Develop Bugs

Charging

i want to kno whether there will b effect to my excalibur if i used it while it is on charge... n i also want to kno wht is the exact volt needed to charge excalibur...

somecuitears said:
i want to kno whether there will b effect to my excalibur if i used it while it is on charge... n i also want to kno wht is the exact volt needed to charge excalibur...
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Well, when I use my excalibur while charging and specifically using wifi...that thing it's a portable heater . It really gets hots on the battery .
Regarding the charging volt, It's 12V to charge.

Mr. Clown said:
Well, when I use my excalibur while charging and specifically using wifi...that thing it's a portable heater . It really gets hots on the battery .
Regarding the charging volt, It's 12V to charge.
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12V??? i charge it using 5VDC...
r u sure it needs 12VDC???? because i hav never seen or heard of any mobile tht charges using 12V..and i once even fried my mobile while i tried to charge using 12V....

somecuitears said:
12V??? i charge it using 5VDC...
r u sure it needs 12VDC???? because i hav never seen or heard of any mobile tht charges using 12V..and i once even fried my mobile while i tried to charge using 12V....
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Click to collapse
How much volts do you think a car charger outputs holds up to 12V
http://bestcelldist.com/htc_excalibur_in_car_charger.html
Mine hasn't fried in 3 years of charging it with a Motorola car charger

Mr. Clown said:
How much volts do you think a car charger outputs holds up to 12V
http://bestcelldist.com/htc_excalibur_in_car_charger.html
Mine hasn't fried in 3 years of charging it with a Motorola car charger
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Click to collapse
thanks... i giv a try...

There may be a little misunderstanding here. I think OP is referring to the maximum voltage which should be applied to the phone.
A car charger requires 12VDC in order to operate.
A wall charger usually requires 110 - 220 VAC in order to operate.
In both cases though, the outpuit to the phone is in the region of 5VDC with a maximum current draw of ~ 1.0 Amps.
Most cell phones require about 5VDC in order to charge.

exciseman said:
There may be a little misunderstanding here. I think OP is referring to the maximum voltage which should be applied to the phone.
A car charger requires 12VDC in order to operate.
A wall charger usually requires 110 - 220 VAC in order to operate.
In both cases though, the outpuit to the phone is in the region of 5VDC with a maximum current draw of ~ 1.0 Amps.
Most cell phones require about 5VDC in order to charge.
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Click to collapse
most cell use 3.7V to 5V tht is when it is converted to 3.79 to 5V from 110~220V with transformer.. so how much "output to the phone" is needed for charging HTC Excalibur...as i hav told before i hav been charging using 5V (converted by transformer) n i m not sure whether it is the required volt or not.. n i think my previous battery died because i used it while it was in charge...

somecuitears said:
most cell use 3.7V to 5V tht is when it is converted to 3.79 to 5V from 110~220V with transformer.. so how much "output to the phone" is needed for charging HTC Excalibur...as i hav told before i hav been charging using 5V (converted by transformer) n i m not sure whether it is the required volt or not.. n i think my previous battery died because i used it while it was in charge...
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Click to collapse
The output to the phone is usually about 5 VDC. For example, the charger that came with my S621 has a rated output of 5VDC with a maximum current draw of 1.0 Amp. The majority of cell/smartphones seem to use chargers which have a rated output of ~5 VDC. The actual amperage, or level of current flow, depends upon the individual phone's design/circuitry. Another point: A USB port operates at 5VDC. It as you know, will recharge the Excalibur, as well as many other phones.
I'm not well versed in circuit design, but I do know that the maximum voltage of a fully charged cell phone battery is ~4.2 VDC. I presume that the individual phone's circuitry modifies the input votage from the charger, to a level which will safely charge the battery. (And cut off the current to prevent overcharging).
I presume, when you mention "transformer", that you are referring to the typical cell phone wall/car charger. A simple transformer would probably be a very efficient means of frying your phone.
As for using a phone while it is charging, I cannot really comment. I use my phone while it is charging only occasionally and even then, for only a short period.
Mr. Clown refers to the fact that his phone gets quite hot when used while charging. That may shorten battery life. That, in turn, may depend upon what the phone is being used for at the time. Obviously, more functions in use = greater current draw = greater heating effect.

[Q] S2 9100g and 2.1 A charger ?

Hello everyone !
I use 9100G for the navigation while driving and noticed that my car lighter / usb adapter declared as max 1000 mA doesnt give enough power to charge, or at least keep the battery at my phone while GPS is on (screen also on all the time).
S2 doesnt drain battery too fast but it drains it percent by percent and if the route is long then it wont last enough.
Thatswhy I bought dual USB car adapter - one port is 1000 mA, other is for the tablets 2100 mA.
Tested the one with the 1000 mA and its same story as with my previous adapter (no wonder since output is same) but Im wondering can I connect S2 to 2100 mA port ?
It surely have enough power to keep the S2 alive and probably to charge it in the same time but Im not sure will I damage the phone and battery ?
Any real life experience about this theme ?
ps
I have read existing threads but no one specified that used 2.1 A with S2 without problems
Thanks m8s !

igord2 said:
Hello everyone !
I use 9100G for the navigation while driving and noticed that my car lighter / usb adapter declared as max 1000 mA doesnt give enough power to charge, or at least keep the battery at my phone while GPS is on (screen also on all the time).
S2 doesnt drain battery too fast but it drains it percent by percent and if the route is long then it wont last enough.
Thatswhy I bought dual USB car adapter - one port is 1000 mA, other is for the tablets 2100 mA.
Tested the one with the 1000 mA and its same story as with my previous adapter (no wonder since output is same) but Im wondering can I connect S2 to 2100 mA port ?
It surely have enough power to keep the S2 alive and probably to charge it in the same time but Im not sure will I damage the phone and battery ?
Any real life experience about this theme ?
ps
I have read existing threads but no one specified that used 2.1 A with S2 without problems
Thanks m8s !
Click to expand...
Click to collapse
There is a good chance that 2100mA might damage ur battery buddy coz when the output current is more than standard then the battery heats up too much than normal. One of my friend's battery was damaged using a charger with diff output current.

You can freely use 2.1A charger. Your handset will control charging current and it won't take more mA than it needs.

Don't know exactly how it's going with i9100G, but i9100 can take up to 650mA current and no more, doesn't matter what source you have. And that's hardware limitation, you can't change it with kernel.
For you, I can only say - check if your phone sees your car adapter as AC charger or USB connection.
When it is seen as USB, it draws from source up to 500mA. To make your phone see your adapter as AC charger you need to short out data pins(2 center) in USB cable. It's cable white and green. After that it will take more power but still I guess it will recharge slowly.
I have preety cool power source [email protected] but still I don't mind modding it to MicroUSB because it will charge as fast as stock 0.7A charger. That's lame :/

You can put it on 100A charger, it will take only 650mA.
Wrong voltage, or some noise and static electricity can kill your phone, not charger strength.
Tapatalk

Be aware of knowing that some navigation apps uses more CPU than others. For example in my country (Poland) is popular a navi called Automapa. It`s great but it uses CPU more aggressively than other navi apss and my phone even if on efficent power adapter is loosing battery. On Sygic/TomTom the problem doesn`t exist.

igord2 said:
It surely have enough power to keep the S2 alive and probably to charge it in the same time but Im not sure will I damage the phone and battery ?
Click to expand...
Click to collapse
As several people pointed out already, you can safely use 2100mA port. The 2100mA is the max amount of current the charger is capable of supplying. The phone's internal circuit (i.e. resistance) will determine how much of that 2.1A is drawn to charge the battery.
With that in mind, you will not see any difference between using 2100mA and 1000mA port, because 1000mA is already higher than what the phone will use, which is around ~650mA. Thus, if you couldn't charge the phone while using navigation on 1000mA port, you will experience the same thing on 2100mA.
Of course, this is assuming that the 1000mA and 2100mA ports indeed output 1000mA and 2100mA respectively.

adotkdotjh said:
As several people pointed out already, you can safely use 2100mA port. The 2100mA is the max amount of current the charger is capable of supplying. The phone's internal circuit (i.e. resistance) will determine how much of that 2.1A is drawn to charge the battery.
With that in mind, you will not see any difference between using 2100mA and 1000mA port, because 1000mA is already higher than what the phone will use, which is around ~650mA. Thus, if you couldn't charge the phone while using navigation on 1000mA port, you will experience the same thing on 2100mA.
Of course, this is assuming that the 1000mA and 2100mA ports indeed output 1000mA and 2100mA respectively.
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Click to collapse
Thanks for the reply, I ve checked the forum thoroughly but didnt found exact answer, anyway I tested it by myself and reults are
1000 mAh is not enough to give sufficient power to charge a phone while GPS is on (screen on) with WI FI and mobile data
2100 mAh is enough to give sufficient power for the task
Phone perform normally, slight heating under the camera at the back side but thats common while charging anyway
Thanks for the reply

igord2 said:
1000 mAh is not enough to give sufficient power to charge a phone while GPS is on (screen on) with WI FI and mobile data
2100 mAh is enough to give sufficient power for the task
Click to expand...
Click to collapse
It sounds like the 1000 mAh port may be supplying something less than 1000 mAh then.
Oh Well. As long as 2100 mAh port works

Check when charging with 1A and 2.1A if phone see connection as USB Charger or AC Charger
Wysyłane z mojego GT-I9100 za pomocą Tapatalk 2

[Q] LG Optimus G E973 Charging Time Issue

Hi Everyone.
I have a question about my used phone LG Optimus G E973. It charge very slowly. It always take about 6 hours for a full charge. If I use the phone, the charging percentage won't go up but go down slowly even if It is being charged.
Is it normal for this model?

Rexkh said:
Hi Everyone.
I have a question about my used phone LG Optimus G E973. It charge very slowly. It always take about 6 hours for a full charge. If I use the phone, the charging percentage won't go up but go down slowly even if It is being charged.
Is it normal for this model?
Click to expand...
Click to collapse
change the charger,.... mine too takes 6hrs on lg charger.. am using .5amp rated charger of lumia 520 .. it charges it in 2:30

I don't think because of charger. I use the same charger with my iPhone and it charge very quick.

Rexkh said:
I don't think because of charger. I use the same charger with my iPhone and it charge very quick.
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Click to collapse
its becaus of that usb cable..... try different usb cable with same charger and it charges quickly.. :good:

krishnanmailbox1 said:
its becaus of that usb cable..... try different usb cable with same charger and it charges quickly.. :good:
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Click to collapse
I did, still slow. I guess it my phone. I just want to make sure that all phones of this model are the same or just me.

Rexkh said:
I did, still slow. I guess it my phone. I just want to make sure that all phones of this model are the same or just me.
Click to expand...
Click to collapse
Since the iphone has a different battery, the charger is also different.
To make sure your battery doesn't die, I suggest you use an LG charger, or at least a charger for a phone with the same amount of mAh on the battery (2100, in this case)

howaboudno said:
Since the iphone has a different battery, the charger is also different.
To make sure your battery doesn't die, I suggest you use an LG charger, or at least a charger for a phone with the same amount of mAh on the battery (2100, in this case)
Click to expand...
Click to collapse
I've been using LG Charger to charge my LG phone. It's already the same model. And you? Do you have the same model as mine?

Rexkh said:
I've been using LG Charger to charge my LG phone. It's already the same model. And you? Do you have the same model as mine?
Click to expand...
Click to collapse
I own the E975, which is slightly different, but the specs are the same and I have not run into this problem before. So I'm guessing it's an error in either the USB-cable or the phone's battery. I'm not sure though.

howaboudno said:
I own the E975, which is slightly different, but the specs are the same and I have not run into this problem before. So I'm guessing it's an error in either the USB-cable or the phone's battery. I'm not sure though.
Click to expand...
Click to collapse
Too bad. So there is something wrong with my phone. Is your main power 110V or 220V? The power in my place is 110V. Sometime I get message "Slow Charging" when I connect my phone to the charger.

Rexkh said:
Too bad. So there is something wrong with my phone. Is your main power 110V or 220V? The power in my place is 110V. Sometime I get message "Slow Charging" when I connect my phone to the charger.
Click to expand...
Click to collapse
I did a little research (I googled it) and that might just the cause of your problem. Many people have said that charging on a 110v outlet is not only slower but also less efficient. To charge your phone faster with a lower voltage oulet, they recommend to buy a charger that is specially made for that voltage, but that might not be a problem since also my charger (LG charger) supports voltages from 100V up to 240V.
"In a very layman terms, voltage is what drives the real power (amperes) into your device. So the lower your voltage as per specified rating then the lower the movement of power to your device.
However, when power moves slowly into your device, it stays longer"
I hope this gives you enough information concerning your problem

Sound like I'm lucky to have a phone which can be charged slowly. How many percents you get if you charge your phone for 15 minutes?

howaboudno said:
I did a little research (I googled it) and that might just the cause of your problem. Many people have said that charging on a 110v outlet is not only slower but also less efficient. To charge your phone faster with a lower voltage oulet, they recommend to buy a charger that is specially made for that voltage, but that might not be a problem since also my charger (LG charger) supports voltages from 100V up to 240V.
"In a very layman terms, voltage is what drives the real power (amperes) into your device. So the lower your voltage as per specified rating then the lower the movement of power to your device.
However, when power moves slowly into your device, it stays longer")
Click to expand...
Click to collapse
I am sorry in advance, my comment is not directed at you personally, since you found this info online...
This is a complete and utter nonsense. It's not even funny, it's just dumb. First off, auto-sensing chargers will work with any AC mains within standard tolerances. 110V, 120V, 220V, 240V -- doesn't matter at all, the charger will output stabilized 5VDC, and will supply the current (Amps) up to its rated maximum. Also, saying that the voltage drives the amps is another BS. The voltage in this case doesn't change -- it stays at 5V (unless you have a crappy or defective charger, of course). Only the charging circuit in the phone determines the current that it draws from the charger.
Speaking of the OP's problem, there might be different reasons for a slow charge. All of them have already been mentioned in this thread. The easiest thing to check is to change the USB cable. Speaking from experience, I have two particular cables that consistently exhibit this issue -- it all depends on the conductors (wires) and the quality of connections. Grab another cable, and see what happens. Next step would be to change the charger for something rated higher (2A, for example). I am 99% sure either of these replacements will fix the issue. If neither of these things work, then there may be a problem with the battery, which can be replaced. The worst-case scenario is a problem with the phone itself (highly unlikely)...

kt-Froggy said:
I am sorry in advance, my comment is not directed at you personally, since you found this info online...
This is a complete and utter nonsense. It's not even funny, it's just dumb. First off, auto-sensing chargers will work with any AC mains within standard tolerances. 110V, 120V, 220V, 240V -- doesn't matter at all, the charger will output stabilized 5VDC, and will supply the current (Amps) up to its rated maximum. Also, saying that the voltage drives the amps is another BS. The voltage in this case doesn't change -- it stays at 5V (unless you have a crappy or defective charger, of course). Only the charging circuit in the phone determines the current that it draws from the charger.
Speaking of the OP's problem, there might be different reasons for a slow charge. All of them have already been mentioned in this thread. The easiest thing to check is to change the USB cable. Speaking from experience, I have two particular cables that consistently exhibit this issue -- it all depends on the conductors (wires) and the quality of connections. Grab another cable, and see what happens. Next step would be to change the charger for something rated higher (2A, for example). I am 99% sure either of these replacements will fix the issue. If neither of these things work, then there may be a problem with the battery, which can be replaced. The worst-case scenario is a problem with the phone itself (highly unlikely)...
Click to expand...
Click to collapse
Guess I really shouldnt trust the internet that much, huh? Haha
But yeah that was the first thing I thought which caused the problem
Thanks for pointing out my mistakes

howaboudno said:
Guess I really shouldnt trust the internet that much, huh? Haha
But yeah that was the first thing I thought which caused the problem
Click to expand...
Click to collapse
Well, explanations like those you quoted could be reasonable to some extent only if you have a really bad charger (either broken/defective, or just made like crap to begin with). I am talking about properly designed and functioning chargers. I have a wonderful example of a cutting-edge engineering from China sitting in my desk drawer: it's a microUSB car charger, which has direct connections from a 12VDC socket to microUSB pins, protected by a 5Amp fuse. Oh, and a cute red LED light, of course. :silly: When something like this is used, anything can happen... If a phone survives, it could be a good advertising for a phone's manufacturer: "Our phones work no matter how hard you try to kill them!"

As I already mentioned, I think it's neither charger nor cable problem. How do I guess that? Well,
1st, I charge my iPhone with iPhone cable and "A" charger. It charge very quick so "A" charger shouldn't be a problem
2st, I charge my iPhone with iPhone cable and LG Charger. It charge very quick so LG Charger shouldn't have problem.
3rd, I charge another android phone with "A" cable and "A" charger. It charge very quick so "A" cable has no problem.
4th, I charge my LG Optimus G E973 with "A" cable with LG charger. The charge is very slow.
Therefore, I guess, none of the accessories have any problem so I think I'm the only one in the world who have this problem.

Rexkh said:
As I already mentioned, I think it's neither charger nor cable problem. How do I guess that? Well,
1st, I charge my iPhone with iPhone cable and "A" charger. It charge very quick so "A" charger shouldn't be a problem
2st, I charge my iPhone with iPhone cable and LG Charger. It charge very quick so LG Charger shouldn't have problem.
3rd, I charge another android phone with "A" cable and "A" charger. It charge very quick so "A" cable has no problem.
4th, I charge my LG Optimus G E973 with "A" cable with LG charger. The charge is very slow.
Therefore, I guess, none of the accessories have any problem so I think I'm the only one in the world who have this problem.
Click to expand...
Click to collapse
your phone usb port might be a defective one lol

My LG E975 used to charge frustratingly slow when I first bought (20 percent over 3 hours). Before taking it to warranty, I did test around to see what's the problem and found it was because of the cable. Some cables work better than the others though. I used the LG charger with the cable of my Sony phone -> still slow; with Asus tablet cable -> working normal (1 percent up every 1 - 1,5min).
Further testing, I used the "faulty" LG cable to charge my Asus tablet, and it worked fine. So (I guess) the USB port of the phone is just being picky on cables . Try charging with some other cables for a few minutes to see if any works for your phone.

any way to change the currents charging voltage in kernel? i have this issue with CM11 but not on stock

[Q] htc charger... quick help please

need a quick help here. i accidentally left my charger at work overnight, and someone decided that its his/her's now ....ive searched around and cant find place to buy the original charger that came with the m8. HTC's website doesnt have it. amazon doesnt. even ebay dont carry it.
i need of a charger. currently using a LG G2 charger thats rated 1.8a 5v .....but with a super slow cable.
is the LG charger okay to use? will it damage my m8 in the long run?
i am also buying this cable on amazon. buy or dont buy?
http://www.amazon.com/Samsung-Universal-5-Feet-Charging-Smartphones/dp/B009OP8KCM/ref=sr_1_1?rps=1&ie=UTF8&qid=1401167720&sr=8-1&keywords=quick+charge+micro+usb+cable
yes, i know there is a quickcharge 2.0 coming out. seeing as the cable is only $5 ...im thinking it will do for now.
thanks in advance

HTC charger outputs 5V and 1.5A. As long as output voltage is same, you can use different chargers. Ampere value just affects charging time. Higher ampere means faster charge. In long term, it can shorten your battery's life, but I don't think 0.3A can cause an observable affect

D0GuKaN said:
HTC charger outputs 5V and 1.5A. As long as output voltage is same, you can use different chargers. Ampere value just affects charging time. Higher ampere means faster charge. In long term, it can shorten your battery's life, but I don't think 0.3A can cause an observable affect
Click to expand...
Click to collapse
thanks. ordering now

simpl3lang said:
thanks. ordering now
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Click to collapse
I use all sorts of chargers. They are pretty much standard now as far as micro usb goes. As said some are higher rated some are lower. I don't think there is any that will damage the phone as long as its designed for charging and is 5v.

I too use multiple chargers and cables and the only issue I've had is a double length cable that works for charging but won't allow connections to the pc
XDA app on m8 running venom

I charger capable of delivering more current will not damage your phone since the phone won't draw more current than it wants.

Using 2.1mA charger instead of 1.8mA ?

Hello Everyone
I'm little curious
Just wanted to ask that is it safe to use a 2.1A charger on 1.8A phone ?
Because most of the car chargers come with either 1A or 2.1A..
Since our G3's comes with a 1.8A chargers..
Is extra 0.3A too high ?
Will it affect the battery life ?
I was reading some articles but didn't get the answer :silly:
On the other hand I also read that..
Too low current (using a 1Amp charger for a tablet designed to charge with 2 Amp charger) causes less damage, but slows down the charging cycle which may deteriorate the battery charging levels or performance in the long run.
Click to expand...
Click to collapse
Did anyone notice from his/her personal experience ?
So the question is which is safe-er ?
To use 1A or 2.1A charger when 1.8A is not available ?

it's not a problem, cause it s the phone that dictate the charging current ( that is in Ampere and not milliAmpere , 2.1A = 2100mA)

emibale said:
it's not a problem, cause it s the phone that dictate the charging current ( that is in Ampere and not milliAmpere , 2.1A = 2100mA)
Click to expand...
Click to collapse
Ops !
typing mistake :silly:

I have used a range of different ones 0.5, 1, 1.2, 1.5, 1.8, 2.0, 2.1 max, different brands too) for my G3 for the past 6 months, no detectable adverse effect on phone or battery.

omr911 said:
Hello Everyone
So the question is which is safe-er ?
To use 1A or 2.1A charger when 1.8A is not available ?
Click to expand...
Click to collapse
Charger is not a current source, it's voltage one. Meaning voltage will be 5 volts, and current will change depending on load.
The current is dictated by resistance of charger, phone and cable. 2.1 A marking simply means that it won't output more than that regardless of resistance.
And yeah, phones do regulate their charging current, so it's absolutely safe to use any charger.

Plus...if battery dies...it is replaceable.

What about ..
Too much current, like using a 2 Amp charger on a phone which is designed for 0.8 Amp or 1 Amp charging may heat up the battery, may hurt the circuitry or may make it misbehave because of static charge build up.
Click to expand...
Click to collapse

omr911 said:
What about ..
Click to expand...
Click to collapse
?..
Well, either the quote is more than 3 years old, or the one who wrote this is an idiot.
read:
https://en.wikipedia.org/wiki/Battery_charger#Mobile_phone_charger
https://en.wikipedia.org/wiki/Power_supply#AC-to-DC_supply
basically, the charger is an AC-DC converter. Charging current is determined by phone, but it can't exceed the maximum current specified by charger's manufacturer - mainly because trying to draw more current from it will make voltage drop below acceptable level.
Samsung phones have a user-controllable charger chip, which is able to drop the current till voltage stabilizes, etc etc etc. I'm 146% sure that other manufacturers use something like that too.