Database Develop

Phone overheat when charging.

Does anyone know why does my phone always overheat when I charge it? My wifi is off, and basically killed all my running apps.
This doesn't happen on my friend's nexus one.
By the way, I'm on FRF91 at&t. Anyone mind helping me with this? It would be greatly appreciated.
Sent from my Nexus One using XDA App

What do you mean by overheating? Like turns off, bursts into flame, "feels hot"?

There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?

Quelltextfabrik said:
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
Click to expand...
Click to collapse
Why does a usb cable heat up more than a "rapid charger" i thought the usb charged half as fast.
It would be logical to assume that less energy would produce less heat,
Please explain

Mine was also cooking on the charger. But after I switched to undervolted kernel the heat is not as high anymore.

android01 said:
Why does a usb cable heat up more than a "rapid charger" i thought the usb charged half as fast.
It would be logical to assume that less energy would produce less heat,
Please explain
Click to expand...
Click to collapse
I believe that the reason would be that USB has constant current, while rapid charger "pulses" the current, making the charging much more effective.

Sindroid said:
Mine was also cooking on the charger. But after I switched to undervolted kernel the heat is not as high anymore.
Click to expand...
Click to collapse
How do you undervolted the phone?
The temperature of my phone can go up as hot as 41C when I'm using the wall charger. But I charged it using the USB cable, it does not get hot at all.
So, is it possible that my wall charger is broken?

Only 41C? Don't worry about it then.

krad1992 said:
How do you undervolted the phone?
The temperature of my phone can go up as hot as 41C when I'm using the wall charger. But I charged it using the USB cable, it does not get hot at all.
So, is it possible that my wall charger is broken?
Click to expand...
Click to collapse
41C is nothing to worry about really. You should only be concerned if it went over 60C and even then it's mostly the battery that's paying the price.

Ah well... All my previous phone never reached that hot when it's charged.
I'm relieved that it's normal to reach 41C when charging then.
Thanks guys.

Quelltextfabrik said:
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
Click to expand...
Click to collapse
No, there's not............ Sheesh.

khaytsus said:
No, there's not............ Sheesh.
Click to expand...
Click to collapse
Yes, there is a difference. Since the capacity charge is definitely different (5 V @ 500 mA vs. 5 V @ 1 A) there needs to be some sort of transformation in the power supply of the Nexus One. And transformation always releases heat.
Since the Nexus One and the Desktop Dock ship with a charger, this seems to be the preferred charging method and it makes sense that the phones power supply was designed to reflect that.
From my own experience I can say that my Nexus One get's very hot when charged via USB and almost no heat increase occurs when I charge it with the wall charger. But there might be a difference for users with 110 V ~ in their sockets.
Also check out the Li-Ion Battery guide, krad1992.

I also noticed that the phone gets a little hot when charging it. But I think that is natural. Also, it wasn't as extreme as you put it, where it would "overheat," instead I could notice that the phone was warmer when placed in the hand, especially in the lower bottom corner. But it never overheats...

If the heat worries you, you could always installed SetCPU (on a rooted device, of course) and set a profile to scale the processor speed down when charging, and I believe the newer versions of that app even let you set a different profile for charging via USB versus AC.

Quelltextfabrik said:
Yes, there is a difference. Since the capacity charge is definitely different (5 V @ 500 mA vs. 5 V @ 1 A) there needs to be some sort of transformation in the power supply of the Nexus One. And transformation always releases heat.
Since the Nexus One and the Desktop Dock ship with a charger, this seems to be the preferred charging method and it makes sense that the phones power supply was designed to reflect that.
From my own experience I can say that my Nexus One get's very hot when charged via USB and almost no heat increase occurs when I charge it with the wall charger. But there might be a difference for users with 110 V ~ in their sockets.
Also check out the Li-Ion Battery guide, krad1992.
Click to expand...
Click to collapse
OMFG, nonsense FUD. 5V is 5V. The phone only draws 500mAh when a 'USB' charge is detected, vs drawing 1Ah when an 'AC' charge is detected. The power supply is not pushing power into the device.
I'm not disagreeing that your phone gets hot when charging with a slow charge, but your assumptions are total nonsense and it's not normal.
Maybe you have some software doing something weird when USB is plugged in charging.. Ever tried shutting the phone down and plugging it on USB and seeing if it also gets hot?

khaytsus said:
OMFG, nonsense FUD. 5V is 5V. The phone only draws 500mAh when a 'USB' charge is detected, vs drawing 1Ah when an 'AC' charge is detected. The power supply is not pushing power into the device.
I'm not disagreeing that your phone gets hot when charging with a slow charge, but your assumptions are total nonsense and it's not normal.
Maybe you have some software doing something weird when USB is plugged in charging.. Ever tried shutting the phone down and plugging it on USB and seeing if it also gets hot?
Click to expand...
Click to collapse
That might be a little harsh...
My phone ALWAYS gets hotter charging from USB (and especially from a USB cable plugged into a non-HTC 1, 1.6 or 2A wall charger).
The phone detects whether it should be in AC or in USB mode based on whether it a couple of the pins are shorted in the cable (this has been confirmed by people taking hotknives to their chargers). If it detects USB mode, it only draws about 450mA. In AC mode (thus, if it sees shorted pins, like in the stock HTC chargers), it'll draw somewhat (slightly) less than 1A.
I think that imperfect quality control or imperfect engineering on the phone might cause some drawn current to escape as heat when in USB mode, but not to while in AC mode.
This does not (at least for me) seem to be a software issue, because I have seen the EXACT SAME BEHAVIOR on CM 5.0.5, CM 5.0.6, CM 5.0.7(.x), CM 5.0.8, FRF50, FRF83, FRF85b, FRF91 and CM6 (both nightly and RC1). I've tried out dozens of kernels, and the problem seems to be a LITTLE better on more fiercely UC'd versions.
Plugging into USB and charging ALWAYS causes my phone to become warm or hot to the touch (after 30min to 1Hr, of course). After a good while, temps go on up to 34-39 on USB, with very little user activity or screen use, versus 29-32 when in AC mode. I have never had the slightest PROBLEM linked with this issue - that level of heat just isn't bad for something designed to work in the sun, sit in your pocket all day, etc.
I can confirm that this is also a problem on an HTC Desire - both the IDIOTIC self-limiting AC/USB regulator and the heat-while-charging-USB issue.
The AC/USB logic used by the phone is the most user-unfriendly thing I've ever seen on a phone, because it is MUCH too strict. It is solely designed to get you to buy "official" HTC fast chargers, rather than letting you use third party gear.
My Milestone would charge (and draw) fast from any old wall bump that could feed enough juice. iPhones do it. My BlackBerry Bold would draw well over 1A and fully charge in less than an hour off of anything that fed enough juice. But my fantastic "superphone" can't do this? That is really the ONLY thing I don't like about the N1 - and it will probably stop me from ever buying an HTC phone again, since I have confirmed exactly the same behavior on other models. Here's why:
If my wife and I travel with our kids, with multiple USB-charged and powered devices, I either have to bring both my US-only N1 charger AND an adapter (we live in France) PLUS another USB source (like a 2-in-1 or a 4-in-1) and cables, OR I can just bring the other source and count on 7 hours a day with my phone plugged into the wall, since 450mA is crap. And all of this is because HTC wants me to buy and use their chargers - which do not accept USB plugs like Moto's, Apple's, third-party, etc.

Quelltextfabrik said:
Yes, there is a difference. Since the capacity charge is definitely different (5 V @ 500 mA vs. 5 V @ 1 A) there needs to be some sort of transformation in the power supply of the Nexus One. And transformation always releases heat.
Since the Nexus One and the Desktop Dock ship with a charger, this seems to be the preferred charging method and it makes sense that the phones power supply was designed to reflect that.
From my own experience I can say that my Nexus One get's very hot when charged via USB and almost no heat increase occurs when I charge it with the wall charger. But there might be a difference for users with 110 V ~ in their sockets.
Click to expand...
Click to collapse
Well. Mine is the other way round. When I charged it with my USB cable, it doesn't get hot at all. But, it gets very hot when I charge with the wall charger.
Sent from my Nexus One using XDA App

Quelltextfabrik said:
There's greater heat if you charge via USB as opposed to the wall charger. Did you both use the same charging methods?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=727067
You voted yet? My results from today are even lower than that of yesterday, but my house is colder than my office.. Wife likes it frigid.. 27C charging on USB today.

Maybe you are using the phone while it's being charged, thus using the processor and producing heat?
I can leave mine on all day, and it doesn't get any hotter than a regular phone being charged. But if I have the OLED on and using processor, then it gets a little warmer.
The hottest I've seen mine get of 47 c, and that was because I was outside at the pool and the sun was killing it lol.

khaytsus said:
http://forum.xda-developers.com/showthread.php?t=727067
You voted yet? My results from today are even lower than that of yesterday, but my house is colder than my office.. Wife likes it frigid.. 27C charging on USB today.
Click to expand...
Click to collapse
I avoid charging via USB because the phone get's too hot for my taste. But I tried just now and it's around 39 °C in an ambient temp of around 23 °C.
khaytsus said:
OMFG, nonsense FUD. 5V is 5V. The phone only draws 500mAh when a 'USB' charge is detected, vs drawing 1Ah when an 'AC' charge is detected. The power supply is not pushing power into the device.
Click to expand...
Click to collapse
Though your slightly unkind post was answered sufficiently by big_adventure, I'd like to add something.
I suspect we both don't know how the input circuit of the Nexus One is designed, so it's pure speculation when we talk about how the power input is handled. HTC can be quiet fast with their hardware iterations, so we might even have different revisions.
But, the Nexus Ones Li-Ion needs a current of 1.4 A (1 C) until 4.2 V cell voltage are reached, ideally. The power the AC wall charger delivers fits in quiet well with almost no transformation. The maximum current the USB port can deliver is way out of the ideal range so there's the need for some more sweet magic in the circuits. And sweet electronic magic is connected to releasing heat.
However the input circuit is designed, there are definitely differences how the input of both charging methods is handled, causing varying levels of heat increase. Depending on what the engineers chose as their bias point. Tolerances have impact, of course and hardware revisions might have changed things. I'd like to be more specific but I have never designed a mobile phone charging circuit nor do I intend to disembowel my N1 for the sake of an argument
Caution: You may find speculation and assumptions but no FUD
Take care.

1200 mA charger; will it smoke ?

Question: What happens if I connect a Nokia AC-10 Micro-USB charger, that has an output of 5V, 1200 mA, into the phone ? I'm asking this because inside the phone, on the back of it, where the battery compartment is, it says maximum of 1000 mA.
So what would happen if I would connect the charger ? Would it end up in smoke ?

lambda30 said:
Question: What happens if I connect a Nokia AC-10 Micro-USB charger, that has an output of 5V, 1200 mA, into the phone ? I'm asking this because inside the phone, on the back of it, where the battery compartment is, it says maximum of 1000 mA.
So what would happen if I would connect the charger ? Would it end up in smoke ?
Click to expand...
Click to collapse
It depends on what the voltage rating for the phone is, if it is 5v, i believe it should be ok, you may find it actually charges slightly faster, if the voltage is higher thats when you can cause damage though.
I am not 100% sure on this maybe someone else can confirm

Phone: 3.7 V, 1000 mA
Battery: 3.7 V, 1500 mAh
Original Nexus S Charger: 5 V, 700 mA
Nokia AC-10 charger: 5 V, 1200 mA
Charge time = battery mAh / charger mA = 1500 / 1200 = 1.25 h = 75 mins
So the NS battery should charge in 75 mins with the Nokia AC-10 charger.
So all the chargers are 5 V rated, ranging from 500 mA (USB cable) to 1200 mA this Nokia charger. For example, with the HTC Desire, I had an 1000 mA charger that worked flawlessly.
LE: Never mind, I found the response. Sorry for making another thread on this matter, but I didn't find the other topic when I first searched the threads. http://forum.xda-developers.com/showthread.php?t=897935
If a mod sees this thread, please, do delete it, because it's useless now. Thanks a lot anyway !

Just on a side note: Your phone will not necessarily charge faster just because your wall charger can supply more current.
It depends on the charging circuit inside your phone, too. If your Nokia charger and the Nexus S conform to the USB charging specification, the phone will know how much current the charger can supply by the resistance between data+ and data- on the USB-plug. But how much current it draws is up to the phone.
Also, charging LiIon batteries is not as straight forward as (battery mAh)/(charger mA).
It will (most likely) be charged constant current at first and later switched to constant voltage top off charge. I read somewhere that the faster you charge at the beginning, the longer the top off will take.
So you will only gain time, if the supplied wall charger was too weak anyway and why should Samsung do that?
In any case, if you want to try anything you should be sure to be inside USB specs. I think it is 5V +- 5%, so from 4,75V to 5,25V. Less should not be a problem, but (much) more can and will fry your phone.

Good to know, thanks a lot ! Maybe I'll come back here with a comparison between stock charger and the Nokia one (in a couple of days).

most definitely not
i'm using a 2Amp car charger, and it charges really fast, even when the phone is ON, full brightness, gps + streaming BT to car audio
lambda30 said:
Question: What happens if I connect a Nokia AC-10 Micro-USB charger, that has an output of 5V, 1200 mA, into the phone ? I'm asking this because inside the phone, on the back of it, where the battery compartment is, it says maximum of 1000 mA.
So what would happen if I would connect the charger ? Would it end up in smoke ?
Click to expand...
Click to collapse

i would think that it would charge faster with your nokia charger but your phone will get hotter than normal. i experience this when i use my 1A charger. 1.2A will make it even warmer. i hope you dont overheat your phone.
ps. fast chargers (15 min chargers) for Ni-Mh batteries have 7.5A. those kind of chargers come with fans on them to cool the batteries while charging because it gets really hot.

Ok guys, thanks a lot, I'll keep in mind all you said. Unfortunately, I've come across a dead Nokia AC-10 charger (don't ask, lol), so I will need to get another one tomorrow. After that I'll compare the 2.

The charging circuit (in the fone) tries to stop the battery blowing up and overheating by pulsing the charge until the battery reaches 70%+ when it drops off and the charge creeps up to 97% (all values approx) when the carge circuit switches off and we are left with a fone at 97%+ (other threads on this topic itself !)
I experimented with standard Nexus AC (700mA) and USB Wall Charger (1000 mAH) and Laptop USB Cable (500 mA) and 1 am disappointed at not being able to get a FAST charge in the thing. Here is a plot of the AC Charge (700 mA charger). It never gets used a full power !
http://www.lacbayvilla.com/images/chargingfromAC.png

Ok... something is really screwed up... when I connect the phone via the Nokia charger, the touchscreen goes haywire... If I touch it in one spot, it sees the touch in another spot... It even starts apps without me even touching them... weird. Is it too powerful for the phone, or what ?

The nokia charger might not be isolated enough from mains. Too much ripple or whatever. It is unlikely IMHO, that it supplies too much current, since it is no current source, but a voltage source.

in case any one wants to know
2 Amps (2000 mAh) Blackberry charger
this is exactly the one i purchased from them http://www.dealextreme.com/p/design...lackberry-9800-9700-8900-8520-dc-10-30v-57622
been using it for over a year now, since i had my old BB and SGS i9000 and kept using the same one for SNS
i use it on a daily basis, as the first thing i do when i get on the car is to plug the charger and put the phone on winshield

Interesting enough, another one from the store has the same effect. Also, on my girlfriend's HTC Wildfire it has the same effect. Guess Nokia sucks as this as well. GG Nokia, keep it like this and you'll eventually fall like the rest of them...

I have noticed too that when the fone is on charge, the screen sensitivity is maxed out and phantom touches can occur all over the place. So much so that I unplug the charger to send sms as I can't type well enough for the spill chucker to guess what language I am using let alone what the word might be !
Anyone found the cause of this annoyance ?

lambda30 said:
Ok... something is really screwed up... when I connect the phone via the Nokia charger, the touchscreen goes haywire... If I touch it in one spot, it sees the touch in another spot... It even starts apps without me even touching them... weird. Is it too powerful for the phone, or what ?
Click to expand...
Click to collapse
The voltage is not current.
It used to happen on my desire when i bought a 99 cents micro USB charger.
By the way i ordered a AC 10 E yesterday so i am a bit worried now.

What the hell did you bump this old ass thread for? So that you can post in the dev thread?

lambda30 said:
Ok... something is really screwed up... when I connect the phone via the Nokia charger, the touchscreen goes haywire... If I touch it in one spot, it sees the touch in another spot... It even starts apps without me even touching them... weird. Is it too powerful for the phone, or what ?
Click to expand...
Click to collapse
I encountered the same situation like you, and I know many people do. I was told by my cell phone supplier that it's all due to the unstable current, which causes magnetic field to influence the scree. Or something like that. My phone even typed words or made calls by itself when charging, I can hardly control it until I stop using the charger. When I connect it to PC with USB cable to get charged or use another charger, everything goes well. So I suggest you stop using the charger on your phone. It might cause damage to it.

Charged mine with a nexus 7 charger, which had at least 2 Amps... Worked fine for me...
Sent from my Nexus S using xda app-developers app

I use 2000 to and i dont have problems.

[Q] Battery charging problem?

I've had the Droid 3 for about 10 days now, and I've been encountering an intermittent problem with charging the phone.
Last night, I plugged in my phone so that it would charge overnight. I made sure that the connections to both the phone and the outlet were firm, and upon plugging it in, my phone's battery icon and lock screen both indicated that it was charging. However, when I woke up this morning, I discovered that the battery had actually continued to discharge overnight. Despite this, the battery icon and lock screen both continued to say that the battery was charging.
I've run into this problem three times this past week. It's entirely possible that I just have a defective device, but I wanted to check and make sure that nobody else was experiencing this issue before taking it back to Verizon.

Check the task manager for programs using lots of cpu. I've found that using google maps nav in the car dock while charging still in fact uses more power than it could charge. Your issue is with the screen off though so check for background apps.
Sent from my DROID3 using XDA App

I have had this problem 2 times and I have had the phone for about the same time. I plugged it in at like 40% watched a movie screen never came on till the movie was over I looked at my screen and the battery was at 11%. I was thinking maybe just a bad connection untill I looked at the notification bar and it said it was charging!

I just got my Droid 3 yesterday and last night, the first night of use, it did the same thing. Even if I go into battery usage and look at the graph it'll say charging but the power level will be going down. Very frustrating.

A Verizon rep I spoke with recommended trying a different charger. Sounds reasonable enough, so I'll give that a shot and post back after a few nights of use.

What is the current rating of the chargers you guys are using? (i.e. 850 mA, 1 A, etc). A good rule of thumb is not use anything less than 1 A (1000 mA).

The Motorola-supplied charger is 850mA.

RandomEncounter said:
A Verizon rep I spoke with recommended trying a different charger. Sounds reasonable enough, so I'll give that a shot and post back after a few nights of use.
Click to expand...
Click to collapse
This sounds logical. I had this same problem two phones that happened to have a slide-out keyboard (Shift, G2) and the problem vanished when I used a different charger. I just read today that 100s of people were having this problem today in a news feed.

I was having the issue too, so I used a 2A charger that came with my Huawei tablet...no more issues! (Charge time is about 1.5 hours too!)

pplude said:
I was having the issue too, so I used a 2A charger that came with my Huawei tablet...no more issues! (Charge time is about 1.5 hours too!)
Click to expand...
Click to collapse
I'd be careful about using higher amperage chargers. Don't want to be burning out the charging circuitry. Not saying you will.. just be careful using a charger not designed specifically for the device.

Apparently the new Moto LiPo batteries have another level of overcharge protection. To be safe, I'm going to use an ohm-meter about once a week or so to check the internal contacts (a higher ohm rating would suggest damage).

pplude said:
Apparently the new Moto LiPo batteries have another level of overcharge protection. To be safe, I'm going to use an ohm-meter about once a week or so to check the internal contacts (a higher ohm rating would suggest damage).
Click to expand...
Click to collapse
Good to know. I found one of those chargers for $6, I'm considering getting one now.
http://www.bargaincell.com/huaweiid...e-p-509461.html?cPath=58893_59091_59092_59093

elkay said:
Good to know. I found one of those chargers for $6, I'm considering getting one now.
http://www.bargaincell.com/huaweiid...e-p-509461.html?cPath=58893_59091_59092_59093
Click to expand...
Click to collapse
That's not the one I have, I'm using the USB-output charger from the S7 SLIM, then the Moto supplied USB cable.

Well, it's been a few days, and I haven't experienced the problem since switching to a different charger. Granted, the problem was intermittent, so it's difficult to know for certain if the charger was in fact the issue, but I'm content with this solution.

I've been using my iPad's 5.1V 2.1A charger without issues for a few days. It charges the extended battery from 10% to full in a little over an hour.

That's the dual-core proc for ya. Wonder why the Xoom uses a proprietary charger? dual-core devices nom battery.

Jewremy said:
That's the dual-core proc for ya. Wonder why the Xoom uses a proprietary charger? dual-core devices nom battery.
Click to expand...
Click to collapse
No? Dual core is more efficient, it shuts down one of the processors when it's not in use. Dual core means nothing about power efficiency. As a matter of fact, it can have an advantage. Each core uses less power, and combined, they can use less power than a similarly powerful chipset.

I've also run into some issues on my 5 day old Droid 3. It seems to be when disconnected from the charger. I have two regular Moto chargers for this, and tried a 1A HTC charger, which this thing will not charge from.
I tried using different micro USB cables, which didn't help, either. I was trying to move the phone around while charging, and seemed to encounter the issue. Either it's a connector issue for the mUSB, or the (especially short and stiff) charging cables have broken conductors inside, and we're getting a bad batch of cords.
Possibly the D3 has its own issue with charging, but I didn't have a problem until this morning. regular mUSB cords won't work for me at all, as I've tried all I have.
Given this issue, I'm wondering how widespread this is, and if it's something to take the phone back for. I took me a few hours (over 3) of waiting and fiddling with it, but it's at least charging now.

I had this issue to. I used a different charger and cord to charge my phone at night woke up the next day no charge. I went to work pluged in to my wall charger and still no charge. I did a factory reset thinking that might work but it did not. I was going to take it to a verizon store after work so on the way there I pluged in to my car charger an it started to charge so I skipped the store. When I got home I used a different cord and wall charger and it also worked. I did notice that when I plugged in the night before that a small little white light was lit up for a second in between the charging port and hdmi. I know there is a light there but never seen it light up before. So maybe that was behind all of this. Not had a problem sense.
Sent from my DROID3 using XDA App

The amperage you see stated PS units has no effect on your phone. That's not how many amps leaves the unit to charge your battery. That's how much the PS unit can handle as a draw. In reality the reason the stock ones are only 850 only means that the manufacture used spec parts for the PS unit. i would think that Motorola's minimum spec was 850 and so that's what the PS units manufacture used.
The higher the number means nothing other than you can bet the 1AMP one is going to out last the 850.
Of course the last statement is highly speculative because i have no idea what the amp rating for the phone is. But what i do know is that all the parts are made in china and you can bet they are not going to overbuild anything.
If the amp range is 675-832, which is the number I would expect then if the phone draws more than 850 for an extended period of time the units internal fuse could blow. Unless of course you purchased a third party unit that has an external fuse. Then you can jsut replace the fuse and not have to worry about going out to buy Chinese garbage. lolz
but then again i bet this Droid 3 is made in china, oh well. I like it anyway

Charging Issues, special cable and charger needed

Just picked up this phone and I love it. On stock 4.1.2 I have charging issues where the phone will only charge with a very good charger capable of putting out >1A and a beefier cable.
Which rules out charging from computer and some shoddier chargers. This is a deal breaker for me.
I will go ahead with rooting and upgrading OS to custom, if someone can verify that this will be a non issue after completing that? Thanks.
Edit: further when streaming netflix and charging, the chargers can't keep up with about 30% screen brightness. Will also be resolved?

how many chargers don't output 1a or greater these days? im using a htc hd2 charger that's nearly 4 years old and a generic usb cable and have no issues charging the phone

Richy99 said:
how many chargers don't output 1a or greater these days? im using a htc hd2 charger that's nearly 4 years old and a generic usb cable and have no issues charging the phone
Click to expand...
Click to collapse
Well for the second point I'm even using a 2A charger and and its charged 3% in 2 hours, with netflix, which seems more like a software issue.

and have you rebooted the phone? I had issues like that on my old galaxy note, a reboot often fixed it due to other processes and apps running in the background

I also am struggling to find a decent cable to charge my phone with.
The supplied cable charges it very quickly, but is a little too short to comfortably use the phone while it's charging.
I have purchased a couple of longer cables that seem to be of decent quality (24 awg), but the time to charge the phone fully increases dramatically when using them.
This is all when using the supplied charger.
Sent from my C6603 using Tapatalk 4

Richy99 said:
and have you rebooted the phone? I had issues like that on my old galaxy note, a reboot often fixed it due to other processes and apps running in the background
Click to expand...
Click to collapse
Tried the reboot, still the same issue. I think I've realized the problem and it looks like software.
I have a kill-a-watt meter. With screen on, and netflix streaming, for some reason its only drawing 3.3W. @ 5V this is only .66A. Clearly too low to charge with. However when I turn the screen off, after a few seconds draw goes to 8.2W, ~1.6A. Now I'm not concerned with staying on the stock OS, however do people still have trouble with this on custom OS?

Sweird...I've never noticed any slow charging on my 6606. I've used a few old chargers from HTC , nexus and Samsung. My Motorola Bluetooth charger however doesn't charge very fast at all but I'd expect it not to.

Its not the best to use ur phone to much while charging tbh. It might kill u battery quickly and damage the phone itself.
Sent from my C6603 using Tapatalk 4

Charger + usb cable and current monitoring

I lost my xperia z' s charger and so I brought a samsung note 2 original charger, since it is a 2000mA charger it can charge xz faster than its original cahrger ( xz can support 2 - 2.1 A charging current at max), and then due to loss of my usb cable along with the charger, I bought a 1.5 mts china cable. Ofcourse it do the charging, but its charging time is slower than what I get using a 1 mt high gauge nokia cable.
So this is what I learned, to get proper charging, we need to use original charger and a good quality high gauge usb cable too.
But since I wanted a lengthy cable of about 1.5-2 mts, I am going to buy a high gauge lengthy cable. Now here is my question;
Do anybody knows an app which realy works on xperia z which can detect the charging current properly?? I tried current widget, samsung charging current apps, and few others, all those apps shows some random numbers which changes randomly ( eg :- 300,206,540,750) , some does shows -ve values also, which totaly make no sense since I am plugged into a 2A charger!!
Thanks in advance.
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Try Android Tuner app by 3c(available on playstore)
In app>>battery manager>>status shows the battery flow also the current capacity and a lot of other info
Also a negative value does makes sense...once your battery is fully charged the current flow is "cut-off" to prevent overcharging the battery and eventually damaging it.
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Sent from my Xperia ZL (C6502) using Tapatalk 4.2.5

I already have that, think its not correct, coz I used a 2amp charger, ( note the charging current) this is why I asked. I think the stock kernel is not reporting it correctly???
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