Develop Bugs

Desire battery life

Any pointers for increasing battery life? I've disabled live wallpapers, picked a dark background, set friendfeed etc to update every 4 hours, and it's still not great. Phone is new, should I expect battery life to improve as battery gets used a bit?
Are task killers worth using? Seems to be some debate that they might actually cause more problems than they solve.
I've gone through forum and found lots of generic advice but would appreciate any ideas people have tried on the Desire.
Do I *really* need to wturn off wifi when I'm not using it? Isn't the phone smart enough to not use it when a known-network isn't present?
Cheers

From my experience i would advise against having a task killer running.
I used to have one running on my N1 and thought, "Great, i can free up memory". But you really don't need to do that with Android.
Having disabled it from running, I get to teh end of the day and I have between 75 and 85 battery, after having done a fair few phone calls, some net fun and data access.
I still have a task killer but I use it infrequently and dont have it running - i let it "kill" itself after running it.
I found they take up a good deal of battery life. But that's just my opinion.

isaw said:
From my experience i would advise against having a task killer running.
Click to expand...
Click to collapse
Of course!
The classic task killers kill services that are sleeping and do no eat battery.
A few minuts later, on some receivers ( connexion to internet, message or SMS received) these services will restart, and that's where they are eating battery.
If you hadn't killed them, they would have done that without eating battery.
Waking up and then going to sleep is really less battery-eater than restarting the whole service.
So, please forget about all these task killers or do that in a smart way. Only kill your game or the latest app you used!

Battery life will improve over the first weeks use. Needs a few charge cycles to achieve full capacity.
Although the battery life might not be as good as some other "imore ipopular" handsets at least you can buy a second reasonably cheap battery if you know you will be a couple of days away from a possible charge (camping etc).

zzleezz said:
Battery life will improve over the first weeks use. Needs a few charge cycles to achieve full capacity.
Although the battery life might not be as good as some other "imore ipopular" handsets at least you can buy a second reasonably cheap battery if you know you will be a couple of days away from a possible charge (camping etc).
Click to expand...
Click to collapse
You serious? I am guessing you're referring to the iPhone, the smartphone that is on charge more times than its off charge?
My Desire hands down beats an iPhone for battery life by almost 100% - only ever got 1 day of an iPhone at best - Desire is approaching nearly 2 days full usage, I am no lite user either.
For battery life the Desire is one, if not the best out there at the moment.

thank christ for that, i presume it improves after a couple of charges. mine was new on friday and the battery's pretty uninspiring so far...

landwomble said:
thank christ for that, i presume it improves after a couple of charges. mine was new on friday and the battery's pretty uninspiring so far...
Click to expand...
Click to collapse
My Desire has been up for 21.5 hours and has 3 bars left (according to the settings battery meter) but I've been driving around most of the day with spotify on listening to music, quite a bit of surfing, emailing, calls and a few texts.
I reckon it's probably got another 5+ hours to go yet.
My phone is quite new and battery life is starting to improve daily now.

Hmm... struggle to get more than 5 or 6 hours out if mine under relatively light usage, maybe 20 mins calls and 3 or 4 texts, if I use browser it flatten quicker still, the battery use status usually says Android OS itself has used most battery.
Hoping it will improve, at moment it is poor compared to my TD2 with a smaller battery
P.

had mine about 6 days and my battery is ver poor at the moment. however i remember thinking that about the G1 at first and it got better.
still was luck to get a full day from it. however i went to europe the other week (from uk) so turned all roaming data and syncing off and it lasted 4 days.
fingures crossed battery life increases on the desire, gor a car charger on orded fron fleabay so i should survive
i loved my G1, and found it hard to upgrade, first time thats ever happend, but wow this desire is differnt class, my wife has the iphone and is green and my 16 year old son is gutted he got the hero only 6 months ago.

Re: desire battery life
I've been running my desire for nearly two weeks now.
As usual WiFi & gps are the main culprits.
On average, I have exchange & GMAIL push on 3G all day with a bit of Facebook, sms & several min long calls without going past the three quarter mark by 5:30pm . However as soon as I switch on WiFi at home for browsing, reading news feeds, market etc, bang goes my battery!
Turn off 3G and sync and use it as a phone.......great battery life!
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk

Yea not sure how you guys get good battery out of it. I have everything off, dark background, no synching due to having mobile network off (only thing setup to sync is email every 2 hours). I take a few phone calls maybe 30-40mins, do about 15 mins of surfing, 30 mins of music through headphones at low volume, and a game for 30 mins. That pretty much concludes my battery life for the day (is usually at around 20% left by the time I get home).
I find if I browse the market and download/install apps, my battery will go down very quickly.

Got my desire for a week now and it lasts me 2 days woth some movies, wifi and messaging. if i go even lighter, only messaging and calls it lasted me almost 4 days. it has great battery in my opinion, better than my old hd2 and even better then my old old diamond

Over in General we found an issue with the calendar app keeping the phone from going into sleep mode - That could be a cause for poor battery life.
The thread is here (remove spaces please):
h ttp:// f orum. xda-developers.com/showthread.php?t=666404

My Desire have no problem on battery so far tho, 1½ day with normal use is no problem. litle use i can use it around 2 days, but with alot off things running i would say for sure it works over a full working day.

Mine has been running for 20 hours now, I have mainly been calling, texting, surfing the net (mainly facebook), and playing a game a couple of times.
I'm not really sure whether this is good or not, I would rather it lasted longer than this, as it is due for a charge within the next few hours, and this is a bit of an awkward time to need to charge it. If I wasn't off work today I'd have a dead phone before I got home.
I don't like to charge mine before it tells me too, I like to think it'll improve the battery life over time? Is this right?

those batteries are not affected by memory effect. charging everytime you can is better than drain battery to 0%

HTC have said there is a software issue with battery levels hench the charging issues. Fix in the future they suggested.
Weather this effects the actual life of battery not sure.

I have just come from the HD2
At the beginning, everyone agreed that the battery life was god awful, and a month or so in everyone reported that the battery life was outstanding!
I can confirm this, to start with it wouldnt last me a day, by the end of it i could leave 3g and wifi on all day with everything running in the background and get a good 2 full days out of it!
I just received the desire yesterday, i gave it a full overnight charge and i must report that for the first charge the battery life looks very promising
I have used the phone VERY heavily even for me with about 100 texts, an hour talking, an hour on the internet and syncing every 15 mins or so and i have 2 bars of battery left, and i said, the battery is only going to get better!
You should look at power management tips for the HD2 as most of them apply, for example disabling 'automatic backlght' and setting it yourself because that alone can add about 30% to your battery life.

currently at 2 days 15 hours with 6/10 battery bars left.
i have gps/wifi/internet disabled and turn them on with the settings widgets when i want to use them. screen brightness at about 20%
the battery is great IMO

Guys could u please tell if I should when receiving my phone charge it directly (full charge) or it's better to empty it completely and then charge it ?
Thanx

[Q] Battery Question..looses 18% in 46mins?!

Hey all,
I am a new owner of a HTC Desire, have used this amazing device for about 2 weeks now. All is well, except for.... the battery life.
Here is my scenario, tell me if this is the "norm":
Unplugged from wall charger at 8:30am, by 9:16am (total unplugged time of 46mins), I had used 18% of the battery.
I had a 7min voice call, afterward a 2min video recording. While on the voice call, I had it paired to my bluetooth headset (Plantronics).
Power left in the battery: 82% (4021mV, 30.0 degrees celcius)
All the standard items loaded as part of the Android OS. I have no data plan yet, so 3G was off, WIFI was off, GPS was off as well. Lastly, brightness was set at 40%.
Is this normal? to loose 18% of my battery within that timeframe and also with the type of usage I went through?
Thanks or any response..!

It could be because your screen was on? If your battery is still bad after 2 weeks try to get a replacement.

I have learned to just accept losing 1% in 1min under heavy use.
I reckon I could empty the battery in an hour and a half with the right conditions. It just sucks, start carrying your usb cable round with you and keep an eye out for USB ports you can nick some juice from. If your lucky you'll get through the day with charge left and not lose your data cable (I'm on my fourth).
Some people claim to get several days use out of their desire. They must have a pact with the devil or something because the best I have ever seen is a day and a half.

This is the common issue for new Desire users, so don't worry its normal what you are facing..!!
-Trust me when i bought my desire i freaked out after heavy use the battery wouldn't even lost for 6-7 hrs..!!
-I had never got one full day out of my desire..!!
-So i did some serious research on this issue and came out with some Awesome solution..!!
-i have written the solution in my blog here:
http://harishanswers.blogspot.com/2010/09/disappointed-about-battery-life-of-your.html
-After reading that post ,follow the instruction that i have given at the last.

i hope you got the solution for your problem

- OpenDesire by AdamG
- SetCPU: (Max 1036800, Min: 245000) Interactive scaling.
Not using the phone, while in standby it lasts basically forever. The longest I've gone without recharging is two days, light/none use.
When I finally recharged it the phone claimed to have about 60-70 % of juice left. Making a phone call would probably leave the battery with 40 %, LOL
Normal use gets me through the day with about 30 % battery at the end of the day. Ca 12-16 normal use.
Hard usage, my phone holds up about 6-7 hours time. When I say hard use, it's constant use.

Thanks for the replies everyone.
My situation hasn't really improved, even with a "app Killer" added to the equation.
like mercianary mentioned, I have been carrying my adaptor and USB cable where ever I go! Not the best method.
I am thinking of buying one of these to carry around..
http://www.lifetrons.ch/EN/Products/Products-LT035E1.htm

maxima0002 said:
Thanks for the replies everyone.
My situation hasn't really improved, even with a "app Killer" added to the equation.
like mercianary mentioned, I have been carrying my adaptor and USB cable where ever I go! Not the best method.
I am thinking of buying one of these to carry around..
http://www.lifetrons.ch/EN/Products/Products-LT035E1.htm
Click to expand...
Click to collapse
Try using JuiceDefender. Should boost your battery.

Those tasks are close to the heaviest usage possible so nothing unexpected for a completely stock device. Battery drain is always subject to usage.
Albeit 18% sounds a tad high to me.
Did you verify you were starting at 100% and it didn't drop to 90% within seconds even with no such use (like experienced by many)?
-----------------------------------
- HTC Desire via XDA App -

[Q] Desire HD battery life question before I buy

Hi,
I'm planning on buying a Desire HD, but just curious about battery life before I lay down a grand on it.
At the moment I have an HTC Hero, when they were in their heyday many people complained about the short life on them. I can get 2 days out of mine, with syncing over wifi enabled the whole time. I put the complaints down to people with background apps sucking CPU or too much twitter/facebook/whatever crap syncing as well.
Now most of the reports of poor Desire HD battery I life are from people on their first charge (who clearly don't understand the characteristics of Li-ion batteries), people who expect to be able to thrash the phone all day with the screen on without it dying and generally people who just don't sound like they know what they're talking about.
I know there are two bugs which peg the CPU at 100%, the one fixed by having debugging on and the calendar bug, which sounds like it can be fixed by clearing calendar data or leaving syncing off. I think these were affecting some of the people who were complaining about the short battery life.
So my question for Desire HD owners is, can you last at least 6 am till 10 pm with a bit of use (something like 10 min browsing, 20 min IM, email syncing all day, 1 hr music, 20 min calls) without it dying? Currently my Hero does this fine and a full day without a charge is a requirement for me.
Thanks.

Yes, if you set it up correctly. From your post it sounds like you know what your doing when setting it up.

Before i tried the battery calibration i was getting from 8am to 9pm with moderate usage. TBH i was put off by using it as I thought it would just die on me too soon.
After the calibration (search forum for it) i got from 8am to 4pm the following day where the 15% warning hit. So do the calibration and you'll be as happy as i now am with it. I never got my iPhone 4 to last that long!

Thanks for the info guys, exactly what I wanted to hear!

I haven't taken any precautions to save battery life and I am getting 25-26 hours on a full charge...and now having had the phone for 2-3 weeks it seems to be getting even better!! I've been getting 36 hours out of a full charge these past 3 days.
I do not turn wifi off. I have screen brightness on auto. Syncing lots of stuff hourly (even weather!). I use 3g when I go out but this is about 2-3 hours tops on week days cause I have wifi everywhere i go. battery life has never been an issue for me and I use my phone frequently...play games for 20-30 mins. watch videos via. skynews, listen to some music etc. etc.
As for the bugs...I do not have usb debugging turned on and I have never had the /INIT problem...perhaps it was fixed in the last update? and the calender bug...never had that problem either and I use my calander with google calander, facebook, holidays and person agenda.

I think you'll easily last a day with the usage you mention. As a rule, I think you normally get up to 4 hours display on usage off a charge (browsing, messaging, watching vids etc).
I'm travelling from Ireland to NZ on Monday, which will equate to 36 hours travelling with probably no access to a charge, and lots of time spent sitting around using my dhd. There's no way the phone will last right through, so have bought a 5000mAh USB battery pack for £20.
Sent from my Desire HD using XDA App

Might be useful to you -
http://hemorrdroids.net/battery-calibration/
http://hemorrdroids.net/htc-desire-hd-battery-life/
I'm currently at 22 hours and still at 42%.

I get 2 to 4 hours depending on useage from full charge. 8 - 9 hours if left on standby and not used for anything.
Sent from my Desire HD using XDA App

AndyCr15 said:
I'm currently at 22 hours and still at 42%.
Click to expand...
Click to collapse
I'd be interested to know what kind of usage that's with?

xspyda said:
I'd be interested to know what kind of usage that's with?
Click to expand...
Click to collapse
Well...I think I have had similar results....
flash one of the custom roms, with one of the OCUV kernels and setting max. speed to one of the UV speeds (mine is set to 1.1 Ghz which is UV 50mV), also setup useful profiles in Setcpu (I have set screen-off to use max 384 mhz - which does cause a 1-3 sec lag when screen is on again) and <20% battery etc...
of course, if you play heavily with your dhd you will not get these results, so you can put wifi on with this , but need to think of what you want to do, because using your DHD for 2 days, does require limited screen usage (imho, this uses a lot of battery)

l0w said:
I get 2 to 4 hours depending on useage from full charge. 8 - 9 hours if left on standby and not used for anything.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
8-9 hours on standby???????????
even 2-4 hours whilst using it is terrible!!! When I got my HD and unpacked it I didn't put it down after a full charge and I got 8 and a half hours with non-stop heavy use.
I think you have a faulty battery!!

jbrizz said:
Hi,
At the moment I have an HTC Hero, when they were in their heyday many people complained about the short life on them. I can get 2 days out of mine, with syncing over wifi enabled the whole time. I put the complaints down to people with background apps sucking CPU or too much twitter/facebook/whatever crap syncing as well.
.
.
.
Click to expand...
Click to collapse
I too moved from a Hero to a DHD and I can say that with similar usage, the DHD loses to the Hero by a decent margin..maybe u might get a couple of hours less of usage compared to the Hero but the difference isn't very drastic
Moreover on the Hero I'm using CM6.1 Froyo overclocked and the DHD is on Sense, so logically speaking the Hero should get slightly better battery life on CM6.1 compared to Sense. I'm sure after rooting and flashing CM6.1 and undervolting/underclock the DHD, i'd get better battery life because the DHD is like much much faster than the Hero, so I'm sure even if i underclock it, it'll still be super fast.

ccart said:
8-9 hours on standby???????????
even 2-4 hours whilst using it is terrible!!! When I got my HD and unpacked it I didn't put it down after a full charge and I got 8 and a half hours with non-stop heavy use.
I think you have a faulty battery!!
Click to expand...
Click to collapse
The battery is 'fine' i'm using current widget to track and its performing to around 1100 mah which is not too far below spec. The problem is the current draw. In use i'm drawing 500 to 800 mA and in standby around 80 to 300 mA. These figures are consistent with the battery life I'm seeing and the battery working close to spec (1230mAh i think?)
There are lots of bundled apps like Maps running all the time in standby drawing current and I haven't yet figured out how to stop them. Stopping them with task manager just sees them restart with even bigger current draw.
Sent from my Desire HD using XDA App

Something is definitely wrong (as I'm sure you're aware) with only 9 hours on standby.
Out of interest, remove ALL widgets and see what difference it makes. Also, give us an example of what processes are running?
I would get rid of all task killers and also anything monitoring your system. Those themselves can draw more than you think.

l0w said:
The battery is 'fine' i'm using current widget to track and its performing to around 1100 mah which is not too far below spec. The problem is the current draw. In use i'm drawing 500 to 800 mA and in standby around 80 to 300 mA. These figures are consistent with the battery life I'm seeing and the battery working close to spec (1230mAh i think?)
There are lots of bundled apps like Maps running all the time in standby drawing current and I haven't yet figured out how to stop them. Stopping them with task manager just sees them restart with even bigger current draw.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
wow well I'm no battery expert but it really sounds like something is not right there. I don't have any battery drain from apps in standby and I do use maps.
I got 1 day and 16 hours from a full charge today (just put it back on charge now).
Thats with wifi on for 31 hours (always on, doesnt sleep when the screen locks), 1 hour and 24 mins of talk time and the screen on for 4 hours and 5 mins.

l0w said:
The battery is 'fine' i'm using current widget to track and its performing to around 1100 mah which is not too far below spec. The problem is the current draw. In use i'm drawing 500 to 800 mA and in standby around 80 to 300 mA. These figures are consistent with the battery life I'm seeing and the battery working close to spec (1230mAh i think?)
There are lots of bundled apps like Maps running all the time in standby drawing current and I haven't yet figured out how to stop them. Stopping them with task manager just sees them restart with even bigger current draw.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
thats definitely wrong somehow.. should never drain that much, perhaps it is because you let currentwidget drain it all the time
(na dont know why it is like that but it definitely is way too high)

official firmware, medium screen brightness, default sync widgets
heavy use: 12-15 hours
light use: 24 to 36 hours
this is how its been for me ever since the battery calibrated, needs around a week or use the battery calibration trick

I too have just moved from a Hero (running VillainRom 12) to the DHD (stock Sense over FroYo) and even though I have only had it a week, the battery easily lasts a whole day with the moderate use you describe. Unless I get stuck into a session of " Angry Birds ", which seems to kill the battery pretty fast. But ABs had the same affect on my Hero. Constant screen time on that beautiful 4.3" display sucks the battery. I find the same thing when using the DHD as an in-car gps. The warmth of the back of the case is testament to how much energy has been expended. So I connect to the car charger now. I have also bought a portable backup battery (plugs into the microUSB) just in case.
I don't regret spending NZD1000 on the DHD. My son is looking forward to inheriting the Hero.

Well I charged it up overnight when I got it, my first full day was today and I got 7 am till 8:30 pm using it almost constantly (quiet day at work). I don't know how people can run them flat a day with normal use. And I know it'll improve a lot after a few charge cycles.
It doesn't look like it's going to be much worse than my Hero.

Thanks for all the advice. I uninstalled all widgets and it improved a little. But still things like maps/maps sync were constantly burning juice and no way of stopping them running.
I installed Launcher Pro and can report that my battery life has approximately doubled. Typically i was getting 4 - 6 hrs use and sometimes only 2 (light use). Now getting between 8 and 12 hours of fairly heavy use. Its still not up to some of the figures others are reporting but Launcher Pro has helped a lot as all those constantly running apps that were draining my battery just dont start themselves up any more!
Sent from my Desire HD using XDA App

[Q] HTC Desire vs. Desire HD Battery Life.

A very simple quick question : Is the battery life of the Desire HD better or worse than the original Desire? (because right now the only thing that is between getting the DHD or the Desire is the battery life issue) I am much satisfied how the old Desire performs in batterywise (by reading the forums and reviews) but all the bad comments of the DHD dreads me to make the deal.
Have anyone used (or better owned) both devices and know any differences of these 2 devices with same level of usage? Can actually the improvement of the CPU compensate the drain due to the screen?
Some facts I expect from the device:
1. Dont need hourly updating with twitter fb etc or regular sense Sync. (once or twice a day is more than enough)
2. Looking forward to have a fairly moderate use of the screen for browsing ebooks etc.
3. Not heavy on making long calls.
4. Dont want to use spare batteries and nowhere to charge during the day after leaving home. So it MUST last 24hrs.
PLEASE share your experience, or I m afraid I might endup with the wrong phone for the next 2 years! Thank you all for your valuable comments....

XartzMAX said:
A very simple quick question : Is the battery life of the Desire HD better or worse than the original Desire? (because right now the only thing that is between getting the DHD or the Desire is the battery life issue) I am much satisfied how the old Desire performs in batterywise (by reading the forums and reviews) but all the bad comments of the DHD dreads me to make the deal.
Have anyone used (or better owned) both devices and know any differences of these 2 devices with same level of usage? Can actually the improvement of the CPU compensate the drain due to the screen?
Some facts I expect from the device:
1. Dont need hourly updating with twitter fb etc or regular sense Sync. (once or twice a day is more than enough)
2. Looking forward to have a fairly moderate use of the screen for browsing ebooks etc.
3. Not heavy on making long calls.
4. Dont want to use spare batteries and nowhere to charge during the day after leaving home. So it MUST last 24hrs.
PLEASE share your experience, or I m afraid I might endup with the wrong phone for the next 2 years! Thank you all for your valuable comments....
Click to expand...
Click to collapse
Roughly the same battery life for me.
Cheers from my DHD.

junta_mpb said:
Roughly the same battery life for me.
Cheers from my DHD.
Click to expand...
Click to collapse
@junta_mpb Thanks for the instant reply. So I ll take that DHD can last the day by my usage pattern right?
Ok now Much more convinced to make the deal with DHD .
So I presume the battery killer about the DHD is the screen. And for a day that I might need more juice till late, I spare the screen usage and be ok right? I also saw that the 2G can go upto 9+hrs! So it seems calling may not have a big impact.
Just curious how much do you think it will last, if I got a DHD, with my usage pattern, with additional 30mins gaming a day? Thanks a lot for the replies.

XartzMAX said:
@junta_mpb Thanks for the instant reply. So I ll take that DHD can last the day by my usage pattern right?
Ok now Much more convinced to make the deal with DHD .
So I presume the battery killer about the DHD is the screen. And for a day that I might need more juice till late, I spare the screen usage and be ok right? I also saw that the 2G can go upto 9+hrs! So it seems calling may not have a big impact.
Just curious how much do you think it will last, if I got a DHD, with my usage pattern, with additional 30mins gaming a day? Thanks a lot for the replies.
Click to expand...
Click to collapse
Text and calls don't seem to affect usage a lot. Based on what you wrote, I would say reading your books will eat the most out of your battery. I'm going out on a limb here and will say you should easily get more than 14 hours with heavy usage/e book reading. By heavy I mean more than 3 hours screen time.
3g is the biggest drain of the battery, in my experience and even with it on, I still get more than 14 hours with lots of surfing with around 3 hours screen time.
Standby drain with hourly sync takes 1% per hour.
Cheers from my DHD.

My battery is better than normal desire. I can actually playing most of the day with it and still have some juice left till I plug it in....
Sent from my HTC Desire HD using XDA App

@junta_mpb an @MattSkeet Many thanks again. Getting a solid picture now
Just another quick question, do you keep the syncing, email and social network updates, to frequent checking (for ex 1 hr basis) and use GPS daily?
And how much "screen time" roughly do you get until the battery level gets critical?

junta_mpb said:
Text and calls don't seem to affect usage a lot. Based on what you wrote, I would say reading your books will eat the most out of your battery. I'm going out on a limb here and will say you should easily get more than 14 hours with heavy usage/e book reading. By heavy I mean more than 3 hours screen time.
3g is the biggest drain of the battery, in my experience and even with it on, I still get more than 14 hours with lots of surfing with around 3 hours screen time.
Standby drain with hourly sync takes 1% per hour.
Cheers from my DHD.
Click to expand...
Click to collapse
I forgot to mention, all the time quotes are when the phone reaches 30%. You can actually get more out of it if you push it further.
Cheers from my DHD.

XartzMAX said:
@junta_mpb an @MattSkeet Many thanks again. Getting a solid picture now
Just another quick question, do you keep the syncing, email and social network updates, to frequent checking (for ex 1 hr basis) and use GPS daily?
And how much "screen time" roughly do you get until the battery level gets critical?
Click to expand...
Click to collapse
Mine is set to hourly sync. Screen time is typically around 3+ hours.
Again, this usage gets me to 30%. I usually change then.
Cheers from my DHD.

I am fortunate enough to have both devices. I see myself as an average user and I easily get through a day with my dhd, 24hrs plus.
The battery life on my desire is abit better but not by much as I always plug it in every night in anycase.
I have Facebook, emails sync every hour, WiFi on the whole time, 30 to 40 mins of gaming, and listening to some music when I'm bored, 10 to 15 min on the web, atleast 4 calls made or received and texting the whole time. This is average usage for me, so I think you should be fine.
Sent from my Desire HD using XDA App

PC Pro put the DHD at the bottom in its battery tests, lower than the Desire. But in the alternate universe inhabited by some people in this forum, I'm sure the Desire is better.
Sent from my Desire HD using XDA App

bobbyelliott said:
PC Pro put the DHD at the bottom in its battery tests, lower than the Desire. But in the alternate universe inhabited by some people in this forum, I'm sure the Desire is better.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
@bobbyelliott maybe functions that didnt much affect the battery of the Desire (screen usage I presume) due to AMOLED, have greater effect on the DHD, and vice versa?
But getting mixed reviews is confusing. Shame that I dont know anyone with a DHD to check hands-on. And the battery needs some time to adjust, as I ve seen in this forum posts, and they had done the battery test straight out of the box I think?
Anyway I m still leaning towards the DHD for its big screen. But I dont see a point buying such a powerhouse with so much underpowered battery.
Maybe should I wait and see if something like Thunderbolt gets available for sim-free?

had Desire for 6 months and am a DHD user for less than 3 weeks now..
battery life is very similar, maybe slightly better on Desire..
am a light user; 5-10 sms per day, a call or two, sync only gmail & weather (every 2 hrs).. some web surfing (30 minutes) and installing/uninstalling of apps..
with above usage i charge battery every 2 days

I can't compare with the Desire (I'm comming from a Touch HD - the greatest phone of it's time ), but I can easyly get through the day with one charge. Obviously the screen is the biggest drain, so if you need the battery to last more, you have to limit your "screen time" and I keep my brightness set to auto. Due to the nature of my job, I make a lot of calls (maybe 40-50 mins a day), browsing+XDA ~40 mins a day, ebooks for about 30 mins (screen brightnes set to minimum for that), and when I have to use GPS (very rarely), I always charge the phone during that time, because I use GPS only while driving. Also I'm almost always on 3G, wifi and bluetooth always on. I don't use facebook or twitter, but I sync the news feeds, weather, POP3 mail, gmail is set to push, sense is also syncing... and I think that's about everything worth mentioning.
I rarely play games though, so this might bring the battery down if you do, but I think you can still get through the day (actually that's 16 not 24 hours - you have to sleep sometime ). Also if you have a "battery heavy" day, you can always put some juice in the phone while driving home after work.

XartzMAX said:
@junta_mpb an @MattSkeet Many thanks again. Getting a solid picture now
Just another quick question, do you keep the syncing, email and social network updates, to frequent checking (for ex 1 hr basis) and use GPS daily?
And how much "screen time" roughly do you get until the battery level gets critical?
Click to expand...
Click to collapse
Here is roughly my day.
Wake up at 6am phone off the charger walk to work and play on it for about 15min.
During work I play (same games some internet some engadget ) here and there for about 10min plus 30+ on my break so all together will be more than 1,5hrs finish work at 4pm and my battery is at about 60-70% get back home surf the net for half hour and turn on hotspot (don't have proper internet at home) this itself drains a lot of battery but if I don't use hotspot and play with the phone instead I manage to get till about 5 5,30 till phone battery goes down to 20% and this is very heavy usage. Had days (Fridays ;p) where after work I didn't use the phone much just few text and it lasted me till next day with about 15% left.
Things is I don't call much. I have 900min and this month used only 100 (lol)
My updates are every 3hrs, push for gmail (i have one account for my regular emails and one just to store contacts without any crappy email addresses) gmail used as exchange account.
Screen on 23% brightness.
Lately battery is draining fast because I've installed whatsapp as my miss is abroad so we save some pennies
Sent from my HTC Desire HD using XDA App

[SOLVED] Final Decision : Going with the Original Desire!
I was doing some more research, and Decided to buy the 'Old' Desire
And Thank you all for your contribution with experiences and thoughts, guys trust me it did help eventhough I didnt go for the DHD !
So for everyone I m gonna breakdown the reasons for my decision. (at least on the paper Desire outscored the DHD)
Battery Life
A huge factor if not the critical. I found that Desire has better Battery life than DHD, in comments I found Desire "Only lasts a day\ have to recharge everyday" etc and with DHD I found "Battery life is abysmal dont last the day\ have to plug in for midday charge" etc, but I know some of you guys anyway manage to keep the juice to last the day, anyway Desire 1 point...
Quadrant Score
http://smartphonebenchmarks.com/ (with 1GHz ranking) WOW this is INCREDIBLE ! Desire outsmarted the DHD came up with 3rd in benchmark with 1. Samsung Epic 4G 2. Samsung Galaxy S 3. LG Optimus 2X (dual core anyway) so its actually second place considering both first two are identical. (now who says Desire is not for gaming???)
Techradar No. 1 phone of all times
with DHD on the 3rd place http://www.techradar.com/news/phone...e-phones-in-the-world-today-645440?artc_pg=21
Pixel Density
Not a big point but anyway a point for desire.
Looks
DHD looks minimalistic on the face and Desire looks good too. And the physical Buttons on Desire... (are they better than the capacitive counterparts?)
Design
I dont like the patchy design of the DHD to be honest. Looks less durable and what about the gap between the bottom door? Cant put a custom cover to get bigger battery even. And the kickstand is utterly useless for many if used with a casing which is mostly the case. And the camera protruding out is menacing and accident prone.
Size and Weight
164g Vs 135g big deal. Pocketability issues, bulge, and for the long hours at the University it's gonna cost me some uncomfortable time.
Camera
Desire's cam is not the best, washed off colors etc.. but is the cam on the DHD fantastic? Nope, focus errors, too much sharpening etc. But HD footage is really cool. Not a big improvement worth considering I think.
DHD issues
Reception issues, (death grip?) , Sometimes lagging (occational 100% CPU usage, saw in a thread in XDA) Desire's problems were ironed out mostly I guess with the hardware revisions. No more overheat etc....
Loudness
Desire is louder than DHD http://www.gsmarena.com/htc_desire-review-468p8.php and http://www.gsmarena.com/htc_desire_... my Desire. Any more comments are welcome. :D

Just one more thing to add, I think the DHD is an overkill. They've got the same snappy so the apps should run at the same speed. And android doesnt have too many 3D games (yet) and I think Desire will do fine until at least the end of this year. Then the dual core phone will go mainstream and prices will fall. So even with the Adreno 205 I dont think DHD is leaps and bounds ahead of the Desire in technology aspect. (buy anyway we can port the DHD rom to desire !!)
Cheers.

XartzMAX said:
Just one more thing to add, I think the DHD is an overkill. They've got the same snappy so the apps should run at the same speed. And android doesnt have too many 3D games (yet) and I think Desire will do fine until at least the end of this year. Then the dual core phone will go mainstream and prices will fall. So even with the Adreno 205 I dont think DHD is leaps and bounds ahead of the Desire in technology aspect. (buy anyway we can port the DHD rom to desire !!)
Cheers.
Click to expand...
Click to collapse
It's not the same snappy. Desire hd has the second generation version which uses less power and overclocks better.
-----
Someone Swyped my idea.

Near 2 months of using DHD. Battery life is improving.
Sent from my Desire HD using XDA App

This review shows the DHD battery lasts longer:
http://www.fastbutter.com/Article/227/HTC-In-Depth-Review--HTC-Desire-HD
"Despite Desire HD has a battery of 1230 mAh it sweep the carpet with its older sibling Desire with its 1400 mAh battery. When Desire goes out after almost exactly five hours Desire HD still have 19% battery left and rolls on for one hour and two minutes more- despite the smaller battery."
I guess the people with battery problems are having the cpu draining /init bug.

Battery life survey?

I haven't been able to find any threads that already cover this. There are several reviews, users' opinions etc on how long the battery in a particular smartphone lasts, but it's always struck me as odd that this information isn't easy to compare - it could lead to name-and-shame for particularly bad phones or encouraging results for those manufacturers who actually cared & made improvements.
I've found a few people who had the same idea, and one of them (being a much more web-capable person than me) actually made a website for this purpose. I really don't want this to sound like advertising, because the purpose isn't to make anyone any money, but simply to centralise this kind of information and have some (arguably) more meaningful stats driven by and for the benefit of everyone who wants to know.
If you think this could work & be a good idea, please take a look at the site - http://www.wewantbatterylife.com/ . If you think it's a rubbish idea and/or have objections, flame away.

the li-ion batteries normaly have longer life than the old phones...so it will last enough time..u'll probably replace your phone before the battery dies Probably u can ruin it with overclocking your device or something..but draining is something else
ps: im trollling again :O

Hehe, I meant battery life as in "how long does your battery last from a full charge until it runs out?", but yes, mini-troll It's all good..

Hi,
I have another question about batterie life. I don't know if it has been already treated somewhere else in the forum.
I will receive the 2000mha batterie today. What is the best way to calibrate it?
Fully discharge it then full charge or full charge before first use?
Thanks for you help!
Envoyé depuis mon GT-I9100 avec Tapatalk

my battery in nexus s long about 4 houres in full use , that is problem ?
what can i do ?

Nice site, and it will only grow more useful the more people input their info. Although looking at the results, some of those 30+ hour claims seem outlandish.

my stock galaxy note battery takes me 6 hours to lose 50%. hope it could last longer.

On my Galaxy S running ICS 4.0.4 Dark Knight 2.2, my battery lose about 25% by day. But with light use (1 or 2 calls, some SMS, GMail sync, ...)

really miss the days with my old nokia which i only needed to charge every two or three days haha.....

happyuser said:
really miss the days with my old nokia which i only needed to charge every two or three days haha.....
Click to expand...
Click to collapse
Really miss that 1 inch display to. LOL.
Sent from my SGH-T989 using XDA

my phone keep charged almost 1 day

I don't know if it happen for someone else but i noticed a sort of "bug" with my HTC HD7. (Bought in December 2010)
If i reboot my phone when the charge is at X%, after the reboot, the charge level will be ~10% less than X ... and the phone will stay a very very long time at this percentage.
(For exemple, if after a reboot, i'm at 75%, the battery could stay at this level for all the day)
So as I imagine, it decalibrates the battery level and to make a new time the calibration i have to let my phone fully discharge and fully recharge to solve this bug.
Strange ...
(Sorry for my english guys, I hope i can be understand)

It seems that smartphones need more juice daily. However if you disconnect the mobile packet data whenever you are in range of WLAN you might get 2 days with one charge.
I am actually quite amazed how well my Samsung Galaxy S1 original battery has lasted almost 2 years. When I first started this smartphone journey with my S1 I thought that it will not last one year. I am glad that I was proven wrong.

Batteries
Definetely Smartphones need better batteries, especialy after we got used on some phones to last even 4 days like I had previously Nokia C7, and after that i bought Galaxy S2, and its battery lasts only 1 day, now thats really sad

my sgs+ with a custom rom (gigabread+) is alive up to 24 h.

My I9001 is at 30% at the end of the day (connected to wifi all the time)

battery life xperia s
my xperia s last 3 days with making some calls abou ta half an hour surfing on 3g a day and sometimes a game but when i use it a lot is lasts about one day and a half

HTC HD2 on nand android does ~4-6mah an hour on standbay, depending on torture i give it, it lasts a day to a day and half

My Samsung Note (stock 4.0.3), WiFi on all day, and average use (business mail, whats-app, games, some browsing)
after 15 hours the battery is still 40%~50%
i use SetCPU, it throttles up the CPU if its needed, at idle it runs at 200 MHz instead of 1.4 GHz

My SGS2 can last almost 2 days without using data. Its pretty good on battery