Database Develop

Significantly improve battery life

Hi all,
After 2 days of testing this tweak, I have booked really good results with my Diamond.
The phone has been on and not connected to charger or computer for over 48 hours now, and the battery has dropped only to 50%. That's right, two full days and nights of stand-by time, with an occasional call here and there, a couple of text messages, and reading some email.
Before this tweak I had to charge the Diamond already after 24 hours or less.
So if you have low battery life problems, give this a go:
Advanced config tools -> disable the setting "GPRS auto attach"
Read about this setting here: http://forum.xda-developers.com/showthread.php?t=395301&highlight=GPRS+auto+attach
Have fun and enjoy the longer battery life

But this has been discussed already and is only any good if you don't rely on GPRS a lot throughout the day surely? I mean I use Exchange and I'm sure it wouldn't work for me if I tweaked this setting.

Works great if you dont use the phone all that much but doesnt make much of a difference if you do make calls, send and receive sms texts..email send and receive etc etc.
Ive enabled that tweak and i still find the battery to be utterly rubbish for a phone of this power. Sure it helps conserve some of the battery but i can guarantee you that by 7pm tonight my phone will be dead...like it happened to me yesterday...went to work yesterday battery was 100%...made 3-4 calls...in total spent about 30 mins on the phone...browsed the internet for about 20 mins...sent and received 30 texts...watched a few youtube vids...checked my email a few times...not really heavy usage but by 7pm my phone was dead.
Not impressed with HTC and their monumental screw up with this battery..900mah is just not enough for this device if you want to use it properly that is. You would have thought they would have learned from Nokia when they first released their N95, that had a terrible battery on it as well...although with the n95 8gb the battery is much much better. Why they felt it only needed 900mah is quite beyond me...plus the battery gets hot which proves to me that the battery is not up to the job imo. Luckily the phone is good or else id have sent it back by now...guess ill have to wait for the extended battery to make an appearance. In fact i find the battery so rubbish that ive had to order a spare usb synch cable so i can charge my phone here at work.

Guys, if you want to substantially improve your battery life, go with a newer 1.37 ROM.
The older 1.35 ROM has serious battery life problems, there isn't much you can do about it without to cripple full functionality.

Where can i get the 1.37 ROM?
It isn't available in the e-club on htc.com

It's linked in the Diamond ROM Development forum.
You need to install the developer version of the HardSPL first, then install one of the 1.37 roms - I'm using the official HTC HK-English one with the 1.37.707.1 rom in it.
Works a treat for me - though I haven't had it on long enough to test battery time extensively yet.

I'm on the 1.37 rom, was on the 1.34 with my first unit and the battery is much better. I'm also noticing that the battery improves with 'age'. Plus I've got the dock on the way when it's released so that will help things no end I'm sure. When I'm in the car I shove a normal mini usb cable in from my Sony CD player and of course the upside of that is it will also play my music too instead of using USB drives. At work I use a spare USB and plug it in.
The battery is poo but having worked it in to a routine like that I hardly notice it now.

Unhooked my Diamond last night 22.00-ish from the usb cable and while I am typing now the battery is still more than 80% charged.
Texted alot today, called approx. 30 mins, checked my e-mail several times and played around with google maps for 20 minutes or so.
I did not tweak anything except that I flashed the 1.37 ROM and installed the newest Google-maps thingy.
So I can confirm that the new ROM saves alot of energy and that the battery-life gets better in time sounds also plausible.
With the 1.35 ROM the battery lasted 12 hours max with the same activities.

I've found that after a few days the battery is actually better than it was wen new. Must be that charge/discharging it a few times has helped...
R

Spawn12 said:
Ive enabled that tweak and i still find the battery to be utterly rubbish for a phone of this power. Sure it helps conserve some of the battery but i can guarantee you that by 7pm tonight my phone will be dead...like it happened to me yesterday...went to work yesterday battery was 100%...made 3-4 calls...in total spent about 30 mins on the phone...browsed the internet for about 20 mins...sent and received 30 texts...watched a few youtube vids...checked my email a few times...not really heavy usage but by 7pm my phone was dead.
Click to expand...
Click to collapse
actually I find your usage is a lot. during the day i will make one or two phone calls say 10 minutes. send an average of 5 sms texts and maybe check my email for a minute or 3. what takes most of my battery is when i read an ebook or do a game.

sandervanzijl said:
actually I find your usage is a lot. during the day i will make one or two phone calls say 10 minutes. send an average of 5 sms texts and maybe check my email for a minute or 3. what takes most of my battery is when i read an ebook or do a game.
Click to expand...
Click to collapse
Maybe it is but for me i dont think its that high...as i said my nokia n95 8gb would last a good day or 2 before going completely dead and thats with the sort of usage that i described earlier. Anyways i have a synch cable coming which ill keep at work to charge the Diamond.

hey battery life is better after this tweak. but my 3g logo has changed... it's now in some greyish box... anyone know what this means?

I think this means that the network knows it's available but you haven't attached to the data service. I used to get a similar greying out of the globe icon on my P1i if the net knew it was there but I had unattached manually.

Hi i am novice with my HTC touch diamond & i am also facing the same problem of battery life.
you've shown some solution over there in your post. please, can you tell me where in my phone i need to go to apply this settings.
hank you

Problem: very weak battery, even for the diamond!

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?

Rapid battery drain (under 7hrs)

Hi all,
over the last 2 weeks i have noticed my diamond getting pretty damn hot on random occasions and really chewing through the battery, i have run task manager when this occurs but no process is shown using alot of CPU.
I have read alot of threads on here descibing similar symptoms, some are just people who have wifi on or using CPU intensive applications, this i expect. But a few other users have described symptoms similar to mine where they are not using the phone and nothing appears to be running.
I am getting the problem with both my original HTC battery and the 3rd party spare i brought.
From reading the board the only definite cure seems to be a hard reset.
What im really after is any suggestions you people may have that can help me determin the actual cause of the problem, for example is their any software that will log CPU usuage over time or other diagnostic ideas.
thanks for your time

checking email regularly?
rumpleforeskin said:
Hi all,
over the last 2 weeks i have noticed my diamond getting pretty damn hot on random occasions and really chewing through the battery, i have run task manager when this occurs but no process is shown using alot of CPU.
I have read alot of threads on here descibing similar symptoms, some are just people who have wifi on or using CPU intensive applications, this i expect. But a few other users have described symptoms similar to mine where they are not using the phone and nothing appears to be running.
I am getting the problem with both my original HTC battery and the 3rd party spare i brought.
From reading the board the only definite cure seems to be a hard reset.
What im really after is any suggestions you people may have that can help me determin the actual cause of the problem, for example is their any software that will log CPU usuage over time or other diagnostic ideas.
thanks for your time
Click to expand...
Click to collapse
Maybe you might wanna check if you have the automatic mail checking feature on? Because I noticed that whenever I let my phone automatically look for email quite regularly (i.e. every 5 or 10 mins) it drains more battery then when you set it to check email every 2 hours for instance. Well that's what has helped in my case...hope this helps...

I have looked at my mail settings and my mail checks every 2 hours, i have had it set to 2 hours since i had the device (6 months) but this rapid battery drain has only started occuring in the last 2 weeks.
In that time i have not installed any new software, so am at a loose end as to the cause of the trouble

Hello,
I did had the same symptom : worked really good for 6 months (battery lasted for 30h +-) and in one time, battery was sucked out in 8 ! I did buy a new one (900mah) and it did the same. The only solution I find was to buy the 1350mah (htc) one and from this moment it last more than 2 days without any problem.
Also, I use G-light in place of the standard windows function and from this moment I really had a difference (from BatLog I went from 142mah to 123mah).
Hope it help (yeah I know: buying a bigger battery is not fun but for a device at this price, it's not so much...)

costp said:
Hello,
I did had the same symptom : worked really good for 6 months (battery lasted for 30h +-) and in one time, battery was sucked out in 8 ! I did buy a new one (900mah) and it did the same. The only solution I find was to buy the 1350mah (htc) one and from this moment it last more than 2 days without any problem.
Also, I use G-light in place of the standard windows function and from this moment I really had a difference (from BatLog I went from 142mah to 123mah).
Hope it help (yeah I know: buying a bigger battery is not fun but for a device at this price, it's not so much...)
Click to expand...
Click to collapse
thanks for the feedback, i will order a new battery and give it a try, at the least it will prove if the problem is hardware or software related.
today my phone still has 63% battery since i removed it from charge at 11pm last night. The fact that the problem is intermittent is making it very dificult to diagnose.

Today I noticed my wi-fi drains battery as hell, it was lie 60%+ of battery down in less than 40 minutes. In the past it was like 40% max. The PowerGuard's current meter did not show anything alarming. So the problem seems to be hardware.
Already backed up and hard resetted. The phone is under warranty and so is battery; sending it to service to get it fixed.
Or, I missed something and I can fix it?

Hey,
Yeah I'm currently experiencing the same problem.. I tired just about everything from battery fix cab, radios, to roms. I even got the orginal extended battery. The battery worked really well for like 2 weeks and then it started to drain really fast as well.. My cousin have the same phone as me HTC Diamond, and his battery is verry good.. It can last a whole day with heavy usage no problem. Where as my 1340MAH battery would only lask for 14hrs max with heavy usage, and when we switch the battery same stuff happens... His battery on my phone drains quickly and mine last long on his phone...
So I came to the conclusion that it's definitely a hardware issue.

For those without battery problem, how much usage do you get out of a battery and what kind of things do you do with the phone? I'm just trying to gauge how bad my batter is. It will last about 8-9 hours, but that's with hald of that time spent on the internet on either 3g or edge. I've only had the phone for about a week so it's hard for me to compare it to anything else.

other little things like disabling autobacklight and disabling 3G will help as well.
rgds

One of the things you might want to check is if your phone is constantly trying to switch from 2g to 3g or HSPDA. This constant searching for a "faster" signal can make the phone quite hot and drain the battery quite quickly.
I had it on my diamond when I used to live at my old place as it was right on the edge of a 2g/HSPDA and the phone was constantly trying to get a decent HSPDA signal. The battery would last maybe half a day if I was lucky. Since moving to a decent 3g area, the battery now lasts me a good 2 days on nomal usage. This is with the original battery.

jfran said:
other little things like disabling autobacklight and disabling 3G will help as well.
rgds
Click to expand...
Click to collapse
a good tip to save battery power which is something we all have to do, but i do not think its the cause of my new found rapid battery drain.
The last 6 moths i have been getting around a day to day and a half rom the the phone. now on random occasions ot will get real hot (like the gps/wifi is on or like the cpu is flat out) and the power goes in a few hours.
this is fine if its daytime and catch it but a few times its gone from 100% to 0% overnight and i have woken late for work.
Graffen said:
One of the things you might want to check is if your phone is constantly trying to switch from 2g to 3g or HSPDA. This constant searching for a "faster" signal can make the phone quite hot and drain the battery quite quickly.
I had it on my diamond when I used to live at my old place as it was right on the edge of a 2g/HSPDA and the phone was constantly trying to get a decent HSPDA signal. The battery would last maybe half a day if I was lucky. Since moving to a decent 3g area, the battery now lasts me a good 2 days on nomal usage. This is with the original battery.
Click to expand...
Click to collapse
interesting, i will leave the phone on 2G for the next few weeks and see if i experiance the rapid drain, maybe i am on the edge of a 2G 3G nexus, as i do get a fairly weak signal here (2 bars 3G and full bars 2G)
thanks for the suggestion

rumpleforeskin said:
interesting, i will leave the phone on 2G for the next few weeks and see if i experiance the rapid drain, maybe i am on the edge of a 2G 3G nexus, as i do get a fairly weak signal here (2 bars 3G and full bars 2G)
thanks for the suggestion
Click to expand...
Click to collapse
From you last sentance it does sound like it the 2g/3g switching that is cauing your problems.

i have this issue too.
my phone will drain ~5-7% every hour in standby. and when wifi is on it drains 2% every minute even staying on the home screen and me not doing anything on the phone.
from reading this thread, i can see that this is definitely not normal. looks like i'm headed for a dreaded hard reset...

Good day to all. At first sorry form my eanglish/
I have a same problem with diamond. It is overheating while charging at standby (battery temp. is about 50 C), and if it charges by USB, the battery temp is about 46 - 47 C. The phone's fly mode is switch on. HTC service couldn't answer me smth. But it says that same problem have 2 diamond from 1000, and only way to resolve problem is a change of mother board. in Russia it's about 250 euro.

And one more notice, which battery temp is 46 or 47 C, charging automaticaly switched off... Phone heating, but battery is not charging !!!

i've resolve problem...but don't know how i did it. I try to recharging stock acc. while 4 or 5 cicles, and today i have workable Diamond.
not discharge
not overheating
it's so strange, but it works

Another battery moaning thread

I have read a load of threads relating to the battery life, but this is slightly different. I'm on jm1 official and have been for weeks, its was fine until a day ago, now I'm sitting at work, watching the battery percentage go down everytime i look at it, I'm now talking about now when I'm using 3g, just when phones idle.
I went to sleep last night and unplugged phone before I did, fully charged. Woke up and it was on 94%....
Really my question is, is there any way to find out what's using all my battery apart from the built in function which seems to only refresh every hour! I'm not looking for juice defender or such apps
Sent from my GT-I9000 using XDA App

sensi_ said:
I have read a load of threads relating to the battery life, but this is slightly different. I'm on jm1 official and have been for weeks, its was fine until a day ago, now I'm sitting at work, watching the battery percentage go down everytime i look at it, I'm now talking about now when I'm using 3g, just when phones idle.
I went to sleep last night and unplugged phone before I did, fully charged. Woke up and it was on 94%....
Really my question is, is there any way to find out what's using all my battery apart from the built in function which seems to only refresh every hour! I'm not looking for juice defender or such apps
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Spare parts can give you, sometimes, some rough approximations. Really, if you started experiencing issues one day, you should try to remember what you downloaded most recently, it might be poorly coded and you should look to replace it with competing software.
Also, there are somethings you wouldn't want to intentionally or unintentionally leave running in the background. Use task manager (not ATK cuz it doesn't track "running" processes very well unless they've updated) to find out if anything is running. Even the marketplace will run in the background and not let your phone properly sleep.

Also, 6 percent seems about right. 2% for all services and 3g off, 6% for 3g? I'll have to look into it when I'm not on my phone. Especially if you dress your batteries by running them down to 0s%, this is bad to do to li-on batteries, I don't know how long it takes to feel the effects but short cycles are better for the batteries health.

Ok, 3g is never on at my house I can't get it there anyway.
The only reason I run it down to 0% is because I'm using my phone and it doesn't last, its stupid to say use it in low cycles because then I'm really only getting 20% battery life anyway...
I have advanced task manager but don't really use it from what ive read I shouldn't have to. And I had thought about the recent apps I've installed and I have installed nothing much new apart from angry birds
Just not happy with the noticeable change in the space of a few days.
Sent from my GT-I9000 using XDA App

Return the batt
Sent from my GT-I9000 using Tapatalk

c'mon, my phone drops like 10% every night. once even 30%, i've grown to live with it.
be glad you're only dropping 6% really. lol.

Adevem said:
c'mon, my phone drops like 10% every night. once even 30%, i've grown to live with it.
be glad you're only dropping 6% really. lol.
Click to expand...
Click to collapse
If consumers keep "living" with things then they deserve the crap they get. As a consumer, you have the right to be heard so make sure the people you're giving your hard earned cash to is taking your feedback and providing products and services for YOUR needs, not the company's needs.
I'm loosing 10% every night too. It's a joke and I'm hoping the updates will improve it somewhat.

tof9 said:
If consumers keep "living" with things then they deserve the crap they get. As a consumer, you have the right to be heard so make sure the people you're giving your hard earned cash to is taking your feedback and providing products and services for YOUR needs, not the company's needs.
I'm loosing 10% every night too. It's a joke and I'm hoping the updates will improve it somewhat.
Click to expand...
Click to collapse
ye i know. but funny thing is, it's rather random. with the same settings and nothing changed at all. sometimes overnight, it drops close to none. and some nights, it drops 10%.
i've lost 10% over 4 hours today with no usage (idle) so lol. i'm glad i'm at least getting 2 days worth of usage.
let's hope this famous froyo does something. sometime soon...

Make sure all applications are dead (ie. use samsung task manager).
Turn off apn (so that you can guarantee no apps are using data).
If you do those two things, I'm sure you won't lose more than 5% overnight.
Personally, if I do that, I don't lose more than 1% overnight.

maybe it's due to over-flashing and all. de-calibrates the battery or whatever. either way, meh.
i've probably only got this calender widget refreshing itself every 12 hours to update the day's events and my Google account on active sync. maybe some applications screwing up somewhere.
to point out, a fresh flash always gave me no problems with battery draining. (after "re-calibrating")

just updated my phone to the TEST firmware JPJG8 which is currently the latest one available thru kies which includes arabic, and have seen no changes from the original firmware the phone came with ( Originally bought from Abu Dhabi with whatever firmware that had the android market not being available )
toying with juice defender for 2-3 days my SGS laged like hell even with the RyanZ lag fix OCLF from the market and it said that i saved 1.5% more juice tho i didnt see any diff with batt, it still drained fast (full charge overnight + extra charge with phone off on my way from home to work and starting @ 100% once leaving my car and ending @ 30-20% in the afternoon about 4-5pm, need to charge a little more if i wanted it to last till 10pm T_T )
deleted it today and thought why not simply use the extended control widgets to disable the connection when the screen was off + switch off the auto sync, like how the program did but manually and amazingly batt life felt like a big nasty battery i felt the diff immediatly.
kept the program juice plotter to see how steep the batt was used to compare the results.
1. keeping my phone on 2g almost all the time except for when i need to browse the net/use msn on phone - i do use facebook/twit and i might be missing the fast notifications but 2g is good with those 2 and battery life sure is extended as i can see.
2. closing the apn when locking the phone and bringing it up when screen is on is a great idea and u can almost instantly tell ur battery life is better
3. keeping screen off as much as possible helped my batt too tho i dont like it but it works.
really noticed a diff in battery usage today so im currently backing up the phone and after a fresh format/restore session will apply root and OCLF and keep you all posted on how long the battery lasts using this method
will test for 2-3 days before reporting again.
Current Battery stat killers are
1.loads of calls
2.display due to a large amount of sms's
see you again after my test in a couple of days

I don't think jg8's a test though unless it's a new rev by kies. used it a month back, pretty awesome but I've switched.
heading to bed now, shall see what happens tonight! such adventure and excitement every night.
mazroui said:
just updated my phone to the TEST firmware JPJG8 which is currently the latest one available thru kies which includes arabic, and have seen no changes from the original firmware the phone came with ( Originally bought from Abu Dhabi with whatever firmware that had the android market not being available )
toying with juice defender for 2-3 days my SGS laged like hell even with the RyanZ lag fix OCLF from the market and it said that i saved 1.5% more juice tho i didnt see any diff with batt, it still drained fast (full charge overnight + extra charge with phone off on my way from home to work and starting @ 100% once leaving my car and ending @ 30-20% in the afternoon about 4-5pm, need to charge a little more if i wanted it to last till 10pm T_T )
deleted it today and thought why not simply use the extended control widgets to disable the connection when the screen was off + switch off the auto sync, like how the program did but manually and amazingly batt life felt like a big nasty battery i felt the diff immediatly.
kept the program juice plotter to see how steep the batt was used to compare the results.
1. keeping my phone on 2g almost all the time except for when i need to browse the net/use msn on phone - i do use facebook/twit and i might be missing the fast notifications but 2g is good with those 2 and battery life sure is extended as i can see.
2. closing the apn when locking the phone and bringing it up when screen is on is a great idea and u can almost instantly tell ur battery life is better
3. keeping screen off as much as possible helped my batt too tho i dont like it but it works.
really noticed a diff in battery usage today so im currently backing up the phone and after a fresh format/restore session will apply root and OCLF and keep you all posted on how long the battery lasts using this method
will test for 2-3 days before reporting again.
Current Battery stat killers are
1.loads of calls
2.display due to a large amount of sms's
see you again after my test in a couple of days
Click to expand...
Click to collapse

Adevem said:
I don't think jg8's a test though unless it's a new rev by kies. used it a month back, pretty awesome but I've switched.
heading to bed now, shall see what happens tonight! such adventure and excitement every night.
Click to expand...
Click to collapse
jg8 isn't a new rev, it was out for a while and cant be found without using the ctrl+alt+u+p (and if that = test then its not an official release) at the firmware update in kies, its a middle east version with arabic support.
ok impressions on how things went.......
voice calls = 49% with 1H 13M 23Sec
Display = 35% with 5H 0M 9Sec
Cell standby = 7% with 16H 58M 44Sec
Phone idle = 4% with 11H 58M 34Sec
Android System = 3% with 42M 30Sec on CPU Usage and just 20Sec on CPU foreground
batt did last a full day for me i guess ending @ 6% when i got home
but what use is trying to save the batt life when i hardly use the phone
lets say i browsed the net for a 30min-1hour session, watched a few youtube video's/even downloaded video's for that matter or played a game or 2 for like 30 mins to an hour
ofcourse the display will be the major batt sucker by doing this and i doubt it would last an afternoon if i did so in the morning/noon time
I guess my only solution would be an extra batt or 2 for that matter if i really wanna show-off the phone and enjoy it fully for a full day. But the problem would be charging them all without a phone stand with extra batt charger
Anyways, does the batt last a full day for me , yes it does
am i satisfied doing what i did to make the batt last , N O

I got sick of my battery running out at around 3pm at work every day so I've now bought 2 extra batteries and an external charger from spider-foot.com
Sent from my GT-I9000 using XDA App

Well, greetings to all.
I just wanted to share my experience regarding the battery issue.
As I purchased the phone some 12 days ago, my experience is short, but somewhat effective.
First couple of days the battery lasted for app. 24h, with lots of usage (wi-fi surfing, lots of applications installation, calls, games, music, etc.). Then, I installed some "battery-indicator-related app", fully charged battery and used the phone for 15 minutes or so and went to sleep. In the morning my battery was at 80% !(it was on stand-by the whole night), and till 2pm it was at 15%, without using the phone at all.
Battery usage stated 64% "cell standby". I thought - what the .... ?
Than I did the next thing.
Uninstalled that crappy app, installed another one (similar, but other manufacturer),turned off the phone, fully charged it, turned it on, checked that wi-fi and BT are off, turned off 3G and syncs and updates, set brightness to lowest, installed black wallpaper, used task killer to kill all unwanted apps, and decided to see for how long will battery last with that settings and very little usage (couple of calls, sms and some sudoku playing).
The result:
4 days, 18 hours - since unplugged. Battery at 39%.

@ some of your replies
overflashing - ive only flashed once.
be lucky it only drops 6% when totally idle - the whole point in writing this thread was because ive previous lost 0%! when idle for hours and hours...
I have background data off (which i dont want to have to do) i have an APN switch which i use sometimes, but tbh its tedious and i shouldnt have to do this.
as far as im concerned, when i idle the phone, it shouldnt do ANYTHING

[Q] xperia z battery issues

Hi all
I'm new to android and am having some major issues with my Sony New xperia z.
First off stamina mode is simply not working. It did to start but it's now not changing the expected battery life when toggled on and off. That's just the start though.
Battery life had been absolutely terrible. I have been deliberately stopping myself from using the handset just so I can make it through the day.
I have come from an iPhone 4 and am quite a heavy user normally, my battery always lasted well beyond one day. New I know the screen and processor on this are awesome but I'm literally not going to be able to use any apps or anything if this is the true battery life.:crying:
I noticed that android os was taking the majority of my battery for just if today, screen has since taken over since I got in because I've been searching the net for potential answers.
Android services is up there as well. I installed a battery checker to see if my phone is but going into deep sleep for some reason and found that there had been something like 3000 wakelocks since last charge (unplugged this morning). I'm now down to 3% after about 13.5 hours since unplugged.
Screenshot was from before I started writing this post.
Any help please. If this isn't some sort of bug/fixable errorI might have to see about returning this phone!
Is this amount of wake locks normal? How can I tell what's stopping my phone from sleeping? I'm new to android other than my nexus 7 which had always been amazing in terms of battery.
Thanks all
John

Go into your Google account and disable everything from syncing expert the essentials, logout of talk etc , that should help.
Sent from my GT-N8010 using Tapatalk HD

Use 2g only if u dont use 3g.
It seams that ur phone remain awake all the time.
C that blue line under the graph.
Do you got this problem after installed certain app?
Sent from my C6602 using xda app-developers app

Battery life is not great, but it's good for me. However, my Xperia Z is rooted and all the non-essential apps and services disabled (pretty much everything of Sony's).
Can last for a whole day from morning 8am to night 12pm, and still left about 20%. Heavy user, 5 hours screen-on time, surfing, calls, text/whatsapp, and a couple of videos for about 30min.

scoopdreams said:
Battery life is not great, but it's good for me. However, my Xperia Z is rooted and all the non-essential apps and services disabled (pretty much everything of Sony's).
Can last for a whole day from morning 8am to night 12pm, and still left about 20%. Heavy user, 5 hours screen-on time, surfing, calls, text/whatsapp, and a couple of videos for about 30min.
Click to expand...
Click to collapse
think you mean 12am lol..

spazzy1912 said:
think you mean 12am lol..
Click to expand...
Click to collapse
lol yah it's not much to crow about if it lasts till only 12pm noon.

Hi guys
So I've charged it overnight, and this morning I've purposefully turned Stamina mode off (though the number doesn't change from 20 hours either way, Stamina mode is definitely broken on my handset!)
I've also turned off a load of location service options from within maps, as per a solution I found on a google forum (but it won't let me post the link as I'm still a noob!)
It sounds like lots of people have had similar issues with Android 4.1.2. Dare I hope that Sony release the 4.2.2 update as quickly as rumoured and that this will fix these issues!?
I'll report back in later on the battery use. So far only used 7% since being unplugged at 8:30am, and i have made a few long calls this morning (I use the phone for work as well as play )
I really haven't been using Apps all that much at all. I haven't even tried Google Talk yet. I am a games man really, so hopefully I can get the battery life sorted so I can make use of this phone to its full capability.
I don't want to disable 3G as I see this as standard operating functionality, and I usually use my phone to browse the web, check emails, check facebook, use whatsapp, stream youtube vids, everything you would expect a connected smartphone to do. I suppose what I'm saying is I don't want to disable anything that takes away from how I would actually use the handset, otherwise even if the battery lasts, its not doing what I need it to. It would be like a paperweight with a long lasting battery... pointless.
Thanks for all the suggestions guys, I really appreciate all the support. Fingers crossed I get a better day out of it today! Watch this space.
:fingers-crossed:

Much better today. I've had to use it for quite a few calls, watched a couple of vids and listened to a couple of tracks plus played about 4-5 levels on angry birds space. I'm at 56%remaining after 9 hours on battery. This is with stamina mode off. 1 hour 37 mins of screen time.
To be fair it's still not as good as I had hoped, but this at least means it'll likely last till bedtime with some battery remaining. I get the feeling that tomorrow it migot be even better. Also I think once the 4.2.2 update is released it will probably improve. I also get the feeling it may have improved after I opened YouTube and Google talk for the first time - almost as if android was holding its breath until I opened them. Could it have been holding out for me to open them so they could complete initial setups or something?
All this being said, after being on here for only about 5-10 minutes to write this post I'm now down to 51% all of a sudden!

Wrong thread.

Hi there, So did you manage to fix the stamina mode? I'm having the same problem. Turning stamina mode on or off doesn't change the idle time left. Though this is my second day using and only second charge.

jkwanness said:
Hi there, So did you manage to fix the stamina mode? I'm having the same problem. Turning stamina mode on or off doesn't change the idle time left. Though this is my second day using and only second charge.
Click to expand...
Click to collapse
I believe stamina mode kicks in when You switch the screen on.
On the couple of first day, when You play with Your new phone all day long with full brightness, it could run out pretty quick (less than 9 hours I had).
I got my Xperia Z on release day in UK and to be honest, I've been checking 'battery issues' threads for all day long
Two days ago, I did a proper test eg 'everyday use'. Phone battery lasted nearly two full days :good:
Basicaly I upluged Z from charger 6 in the morning and I died on me NEXT day when i sat on sofa around 8 pm watching Youtube with headphones on. So I got over 2 hours constant screen on with music before it died.
Through the rest of the time i managed to get over 2 hours of screen time, answering over 12 calls, sending loads of messages and checking facebook, xda, twitter and instagram countless times :highfive:
1 day 13 hours 24 minutes
And here is the screen time.
My stamina is set to allow gmail only, which obviously tells me if I sold anything on ebay, got interaction on any of my websites.
My screen brightness was set to automatic with slider full to the right.
Vibration when touching screen are off since day one (don't really like it )
I was worried about battery too. From thinking it is not good, I've changed my opinion to its WAY better than S and Ip5 (which i own still until i sell them on ebay). Hope this clears things up for anyone. Ohh, phone was ran to flat out once on release day, then full charge and flat 2 times before this.
Now I have to say, I absolutely LOVE THIS PHONE now!
:victory:

Is it time to try a custom rom?
jkwanness said:
Hi there, So did you manage to fix the stamina mode? I'm having the same problem. Turning stamina mode on or off doesn't change the idle time left. Though this is my second day using and only second charge.
Click to expand...
Click to collapse
Hi there - nope. Stamina mode is bust for me. I'm not bothered enough to factory reset again though. I'm still experiencing intermittent battery issues, like today for example I took it out the wall at 6:35, I'm already down to 66%. To be fair, I've watched a couple of 2-3 mins videos on Youtube, used a bit of tethering (about 5 minutes) and sent a few texts, but this is way higher than I would expect. By contrast, yesterday the battery seemed to last pretty well, but then I was working from home, so there was very little in the way of searching for signal etc.
I've contacted Sony about this, and their official line is to download PC Companion software and do a "software repair" (through their usual updating route) I'm going to probably give this a go over the weekend, but it has warned me that I might lose my data... so it might be the equivalent of a factory reset anyway.
I'm a bit sick about worrying about battery life now - getting a new handset should be exciting and I should just be enjoying the features of this superphone. Instead I'm deliberately not using it to make sure I don't run out of juice. Starting to wonder what the point in having it is.
As a newbie, I don't know much about rooting and using non-stock software - does anyone know if:
Its easy to do (I am fairly computer literate at least)?
There are custom roms I could use for the Xperia Z?
It would likely help the battery life?
Thanks again all

shakalek said:
I believe stamina mode kicks in when You switch the screen on.
On the couple of first day, when You play with Your new phone all day long with full brightness, it could run out pretty quick (less than 9 hours I had).
I got my Xperia Z on release day in UK and to be honest, I've been checking 'battery issues' threads for all day long
Two days ago, I did a proper test eg 'everyday use'. Phone battery lasted nearly two full days :good:
Basicaly I upluged Z from charger 6 in the morning and I died on me NEXT day when i sat on sofa around 8 pm watching Youtube with headphones on. So I got over 2 hours constant screen on with music before it died.
Through the rest of the time i managed to get over 2 hours of screen time, answering over 12 calls, sending loads of messages and checking facebook, xda, twitter and instagram countless times :highfive:
1 day 13 hours 24 minutes
And here is the screen time.
My stamina is set to allow gmail only, which obviously tells me if I sold anything on ebay, got interaction on any of my websites.
My screen brightness was set to automatic with slider full to the right.
Vibration when touching screen are off since day one (don't really like it )
I was worried about battery too. From thinking it is not good, I've changed my opinion to its WAY better than S and Ip5 (which i own still until i sell them on ebay). Hope this clears things up for anyone. Ohh, phone was ran to flat out once on release day, then full charge and flat 2 times before this.
Now I have to say, I absolutely LOVE THIS PHONE now!
:victory:
Click to expand...
Click to collapse
Well, that's me jealous as hell then! I'm going to do the software repair, as obviously I do have some issues with the battery (rather than me just being paranoid, and it being normal to get the battery usage I've been receiving)

Agreed. I just one good battery life not great. Enough to last a day with moderate-heavy usage. I don't mind charging at night. But charging every half a day is ridiculous..
Anyways I too have my stamina broken. Now i'm doing the software repair. hopefully it'll be okay. I really hope that after a few weeks the XZ can last long..

jkwanness said:
Agreed. I just one good battery life not great. Enough to last a day with moderate-heavy usage. I don't mind charging at night. But charging every half a day is ridiculous..
Anyways I too have my stamina broken. Now i'm doing the software repair. hopefully it'll be okay. I really hope that after a few weeks the XZ can last long..
Click to expand...
Click to collapse
I'm hoping that when they release the Android 4.2.2 update it'll help too. I've read lots of forums about people getting poor battery life when upgrading to 4.1.2 (which the Z comes with as standard) but these being fixed when upgrading to 4.2.2. So hopefully they'll release it as quickly as the rumours suggest and this can help.
I've certainly got no battery problems whatsoever on my Nexus 7 on 4.2.2, but then its a totally different device.

john_pawson said:
I'm hoping that when they release the Android 4.2.2 update it'll help too. I've read lots of forums about people getting poor battery life when upgrading to 4.1.2 (which the Z comes with as standard) but these being fixed when upgrading to 4.2.2. So hopefully they'll release it as quickly as the rumours suggest and this can help.
I've certainly got no battery problems whatsoever on my Nexus 7 on 4.2.2, but then its a totally different device.
Click to expand...
Click to collapse
to be honest, 4.2 and 4.2.1 on my nexus 7 just killed the battery.
it was no where near as good as 4.1.2 or 4.1.1...
hoping that 4.2.2 is optimised a bit better

Trust me even if the Stamina Mode doesn't look llike it is working there is still a big difference having it off and On, yes the phone is being woken up but still not as much as with it off.
Sent from my C6603 using xda premium

jkwanness said:
Agreed. I just one good battery life not great. Enough to last a day with moderate-heavy usage. I don't mind charging at night. But charging every half a day is ridiculous..
Anyways I too have my stamina broken. Now i'm doing the software repair. hopefully it'll be okay. I really hope that after a few weeks the XZ can last long..
Click to expand...
Click to collapse
Let me know how it goes and also if it deletes data from the handset - I'm looking to do it this weekend; can't afford to not be able to use my phone for any length of time during the week as its my work phone too.

john_pawson said:
I'm hoping that when they release the Android 4.2.2 update it'll help too. I've read lots of forums about people getting poor battery life when upgrading to 4.1.2 (which the Z comes with as standard) but these being fixed when upgrading to 4.2.2. So hopefully they'll release it as quickly as the rumours suggest and this can help.
I've certainly got no battery problems whatsoever on my Nexus 7 on 4.2.2, but then its a totally different device.
Click to expand...
Click to collapse
i was having the same problem stamina mode worked fine but than for no reason it stopped and i could see the % drop before my eyes, but then i did a factory reset to the handset and it was fine after that works perfectly, def not a solution as there is no need for such a talked about feature to be so unreliable having said that after i did my factory reset i had it on 100% for 5 hours on standby with 15 min of screen time , just goes to show how awsome something is if it worked as advertised

decentgi said:
i was having the same problem stamina mode worked fine but than for no reason it stopped and i could see the % drop before my eyes, but then i did a factory reset to the handset and it was fine after that works perfectly, def not a solution as there is no need for such a talked about feature to be so unreliable having said that after i did my factory reset i had it on 100% for 5 hours on standby with 15 min of screen time , just goes to show how awsome something is if it worked as advertised
Click to expand...
Click to collapse
Yeah, the factory reset worked for me too... for a day or so. Then boom, went to check it and it was doing the old 20 hours, no difference thing. Real pain the posterior.
In a funny sort of way, I'm glad that others aren't experiencing the same battery issues as me, as it confirms that its something that's not quite working right with my handset, rather than it being as its supposed to be, and hopefully a firmware release or simply doing Sony's suggested software repair will fix it.
On the other hand, it does make me feel that "Why is it always me?" feeling!