Hi,
I've received Desire X from friend who couldn't start it.
I've revived the battery (before buying new battery if thats the problem) using 9V battery.
now its alive, however the second I plug it in the flashlight automatically starts.
I've tried with other HTC battery that fits and same voltage and still flash turns on, even without powering the phone.
Any Idea ?
Seriously, you used 9V battery on device which use 3,8V ?
Are you mad!?
Klapo said:
Seriously, you used 9V battery on device which use 3,8V ?
Are you mad!?
Click to expand...
Click to collapse
Mad? No.
However I am electronics engineer.
And the battery now works, I'm sure it's not for long.
To the point, what may cause the flash to be always on?
Chura said:
Mad? No.
However I am electronics engineer.
And the battery now works, I'm sure it's not for long.
To the point, what may cause the flash to be always on?
Click to expand...
Click to collapse
Because you dont use the right battery
Oh sorry but that make me laugh so hard...You say u are engineer but...Agreed with @GtrCraft.Wrong battery can do some strange problems.
I sort of agree with OP. You probably shouldn't have recharged the battery with a 9V, another HTC device should be enough. You might have shorted something inside the phone, so now it's ****ed up.
Sent either from my potato phone, or my Nexus 7.
Stereo8 said:
I sort of agree with OP. You probably shouldn't have recharged the battery with a 9V, another HTC device should be enough. You might have shorted something inside the phone, so now it's ****ed up.
Sent either from my potato phone, or my Nexus 7.
Click to expand...
Click to collapse
The battery labeled 3.7v, while the 9v revive got the battery to 3.32v only.
I don't agree with possible damage to the phone since lower voltage can't do that.
However it is possible that due to lower input level it cause the phone to mis-behave on this specific battery.
Thanks, I'll try to find new one.
Here is a story about overvoltage a battery.
You can try to revive a dead battery by overvoltage it and you can obtain some result for some short time. I tried this many times with batteries/accumulators of different voltages but you must understand this:
1. NEVER apply this with battery in circuit or mounted on device, battery must be unconnected,
2. This method is the begining of the end of batt/acc, after one or two revivals you can throw it away,
3. You can try this ONLY if you must test a device with a DEFECTIVE or old battery. After a short impuls of overvoltage sometimes the battery can deliver enough power to test some things.
I understand, and exactly what I did.
I've verified the phone starts and now I've ordered new battery.
Related
Hey guys,
I'm in a very unfortunate but serious situation here.
My X10 outright refuses to charge via the power point ( please see: http://forum.xda-developers.com/showthread.php?t=1054455 ). And, now, I'm using the EWJet ROM with Zdzihu's custom kernel. My battery is at 0% (charging is a pain, really slow - also, I don't think it's calibrated properly), and, since I'm using this kernel, I cannot off-line charge!
So, I'm looking for an alternative how to charge my battery. Would cutting my cable and matching the positive and active wire's to the battery's positive and negative terminal's be sufficient? If so, how long should I keep it there for at least some charge to get my battery up enough to start my device?
Thanks guys,
Regards,
Mayazcherquoi.
I wouldn't rly suggest cutting the wires since the x10 has internal circuitry that protects the battery, the battery itself should have circuitry too if memory serves right. You could do it if you know what your doing but Li-On batteries tend to be explosive if you don't know what you're doing. If you push for this method I'd suggest having a voltmeter close to check the battery and charger voltage before starting.
You could try finding a wireless charge pad compatible for the x10 if repairing the phone isn't possible. Since you mentioned cutting the cable and matching the wire and such I figure you're handy. So why not try replacing the micro usb connector? I mean its already busted anyway.
EDIT: Charge pad like this http://store.androidandme.com/sony-ericsson-xperia-x10-powermat.htm , hopefully you can find something cheaper :S
kindred7 said:
I wouldn't rly suggest cutting the wires since the x10 has internal circuitry that protects the battery, the battery itself should have circuitry too if memory serves right. You could do it if you know what your doing but Li-On batteries tend to be explosive if you don't know what you're doing. If you push for this method I'd suggest having a voltmeter close to check the battery and charger voltage before starting.
You could try finding a wireless charge pad compatible for the x10 if repairing the phone isn't possible. Since you mentioned cutting the cable and matching the wire and such I figure you're handy. So why not try replacing the micro usb connector? I mean its already busted anyway.
Click to expand...
Click to collapse
Thing is, I don't really have the parts :-/ And I kind of need this up and running by tonight I cut the wires from an old Motorola phone charger (unable to determine which is positive and negative) which details at OUTPUT: 5.0V - 550mA, and practising on an old O2 Graphite Lithium Ion battery (to no avail ) which outputs at 3.7V - 1100mAh.
So far, no explosions. Is this okay to practice on?
Thank you.
Use a voltemeter to determine the polarity. The old phone battery circuitry may be refusing to charge since the battery may have dipped below the minimum allowed voltage to prevent any danger. Since you've gone this far I suppose it won't hurt to see if you can get it going, check the polarity first of the charger though.
Explosions only happen at the instant of trying to charge a dead li-ion without circuitry or trickle charge and also in the event of excessive current which would be heat related.
kindred7 said:
Use a voltemeter to determine the polarity. The old phone battery circuitry may be refusing to charge since the battery may have dipped below the minimum allowed voltage to prevent any danger. Since you've gone this far I suppose it won't hurt to see if you can get it going, check the polarity first of the charger though.
Click to expand...
Click to collapse
Thing is, I don't have a voltmeter
Is there absolutely no visual difference between the wires? Post A picture.
Hmm... I'd guess this question will return a no as an answer but, do you have an LED handy that you could use in series with a resistor as a visual aid?
kindred7 said:
Is there absolutely no visual difference between the wires? Post A picture.
Hmm... I'd guess this question will return a no as an answer but, do you have an LED handy that you could use in series with a resistor as a visual aid?
Click to expand...
Click to collapse
Unfortunately, I don't have an LED, but I have a motor. Depending on how I connect it, it will spin either clockwise or counter-clockwise (I think). How could I determine the positive and negative from that?
And no, the wires of the Motorola Charger were split, and both coloured black. Inside the black insulation, however, is just the standard copper colour.
This is the best illustration I could find: http://mohitjoshi999.files.wordpress.com/2009/08/080609_0658_dcmotorinte2.png
Clockwise has the positive at the top of the motor, assuming the rotor faces out (The page didnt specify but I would think that would make more sense).
Hope that helps.
EDIT: By rotor I mean the shaft.
kindred7 said:
This is the best illustration I could find: http://mohitjoshi999.files.wordpress.com/2009/08/080609_0658_dcmotorinte2.png
Clockwise has the positive at the top of the motor, assuming the rotor faces out (The page didnt specify but I would think that would make more sense).
Hope that helps.
EDIT: By rotor I mean the shaft.
Click to expand...
Click to collapse
I don't know, I'm kind of doubting it changes sides now since it's too fast.
By that diagram, I think I've found which is which. Still quite uncertain though.
If it's a typical dc motor it will change as you alter polarity.
If you have paper clips you can wrap two on the rotor, if they are different colour it would be even better. That way you could decern what direction it's turning.
kindred7 said:
If it's a typical dc motor it will change as you alter polarity.
If you have paper clips you can wrap two on the rotor, if they are different colour it would be even better. That way you could decern what direction it's turning.
Click to expand...
Click to collapse
Good idea.
Okay, I think I've got it. I've marked the negative (black wire) with some sticky tape.
What now?
Also, thank you so much
Since you have the polarity figured you you could go ahead and try it again on the old battery just to be sure if it can give you any indication of charging. If not try it on the xperia battery. Id suggest monitoring the temperature of the battery while charging by sense of touch, if it feels hot pull it off and let it cool before continuing.
The xperia battery is 5.4 Whr and the power going into the battery is 2.75W, so it should take 1.96 hrs to fully charge, assuming max current. So about 59 minutes will give you 50%.
EDIT: I used the xperia charger power instead of the one you're using
best thing to do is charge it in the car. rev the engine or get it up to 180km/h and that should cause it to start charging and since you have the custom kernel, it will turn on and continue charging. I hope it works, I had the same problem
Sent from my X10i using XDA Premium App
i just got this phone a few days ago. i love it. nothing wrong with it.
super fast and everything. im on 2.3.6. no issues. my battery lasts 12 hours easy. and actually up to 26 hours so far.
i dont even feel the need for a custom rom. at least not for now.
but one thing that makes me mad is how slow the phone charges, anyone know why this is ? it's kinda frustrating lol
any way to change this ?
also....i kinda hate that there is no camera button on the actual phone. oh well.
*Edited*
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
mrljlamon said:
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
Click to expand...
Click to collapse
If I remember correctly waiting till the battery is completely depleted is not a good thing for our batteries.
i never said completely depleted though.
and yea ive read so many reviews to not do that, and reviews that say you should... and reviews to charge it this much and that much and blah blah. may be a new phone, but none of this is new to me.
Charge current is hardware limited from what I've read. Or atleast for the time being. If your using the phone while charging it'll be significantly slower. Also using wallplug makes a difference. If you've got stuff running while charging try throttling down the CPU while charging.
Other than that I think our phone is limited to 650mah to charge. So 1650/650 is about 2.5 hours with perfect efficiency. Now take into account the power being drawn and how the chargers for li batteries work, that's about 3-4 hrs to be expected.
And don't run li batteries all the way down on a regular basis, its not good. I'm not positive on li ion batteries, but with lipo you generally want to use about %80 of rated capacity to prolong life and power of the cell.
400 mA on USB, 650 on a wall charger, CPU/screen usage counts against these limits - no way to change this
Forgot where I read it. Could be wrong too.
Slow charging for this phone was samsungs way of keeping our phones battery in shape. Hopefully prolonging the life of it. I noticed my 3GS lose about 20% of its full capacity in a couple years. Only time will tell?
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
all useful responses and all make sense. thank you guys.
i dont use it when it charges and yea it does take about 4 hours to charge.
coming from a crappy xperia x10 which took about 2 hours to charge from 0 to 100
but this phone is 10 times better even without a custom rom so i can deal.
thank you guys for ur knowledge.
jdbeitz said:
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
Click to expand...
Click to collapse
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Entropy512 said:
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Click to expand...
Click to collapse
Its still there. I have a 750mA charger and iit SEEMS to help but I don't know how to check it
Sent from my AT&T cellular device.
CurrentWidget
he removed the high ma charge back to defaults. you can still change them in voltage control but it wont do a damn thing. as entropy said 650 wall 450 misc.
My remix:
EM EYE YOU EYE
SIYAH nara to the rest, I'm rollin with the best.
SGS2 I777
Entropy512 said:
CurrentWidget
Click to expand...
Click to collapse
Does that widget only show charging current?
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Enjoy the fireworks.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Hmmm when I used to run a different widget it would report that, but not with current widget. However I'm on a different ROM now, what ROM you on?
I'm currently on the latest ICScrewed
Sent from my SGH-I777 using XDA App
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
If you are on Entropy's DD kernel you should divide that number by 2.85
Battery charge current monitoring (CurrentWidget) support - only reports charge current and not discharge, and reports a value 2.85 times the actual current. Use CurrentWidget's "operation on value" to divide by 2.85.
Click to expand...
Click to collapse
Hello
So my GS2's battery was seriously getting crappy, and I ordered a new original battery (more expensive, but I really wanted it to work properly). Before the replacement, it was all over the place, and I think I may very well have a phone that's seriously confused about its battery options.
Thing is, after the replacement the phone isn't charging the new battery properly (AFAICT). If I'd have to venture a guess, I'd say it charges it to 33% and then it states 100% full.
So, I get just a handful of hours of regular on-time with this new battery. Sometimes the phone hard-dies when saying about 50% remaining, other times it actually says something like 2% remaining, then dies, but still awfully far from logical, considering the fresh battery replacement.
I've searched for how to calibrate this thing, and most results simply recommend the "fully deplete, then fully charge, extract, reinsert, etc." method.
However, this does nothing to help me.
I read somewhere that for some custom ROMs (Dorimanx kernel?) you could do a more "explicit" recalibration, but I'm not sure if that'd work — as I'm on ParanoidAndroid ATM, and here I don't have such option.
So... Does anyone here know of any more "legitimate" way of recalibrating? I really don't want to buy a new phone, as these days I don't see any phone I really want to buy...
TIA,
Daniel
new batteries require a few charge discharge cycles before they reach max capacity, you may need to leave it on charge for longer than the "charged" info appears.
Sparks9876 said:
new batteries require a few charge discharge cycles before they reach max capacity, you may need to leave it on charge for longer than the "charged" info appears.
Click to expand...
Click to collapse
+1
Sparks9876 said:
new batteries require a few charge discharge cycles before they reach max capacity, you may need to leave it on charge for longer than the "charged" info appears.
Click to expand...
Click to collapse
Thanks, Sparks, but I've already done this many times. I've had the battery for a couple of months now, but I really need to figure out how to calibrate the phone so that it starts behaving "normally" with my new battery...
Let it die, juice it up while it's off, take the batt for 90 sec when it hits 100% and put it back in?
Sent from the little guy
No. The whole 'calibrate the battery thing' (and the apps that claim to do it) on the S2 is Kool Aid.
There is no need to calibrate the battery
sorry for my english
MistahBungle said:
No. The whole 'calibrate the battery thing' (and the apps that claim to do it) on the S2 is Kool Aid.
Click to expand...
Click to collapse
beicuxhaven said:
There is no need to calibrate the battery
sorry for my english
Click to expand...
Click to collapse
Something definitely needs calibration, and yes, of course it's not the battery itself when buying a fresh original battery does not fix one's battery problems, it must be some battery controller somewhere. I just started a new job, and my CEO has a Galaxy S3 which started having battery troubles. Like me, he replaced the battery, and like me, nothing changed.
In the meantime, my S2 died completely, so problem "solved" I kinda feel retarded for planning on buying a Note 3... Probably ought to run from Samsung devices altogether...
Well I had hoped that this day wouldn't come,
But.... My TrueSmart has stopped working.
Not sure what the issue is..... I went to turn it on this morning like I always do... (I turn it off at night).
Pushed the "on" button and got no response from the watch. So I pulled the battery, put it back in, watch will flash white for a few sec and then be dead.
I swapped in the other battery I have... same thing.... So I thought that somehow the batteries drained themselves... so I connect it to charge and there is NO indication that it is charging... Left it for a while to see if it would come alive...
Nothing.
Very disappointing.
I was actually enjoying the watch very much looking forward to what the Devs were coming up with next. Pretty bummed out.
I guess I will put it in a drawer and one day when Laurent Le Pen opens a repair center I might be able to get it fixed.
Back to wearing my Pebble I guess.
Such a shame.... it was a nice piece of tech that started many conversations when people saw it.
D.
I would not give up and still try to revive it. If the battery it's very low it will take some time and several tries before the watch will show signs of life. And the connectors of the dock may not be perfectly working, or even the cable may be faulty. I find it hard to think that the watch just stopped working out of nowhere.
If the battery drops below a certain level the watch will never charge it. The part of the firmware that is supposed to prevent this........doesn't work. The only option is to use an external charger but there may be a fire risk.
The battery situation sounds like it may be accurate as I did drain the battery the other day.
So if my only way to try and get a charge into the battery is to remove it and put it in a stand alone charger, what charger should I use?
D.
That's the problem most likely.
What Loki said is true, many users reported that and even XDA review said same.
It would be great if someone knows for a external charger on ebay we buy and use if that happens.
Even there's a way to charge battery with a stripped wires on usb charger - that's something you shouldn't do if you don't know what are you doing...
Sent from my C6903 using Tapatalk
What battery level percentage is this? I've used mine down to about 10% and it's recharged fine before.
I think you have to let it run right out.
DaBountyHunter said:
What battery level percentage is this? I've used mine down to about 10% and it's recharged fine before.
Click to expand...
Click to collapse
Well...probably ~ 0%.
The trick is to never let TS turn off by itself because of the battery level is too low...
Sent from my C6903 using Tapatalk
funky0308 said:
Well...probably ~ 0%.
The trick is to never let TS turn off by itself because of the battery level is too low...
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
I have let my TS run out by itself several times already, and it charges fine even after that. But it's noted that this is a bad idea..
Anyway, the batteries that came with my watch was about 70% charged from the box, so it sounds unlikely that the other battery that OP tried is completely drained as well. My guess is that there is something else wrong with the watch.
stingray454 said:
I have let my TS run out by itself several times already, and it charges fine even after that. But it's noted that this is a bad idea..
Anyway, the batteries that came with my watch was about 70% charged from the box, so it sounds unlikely that the other battery that OP tried is completely drained as well. My guess is that there is something else wrong with the watch.
Click to expand...
Click to collapse
Could be....
Sent from my C6903 using Tapatalk
funky0308 said:
Well...probably ~ 0%.
The trick is to never let TS turn off by itself because of the battery level is too low...
Sent from my C6903 using Tapatalk
Click to expand...
Click to collapse
I use my TS without cell signal and I've found if I turn off the device and don't use it for a while then power it back on the clock and date will be out of sync until you turn on a data connection. This leads me to suspect it draws no power from the battery to retain these settings when the device is off, which would make sense about why it has this issue? I know for sure Samsung phones etc they display the battery percentage without the reserve to prevent such an issue happening on their devices. As Loki mentioned broken firmware maybe something could be written to prevent this or even to just show the percentage differently.
The time/date issue is because they removed the back up battery (to save space) that keeps the time on all normal sized phones.
Shug69 said:
The time/date issue is because they removed the back up battery (to save space) that keeps the time on all normal sized phones.
Click to expand...
Click to collapse
My galaxy note tablet has this problem.... it runs down fast and then just looses all date and time lol...
I think the issue is my batteries....
I was doing some experimenting today and with some fiddling around I got the watch to respond....
Battery #1 was 8% and then in about 2 min of being connected to the charger was reporting 55%
Battery #2 won't even do anything....
So, I am convinced that the issue is the batteries and not the watch.
Laurent has contacted me and provided a way to get my watch replaced, but it will require me to send it back and then wait for a replacement to be sent
Rather than going through all of this just yet, I wanted to see if I could solve it first.
So, if I wanted to get a replacement battery on my own, any ideas where I could get one from?
D.
no idea. maybe see if anyone near your area also had a TS and is willing to loan you a spare battery for a beer? haha
Sent from my C6903 using XDA Premium 4 mobile app
watchdog service that prevents the battery from draining completely does not work on any of the firmware that Dees, Adam myself and other tested. So even if the battery is the best battery in the universe, an Omate can kill it. I even went so far as to test it with a Motorola battery and it killed that too.
Yeah. It looks like the batteries are toast.
I managed to get one to charge to 100% and was able to use the watch for about 30 min then it died. No signs of life and can't get it to charge again.
I really wish I could source a replacement battery to make sure it is the battery and not the watch so I don't waste the time and money sending it back.
The shipping cost to mail it back is crazy from Canada.
D
"Omate - something new..."
It surly is... ?
Sent from my C6903 using Tapatalk
GADGTGUY said:
Yeah. It looks like the batteries are toast.
I managed to get one to charge to 100% and was able to use the watch for about 30 min then it died. No signs of life and can't get it to charge again.
I really wish I could source a replacement battery to make sure it is the battery and not the watch so I don't waste the time and money sending it back.
The shipping cost to mail it back is crazy from Canada.
D
Click to expand...
Click to collapse
We should get them to tell us a model number so we can source OEM's. What's the motorola battery model Loki tried with his?
Mines run down completely a number of times without issue but I think I'll have Tasker cut it at 5% from now on.
I want to buy a bigger battery for my phone (in terms of capacity). But I was struck with a couple of questions whose answers I couldn't find anywhere.
If anyone have replaced their stock battery with a higher capacity one, please help me.
:fingers-crossed:
These are my doubts;
1) Voltage - My phone's stock battery is rated at 3.9v. What will happen if I replace it with a 3.7v?
I now a bigger voltage can damage the phone but no one has ever said anything about using a lower voltage rated one.
2. Capacity and Calibration - Does any value in the system files need to be changed? Or a simple calibration would do to make the percentage right?
Thank you.
EDIT: Please understand that I've never tried this before. That's why I am unsure.
Bump, anyone?
Adithya FRK said:
I want to buy a bigger battery for my phone (in terms of capacity). But I was struck with a couple of questions whose answers I couldn't find anywhere.
If anyone have replaced their stock battery with a higher capacity one, please help me.
:fingers-crossed:
These are my doubts;
Click to expand...
Click to collapse
Welcome to the xda forums, please, don't bump since it is not appreciated anywhere and might even lead to less help (some people won't even open threads that have more than 0 replies).
Adithya FRK said:
1) Voltage - My phone's stock battery is rated at 3.9v. What will happen if I replace it with a 3.7v?
I now a bigger voltage can damage the phone but no one has ever said anything about using a lower voltage rated one.
Click to expand...
Click to collapse
Depends, I don't think a .2 lower voltage is going to make a difference, but since I do my physical work in a computer repairing shop I know that for charging a laptop this wouldn't matter since it is such a low difference.
Adithya FRK said:
2. Capacity and Calibration - Does any value in the system files need to be changed? Or a simple calibration would do to make the percentage right?
Thank you.
EDIT: Please understand that I've never tried this before. That's why I am unsure.
Click to expand...
Click to collapse
[/quote]
What you have to do is fully discharge the phone (using the new battery) and charge it back up without starting it and then fully discharge from 100% and charge it back up. This will get the phone (and its charger circuit) some metadata about how long it took to charge and other various tasks performed by the system.
Good luck!
RAZERZDAHACKER said:
Welcome to the xda forums, please, don't bump since it is not appreciated anywhere and might even lead to less help (some people won't even open threads that have more than 0 replies).
Depends, I don't think a .2 lower voltage is going to make a difference, but since I do my physical work in a computer repairing shop I know that for charging a laptop this wouldn't matter since it is such a low difference.
Click to expand...
Click to collapse
What you have to do is fully discharge the phone (using the new battery) and charge it back up without starting it and then fully discharge from 100% and charge it back up. This will get the phone (and its charger circuit) some metadata about how long it took to charge and other various tasks performed by the system.
Good luck![/QUOTE]
Thanks, and sorry about the bump.
A low quality replacement battery was enough to fry my xperia z1's charging ic in long term, let alone a different voltage battery. As stated before me, logically 0.2 v difference shouldn't make much difference, but i highly recommend against it because charging ic *may* be specifically designed for 3.9v and *may* overcharge your new battery. But nothings for sure you and should try and see it for yourself, and maybe keep us updated too
P.S: Whats the make and model of your phone? Just curious.
Konur said:
A low quality replacement battery was enough to fry my xperia z1's charging ic in long term, let alone a different voltage battery. As stated before me, logically 0.2 v difference shouldn't make much difference, but i highly recommend against it because charging ic *may* be specifically designed for 3.9v and *may* overcharge your new battery. But nothings for sure you and should try and see it for yourself, and maybe keep us updated too
P.S: Whats the make and model of your phone? Just curious.
Click to expand...
Click to collapse
It's from a local company here: Intex Cloud Tread. (One of those MT6591 phones)
The charging IC can fry the battery, but isn't charging voltage supposed to be higher than the battery voltage?
I'll check the charging voltage for my stock 3.9 v battery with Ampere and report it later here. Thanks. :fingers-crossed: