Battery drain tweak? May solve drain :)!

[mkara]

I was using for a long time the rom from QTek with version 2.18. The reason that I sticked so long to this rom is because its efficiency with the battery. As soon I updated to a newer AKU rom I experienced the same problem, in standby it drains much more battery than this QTek rom. Normal a night it costs about 1%, with the newer roms is dropped as soon as 20%. I searched for a reason and finally I found it. I removed the SD card and I saw the problem solved. So there must be something with the SD Card. I searched in the registery and found that the power management function for the SD Card driver is disabled. This means the sd card is always enabled and at full function (= full power).

If you like to enable the power management function of this driver change this key in the registery

HKLM/Drivers/SDCARD/ClientDrivers/Class/SDMemory_Class/DisablePowerManagement change this value to 0. And try then.

I use now WM6 and changed this value, now it is using less battery than the qtek rom.

Without this setting I was able to user Crossbow and newer AKU roms for MAX 48 hours. Normal (and now) it is 4 ~ 5 days or even more if I keep it more standby

Please tell me if this also works for you.

[pharz]

After installing the aku 3.x rom I noticed an amazing increase in battery drainage.
Checked and set the parameter as you said which did the trick.
Thanks for sharing! you really helped me out here.

[j3d1n4s7y]

Well done mkara!

I, as many others, have experienced greater battery drain with the newer ROM's as of late. I'm not sure if this is what the difference was per se...but regardless...this really has helped with battery efficiency.

Fantastic find here.

[umirza85]

Does anybody know what enabling power management does?

[dcdivenut]

I was using for a long time the rom from QTek with version 2.18. The reason that I sticked so long to this rom is because its efficiency with the battery. As soon I updated to a newer AKU rom I experienced the same problem, in standby it drains much more battery than this QTek rom. Normal a night it costs about 1%, with the newer roms is dropped as soon as 20%. I searched for a reason and finally I found it. I removed the SD card and I saw the problem solved. So there must be something with the SD Card. I searched in the registery and found that the power management function for the SD Card driver is disabled. This means the sd card is always enabled and at full function (= full power).

If you like to enable the power management function of this driver change this key in the registery

HKLM/Drivers/SDCARD/ClientDrivers/Class/SDMemory_Class/DisablePowerManagement change this value to 0. And try then.

I use now WM6 and changed this value, now it is using less battery than the qtek rom.

Without this setting I was able to user Crossbow and newer AKU roms for MAX 48 hours. Normal (and now) it is 4 ~ 5 days or even more if I keep it more standby

Please tell me if this also works for you.

I just tried it this AM and while it is too soon to really tell, it does seem to be making a difference but I would like to know if all it does is enable full access to the SD card, and exactly how it does this. I don't run programs off the card so that isn't a potential side effect but I wonder if it could be.

[mkara]

The powermanagement means that the driver can disable the SD card.

This is normally done when the device is in standby mode, the SD card is also shutdown.

Only what I can think what happens is that if you get the device back from standby that the sd card is not DIRECT accesible (but after a few ms).

It should not be a big deal :)

Power management is normally done on Wifi, LCD, CPU and many things.
WiFi is completely shutdown on standby because is not needed. LCD same thing. CPU is running on low frequency.

I didn't experience any problems. It is the same behaviour with the older 2.xx roms. If you used this roms and had no problem this should be work perfect.

My battery is now absolutely perfect running with this enabled. Even better than WM5

[endiz]

I noticed a big battery drain also. I have applied this workaround, and I will let you know in a few days how it worked out.

Thanks for the find!

[notyourdaddy]

it seems to be better for me with this reg change, but still not to the same battery life i got from AKU2. This morning it was looking really good. 30 minute phone call plus exchange mail and it only dropped to 95%

then all of a sudden it was down to 83% and is now at 68% with only maybe 5-10 minutes of voice calls since. i'll keep experimenting, but the battery life issues still seem to be there for me.

[the-equinoxe]

I was using for a long time the rom from QTek with version 2.18. The reason that I sticked so long to this rom is because its efficiency with the battery. As soon I updated to a newer AKU rom I experienced the same problem, in standby it drains much more battery than this QTek rom. Normal a night it costs about 1%, with the newer roms is dropped as soon as 20%. I searched for a reason and finally I found it. I removed the SD card and I saw the problem solved. So there must be something with the SD Card. I searched in the registery and found that the power management function for the SD Card driver is disabled. This means the sd card is always enabled and at full function (= full power).

If you like to enable the power management function of this driver change this key in the registery

HKLM/Drivers/SDCARD/ClientDrivers/Class/SDMemory_Class/DisablePowerManagement change this value to 0. And try then.

I use now WM6 and changed this value, now it is using less battery than the qtek rom.

Without this setting I was able to user Crossbow and newer AKU roms for MAX 48 hours. Normal (and now) it is 4 ~ 5 days or even more if I keep it more standby

Please tell me if this also works for you.


NICE !!!

I have made a cab to do it.

[matthijst]

Hope this solves the problem...

[Malik05]

majority of my programs are installed on the SDcard, how would this effect it? will it take a while for me to load my programs?

[cyberdrakula]

Well been a full day(workwise) when my device is used the most and this registry change has helped.

Thanks!
.

[Ranger666]

I just applied it to a full battery.....here's to hoping it works.....will let you guys know.

[siddharthasaha]

I was also plagued by this issue. Made the changes - will let you guys know if this helps too.

[ADB100]

I made this change yesterday and this moring woke up at 7:30 to 85% battery :( An hour later it is down to 82% and all I did each time was switch the device on to see the clock (and battery status obviously). This is similar behaviour to when I had the 2.47 & 2.61 Radio ROMs installed, looks like I'll revert the registry setting back and see if it 'cures' itself :confused:

Andy

[mkara]

I made this change yesterday and this moring woke up at 7:30 to 85% battery :( An hour later it is down to 82% and all I did each time was switch the device on to see the clock (and battery status obviously). This is similar behaviour to when I had the 2.47 & 2.61 Radio ROMs installed, looks like I'll revert the registry setting back and see if it 'cures' itself :confused:

Andy

Hmm strange, with me it helps. Also with the Radio 2.61 rom (But I don't suspect the Radio rom). If you use batterystatus don't use the extra indicators (that update with a interval). I THINK (not sure) these indicators don't let the CPU go to standby.

I'm sure you've tried correctly this setting but you have to restart your mobile after this setting.... (After changing let the device flush the registry, about 5 a 15 sec in standby, and then soft reset).

If you want to be sure that it not the SD card, remove it if you go to sleep....

[cachookaman]

i tried this and after 12 hours with barely any use my battery was down to 59% :confused:

[ADB100]

Hmm strange, with me it helps. Also with the Radio 2.61 rom (But I don't suspect the Radio rom). If you use batterystatus don't use the extra indicators (that update with a interval). I THINK (not sure) these indicators don't let the CPU go to standby.

I'm sure you've tried correctly this setting but you have to restart your mobile after this setting.... (After changing let the device flush the registry, about 5 a 15 sec in standby, and then soft reset).

If you want to be sure that it not the SD card, remove it if you go to sleep....

Reverted the registry change and this morning woke up to 98% battery :confused:

I think I'll leave it at the default of 1 for the time being until some more information becomes available.

Andy

[mkara]

Reverted the registry change and this morning woke up to 98% battery :confused:

I think I'll leave it at the default of 1 for the time being until some more information becomes available.

Andy

Hi Andy,

Very Very strange indeed. I also recommend you to leave it in default setting. I use a G3 (maybe here are also differences?). I must say that I didn't test this on Faria's 3.3.0 rom because for me it is very unstable and WiFi is impossible for me on this rom. (I also don't understand it, but there are differences in the phones I think).

For me it worked on Crossbow. But it seems you don't have this problem? If you wake up and battery dropped only 2% it's nothing!. For me it dropped 20~30% just for a night standby

[I Got Served]

i made the change last night, fully charged and woke up to a DEAD PHONE

as in it wouldn't even turn on! (even though it was a full charge)

I had to pull the battery out, wait 5 minutes, put it back in, and it finally booted to 100%. i thought i lost my phone

[renek]

In my case, this also hasn't helped very much, my phone now lasts about 14 hours...

[notyourdaddy]

i had to roll this reg change back. it actually seemed to make the battery life worse

[mkara]

Hmm strange, for the people that it doesn't work. What kind of phone are you using (G3 / G4). And which roms... Maybe there is a link...

Maybe there is also a link on what kind of SD card you use? I use a sandisk 512mb SD-Card...

[andersh]

Hmm strange, for the people that it doesn't work. What kind of phone are you using (G3 / G4). And which roms... Maybe there is a link...

Maybe there is also a link on what kind of SD card you use? I use a sandisk 512mb SD-Card...

G3
Undergound edition WM6
2GB MicroMemory

In addition I have push-email enabled, maybe this also has an effect?

Applied the tweak, rebooted and it definitely caused the battery to drain much faster (woke up to 58%).
Reverted and rebooted and things are now back to normal.

[neonkoala]

G3
Undergound edition WM6
2GB MicroMemory

In addition I have push-email enabled, maybe this also has an effect?

Applied the tweak, rebooted and it definitely caused the battery to drain much faster (woke up to 58%).
Reverted and rebooted and things are now back to normal.

Do you save your emails to the external storage card? That might be a cause as it would mean that the CPU has to be woken up to then power on the SD card then check for e-mails then power everything down again. Just a theory though.

[leepriestenator]

This is a neat find. I guess it works best if you don't have too many program dependencies on the Storage Card.

I got my battery upto full charge and disconnected the charger at 00:01 hrs. It's 18:11hrs now and after about 1:45 minutes of talking and about 30 mins of Internet usage I'm at 49% battery. Lets see how long it goes.

Thanks for the tweak. This one needs to go into the WiKi

[esselite]

Thanks for this post, I can say it definitely improved my battery. Yesterday charged till 82% and from about 11.00 PM watched 10min. of movie and checked few times the time. Until now it`s still 82%.

[jumannie]

THis has helped me alot.... THANK YOU!!!!
My MDA is still on the newish side and should last for more than 12 hours

[dwny]

Thanks for the tweak :)
Installed earlier this week and after 3 days of 12hr shifts & 16 hours out of the house...I'm @ 80% battery life. This is after averaging 40 minutes a day talking and just general tinkering with my device.
Before this tweek, after 8 hours of just being turned on...my device showed 30% battery left so I would have to charge during the day and on the way home to be on the safe side.
For me ... this tweak was a huge upgrade and help.
Thanks guys!

[dwny]

G3
Undergound edition WM6
2GB MicroMemory

In addition I have push-email enabled, maybe this also has an effect?

Applied the tweak, rebooted and it definitely caused the battery to drain much faster (woke up to 58%).
Reverted and rebooted and things are now back to normal.

I have push email activated also but my emails are stored on my device & I saw a huge improvement on battery life.
If you're storing your emails on your SD Card, try storing on your device and see what the results are. Ultimately you need to do what works best for you and your device.

[rlsxda]

I've tried the registry change, and removed my SD card...still sucks!
I can't go a full day without charging...

I am using push e-mail, and wonder if thats the big drain...

I know the radio rom was the big drain in WM5...are there diff radio roms for WM6, or can you use the older radio rom's?

[Shawner]

I applied this change last night and when I woke up this morning my battery was about 15% drained. About 5% less drain than before the tweak...will keep an eye on this.

[neonkoala]

I am also having poorer battery life with this tweak. I think it is down to whther the power management feature is built in to the SD card or not. So if you have a mainstream SD card then it will probably work and help but if you have a cheap generic mini-SD card like me then it's unlikely to have a powermanagement feature builtin as thats more production costs.

[ADB100]

I am also having poorer battery life with this tweak. I think it is down to whther the power management feature is built in to the SD card or not. So if you have a mainstream SD card then it will probably work and help but if you have a cheap generic mini-SD card like me then it's unlikely to have a powermanagement feature builtin as thats more production costs.

How can you tell?

[Dr Puttingham]

My device locked up 3 times after this tweak (and it so very seldom locks up), so I went back.

I've been testing these reg tweaks myself for the last two days and I THINK it's helping a little..

http://forum.xda-developers.com/showthread.php?t=287165

Of course the very odd thing is I can look at my device and it says "charging 91 %) so I turn it off and back on and it reports 100% charged so I don't know who to believe ...

[rlsxda]

I've tried the registry change, and removed my SD card...still sucks!
I can't go a full day without charging...

I am using push e-mail, and wonder if thats the big drain...

I know the radio rom was the big drain in WM5...are there diff radio roms for WM6, or can you use the older radio rom's?

Update: I updated to radio 2.47 and it seems much better...we'll see...

[Ranger666]

Well, it has been 4 days and it didn't work for me. The battery is getting drained faster. In about 10 hours, my battery goes down to around 25%.

[mkara]

For the record. I use radio 2.19 with WM6 underground. It helps a lot with me...

Please post if you are using push email and where you store your email. Type of SDCard (brand and size etc).

For some it helps a lot (like me). But there is also told that after you update your phone and have battery drain. Charge your phone full and give a hard reset (back to factory). Then it has to help a little. (With me). And after that i found this and help me a lot

[neonkoala]

Tweak helped: No
ROM: Orwell's WM6
Radio: 2.61
Push E-mail: No
SD: 2gb generic

[jt_armstrong]

Just to tie two similar threads together. This one is worth a read as well before you start messing with the power saving settings.

http://forum.xda-developers.com/showthread.php?t=295191

[nandlal_mk]

Used, but seems its not working
drain is about 34-38% overnight on active standby mode.

[zSpinner]

Tnx for the tip. Works wonders for me (on pdaviet3 and underground).

Another thing; pv3 worked great, then i messed my wi6ard up (again ;) did a hard reset to find my 'z' and 'y' on the slide keyboard switched, along with some other symbols. With the same software and same install 'protocol'!

About un6erground: very happy (:D) with it. (just thought that we agreed a long time ago that dissapearing cabs were annoying :confused: )

[sOid]

Why isn't this a sticky yet? ^^

(or atleast a link in the wiki)

[Dr Puttingham]

Why isn't this a sticky yet? ^^

(or atleast a link in the wiki)Maybe because it's not really the solution. The title of this thread should be changed as the Battery Drain issue has NOT been solved by this reg tweak. It's hard to justify better battery life if my PDA's are locking up :(

Actually, myself and 6 of my clients are reporting better battery life with the other"DisablePowerManagement" keys I posted in this thread http://forum.xda-developers.com/showthread.php?t=295191



Yes it should be posted in the Wiki but it's not deserving of a sticky IMO

(and it should have been posted in the Wizard forum rather than the Upgrading forum... )

[mkara]

Maybe because it's not really the solution. The title of this thread should be changed as the Battery Drain issue has NOT been solved by this reg tweak. It's hard to justify better battery life if my PDA's are locking up :(

Actually, myself and 6 of my clients are reporting better battery life with the other"DisablePowerManagement" keys I posted in this thread http://forum.xda-developers.com/showthread.php?t=295191



Yes it should be posted in the Wiki but it's not deserving of a sticky IMO

(and it should have been posted in the Wizard forum rather than the Upgrading forum... )
I thought it was a fix, it worked for me and a friend of mine. And here the strange it comes. The other power savings do nothing with me :). I think your lock ups is because you use a SD Card that doesn't support power management or something. Or the newer SD Card have build in Power management and the device have to do nothing (I have a relative old SD Card (1 year)).

But how big is your battery drop? Some people are complaining about 3~5% over 1 night. Compared to me it is nothing. I had a drop of 20~25%. So it depends on the hardware (SD Card) I think.

For me it works like a charm so I'm happy. :)

[jwzg]

I guess my problem is that I get a MASSIVE battery drop on WiFi. With the old 2.3 ROM's, I was getting quite a lot of use (maybe 1-2% over 5 minutes), but if I even THINK about turning on WiFi, I'll drop at least 5% in 5 minutes. The other power tweaks along with the SD card tweak worked well. If I could find an answer for this one, I'll be OK.

[Dr Puttingham]

I thought it was a fix, it worked for me and a friend of mine. And here the strange it comes. The other power savings do nothing with me :). I think your lock ups is because you use a SD Card that doesn't support power management or something. Or the newer SD Card have build in Power management and the device have to do nothing (I have a relative old SD Card (1 year)).

But how big is your battery drop? Some people are complaining about 3~5% over 1 night. Compared to me it is nothing. I had a drop of 20~25%. So it depends on the hardware (SD Card) I think.

For me it works like a charm so I'm happy. :)Myself and all my clients' 8125's and MDA are using SansDisk 1GB cards, which are a very good, older card.

Our battery drains are 75% or more during a normal day. None of us use WiFi, just direct push email, phone usage and occasional internet.

There are probably 15 or so devices that I've put the "other" power tweaks on and they've noticed an improvement.

We all have our My Documents, My Pics and Video's, IE cache, IE history, etc on the SC.

I'm glad that this has resolved your issues but I still contend that the title is misleading. Is like saying that all our missed calls and phone button response issues will dissapear by installing the 2.19 GSM, it just isn't true. Which is why I never said that these tweaks will solve the battery drain issue..... YMMV, no?

[Eleven8s]

Excellent - I will try it out... and let you know.

[andyl8u]

I'm running Molski.Biz 3.3 rom and I tried all the stuff that was mention above but it didn't work and it's still draining my battery really fast. But when I hold down the com button to switch to vibrate mode, it stop the battery drain. Now it's normal. I think it could be the speaker might be on all the time or something. Does anyone know how to fix this?

[S.V.I]

So I had the same issue and solved it by doing the following:

Remember Faria's Roms??? Wel those roms didn't work for me because the camera was not working in them. also I found a Wizard/Wing wm6 rom somwhere out here.

anyway, Faria has "Xfaria Settings" in the extended rom as an option in one of the roms. that solved the issue BIGTIME!

All I did is download faria's rom (not sure what verson anymore, sorry you just have to dig)
and instaled anoter rom overtop of it by putting my phone in bootload mode.

The new rom (Something that was stripped from the wing and adapted to MDA) was installed and the extended rom kicked in fixing all of the issues I had with the phone. in fact it runs Perfect.
*NOTE: faria's Network settings in the extended rom are inconsistant with TMO USA. So I didn't let it run during the customizing process. The aplication actualy ask you what carrier you want to set up with! Brilliant, however it didn't work for me.


Another thing you might want to check out is the IPL /SPL 2.26 (if you are using Tmobile) that's what they know is stable on these models. I believe the radio version, and volume settings make a huge difference in batery drain.
ALSO, you might want to know that if the BLUETOOTH FTP is started, it drains batery like I eat M&Ms

made sure I don't download any roms that have extended roms built into the NBK files.

Sorry for the jumbled words. tired.

[taz357]

SVI, do you have thecomplete settings for tmobile mms (advance) or where i can get it?? tmobile site not enough, tmobile cust srv wont spill the beans

[S.V.I]

The Rom you want 6to use if you are a TMO USA customer (With a Tmobile MDA Wizard G3) and not have to reconfigure your phone everytime it fucks up is here:

http://forum.xda-developers.com/showthread.php?t=353237&highlight=TMOUS_MDA_5.2.1622_Wing_Port_V1_4MB_PAGE _POOL

Now with this rom you also need to install FARIA's Settings so that the battery doesnt die within 20min of conversation.

Here is the HARD WAY:

http://forum.xda-developers.com/showthread.php?t=367108

But people have had the same issues where it just doesn't work.
I was able to confugure my MDA' MMS settings, But not on all Roms
Just Got tired of fucking with it so I changed the rom and got Faria's settings.

[Beginner's Luck]

yea that rocks i had the same problem with my 8125 with an aku 2.xx rom. This fixed it <:3)

[S.V.I]

on some roms the HTC power management is not installed. there is a cab file floating around here somewhere. the settings should work then.
I see that it deffinately disables the WiFi when you put it in standby. right on!

[squidrocks]

Hola,

Thanks for the tweaks. I try them out all the time. Seems like, I want to tinker with my Cingular 8125 all the time.

One quick question though -
Can these settings have ill-effects or reverse effects? Can battery drain quicker with these tweaks on? I've the SD card tweak and the communication tweaks enabled.

Here are more details about my PPC-
Cingular 8125
IPL 2.25.0001
SPL 2.25.001
GSM 02.25.11
OS 2.25.11.1
Sandisk miniSD - 2GB

No application running on my SD. Lightly over clocked at 228MHZ using SmartKeys and OMAPClock

Any thoughts?

[thurman]

Hope this solves the problem...


I don
't know or understand how this works?

[Spikos]

Thnx guys !!!

i hope this works

[arp]

This drain problems are very strange!

I have this problem about 1 year and I can't solve! My Wizard drain about 25% over night in stanby mode, no IR beam, no Bluetooth, no wifi, no aplications on memory!
I just tried reg key of SD power mangement, remove SD card, flash many ROM's even Oficial ROM's, change battery, etc... and nothing!
I think this problem starts when I Flash first WM6 ROM...

I can't solve my problem!
Any heplp please?

Thanks

[arp]

Any help???

[mikhalil25]

I am using xda diamond and o2 original rom. Does anyone know how to disable 3G?

[mikhalil25]

my diamond become very hot and the battary is drained very fast...

[mikhalil25]

standby time specified by htc is lie... lets sue them!

[mikhalil25]

[QUOTE=pharz;1140172]After installing the aku 3.x rom I noticed an amazing increase in battery drainage.
Checked and set the parameter as you said which did the trick.
Thanks for sharing! you really helped me out here.[/QUOTE
can anyone tell me where to get this application and whether it works for diamond?

[arp]

Hi again,

I saw that in my case battery problem is when radio is on!
By night with radio on (but WiFi and Bluetouth off) battery down about 25%!
If I disable radio (Flight mode) down about 1%! So, problem is GSM... I think...

Is same problem with all Roms I tested (more than 10)!

What can I do??? Any help???