• After 15+ years, we've made a big change: Android Forums is now Early Bird Club. Learn more here.

Desire battery consumption

I haven't charged my Desire since Tuesday morning and I still have 70% battery.

If your phone is running flat in 14 hours, something just has to be running .

Ian
 
I read a bit of page 1 and scanned through page 3 and no one mentioned poor signal.....

Today I was attending a course at another place and notice battery drained quite fast due to "cell standby". This room I am in has no windows, and I reckon its the poor signal strength that drained the battery......

I believe this is a known and confirmed fact?
 
^ I agree with this. My battery dies within a few hours if there's no signal or a very poor signal. Happened on my previous non-HTC phone too. The phone transmits on higher power I believe to try to talk to nearby cells and that kills the battery.
 
Hi thanks for all your replies, ive had a look at running services in applications and the only 2 things that are running are:

Calendar - Process: com.htc.bg

Touch Input - Process: com.htc.android.htcime


Battery Use:

Cell Standby 44%
Phone Idle 46%
Android System 6%
Display 4%

I live in a good signal area. As I work from home, the phone only leaves my house a handful of times a week, no different from how i had been using it previous to this issue. At the moment ive gone back to using my n97 just so i can try and narrow down the problem with the HTC. I took it off charge at 1pm today, the phone has not made a single call or text, has a healthy reception, no tasks running, no sync or any kind of data connection and it is now half empty.

Ive already contacted HTC about this, I dont normally do these things on a whim but i feel that im pretty much backed into a corner with no options on this one, I have tried all manner of different things including a factory reset and following every desire battery life tip around and it just makes no difference. Am still waiting for a reply from them however. Would you think this is more likely a handset problem or a battery problem? I work in the tech industry and of course I am aware that batteries degrade after a certain amount of usage but as i mentioned previously i have only had the phone for 2 months so I find it hard to even consider it is the battery.

I wonder if HTC will actually exchange this phone for me or would they consider 14 hour standby time within the bracket of acceptability... hmmm
 
Ive already contacted HTC about this, I dont normally do these things on a whim but i feel that im pretty much backed into a corner with no options on this one, I have tried all manner of different things including a factory reset and following every desire battery life tip around and it just makes no difference. Am still waiting for a reply from them however. Would you think this is more likely a handset problem or a battery problem? I work in the tech industry and of course I am aware that batteries degrade after a certain amount of usage but as i mentioned previously i have only had the phone for 2 months so I find it hard to even consider it is the battery.

I wonder if HTC will actually exchange this phone for me or would they consider 14 hour standby time within the bracket of acceptability... hmmm

After you factory resetted your phone, you didn't install any apps and got only 12 hours on standby right?

Have you tried putting your phone on airplane mode for the day? Since as mentioned above...it does seem like a reception problem...so it MIGHT be your radio that's not working.

Cell Standby 44%
Phone Idle 46%
<--seems like your phone is working REALLY hard looking for signals.

When I'm on airplane mode, 10 hours stand by and my battery drops by less than 5% (when I go to sleep)

If you're getting similar results with Airplane mode, then it might be your radio.

I'd think the first thing that HTC would do is send you a replacement battery since your complaint stems from very very poor battery life.
 
thank you very much for your reply, that is an excellent idea putting it in airplane mode to see if it is a radio issue.

To update you, i decided to charge the phone differently last night. I let it run until the battery ran out and then gave it a full charge while the phone was turned off as opposed to being on and charging. It has been off of the charger now for 5 hours, have made 2 calls and sent 2 texts and the battery appears to have only dropped by 20%, which is not great but at the same time that could spell out a 25 hour stanby which is the area i would prefer to be in. Perhaps it is too early to tell. We shall see how it copes by the end of the day <watch this space>
 
Hi thanks for all your replies, ive had a look at running services in applications and the only 2 things that are running are:

Calendar - Process: com.htc.bg
-link-

My only other suggestion would have been something you just did, running the battery down until the phone turns off before recharging. This should be done once a month to reset the battery level meter.

good luck
 
Some people have mentioned that the 'TaskKiller' program itself uses up vast amounts of power. Surely some mistake?
 
thank you very much for your reply, that is an excellent idea putting it in airplane mode to see if it is a radio issue.

To update you, i decided to charge the phone differently last night. I let it run until the battery ran out and then gave it a full charge while the phone was turned off as opposed to being on and charging. It has been off of the charger now for 5 hours, have made 2 calls and sent 2 texts and the battery appears to have only dropped by 20%, which is not great but at the same time that could spell out a 25 hour stanby which is the area i would prefer to be in. Perhaps it is too early to tell. We shall see how it copes by the end of the day <watch this space>


Right, its 2.40 am and the phone has now been on for exatcly 14 hours, it has had some fairly light use, approx 5 short calls, 5 texts and 10 mins of youtube streaming (gprs) during the course of the day and the battery is now at half - which is a significant improvement on the previous 2 weeks. Can it be a coincedence that this happens after I charged the phone while it was turned off as opposed to charging it while it is turned on? (from 0% batt in both cases)

Im not sure what conclusions to draw on this, it is very strange and im trying to understand if this can narrow down the issue based on today, im going to let it run dry again and charge it while the phone is off (again) and see if that even furthers it, after which I will try the 'Airplane Mode' method and see what results that yields. The experiment continues...

Will update as appropriate
 
Why does everyone let their phone go to 0% ?

You're doing nothing more than speeding up the decline of your battery the more you do it! Li-ion batterys don't like being discharged or overcharged.
 
Right, its 2.40 am and the phone has now been on for exatcly 14 hours, it has had some fairly light use, approx 5 short calls, 5 texts and 10 mins of youtube streaming (gprs) during the course of the day and the battery is now at half - which is a significant improvement on the previous 2 weeks. Can it be a coincedence that this happens after I charged the phone while it was turned off as opposed to charging it while it is turned on? (from 0% batt in both cases)

Im not sure what conclusions to draw on this, it is very strange and im trying to understand if this can narrow down the issue based on today, im going to let it run dry again and charge it while the phone is off (again) and see if that even furthers it, after which I will try the 'Airplane Mode' method and see what results that yields. The experiment continues...

Will update as appropriate

I still think it's the so called "calendar" process causing you the most trouble. for which there is a solution I linked to in my last post.

Why does everyone let their phone go to 0% ?

You're doing nothing more than speeding up the decline of your battery the more you do it! Li-ion batterys don't like being discharged or overcharged.

True, but 0% on the phone is not 0% on the battery. What's not a good idea is trying to turn it back on several times when it has run down. Further, running the phone down to 0% all the time is not a good idea. doing it once a month to reset the battery level meter is.
 
But you're not actually resetting the battery meter.

The battery has a voltage/mah capacity. The phone reads this and displays the appropriate battery level.

If I run my multimeter flat once a month, it doesnt calibrate it to read 'correctly' or any better. The phone is doing the same job, albeit with much simpler electronics.

If yopu want to calibrate your phone, then send it to an electronics calibration/test firm (see your local yellow pages)
 
But you're not actually resetting the battery meter.

The battery has a voltage/mah capacity. The phone reads this and displays the appropriate battery level.

If I run my multimeter flat once a month, it doesnt calibrate it to read 'correctly' or any better. The phone is doing the same job, albeit with much simpler electronics.

If yopu want to calibrate your phone, then send it to an electronics calibration/test firm (see your local yellow pages)

Actually, they have an in-built self calibration feature that can not be properly activated if the phone never receives a full discharge. The Phenomenon is usually referred to as Digital Memory.

It's recommended that you only fully discharge the battery about once every 30 cycles, so if you charge it once per day, then about once a month.
 
Hiya folks, hope you all had great weekends with excellent cellphone standby times - To update you on my situation - battery life doesnt really seem to have improved too much (16-20 hours), one thing i did notice however reading back over the posts are the running services on the phone. When going to menu>settings>applications>running services, the only 2 running services in there are:

Calendar - Process: com.htc.bg
ConnectivityService (Started by application: touch to stop)

Touch Input - Process: com.htc.android.htcime
Touch Input (Input Method: touch to manage)

now you have suggested that 'Calendar' could be the culprit here, however when I 'touch to stop' to stop the service, it doesnt stop it, it just resets the time that it has been running back to 00:00 and then just carries on running. Does anyone have this service on their Deisre and does it behave in the same way? or have I exposed the problem here?

On another note, I emailed both Carphone Warehouse (where I got the phone from) and HTC and both have replied offering for me to send it in for repair, if i am unable to solve this battery life problem, who would I be better off sending this too or am i to assume it would end up in the same place? thanks in advance for your replies
 
i have found that my battery has improved a lot of late - I uninstalled AdvancedTaskKiller, so that might have helped

The last charge lasted about 36 hours - that included sending a number of texts, playing Basketball Lite, some internet browsing (probably about an hour and a half in total) - also playing teletubby clips on youtube regularly to keep the young un entertained
 
Hiya folks, hope you all had great weekends with excellent cellphone standby times - To update you on my situation - battery life doesnt really seem to have improved too much (16-20 hours), one thing i did notice however reading back over the posts are the running services on the phone. When going to menu>settings>applications>running services, the only 2 running services in there are:

Calendar - Process: com.htc.bg
ConnectivityService (Started by application: touch to stop)

Touch Input - Process: com.htc.android.htcime
Touch Input (Input Method: touch to manage)

now you have suggested that 'Calendar' could be the culprit here, however when I 'touch to stop' to stop the service, it doesnt stop it, it just resets the time that it has been running back to 00:00 and then just carries on running. Does anyone have this service on their Deisre and does it behave in the same way? or have I exposed the problem here?

On another note, I emailed both Carphone Warehouse (where I got the phone from) and HTC and both have replied offering for me to send it in for repair, if i am unable to solve this battery life problem, who would I be better off sending this too or am i to assume it would end up in the same place? thanks in advance for your replies

Yes, you have to stop another service to get calendar to stop, but I forget which one now. I bet if you go to:

settings>accounts & sync

and start removing those accounts, the problem will be solved. When I was having this issue, I just deleted everything that wasn't essential, or in other words, everything but my gmail account. I could probably re-add them one at a time & see which ones let my phone sleep properly, but I can live without twitter etc.

I also suspect that it's possible to re-add them all & not have the problem re-occur since not everyone is having this issue.

As for who to send your phone too if you do send it in for service, HTC will be the quickest. The shop will either just send it to HTC or a 3rd party repairer & you'd have to wait for those extra transit times.
 
Li-ion doesn't suffer memory effect

Yes, that is quite correct. What is often referred to as the memory effect is where crystallisation forms around the active material (like the nickel plate) effectively blocking the electrolytes from reaching the active material. In severe cases, the crystals grow so large they effectively short out the 2 active materials in the battery, making the battery useless.

Lithium batteries do not suffer from this particular problem, however, they do suffer from a completely different issue that is often referred to as the digital memory effect, even though the 2 problems do not have even remotely similar causes. They do however, have remarkably similar results.
 
The Desire strikes a perfect balance between design, features and ... a variety of widgets to manage the battery consumption as much as is possible
 
Yes, you have to stop another service to get calendar to stop, but I forget which one now. I bet if you go to:

settings>accounts & sync

and start removing those accounts, the problem will be solved. When I was having this issue, I just deleted everything that wasn't essential, or in other words, everything but my gmail account. I could probably re-add them one at a time & see which ones let my phone sleep properly, but I can live without twitter etc.

I also suspect that it's possible to re-add them all & not have the problem re-occur since not everyone is having this issue.

As for who to send your phone too if you do send it in for service, HTC will be the quickest. The shop will either just send it to HTC or a 3rd party repairer & you'd have to wait for those extra transit times.


thanks for the reply, i managed to get the calendar service to stop by opening up the calendar program and then closing it again, then i stopped the service. As for 'accounts and sync' I only have the google account which is linked to the android market, stocks and weather, i am unable to remove any of these but seeing as i have background data off im hoping that wont make a difference. Anyway it has now had a full charge, so we shall see how it performs today without the calendar app running. Ill pop it off to HTC midweek if it is still a problem
 
Stopping the 'Calendar' process didnt seem to make much difference - am arranging for the HTC courier to collect the handset in the coming days :-(

im not losing faith in it though, id still say its one of the best phones ive used if not the best, (considering i once had a SonyEricsson P900 - who remembers those beauties?!)

anyway - ill see if i can extract details of the problem out of HTC and will certainly post the results here for anyone else experiencing this issue
 
Hey guys,

Im sorry Im a newbie but how do you guys know the percentage of your battery left?

Thanks for all the useful comments on here...am trying them as we speak!

Mikecufc
 
Back
Top Bottom