yashsingh1/xdaforums huggingface dataset:
[HD2 Android Q&A, Help & Troubleshooting and Genera] Ducalion:
<Quote>Killing tasks automatically immediately after closing them – this apparently makes battery life worse, because when a program is in RAM, it doesn't consume system resources, but when you run it again, it does. Thanks to hastarin for the clarification.<End>

Do not necessaryly agree. A 'program' is a collection of endless conditions and calculations that puts strain on the CPU. Unless a 'freeze program' function is built in to Android to literally freeze a program when its idle in ram the, the program will still continue to consume valueble cpu power just to stay idle albeit at a reduced rate. But having many program in memory in this state can tax the system performance draining the battery.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Life Engineer:
I don't have the file batterystats.bin in data/sytem!!!

Any help?

Edit: In fact i found it with root explorer search however i am enabling view of hidden files and i don't see it!

Does deleting it While in android by root explorer will cause any problem?!
[HD2 Android Q&A, Help & Troubleshooting and Genera] Slampisko:
@Life Engineer: Nope, I deleted it by Droid Explorer's console while having android up and running and nothing bad happened.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Life Engineer:
BTW i don't agree saying that conservative is the best governor; i guess many accept with me; latest tests showed that interactive is the best and it worked for me!

You may consider putting it in the thread
[HD2 Android Q&A, Help & Troubleshooting and Genera] Slampisko:
@Life Governor: I was thinking about that too. Will edit thread.
[HD2 Android Q&A, Help & Troubleshooting and Genera] WCENIGHTCRAWLER:
Question when it comes to draining the battery which side do I drain it on win or Android?
[HD2 Android Q&A, Help & Troubleshooting and Genera] Slampisko:
@WCENIGHTCRAWLER: Android I suppose, as Android needs to know the correct voltage for drained battery.
[HD2 Android Q&A, Help & Troubleshooting and Genera] kinnyfaifai:
I'm unsure on this as well. Maybe I'm a bit behind on all the dev that's happened. But I remember if draining battery in Android, it messes up with the build on the SD card.

Might give this a go tonight and see.
[HD2 Android Q&A, Help & Troubleshooting and Genera] narucii:
Did you use the WM Rom that they recommended?
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
ive completely drained several times, never once had an issue..
[HD2 Android Q&A, Help & Troubleshooting and Genera] kinnyfaifai:
Brilliant! :D I left my charger at work DOH! :mad: So can't recondition till tomorrow! :rolleyes:
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
I thought li-ion battery doesn't need reconditioning?
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
your not conditioning the battery, your conditioning the phone..
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
so, i don't relly beed to install taskiller?
[HD2 Android Q&A, Help & Troubleshooting and Genera] seVIIen:
I use extended battery and battery indicator app show me that with constant usage left = 4h (100% charged ) . Is it normal ? How are yours ?
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
did ya read the first couple posts?

whats your battery voltage when it says 100%?

what do the first couple posts say it shuld be?

no, im not going to tell you right here, its allready been stated

reading comprehension...... just say'n....

.... fyi: on the last charge i went 53hours, granted thats with light useage, but it still had 21% left on a stock battery before i pluged it in ...
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
hi, i reconditioned my phone like your instruction but i only manage to get 4,1 v. what's gone wrong?
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
one of a couple of things,

ether the battery is degradeing and not holding a proper charge ( posable esp if the bat was abused by constantly being on a low state of charge)

corosion on contacts

week charger

pop the batt, make sure contacts are clean etc, fully drain, then fully charge again with it turned off. some times a couple of these cycles will revive a bat... worst case, it cant hurt any thing.
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
but a 0,1 v difference is not a big deal, right?
[HD2 Android Q&A, Help & Troubleshooting and Genera] dtokez:
anyone got an updated link for this prog?
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
bump, for updated info in 2nd post
[HD2 Android Q&A, Help & Troubleshooting and Genera] salonluden:
It's a 2.4% decrease. So for example, if your batter would have lasted 24 hrs you will only get 23.424 hrs... I don't that's such a big deal. But it may be worth it to invest in another battery because they are just sooooo cheap :D (That's what I did).
[HD2 Android Q&A, Help & Troubleshooting and Genera] Slampisko:
It's fixed. No idea what the hell happened :)
[HD2 Android Q&A, Help & Troubleshooting and Genera] clyder:
Hi I did the process for recalibrating the battery:

-fully charged it with phone turned off

-bootted into Android and deleted batterystats.bin via Terminal Emulator

-restarted the phone...

-now draining the battery

now Current widget always shows 80-85mA in standby. Before this it was always arround 4mA.

Is this normal during first battery drain after deleted the stats file or I did something wrong?

I am using Mdeejay FroYo Revolution v. 1.7 with stock battery.
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
this happened to me too. battery drained like crazy and i thought i had made a mistake. but after 1 or 2 charge cycles, it went normal. 5-9 mA in standby.
[HD2 Android Q&A, Help & Troubleshooting and Genera] clyder:
Thanx... I hope that it will be the case here too. Now almost finishing first charge so I will see then.

edit: No change after first charge. Standby still arround 80mA. I will wait for few more cycles before doing fresh install. I wish I backed up batterystat file somewhere...
[HD2 Android Q&A, Help & Troubleshooting and Genera] clyder:
Now it is 4mA again. I noticed that bluetooth was on in WinMo. I switched it off, rebooted into android, and for few minutes it was about 80mA again and then it started to drop. Dont know if bluetooth was the problem, but nice to have my battery back again :) Only hope it will last...
[HD2 Android Q&A, Help & Troubleshooting and Genera] gregzeng:
Seems most people here are new to Smartphones. All smartphones IMO need a charged spare battery for field work use. Photos with flasj quickly drop battery endurance .. when I need a photocopier in a meeting, research, etc.

I DATE each battery, 'cos they last a few years, at the most.

The HTC HD2 battery is SQUARE - making a fast, accurate battery change slow. In the corner of the case & on the battery, I pit a drop of white or florescent "paint".

Since I use many batteries, chargers, etc over the decades - gadgets for each is labelled as such. The "paint" I use is liquid White-out (used by typists, etc), with bright nail polish drop.
[HD2 Android Q&A, Help & Troubleshooting and Genera] jigners:
after install, Reboot twice

when not using Data, turn it off

when not using or not in range of wifi, turn it off

simple as :):):)

not really a big secret is it?;)
[HD2 Android Q&A, Help & Troubleshooting and Genera] Unconn:
"Make sure you boot Android up as fast after running Windows as possible."

Where did we get this information from? I know that hanging around in any OS is going to drain battery, but why would it affect how the battery drains AFTER you have booted into windows? Could you provide some links to this type of discussion?

Great info though. I remember when I could go a work week without charging my phone, but that was back when it was just a phone...

Thanks

Unconnected
[HD2 Android Q&A, Help & Troubleshooting and Genera] Pretorianbg:
I got a question. My standby powe drain is fine (5-6 mA) without wifi, data or sync on. But when i unlock the phone and for example launch Opera or smth like that the power drain jumps to 350-400... and i loose like 1% every 2 mins. Is that normal ? And any suggestions how can i fix it ? Thx

And one more thing:

is it normal than when i charge the battery to 100% it shows 4.19 v and later on, when the battery is at 70% it shows 3.7 v - 3.8 v . So when the battery drops the voltage drops too ?

Using:

Energy rom

radio 2.12.50.2

HyperDroidV1.7

Hastarian 8 old cam
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
^ wow that's exactly the same as me. when browsing or chatting my battery drains that fast too. i also have 4,19v while fully charged. about the voltage drops, that's normal.
[HD2 Android Q&A, Help & Troubleshooting and Genera] mattijs86:
When I monitor my battery drain the results are 3-6 in standby that's similar to a lot of people out here. unfortunately my phone last just 12 hours at the most.

Android-systeem use 33%, standby 23%, wifi 21%, phone inactive 16%, screen 7%.

Does someone knows if this is normal? I did the trick with battery calibrate.
[HD2 Android Q&A, Help & Troubleshooting and Genera] jigners:
here is how i done mine

here is how i had MIUI build and vbn winmo ROm

gave me a better battery life than when i use to have the stock Winmo ROM
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
i think 12 hours is normal if you use it for online, games, etc..
[HD2 Android Q&A, Help & Troubleshooting and Genera] cuspess:
I am following the instruction to recondition my phone for the battery in point 8 and i am still in the process of draining the battery after a full charge.

But I am not too confident with the 4th step where I wait one or two minutes after the phone power down itself and switching it back on to drain the battery completely. I mean it make sense when the phone power down itself first time round when running android. But when I power it up again after the 2 minutes wait, surely the battery remained is not sufficient to power up the phone in WM, then load into android before it power down itself in android again, which is a 2~3 minutes process.

Does it matter if the 2nd power down was done in WM?

Thanks
[HD2 Android Q&A, Help & Troubleshooting and Genera] Slampisko:
@cuspess: No, that shouldn't be a problem.
[HD2 Android Q&A, Help & Troubleshooting and Genera] elvirr:
My tips for saving battery

http://xdaforums.com/showthread.php?t=863046
[HD2 Android Q&A, Help & Troubleshooting and Genera] dan138zig:
after the phone is dead, can i turn it back on while being charged, or wait until it's fully charged?
[HD2 Android Q&A, Help & Troubleshooting and Genera] JanssoN:
Could someone explain to me why my phone already dies at 3.6V? That kinda sucks :mad:

Did a recalibration two times..
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
shut down voltage is kernel dependent. some kernels shut down @ 3.0v, some 3.3, others as high as 3.7....
[HD2 Android Q&A, Help & Troubleshooting and Genera] t1h5ta3:
the reason i recomend the 2nd reboot is it helps the li-io battery's internal cuircuitry .

that and depending on the android kernel being run, it may boot into windows, then run for another 12+ hours...

ie: if android shuts down@ 3.7v, it'll still run on wm down to around 3.0v...
[HD2 Android Q&A, Help & Troubleshooting and Genera] JanssoN:
Oke, thanks mate.. I'll try a third time. If this won't work I'll get another kernel.

Cheers
[HD2 Android Q&A, Help & Troubleshooting and Genera] Unconn:
I keep hearing this. Could you point out a kernel that shuts down at less than 3.6v? I would like to try it.

These kernels must over-ride the hardware shut down voltage. The reason I say this is that my Android HD2 shuts down at 3.6v. I can start it back up into WM and it says there is 1% left. It lasts about a minute and it shuts down (nothing to do with the Android kernel). If I start it back up and go into the boot loader (Holding Volume down) it has nothing to do with Android nor WM and still shuts down at the same voltage.

Again, I would like one of these kernels that over-ride the hardware battery safety circuitry. Please prove or dispel the myth.

-Unc
[HD2 Android Q&A, Help & Troubleshooting and Genera] jirka607:
Normal?

My phone gets MAX 4196 no matter how i try.

and shutdown was at 3100.

is it good or bad the battery is 1year old,.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Unconn:
That sounds great to me. The issue is not the voltage though, but how long it holds the voltage. They will lose capacity over time. It might take 12 hours (maybe 1100ma) to get to 3.1v, but another year from now it may take only 8 hours (maybe only 800ma) to get to 3.1v.
[HD2 Android Q&A, Help & Troubleshooting and Genera] jirka607:
Thanks should i use swype on my CHEAP extended battery from if it now last almost 3 days of usage :) i dont want to destroy it coz i think the values are just fine with it :)

Im now on 37% and i still have 3800mV i think thats too much
[HD2 Android Q&A, Help & Troubleshooting and Genera] Unconn:
Mine phone shuts down at about 3.6v. I think you should use what you want. I get about one day on my stock battery.
[HD2 Android Q&A, Help & Troubleshooting and Genera] shubh.27hd2:
It shows 174 ma...is it fine...
[HD2 Android Q&A, Help & Troubleshooting and Genera] simax:
i think its perfect when phone shuts down at 3,4 minimum, better 3,5+. its healthier for your battery
[HD2 Android Q&A, Help & Troubleshooting and Genera] jirka607:
Im now on 30% with my CHCHEXBA (Cheap Chinesse Extended Battery) and still 3890mV i think thats too much after 2days of full use :D
[HD2 Android Q&A, Help & Troubleshooting and Genera] Mrakes:
i have lower battery consumption with brightness set to 11%, thx
[HD2 Android Q&A, Help & Troubleshooting and Genera] lukedunk:
Bump. The guides I've found for calibrating the battery are all written for SD it seems. The situation seems a bit different with MAGLDR 1.13 and NAND roms.

1 - can't charge with phone off, so it never seems to achieve a higher voltage.

2 - Not sure when to delete batt stats with NAND, or how to get it to rebuild to higher/lower voltage limits.

Has anyone figured this stuff out for NAND?
[HD2 Android Q&A, Help & Troubleshooting and Genera] will3k:
Could someone help with the answer to this, i want to wipe battery stats but can't charge the phone when its off as it automatically switches on when charger is plugged in
[HD2 Android Q&A, Help & Troubleshooting and Genera] koekiemonsterjr:
I'd also like an answer to this if someone could please

Also, is there an app to monitor battery usage of different things. I know that android has one builtin but it's not as technical as i would like. I flashed CMYLXGOs Stock Desire HD(2)[RUU1.84][RAFPIGNA 1.7OC] and I can't make it to the end of the day, on almost no usage. Something is using the battery, but i'm not sure what. Current widget says 2-4mA sometimes and 100+mA others coming out of sleep. I'm not sure how to track it down.
[HD2 Android Q&A, Help & Troubleshooting and Genera] -Grift-:
easy to save ur batt :) just set ur brightness at less then 50% and use setcpu. use the enable notifications in setcpu and set screen off and the frequency and wat u think is not to slow or too fast.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Krazy_Calvin:
Frankly this guide seems strange to me. if you are turning your phone back on to completely kill the battery isnt android creating a new batterystats in the process of turning it on leading it to believe that that reading was the bottom and not the next time you turn it on.
[HD2 Android Q&A, Help & Troubleshooting and Genera] mamram:
Great guide, thanks!
[HD2 Android Q&A, Help & Troubleshooting and Genera] jd691978:
i will have to try some of this out.
[HD2 Android Q&A, Help & Troubleshooting and Genera] dude0316:
Thanks great guide.
[HD2 Android Q&A, Help & Troubleshooting and Genera] luba6ky:
If I combine deleting data/system/batterystats.bin with Battery Calibrator from the market - is it good or bad ???
[HD2 Android Q&A, Help & Troubleshooting and Genera] ryan1990:
Thanks. This helped a lot.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Sitech10:
Thanks , great info
[HD2 Android Q&A, Help & Troubleshooting and Genera] tharche:
Same here, ACA DEC20 version.

Standby current 6~8ma, but when operate it's high to 400ma:(

I think may read and write from SD Card drains more current than NAND.

It's SD Android's most worst thing!
[HD2 Android Q&A, Help & Troubleshooting and Genera] ralfkof119:
What if I don't have a batterystats.bin? I'm using ACA sd rom.

Scratch that... I found it... Sorry, I was looking in the wrong system folder.

I'm reading in "battery life" widget 4100+mV. Is this the voltage reading? So I'm reading 4.1V? Am I correct?
[HD2 Android Q&A, Help & Troubleshooting and Genera] Funnydwarf:
yep you are; a full charged battery however should show 4.201V. For an easy calibration i suggest the app called "BatteryCalibration" so you can check the voltage of the battery and delete the file above with one click.
[HD2 Android Q&A, Help & Troubleshooting and Genera] ralfkof119:
Can I still download and use the SetCPU app mentioned in the guide if my rom already has CyanogenMod settings with Performance tweaks?
[HD2 Android Q&A, Help & Troubleshooting and Genera] Funnydwarf:
in my experience yes, it works. May be rom related though with cyano everything should be ok.
[HD2 Android Q&A, Help & Troubleshooting and Genera] :
Why download another OC'ing app while you already have one with the ROM. All of these apps work fine
[HD2 Android Q&A, Help & Troubleshooting and Genera] Funnydwarf:
I.E. because setCPU include profiles, setting different governors and custom frequencies for incall, battery < 20% or temp > xx degrees could be helpful.
[HD2 Android Q&A, Help & Troubleshooting and Genera] :
Ok, your wish.
[HD2 Android Q&A, Help & Troubleshooting and Genera] dirkjanboon:
isn't the battery LI-ION?

Hi good thread perhaps a dumb question isn't the battery LI-ION then?

because if it isn't than a run flat is advised all the time (run flat = once recharged to 100% do not charge until phone no longer wants to go on , than charge until the green light goes on )

with Li-ION batteries this is not needed since they have no memory effect

my tips for best battery life

-- set brightness as low as possible

-- do not run apps that claim more battery life in fact they make things worse -- use a application to clear trash every thing that is not needed uses space and seektimes go higher with a lot of trash

indeed turn off what you can , gps, wifi, bluetooth all suck hard on the battery
[XPERIA X1 Themes and Apps] feldkiste:
Dear friends,

I have serious troubles with my hardware keyboard,

it's german layout (and a german phone).

Often it doesnt take input until the third or fourth tap on the according

button, while other buttons create a series of letters after just one short press.

So the text often looks like this.

Hlllllo mmmmum,

nee yoou to pckk meee upp afffterrr sclllll.

it has been like that for a while, but seems to get worse over time.

at first only m's and n's did this, now it's impossible to enter passwords or other sensitive texts.

I have been using custom roms for a long time, always using hard reset and t29.

but even the old roms where it once used to work fine suck now.

I restored stock spl and installed ofw via sonyericsson fw update,

slighty better, but still uncomfortable.

I used kaiserinput to get the german layout work properly,

but that is not the problem, since i tested the ofw without installing any extra apps or games.

it seems to be a driver issue of some kind, any experiences with that?

Help much appreciated!

Greetings,

Fk
[XPERIA X1 Themes and Apps] altae:
It's a known issue. If you had used the search function you would have found the answer yourself. You have to disassemble your phone and clean the contacts. Afterwards your keyboard will be just as new.
[XPERIA X1 Themes and Apps] feldkiste:
Hey thanks for the quick reply.

I apologize that i have not searched hard enough,

I could not find it in my attempts.

Would you mind to post the according thread link for me?

I will try now to find it on my own!

I will report back asap then this thread can be closed!

thanks again,

Fk
[XPERIA X1 Themes and Apps] altae:
There you go:

http://xdaforums.com/showthread.php?t=535664

Guess what, found it by searching with the keywords clean + keyboard in Xperia X1 general. Took my about 30 seconds :-)
[XPERIA X1 Themes and Apps] FurQan01:
Daaaamnnn soo freakkingg thank youuuu man

i have this problem also like 4 months XD

but never wanted to search it lol

but my problem is solved i used alcohol to clean it really good

and it just worked :3

thaaankss againn
[HTC Aria Q&A, Help & Troubleshooting] lanoitarus:
The Aria under 2.1 does not support iPhone-compatible headsets that have a in-line volume control. I have no idea why, but there seems to be general agreement that this is the case-- the headphones work but the Mic and controls do not.

However, it looks like the Incredible under 2.1 didn't support it either, but under 2.2, it now seems to work for Mic, center button (play/pause), and headphones.

Does anyone who upgraded to Froyo on the aria have a pair of iphone headphones (or iphone compatible with a volume control) that they could test to see if they work? I don't want to root and upgrade my aria if it doesn't work under 2.2 either (i'll just sell it factory instead).

Any help is GREATLY appreciated. Thanks!:):)
[HTC Aria Q&A, Help & Troubleshooting] ninjajtm:
well i have my aria on cyan 2.2 froyo with iphone heaphones, and my problem with them is i have to answer the phone itself when i get a call instead of just pressing button on headphones but from there on its good, i can talk through the headphones but again have to end call from phone to hang up which sucks when your driving :/
[HTC Aria Q&A, Help & Troubleshooting] pcruz:
Im guessing youre referring to the stock version of 2.2 (HTC Sense) That's really interesting what you've mentioned about the incredible. I started a thread under the accessories section trying to address this as well. Most iphone/ipod headsets seem not to play well with android when it comes to the controls and mic. Anyone running the Gratia rom or the liberated 2.2 rom please weigh in.
[HTC Aria Q&A, Help & Troubleshooting] lanoitarus:
Thanks both of you for the input. Based on this I think ill take my chances upgrading to Liberated 2.2, and i'll report back (probably won't be till early next week).
[HTC Aria Q&A, Help & Troubleshooting] lanoitarus:
Just wanted to let everyone know that I updated to Liberated Froyo, but ye olde microphone still does not work, either with the stock iPhone 3GS headset or with a Klipsch headset designed for iPhone.

Very disappointing, but hopefully I can at least save someone else the effort. This sucker is getting fleabayed; maybe i'll try a samsung next.
[HTC Aria Q&A, Help & Troubleshooting] nrvate:
iphone FTL
[HTC Aria Q&A, Help & Troubleshooting] lanoitarus:
I agree as far as the lock-down philosophy goes, but given that iphone-designed TRRS headsets are very nice and prolific, it would be nice to see android fully support them.
[Vibrant General] jzero88:
So its rumored that Google will be manufacturing their Nexus II through Samsung. It is said the hardware and look are identical to the Vibrant except a few minor physical modifications.

What does this mean to us? Will this mean we will be able to port the Nexus II Roms flawlessly. Giving us updates as soon as they are out for NIi?

This makes me very curious. What are some of your thoughts?
[Vibrant General] icandy75:
I think there is a good chance you will get flamed for posting here. Should have put it in general.
[Vibrant General] Hawkularxda:
This should have been in general.

Samsung said that the rumors are false.

Guess we'll find out in a few days.
[Vibrant General] ^Fs:
It is truly sad that the OP has 162 posts and is still unable to post in the correct section.