Database Users

My personal battery killer is..

the micro SD card!
i checked it twice overnight and during the day.. so i can say that for sure!
I own a Samsung micro SD 8gb class 6..
Night 1: lost 35 % in 7 hours with SD in it, constant data connection with hourly updates
Day 1: lost about 54 % in 8 with SD in it, constant data con. , hourly updates, some calls,texts & browsing in Opera
Night 2: same conditions as night 1 but without SD card.. lost 7 %
Day 2: nearly same conditions as day 1 but without SD card.. lost 27 %
Now a question: are sandisk cards better? i really need a new 1 cause my samsung's ****ed up!
Hope i could help someone with this..

Use BsB Tweaker which can enable power saver for SD Card.
And keep in mind that Battery lose first half capacity very fast and then stay on long time on the level 30-40-50.
.

Henry_Lee said:
Use BsB Tweaker which can enable power saver for SD Card.
And keep in mind that Battery lose first half capacity very fast and then stay on long time on the level 30-40-50.
.
Click to expand...
Click to collapse
In my case it's the exact opposite, power loss from 100%-50% is slow, below 50% it can go empty within 7 hours in STANDBY (reproducible). Thanks for the advice with BsB Tweaker.
PS: I have a sandisk 16gb class 2.

you mean the power saving option? it's enanled since the first day..
i know that with the first half but the sd card is really killing me! currently working outside so im in need of the radio.. with sd card in it and running fm radio, battery drainage is about 19 % per hour.. thats not even a bad joke anymore, its realy frustrating!
thank god that i have electricity here

That can't be right. Must be a rogue application. I have a 16 GB card and the phone never loses more than 1-2% (radio off) during the night.

must be my samsung card.. apps are all closed over night!
i got tomtom,navigon,some music & games on my card.. no idea

Formaty sd card and try again.
Must be some application installed on sd or some problem with the sd card itself

Ill try it when im at home!
is there an alternative for the built in fm radio? tried listening without sd.. same result 3 % loss in 10 mins! how can a dumb radio use so much battery?
i remember listening radio with my nokia e90.. listend for hours with minimal battery loss

It makes sense to me, thats why I was saying this here http://forum.xda-developers.com/showpost.php?p=5230146&postcount=10
Any fellows here are using the A-data class 6 16gb and dose not affect the battery life? I'd like to ask this again.
Thanks in advance.

waxfresh said:
is there an alternative for the built in fm radio? tried listening without sd.. same result 3 % loss in 10 mins!
Click to expand...
Click to collapse
I tried mine too, and I lost 4% in 10 minutes, but that was with the screen on. I then turned off the radio and lost 3% in 10 minutes with the screen on, but not doing anything (other than usual-for-my-phone background tasks). I then turned the radio back on and turned the screen off, and it used less than 1% in 10 minutes (I say less than 1% because the indicator had not changed.)
To me, that says that (in my case) the battery killer is the screen, which I can accept because I have it lit very high (I just don't like it dim.)

pedmond said:
That can't be right. Must be a rogue application. I have a 16 GB card and the phone never loses more than 1-2% (radio off) during the night.
Click to expand...
Click to collapse
Please tell me you are talking about the Sandisk 16GB class2

johncmolyneux said:
I tried mine too, and I lost 4% in 10 minutes, but that was with the screen on. I then turned off the radio and lost 3% in 10 minutes with the screen on, but not doing anything (other than usual-for-my-phone background tasks). I then turned the radio back on and turned the screen off, and it used less than 1% in 10 minutes (I say less than 1% because the indicator had not changed.)
To me, that says that (in my case) the battery killer is the screen, which I can accept because I have it lit very high (I just don't like it dim.)
Click to expand...
Click to collapse
screen off,radio on.. still 3% in 10 min.
my screen is on 20 % light .. i also would like to set it to 100% but i dont want the battery to be empty before i can type in the pin

waxfresh said:
screen off,radio on.. still 3% in 10 min.
my screen is on 20 % light .. i also would like to set it to 100% but i dont want the battery to be empty before i can type in the pin
Click to expand...
Click to collapse
The only major thing I'm considering changing, to see if it has any effect, is my windows live config. I currently have my sync frequency set to "as soon as it arrives", which requires a constant data connection (before that starts a flame war, please read this.) I'm gonna turn that off and see if it improves, but I still think the screen is my big problem.

TheGodfather-GF said:
In my case it's the exact opposite, power loss from 100%-50% is slow, below 50% it can go empty within 7 hours in STANDBY (reproducible). Thanks for the advice with BsB Tweaker.
PS: I have a sandisk 16gb class 2.
Click to expand...
Click to collapse
Sounds like you need to recalibrate the "remaining-charge-estimate-circuit-thingy" in your HD2's battery. Drain battery to as near as nothing as possible and fully charge it without unplugging it (I have heard its suggested to do this with the device off). Might work straight off the first time, might take a couple goes.
Do not leave the device below 20% charge for any long period of time as it can cause problems with the Li-Ion battery.

johncmolyneux said:
The only major thing I'm considering changing, to see if it has any effect, is my windows live config. I currently have my sync frequency set to "as soon as it arrives", which requires a constant data connection (before that starts a flame war, please read this.) I'm gonna turn that off and see if it improves, but I still think the screen is my big problem.
Click to expand...
Click to collapse
my live sync is off.. useing gmail with the built in mail app, updateing hourly

waxfresh said:
my live sync is off.. useing gmail with the built in mail app, updateing hourly
Click to expand...
Click to collapse
I'm gonna try it on mine and see if I have any improvement anyway. I'm sure we have different things running on our devices. I'm just trying to narrow things down before removing the SD card to see if that does anything.

SD Card is one of the factor
To my sense, if a lot of softwares in installed in your SD Card, then definitely the battery will deplete rapidly.
I install all 3G-constant-data-softwares in the system memory, not card. Those not required CONSTANT 3G data connection and not to be running 24/7 will be installed in SD card (eg. 1-Calc, TCPMP, Lexisgoo, Resco Explorer).
So far, with the stock ROM and related softwares (installed at "right" locations) gives me average 1 full day battery juice having 25% balance. And again, battery consumption is a very very subjective topic. SD card IS definitely one of the battery earter.

I have not tested the following in a very detailed way but I think it worth while trying it:
Even so I have used the power saving tweak from BsB Tweak I found in sk Tools in tuneup that all Power Saving features are switched off.
So I switched On all Power saving features in sk Tools and I have the feeling that the battery usage is less now.
For example:
From midnight full 100% charge till 8am in the morning I had 89% left which is a little bit more than 1% loss per hour and this is not bad.
But with the new Radio 2.06 I have the feeling that battery power is getting more drained during a talk or during interent connection.
On the other side the reception is quite good and I have also the feeling that data connection is better - receiving data faster after a connection is established.
Again: This are all "soft" fatcs I have not done a sientific evaluation
I have a San Disk 16GByte Class 6 storage card.
Best regards,
dingolino

Hi, are you sure that your micro sd is a sandisk class 6? cuz I've never found Sandisk has released a class 6 16GB microcard..thats why I had to buy the A-data one.
The only software I have installed in the storge card is a GPS software IGO8.
This battery issue is driving me crazy, I begin to miss my HTC HD(original 1.43 ROM) which drops only 2%(My hd2 loses about 40% power) every night, even I always have kept my data connection on.
dingolino said:
I have a San Disk 16GByte Class 6 storage card.
Best regards,
dingolino
Click to expand...
Click to collapse

My personal battery killer is 3G. I have downloaded 100Mb in 5 minutes and have lost around 5% of my battery
Daniel

HTC HD2 Battery drainage?

Hi
Battery problem, keeps draining quickly, just by leaving it anywhere. I charge the htc hd2, after not much use... the battery looses charge? I have s2u2 installed any ideas why this would be?
In other words, battery is on 100%. I open it using s2u2 and close it, just random play aroung with the phone. Next minute you know the battery is going lower and lower in matter of minutes. Thats with no phone calls, few text, no music, no games played i think your getting the gist?
This is wierd? anyone else experience this?
Please can some help and advice in the right direction.
thanks.

Fame123 said:
Hi
Battery problem, keeps draining quickly, just by leaving it anywhere. I charge the htc hd2, after not much use... the battery looses charge? I have s2u2 installed any ideas why this would be?
In other words, battery is on 100%. I open it using s2u2 and close it, just random play aroung with the phone. Next minute you know the battery is going lower and lower in matter of minutes. Thats with no phone calls, few text, no music, no games played i think your getting the gist?
This is wierd? anyone else experience this?
Please can some help and advice in the right direction.u
thanks.
Click to expand...
Click to collapse
Try a search as there is a ton of stuff about how to treat the battery in order to get the most out of it.

hi pa49
I have looked at soo many post on xda, but i cannot get to to the bottom of it?
1. Is there any post you might note of, that could possibly put me in to the right direction?
2. also any place you can get extended battery (not the big fat one lol)

Fame123 said:
Hi
Battery problem, keeps draining quickly, just by leaving it anywhere. I charge the htc hd2, after not much use... the battery looses charge? I have s2u2 installed any ideas why this would be?
In other words, battery is on 100%. I open it using s2u2 and close it, just random play aroung with the phone. Next minute you know the battery is going lower and lower in matter of minutes. Thats with no phone calls, few text, no music, no games played i think your getting the gist?
This is wierd? anyone else experience this?
Please can some help and advice in the right direction.
thanks.
Click to expand...
Click to collapse
you may want to install battclock and check what0s your cpu usage, also disable s2u2, check differences, and whatnot... the only way you can find if it's a software problem or not is by checking with a clean rom.
Usual old boring advice, backup and hard reset, test with nothing installed, if there is the same problem of very high drainage, it's basically a good chance you need to send it back for warranty

I have exactly the same problem. Suddenly yesterday my phone's battery drained and I found my phone switched off, out of nowhere. I charged it for 3-4 hours, and then played some games, the battery was left at 85% and when I woke up today, after 6 hours, it was off again.
So you are suggesting to perform a hard reset and observe the way the battery drains?

Ok, First get the battery working at max capacity by charging it non stop for at least 2 weeks. Whenever you can and wherever you can for as long as you can.
Once you have done that there is a battery monitoring capability built into the charging circuits. You could then allow your battery to drain to cuttoff and then recharge to full again which will accurise the power remaing readout. I never bother with this step as I just use the phone and then recharge as soon as I can again, but, if it's important to you then go ahead, but, don't continually allow the cutoff point to be reached as this will damage the battery.
Now you have maximised the capacity of the battery see how it performs and assess whether you need to take further action.
Installing apps to mem card will eat battery.
Some say leaving apps open will drain the battery. I'm not too sure, but, it's good practice to close them any way.
Finding a clean and pared down cooked ROM will save a lot of power, but, you will have to do your own experimenting there.
After that you could invest in a spare/extended battery, however, I would suggest an external rechargable power pack (Have a look at the juice bar solar pack as it will recharge itself without needing a power socket or USB port (although you can use them!), purely by sunlight. Another advantage is that if you change your phone you still can use the pack with your next device and they will also charge many other devices!
Good luck!

I have my new hd2 leo, and battery seemed to be the main issue for me cause it couldn hold 1working day... but as everybody told its nessesery to charge 1 week to exercise battery for its full potential.. but i did some improvements, did the registry thing with dissablepowersavings dont remmember where found that, and instaled wmpowersaving, for control of 3g 2g data, using 2.12 radio rom, witch is more stable than 2.08 cause i use hd2 for a lot of browsing, and 2.08 was freezing my device.. 2.12 is stable and seems using much less power, i can feel less heat in the back of the case.. tried android... but that was not intterested me... i dont need those 1000ds of apps i need to browse the internet using iris browser.. and now battery easily can hold 2 days with some wifi 3g browsing.. and few phone calls some usage of camera.. witch is poor in dark conditions... so i think battery life is 2days ... and control the 2g 3g networks, turn off location service, turn off data connection.. and the battery for today evening is still 72% after 10 hrs of few phonecalls and a bit browsing with wifi.. some gps navigation i dont even think to buy expanded batery cause i dont like the BACK BIG CASE ... Also i wonder how much power is nessesary to run Micro SD built in card reader... because its a pitty to have 180mb internal memory for progams... if it had 2gb then u install everything in the memory and dont use the sd card reader witch i suppose will save couple of hours of battery.

this issue has been well documented..imo the stock rom battery life is awful lasts up to 24hour on casual use for me..there are cooked roms with better battery life or you could invest in a bigger capacity battery from htc or third party ones on ebay

There is a known issue with the HD2 and microsd cards, when the microsd's filesystem becomes corrupted, causing battery drain.

reijkelhof said:
There is a known issue with the HD2 and microsd cards, when the microsd's filesystem becomes corrupted, causing battery drain.
Click to expand...
Click to collapse
I just popped out my sd card to see if it is going to see how my battery does.
I will post my conclusion tomorrow.
Jeff

innovator8 said:
I just popped out my sd card to see if it is going to see how my battery does.
I will post my conclusion tomorrow.
Jeff
Click to expand...
Click to collapse
Jeff wake up

Jeff? Jeeeeeefffff!!!!

jammerlappen said:
Jeff? Jeeeeeefffff!!!!
Click to expand...
Click to collapse
Oops,
Sorry, I did not really notice any difference with the card out. I am currently trying it again just to be sure.
Jeff

innovator8 said:
Oops,
Sorry, I did not really notice any difference with the card out. I am currently trying it again just to be sure.
Jeff
Click to expand...
Click to collapse
Ok, so I did a quick test, I turned off the radio just to take that out of the equation.
I ran for two hours, first hour with SD card out and then an hour with it in.
From the log, you see that I am about 6 to 7 mA up until 0945 and then it started to cycle, I dont know why, the phone was in standby the whole time.
I put the SD card back in at 1016 and opened explorer just to access it once.
the cycling continued for like 30 min then settled back down to 6 to 9mA.
So, it looks like the currnt is a few mA higher with the SD card in, but I have no idea why the phone was sucking over 150mA in those four to five reading bursts when I was not using the phone.
What do you think?
Jeff

MicroSD preventing idle

MicroSD: Genuine Sandisk 32GB card from a reputable retailer.
ROM: Stock 1.72.831.1 Hong Kong.
I loaded all my music and some games onto the card and found that using Battery Log which I found on here that my phone was going from 100% > 87% overnight with everything off which translates to 16ma idle with Battery Log. With the card on the table overnight that the phone went from 100% > 97% or the same numbers when I put in a 2GB and 16GB cards that I have lying around. I've had the phone for 6 months and these are my consistent figures. With these cards inserted, Battery Log registers approximately 4ma consumption at idle.
I then formatted the 32GB Sandisk card using windows 7 (I'd been using the phone's utility until now) and did a full format at FAT32 with default cluster allocation as a last resort and left it empty without any files whatsoever. Well, Battery Log is still reporting the same 16ma consumption at idle and I'm out of options here so I've come to the masters here at XDA for their thoughts.
I never get any errors from the card, have filled it. The only unusual behaviour is from the idle.

airwater9 said:
MicroSD: Genuine Sandisk 32GB card from a reputable retailer.
ROM: Stock 1.72.831.1 Hong Kong.
I loaded all my music and some games onto the card and found that using Battery Log which I found on here that my phone was going from 100% > 87% overnight with everything off which translates to 16ma idle with Battery Log. With the card on the table overnight that the phone went from 100% > 97% or the same numbers when I put in a 2GB and 16GB cards that I have lying around. I've had the phone for 6 months and these are my consistent figures. With these cards inserted, Battery Log registers approximately 4ma consumption at idle.
I then formatted the 32GB Sandisk card using windows 7 (I'd been using the phone's utility until now) and did a full format at FAT32 with default cluster allocation as a last resort and left it empty without any files whatsoever. Well, Battery Log is still reporting the same 16ma consumption at idle and I'm out of options here so I've come to the masters here at XDA for their thoughts.
I never get any errors from the card, have filled it. The only unusual behaviour is from the idle.
Click to expand...
Click to collapse
plug the phone in overnight???

nrfitchett4 said:
plug the phone in overnight???
Click to expand...
Click to collapse
I want to solve a technical problem for myself and other users about correct idling and memory card problems not just get by on a charger.
My phone used to give me 2 days moderate usage on a single change. With your solution I would get 2 days on standby with zero usage. Or that's 40% drain over 24 hours instead of the previous 10% drain while idling - big difference and reason I want to get to the bottom of it.

airwater9 said:
I want to solve a technical problem for myself and other users about correct idling and memory card problems not just get by on a charger.
My phone used to give me 2 days moderate usage on a single change. With your solution I would get 2 days on standby with zero usage. Or that's 40% drain over 24 hours instead of the previous 10% drain while idling - big difference and reason I want to get to the bottom of it.
Click to expand...
Click to collapse
I don't see it as a problem, it's a known fact that the phone uses more charge when the SD card is in use.

Kalavere said:
I don't see it as a problem, it's a known fact that the phone uses more charge when the SD card is in use.
Click to expand...
Click to collapse
I don't think you've read my post correctly. My post is regarding my new card not allowing the phone to go into idle where previous ones have and yes, it is an issue for me.

airwater9 said:
I don't think you've read my post correctly. My post is regarding my new card not allowing the phone to go into idle where previous ones have and yes, it is an issue for me.
Click to expand...
Click to collapse
Your post states the phone goes into idle, with a higher mA consumption. So it is idling, it's just drawing more current, maybe it's a design flaw of that certain class/size of SanDisk card?

[WP7]Heavy Battery drainage!

full charge 0% after 10h no data or wifi activated! can you confirme ?

nope I had a pretty good battery drain on wp7 even better than winmo 6.5
try to reinstall wp7.
if the problem persists contact the DFD for the problem
and don't forget that this is not a official release from DFD so there are some minor bugs
wait for next releases for a better experience

make sure you have hspl 2.08! good luck!cheers!

thanks guys! i will do a full instal from scratch! i suspect a calibration probleme

installed android then i did a full charge! after that i install wp7! but still have the heavy drain ! what radio version are you using

I charged my phone last night took it off the charger and when i woke it had 10% left :S

projektk said:
full charge 0% after 10h no data or wifi activated! can you confirme ?
Click to expand...
Click to collapse
Yes. I had the same problem in day one.

I haven't done much testing yet, but I was thinking my battery seems to be lasting very good.... at least in standby. 8-10 hours since I took it off charger and it looks like the battery meter only went down about 20%... so there's still 75-80% left! But like I said, I haven't done that much with it today except play around a few times for 5-10 minutes at a time.

No problem for me.the battery life is very good.

maybe its related to sd card class?! can you give your radio rom version?

Last night i fully charged the battery before sleeping
no wifi or Data nothing
today morning 60 percent gone
but day before yesterday i didnt have this problem, i installed few apps recently (attentive phone, htc hub, fb n few games)

Many people are saying that you should flash Radio 2.15.50.14.

nova hands said:
Many people are saying that you should flash Radio 2.15.50.14.
Click to expand...
Click to collapse
my one is having the same radio and im experiencing high battery drain

battery drain fast,, same here.. run out after 10 hours...
if i used android,,usually 30% would left after 10 hours' usage

Have you checked it without SD card? (to see if it's SD card related)
I have pretty good battery drain, too. Radio 2.15, some crappy 512MB SD-card, data and wifi on, mail/facebook/twitter/google sinc on (every 30mins).
Running for ~ 13h, including WP7 installation, testing, all the setups, etc.
Battery went from ~70% (was not fully charged) down to ~20-30%.

okay guys..seriously a stupid question...how do you check the battery drain with percentage??wp7 has no battery percentage..or is there somewhere i cant see it???i am using wp7 with 8gb class 6 and is fine with radio 2.15!i have it for 10 hours and my battery went down to the half from fully charged..!

edangel said:
okay guys..seriously a stupid question...how do you check the battery drain with percentage??wp7 has no battery percentage..or is there somewhere i cant see it???i am using wp7 with 8gb class 6 and is fine with radio 2.15!i have it for 10 hours and my battery went down to the half from fully charged..!
Click to expand...
Click to collapse
you don't (and currently can't, not supported by WP7 API yet afaik) =) you can either estimate by the width of the battery bar, or wait until battery is at 0%.

Can it be that the battery indicator is not reading correctly or that the calibration is incorrect. I had a full battery and one hour later it flashed a low battery message. I booted into Android on the sd and the battery showed 78%.

i had good battery .. when you going to sleep off location and data

Batterylife is OK for me. With push mail ON, some calls, some mails and attachment viewing and 2 market place installs + 2 photos taken I'm at 50% after 12 hrs. It's not grounbreaking but OK. I friend has a HD7 and his unit usually lasts a day. So don't expect miracles from the battery My SD in SanDisk 4GB Class 4.
Yesterday it was GAME OVER after 6 hrs but with at least 200 MB data downloads, over 1 Hrs ot voice calls and constant playing around with the phone.

hd2 battery help ([email protected]!)

FIXED! USE RADIO 2.14
link1
My wifes hd2 is having horrible battery issues on WP7.
Normal use is 5 hours.
zero usage is just about 12 hours.
I have tried 4 different verified working sdcards:
scandisk 2gb class 2
patriot 4gb class 10
Adata 8gb class 6
Kingston 16gb class 2
I have tired 4 different roms:
xboxmod's XBmod (normal and modded), Moon light (none have working gps)
Football's HD2 project (no gps)
DFT's original release (gps actually works)
In all of the roms, location, wifi, bluetooth, find my phone - were all turned off.
email sync was set to 1 hour
I searched the following threads and did their battery tricks:
1
2
3
4
No luck.
Running a tmobile hd2
radio: 2.15.50.14
I also tried:
-without an sdcard (150mb)
- not running htc connection wizard (no mobile data)
- using MY HD2.
as a last resort i swapped batteries and then flashed TyphooN CyanogenMod 2.0 (my main rom). both phones get 40+ hours of normal usage. Today with 8 hours since the last charge and 4 hours of screen time i still have 87% battery left. So its not the phones. My wifes had 95% batter with 6 hours since charge, and 1 hour of screen time.
I would appreciate any help.
thank you.

That's what I can say:
1. Flash Radio 2.12.50.2 - It improves battery life. If you have 3G probs with 2.12.50 (I don't have any but some users reported weaker 3G signal) then try 2.14.50. 2.15 is the worst radio for WP7.
2. Don't panic and recharge as needed for a few days. Apply the battery indicator registry tweak. Somehow WP7 settles with the battery and bat life gets better ovet time. I now get over a full day of usage including 3G on, 2 mail acc syncing every 30 min, about 40-50 min IE browsing, 20-30 min gaming and 20-30 min. calls. That's about the same I got with WM 6.5.

I had terrible battery life also until I applied the registry tweak.
Sent from my HTC HD2 using XDA App

Can u upload Registry tweak for us here .. ??

dr.3rman said:
Can u upload Registry tweak for us here .. ??
Click to expand...
Click to collapse
Number4 in my post above was the registry tweak. I tried it. No difference. Time to flash a radio

raidio 2.12.50.2 has shown no improvements. its been 4 hours after a full charge (no sdcard), everything in settings turned off, and my battery is half full.

the battery tweaks dpnt seem to address the actual charging issues.
Personally i find that after i get a reading of 100% full on the HTC battery tool i can usually see that the amout of charge in teh battery may only be 70%.
Restart the phone and recharge, repeat as nessary. there is something very wrong with the battery driver on this thing

raidio 2.12.50.2 had no improvements. 7 hours and 15 minutes after full charge the phone is dead. Flashing 2.14 after it charges.

Radio 2.12 did not work for me either. I've read 2.14 is the best for battery life. Flashed my HD2 last night with it but haven't tested it yet, I'm on my iPhone now.
Did the registry battery tweak twice but no change at all.
IMO the radio overall is the major reason for battery drain. Turning off 3G will help for sure.
I have location, mail, push notifications, etc. on my iPhone and battery holds 2 days with no problem, regular usage - texts, internet, talk. These services (except 3G) don't have big impact on excessive battery drain.

as i can try to help you, i'm using this tool
http://forum.xda-developers.com/showpost.php?p=11242320&postcount=20
don't know hoe but before i installed it battery goes at about 20% in a normal day use.. When i turn on phone, in about 5 mins, battery goes down.. i saw in registry that the number changes from 11 to 10, in about 5 mins, and the other 5 mins, it changes to 9, so.. it's a big bug
when i install this tool (yesterday ) all works, full battery IS full battery
try.. may can help you as help me
i'm running it on moonlight with registry tweak (didn't se the difference without tweak)

iba21 said:
as i can try to help you, i'm using this tool
http://forum.xda-developers.com/showpost.php?p=11242320&postcount=20
don't know hoe but before i installed it battery goes at about 20% in a normal day use.. When i turn on phone, in about 5 mins, battery goes down.. i saw in registry that the number changes from 11 to 10, in about 5 mins, and the other 5 mins, it changes to 9, so.. it's a big bug
when i install this tool (yesterday ) all works, full battery IS full battery
try.. may can help you as help me
i'm running it on moonlight with registry tweak (didn't se the difference without tweak)
Click to expand...
Click to collapse
The number is supposed to change, 11 being full, 1 being 10%. The trick with the registery tweak is doing it when the battery is completely full, the ROMs with this built in wont make the blindest bit of difference unless the battery is full
The author himself states that it will change by its self.
Ok, let me put this another way.
If you charge your battery to 50% and apply the tweak windows will assume the batter is full, which it isnt, that is why you end up with massive battery drainage because it will still try to appear empty when the battery is empty.
So, your battery will be about 1250mAh, do whatever you have to do to get it full, restart and charge as much as needed, unplug and charge, whatever it takes to get it to 1250 or there abouts, THEN apply the reg tweak, that will set windows to use the correct scale for the battery icon.
What this doesnt unfortunatly fix is that windows will refuse to charge the battery to 100% sometimes for reasons unknown, its more than likely that its a driver issue and since this was never ment for our hardware that makes sence. usually restarting or unpluging and charging can correct this however.

flashed 2.14 no change. trying the battery tool. thank you.

Just one more thing,
SD cards appear to be a massive part of all the dramas people are having with HD2 WP7 including battery usage, I searched all over HTC sites and found that they will only recommend SanDisk SD cards. European HD7 ship with 8GB and US/Asian HD7 ship with 16GB cards.
Maybe you should change?? I switched from Class 2 SanDisk 2GB to Class 4SanDIsk 8GB and have had no problems so far. Had my music player on for the last 12 hours straight.

SD cards from within the same Brands and Models may be different, you cant assume because one person got XYZ to work you will be able to do the same. ive got several Sandisks and a kingston and most of them do not work or work but with serious issues, oddly it was my main card that i was using for WM6.5 and android that worked in the end.
Its worth remembering that we are not supposed to have removable media and im guessing that what ever the cards are in teh HD7 have been made for the jopb and are not just off the shelf. (or at the very least all from the same production line.

HTC Recommended
SD Cards in the HD7 are listed in their tech spec, as "non-removable storage", however, if you search the forums and youtube, you will find the only reason they are "non-removable" is because they've been covered up.
I'm guessing this is because of all the trouble that most HD7 consumers (non XDA members and followers) would have in fixing the issues caused by swapping cards.
Looking back over the SD card threads you will see that yes a lot of cards do work, but the majority are SanDisk 8-16GB Class 4 cards, as recommended (I spoke to them on the phone), and shipped by HTC for the HD7.

I think its important to note, that i am having these issues without an sdcard AND with any sdcard.
The htc battery tool allowed me to see when my battery was fully charged. after everyflash before anything else i do the regedtry edit, and so far nothing has helped.
xda2_haseeb released his Twilight rom where he gets killer battery life. I however do not have the same fortune.

songokussm said:
raidio 2.12.50.2 has shown no improvements. its been 4 hours after a full charge (no sdcard), everything in settings turned off, and my battery is half full.
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Radio 2.12 and 2.15 have the same battery drain.
2.14 worked best for me. Give it a few days.

2.14 is it! after 24 hours of regular usage i am still at 43% battery.
Wifi off, data on, bluetooth off, 3g on, location on, find my phone on, feed back off. email sync across 3 email accounts 30 minutes.
General usage of sms, email, and phone calls.
Using xda2_haseeb Twilightrom

jhono235 said:
I had terrible battery life also until I applied the registry tweak.
Sent from my HTC HD2 using XDA App
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If you are running WP7, where did you get an xda app? Share please

Changing Radio
songokussm said:
2.14 is it! after 24 hours of regular usage i am still at 43% battery.
Wifi off, data on, bluetooth off, 3g on, location on, find my phone on, feed back off. email sync across 3 email accounts 30 minutes.
Using xda2_haseeb Twilightrom
Click to expand...
Click to collapse
I'm running Radio 2.15. Not bad but not 24 hours either, so flashing to 2.14 (which I haven't tried yet) is worth a shot!
If I flash to 2.14 (without using task29), will it erase everything?