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Many people have gone to sedio for more battery life out of the power sucking android phones to attempt to get the most that they can out of their phones, including myself.
Unfortunately, as seen in this thread: droidforums.net/forum/droid-accessories/9569-seidio-2600mah-extended-battery-77.html
extensive research has been put into the issues that the droid(and im assuming other devices)'s firmware was built to estimate battery for the original battery pack, and can not adjust when a larger pack from sedio(ranging between 1700 mah and 2800 mah) is put in.
There are also no apps to correctly read the batteries, with the closest thing to an accurate battery read is battery left which calibrates itself based off of mv and battery life, which is mediocre at best.
I know there are lots of dev's over here that are significantly smarter and better at modifying the system than most over there, and since alldroid is permanently gone as of now, I figured this would be the best resource for help.
Any dev willing to take on the project, there are many people in the listed thread with research in the project, but not the knowledge to fix the firmware, that im sure would not mind paying for an accurate read app.
I know this is an old topic, but there really hasn't been any advances on this and I am getting annoyed by my incorrect battery readings. Battery left does an OK job, but it still goes down to 1% way before it should, even though I have calibrated it over and over again.
What we need is a simple battery app that will let you define at what voltage your battery is at 100%, 90% etc.
As posted on Android Central, a Google engineer has explained exactly what the batterystats.bin file contains:
"This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away."
https://plus.google.com/u/0/1050519...dVxPT#105051985738280261832/posts/FV3LVtdVxPT
http://www.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
So whats the function for?
For us to imagine that i makes a difference?
This is just yet another Internet myth perpetuated by people, allowed to spread on forums and blogs.
It's been known for some time that the battery calibration is done by the power management chip, and the file plays no part.
DaddyCool08 said:
So whats the function for?
For us to imagine that i makes a difference?
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Click to collapse
The option is not from Google. CWM Recovery got it wrong it seems.
Sent from my GT-I9100 using xda premium
tietherope said:
The option is not from Google. CWM Recovery got it wrong it seems.
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Of course i know that its not from G.
Maybe cwm team should take the option away then.
Diannes great to follow on G+. Shes after putting up some really good posts clearing up a few things
On some HTC devices, I believe battery stats are used to load heuristics into the fuel gauge chipset - but not on any Samsungs I am aware of. The fuel gauge on almost all Samsung devices is designed to not require calibration. (It is slightly less accurate and can get "faked out" in some corner cases, such as a reboot on low battery, for this reason - but it will also never go COMPLETELY wacky and will always converge towards truth.)
On some HTC devices, an improperly calibrated battery could cause a false low battery reading that would trigger an early shutdown - the battery wasn't really low but the device thought it was.
Note that the actual battery heuristics file on such devices might be something other than batterystats.bin - As I understand it, CM7 on the Nook Color had battery calibration issues for a while because it had a fuel gauge that DID require battery history info and the info was not being saved correctly.
However, I will say this again: Battery history is not, and cannot, be used in any way to affect the fuel gauge IC used in every Samsung device I have ever worked with.
http://www.maxim-ic.com/datasheet/index.mvp/id/6621 - Good read, that's the fuel gauge used by all first-gen Galaxy S phones. The MAX17042 used in the GSII is not publically documented, but it is similar - it has a few extra features which are not used in our device.
Wipe battery stats has always meant just that to me but many users interpret wiping stats as calibrating a battery .
So over time and from SGS1 days its been misused as wipe battery stats to recalibrate your phones battery .
I still wipe battery stats when i want to reset the readings .
jje
Deleting batterystats.bin just making a display of battery level correct.
I always knew it wont make a difference. Even when people RELIGIOUSLY "RECALIBRATE" the battery, its nothing more than killing the battery prematurely by such UNNECESSARILY DEEP DISCHARGE and CHARGE cycles! Max it can do is to reset the battery meter to hopefully display more accurate info temporarily.
Sergio_O said:
Deleting batterystats.bin just making a display of battery level correct.
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Click to collapse
No.
"It has no impact on the current battery level shown to you." from the OP
Wiping battery stats = Nothing.
Cycling battery = Win.
Wiping battery stats = Nothing
Wiping cache & dalvik cache = win win!
What is the proper way to calibrate the battery then?
Fwuffy86 said:
What is the proper way to calibrate the battery then?
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Click to collapse
Very simple you wipe battery stats if you have problems with the readings and even after flashing a new rom .
Battery calibration you put the battery in the phone and charge it you then use the phone .
This post tells you the battery calibrates itself .
jje
Sergio_O said:
Deleting batterystats.bin just making a display of battery level correct.
Click to expand...
Click to collapse
NO. The post linked to the OP is specifically saying that this is not the case.
Fwuffy86 said:
What is the proper way to calibrate the battery then?
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Click to collapse
Do nothing and wait - On Samsungs, rebooting the device on low battery (<50% or so) can cause it to falsely report low - it will converge towards truth (with the SoC estimate actually increasing over time) over the course of a few hours.
It definitely made a huge difference on my HTC Magic years ago, this was no placebo effect, however, I've never reset battery stats on either the SGS or S2 so can't comment.
tietherope said:
As posted on Android Central, a Google engineer has explained exactly what the batterystats.bin file contains:
"This file is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings.
That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
Deleting it is not going to do anything to make your more device more fantastic and wonderful... well, unless you have some deep hatred for seeing anything shown in the battery usage UI. And anyway, it is reset every time you unplug from power with a relatively full charge (thus why the battery usage UI data resets at that point), so this would be a much easier way to make it go away."
Click to expand...
Click to collapse
maybe , but all the time that i wiped my battery it had positive effect on my battery drain !!!!!
After many different methods,hundreds of post by others. No method of full charge works for everyone. Well I decided to find out from the source, I contacted HTC,Google,Qualicom and Samsung. So first off there,s alot of misinformation about the battery stats bin. What really happens when you wipe battery stats??? NOTHING!!! That's right absolutely nothing. As quoted by all companies I,ve contacted heres the real deal.(batterystats.bin) is used to maintain, across reboot,low level data about your device and operations of apps during charging. Its only used to record things like this app held a wake time of ? Or your screen was using 40% recources for x amount of time. The stats bin actually has nothing at all to do with current or maximum level of charge allowable. So if you do wipe the battery stats bin what happens? The reporting that occurs in the stats bin might be allowed to report faster due to being cleaned. So then how do I get a full charge. Well sorry to say the's no real good way short of constant monitoring of your charge. lets look at what a L'ion battery really does. A lion battery is basically the same as nicad or lead acid.the difference is the amount of charge per cell. Most L'ion battery hold a Max charge of 4.2v +/- 50mV a cell. That being said leaving your battery charging over night not only wastes power but actually oxidizes the cells causing the battery to not fully charge. Our batteries will charge more effectively by not full charging to 100% every time. Getting a good battery monitor widget like the one by 3c is your best friend, when your at 0ma your pretty much done.. So to wrap this up and still give you proper info here we go!!! Screen time out and LCD density drain most of your battery. Using task managers to kill apps actually uses more battery because Android will re open apps as it chooses, there's no need to kill an app unless you know why your doing it android does a great job of resource management. Also remember any mods or tweaks you use might add extra strain on your battery. Multiple launchers,live wallpapers,not backing out of apps properly especially games. The main things to consider when your battery loses charge fast is, does my rom use more resources than stock, do I have to many active apps, do I not know how to properly exit applications. ALL THIS INFO IS FACT AND CAN BE VERIFIED BY A LITTLE RESEARCH ON YOUR PART!
Sent from my A500 using xda premium
Same thing HTC told me.
Sent from my A500 using xda premium
Yes, the wiping battery stats in recovery does NOTHING. Glad to see this reported. I've read much about this on Google+, with actual Google engineers and employees and developers debunking this. It only deletes your phones record of battery use (essentially), i.e. has absolutely zero effect on battery use, only record/reporting.
Sent from my PC36100 using xda premium
While this is correct an SBC kernel will allow your phone to get a higher charge and hold it there while undervolting will lessen the amount of power used therefore giving u better battery life.
While fully charging a battery will potentially lessen the life of a battery, it could take years for a noticeable effect... And in reality, how many people will continue having the evo once their contract is up, and the recent/upcoming lte releases become free with upgrade down the road...
Not to mention letting the phone discharge too low is not great for a battery either...
I concur on battery stats not needing to be wiped...
Nice post overall, and some really good information presented, thank you for sharing.
ca1ne said:
While fully charging a battery will potentially lessen the life of a battery, it could take years for a noticeable effect... And in reality, how many people will continue having the evo once their contract is up, and the recent/upcoming lte releases become free with upgrade down the road...
Not to mention letting the phone discharge too low is not great for a battery either...
I concur on battery stats not needing to be wiped...
Nice post overall, and some really good information presented, thank you for sharing.
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Click to collapse
Yeah I def wanna throw some props your way on the SBC kernels. Thanks a lot,it's been working great so far.
Sent from my A500 using xda premium
PyreKing said:
After many different methods,hundreds of post by others. No method of full charge works for everyone. Well I decided to find out from the source, I contacted HTC,Google,Qualicom and Samsung. So first off there,s alot of misinformation about the battery stats bin. What really happens when you wipe battery stats??? NOTHING!!! That's right absolutely nothing. As quoted by all companies I,ve contacted heres the real deal.(batterystats.bin) is used to maintain, across reboot,low level data about your device and operations of apps during charging. Its only used to record things like this app held a wake time of ? Or your screen was using 40% recources for x amount of time. The stats bin actually has nothing at all to do with current or maximum level of charge allowable. So if you do wipe the battery stats bin what happens? The reporting that occurs in the stats bin might be allowed to report faster due to being cleaned. So then how do I get a full charge. Well sorry to say the's no real good way short of constant monitoring of your charge. lets look at what a L'ion battery really does. A lion battery is basically the same as nicad or lead acid.the difference is the amount of charge per cell. Most L'ion battery hold a Max charge of 4.2v +/- 50mV a cell. That being said leaving your battery charging over night not only wastes power but actually oxidizes the cells causing the battery to not fully charge. Our batteries will charge more effectively by not full charging to 100% every time. Getting a good battery monitor widget like the one by 3c is your best friend, when your at 0ma your pretty much done.. So to wrap this up and still give you proper info here we go!!! Screen time out and LCD density drain most of your battery. Using task managers to kill apps actually uses more battery because Android will re open apps as it chooses, there's no need to kill an app unless you know why your doing it android does a great job of resource management. Also remember any mods or tweaks you use might add extra strain on your battery. Multiple launchers,live wallpapers,not backing out of apps properly especially games. The main things to consider when your battery loses charge fast is, does my rom use more resources than stock, do I have to many active apps, do I not know how to properly exit applications. ALL THIS INFO IS FACT AND CAN BE VERIFIED BY A LITTLE RESEARCH ON YOUR PART!
Sent from my A500 using xda premium
Click to expand...
Click to collapse
Thanks for the information! I wonder how this will be received by those who've been doing this battery stats wiping religiously when flashing ROMs. Interesting to get some information from the SOURCE!
Also, I've always used the sbc kernels, and have had no battery issues (and I let the phone charge all night, every night). I'm sure it'll mess up my battery eventually, but I got my current one free anyway from Sprint (extended one), so oh well. No loss!
PyreKing said:
After many different methods,hundreds of post by others. No method of full charge works for everyone. Well I decided to find out from the source, I contacted HTC,Google,Qualicom and Samsung. So first off there,s alot of misinformation about the battery stats bin. What really happens when you wipe battery stats??? NOTHING!!! That's right absolutely nothing. As quoted by all companies I,ve contacted heres the real deal.(batterystats.bin) is used to maintain, across reboot,low level data about your device and operations of apps during charging. Its only used to record things like this app held a wake time of ? Or your screen was using 40% recources for x amount of time. The stats bin actually has nothing at all to do with current or maximum level of charge allowable. So if you do wipe the battery stats bin what happens? The reporting that occurs in the stats bin might be allowed to report faster due to being cleaned. So then how do I get a full charge. Well sorry to say the's no real good way short of constant monitoring of your charge. lets look at what a L'ion battery really does. A lion battery is basically the same as nicad or lead acid.the difference is the amount of charge per cell. Most L'ion battery hold a Max charge of 4.2v +/- 50mV a cell. That being said leaving your battery charging over night not only wastes power but actually oxidizes the cells causing the battery to not fully charge. Our batteries will charge more effectively by not full charging to 100% every time. Getting a good battery monitor widget like the one by 3c is your best friend, when your at 0ma your pretty much done.. So to wrap this up and still give you proper info here we go!!! Screen time out and LCD density drain most of your battery. Using task managers to kill apps actually uses more battery because Android will re open apps as it chooses, there's no need to kill an app unless you know why your doing it android does a great job of resource management. Also remember any mods or tweaks you use might add extra strain on your battery. Multiple launchers,live wallpapers,not backing out of apps properly especially games. The main things to consider when your battery loses charge fast is, does my rom use more resources than stock, do I have to many active apps, do I not know how to properly exit applications. ALL THIS INFO IS FACT AND CAN BE VERIFIED BY A LITTLE RESEARCH ON YOUR PART!
Sent from my A500 using xda premium
Click to expand...
Click to collapse
This is good info - I can confirm that. Sometimes we advise our customers to wipe out the stats, because this differs from phone to phone. Dell Streak 5 for example, has the .bin file hardcoded somehow to the OEM battery capacity, so the charge indication is not shown properly if the battery is bigger than the OEM (if I'm not mistake). But in general, yes, wiping the .bin file won't increase battery life.
There is a good article on this from Lifehacker on Task Killers. Google "Android Task Killers Explained: What They Do and Why You Shouldn't Use Them"
When changing roms, is it advisable to wipe the battery stats?
I have been heavily using my N7, unplugged, for the past 3 hours and the battery status is still at 100%. I have rebooted 3x to see if the battery status system would reset, but to no avail.
Earlier today my N7 gave me the 14% low charge warning and then jumped to 0% and triggered automatic shutdown during the 30 second walk to get to the charger.
SpareParts is currently showing my battery voltage as 3 mV ... which certainly can't be correct.
It seems to me that my battery is in need of recalibration. I tried searching the issue, but the signal-to-noise is really low due to the previous fad of deleting batterystats.bin (despite it having zero effect).
Is there any way to force an actual recalibration? I also recognize it is within the realm of possibility that my device has a hardware failure; however, I thought I would check for simple remedies first.
Thanks.
If you have root access go onto the Google play store and look up battery calibration...it is the first app
Sent from my Nexus 7 using XDA Premium HD app
Thanks for your reply.
That app is the Android equivalent of a placebo. If you check the store, the description clearly states, "This program does it by removing the batterystats.bin system file."
Unfortunately, that file has nothing to do with battery calibration. That also means that the CWM "wipe battery stats" function does nothing for calibration either.
Da faq then how do u calibrate the battery?
Sent from my Nexus 7 using XDA Premium HD app
Right, this goes back to the low signal to noise ratio. Every FAQ about battery calibration that I have found discusses removing batterystats.bin (either manually or with an app).
As I said before, that has nothing to do with battery calibration.
Therefore, I decided to ask here to see if anyone knows how to *actually* recalibrate the battery.
I had the same issue. Battery stuck at the critial battery " ! " sign the day after I rooted (just FYI, using wugfresh toolkit), and before flashing anything new. So that was pretty weird. I thought it was some kind of hardware failure too, and was about to prise open the back to check the battery. Because even charging didn't help. It said "charging", but was stuck at 0% for ages. I gave it one last shot and this is what I did -
1) used an app to remove the batterystats.bin file (It probably didn't calibrate the battery like you said. Maybe it doesn't improve performance, and this step may be completely useless, but I'm just laying it out how I did it)
2) I turned off the device and charged it from the PC (someone who had a similar issue said he tried this and it worked for him. I don't know if there's any technical basis to it - but I'm no dev and so I thought I'd give it a shot)
3) It charged on the PC for a few hours (device was off throughout). Finally I disconnected and restarted, and it was fine again. Fully charged, and draining as normal.
So that's how it worked for me. Now the funny thing is I flashed a new ROM today (codefirex SR6), and soon after I rebooted I got the same critical battery " ! " warning. And just as I was thinking "oh no, not again" it switched back to 91% which was where I was before flashing the new ROM. I played around with it for a bit, then went back to recovery to flash another kernel. On reboot - back to critical battery warning. This time it didnt switch back to 90% even after a few minutes.
So I am now repeating the 3 steps above and seeing if it works.
Also, after all this, I feel on my device atleast, it so far doesnt lool like a hardware fault (because I fixed it the first time without having to touch the battery or its connections, because I saw the icon change from " ! " to the normal state of 90% battery the first time I flashed codefirex)
It looks like a software bug. But that's just me speculating.The technical aspects are beyond me, and I am going purely by what I saw.
I'll be watching this space carefully!! I really want to know how others have fixed this problem, and/or if it's a widespread issue.
Cheers
Update: So I switched it back on after about 20 minutes - and no change. Still showing battery at charging, 0%
Another interesting thing - I BetterBatteryStats is not reading anything. I set a custome reference to see what's happening, but it shows 0 seconds, no stats etc etc.. even after I refreshed and tried. So it's not able to read whatever it reads to generate those stats.
I've powered down again, and am leaving it to charge for longer. Maybe a couple of hours. So that my 90% battery should definitelt be fully charged by then.
At the moment I don't want to create a new post for this issue, so I'll update with my findings later.
This tirade isn't directed at anyone on this thread, I'm just generally dismayed that this snake oil still perpetuates despite clear and convincing verification that it does nothing...
I can't believe that people still believe in the snake oil that these apps peddle. Battery calibration apps are 100% worthless. You cannot calibrate your battery by manipulating batterystats.bin, and any dev that tells you otherwise is simply ignorant of how Android operates. The file contains no information whatsoever pertaining to battery charge indication. You'd achieve the same results by rubbing a baked potato over your device as you would using a calibration app.
This myth was debunked officially a full year ago by Google's Android team. .
The one and only way an end user can ‘”calibrate” the battery's internal fuel gauge would be to FPO a full charge/discharge cycle on the battery. This should not be done frequently, as it negatively affects the longevity of the battery, though.
Sent from my Nexus 7 using Tapatalk HD
Your rant is extraneous, which you would have understood had you read the thread. If you happened to have read the thread and decided to rant regardless, then I'm perplexed why you believed that your rant would contribute to the discussion.
najaboy said:
This tirade isn't directed at anyone on this thread, I'm just generally dismayed that this snake oil still perpetuates despite clear and convincing verification that it does nothing...
I can't believe that people still believe in the snake oil that these apps peddle. Battery calibration apps are 100% worthless. You cannot calibrate your battery by manipulating batterystats.bin, and any dev that tells you otherwise is simply ignorant of how Android operates. The file contains no information whatsoever pertaining to battery charge indication. You'd achieve the same results by rubbing a baked potato over your device as you would using a calibration app.
This myth was debunked officially a full year ago by Google's Android team. .
The one and only way an end user can ‘”calibrate” the battery's internal fuel gauge would be to FPO a full charge/discharge cycle on the battery. This should not be done frequently, as it negatively affects the longevity of the battery, though.
Sent from my Nexus 7 using Tapatalk HD
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Click to collapse
Dang dude take your Xanax. But you are right that a full charge cycle is all the calibration that ever needs to be done. But the value of that to somehow correct the display is doubtful. On some devices it might be helpful, but the fuel gauge capabilities on android are pretty basic from what I have read.
Sent from my N7 using XDA Premium
Dirty AOKP 3.2 & m-kernel+ a33
ezas said:
But you are right that a full charge cycle is all the calibration that ever needs to be done.
Click to expand...
Click to collapse
I did that twice this weekend. Just now, my N7 jumped from 20% to 0% and shut itself down again. As a bonus, because it's now dying directly from ~20% I don't even get a low charge warning at all. I think I will explore the warranty replacement route for my device.
Too bad, because it's just a battery calibration issue.
Try rebooting into recovery, go to advanced menu and wipe battery stats, then reboot.
EDIT: NVM, I think we established wiping battery stats isn't re-calibrating.
Southrice said:
Try rebooting into recovery, go to advanced menu and wipe battery stats, then reboot.
EDIT: NVM, I think we established wiping battery stats isn't re-calibrating.
Click to expand...
Click to collapse
Haha, thanks anyway. It's amazing how this concept circulated in the online echo chamber and became "well established knowledge"... yet turned out to be nothing but a myth.
Between my searches and all the responses so far, I'm left to conclude there is no way to recalibrate the battery. Not even doing a full charge/discharge cycle helps (besides, if it's so automatic and behind the scenes, how would one even tell?)
this was posted on the XDA Portal on JANUARY 14, 2012 AT 7:38 AM BY Liwen..
and i thought i would repost it as it seems lately alot of people are being misinformed about it
Google Engineer Debunks Myth: Wiping Battery Stats Does Not Improve Battery Life...
There you have it, in the title. Google engineer Dianne Hackborn, who has previously explained Android’s hardware acceleration, took to Google+ again to clarify some myths about the Android operating system. This time, it’s a point of common advice that you’ll see in virtually every FAQ thread about custom ROMs and flashing: wiping battery stats in order to improve battery life.
The reasoning behind that piece of advice was something like this: If you, at some point, did not charge your Android device fully (for example, only to 80%), it would supposedly remember that battery level as “fully charged” – in this case, you’d only ever get to use 80% of your battery, which is of course less than optimal. So, if you wipe the battery stats, usually done in ClockWord Mod Recovery, the device would “forget” the previous level, here 80%, and instead charge to the full 100% once again, thereby re-calibrating the battery. Or, as Hackborn puts it in more technical terms:
The battery indicator in the status/notification bar is a reflection of the batterystats.bin file in the data/system/ directory.
However, as she explains, that’s not the case. Because those battery stats, stored in the batterystats.bin file, are only used to maintain information about what is using the battery when not recharging. That is, it essentially holds the information displayed in the Settings > Battery screen. Nothing more, nothing less. Thus:
It has no impact on the current battery level shown to you.
It has no impact on your battery life.
What’s more, you’ve probably noticed that the battery usage data is reset once you recharge your device anyway. From this you can correctly deduce that the battery stats are wiped as well – every time your device is recharged. More or less every day. If there was any effect, you would’ve noticed it without going into recovery and doing that stuff. Typical placebo, eh?
link to XDA Portal post
http://www.xda-developers.com/andro...-battery-stats-does-not-improve-battery-life/
maybe a mod will sticky this as i think it needs to be at the top of the page so people can see it .......
Hackborn, excellent name. Sounds like my kinda girl
Edit; Found another interesting article by her about android multitasking http://android-developers.blogspot.co.uk/2010/04/multitasking-android-way.html
(With a pic)
Robbie P said:
Hackborn, excellent name. Sounds like my kinda girl
Edit; Found another interesting article by her about android multitasking http://android-developers.blogspot.co.uk/2010/04/multitasking-android-way.html
(With a pic)
Click to expand...
Click to collapse
nice find Robbie
hey im gonna pm you about a couple apps you might like
Thank you so much! Even I do not own HTC Leo: HD2 this is still important for us Galaxy Y owners , Can I put this on our Forums and linking a thread here so they know who to thank? and a credits to you also as well . Thanks button pressed.
Sean De Jesus said:
Thank you so much! Even I do not own HTC Leo: HD2 this is still important for us Galaxy Y owners , Can I put this on our Forums and linking a thread here so they know who to thank? and a credits to you also as well . Thanks button pressed.
Click to expand...
Click to collapse
your welcome
yes you can add to to your forum section
no credits to me are needed i just posted it from the xda news page
my htc hd2 wired problem .. my battery drains very fast.. . if i connect power cable after some time phone boots... some times while charging itself my phone switched off.. screen dark.. only liberates no display...
is it problem with my battery..or phone hardware issue...
me changed different rom.. and sd card. two years worked very well .. without any issues.. no Im in big trouble..with this phone
help me
The phone's supposed to turn on while charging when off in MAGLDR, that's completely normal. The high drain could be caused by any number of things and since there are various guides around as to how to reduce your battery drain I'm not going to get into it right now. The other issue you have is (I assume, the wording's a bit difficult to understand) an SOD or 'sleep of death'. Try flashing a newer ROM because afaik this issue doesn't exist on modern HD2 ROMs at all.
cool, good to know.
this is the question about li-ion battary. Smn says that better to charge from 0 to 100. and use from 100 to 0, but theoretically, this kind of battery better be used from 20 for 80 percent. So, there is a lot of things to debate.