Develop Bugs

How to disable USB Charging in Hermes WM6

Hi
I have upgraded my Dopod 838pro from WM5 to WM6 with the official ROM from HTC.
I connect my 838pro frequently using USB cable to my desktop to surf the net. In order not to ruin my battery, I disable the USB charging feature in WM5 (under the power ->advanced tab).
However, after I upgraded to WM6, this feature is lost. I tried the registry hack for WM5 but it didnt work for me in WM6.
Can someone help to let me know how can I disable USB charging in WM6? Thanks a million.

Why do you care? A brand new battery is around 10-20 bucks in ebay. I have been charging with usb for the last 4 months and didn't observe any significant battery life drop. I wouldn't mind buying a new battery for $15 every 2 years.
I would be changing my tytn in 2 years anyway.

I have been charging my previous battery frequently and it last only 5 hours from 100% to 10% with minimum usage now. That battery is only 1 year old. I have just bought a new battery and hence would like to preserve it abit longer until I have found my next good phone

Plenty of people have reported batteries going down quicker with certain ROMs, especially dependent on the radio version. Is it possible your battery is not the problem? Is the new battery definitely better?
When the light turns green it's stopped charging, so shouldn't overcharge. Li-ion batteries don't have memory problems.

gregnash said:
Plenty of people have reported batteries going down quicker with certain ROMs, especially dependent on the radio version. Is it possible your battery is not the problem? Is the new battery definitely better?
When the light turns green it's stopped charging, so shouldn't overcharge. Li-ion batteries don't have memory problems.
Click to expand...
Click to collapse
It's not memory problems that these batteries develop. It's more that they have a certain number of charge cycles before their performance degrades. Most Li-ions I believe are rated to about 500 cycles tops before the battery life drops below 80%. So every time you plug it into the computer it would kind of count as a cycle. So a large amount of charge cycles and these batteries will degrade much quicker than normal.

Since 1 year I allways connect and charge nearly every day my little toy via USB. Never had battery drop. Even now with the new Radio and WM6 its works much longer as before.

gregnash said:
Plenty of people have reported batteries going down quicker with certain ROMs, especially dependent on the radio version. Is it possible your battery is not the problem? Is the new battery definitely better?
When the light turns green it's stopped charging, so shouldn't overcharge. Li-ion batteries don't have memory problems.
Click to expand...
Click to collapse
I second that. It sounds more like a rom problem than a battery problem. After
all, there are people (including me) who keep charging via USB and don't
experience battery problems.

The last 4 months I've only charged my device with the USB connection and have no battery problems.
BTW: There is no way to turn the USB charging off, unless u cut some wires & remove some pins. see prior thread discussion:
http://forum.xda-developers.com/showthread.php?t=273344

I charge my phone like a million times a day it seems. Between car charger, home charger, usb from my pc. It gets plugged into things at least 3 times a day if not a lot more when I'm at home messing with stuff on it while its plugged into the pc. Battery works just as good as it did when I got the phone over a year ago. And working in the cell phone industry for years I still say that this phones battery life is amazing compared to most other phones. Even a year later this battery seems to last longer than any other pda battery especially considering all the things I do with it. ie: gps/irc/streaming audio/video via orb/talking on the phone with the woman. Can usually go 2 days of avg usage doing all that providing hsdpa is disabled. Once I turn on hsdpa I get almost a full day of avg usage.
Edit: All that being said, seems like a big waste of time worrying about disabling charging over usb considering how cheap a new battery is and how little a impact it seems to make anyway considering other peoples testimonials. Just my 2 cents.

Found this in Hermes Wiki:
Disable charging when connected to USB
Registry entry to control USB charging:
[HKLM\\Drivers\BuiltIn\Battery\EnableUSBCharging]
if EnableUSBCharging = 1 --> Phone will be charged when connected to a USB power (laptop, etc.)
if EnableUSBCharging = 0 --> Phone will not be charged
I have not yet tried this myself though.
Source

Li-ion Batteries
I was doing some research about Li-ion batteries and came across this info - How to prolong lithium-based batteries.
Seems like the more you charge them and not totally discharge them the better.
Sogam

I have a DOPOD 838Pro which I upgraded to WM6.0 as well. The battery issue is well documented and has less to do with cycles or memory effect than it has to do with your settings. Upon upgrading from WM5.0, I noticed that the backlight setting for "on battery" was reset to half way. I normally used it on the leftmost side turning the display readable indoors. There is no point in setting the backlight to the maximum or even to the middle, as the screen provides poor reading outdoors anyway.
In my experience it increased my battery life between 25 to 35% taking an average working day, i.e. average number of hours on the phone.
Cheers

You can get a replacement battery here for only $7.29 shipped. Shipping takes about 2 weeks though but cheap.

Only had my Hermes a few weeks, but I've owned Compaq/HP IPAQ's for the last 6+ years. They always said in the manuals it was best to keep the device connected/charging as often as possible. Out of those devices I have only replaced batteries once for each device over the years, so I think it works well. My Hermes gets connected to my desktop at home and work most of the time, though I admit since its a phone and has better battery life then my Ipaqs I do connect is a bit less often.
That said, as others have written, batteris are cheap and unlike Apple devices, user replaceable. Thank you HTC!

KarhU said:
Found this in Hermes Wiki:
Disable charging when connected to USB
Registry entry to control USB charging:
[HKLM\\Drivers\BuiltIn\Battery\EnableUSBCharging]
if EnableUSBCharging = 1 --> Phone will be charged when connected to a USB power (laptop, etc.)
if EnableUSBCharging = 0 --> Phone will not be charged
I have not yet tried this myself though.
Source
Click to expand...
Click to collapse
Thanks alot for that. I needed it. My laptop used to charge when i connect my HTC Touch Pro, but then it stopped. I changed the registry you listed and it charges again.

Firmware version related to battery life?

Since there now seem to be a few different firmware versions floating around, shall we see if any of them give better battery life.
Of course we don't have an objective measure of battery life, but we cna get an impression.
My experience:
TMobile UK f/w 1.15.110.10
Battery poor - It needs topping up through the day or I won't make it to teatime, worse than my Touch HD which was 18m old. Similar usage, ie push email, Twitter sync, intermittent browsing, an hour a day ebook reading.

T-mobile UK same firmware
Battery fine, much better than my old G1, need to charge every other day (as opposed to everyday/overnight each day).
Uses (per day):
Push Email
Light Web browsing
About an hour of gaming
About 40 SMS sent
Twitter/Facebook constantly
About 2 hours of music usage - Spotify
Music using BT Earphones, Bluetooth on around 2.5 hours.

That's a big difference in battery life between you two, I wonder if there is a bad batch of batteries?

I think it has nothing to do with batteries or software. It's all about how the phone is used, what the signal strength is, etc.
Mine lasts two days on moderate use, but I charge it every night anyway.

brummiesteven said:
T-mobile UK same firmware
Battery fine, much better than my old G1, need to charge every other day (as opposed to everyday/overnight each day).
Uses (per day):
Push Email
Light Web browsing
About an hour of gaming
About 40 SMS sent
Twitter/Facebook constantly
About 2 hours of music usage - Spotify
Music using BT Earphones, Bluetooth on around 2.5 hours.
Click to expand...
Click to collapse
I also have the matrix style live wallpaper running http://www.cyrket.com/p/android/fishnoodle.digitalrain/.
It may be worth noting that I no longer charge overnight, only charging when it's low and until it's fully charged (I used to charge my G1 overnight or basically when I was on the desk, it became overcharged, battery swelled up, would only last about 2 hours but sometimes it would last about 10 minutes).
I also have no problems with signal and am pretty much constantly on HSDPA.

brummiesteven said:
I also have the matrix style live wallpaper running http://www.cyrket.com/p/android/fishnoodle.digitalrain/.
It may be worth noting that I no longer charge overnight, only charging when it's low and until it's fully charged (I used to charge my G1 overnight or basically when I was on the desk, it became overcharged, battery swelled up, would only last about 2 hours but sometimes it would last about 10 minutes).
I also have no problems with signal and am pretty much constantly on HSDPA.
Click to expand...
Click to collapse
how long full charge takes ? at what battery % you start to charge ur phone?
did you charge till full since you first unbox your phone?

I have my brightness set to half way and have watched a few movie clips lasting maybe 20 mins and have just done a bit of brief messing about and i find the battery drains to about half way after this.
I have not let it drain out yet but it does not look like it would last a day if i had to listen to music surf and do a bit of gaming.

patp said:
Since there now seem to be a few different firmware versions floating around, shall we see if any of them give better battery life.
Of course we don't have an objective measure of battery life, but we cna get an impression.
My experience:
TMobile UK f/w 1.15.110.10
Battery poor - It needs topping up through the day or I won't make it to teatime, worse than my Touch HD which was 18m old. Similar usage, ie push email, Twitter sync, intermittent browsing, an hour a day ebook reading.
Click to expand...
Click to collapse
My firmware is same but battery is brilliant for me, try using a power manager and maybe look at widgets draining battery. I'm not using any widgets and have net off when not in use.

I wonder if it's about signal strength. By far the biggest drain on a smartphone is 3G, and my signal is quite variable.

patp said:
I wonder if it's about signal strength. By far the biggest drain on a smartphone is 3G, and my signal is quite variable.
Click to expand...
Click to collapse
I've just came back from Austria where I was using the net a lot over there for various things and I can tell you now, the signals over there are top notch!
The speeds remain consistent and the signals never go down by more than by one bar.
The T-Mobile network works perfectly even in the Underground!
This I feel had contributed to my battery lasting so long the last 3 days!
I've already noticed more of a drain since being back at home today!

cez10 said:
how long full charge takes ? at what battery % you start to charge ur phone?
did you charge till full since you first unbox your phone?
Click to expand...
Click to collapse
Maybe about 2/3 hours? Maybe more, I don't exactly time it.
I put it on charge when it starts blinking so less than 14%
Yes I charged it full when I got the phone but that was only for an hour.

brummiesteven said:
I also have the matrix style live wallpaper running http://www.cyrket.com/p/android/fishnoodle.digitalrain/.
It may be worth noting that I no longer charge overnight, only charging when it's low and until it's fully charged (I used to charge my G1 overnight or basically when I was on the desk, it became overcharged, battery swelled up, would only last about 2 hours but sometimes it would last about 10 minutes).
I also have no problems with signal and am pretty much constantly on HSDPA.
Click to expand...
Click to collapse
I think if you continually charge from when you have 30-90% the battery will perform worse than if you charge it from dead / near dead. I have been charging my tp2 over night when the battery is extremely low and can now squeeze 3-4 days use out of it.

shure2 said:
I think if you continually charge from when you have 30-90% the battery will perform worse than if you charge it from dead / near dead. I have been charging my tp2 over night when the battery is extremely low and can now squeeze 3-4 days use out of it.
Click to expand...
Click to collapse
I charge it when its below 15%

brummiesteven said:
Maybe about 2/3 hours? Maybe more, I don't exactly time it.
I put it on charge when it starts blinking so less than 14%
Yes I charged it full when I got the phone but that was only for an hour.
Click to expand...
Click to collapse
great thanks for the info

shure2 said:
I think if you continually charge from when you have 30-90% the battery will perform worse than if you charge it from dead / near dead. I have been charging my tp2 over night when the battery is extremely low and can now squeeze 3-4 days use out of it.
Click to expand...
Click to collapse
It doesn't really matter with Li-ion batteries. It is recommended to do a full discharge every 30 charge cycles or so for the gauge to recalibrate, but the battery itself has no "memory" effect.
There's no difference if you charge it from 70% or 15%

choccy31 said:
I've just came back from Austria where I was using the net a lot over there for various things and I can tell you now, the signals over there are top notch!
The speeds remain consistent and the signals never go down by more than by one bar.
The T-Mobile network works perfectly even in the Underground!
This I feel had contributed to my battery lasting so long the last 3 days!
I've already noticed more of a drain since being back at home today!
Click to expand...
Click to collapse
That must cost a fair bit on the data doesn't it?
I've found with my T-Mobile Desire that the battery is really struggling and I can't get it to last a day as yet. I spent 3 hours with a friend that has an unbranded one and I saw my T-Mobile rom'd battery life deplete faster than his doing the same things. I think the T-Mobile ROM needs an update asap!

Since my last post, my battery the last few days has been bad.
I've also noticed now that it will only charge up to 98% and will only go to 100% if i remove cable and put back in. Then only to drop back to 98% straight away after I have removed it and then drop rapidly.
On T-Mobile using the older firware. Have asked T-Mob if the Firmware is the issue.

My honest guess is that all you guys will see an improvement in battery life over the next few days. Li-on batteries do need a few cycles before they'll give best performance and obviously no-one here has had their phone for more than a week or two.
I'm sure as the phone is rooted/custom roms appear/htc release the kernel/blah blah improvements will be made, but if I were you I'd definitely sit out any changes made purely on the basis of battery life until you've had the phone a couple of weeks. If it's still crappy after that, then it's obviously worth looking deeper.

I'm on tmob contact phone with my firmware version @ *.11 think some ppl have *.10 so not sure if the ota update will come to me but I've found that if I turn everything to manual update and turn 3g off when not using it I can get 3 days out of it with about 1 and a half hours each day of general use. Before that it wasn't lasting a full day! What firmware is every1 on??

eLv./.G1 said:
I'm on tmob contact phone with my firmware version @ *.11 think some ppl have *.10 so not sure if the ota update will come to me but I've found that if I turn everything to manual update and turn 3g off when not using it I can get 3 days out of it with about 1 and a half hours each day of general use. Before that it wasn't lasting a full day! What firmware is every1 on??
Click to expand...
Click to collapse
Mine is .10 - the Battery at first was really good, I used it abroad in first few days and was great, 3G was used everynow and then, but wasn't a drain like it is over here in UK.
Now i'm getting last few days were on charge it sticks at 98% and drops pretty quickly.
T-Mob have asked me to factory reset it today and monitor to see if any apps are causing the issue rather than the firmware.

Battery doesn't last long. should i change it?

Ok, my battery is weird it doesnt last long. it dropped from abut 95% to 70% over night, with checking email every 30 minutes with k9 and the mail app every 4 hours. My phone doesn't last very long either, I haven't tested it fully. I always keep charging it, when im in the house.
I bought it from T-Mobile and i could swap it. Should I?
Jason

Might be worth it, I have Friendstream updating default setting, Googlemail (although it's push) on at all times, browsing a fair bit (on mobile net and WiFi) and a few calls and it last 2 days-ish...I'm using a generic Desire on latest FW

Mine's the same. I didn't think it would be worse than my old BB Bold for battery life, but it really is very poor. I don't think you have a fault, it's just the way it is.
I wondered about closing background apps but I've read that having them open doesn't impact battery life. I do have a few background things going on though that will affect it, so maybe I need to consider if I really need them or not (frequent email syncing, contacts/calendar syncs, etc.).

EddyOS said:
Might be worth it, I have Friendstream updating default setting, Googlemail (although it's push) on at all times, browsing a fair bit (on mobile net and WiFi) and a few calls and it last 2 days-ish...I'm using a generic Desire on latest FW
Click to expand...
Click to collapse
Have you put the phone down for long periods in-between uses, or have you spent a fair time writing emails or just playing with it? I've spent a fair time on mine but not constantly, and no more than I used to with my BB Bold. I used to writing emails constantly on my Bold and the battery would last a good day, but until I'm used to this keyboard I won't be doing that on my Desire.

So It won't make a difference if i swap it? I also didn't do the standard charge at the start. Couldn't resist playing with it. So It was on charge while playing with it. Could that make a difference?

I'm in work a lot and I'm not constantly on it - just check for emails/SMSs every hour or so so prob spends a lot of the time in standby. I'm on it more on the weekends but it still lasts well into day 2

sharp910sh said:
So It won't make a difference if i swap it? I also didn't do the standard charge at the start. Couldn't resist playing with it. So It was on charge while playing with it. Could that make a difference?
Click to expand...
Click to collapse
If it works otherwise then I doubt there is a fault that would cause the battery to run down but nothing else not to work.
Not charging the battery at the start is one of those things that some say makes a difference, other say it doesn't. With Lithium-Ion batteries I always thought they didn't need that initial charge, but I can't say for sure. Anyway, what might help is if you did a full charge then a complete discharge (use it until the phone turns off) then a full charge again. With older batteries at least, that tended to help them last longer.

There a a few threads on this alread here and on the Android Forums.
There is a problem where the phone when charged left on, only goes upto 98%. However the phone will soon drop to 90% and lower quickly, indicating the phone has not charged properly.
If you unplug and reconnect, it will go back to 100% but almost as quick as tying your laces, it will go from 100 to 98% and continue to drop.
It could be faulty batteries.
I was hoping the FW update would fix but it hasn't as I found out last nite.

Or should I just buy another battery?

I've been having similar issues,
I get much much better battery life without mobile networks on, and alot of application crashes/phone reboots to get it work like I expected.
Took some data:
1hr of phone in sleep mode w/ mobile internet on = 4% battery
1hr of phone in sleep mode w/out mob internet on = >1% battery
So I can get a good two days if I don't have any internet with moderate use, but about 16 hours with internet always on and moderate usage. If I really 'rag' it and use alot, I can get about 50% done in a few hours (not constant use either, just alot of google goggles mainly!)
This coupled with the crashes and reboot made me get an exchange, I'm just hoping it's better, and really hoping its not worse..
Wish me luck, I wish you all the same.

After couple weeks my original battery seems to last longer - I do with 1,5 days now (with some browsing, 3G, occasional GPS and bluetooth, weather & gmail sync, dl apps from market etc). So it might be true that after the initial couple weeks of usage and charging the battery performs much better.
Intrestingly T-Mobile promised to send me a new battery over a week ago. As it never arrived I called them and was told they dont have any... but they would credit my account with £20 to buy one. Today... I received an extra battery from T-Mobile!!! No idea what is going on - and if I still have that £20 credit in my account
I will give that new battery a loooong first charge, see if it helps.

what about the 3000 mAH batteries?
Are they any good and would it work for the Desire?
can be found at the htcdepot.com

jannen said:
After couple weeks my original battery seems to last longer - I do with 1,5 days now (with some browsing, 3G, occasional GPS and bluetooth, weather & gmail sync, dl apps from market etc). So it might be true that after the initial couple weeks of usage and charging the battery performs much better.
Intrestingly T-Mobile promised to send me a new battery over a week ago. As it never arrived I called them and was told they dont have any... but they would credit my account with £20 to buy one. Today... I received an extra battery from T-Mobile!!! No idea what is going on - and if I still have that £20 credit in my account
I will give that new battery a loooong first charge, see if it helps.
Click to expand...
Click to collapse
Won't help, once it's at 100% the charging will stop. There is no such thing as 'long charging' li-ion batteries or 'trickle charge' a li-ion battery.
You can try to do a full first charge (until the green light burns) and then fully discharge (until the phone goes off). Then fully charge again. This will calibrate the battery chip and make sure you see the correct percentage.
If battery life is still no good then it's because you use the phone too much. Read: constant weather updates, friendstream updates, push mail and other stuff that constantly use the mobile connection. Also turn off gps unless you need it.
Turning off those services and turning off the 'always on mobile connection' can double your battery life (read: standby time).
It's not something magical, it's completely normal. If you want the phone to do a lot, it will obviously use a lot of battery.
Just for the sake of it, put the phone in airplane mode. You will be amazed how long it will last.
It's the main problem with modern mobile devices. Battery usage and capacity are no longer in good balance. What we need is more compact batteries that have more capacity.
At the moment it's clearly a comprimise between battery size (thus capacity) and battery usage. It's up to you to see how much you want to comprimise.
And so far, with every HTC phone, after a few (radio rom) updates battery life increased.
And... what everyone seems to forget, when you first get your phone you will fiddle with it.. a lot.. And once you have it for like a week or two, you start using it differently. Usually ending up with better battery life!

Try to run it down to around 5-10% after each full charge, but don't let it go completely dead if you can avoid it. Do this a few times and you will notice an improvement. Plus of course, when the novelty wears off and you use it less the same will happen.
Back when I got my Touch HD it would only just last a day, but by the time I was on the upgrade path I could get 3 or 4 days out of it!

Just to confirm, I was a bit worried at first about the battery life of the Desire. The first 2 days I could only manage to get 7 / 8 hours out of it. When I turned data sync off at night, it still lost 40% of the battery .. doing absolutely nothing.
However as mentioned before, I'm now on day 6 and now I can easily get 36 hours of browsing / texting / calling 2 hours + / even playing occasionally games. At night, without data sync, it drops just 4%.
So if you're worried about your newly acquired Desire's battery sucks, It really needs some calibration. After a few days it'll work as you wish.

T-mob battery
Hmmm.. Not sure what T-mob is up to. They promised me a £20 credit to by a battery (they didnt have any in stock) then I received the battery in post. I called 150 and they confirmed the £20 credit is still there for the next bill...
I couldnt be happier with T-Mob! Besides this I got 100txt/100min, plus 60 min included to Eurasia, Internet and 40 free txt to Europe = all for £10 a month!
Now I just need a case for it... waiting for the PdAir one to come, had one for my Compact IV and loved it. Its the flip one that opens upwards not down, so wont mess with the hardware buttons.

sajcobitsj said:
Just to confirm, I was a bit worried at first about the battery life of the Desire. The first 2 days I could only manage to get 7 / 8 hours out of it. When I turned data sync off at night, it still lost 40% of the battery .. doing absolutely nothing.
However as mentioned before, I'm now on day 6 and now I can easily get 36 hours of browsing / texting / calling 2 hours + / even playing occasionally games. At night, without data sync, it drops just 4%.
So if you're worried about your newly acquired Desire's battery sucks, It really needs some calibration. After a few days it'll work as you wish.
Click to expand...
Click to collapse
I really hope that's the case...
I got my Desire on Tuesday, first use was on Wednesday.
Yesterday (Friday) I put the Desire into Airplane Mode - I deactived everything. Turned off WLAN, mobile Internet, Syncing off manually before I went into that mode, just to be sure. When I went to bed, I had 72% battery left. When I woke up...50%...seriously, what the f...?!?!
8 hours of doing absolutely nothing uses 22% battery?! It's really annoying at the moment, absoluetly unusuable unless I'm home and know I can plug it in any second. When I'm out, I don't even dare to use mobile Internet, because even without it it only lasts till I get home (no WLAN, no mobile internet, just using it as a "telephone"...).

Eggcake said:
I really hope that's the case...
I got my Desire on Tuesday, first use was on Wednesday.
Yesterday (Friday) I put the Desire into Airplane Mode - I deactived everything. Turned off WLAN, mobile Internet, Syncing off manually before I went into that mode, just to be sure. When I went to bed, I had 72% battery left. When I woke up...50%...seriously, what the f...?!?!
8 hours of doing absolutely nothing uses 22% battery?! It's really annoying at the moment, absoluetly unusuable unless I'm home and know I can plug it in any second. When I'm out, I don't even dare to use mobile Internet, because even without it it only lasts till I get home (no WLAN, no mobile internet, just using it as a "telephone"...).
Click to expand...
Click to collapse
You expect the phone to stay turned on without using any power? This isn't a dumb phone, it is running powerful components and 8 hours doing "nothing" is relatively long time and the power usage of keeping those components powered at idle levels is going to add up no matter what. If you can't bear to turn the phone off if you can't control your usage, carry a charger or battery you should have got a dumb phone.

Bear in mind that the full capacity of the battery won't be reached until several charge/discharge cycles have been done, especially when you are using the battery for the first time on a new phone or on a phone with updated firmware. I noticed this while flashing custom ROMs on a previous handset. I'm sure we will also notice improved battery performance when firmware updates become available.

I really hope that's the case...
I got my Desire on Tuesday, first use was on Wednesday.
Yesterday (Friday) I put the Desire into Airplane Mode - I d
Click to expand...
Click to collapse
You expect the phone to stay turned on without using any power? This isn't a dumb phone, it is running powerful components and 8 hours doing "nothing" is relatively long time and the power usage of keeping those components powered at idle levels is going to add up no matter what. If you can't bear to turn the phone off if you can't control your usage, carry a charger or battery you should have got a dumb phone.
Click to expand...
Click to collapse
So you wanna tell me 20% battery loss in 8hrs airplane mode is normal? I hope not.
Sent from my HTC Desire using Tapatalk

[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
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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 -

[Hint] Battery Usage (2 days 30%)

I've always been impressed by the battery life on Defy ever since I owned it. I haven't owned other smartphones before to be able to make a true comparison but using electronic devices for a long time I can tell the battery usage on Defy can be impressive. However, there were times I noticed the battery was drained so quickly.
In my latest watchful examination of battery usage I have achived to use only 30% of the battery for more than two days. Here is a summary of my usage in the past two days;
4 Hours Music Playback (PowerAmp)
30 Mins wireless
About 16 hours airplane mode
No phone calls on my mobile but I did dial a number several times
I have fully charged the mobile on Friday morning and on Sunday morning the battery has 70% charge.
Hint:
As it was stated in user manual it is recommended to charge the phone from mains socket whenever is possible. I can confirm that I've seen battery improvement after recharging the battery by mains socket after several times.
Since I don't have a use for MMS I have renamed the APN server. The same trick can be used to disable data and that saves battery life too if you don't use your phone to push/pull data.
In the past 2 days my network type has been set to 2G only. The automatic setting certainly have dramatic affects on battery.
Before going to bed I put the phone to airplane mode since the reception in my bedroom is very weak and this increases the battery usage.
With simple measures the battery life can be extended (noticeable) more than what you'd expect.
I'm very pleased with the battery usage so far. Nonetheless, I will buy a spare battery as soon as it is available in the UK.
Happy New Year XDA

Yours are the most impressive stats for the battery use. I've set my Defy into saver mode, and the network data to 2G as well (I only use it to sync up with Gmail (plus Calendar and Tasks) and my employer's Exchange email) and get down to 50% after two days of moderate use, which is enough for me not to worry about running out of juice if I'm away from home for a few days. Yes, the Defy can be pretty frugal with battery use.

I ended up having my original Defy swapped because of concerns that the battery wasn't up to scratch and the new one's been brilliant.
I'm in 3G all the time, never put it in airplane mode, and after 62 hours I still have 20% left - that's with me having used it for some calls, texts, web browsing, facebook and a good couple of hours of Angry Birds as well.
Definitely the best smartphone around for battery life IMO.

CSharpHeaven said:
As it was stated in user manual it is recommended to charge the phone from mains socket whenever is possible. I can confirm that I've seen battery improvement after recharging the battery by mains socket after several times.
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Click to collapse
What does mains socket mean? The wall outlet (I am in the US).
If so, how else would you charge? Computer USB?

If its the bit in the wall that the electricity comes from then its the same thing :L and yeah you can charge it from a computer USB but it takes a little bit longer

Step666 said:
I ended up having my original Defy swapped because of concerns that the battery wasn't up to scratch and the new one's been brilliant.
I'm in 3G all the time, never put it in airplane mode, and after 62 hours I still have 20% left - that's with me having used it for some calls, texts, web browsing, facebook and a good couple of hours of Angry Birds as well.
Definitely the best smartphone around for battery life IMO.
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Click to collapse
wow what? i kinda don't believe you lol...

orntar said:
What does mains socket mean? The wall outlet (I am in the US).
If so, how else would you charge? Computer USB?
Click to expand...
Click to collapse
Yes and yes

In a funny way, my last charge lasted so long I actually got annoyed and worried lol
If Motorola Defy's screen size was 4" and it had Froyo ROM already I would have bought two of them just out of excitement.
Happy New Year XDA

Jt612 said:
wow what? i kinda don't believe you lol...
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Click to collapse
Yeah, seriously.
I'm not talking about hours of calls, more like 15 minutes or so. Maybe an hour or two total web browsing and facebook and perhaps an hour on Angry Birds.
Part of the reason it lasted so long was that I just didn't touch the phone on Christmas day at all, so that was 24 hours with basically zero use, which is unusual.
The next charge last more like 2 days, which I think is closer to how I'll be using it normally.

if you put it in air plane mode, and a couple hours later u turn air plane mode off. will u get all of your notifications? like calls,texts and stuff that people sent to u while the phone was in airplane mode

There is true gem on the Market named JuiceDeffender Beta - I used it since my Milestone and it really does what it says it does. All the hints you mentioned already included in the program and are being controlled by it. For example, as soon as you display turns off your network automatically switches to 2G. In paid version you can even adjust processor's speed when needed (underlocking of course, in terms of battery saving) However i am currently on free version and it's enough to make the battery last almost twice as longer.
I had some problems installing it on Defy, but they were all gone as soon as I rooted the phone.

okaban said:
There is true gem on the Market named JuiceDeffender Beta - I used it since my Milestone and it really does what it says it does. All the hints you mentioned already included in the program and are being controlled by it. For example, as soon as you display turns off your network automatically switches to 2G. In paid version you can even adjust processor's speed when needed (underlocking of course, in terms of battery saving) However i am currently on free version and it's enough to make the battery last almost twice as longer.
I had some problems installing it on Defy, but they were all gone as soon as I rooted the phone.
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Click to collapse
How did you get the 3G -> 2G to work? I can not enable that feature, as I am not using a CyanogenMod rom and I can not download/install AOSP helper as it suggests. I am using the beta and UltimateJuice, which I purchased after seeing what features it provided. I'm using the CPU features to do what SetCPU did for me - no need to have two packages with overlapping features installed.
*update*
From the author of JuiceDefender:
In practice the only ROMs known to work are CyanogenMod (any version) and the Nexus One stock ROM..
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Click to collapse