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very bad battery drain issue :(

my o2 xda is running tnt wm6 for a long time now with no problems but recently my battery has started draining super fast like right infront of my eyes it drops percent numbers. i run battery status but that has never bugged the battery before. i also tried switching batteries with two of my friends and their phones run fine but mine drains fast. i have charged it with both the computer and the charger. it charges super slow and upon charging when i restart it the battery drops something like 20 percent or more instantly. could this be a virus? i factory resetted my phone and formatted my memory card but im still getting this issue. please any help would be much appreciated!

d3aded said:
my o2 xda is running tnt wm6 for a long time now with no problems but recently my battery has started draining super fast like right infront of my eyes it drops percent numbers. i run battery status but that has never bugged the battery before. i also tried switching batteries with two of my friends and their phones run fine but mine drains fast. i have charged it with both the computer and the charger. it charges super slow and upon charging when i restart it the battery drops something like 20 percent or more instantly. could this be a virus? i factory resetted my phone and formatted my memory card but im still getting this issue. please any help would be much appreciated!
Click to expand...
Click to collapse
try other ROMs.

the fact of the matter is that ive been using this rom for so long without problems and this battery charger thingy just started a few days ago. could this be hardware problem?

Time for a new battery. Try nothing else until you have replaced it, with a new one, not one from another phone.

new battery really? u mean a battery from another phone doesnt do? and yes my battery dies very fast even my friends battery in my phone. cudnt this be a problem in my phone then? cause its his battery

Its definately a battery issue.
Check out this thread and I think you will relate: http://forum.xda-developers.com/showthread.php?t=353780
Then go to eBay and buy an new OEM replacement for like $10 shipped. I think I paid $8 for mine.

I personally think it is a bug.
On three separate occasions using various roms, my battery would drain from 100% to 0% in an hour. I would reset everything, recharge and it would run normal without problems.
I do not know what causes this but it does appear to be a software glitch, at least in my case.

try to hard reset your device and then test (after backup your data).
this can give you the clear reason (in case of the rom was running well with you).
good luck

try another radio!

i had the same issue, but it stop draining after i ordered the new battery

I suspect that it is not the battery or the unit.
its right said:
try to hard reset your device and then test (after backup your data).
this can give you the clear reason (in case of the rom was running well with you).
good luck
Click to expand...
Click to collapse
Actually I am suddenly having the same problem with a brand new battery on a brand new Wizard.
I just loaded the newest Mfrazz Rom which seems to be fantastic in its applications, speed etc. however immediately on loading the ROM, my battery does get hot in normal use and drains to 30% in a normal day. I have even loaded the IRDA disable cab to no particular effect.
Is there some specific procedure to which you are referring for hard resetting the Wizard? I assume you don't just take out the battery?

Dead battery
Lithium batteries can be killed rather easily. I know from rc helis. Most mobile phones use lithium-ion batteries. Helis use lithum-polymer batteries but they have pretty much the same charactoristics. li-poly is a little more volitile, they can and will explode if you charge or discharge too much or too quickly. If you over charge, you kill it. If you over drain, you kill it.
If you are in a place where you get little or no signal turn off the radio. It will discharge quickly if it's searching for a signal. Also if you are not using the bluetooth or wifi turn them off, same thing. That's why they provided the Comm Manager. Try not to let your charge get below 20%. Definately don't let it run completely out or stay that way long.
A dead lithium battery will not hold a charge at all. Just like you see, the numbers dropping off quickly. It will charge fast too.

(Snot the battery)
licensedtoquill said:
Actually I am suddenly having the same problem with a brand new battery on a brand new Wizard.
Is there some specific procedure to which you are referring for hard resetting the Wizard? I assume you don't just take out the battery?
Click to expand...
Click to collapse
Looking at it afresh, it isn't the battery which is heating up on installation of this ROM, it is the unit itself. The battery seems to be remaining at a comparatively normal temperature though the heat generation does drain it very quickly as I said.
Not sure that this problem has ever been addressed before on these boards? It may be something to do with not flashing to a manufacturer's ROM before flashing to Mfrazz's new one?
Has anyone ever seen these symptoms before?

In addition to some of the other posts ,you could check this :
WM6 may need to "learn" the battery levels again.
Try FULLY discharging & recharging your battery 3-4 times.
If this doesn't make things better, maybe you should check if you are running anything strange in the background...

jtrash said:
In addition to some of the other posts ,you could check this :
WM6 may need to "learn" the battery levels again.
Try FULLY discharging & recharging your battery 3-4 times.
If this doesn't make things better, maybe you should check if you are running anything strange in the background...
Click to expand...
Click to collapse
Lithium batteries don't recover like ni-cad. Spend the $10 and solve the problem. DONT EVER FULLY DISCHARGE A LITHIUM-ION BATTERY. That is the quickest way to kill it.

mr.incredible said:
Lithium batteries don't recover like ni-cad. Spend the $10 and solve the problem. DONT EVER FULLY DISCHARGE A LITHIUM-ION BATTERY. That is the quickest way to kill it.
Click to expand...
Click to collapse
As far as I am aware it is difficult to FULLY discharge one of those batteries in the Wizard? The unit starts giving error messages when it gets to the 15% level and some time thereafter shuts most of its functions down to prevent this. Whenever I have had problems with these units getting hot and even discharging and shutting down, the battery level never seems to be at 0% when I plug it in again. I have never thereafter found any permanent damage to the battery.
I think we should address the problem which seems to be in issue here which is that somehting in the OS is causing the battery to discharge as opposed to replacing the battery and watching the problem continue. At least, that was MY problem.
I am obviously not saying batteries don't die. All I am saying is that for a lot of users, the problem may lie elsewhere. Meanwhile I have flashed back to T-Mobile and re-flashed the newest Mfrazz which SEEMS to be quite VoIP friendly and overnight the unit doesnt seem to have heated up.

since i cant order a battery from where i live i tried reflashing my phone and memory card and i think that fixed it. maybe in my case its an os bug. and yes i definitely have been treating my battery badly on discharging and over charging. thanks for the info

They are not that delicate if you know what kills em it's pretty easy to avoid. They don't develop a memory like the older ni-cads. if you are going to store one charge it first. They don't power drain by them selves unless they are in a device. Just don't leave a battery drained. Also they wont over charge in the phone. The phone will stop charging when the battery is full, and 0% is not actually 0volts. There are built in safeguards for the average user.

Connect the charger without battery

Is it possible to connect charger without battery so that i can use device all day and avoid over-charge or possible battery damage?

Beautiful just Beautiful
Guys i have another one for all of you
"Is there a way that i can use my Phone without connection so that i will have no bill charges ?"

Batteries in Tornado can (even should) be charged often Don't worry about it

Yeah, over-charging is no problem. It'll stop charging when it's full.
This does raise an interesting question, one I haven't really bothered to try but have just now become curious about. Can you plug the phone into the wall, sans battery, and use the phone still? Or will it only function, plugged in or not, with the battery installed?

Phone turns off when you get battery out :/

djsleepwalker said:
Yeah, over-charging is no problem. It'll stop charging when it's full.
This does raise an interesting question, one I haven't really bothered to try but have just now become curious about. Can you plug the phone into the wall, sans battery, and use the phone still? Or will it only function, plugged in or not, with the battery installed?
Click to expand...
Click to collapse
LOL, I just tried that last night, and... ohh Noo it don't even turn the power light on w/o a battery... so @Amaric: Keep charging it!

I am aware that phone is not working if you take out the battery and connect it to a charger. I was wondering if there is some kind of a workaround.
My plan was to have phone switched on for months with wireles ON too. That just can't be good for battery and it could even be dangerous.

amaric said:
I am aware that phone is not working if you take out the battery and connect it to a charger. I was wondering if there is some kind of a workaround.
My plan was to have phone switched on for months with wireles ON too. That just can't be good for battery and it could even be dangerous.
Click to expand...
Click to collapse
Do these tests, and post results
Turn off power savings on Wi-Fi and leave phone ON, doing something over the internet, just idling, so that the LCD is off. Say for example: acting as router.
Conditions:
1. Phone w/full battery -
2. Phone charging w/full battery -
How long did he battery last? How did the phone temperature change? What would you guess would happen in 48hrs of usage?
EDIT: My experience with Wi-Fi is that it drains more power than the charger output. Temperature raises substantianlly w/o LCD, gets extreamly hot w/LCD on. So what would be the options?

wird
when im booting linux and the phone is charging you can take the battery out but the phone will still be on nice

bestever said:
when im booting linux and the phone is charging you can take the battery out but the phone will still be on nice
Click to expand...
Click to collapse
Is this a joke? If not, then some change to a software (OS) could do the trick.

amaric said:
Is this a joke? If not, then some change to a software (OS) could do the trick.
Click to expand...
Click to collapse
my opinion? If it does stay on after removing the battery, then it'll do the same if you have the phone on while running Windows, and charging and remove the battery. Battery charging is not handled by OS, its handled by Hardware.

markanthonypr said:
My experience with Wi-Fi is that it drains more power than the charger output.
Click to expand...
Click to collapse
Does anyone else think this is true? I think it would be unlikely that having the screen off but wifi on would use more power than the wall adapter provides.
I suspect that you could jumper the battery connections to mimic a full battery, but I am not going to try.

I think you can put resistors to mimic the internal resistance of a battery, but I wouldn't recommend it. If anything goes wrong you might burn out the charging/power control circuit which probably would turn your phone to a brick.
Oh, and the whether it charges when plugged in and using WiFi depends on your charger. I've got a 6V 2.4A (15W) charger for my phone, good luck using up all that juice with a Tornado. That thing easily charges my TyTN with HSDPA (3G), WiFi, Bluetooth and screen active.
15W is more or less what my laptop uses under normal load

universal battery not charging

hi all I have a problem
my universal battery is not charging ,after connectint to charger orange light glows and it battery status shows that the battery is charging but it cant be charged more than 5%,light remains orange but not being charged,I forgot to mention that I m using a charger with current rating of 550 mA.it was charging before,but not charging now having same problem with usb port charging ,what should be the problem
is my battery dead or some thing with my universal,
Does orignal charger solve the problem?
plzzzzzzzzz help?????????
what should i do?

Well charging with original charger is always the most recommended and trustable mode to preserve your batterry.
Alsoperhaps battery come to it´s end, try with another battery (original one!)
Have a look on Universal wiki there is a good tutorial of batteries that maybe can help you.

orb3000 said:
Well charging with original charger is always the most recommended and trustable mode to preserve your batterry.
Alsoperhaps battery come to it´s end, try with another battery (original one!)
Have a look on Universal wiki there is a good tutorial of batteries that maybe can help you.
Click to expand...
Click to collapse
i have changed my batterie a couple of months ago
its mean my uni is fine problem is with my battery??

Most likely and more if it is not an original battery
Do the battery tests listed on the wiki

hi
universal use 1A charger
if use USB only, just have 500MA (not enough the charge the Battery)

I had a customer with identical problem and the cause was the battery. I ordered another battery and all went well - charging and working as it should.

its certainly a battery problem. there's nothing to do if even its wall or usb you are using, it simply varies the charging time. remember however the golden rule in battery charging, regularly using charger with higher rating than the recommended one could damage your battery.
my cent..

it is surely battery problem.

thanks all of you,
going to buy a new battery
once again thanks

orb3000 said:
Most likely and more if it is not an original battery
Do the battery tests listed on the wiki
Click to expand...
Click to collapse
i could not find the battery test on wiki plz can you give me the link

There you are:
http://wiki.xda-developers.com/index.php?pagename=UniversalBatteryIssue
http://wiki.xda-developers.com/index.php?pagename=UniversalSmallBattery
Hope it helps,

hi all
i charged the battery using external charger and it charged.and showing 97%.
what is this?????????

Perhaps it´s time for a new battery!

hi Dani,
everytime i full charge my battery with external charger, and put it on my uni, it never show 100%. I think we have a bad external battery
before you buy a new one, u should try what Orb3000 post in post #11.
sometime, for some battery, the battery meter can not read right becouse charging always in different %. I mean it charge in 5%, and tomorrow in 78%, and yesterday in 25% ... so you need to re-calibrate the battery. I ever have this problem and problem solve.
if it cannot solve your problem ... maybe the best one you should try is in post #13

indrastrid said:
hi Dani,
everytime i full charge my battery with external charger, and put it on my uni, it never show 100%. I think we have a bad external battery
before you buy a new one, u should try what Orb3000 post in post #11.
sometime, for some battery, the battery meter can not read right becouse charging always in different %. I mean it charge in 5%, and tomorrow in 78%, and yesterday in 25% ... so you need to re-calibrate the battery. I ever have this problem and problem solve.
if it cannot solve your problem ... maybe the best one you should try is in post #13
Click to expand...
Click to collapse
thanks bro
I am going to buy a new one
bcoz it completely charged in 9 to 10 hours and discharge complety in just 3-4 hours

still not charging
i bought a new battery
but problem is still there
i charged the older one with external charger and it discharged with in one and half hour and it tunred off at 4% power.
is it a problem with device main board or some where it is shortcircuting???
plz answer soon me waiting for what to do.

my uni again alive
hi guys thanks for your suggestions.but there was no problem with battery
problem was with charging circuit, it was shortcircuted,now it is repaired and working very fine.happy to see my uni working again.

My Uni is not charging
after using my uni the battery went down to 19%. i thought of charging it up but before i plugged it to a charger i did a soft reset. after that the phone is not charging nor it is coming up. i do not see any LED lights as well. i have plugged the phone to the charger for more than 2 hrs now but still no sign of led light or the phone booting...what can be the cause, kindly help

[Q] Does not recognize battery

Hello everybody!
I have a tranformer tf101 with + / - 6 months of use. After being stopped a few weeks (drained battery) it no longer charge and the system does not recognize the battery. When I plug the charger he starts the boot and not charge the battery. In settings with the battery status is "unknown" and a question mark on top.
I've given a factory reset and nothing. Has also has opened the tablet and unplugged and plugged the battery again. I did a test trying to turn on the device without battery and it turned on like before, like when connected (interrogation and status unknown).
The charger is apparently working, coz is charging dock.
I can not send to warranty because I live in Brazil...
Can anyone give me a light? Have researched a lot and found nothing ...
Thank you all!

Try plugging it into a USB port on your PC and leave it plugged in overnight, turned off.

Goatshocker said:
Try plugging it into a USB port on your PC and leave it plugged in overnight, turned off.
Click to expand...
Click to collapse
thanks for the reply! I've done it, one entire day on energy and other day directly to the USB... But nothing!

Well... It might be possible that the battery is busted from being discharged for so long.
Although... Does it work on battery or does it instantly die when you unplug it?

When I disconnect die instantly! But if is on dock, he stay on

Yeah sounds like the battery is busted then. It works from the dock because the dock acts as a charger for the tablet, just like the 'real' charger.

Strange how a battery with six months of use given problem.
Would if I try to put a higher charge on it (20v) and force her to reactivate might work?

Batteries only last so long, and yours sounds like it is shot.
It's very strange that yours went bad after such a short amount of time.
If the charger charges the dock but not the Transformer, then it's not the charger.
You could possibly buy a replacement battery and perform the surgery yourself.
Other than that, RMAing is the only thing that can be done.
Sent from my Transformer TF101 using Tapatalk 2

Software should not be the problem, right?
I'll try to overload the battery to see if she resurrects.
Then post the result!
thanks all for now!

mtpoth said:
Strange how a battery with six months of use given problem.
Would if I try to put a higher charge on it (20v) and force her to reactivate might work?
Click to expand...
Click to collapse
It not that strange. Its not the age per se thats the issue here - its that it was discharged for so long. Once a battery reaches a certain level, it simply wont charge anymore.
Applying 20v will just blow the fuse in the TF, or worse - fry the whole thing... Dont do that
I read somewhere the fuse blows at 17v or something.
And even if we ignore the tablet for a second, applying higher voltage to the battery will just kill the few cells still alive.
And, in worst case, it can even cause the battery to explode, possibly starting a fire and/or damage a person. Although thats not likely with such a low over-volting as 20v. Im just trying to tell you not to put more voltage on a batter than its designed to get
The only way to 'possibly' repair a dead battery is to trickle-charge it, meaning applying a low voltage over a period of time.

Hello Goatshocker!
This charge 20V must be made directly to the battery and not in TF, it really would kill him! And it would be just a "scare" the battery in about 2 seconds only, the rest of the charge would be normally done after (15v). I've done this with cell phone battery several times!
As the battery is dead it seems, think it's the only option.
But before doing so I'll take you on an assistance to make sure it is the battery.

mtpoth said:
And it would be just a "scare" the battery in about 2 seconds only, the rest of the charge would be normally done after (15v). I've done this with cell phone battery several times!
Click to expand...
Click to collapse
Ah yes, you are quite correct about that. I completely forgot about that method.
Yes, that might indeed work. But I would only do that as a last-resort, although you seem to be quite out of other alternatives

I took him in an assistance yesterday. Tomorrow should tell me the problem. Depending on the result already do the "scare" on battery.
then put the result here!

I had a similar problem. I tried connecting it to different sockets and it finaly charged.
Sent from my U20i using XDA

k.janku1 said:
I had a similar problem. I tried connecting it to different sockets and it finaly charged.
Sent from my U20i using XDA
Click to expand...
Click to collapse
whath kind of sockets you used?

Unfortunately, the overcharging did not work! The battery was completely dead, not sure how this is possible! But it's a valuable tip! The battery dock is the same tablet. So I changed them and I was working with the tablet and dock only works on energy.
Can anyone advise me a reliable site to purchase this battery? The model is ASUS C21-EP101
ty all!

PROBLEM- Phone battery 0% cant turn on phone or charge

Hello everyone and sry if im writting in wrong category.
Today i discharged my phone battery to 0%, and till then i cant turn on phone or charge it back.
Phone is brand new VK WORLD VK700 with 4.4 Android.
Tried charger,nothing happens.
When i try via USB i hear sound on pc for connecting and disconecting device, and that just keep repeating.
Phone dont vibrate or anything.
Phone is as i said new, i take care when connecting charger. Also tryed charger in another phone and it works.
Please help me

mr.artuka said:
Hello everyone and sry if im writting in wrong category.
Today i discharged my phone battery to 0%, and till then i cant turn on phone or charge it back.
Phone is brand new VK WORLD VK700 with 4.4 Android.
Tried charger,nothing happens.
When i try via USB i hear sound on pc for connecting and disconecting device, and that just keep repeating.
Phone dont vibrate or anything.
Phone is as i said new, i take care when connecting charger. Also tryed charger in another phone and it works.
Please help me
Click to expand...
Click to collapse
when you run the battery down to 0, there is always the risk that it will not charge again. batteries have a safety in them, if the charge gets too low, the safety trips, and the battery will not charge again.
unfortunately, you will likely have to buy a new battery.

bweN diorD said:
when you run the battery down to 0, there is always the risk that it will not charge again. batteries have a safety in them, if the charge gets too low, the safety trips, and the battery will not charge again.
unfortunately, you will likely have to buy a new battery.
Click to expand...
Click to collapse
and there is no way to revive battery?

mr.artuka said:
and there is no way to revive battery?
Click to expand...
Click to collapse
there is one way i have heard about, but never tried it.
basically, you need to remove the battery from the phone, then cut the end off a usb cable and expose the 2 charging wires, then touch the power wires to the proper terminals on the battery.
important note, you only want to do this for a couple minutes at a time, then let it rest for a couple minutes. prolonged charging like this could cause the battery to explode, because you dont have the safety regulation thats built into the phone.
you should only have to do this for a couple times, then the battery should be past the low safety level and will charge properly in the phone.
if you want to try it, search youtube for help, i have sen some videos on there about it before.

New battery