charging through official external battery charger
- Charging through third-party external battery charger
Sometimes stock accessories are slower, others, not so. Some manufacturers refer to a "power charge", for example some Sony Walkmans. For that to work though the phone / device has to be off. Thats how they get those 3min = 3hr charge times.
DAMIEN123_666 said:
ok all i have the full charge time of the battery, from complete flaness 0% life to full charge 100% life time taken
start 15:43 ~ finish 18:12 = TOTAL 3:19min.
now i will take note of all i do on the device and post results tomorrow or the next day if im lucky and it last that long lol
Click to expand...
Click to collapse
Erm that's not what I advised. The aim was to re-calibrate the battery meter. All you have done is wait till the batery meter says 100%, whether in reality it's 80%, 75% or whatever. A full overnight charge would have guaranteed that 100% = 100%.
I don't see what you've done other than continue to use it the same as you already were.
I said I doubt you can get 100% in 2 hours, 3:19 isn't much more.
DAMIEN123_666 said:
i dont mean to say ur lieing or anything but do u ave evidence of this, as so many have told me to totally deplete the battery every time, in a few forums around the net
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Click to collapse
No he's right, completely draining the battery isn't good and shouldn't be done too often. regularly topping the battery up is the way to go.
Gajet said:
Erm that's not what I advised. The aim was to re-calibrate the battery meter. All you have done is wait till the batery meter says 100%, whether in reality it's 80%, 75% or whatever. A full overnight charge would have guaranteed that 100% = 100%.
I don't see what you've done other than continue to use it the same as you already were.
I said I doubt you can get 100% in 2 hours, 3:19 isn't much more.
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hi i plan to monitor usage till battery drops dead and then tomorrow night or the net if im lucky i will redo the recharge test over night
Ok, yesterday I put my battery to the test. I decided to use my phone non-stop until the battery drained. During the entire test I had running the following tasks on Task Manager:
Opera---with tap vibration enabled
Messages
Active Sync
Word Mobile
Hotmail
I had:
Push E-Mail (hotmail) "As items arrive" (receiving emails approx every 5-10 mins).
Backlight Automatically adjusted on, with both battery and external power set at 40%.
LeoCpuSpeed app running at 998 MHz.
Constant changing signal strength from 1-4 bars and H to 3G to E and back to H(Inside the lobby of a building).
Weather, Twitter, Facebook and everything else to be updated automatically, each one being set to update asap.
BsB Tweaks settings in the pics below.
Apps Installed: see pic below.
Also had some texting, about 30 messages from 9:30pm to 11:00pm with notification set to vibrate and ring. No phone calls
So, if you think your battery was bad...this is how mine did
100% -- 8:25pm
96% -- 8:38pm
89% -- 8:53pm
83% -- 9:10pm
76% -- 9:27pm
70% -- 9:44pm
63% -- 9:59pm
55% -- 10:18pm
47% -- 10:37pm
40% -- 10:53pm
34% -- 11:10pm
25% -- 11:28pm
16% -- 11:45pm
8% -- 12:03am
0% -- 12:10am
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Click to collapse
Pretty much my battery did not last even 4 hours. Keep in mind I was browsing Facebook and XDA forums on Opera non-stop. Also noticed when the charge was at 8%, it started draining 1% per minute
My conclusion...I will have to get a spare battery cause a single battery can't handle my every day usage Have tried different Radios, but they all seem the same to me strength and signal wise. I haven't tried any other Custom ROM than KUMARS.
In case I forgot something I'll add it later on.
I also had very bad battery life, i have flashed a few different roms since ive got the phone about a week ago, and id have to say
forum.xda-developers.com/showthread.php?t=667601 this rom has outstanding battery life. i would definatly give it a shot.\
nirvanafreak919 said:
I also had very bad battery life, i have flashed a few different roms since ive got the phone about a week ago, and id have to say
forum.xda-developers.com/showthread.php?t=667601 this rom has outstanding battery life. i would definatly give it a shot.\
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Click to collapse
Pal, how would you compare this rom with Kumar's in terms of Battery life?
My stock rom had slightly more battery life compared to Kumars.
I had terrible battery life with the Cell Evo ROM.
I have had terrible battery life ever since I had my phone. However, I am currently using ChuckyROM with 10.50.19_2 radio and it's actually getting me through the day now.
wow u had all that crap going on & it lasted about 4 hours and ur complaining? seriously???
how long did u expect it to last? large screen, 1 ghz processor and a constant connection online... i bet ur HD2 outlasts ur laptop
thats like saying, i filled up my gas tank before i left home, drove like a maniac, floored the gas pedal after every red light & stop sign but i expect my car to not run out of gas.
real world tests are more acurate... without all that on u should get a full day of "normal" usage...
secano said:
Ok, yesterday I put my battery to the test. I decided to use my phone non-stop until the battery drained. During the entire test I had running the following tasks on Task Manager:
Opera---with tap vibration enabled
Messages
Active Sync
Word Mobile
Hotmail
I had:
Push E-Mail (hotmail) "As items arrive" (receiving emails approx every 5-10 mins).
Backlight Automatically adjusted on, with both battery and external power set at 40%.
LeoCpuSpeed app running at 998 MHz.
Constant changing signal strength from 1-4 bars and H to 3G to E and back to H(Inside the lobby of a building).
Weather, Twitter, Facebook and everything else to be updated automatically, each one being set to update asap.
BsB Tweaks settings in the pics below.
Apps Installed: see pic below.
Also had some texting, about 30 messages from 9:30pm to 11:00pm with notification set to vibrate and ring. No phone calls
So, if you think your battery was bad...this is how mine did
Pretty much my battery did not last even 4 hours. Keep in mind I was browsing Facebook and XDA forums on Opera non-stop. Also noticed when the charge was at 8%, it started draining 1% per minute
My conclusion...I will have to get a spare battery cause a single battery can't handle my every day usage Have tried different Radios, but they all seem the same to me strength and signal wise. I haven't tried any other Custom ROM than KUMARS.
In case I forgot something I'll add it later on.
Click to expand...
Click to collapse
Stupid question, and this is something that we all as cell phone owner for the past decade should know.. did you train the battery? i get 24 hours out of mine, with contstant push email on 4 diff accounts, texting all day a few pix, a few sites visited
rysky007 said:
Stupid question, and this is something that we all as cell phone owner for the past decade should know.. did you train the battery? i get 24 hours out of mine, with contstant push email on 4 diff accounts, texting all day a few pix, a few sites visited
Click to expand...
Click to collapse
Sure did, the max I can get on normal usage is around 10 hours though.
Battery Training
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Moschdog said:
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Click to expand...
Click to collapse
+1
...........................
got my tmous hd2 launch-day... battery sucked so bad I cried (on the inside too). Returned it for another (hard as hell as I had to call corporate and have them call a store and make them hold one when some came in) after 2 weeks and all battery problems gone. 2 days easy with 1 charge. and I am a bit of a media whore: videos, podcasts, web, push, etc.
Moschdog said:
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Click to expand...
Click to collapse
mine sure did, the first day i got it, it went dead about 6 hours after i charged it..
2 weeks later and it was down to about 60% after a whole days use and it would die during the night if i didnt put it on the charger.
now its been about a month and now it will go a whole day and a whole night and still be in the 40%s in the morning.
I don't see the need to have all that stuff running continously but it seems that the battery lasted as much as it should. I close out all programs propperly when done but I have the screen at the brightest and still the battery lasts me 30 hrs on average. I don't think I could kill the battery in less than 4 even if I tried real hard.
currently using the rom bellow... not getting 10 hours on my phone... my life relies on e-mail. So few calls rarely any texts. But 4 e-mail accounts with each having a send/receive every 5 mins... with downloading the full e-mail. I don't know what to do...
You are correct that Li batteries have no true 'memory' but there is a bit more worth mentioning... Here is a great article on Li battery extension & calibration:
http://www.batteryuniversity.com/parttwo-34.htm
Moschdog said:
I do not believe the HD2's battery requires training. Older styles of batteries had something called a "memory effect", where a battery not fully depleted, then fully recharged, created a shortened cycle time.
Newer battery components, IE Lithium Ion, or Lithium Polymer do not have this characteristic. Accordingly, there is absolutely no need to "train" the battery.
Now the only requirement with the newer battery types, is to maintain a charge between 50-70% during long term storage (ie what your phone was charged to when first received).
Click to expand...
Click to collapse
my battery is horrible too, i cant last more than 10 hours without bareley using it. i took it off charge 7:30 a.m. took it to school, around 10 i texted a little bit used the camera to take about 10 shots (no flash), and i played bubble breaker for about 15 minutes. brightness was on 20...keep in mind after i close everything i fully close it through task manager.
around 11 my battery was at 65 percent. and i only USED the phone for about 25-30 minutes of light usage. i honestly dont understand how a battery can be this bad with a phone. the battery is HORRIBLE!!!!!
i got 3 different batterys exchanged so far, none of them work goood. i conditioned it as well... fully charged then fully drained then fully charged again
please help =( i dont even use my HD2 anymore because i HATE the battery, i strictly use my BOLD 9700 until i find a solution to the battery problem
NYC, the biggest issue with the HD2 battery is its low capacity (1230mAh), which is lower than most smartphones in general. Add the huge screen (a big battery draw all by itself) and the other power-hungry functions of a super-capable phone, and it can become very difficult to maintain a charge.
Now, in your case, I'd suspect that you have something that's updating data in the background, at least once if not repeatedly. Twitter, mail, weather, etc are all possible culprits. Even if they only update once in the morning (for example), they flip on your 3G connection which then remains on until you switch it off manually. Bluetooth and wifi also drain the battery quickly, even if they're just "on" and not being actively used by you.
rysky007 said:
Stupid question, and this is something that we all as cell phone owner for the past decade should know.. did you train the battery? i get 24 hours out of mine, with contstant push email on 4 diff accounts, texting all day a few pix, a few sites visited
Click to expand...
Click to collapse
Sit! Goooood battery. You're such a well trained battery, yes you are, yes you are! If you keep my phone running all day I'll give you a nice 1 amp charge, yes I will, yes I will!
couldn't help it.
-Tony
I get from 7:45am to 2:00am pretty regularly out of my phone--push emails, IMs all day, about 200 messages sent/received, 120 min of calls, and probably 2 hours of browsing. I have wifi connected from 6pm-2am.
zimzoom said:
I get from 7:45am to 2:00am pretty regularly out of my phone--push emails, IMs all day, about 200 messages sent/received, 120 min of calls, and probably 2 hours of browsing. I have wifi connected from 6pm-2am.
Click to expand...
Click to collapse
That is really hard to believe...specially the wifi from 6pm to 2am
My phone drops to 11% after 24 hours of doing nothing with it besides fiddling for about 10 minutes. The signal bar is 3 ~ 4 bars at all times on a 2G band. I'm not certain why it's this crappy even though I pretty much leave it on standby. Any ideas?
I know that battery life has been a hot topic among EVO 4G users. I have seen both sides of the spectrum with some getting an entire day or more out of their phones, while some, like myself, see 5-7 hours at the most. I finally went to my local Sprint Store/Repair Center where I was told that my battery life was "normal" and that EVO users should "except to charge your phone two or three times a day". Then the rep handed me a spare battery at no charge to me and told me to have a nice day.
So, here's the deal. I am a non-rooted, non-anything user. Is the only way to see a 24 hour charge to root my phone and flash a custom ROM? He did mention that Froyo would "increase your battery life a lot". Whenever that's going to happen. Sorry to add another thread on battery life, but I want to make an informed decision, as well as know if this rep was just brushing me off with 5-7 hour being "normal" and then handing me an extra battery for free.
So you got a free battery and all it cost you was having to talk to a fool? Sounds good to me.
I routinely charge every other night with my moderate usage. 5-7 hours would only make sense if I was streaming Pandora all day with 1 bar.
5-7 hrs? are you constantly downloading things? heavy usage? or just on stand-by most of the time? if your using your phone casually, like 3-4 calls ~ 15-20 min each call and have emails coming in at about 2-3/hr and you surf the web about 1hr/day on your phone... 5-7 hrs is not very good... usually you would need to make calls that are 30+ min with heavy browser usage and be in a really ****ty signal area while playing games and texting every 5minutes for you to get such ****ty battery life... there are a lot of forums out there with tips/tricks in improving battery life so don't expect people to start posting them here as there are THOUSANDS of posts on battery life on androidcentral.com and other such sites...
good luck... you should be able to get at least 12hrs on one charge with little to moderate usage -- again google and read for forums out there as there is a TON of information.
I'm curious, are you in a 4G or 3G area? if you have 4G on where there is no 4G, your phone will constantly search for a 4G signal, same with wifi. I find that 3G is pretty fast where I live. 1.2MB down. so I never really turn on 4G or wifi. I've been getting about 14-20 hrs depending on use, but that was only the few times I made it through a day without plugging it in to add music, or try to root it (without success) and stuff. today I unplugged it at 9:40 am, and have been using it pretty heavy. about 15 minutes of streaming video, 45 minutes of music playback, 35 minutes of internet use, constant messaging, some pictures, google talk, fringe running, as well as qik in the background, actually all kind of apps pop up in the background. I am at 50% battery at 5:00 pm. I think that's not bad compared to the N1 I just sold. I will say that I think Advanced Task Killer, from the markets probably helps the battery life. I highly recommend it. make sure you set it up to auto kill apps in the background. I think I get a couple of extra hours this way.
Found on Android Central Forum: (and it works, I get about 15-18 hours)
CHARGING EVO BATTERY FOR MAXIMUM LIFE:
You can charge your battery the following way to see if that helps improve the battery life on your device.
1.Connect the phone to the charger and charge the device until the LED turned green with the phone powered ON
2.Disconnect the phone, and power it OFF.
3.Reconnect the phone to the charger, and charge the device until the LED turns green again.
4.Disconnect the phone, power it ON and then power it OFF.
5.Reconnect the phone to the charger and charge until the LED turns green again.
6.Power ON and use.
My battery appears to have the same issue as well. My backlight is at 8%, auto sync is disabled for all services, always on mobile data is disabled, my network is set to CDMA, I'm not overclocked at all. I've done all the other battery saving tricks and I've done all the battery charging tricks.
I played Raging Thunder 2 for less than half an hour this afternoon, and my battery dropped down to 58%. I'm aware that games are pretty intensive, but isn't this a bit much?
EVOKeith said:
I know that battery life has been a hot topic among EVO 4G users. I have seen both sides of the spectrum with some getting an entire day or more out of their phones, while some, like myself, see 5-7 hours at the most. I finally went to my local Sprint Store/Repair Center where I was told that my battery life was "normal" and that EVO users should "except to charge your phone two or three times a day". Then the rep handed me a spare battery at no charge to me and told me to have a nice day.
So, here's the deal. I am a non-rooted, non-anything user. Is the only way to see a 24 hour charge to root my phone and flash a custom ROM? He did mention that Froyo would "increase your battery life a lot". Whenever that's going to happen. Sorry to add another thread on battery life, but I want to make an informed decision, as well as know if this rep was just brushing me off with 5-7 hour being "normal" and then handing me an extra battery for free.
Click to expand...
Click to collapse
Holy ****!
I'm not a "heavy user" and I turn off all sync and radios until I need them. In this state the phone will still recieve phone calls and text msgs. I turn on either wifi or mobile network access when I want to surf and enable bluetooth when I drive to connect to hand free in the car. I turn everything off when I'm done using each. I have all the power widgets right on my home screen so it only takes a second to turn on/off as needed. Using this way I have gone over 3 days before charging several times. I know this doesn't work for everyone, but I'd rather decide when I'm going to use my phone for what than to be at the beck and call of my phone. YMMV
GaryJ51 said:
I'm not a "heavy user" and I turn off all sync and radios until I need them. In this state the phone will still recieve phone calls and text msgs. I turn on either wifi or mobile network access when I want to surf and enable bluetooth when I drive to connect to hand free in the car. I turn everything off when I'm done using each. I have all the power widgets right on my home screen so it only takes a second to turn on/off as needed. Using this way I have gone over 3 days before charging several times. I know this doesn't work for everyone, but I'd rather decide when I'm going to use my phone for what than to be at the beck and call of my phone. YMMV
Click to expand...
Click to collapse
Why don't you just use it normally and charge each night?
Just lazy.
Yeah, I've done all the tips and tricks and charge with power on the power off and charge, wash, rinse, repeat. Nothing works. I'm curious to see if the "free" battery they gave me will last longer.
I was in the same boat as you.
I have a fix and it should work.
turn on always on mobile data and enable auto sync
I posted a thread about getting rediculous battery and someone told me to do that and it worked.
go to settings all the way to the bottom to about phone Ans then choose battery. I bet ur up time and away time are the same. if they are that means something is keeping your phone on even tho the screen is off. doing what I told you above with a restart should fix the problem. also when you restart it its not going to instantly go to sleep leave your phone for like an hour and then check the up and awake time and it should be different. hope that helps.
and enable data when roaming.
Without specifics about what you have the phone doing and what kind of signal you have at home/work/etc, this is a totally irrelevant discussion. In my experience, the only thing that actually kills the battery quickly on the Evo or any other phone is poor cell signal.
I get well over a day on my evo... Running the netarchy kernel along with setcpu profiles. I have my phone set to clock to a max of about 384mhz when the phone screen is off.
I did the battery recharge trick and it helped a lot. I also have my display timeout set to 30 seconds.
5-7 hours before i rooted i would get 10-12 easy since rooting and loaded the.bakedsnackes rom i get avg 19 hours
sent with my evo from a secret place
Dump the Mail app and use Gmail to pop your accounts
If you are using the MAIL app that comes with the OS, that is likely the culprit. Especially if you are syncing more that one account. That can kill the battery very fast.
**try using the gmail app, and set it up so that it pops your pop mail accounts for you and pushes them to your phone. Then disable the built-in mail app and never use it again. This alone should double your battery life. It worked on the Hero and it works in the Evo.**
Do you by any chance use Yelp? I did an experiment last week with Yelp. Without the Yelp service running in the background, I would lose less than 8% of my battery overnight. With the Yelp service in the background, I lost about 50%. I've emailed Yelp to see if they can disable the Yelp service if I don't login to my Yelp account through the app.
Putting my phone on wifi made it so in the morning (4 hrs of low signal then to 50% battery), I put ti on the school's wifi and it was 80%.
tadtam said:
Found on Android Central Forum: (and it works, I get about 15-18 hours)
CHARGING EVO BATTERY FOR MAXIMUM LIFE:
You can charge your battery the following way to see if that helps improve the battery life on your device.
1.Connect the phone to the charger and charge the device until the LED turned green with the phone powered ON
2.Disconnect the phone, and power it OFF.
3.Reconnect the phone to the charger, and charge the device until the LED turns green again.
4.Disconnect the phone, power it ON and then power it OFF.
5.Reconnect the phone to the charger and charge until the LED turns green again.
6.Power ON and use.
Click to expand...
Click to collapse
I would avoid doing this. Lithium-Ion Batteries (found in the Evo and almost all other phones and laptops) can only go through a certain number of charge cycles. This method will not help prolong battery life.
Ye, my battery just went from 48% to 3% in about 3 minutes. Does anyone have any idea why this is?
Same problem here. From about 43 % down to 7 % while it started to charge the battery with the original charger. Afterwards the Tab didn´t charge at all. Battery drained and got very warm.
I Called Vodafone and was told i have to send the Tab in for fixing. I hate waiting for the tablet 3 weeks.
Update: After 2 hrs. of waiting the Tab cooled down and i was able to start it again. Did a factory reset and was able to charge again with the wall mount charger.
Just wanted to bump this as my battery life is miserable and it discharges really fast in standby...
My HTC desire has been on for 52 hours, used for a lot of stuff and is at 20% battery.
The Tab charges to 100%, I unplug it at night and in the morning it has lost approx 10%, I leave it a few more hours and it't down to around 60%. This is with no use and no apps running!
I've tried killing apps or leaving them in memory and it doesn't seem to make much difference. I also use setcpu and have a profile where the CPU speed decreases when in standby to conserve battery?!
If I charge to 100% and use it constantly, I get fair life out of it maybe 4-6 hours of light use - some streaming over wifi, web surfing, kindle, sudoku etc. If I use it occasionally or heavily though, it dies very quick and if I leave it at about 40% on the evening, it's generally dead in the morning.
Why does it discharge so fast in standby??
Check to see if it continually searching for a signal. I've noticed that mine loses a lot of power constantly searching for a signal, cellular and wifi. So, I used airplane mode to conserve power. Remember that it syncs to different services that require it to periodically download data. That may be your issue.
Sent from my SCH-I800 using XDA App
Thanks Chuck, I use it in airplane mode all the time and only use web over wifi (bought unconnected in the UK). Would it still be syncing for email etc? I didn't think it could turn on wifi and sync itself but only when I turn wifi on. I always turn wifi off when not in use. I had problems with widgetlocker asking for superuser permission quite often and that killed the battery quicker so I removed that until it's fixed and saw an improvement.
I'm not seeing the times that other people are though, losing at least 10% overnight and there's nothing really running.
I installed battery doctor and the times it quotes are high for different types of usage and nowhere near what I'm getting.
I'll make sure email and calendar are set to manual update, adjust brightness etc and see what happens. It seemed better when I first got it so perhaps an app is draining it? I installed system panel to monitor this but it's hard to see what is actually draining it, any recommendations anyone???
Quite disappointed at the moment, ipads barely drop 1% overnight and I'd rather not have to turn it off to conserve battery when it should maintain it in standby...
Check the task manager and see what application are running. Also you can go in settings- about device - battery use to see if a specific application is using your battery out of normal. Also , the display is generally the battery hog, you may have set it to a super high level. One last thing you may have the buggy 3d gallery app, and it will show in the battery usage.
P_
this is an interesting problem. its very similar to the Apple Macbook Air.
The Macbook Air was very thin - very nice looking - however it needed to depend on wifi to do most things.
the association i am trying to build here is this: the Tab needs a bluethooth headset so you dont get all your calls broad-casted over speakers and that could drain the battery a lot.
for me the battery drainage didnt seem so bad and its been on for the last 36 or so hours. the battery icon didnt look like it moved so much and i was impressed considering this thing had a gigantic battery. then i loaded up a utility that read the battery and said i had 59% so my jaw dropped. not only is the battery indicator wrong there maybe rogue processes casuing the battery drainage. and this is on 2.2 which is supposed to be somewhat battery efficient.
i dont know - frustration is what i am all about here with this thing. it seems that every time i buy a new android device i want to move to another android device. no one is getting the damn thing correctly setup.
Am at work right Now, Charged the tab overnight, just few minutes ago my battery said 60% left and now the tab is completely dead, wont turn on, I ll wait until i get home to charge, fingers crossed.
Change the battery...
Sent from my HTC HD2 using XDA App
shubh.27hd2 said:
Change the battery...
Sent from my HTC HD2 using XDA App
Click to expand...
Click to collapse
its been charging for 2 hours now and battery is not even warm to the touch plus no power yet... if charging is what you intended....
more than 3 hours of charging and counting and still no sign of life...This device is just 8 days old today from Brand new...
mudstuff said:
Just wanted to bump this as my battery life is miserable and it discharges really fast in standby...
My HTC desire has been on for 52 hours, used for a lot of stuff and is at 20% battery.
The Tab charges to 100%, I unplug it at night and in the morning it has lost approx 10%, I leave it a few more hours and it't down to around 60%. This is with no use and no apps running!
I've tried killing apps or leaving them in memory and it doesn't seem to make much difference. I also use setcpu and have a profile where the CPU speed decreases when in standby to conserve battery?!
If I charge to 100% and use it constantly, I get fair life out of it maybe 4-6 hours of light use - some streaming over wifi, web surfing, kindle, sudoku etc. If I use it occasionally or heavily though, it dies very quick and if I leave it at about 40% on the evening, it's generally dead in the morning.
Why does it discharge so fast in standby??
Click to expand...
Click to collapse
I am experiencing the same thing. Tab on flight mode and charged to 100% overnight. Unplugged at 9am, still on flight mode with no apps running, and it is 88% at 2pm.
12% drop in 5 hours with no usage whatsoever is way too much imo, comparing let say to my HD2, even not in flight mode. Wonder if they have a bad batch of battery for certain tabs........
Just wanna report back after my last post. When the percentage was dropped to 85%, I did a reboot. And guess what, now it displays 95% !!!!!!
5% drop from the morning til now in flight mode seems right and okay. Does it mean the tab is miscalculating the percent left?
PS.
I have been following the voltage in Spare parts this morning. All settings are the same (no apps opened, same screen brightness and in flight mode. Only turn on to record voltage)
94% - 4087mV
91% - 4081mV
88% - 4075mV
85% - 4067mV
But then after the reboot
95% - 4040mV
Man, I am not sure whats going on here........
shinji21 said:
Just wanna report back after my last post. When the percentage was dropped to 85%, I did a reboot. And guess what, now it displays 95% !!!!!!
5% drop from the morning til now in flight mode seems right and okay. Does it mean the tab is miscalculating the percent left?
PS.
I have been following the voltage in Spare parts this morning. All settings are the same (no apps opened, same screen brightness and in flight mode. Only turn on to record voltage)
94% - 4087mV
91% - 4081mV
88% - 4075mV
85% - 4067mV
But then after the reboot
95% - 4040mV
Man, I am not sure whats going on here........
Click to expand...
Click to collapse
let me jump in here again and share a similar deli-ma i had with my X10i.
while i was messing around with some custom roms i decided to stick to one that looked somewhat nice. well the funny thing is the battery indicator would always display 100% and for about 4 hours it would drop ever so slightly. then i removed the battery and put it back in -- the battery indicator showed 0% and i got a red light flashing ....
after screwing around with it for a bit i re-flashed the stock firmware from Sony-Ericsson and magically my battery meter and my battery worked fine.
so to sum up -- it maybe a software issue like the one i had on my SE X10i above?
What is wrong with almost everyone's obsession regarding battery life??
Oh my gosh I'm so tired of hearing everyone saying: I have switched everything off now and still only get 2 days of use.. Why??
If you want a weeks worth of battery life get 1" non-touch black & white screen phone.
If you want a awesome phone get a Galaxy Note, switch everything on, sync your social networks and mail every 10 minutes. Browse the web on the awesome 5.3" screen, play games and enjoy the phone to the full. So what if you need to charge it every 12hours.
Pikkie86 said:
What is wrong with almost everyone's obsession regarding battery life??
Oh my gosh I'm so tired of hearing everyone saying: I have switched everything off now and still only get 2 days of use.. Why??
If you want a weeks worth of battery life get 1" non-touch black & white screen phone.
If you want a awesome phone get a Galaxy Note, switch everything on, sync your social networks and mail every 10 minutes. Browse the web on the awesome 5.3" screen, play games and enjoy the phone to the full. So what if you need to charge it every 12hours.
Click to expand...
Click to collapse
2days hahahaha he said 2 days hahahahahahaha
1charge per 12 hours with 4.5-6 hours screen on for surfing and videos 2 hours music to work and back and if not music it is 720 video Dr.House and all the time wifi or 3g on!!! oh and 3-4 hours on a area with 0-2 signal and only G
life battery rocks!!!
Sent from my GT-N7000 using XDA App
2 days 10 hours with light usage (1 hour screen on time, automatic brightness, few 5 minute calls, about 20 notes, apps updating and some browsing over wifi) and still have 70% left.
It depends on the user. It surely has the juice to cope with heavy use. I couldn't be more happy
Bassarnis said:
2 days 10 hours with light usage (1 hour screen on time, automatic brightness, few 5 minute calls, about 20 notes, apps updating and some browsing over wifi) and still have 70% left.
It depends on the user. It surely has the juice to cope with heavy use. I couldn't be more happy
Click to expand...
Click to collapse
Cheater you Charged it for sure with a usb and forgot
Sent from my GT-N7000 using XDA App
Braxos said:
Cheater you Charged it for sure with a usb and forgot
Sent from my GT-N7000 using XDA App
Click to expand...
Click to collapse
No cheats here, just light usage
bassarnis, be a pal and tell us how the hell you managed that. even with light usage i'd be lucky to get 15+ hrs.
kebong said:
bassarnis, be a pal and tell us how the hell you managed that. even with light usage i'd be lucky to get 15+ hrs.
Click to expand...
Click to collapse
Roger that, entering good guy Greg mode.
First of all, the fist charges are important. Once i bought it, i updated it to latest 2.3.6 OTA and started using it till it shut itself off. Then charged it to full while off. Repeated this circle 5-6 times, maybe more. I haven't rooted the device yet. Its 100% stock running KK5. (Europe)
As i am in places where there is wifi available, i switched data off. In wireless and network options, i use "GSM only" mode. I left auto synch, auto brightness and gps on.
Widgets. I use the stock weather, stock digital clock, battery solo widget, stock task killer, stock news and weather, stock calendar. All those spread across 6 homescreens with 39 other app shortcuts on a black/silver background.
About the light usage. 5-6 times a day, i switch wifi on for synching. I read my mail and check my Facebook messages. Once i am done doing whatever i wanted to do that requires internet (update any app that requires updating etc.), i switch wifi off.
Lastly, before going to sleep, i close all active apps using the stock task killing widget and clear the ram. Overnight, i lose 2% battery.
Now that's what I call a battery obsession!
I just use my device as I see fit, and top up charge when I can - I have a Micro USB cable on my keyring, which means I've always got a charging cable on me.
Regards,
Dave
Sent from my GT-N7000 using Tapatalk
Bassarnis said:
Roger that, entering good guy Greg mode.
First of all, the fist charges are important. Once i bought it, i updated it to latest 2.3.6 OTA and started using it till it shut itself off. Then charged it to full while off. Repeated this circle 5-6 times, maybe more. I haven't rooted the device yet. Its 100% stock running KK5. (Europe)
As i am in places where there is wifi available, i switched data off. In wireless and network options, i use "GSM only" mode. I left auto synch, auto brightness and gps on.
Widgets. I use the stock weather, stock digital clock, battery solo widget, stock task killer, stock news and weather, stock calendar. All those spread across 6 homescreens with 39 other app shortcuts on a black/silver background.
About the light usage. 5-6 times a day, i switch wifi on for synching. I read my mail and check my Facebook messages. Once i am done doing whatever i wanted to do that requires internet (update any app that requires updating etc.), i switch wifi off.
Lastly, before going to sleep, i close all active apps using the stock task killing widget and clear the ram. Overnight, i lose 2% battery.
Click to expand...
Click to collapse
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
Yumunum said:
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
Click to expand...
Click to collapse
YEAH! i should be able to have wifi always on without it using any battery. thats right. screw the laws of thermodynamics, it should run for weeks even! having to toggle a button is just way too much work for me!
Yumunum said:
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
Click to expand...
Click to collapse
I partly agree with you. But we lack the battery technology to do all that. Not having enough signal coverage alone is enough to drain your battery. In some ways, you adjust yourself so as to keep using the phone for longer periods of time.
I must disagree with the fact that all the above i mentioned are garbage though. I am happy that i figured out a combination that will save me huge amounts of battery. I can still do all the heavy use i need, when i need it. With smart-phones there are options in settings to let you do just that. No-one forces you to do all that, just as no-one forces me to leave everything on.
Having lost 30% battery in 2+ days, means that theoretically if i kept using it like that i would get 7 days of one charge. For example, i know when i will receive an email, from who and when he/she expects me to reply. I hardly get any emails that require immediate response. If someone expects me to reply instantly, they send an sms, or call. Both of the options work fine using gsm only mode.
I also don't find important being logged in facebook 24/7. I 'll log when i have a break, before sleeping and when i wake up. Need to check the weather before leaving for work? Tap on wifi, wait 2 secs for it to connect, click refresh on the widget, done. It doesn't take more than 10 seconds.
I don't rush to turn off wifi or anything. I just use the battery juice and the phone's cpu on demand. The note is indeed a smart-phone, but with all it's features it is reaching laptop territory. I find that treating it as a laptop works better for my needs. Then again, thats just me. If your lifestyle demands all of the note's features on 24/7, then by all means leave them on. There are external 18000 mAh battery packs you can grab.
I'm running Cassies's Lite ROM and I can get between 5 hours and one week on a single charge. Just do everybody a favor and understand that this thing can go into sleep state for days.
If I leave it alone, nothing playing or syncing on the background I lose about 1-2% in 8 hours, so this could go on for days, even a week if you don't touch it.
Of course if the screen is on for only 15 minutes on 2 days, you're not going to have much power used.
During calls screen is off, yesterday I did a 1 hour call and lost less than 10% battery. So you can make several calls on 2 days and lose litlle charge.
If you play a 3D game with screen on at full brightnees, you'll deplete the battery in 5 hours.
It's no difficult to understand. battery life depends on what you do with the thing. Whenever the screen is on, it will consume power. How much depends on the brightness level and the color of the pixels displayed.
Syncing facebook / twitter / e-mail through 3G takes a lot of power too, specially when you're on a low signal area.
Anybody noticed the difference charging the phone while off versus charging it while on.
It looks to me charging while off makes the phone battery last much longer
it also takes much longer time to charge
ChromJ said:
Anybody noticed the difference charging the phone while off versus charging it while on.
It looks to me charging while off makes the phone battery last much longer
it also takes much longer time to charge
Click to expand...
Click to collapse
Yes thats a fact, it also happens with my girlfriend's galaxy s2.. With my note the other day, found out that even plugged by usb to the pc with intensive using, wasn't enough to charge the battery % and actually it was decreasing..
William Haven said:
Yes thats a fact, it also happens with my girlfriend's galaxy s2.. With my note the other day, found out that even plugged by usb to the pc with intensive using, wasn't enough to charge the battery % and actually it was decreasing..
Click to expand...
Click to collapse
My old iPhone 4 did that . I was downloading an app while having it plugged in into the wall outlet, and the battery just started going down (600+ meg download).
The note is a sloooowww charging device, that's for sure.
i always get over 2 days life out of mine. i never use wifi and i have gps on all the time. But what i do is i have the screen to auto and i use the stock task manager widget. With applications i always use the back button instead of home which 90% of the time closes the app. As a browser i use opera mobile as this has an exit button too. keeping running apps to a minimum seems to help my battery las well.
I'm getting amazing battery life.
And still going strong 11hrs with somewhat light usage and it's nowhere near 50% battery yet hehehe
Sent from my GT-N7000 using Tapatalk
i can get around 5 hours display time, wich is faaaaar better than sgs2. During the night the power consumption is 1% per 5 hours with wireless off or 1%/hour with wireless on. I'm on Rocket rom v12 which rocks!
Sent from my GT-N7000 using xda premium
Yumunum said:
I see things like this and I cringe... It's a smartphone. It shouldn't need all this garbage done to it to get good battery life. It shouldn't need toggling, everything should be on, push notifications should be used, and it should still get good battery life
Click to expand...
Click to collapse
I'm getting 3.5 days on a charge with moderate use.
I have 4 email accounts that are polled every 60 minutes.
I make a few calls a day and use the browser a little.
What seems to help is doing a force stop on apps that I'm not using like AP Mobile and Yahoo Finance.
Also, I am runnning KL7.
With light usage, few sync's a few calls ((4-5 min) some texts and notes and few minutes of gaming.. I get a around with 16+ hours of usage easily. I'm happy with the battery and the Note can definitely get on with a more aggressive battery usage...