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I recently upgraded to WM6 ROM, "Jwrightmcps Crossbow ROM Update 2.02.02 WWE", and all went well.
But then at 40% battery my phone died... and this is very similar to a problem I used to had in WM5.
Can anyone tell me which WM6 ROM doesnt cause the battery problem?
For the record, I don't think either my phone or PDA is damaged. The last time I had this problem, I went back to the service center (several times I might add), and they replaced everything eventually (both PDA and Battery). Since then it has worked fine (for about 6mths+), until I flashed to the WM6 ROM.
**** man, I hope this has not damaged my device. Out of warranty already.
I had a similar problem and also initially didn't beleive it could be the battery, but guess what -- getting a new battery solved almost all problems I had including the phone dying at 40% or above. So it might be worth a try...
IT"S YOUR BATTERY
Just trust me
the battery 'dies' after like 6 to 12 months. It just goes bad in a week.
Mine went out on like 20%, then a week later on 54%
replacing it fixes it.
mine crashes over 20%.... the battery it's new
I had same problem with battery,then I buy new battery from ebay, and then the battery status was OK it goes from 100- 4% with warning and everything. But the problem was that battery last only a couple of hours, even aftzer a few days nothing change I must have charger with me all the time.
Then I search the forum and found someons solution, that works for me too.
Just charge the battery full take the cable out and put it in again a couple of times so the battery is realy full charged, the put the device in bootloader mode by pressing Power + Light + Reset, which brings up an un-backlit screen with "Serial" at the top, and "v0.XX" at the bottom. And then just put your device somewhere and dont touch it until it died that coul be the all day. Anyway next day I put the charger in and again didnt touc for all day. And my problems are gone, the battery since then last fortwo or three days if I dont use it much.
Hope that will help somebody
Dears,
i used to read about this issue in the forum again and again.....so i desided to wrote this post....everyone was claming the battery is the reason....OK do not belive this.....it is the rom.....i used the wm6 for sometime and i was facing the same problem....and when my carrier started the 3G i had to switch back to wm5.....and now my device never turns off before i get notified that my battery level is too low it about 10% of the battery....so if you do not belive me just do this test....switch back to wm5...i am using now Hilme 3.5 v1.3.1
regards
Mine dies at 35% with wm6 and wm5 and my old battery, but never dies with my new battery.
Use Radio 1.15
My battery life increased by 200% just by upgrading to this radio ROM.
same here
i m also sufrer of same problem. now after this forum i m confused
Here is the simple fact of the matter:
Batteries are EXTREMELY complicated pieces of equipment
They often give false readings because the chemical reaction that creates the electricity is easily affected by heat\age\use\etc. Also, the electronics that measure the temperature are based on the false assumption that the battery drains in a predictable way down to the same level.
Your battery draining quicker\slower and dying when it says it has charge may be because of the ROM. However, this is HIGHLY unlikely. What is most likely the cause is external factors (eg heat, number of programs running, etc) or that the battery has "died" or become unreliable.
Recommendation: Try different batteries, and remember that batteries have a chemical reaction, before posting here
I don't know... I started having problems as well just after a ROM upgrade... but it was an official ROM upgrade. I start thinking this has something to do with the upgrade process, like some setting being "wiped out" during the upgrade and the battery going "out of sync" with the device, reporting the wrong battery level...
But, more likely, this is just a psycological effect, you install the new rom and then start playing a lot with the device to find the improvements, and you begin noticing the problem for the first time!
My relatively new I-mate JasJar also started dying when the battery level reached 40% the day i flashed WM6.
i posted here, trying to explain that it was perfectly alright 2 days back, prior to WM6.. pointless to say, everyone still said it was the battery 100%
well.. i got a new battery.. and it did indeed solve the problem.
but guess what.
i flashed WM5 back, and both batteries work fine there.
not sure what the heck is going on here.. but i'm certain there are two fixes:
- flash WM5 back on.
- get a new battery and stay with WM6
astraman said:
Dears,
i used to read about this issue in the forum again and again.....so i desided to wrote this post....everyone was claming the battery is the reason....OK do not belive this.....it is the rom.....i used the wm6 for sometime and i was facing the same problem....and when my carrier started the 3G i had to switch back to wm5.....and now my device never turns off before i get notified that my battery level is too low it about 10% of the battery....so if you do not belive me just do this test....switch back to wm5...i am using now Hilme 3.5 v1.3.1
regards
Click to expand...
Click to collapse
I used to think like you, but now I beg to differ, my dead battery never usable under any OS.
It used to be always dead at some % starting from as low as 0 (good ones) and increase until now it is permanent dead at 100%. I have all your intermediate voltages before reaching 100%.
If your's still usable than your battery is not complete dead yet or half dead or maybe soon to be dead.
By the way, I am using helmi_c aku3.5 v1.3 (add on version) as compared to v1.3.1 (vanilla version).
One last thing, please do use big bold characters in forum, sounds like shouting. Thanks!
You cannot judge the battery is old or new by just months.
This older version of Universal battery, it counts by number of time charged I think, inserting in USB for a sync and remove would probably counted as 1 charge.
I now do not sync using those working condition battery, I change to my dead battery for sync purpose.
As I sync only contacts, now Dotfred has a tool and now I hardly use sync anymore.
By the way, there is one guy in this same forum start another thread without reading this (closest info) or all other previous threads.
People like this deserved to be flamed, but I didnt.
IMHO WM6 uses and drains the battery different then WM5
My experience is that everyone that has problems with their device dying just switched to WM6. It has nothing to do with the WM6 itself, it's just that WM6 is more 'sensitive' to a low battery output then WM5. So if you switch back to WM5 it looks like it might 'solve' your problem but in the end the battery will die, it'll just take a little bit longer before WM5 appears to have problems.
You'll postpone the problem for a little while but it's not a fix
Just my 2 cents
CWKJ said:
I used to think like you, but now I beg to differ, my dead battery never usable under any OS.
It used to be always dead at some % starting from as low as 0 (good ones) and increase until now it is permanent dead at 100%. I have all your intermediate voltages before reaching 100%.
If your's still usable than your battery is not complete dead yet or half dead or maybe soon to be dead.
By the way, I am using helmi_c aku3.5 v1.3 (add on version) as compared to v1.3.1 (vanilla version).
One last thing, please do use big bold characters in forum, sounds like shouting. Thanks!
Click to expand...
Click to collapse
Mine still working very good at WM5 as i told you.....just let the battery get off and recharge it till full....now mine is working great and keep working until 10% or less
The point is that WM6 treets the battery and power in different way then WM5. First when you upgrade to wm6 and start it first time it assumes that battery is full (the instruction says that you should charge your battery before uploding new ROM). If the battery was not fully charged then you have a problem. WM6 registers the point of current while starting first time and assumes that this level represents the fully charged batteryl. Then it is programmed for consumption of power according to processor cycles, so after such and such time of use of your device it should reach certain level of power. If your battery was not charged full at the start then it will always show false percantage.
The solution is to fully charge the battery (possibly using the way described in some post above) and then reload the ROM once more.
Of cource when you buy a new battery, WM6 registers this (each battery has unic number) and creats new pattern for this battery. That is way it is so importatnt to properly charge the new battery when you load it first time.
Hope this is helpful.
astraman said:
Mine still working very good at WM5 as i told you.....just let the battery get off and recharge it till full....now mine is working great and keep working until 10% or less
Click to expand...
Click to collapse
I have 3 original batteries.
In principle, good battery can goes to perfect 0%.
First battery started half dead (that is phone is dead 30%) after upgrade from WM5 AKU1 to WM5 AKU2 happen to be around 6 months after I start using the phone, I thought it was the problem with WM5 AKU2 ROM. My usage pattern of this battery is that I charge anytime I wish with Power charger and also during sync. This battery is still with me now after 1 year I have encounter the problem. The dead % grow (no change of ROM) until now it is around 100%, that is phone is dead just before it goes to 99%.
Second battery was bought the same time my first battery has problem, 1 year passed. Usage pattern are, never use this battery for sync or short connections to PC USB, never charge my battery until it is 0% (always possible) or less than 5%, never upgrade ROM using this battery. Always charge to LED turns GREEN & always sync & upgrade ROM with the dead stuck at 100% battery. 1 year has gone, the second is still able to reach 0% till now with battery last average 1 to 3 days, normally 2 days & sometimes 4 days depends on usage pattern.
Third battery, claim by vendor that some electronics is modified compared to the those bought last year. Charged this battery, use a few time to check if it is an ok battery, need to do this as I have ever bought brand new dead battery last year. After confirmed it is a good battery, I continue using the second battery and third battery always carry along as backup in case I used up the second battery.
Hope my usage pattern can help some of you to have optimal use of the battery and do not let the manufacturer earn extra money due to the problem in the old version of the battery. Anyway, this original battery will be discontinued soon due to end of life of this product. Guess I will have to look forward of getting imitations when my second & third battery is gone or maybe when my phone is gone too.
Tadeusz said:
The point is that WM6 treets the battery and power in different way then WM5. First when you upgrade to wm6 and start it first time it assumes that battery is full (the instruction says that you should charge your battery before uploding new ROM). If the battery was not fully charged then you have a problem. WM6 registers the point of current while starting first time and assumes that this level represents the fully charged batteryl. Then it is programmed for consumption of power according to processor cycles, so after such and such time of use of your device it should reach certain level of power. If your battery was not charged full at the start then it will always show false percantage.
The solution is to fully charge the battery (possibly using the way described in some post above) and then reload the ROM once more.
Of cource when you buy a new battery, WM6 registers this (each battery has unic number) and creats new pattern for this battery. That is way it is so importatnt to properly charge the new battery when you load it first time.
Hope this is helpful.
Click to expand...
Click to collapse
uhh...not true...
try to flash you phone at 50% charge...when you boot your battery will still be at 50%
astraman said:
Dears,
i used to read about this issue in the forum again and again.....so i desided to wrote this post....everyone was claming the battery is the reason....OK do not belive this.....it is the rom.....i used the wm6 for sometime and i was facing the same problem....and when my carrier started the 3G i had to switch back to wm5.....and now my device never turns off before i get notified that my battery level is too low it about 10% of the battery....so if you do not belive me just do this test....switch back to wm5...i am using now Hilme 3.5 v1.3.1
regards
Click to expand...
Click to collapse
Not so Dears
i have what the american will say as 20/20 and the rst of the world will say as 6\6 corrected vision.
i can read normal 12 pt text pretty well..
and apart from that what you claim is...well NOT TRUE
Hey, i have switched my Stock rom to the Energy rom (.sensity version). Phone was taken from recharger around 6:30 and around 15:30 energy has ended. 9 hours while on stock i could get more than 24. During these 9 hours wifi was turned off and backlight set to nearly minimum. I used 3G for around 3 hours and after that i turned it off using comm manager. Is it normal? How much can you get on energy rom? How can i control what applications are turned on and what applications are using internet connection? Maybe there is kind of gps turned on? And i am not sure if it comes to the email that downloads messages.
bumping the thread
I've had terrible battery life with Energy ROMs for the past year or so. Release after release, his ROM never improved and continued to add new but buggy software. The phone would end up warm even when in standby in my pocket or on my desk. It heats up even after resetting the phone and never interacting with it (ie. no apps are running). 3G and wifi are off and the radio and rilphone.dll match. I don't know what causes the phone to heat up but that heat production means the battery is getting drained.
I have happily ditched Energy in favor of Monfro ROM. The phone is now always at a nice ambient temperature, as it should be.
as above test other roms if you still draining battary life real fst then maybe its time to get a new battary. if thoses roms work fine then switch over to them.
also post in Energy roms thread for help.
I had the same problem with the battery life, but with me it was happening in the night, so one time i woke up in night my phone was extremly hot and it had lost 20% battery since 3 hours before.
By that time i used TAEL Rom, I thought it might be the ROM, so i changed it a few times using Energy and other popular roms, but the problem still accured.
Then i change my radio and the problem was gone.
Could be that you have the same problem, but you have to try different things. It could be the ROM it could be the Radio, or it could be your battery.
I would have to agree with LtGenHartman that changing the radio may help or solve an issue. If you have an unbranded and unlocked version of HTC Touch Pro then i would say to find the appropriate radio and flash it (but keep in mind that you can brick your device rendering it useless).
My device is a branded HTC Touch Pro (aka HTC Fuze from AT&T), and since the device is not unlocked I will brick my device for sure. The battery draining is coming from two areas:
1)WM 6.5 does suck up a little more battery life since there are more processes running in the background of the operating system. Devices that do run WM 6.5 natively may not have this issue since it is optimized to run on that particular device. Also, there maybe a larger capacity battery that a device is using so battery drain is no longer an issue.
2) HTC Sense UI does drain more battery. It is a combo of processes running in the background to run the UI. It is also that there are fancy animation like the weather and transitions. Try eliminating some tabs that you do not use (For me I eliminated Stocks, Twitter and Facebook). It will free up some RAM and it processes will decrease. This may indirectly affect the battery life. Try using the standard Windows Default aka Titanium UI to see if there is a difference.
For the actual battery, try draining the battery completely before giving your device a full, healthy charge before you go to bed. I notice a bit of a difference in my favor since I did that a few days ago. I read this will recalibrate the battery giving a more accurate discharge.
When you are not using the internet on your phone remember to switch off all the data radios (disconnect from the data network, switch off WiFi). I think its ok if your device is finding the 3G network but as long as you are not connected to it, no data is being constantly sent and received so the battery life should increase. Try also switching all your apps that do use the internet to a manual switch rather than auto updating.
Just remember the stock WM 6.1 ROM has less processes, TouchFlo3D has less animations and tabs to use and the ROM was optimized for your device. That is why you will be getting the best battery life results.
These are some tips for you to try out, let us know if this help any. I don't expect a massive increase in battery life but some does help and from my experience does go a long way.
Separate issue: I do notice that the battery reader is not as accurate either. I notice that if i reboot the device the battery meter decreases (for example, if i reboot a device with 65% life i notice after reboot it can go as low as 50%). Wondering why that is?
Hey all
I am loving ICS on my Xoom. However, I have noticed that "Android OS" is taking up tons of battery, with high awake times. I have had it unplugged for about 3 days, and the screen has only been on for like 2 hours. However, "Android OS" is the highest battery eater on the list and has kept the device awake for over 10 hours. Anyone else seeing this? I am having the same problem on my Galaxy Nexus. Thanks for any input.
Have you tried CPU Spy? Mine shows deep sleep when the screen is off. Also screen is the biggest battery user, by far.
Yeah. I used it and it said that it spent 2 hours at 1000mhz (amount of time the screen was on) and 12 hours at 216mhz and 76 hours in deep sleep. That 12 hours is taken by Android OS, and I don't know why. It is killing my battery. Does anyone know why Android OS is staying awake so much?
It is probably apps that are trying to sync. See what you have that might be trying to update/sync.
You also may want to try uninstalling some older applications. I think I read somewhere that some older non-ICS optimized apps can prevent the OS from sleeping.
HuckFinn said:
You also may want to try uninstalling some older applications. I think I read somewhere that some older non-ICS optimized apps can prevent the OS from sleeping.
Click to expand...
Click to collapse
Do you know of any that are especially problematic?
I have 120 apps. Isolating the problem is going to prove to be difficult. Any ideas which ones? This has been happening with my Nexus for 3 weeks now, nobody else is seeing Android OS taking up a lot of awake time?
tysdroid17 said:
Hey all
I am loving ICS on my Xoom. However, I have noticed that "Android OS" is taking up tons of battery, with high awake times. I have had it unplugged for about 3 days, and the screen has only been on for like 2 hours. However, "Android OS" is the highest battery eater on the list and has kept the device awake for over 10 hours. Anyone else seeing this? I am having the same problem on my Galaxy Nexus. Thanks for any input.
Click to expand...
Click to collapse
Just wipe your system clean and reinstall your apps. That will fix all your ICS upgrade issues.
Are you syncing email via activesync? If so, turn it off for a while and check if it makes a difference. This is what makes android os go through the roof for me on the tablet and the phone!
Sent from my GT-I9100 using Tapatalk
tysdroid17 said:
I have 120 apps. Isolating the problem is going to prove to be difficult. Any ideas which ones? This has been happening with my Nexus for 3 weeks now, nobody else is seeing Android OS taking up a lot of awake time?
Click to expand...
Click to collapse
Is that 120 downloaded apps or 120 altogether (including system apps)? Either way, disabling auto-sync and background data before putting your Xoom down could/should help curb the excess battery drain. The only issue with that is certain apps, like Market, won't function without background data enabled but that shouldn't be an issue if you won't be using your Xoom for a while. You could search the forums or Google on how to create scripts to disable/enable background data and auto-sync for you when you put the device to sleep and wake it back up, respectively. Or just search the Market for an app that does that for you.
Do you leave your wireless radios on (wifi, bluetooth, etc.) while not using your Xoom? Setting wifi to disconnect while sleep may also help.
Thank you all for your input, however I think many people do not understand what I am saying...
I understand how to reduce battery drain IN GENERAL, what I am asking is, are people seeing battery drain faster overall on ICS compared to HC? I am, and I think that Android OS is the culprit. Is anyone else experiencing this?
Thanks!
You know, I had the same exact problem when I installed the first fully functional EOS ICS rom for my Verizon Xoom. The Android OS kept draining the hell out of my battery. I went from having about 5 days of battery life to 1 or two tops.
I decided to try a different rom. Since I don't have Mobile Internet, I decided to experiment and installed the Wingray Version of the CM9 ICS Leak(Kang) and I haven't had this issue since.
So I'm not sure what fixed it, was it because I tried a different type of rom, or was it because I downloaded the Wingray version? Not sure, but either way the problem stopped.
Perhaps try a different rom if you're rooted?
I am experience this issue on my Nexus. Try using easy batter saver. It extends my battery life very well.
https://market.android.com/details?...GwsMSwxLDEsImNvbS5lYXN5LmJhdHRlcnkuc2F2ZXIiXQ..
I'm seeing some of the same issues on EoS nightly 49. I'm down to 88 percent with barely any use. 14 hours of up time. Android OS at 3hrs and 27 mins up time.
tysdroid17 said:
I understand how to reduce battery drain IN GENERAL, what I am asking is, are people seeing battery drain faster overall on ICS compared to HC? I am, and I think that Android OS is the culprit. Is anyone else experiencing this?
Click to expand...
Click to collapse
I'm not, if anything ICS is giving me better battery life than HC. Even considering I'm now overclocked and using my Xoom a lot more.
I think a lot of people misinterpret the battery % used though. Just because something is using a higher percent of battery does not mean its sucking your battery down, there will always be something at top of that % list, it doesn't mean there's a problem. It's a relative list. It's entirely possible (and reasonable IMO) to have Android OS at the top of your list if you've used your device for only 2 hours over 3 days! You barely used it, what would you expect to be at the top?
that's a known problem,
Android OS is also taking up a lot in the stats for e.g. the Galaxy S on its ICS port
a related question though:
I'm mainly using my Xoom for ebook reading (PDFs via ezPDF and/or repligo reader) - which ROM in your opinion offers the better battery runtime
Team Eos ICS ROM
or
the Team Tiamat Moray ROM
?
Many thanks in advance !
Android OS battery bug 4.0.3
If your android device has been off for a considerable amount of time, Android os should not be at the top of battery usage list; phone idle would be in that spot under normal situation. However, there is a battery bug in 4.0.3. After installing 4.0.4 on my Gnex it fixed the problem (from my understanding 4.0.4 was only for the Gnex as its a newer device and the Xoom wifi is slowly becoming obsolete). I'm guessing this will be fixed in 4.0.5 that will be released sooner or later... my guess is later with aging devices.
My Wifi only Xoom with Team EOS is getting 4+ days of battery life and my screen is whats taking most of the battery. I am using the latest nightly as well as the latest GAPPs. There is something running on your Tablet that is casing the problem you are having. I am having no probles with ICS at all and having great battery life. Have you tryed using maybe setcpu to setup a screen off profle. I would maybe think about doing a full wipe and starting over with the latest of everything.
My android OS was at the top of my battery usage (74%) even when in sleep mode. I used to get 5-6 days, now I get only 2 at best.
I disabled wireless and the drain goes away, android os goes back down to 2-3%.
Any ideas?
ICS 4.04 Xoom WiFi only.
Thanks
Bruce
tysdroid17 said:
Thank you all for your input, however I think many people do not understand what I am saying...
I understand how to reduce battery drain IN GENERAL, what I am asking is, are people seeing battery drain faster overall on ICS compared to HC? I am, and I think that Android OS is the culprit. Is anyone else experiencing this?
Thanks!
Click to expand...
Click to collapse
mine is draining somewhat fast when i use wireless, but as soon as thats disabled im good to go
Hello,
I know there are some topics like this but they were not clear for me.
Sinds already a really long time i have serious draining problems.
when i look at my battery usage, i see android OS just as high as the consumption of my screen.
I changed to every (ICS) ROM you can imagine, but the problem always comes back.
Is it normall that android OS is using between 20-50% ?
Does everyone have this problem?
Better battery stats says: audio out_3 and alarm manager is causing it.
But i can't really remove them can I?
I noticed the back of my phone is always warm, it just doesn't cool down.
I think one of my apps is causing this drain, but I really don't know how to find it.
Do you have any suggestions?
thank you!
You could try a slimmed down version if something like AOSP then see without installing any apps if the problem still occurs.
As for heat mine is always warn too even undervolted and underclockdd to 972mhz it can get warm.
Sent from my pyramid...
when I still had my MT4G, someone found out that if you delete "Google Backup Transport" that the Android OS would go back to normal along with battery life. Im not sure about the Sensation, but make a backup of the file and try deleting it to see if it helps
AOSP had the same problem, but it could be slightly better.
I will try google backup transport.
i have the same problem with AOSP based roms, i normally get around 7-9 hours from a AOSP rom (even tho i have an extended battery) but im currently using rdejager's miui sense rom (undervolted by -100) and im can normally get around 24-30hours from one charge
I flashed Cyanogenmod (opensensation) and i'm really happy with it. I also formatted sd card. Android OS is working normall for now, but it might come back (usualy does :S)
Also i'm buying an anker battery, so i hope the problem is solved!
Otherwise JB must solve it right?
audio out_3 ? you can uncheck Key tone,or download One Power Guard or It will give you some optimization tips.
Hi all, just got my 11yr old son a ChaCha. He wanted a Blackberry for the keyboard, but managed to persuade him to have the ChaCha. Anyway, it seems to have this infamous dialer bug.From reading throu the forums, am I right in thinking that if I put a custom rom on, it will get rid of the dialer bug? He curently takes it to school, at 100% power, and generally comes home with the phone on around 10-20% power!! He is only allowed to use it at break and lunchtime!! Also, as it's for my kid, I would like it to be as close to stock as possible. Any recommendations? As I already own a customised Desire, I am happy to 'play about'. I have already unlocked the bootloader, and rooted, so that I can use link2sd. Without that he could only install 3 apps on it before it got the low disk space warning!! And as he's only 11, he likes to put a lot of junk on his phone!! Any help would be most appreacited. Thanks.
Like I mentioned here, I don't think that the dialer bug really exists. It's just the battery statistics that are not very clear.
The overall battery performance of the Chacha is very bad, so if you play some games they could drown the battery within an hour. There only thing you could do is rooting the phone and using another ROM. You can win a little with this, but for playing games, Chacha has a very bad battery performance.
Best performance was with CM7 - there my battery live was 1 1/2 days (without playing games), with CM9 now it's less then a day again.
So for better battery performance and keyboard I guess the Motorola Pro is the only phone, or non-Android phones.
I agree. There is no dialer bug. Those are many processes that show as Dialer. I don't mean to offend you, but have you considered that your son is using the phone not just at break and lunchtime? It is hard to resist, especially when it comes to new things. You should test it yourself and see if battery drains that much in that specific time frame.
Regards
Custom ROM would be a good option, but as he's 11, he's probably not old enough to appreciate the faster speed of CM7 or CM9, over his front camera. I'm guessing he'd want his front camera to keep on working lol
But when I was using the stock rom, I just turned my 3G data off whenever I was not using it, and that makes the battery last miles longer
For easyness (lazyness). Create a widget on the homescreen, under Settings and Mobile Internet. And then you'll have a widget you can just tap to turn on and off the mobile data as long as your son can get the hang off turning it off when he's not using it, then that should work a treat
go for CM Roms
IMHO I do believe that there's a dialer bug in stock Chacha, I think it is caused by the dialer's continuous polling of the proximity sensor (this bug has been reported in a lot of htc stock gingerbread phones, the app dx battery helped me confirm this.) Custom ROMs helped me solved this bug but only those that are CM-based (stock-based roms still has the dialer bug). CM7 is very stable and has the best battery life for any Chacha ROM but CM9 just looks so damn good and the battery life is still way better than stock (in stock, I get battery drains even if my phone is just idle, wifi off)
Thanks for the advice guys. I think we will leave it a couple of weeks and see how it goes. May end up putting CM7 on it at some stage, as I have a CM7 based ROM on my desire. He is only allowed to use it between lessons, otherwise it's detention!! He also uses it to listen to music to and from school. And yes, I have notice that the battery goes down rather quickly, when I was setting it up for him.
Well, there sure is a bug in the stock rom that drains it within hours. IMO it's coming from the 3G connection... Sometimes, when my coworkers drive me crazy, I turn off the 3G... I live in a neighbourhood with a bad network connection, this means that it is reconnecting all the time. My battery normally went for about 15 hours, with 3G off it works for over 20 hours. But since I've installed CM9 it stays alive for over 40 hours...
Thread moved
Moved to General as it is clearly no development thread
jotha - forum moderator