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Hello guys!
It's nearlly my first posting here, but i'm reading this forum for quite a while now.
I finally got an Xda diamond and everything was ok the first couple of days, even the battery was satisfying. When i use it really much, the battery lasts for about a day, that's ok. But 2 days ago, suddenly the battery got empty from 100% down to 0% in 7 hours, although i did not use the phone much. I had a call for about an hour and that's it.
Knowing there are some possibilities to save energy, i followed some advice from this forum:
- took down the display light to stage 2
- switched off UMTS
- switched off GPS
- installed powermanagement.cab
- switched off RSS Hub auto-download
- made sure there are no applications running in the background all day
- made sure there are no data-connections like Bluetooth or GPRS running all day
I also installed PowerGuard v1.2 which told me, my Diamond drains about 65 mA, what seems to be a proper value, comparing to other peoples around here.
This morning i took the Diamond off the charging cable at 8:00 and it switched off at 16:00. I only used it for a 1 hour phone call again, thats all. I did not do anything else with it.
I don't unterstand, why it lasted much longer the first couple of days. Anybody have an idea?
Thx so far!
1. Check with Task Manager Cpu proccess
2. Hard Restet ?
I have the same problem AND additionally sudden softresets.
The battery is defect. I will buy a new one and o2 will refund the money.
wedge210483 said:
... But 2 days ago, suddenly the battery got empty from 100% down to 0% in 7 hours, although i did not use the phone much. I had a call for about an hour and that's it.
Click to expand...
Click to collapse
The battery is not supposed to get empty to anywhere near 0%, it can be damaged if it does. The phone is supposed to turn off to prevent that happening.
If killing tasks does not help, maybe you just got a bad battery? Edit: ^^^ What he said!
Here's a useful link for information on Li-ion batteries: http://www.batteryuniversity.com/parttwo-34.htm
Hi!
I recently found the solution. My sim-card was too old! I had been using it for about 4 years. A couple of days ago, I ordered a new one from my provider (O2 Germany) for free. Since I changed the sim-card, I never had any problems with the battery anymore.
Why didn't I find this advice anywhere?
Cheers
Your SIM card was "too old"? My technical prowess is nothing to brag about, but even I can tell you that that could hardly have been the cause.
Older Sims seem to drain more battery power...
I have to agree with H3x ... I don't see how a SIM card would have any effect on battery life.
As a point of reference, I'm very satisfied with my battery life. I charge it for an hour or two a couple times a week. I am diligent about turning off WiFi, Bluetooth, and running apps when not in use, but other than that I don't do anything special.
With GSM band manually selected in phone options and moderate use, my diamond can last over 2 days, with "auto" band selection it barely lasts a day...it just drains stock battery so much, even in standby...but I still can't be happier with my device, no matter what
Decided to watch battery more carefully over PowerGuard, some things started to make more sense...
Htc86 said:
With GSM band manually selected in phone options and moderate use, my diamond can last over 2 days
Click to expand...
Click to collapse
Yeah, I have that selected too, so I'm sure that helps. Maybe the OP should try it?
i have searched on the forum and found no one with the same symptoms that i am experiencing. i have had my kaiser for about a year now and have been happy for the most part with battery consumption. but about 2 weeks ago my battery started draining super fast when i'm talking on the phone. even with a bluetooth and the screen off. i don't remember changing any settings at all. for a 10 min phone conversation i can use 25% or more of my battery. i purchased a cheap extended battery a few months ago and i get the same results regardless of which battery i use. i purchased the phone with WM6.5 pro from PDACorner/ abusalza (ROM version: PC.Ultimate.V17 WWE)already installed. i really like the ROM and all the apps installed and i'm not reall excited about flashing a new ROM. any help will be greatly appreciated.
Could be that both batteries are bad.
My battery started to drain very quickly last June, so in Sept. I bought a new battery,( cheap one, on line ) worked great. I used both batteries back and forth to make sure that I always had a fully charged battery.
Last Dec. My phone started turning off for no reason, ( like the battery was dead ) so I stopped using the old battery and just used the " new one ". About a week later my phone went into a start up; reset loop. It would not boot without resetting. I figured the battery was old 3 months old, it couldn't be the battery. I tried everything else short of buying a new phone. Finally I went on line and bought another cheap battery. The phone has worked perfect ever since.
Moral of the story ? Don't discount the battery just because it still seems new. I got what I paid for from my $12 battery, a little over three months.
that all makes sense, but the battery only drains this fast when i'm on the phone. nothing else; wifi, movies, even gps drains as fast as using the phone...
Same issue here..
Strange thing is that when on the phone battery is draining very fast and most of the time the call is cut off. When I start the phone again I still have power and can work on my phone, when I try to make another phone call the phone cuts off in one second. I hear about to batteries, where is the other one and can I replace it?
Well if you have a custom rom on the phone the radio might need to be changed.
Very true, try running the stock radio for your device/carrier and see if you get the same results. For me personally I've noticed a difference in battery usage especially during calls depending on the radio. For me on AT&T in the US the original radio seems the best.
Hello all,
I have a brand new Galaxy Tab ( three full charges so far) - and I get quite different results re. battery life then others.
Then again: I read some posts with really long batt life, and others with shorter.
I have Gingerbread - Overcome RC1 installed, and I in about 1.5 hours use ( no 3G, some wifi, medium backlight; time spent mainly installing / removing apps, some games, some email and web browsing) I am at 75%.
When the unit is fully charged, after I switch it on it goes to 99% immediately (I see 100% maybe for less than a minute). This morning I am at about 65% battery life, with about 2 hours use. ( I have erased the battery stats after installing the Overcome rom).
When not using the unit for several hours (for example over night): I do a complete shut-down.
Now others seem to get significantly longer run times.
Is it possible that there are (at least) two versions of the GT, one with better battery the other one with weaker battery?
Or do I have a defective unit and should I try to return it? ( I am within the 30 days return policy, and could go for an exchange)?
Or is my experience totally normal, and the "really long" battery lifes are more the exception?
Or will my battery life get longer after a few more charge / recharge cycles?
I would appreciate any feedback!
Thank you!
People claiming better battery life are running custom firmwares, have their cpu moderated, and have pulled all kinde of tricks to achieve this.
Also, your battery has to "settle"
Sent from my GT-P1000 using XDA Premium App
Thank you for the reply.
I am also using a custom firmware but no other tricks (slowing CPU etc.)
So my unit is then probably normal?
How long does it take for the battery to reach full capacity?
I think I will return the GT for replacement...
Another update.
Yesterday, I have done a full recycle ( fully empty the battery and fully recharge).
Today, when I started to use it, within 50 minutes the battery level went to 80%.
I have removed now all apps, all widgets etc ( factory fresh gingerbread) and I will fully charge and then reset the battery memory within CW.
Lets see how that goes... but I start to worry now as my return period has just passed ( 14 days from purchase) - so I may be stuck with a unit with a battery problem...
I would reccomend to stop delete battery stat everytime now and then. Another thing is please wait few cycles so battery will settle down as someone said. When I got my SGT for the first time I was quite worried that my battery drain so quick. Simple internet browsing over wifi last for 3-4h. Later on I found tha some apps sync itself constantly, name pulse, weather widgets, rss readers etc. Ive check the apps and disable auto sync. Also moving from 2.2 to 2.3 gives me huge boost and make battery last muuch longer.
Sent from my GT-P1000 using XDA App
Thank you. Lets hope you are right.
Install the version beta2. The battery on it lasts much longer. I checked and returned to the beta2 since RC1. Only first JJ4, then JQ1 and beta2. My English is not good, so I apologize if I wrote something wrong
Wow. That is an interesting theory. I will definitely test: you well may be right. I have used beta2 only for a short time, but I think the battery did last longer...
In beta2 worked for 11 hours. The RC1 is less than 7 hours. A friend has the same. Both went back to beta2. Wi-fi enabled, much inernet ,radio, Google mail, mp3. Used on a single chargefor more than iPad
Same problem here..
Strange it is. .
So far i know. .
Battery life is always been the hillarious thing ever, on a smartphone..!!!
Hehehe. . .
Sent from my GT-P1000T using XDA Premium App
For me it has always been a big differens in battery life after a couple of weeks when the battery is performing better.
In the beginning with stock rom i barely got trough one day with heavy use.
Now its no problem getting trough two days of heavy use. Using Overcomes (rc1) latest rom.
Gadgetguy2005 said:
Thank you. Lets hope you are right.
Click to expand...
Click to collapse
I would deffinitelly recommend going back to beta2 as in my case on rc1 I was able to get maximum 7-8 hours when switching to beta2 gave me at least 12 hours. At the moment when not extensively using the tab I am able to get around 60 hours.
ps1
as someone mentioned before pleae stop erasing batterystats.bin
ps2
Do not try to install beta2 on rc1 as it wil cause you a lot of problems. Start with jq1 at least and then beta2.
Hello,
I had the same problem too, but I have resolved it now.
I started by browsing this thread:
http://forum.xda-developers.com/showthread.php?t=986067&highlight=false+status
Then I opened up my tab and disconnected battery for 30 mins. Reconnect and close up and that fixed the problem permanently.
For some people, flashing overcome 2.0 rc1 solved their issues.
Hope that helped.
jpanggy said:
Hello,
I had the same problem too, but I have resolved it now.
I started by browsing this thread:
http://forum.xda-developers.com/show...t=false+status
Then I opened up my tab and disconnected battery for 30 mins. Reconnect and close up and that fixed the problem permanently.
For some people, flashing overcome 2.0 rc1 solved their issues.
Hope that helped.
Click to expand...
Click to collapse
Link does not work. Please correct if you can.
Link Fixed
Thank you all. I will just wait for the next overcome release: i hope tht will give longer run times.
hey everyone,
firstly, i just wanna say that the HTC Incredible S is a solid and terrific device, previously owning an iPhone 4 i might like the HTC better, except for some things...
The battery:
i read some reviews before buying and every reviewer seemed to love the phone and what the battery has to offer. I've owned the phone for a week, and charge it through the USB cable, connected to my PC, and sometimes the wall socket.
But it seems to me that the battery is a bit short.... if i want the battery full i will let it charge overnight, the next day i powered it on, sent a few texts and listened to half a song and the battery has already drained to 70%, coming to this from an iPhone 4 is disgusting.
I've got Auto-Sync and background data working, i like push notifications for Emails and Facebook and i like the weather to update on its own, also HTC sense incase i need to do things remotely, everything else has been set not to sync.
One of my favorite features is Auto Brightness, which is enabled on default, but when i check battery use it says that 70% has gone to the display, 12% cell network and everything else. I have a task killer that kills all processes when i turn the screen off..
Any help??
Wiping the battery stats a few times helped me, I used to recharge the phone to full battery and after unplugging it from the charger, it would drop to 94% in a few seconds...Oh, after 2-3 weeks, not after a week!
Also I get twice the battery life on Cyanogen 7.1, than on any other Rom I've tried...I get at least 2-3 days with good usage, tons of mails, sms, calls, weather apps etc. Wifi and BT always on. No juice defender or anything like that...
Dropping to ~95% can also be normal though. To preserve the battery the charging circuit should cutout when it reaches 100% charge and let it discharge to 95% before turning on again.
If you do wipe the battery stats make sure you read some guides and do it properly as I've found that more often than not it will have a detrimental affect (from needing to charge before it has fully discharged, or needing to reboot etc).
katu2006 said:
Wiping the battery stats a few times helped me, I used to recharge the phone to full battery and after unplugging it from the charger, it would drop to 94% in a few seconds...Oh, after 2-3 weeks, not after a week!
Also I get twice the battery life on Cyanogen 7.1, than on any other Rom I've tried...I get at least 2-3 days with good usage, tons of mails, sms, calls, weather apps etc. Wifi and BT always on. No juice defender or anything like that...
Click to expand...
Click to collapse
wipe the stats? sorry im still new to android but so far so good, im impressed with everything else in the incredible s, its very snappy and has a bigger screen vs iPhone 4.
if it helps, i have the phone fully turned off if i charge it overnight.
also, i read on another forum that while it's still brand new it needs to run a few charge cycles to strengthen the battery, if that is true.
It always drops to 95% when the battery is fully charged. S-ON Incredible S is not allowed to wipe battery status. Should I unlock it?
Yes, I forgot to mention...to wipe the battery stats you need to unlock the Hboot...If you have Hboot 1.16.000, then the only option is this:
http://forum.xda-developers.com/showthread.php?t=1337105
Unlocking the Hboot is giving you a few benefits, you get to install the CWM recovery and do a full backup of your Rom...Without unlocking the Hbtoot, if your Rom crashes, you can't flash any Rom so you have to send it back to HTC Service ...With the Hboot unlocked you can install custom Roms, you can restore a full backup, you can flash GAPPS etc, wipe battery stats directly from recovery etc etc...
So many benefits...
Now back on how to wipe the stats...The principle behind is simple, if 100%=4.3V and the stats are incorrectly set for 100%=3.9V, then you're never actually recharging the battery to full capacity, which is rubbish...
The way I do it is this - charge to 100%, boot into recovery and wipe the battery stats. Now use the phone until it's shutting down and then charge to 100% again.
Very important is to avoid rebooting the phone after the stats were wiped until the phone is fully recharged. Here is a thread about this process:
http://forum.xda-developers.com/showthread.php?t=1359395
---------- Post added at 12:40 PM ---------- Previous post was at 12:29 PM ----------
Jess95 said:
wipe the stats? sorry im still new to android but so far so good, im impressed with everything else in the incredible s, its very snappy and has a bigger screen vs iPhone 4.
if it helps, i have the phone fully turned off if i charge it overnight.
also, i read on another forum that while it's still brand new it needs to run a few charge cycles to strengthen the battery, if that is true.
Click to expand...
Click to collapse
In my view, recharging while the phone is off makes no difference.
Yes, it's true. With all my Android phones I went through the same thing, first week or so, the battery was rubbish, but after about 2 weeks it improved a lot.
yeah, i've had it for around one week. so i might take your word for it and give it a chance, maybe for 2 weeks. i was thinking of bringing it back to the store but i'll give it a chance.
a part from the short battery at the moment it's a pretty terrific phone and i like it more than the iPhone 4.
Once the battery is conditioned, phone is rooted, custom Rom installed, bloat frozen out or uninstalled, then you can expect your phone battery to last a good full day with regular usage. No need to switch off when charging over night.
Well its incredible enough for me
It lasts a day, which is just right for me haha
Did u remove the USB immediately aft the charging?
Sent from my HTC Incredible S using XDA App
well i've had it for almost 2 weeks now. I charged again overnight last night and used it to listen to music and play NinJump/Bejewled on the way home today, battery uptime was just over 30 mins and the battery was down to 70% remaining. That's a bit quick if you ask me.
Not sure what's happening with your phone...but my Inc S has really good battery life, similar to Iphone 4...
At the moment is not rooted (that's why I couldn't take a screenshot) and it's on stock 2.3.3. With BT and Wifi always on, with tons of e-mails daily, browsing, calls (at least 20 minutes per day), tons of messages, etc etc
Screen brightness is always set to maximum and I get at least 2 days battery life, see attached photo...
I'm not playing games or listen to music...so I can't test that side of things and maybe that's where the problem lies.
What's your Battery Usage app saying?
Is there anything unusual listed there?
Jess95 said:
well i've had it for almost 2 weeks now. I charged again overnight last night and used it to listen to music and play NinJump/Bejewled on the way home today, battery uptime was just over 30 mins and the battery was down to 70% remaining. That's a bit quick if you ask me.
Click to expand...
Click to collapse
Maybe try disabling the Optus bloatware. Had a bit of an improvement when I did it to mine. Also be mindful about what apps are running in the background constantly, they could also have an impact on battery life. Screen is a huge battery killer if its constantly on, autobrightness can help slightly if you haven't enabled it already.
Thanx everybody for the replies
katu2006 said:
Not sure what's happening with your phone...but my Inc S has really good battery life, similar to Iphone 4...
At the moment is not rooted (that's why I couldn't take a screenshot) and it's on stock 2.3.3. With BT and Wifi always on, with tons of e-mails daily, browsing, calls (at least 20 minutes per day), tons of messages, etc etc
Screen brightness is always set to maximum and I get at least 2 days battery life, see attached photo...
I'm not playing games or listen to music...so I can't test that side of things and maybe that's where the problem lies.
What's your Battery Usage app saying?
Is there anything unusual listed there?
Click to expand...
Click to collapse
That battery usage sounds awesome! I have mine on Auto Brightness and WiFi turned off but its nothing like yours. My battery usage app says most of it has gone to the brightness, of course that percentage goes down when i start opening apps.
edit: im also using the stock Android 2.3.3 installed from the factory. and disabled my Advanced Task Killer, battery is still the same, but the phone now lags a lot less. so thats a plus for now.
Nonverbose said:
Maybe try disabling the Optus bloatware. Had a bit of an improvement when I did it to mine. Also be mindful about what apps are running in the background constantly, they could also have an impact on battery life. Screen is a huge battery killer if its constantly on, autobrightness can help slightly if you haven't enabled it already.
Click to expand...
Click to collapse
When i first got the phone i noticed Optus loaded it with rubbish apps i'd never even touch. I disabled auto updates for the bloatware and forced stop for all the ones running. it doesnt look like i can remove them though :\
unknown2011 said:
Did u remove the USB immediately aft the charging?
Sent from my HTC Incredible S using XDA App
Click to expand...
Click to collapse
Yes, after i charge it for some time i always remove the usb cord. cos its finished charging, right?
Hi when you get such good battery life, could you show us how long your screen's on for?
do you get good reception where you live? i find that seems to drain most of my battery.
Thanks
katu2006 said:
Not sure what's happening with your phone...but my Inc S has really good battery life, similar to Iphone 4...
At the moment is not rooted (that's why I couldn't take a screenshot) and it's on stock 2.3.3. With BT and Wifi always on, with tons of e-mails daily, browsing, calls (at least 20 minutes per day), tons of messages, etc etc
Screen brightness is always set to maximum and I get at least 2 days battery life, see attached photo...
I'm not playing games or listen to music...so I can't test that side of things and maybe that's where the problem lies.
What's your Battery Usage app saying?
Is there anything unusual listed there?
Click to expand...
Click to collapse
tzuyang said:
Hi when you get such good battery life, could you show us how long your screen's on for?
do you get good reception where you live? i find that seems to drain most of my battery.
Thanks
Click to expand...
Click to collapse
ok atm my incredible s is saying 4 hrs 26 min uptime and 1 hr 21 min awake time, 50% left. my signal here is great, the speed of the internet even beats my ADSL 2+ sometimes. should i be thinking of warranty back to store?
Before i rooted my phone i was charging my phone twice a day - this was nothing new to me as i had been charging my 3gs at least twice a day for the past two years.
However like somebody else has said, once the phone is rooted and all that optus junk has been deleted it lasts a lot longer. And you can notice the difference, my phone has been rooted for 2 days now and i have been on it none stop, modding all the appearence and downloading apps. I have been using it a lot more than i was before it was rooted and it has lasted at least twice as long. So for battery usage i should deffo root. Its HTC sense/screen that hammers your battery. Go look at battery usage and yourll see what i mean.
Also, i know this might sound stupid. But charging it through a wall socket (for me) seems quicker to charge, and seems to last longer than if its charged through a laptop/PC. Although ive thought this for my 3gs as well. If its actually true i dont know haha.
shields360 said:
Before i rooted my phone i was charging my phone twice a day - this was nothing new to me as i had been charging my 3gs at least twice a day for the past two years.
However like somebody else has said, once the phone is rooted and all that optus junk has been deleted it lasts a lot longer. And you can notice the difference, my phone has been rooted for 2 days now and i have been on it none stop, modding all the appearence and downloading apps. I have been using it a lot more than i was before it was rooted and it has lasted at least twice as long. So for battery usage i should deffo root. Its HTC sense/screen that hammers your battery. Go look at battery usage and yourll see what i mean.
Also, i know this might sound stupid. But charging it through a wall socket (for me) seems quicker to charge, and seems to last longer than if its charged through a laptop/PC. Although ive thought this for my 3gs as well. If its actually true i dont know haha.
Click to expand...
Click to collapse
sounds just about right. my iPhone 4 needed a charge like once every 2 - 4 days, i thought it was awesome. On the Incredible S it says that 62% of the battery usage has gone to display, with very little apps on the list.
The optus apps are just sitting there. Because im on Amaysim i can't exactly use them properly because you need an actual optus account. ive tried opening some of the optus apps, they're mostly just web links and theres a Mobile TV and a Music Store app i believe, but i never at all use them. so they cant be consuming any data, memory or battery or anything, right??
Im still unsure about 'rooting'. Im guessing it's android's version of the jailbreak or a godmode on the device? i might need some help on it, i know how to flash windows mobile and jailbreak iTouch devices easily.
But then again, a lot of people have bought this phone, they cant all be experiencing terrible battery life and i dont think every user would have a root on their device.
I bought it from DickSmith here in Aus, the guy there told me there's a 1 yr back to store warranty. The phone is solid and one of the best phones i've ever had, plus a good price tag on it, its a shame to let a weak battery spoil it.
im thinking of returning it, but i heard somewhere it needs a couple weeks to strengthen the battery, if that's the case then there's no point getting a new one only to wait longer, ill give it a little more time. Plus HTC is releasing 2.3.5 software for the Incredible S soon, and wikiPedia states that it's got "Improved battery efficiency". but ill still keep root in mind for when i get more use to the device.
tzuyang said:
Hi when you get such good battery life, could you show us how long your screen's on for?
do you get good reception where you live? i find that seems to drain most of my battery.
Thanks
Click to expand...
Click to collapse
Yes, about 40min to 1hour display on... sometimes more...I will attach a screenshot once I get throughout the whole battery.
Yes, generally good coverage and mostly 3G...I'm on Optus.
My phone has been rooted before, but now it's on stock Rom as an experiment...
I would strongly advise on rooting, it changes the phone completely.
And remove any animation (live wallpapers) those are killing the battery.
Also found one more thing. If you've got Facebook installed it refreshes every hour, i set mine to never refresh, but you can still receive notifications
But i still don't get why the battery drains soo quickly, even on standby.
edit: found one more thing.
uptime and awake time. when i turn the screen off and awake time should stop counting as the phone is locked and im not using any apps, right?? in some cases i've noticed the awake timer still counts.
example: awake time will read 1:52:39, turn the screen off at this point. go back a couple hours later it's been counting as awake the whole time, and has half battery life it did eventhough i haven't touched the device since locking it and turning off the screen.
in some cases the awake timer will not budge when i lock the phone and turn the screen off and still find the same amount of battery life remaining when i come back.
I use to be able to get 4.5-5 hours screen time, but now I am only get like 2.5 hours at most. My usage and location has not changed, nor as apps or rom. So, I am not sure what happened. Is there an app that can tell me what is happening? I am running xdabbeb rom(version before 2.0). I Friday installed Dori 7.3 kernel, but no help there. I will try anotehr rom, but I am wating for 25b to come out and tested before trying. Already had the phone replaced once for battery(and headphone port) related issues, and another time for different issue(follies of getting a refurbished phone from VZW), and I really don't want to get another replacement, too much bad luck right now. Thanks
bigsnack said:
I use to be able to get 4.5-5 hours screen time, but now I am only get like 2.5 hours at most. My usage and location has not changed, nor as apps or rom. So, I am not sure what happened. Is there an app that can tell me what is happening? I am running xdabbeb rom(version before 2.0). I Friday installed Dori 7.3 kernel, but no help there. I will try anotehr rom, but I am wating for 25b to come out and tested before trying. Already had the phone replaced once for battery(and headphone port) related issues, and another time for different issue(follies of getting a refurbished phone from VZW), and I really don't want to get another replacement, too much bad luck right now. Thanks
Click to expand...
Click to collapse
Install a wakelock detector, see what is keeping your phone from sleeping....
I am starting to notice idle battery life isn't bad for me, it's the on screen battery life. I usually have sync off, gps off, data off(at work) with wifi on, and screen set to 40%. So, I am not sure how people are getting 5-7 hours when I am getting around 3 hours.
I'm on my 2nd refurb (screen issues) and this one has sucked compared to my other two. I live in a weak signal area but I used to get 4 SOT hrs and+ 18 hrs uptime but now I get can barely get 2.5 hrs and 14 hrs uptime. I also have more heat with this phone. Don't know if verizon changed anything or if an app changed but I've experienced it on stock and XDABBEB 2.0 with multiple kernels which leads me to think it's network related for me. YMMV.
Just wanted to say, back when the phone first released and I bought it, I use to get the 5+ hours of screen on time. Now that I am on 4.4 and just updated to the new release the other day, I am definitely getting crap battery life. I believe it's been like this for a while, but definitely can barely make it through a day on moderate usage now. I am sitting at 28% battery left, with total 12 hours of usage, Screen on 17% with Screen on time of 1hour 24mins.
Hmm,that isnt normal yesterday i had 7,5hours
I have lost about 30% or more of my battery life since I got this phone a year ago. When it was new, 4 to 4.5 sot was pretty common. Now 2.5 to 3. I know 4.4 had some negative impact on my battery.