yashsingh1/xdaforums huggingface dataset:
[Vibrant General] PaiPiePia:
It is probably done this way to conserve battery life expectancy. I remember reading somewhere that unlike the old nickle based battery, Lithium ions likes to remain stimulated, as it likes to carry active charge and be topped off when ever possible. Oppose to discharging it completely and then recharge the battery. So at 3.7v vs 3.0v, you don't have the battery completely drained so that in long term it doesn't ast at least 2 years like the specification stated (2 years, drops capacity to 80% if battery is well taken care of, ie topped off when ever possible, modest temperature, humidity, etc.)

I am no battery expert just what I though might be the reason.
[Vibrant General] aerohoff:
As stated above, this is done to increase the life of the battery. A LiIon battery can only be power cycled so many times before it looses too much capacity to be used any more. By not fully draining (or fully charging) the battery you are able to get more cycles out of it. Here's more info.

Of course if you figure out how to change the set levels, you will get more time per charge, but you might have to buy a new battery sooner.
[Vibrant General] regP:
I'd be willing to trade increased usage time for battery life span especially seeing as they are so cheap now a days. I'm not a dev or anything but it would seems like the problem is software related not hardware. I've been through 5-6 ROMs all with horrible battery life until installing Macnut R11 and suddenly getting almost double what I was getting before. Changing the battery voltage for better life per charge would be icing on top of the cake though.
[Vibrant General] t1h5ta3:
right, i understand that for optimum longevity they recomend staying between 40-60%.

we currently are well above that, we are in 100-80% range. 3.7v is the nominal voltage and we are useing that for shutdown voltage. so basicly we are draining the surface charge of the battery as it comes off the charger.

think of it another way: a 12v battery in our car, is it realy dead when it drops to 12v? no.... if i recall, 10.2v is considered dead. and most batterys sit at about 14v just after you turn your car off.. ie: just off the charger...

heat is the primary killer of a li-io battery. more so than discharge cycles. ie: constant heat generated durring charge cycle does more damage than the cycle its self.

so if we are currently only useing the 100-80% range, and we were able to unlock the full 100-0% range, our run time would be greatly extended. the typical user probably charges over night, and durring the day if they think there going to need a top off. thats to charge cycles in 1 day.

lets say @ current useage you get 8 hours use, if we were to unlock the full capacity, we could get an easy 24hours of use, therefor kill the need to have a mid day charge cycle. the overall life span would increse not only due to the number of charge cycles, but also the heat cycles.

this would also make it easyer to stay in the optimum 60-40% range (we cant even drop to 60% right now) providing even better battery life....

i can see if samsung had chosen 3.5 or 3.2v for shutdown, those values would have goten awesome life. once again, it seems that samsung engineers just throw stuff at a wall and run with what ever sticks... hmm... the battery says 3.7v, i guess thats when its suposed to be dead?
[Vibrant General] ilaf0106:
Wow this is an interesting thread!

+10000000
[Vibrant General] es7241:
I think a dev should take a look at this , this can be a great breakthrough!
[Vibrant General] stevedrz:
On the vibrant, where is battery percentage calculated? Within the Kernel? Or is solely in hardware? What determines @ what voltage the battery should shutdown?
[Vibrant General] office boy:
From what i can tell battery level is set in "mBatteryLevel" And that is set in the Status.java file. ( hxxp://android.git.kernel.org/?p=platform/packages/apps/Settings.git;a=blob;f=src/com/android/settings/deviceinfo/Status.java )

But there is other stuff going on that i have no idea about...
[Vibrant General] sirslipzalot:
I'd really like something to come of this. Like you guys, I'm sick of not getting a full day out of my battery. Bumping for great success!

Sent from my Samsung Vibrant using the XDA app.
[Vibrant General] Kubernetes:
Hmmm... my phone seems to die at 3.2v. Not sure why yours is shutting off prematurely. Wipe batt stats?
[Vibrant General] boimarc89:
.......i can already hear the *****ing and the menstral cramps from the noobs.. They want 1.6 GHz kernels just to have bragging rights against G2 owners w/ 439565653 hour battery life too. Also the vibrant SAMOLED display brilliance isnt pretty for free, that sucks up most of the batter right there dont believe me, check ur batter stats ureself. u c HTC, Moto dont have a screen like this right now in the point of time for a reason. cant have both, It dont work that way...Just like You cant have a 1700 HP V24 engine and want 55 MPG out of it too...if this is u then thats pure ignorance. Myself personally thinks its basically software headaches from samsung that cause diff problems (bloatware running in background). All the hardware is doing is what its told by the software. If the software says run random apps in background, it does it but at the expense of battery life.
[Vibrant General] t1h5ta3:
what rom/kernel are you running? ive seen 4.2-3.7 on every combo ive used, battery wiped etc. i have evn pulled the battery and done a deep discharge to 3.0v

wow, thank you... ? do you blow every thing out of perportion? nice rant tho....

personaly, i usualy get 12-16 hours with moderate use. so i wouldnt say that i get " poor battery life , esp with the early cut off voltage.
[Vibrant General] Kubernetes:
I'm running Onyx 3.1 with the Voodoo kernel. Currently at 54% at 3.779v

My problem is with the standby drain-- I'm consistently losing 3% per hour even when sleeping. For some reason this ROM spends a lot of time doing VM swaps. Tried lowering minfree thresholds in OLCF, but system is still way too active.
[Vibrant General] sirslipzalot:
Actually, I rather like my 1ghz. I underclock to 600/800 to try to conserve battery where possible and my phone runs just as smooth as it does at 1ghz.

Sure a little OC doesn't hurt, but really what's the point right now? There are no "practical" apps out now that demand more than 500mhz, and you can still do more than enough multi-tasking.

So instead of sounding like a pretenteous asshole, either contribute to the topic or shut the hell up.

Now then, I wanted to ask about the possibility of an extended battery for the Galaxy. Something with more amperage perhaps?

Sent from my Samsung Vibrant using the XDA app.
[Vibrant General] t1h5ta3:
corect me if im wrong, but you shuldnt run one click with vodoo ...
[Vibrant General] regP:
Try the Macnut R11 ROM. I tried all pretty much every ROM out there including Macnut R4 through R10 all draining horribly while in standby. On the release of R11 the other day Eugene said he found the battery problem (or something to that effect) and when I loaded R11 the leak was gone. I haven't seen the phone drop a single percent at any battery level while in standby so far.

I used to lose 5% battery coming off the charger on my 25 minute commute to work every morning with all other ROMs. With R11 I've sat at 100% battery for almost 3 hours. Used to get 4-5 hours total life with moderate/heavy use. Now I'm getting over 7 with pretty heavy use. Battery drains about 1-2% for every 20 minutes the screen is on. Used to drain 1% every 3-4 minutes. At the rate I lose battery now I could last well over 10 hours with moderate use.

This is all with screen brightness at about 30%, SetCPU 100-1000mhz ondemand, locked on WCDMA.

This is why I'm convinced the problem is software related not hardware.
[Vibrant General] t1h5ta3:
corect, theres alot of optomising that can be done to reduce cpu useage. i saw great life on macnut11, but it still shut down on me at 3.7v

id love to hear from people if there seeing shutdown voltages lower than 3.7v. please be sure to post what rom & kernel your running.

it'd also be nice if people would fill out there sig so people knew what your set up is.
[Vibrant General] Hydroshock:
There was a study that talked about the longevity of a battery useful life was reduced more by being left charged full or constantly charged rather than being dropped down.

Setting the shutdown voltage down to 3.2V doesn't seem unreasonable as the point where there are problems are down at the 2.5-2.8v range.

Even if it did reduce useful life, the batteries can be had for $4 a pop on eBay (or if people want to use those ones are test batteries).

I would gladly use these settings if they were available. (Mine is showing 20% currently at 3.715v, /w Obsidian v3 and Voodoo )
[Vibrant General] Kubernetes:
I'm not running the OCLF lagfix, but just using the minfree tool, which lets you set how aggressively Android keeps RAM free.
[Vibrant General] Kubernetes:
It's weird, but different batteries behave differently. My previous one drained down to 3.2v, but the one I'm using now (the stock batt that came with the phone) is down to 2% at 3.6v. Strange.
[Vibrant General] customyota:
Mine's at 3.8V and 36% running TW's Onyx, so it'll probably be about the same as yours. If the shutoff voltage can be changed, I'd def trade a few months of battery life for a few extra hours worth of charge though. It'll probably still last longer than I keep the phone anyway.
[Vibrant General] g1flasher:
That's interesting I'm at 3.755mv with 43% battery

Using onyx r4
[Vibrant General] boimarc89:
Its funny... internet **** talking. Anyway..hopefully there is a extended bat that is the same size ..I might just sell this and get another android phone
[Vibrant General] jzero88:
Wow, not to try and thread jack but 1 - 2 % every 20 minutes. Are you just throwing numbers out there or is this FACT?! If so, I will be going to Macnut right now!!

Also, I would love to see a Dev jump on this!!!
[Vibrant General] regP:
Its a fact. Throwing random numbers out doesnt help anyone. Keep in mind that batteries dont drain linearly though. I'd pay more attention to the total performance rather than how long inbetween % drops. I think whats most important is the fact that it doesnt really lose any power while locked.
[Vibrant General] Tpavey:
I'm at 38% with a voltage of 3801mV. Would be nice to use more of the battery per charge.
[Vibrant General] gokhanmoral:
just to share my personal experience from my htc desire days:

I had one of those crap chinese batteries which cost me less than $5.

I am not sure how the battery voltage is measured on htc desire. it may be measured by the phone or it may be reported by the battery using one of the middle terminals.

anyway.. I rarely had "battery problem" reports on my phone, probably because of the internal circuitry problem of the cheap battery. I noticed that I was unable to read the battery temperature and voltage when that happens and I let it go, I did not reboot the phone until the battery is fully depleted.

It lasted MORE THAN THE STOCK BATTERY and the phone shut down w/o any notification. I think the voltage level went below a level of which the phone could operate. normally the phone was shutting down gracefully and the crap battery was being depleted in half or less time than the stock battery.

so, I guess htc desire reads the voltage from the battery, and if it is the case in galaxy s series shutdown voltage can be set to a lower level either by modifying a kernel or a driver or a lower level closed-source binary (radio rom etc).

I hope somebody who has both programming and hardware skills can figure out a way to lower that 3.7 barrier.
[Vibrant General] office boy:
This is what people have posted and my experience with a bit of testing today. Info so far supports the voltage being weird on this device.. One thing I did notice was that at 2% and 3% the voltage seemed to swing a lot more then it has at other voltages. (Swing as in fall off a cliff)
[Vibrant General] Etrnaly:
I'm running Onyx R4.2 with all the tweaks and Overkill Lagfix enabled. My phone auto shutdown. Turned it back on, and it was sitting at 2%. Got the voltage, and it was about 3.4V. After about a minute, it auto shutdown again can't be turned back on. I'll report my full voltage when I charge it.
[Vibrant General] Etrnaly:
My full voltage was 4.2V.
[Vibrant General] Kubernetes:
Well this is crazy. I'm back on my original stock battery, which a few days ago died at 3.6v. Today? 38% at 3.75v. So it must not be the battery, but I'm wondering why there's so much fluctuation if it's the kernel.
[Vibrant General] t1h5ta3:
i pulled my batt the other night and drained it to 3.0v using an old automotive bulb. i put it in the phone, pluged the charger in, waited for the battery icon then booted... i was able to get it to drain down to 3.4.... im going to repete the cycle a few times.. i wonder if the battery is somehow reporting wierd info to the phone.

on a side note im now ocationaly seeing conflicting data between my battery life wiget and the phones system-battery info. at 1 point there was almost a full volt diferance..?

maybyill oden again to clean syuff up, reflash etc to ensure a fresh start..
[Vibrant General] eugene373:
Mods Done to 3.0V Going to test it out today & Find out what Damage it does :D

Read more: http://eb-productions.proboards.com...board=qathread&thread=46&page=1#ixzz15qB7HVdO
[Vibrant General] eugene373:
Rough Measure show about a 10% increase.. Note: Battery.bin has not been reset & battery was not fully charge either.
[Vibrant General] :
Just wipe battery data
[Vibrant General] t1h5ta3:
wiping battery daya isnt going to corect 2 diferent things getting diferent readings from the same sensor.

i think i have some stuff corupted from doing the ultimate lag fix with all the apps/data in there....

i have a few other minor issues poping up here and there... ive done a bunch of flashing

thank you eugene for confirming my theroy.. ! :D

im betting it winds up being more than 10% in the long run.
[Vibrant General] perern:
3.7v

my Diamond 2 runs out at 3.7v in Android. i am at school from 08:00 to 15:30. and it died at 14:46 today. maybe if you get it working you could help out the XDAndroid guys
[Vibrant General] netherzone:
It can change on power_profiles.xml on framework-res.apk?
[Vibrant General] drago10029:
hey, you need a tester? Im willing message me! Been ROM'ing for several years on several phones so I'm pretty familiar with things. PM if you need me.
[Vibrant General] drago10029:
Curious, Whatever happened with the kernel for this?? lol
[Android Software/Hacking General [Developers Only]] barqers:
:confused:

I have tried EVERYTHING I can read. For one thing, when I try

adb install TouchWizCalendar.apk

-> I get an error that says INSTALL_FAILED_DEXOPT

--> I have 64mb of phone memory, and my phone is rooted...

adb push TouchWizCalendar.apk /system/app

-> Permission Denied

I finally copied the TouchWizCalendar.apk back over along with the odex file to the system/app folder using Root Explorer, but the program isn't in my app drawer, and I can't even access it from my calendar widget on launcher pro.

Any help is appreciated... Thank you :(

EDIT:: I really don't care if it's the TouchWiz calendar that I install or the default stock calendar, I would just like A calendar... Any help is appreciated.. I'm still trying to get it worked....

EDIT::: I just checked logcat and I'm getting an error "Package does not include classes.dex" when trying to install. Anyone know why?
[Android Software/Hacking General [Developers Only]] barqers:
Okay, I figured it out... Sort of.

If anyone else gets this problem you should go to

forum.cyanogenmod.~com/topic/395-cyanogenmod-5-for-nexus-one-kang-central-station-v508-06192010/

Without the ~ before com. I can't post links.

Download Cyanogen's mod, and extract the file, navigate to system/apps and retrieve Calendar.apk and CalendarProvider.apk. Put those on your phone's SD card and install like any regular apk file.

This worked for me. It's not the TouchWizCalendar, but it's A Calendar, that is working atleast...
[Android Software/Hacking General [Developers Only]] rjgonza:
Have you tried moving the apk to the phone and installing from there and capture the log, it might give some useful information
[HD2 Android Q&A, Help & Troubleshooting and Genera] lemonspeakers:
I’ll be blunt. I am from California, USA, however, I use a UK HD2 on T-mobile. I’ve never had the urge to use 3G on my phone; I have wifi everywhere I go. Even if I wanted to, I couldn’t, right?

Anyways, I’ve recently had an urge to try out data on my phone… First, Is it possible via t-zones or web2go? Knowing that I can’t use t-mobile’s 3G (my Leo doesn’t have those frequencies) can I use t-zones or web2go? ?

T-mobile has not been able to catch/record my phone-type on their website. They don’t even know I have a UK HD2.

For all they know, I could be using a DUMB-Phone

. I’ve had my Leo for more than a year now. Haven’t been caught.
[HD2 Android Q&A, Help & Troubleshooting and Genera] Major_Sarcasm:
Just switch the wifi off, lol. Your phone will default to mobile data as long as that's switched on in the options.

Can't help you there.

Caught doing what? You think they give a **** what type of phone you're using? You could use a couple of cans and a piece of string for all they care, as long as you're paying them your monthly blood sacrifice.
[HD2 Android Q&A, Help & Troubleshooting and Genera] anap40:
Do you have Tzones or web2go on a line already? If not, it is very difficult (but not impossible) to get it added b/c it is a grandfathered plan.

If you already have the plan (or get it added) then yes it will work with your phone. You will of course be on 2g which is painfully slow however. I bought my HD2(US version) second hand and have been using it with my Tzones plan since April (running both winmo and android). On my.tmobile.com they still think I am using a dumbphone.
[HD2 Android Q&A, Help & Troubleshooting and Genera] lemonspeakers:
thank you, but my question is: will i be able to use 2G even if i have a UK HD2 under US tmobile????
[HD2 Android Q&A, Help & Troubleshooting and Genera] bates_1974:
I'd imagine so, if you get data enabled they'll enable it, you're paying them they don't care what you're using, however depending on what bands you can use I'm unsure, I have gsm 900 1800 and wcdma I believe (2g 3g and hspda). If you're network works on any of those you're good to go
[HD2 Android Q&A, Help & Troubleshooting and Genera] kazriel:
2G yes

3G no

I don't see why you feel what you are doing is so covert and sneaky. I have a European HD2 and was in the US for a few months this year, bought an AT&T pre-paid sim and used it, simple...why would they care?
[Captivate General] bparkerson04:
I have seen the use of the acronym AOSP used alot in the dev forums. I know this stands for Android Open Source Project, but in what context are these people using the acronym? Are they referring to just stock, vanilla android?
[Captivate General] boborone:
Yes

http://source.android.com/index.html

From a phone on an app
[Hero, G2 Touch Q&A, Help & Troubleshooting] keyboardcowboy:
how can i edit the data that has already been synced with my gmail account, for example if i want to delete some contact, i can do it easily on the phone but when i sync those deleted contacts come back again..how to delete them in the synced data?
[Hero, G2 Touch Q&A, Help & Troubleshooting] leesah:
If a contact is categorized as a 'Google contact', which means its synced, then deleting it from your phone means to delete it in the Google Contact service.

Syncing in this case does not mean to restore a deleted contact, but to delete the contact on every device that is synced to your Google Contact service.

If you keep seeing that contact coming back, then there must be some thing wrong with your settings.
[Hero, G2 Touch Q&A, Help & Troubleshooting] keyboardcowboy:
can u plz explain how to make a contact google contact
[Hero, G2 Touch Q&A, Help & Troubleshooting] leesah:
You should be asked when you are about to create the contact. However for an existing contact, I don't know whether there is a way to do that.
[General Accessories] evilightningod:
I have recently bought a HTC mozart. I recently broke the glass of the touch screen. The touch screen still works and everythings alright except for the glass. Ive seen replacement screens on ebay. Does anyone know how to change the touch screen on the mozart? thx
[General Accessories] Amoreme:
That is not good news, I cracked the screen on my HD2 and I had to send it away to get replaced. With the HD2 it is a tough job as the lcd and the glass are attached and it is difficult to change glass only. I replaced glass and lcd.

Unfortunately I was not much help, but I feel your pain.

Good luck..
[General Accessories] offsitenoc:
Well i have a LCD which is broken by fallen and which bought by ebay but i do't know how to replace it
[General Accessories] kimlo:
Can't find anything on this :(

Would be awesome if someone made a guide of some sort.
[General Accessories] faroutdude:
Im in the middle of changing mine thought i had everything i needed untill i found out that the screen has a glue holding it in. takin ages to sort and i dunno what glue i should get to stick the new one on its annoyin thought it would have been easier than this!!
[General Accessories] kimlo:
If you could make a video of it would be awesome.

really wanna fix my shattered screen :(
[EVO 4G Q&A, Help & Troubleshooting] MoMojo69:
Had miui 10.22 with no problems. Went to CM6 then just recently went to miui 11.12. Email app along with Google voice vanish. Does any one have a fix cause I'm searching all over with out luck. Even tried the miui developers.
[Focus General] wildbilll:
Leaving the Phone in USB Tether mode, it may not charge.

Today my Focus was down to about 20% charge remaining. I hooked it to the computer and it indicated it was charging. I came back a few hours later expecting to see it close to fully charged. It was showing the charge indication, but it was also showing it was almost completely discharged. (The battery icon flips back and forth from the charge icon the the current battery charge icon) I pulled the usb cable and it immediately told me the battery was critically low.

I put the USB cable back in, hooked it to the AC adapter this time and it showed it was again in charge mode.

I opened the diagnostic for the battery, *#2*#, and it showed 4% charge.

I removed the battery and it was not hot. I reinserted the battery and in the past few hours I am showing 67% charge now. I also had left the USB tethering option in there from yesterday, so I set it back to Zune and the phone rebooted for that. The battery is not very warm.

I don't know what to think. It looks like leaving it in USB Tether after i tried that yesterday might have caused it to refuse to take a charge in spite of showing the charge indicator. If anyone else has put theirs in USB Tether and not switched it back to Zune afterwards, I would like to know if it will really charge being left in that USB Tether mode.
[Focus General] foxbat121:
Not odd at all. In the past, Samsung WM phones are known to disable charging when in USB modem mode.
[Touch2 General] akman21:
ben rom yükledim bilgisayardan sorunsuzca fakat benim HTC Mega: Touch2 fakat telefon açılırken windows yazısı kısmında donuyor.

I have computer trouble, but I've installed the HTC rom Mega: Touch2 but the phone freezes when opening windows at the entry
[Touch2 General] atila.germen:
aşağıdaki gibi yaparsan bootloader modda açabilisin, makineyi ancak böyle kurtarırsın:)

push the volume down+talk end button, same time...tricolor screen, you r in bootloader mode then connect the pc with activesync and setup the new rom.:)
[Touch2 General] akman21:
çok sağol teşekkür ederim
[Touch2 General] Mr. Clown:
Can you please provide an english translation?.

Also, moved to general as not rom development.