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Hi All,
Was wondering if anyone knows the maximum current the SGS2 can draw for charging purposes. I had a look at the wall charger provided with it, and it's 0.7a; it takes forever (my opinion) to charge compared to my last phone. Just wondering if it is worth my while investing in a more powerful charger.
Cheers
If you take the battery out and look and the sticker then it says there 1000mA
Excellent thanks; Can't get the back off my phone (fingernails).
oozrafa said:
If you take the battery out and look and the sticker then it says there 1000mA
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Click to collapse
Also, at the start of the SGS2 charging cycle, my wall-plug power meter reads 5.1 W.
5.1 is what the adapter is pulling. All of that isn't getting to the phone. Funny thing for my is the phone charges faster off my blackberry 0.75a charger then it does off my Galaxy I 1a charger.
Sent from my GT-I9100 using XDA Premium App
Someone in another thread mentioned seeing something in the source code about the phone drawing at most 650 mA (instead of a more typical 1000 mA) during charging. If that's the case, a more powerful charger by itself won't help; you'd also need a custom ROM that doesn't limit the charge current.
Does anyone know why Samsung would limit the charge current?
theinstagator said:
Does anyone know why Samsung would limit the charge current?
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Speculation is that its a heat related problem. Don't want to pull a Sony and have the batteries explode on people... (but again, that's speculation)
Murfle said:
Speculation is that its a heat related problem. Don't want to pull a Sony and have the batteries explode on people... (but again, that's speculation)
Click to expand...
Click to collapse
I also heard that a smaller charging current extends the Li-ion battery's lifetime, even though I'd prefer quicker charging as the battery can be replaced with ease.
I second that. I tried it today with a 1A car charger (USB cig. plug) can't say it made a difference on speed of charge compared to wall one.
Just received my SGSII and the charging is extremely slow. 3+ hours = about 500 mAh, on a 1A wall charger. Never had such a slow charging smartphone before
To change i9100 charging current you have to short r529 or r531
Current limit will change to 1000mA
You can use 2A charger and phone will charge only with 650mA current
But after this short one of those resistors current limit will change to 1A
I use it on my phone and all is fine. Current after change is measured.
Wath this film youtube.com/watch?v=FL71G2YEIHU
Make shortcut of resistor and check your new current and feel the difference.
Is there a logfile, where I can see which charge current is used?
I have the suspicion, that my noname charger is not recognized properly and it only charges with USB current (450mA).
hmm a 1000mA current could be used also for the 2000mAh battery?
Yes, should not depend on the capacity of the battery.
Sent from my GT-I9100 using xda app-developers app
good
thank for all, it help me so much
1000mA is more likely the maximum current that the phone is expected to drain from the battery.
It is not the battery charging current, which is presumably equal to the mentioned 650mA, since the 1650mAh battery charges in about 4 hours.
If the charging current was actually 1000mA, then the 1650mA battery it would charge in 2 hours or so, but as we all know, it is not so, even with a 2A charger.
mine took about 4 hours charge the battery
The charging time depends on the Charger and Rom i use, i havent figured out for what reason.
Sometimes the SGS2 is charged in approx. 1 hour and with other Roms the charging time may take up to 3h.
kirschi said:
The charging time depends on the Charger and Rom i use, i havent figured out for what reason.
Sometimes the SGS2 is charged in approx. 1 hour and with other Roms the charging time may take up to 3h.
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Click to collapse
Definately 650ma, IF the phone detects an High current USB port, otherwise it falls back to lousy 400ma.
You can trick into 650ma always: take a usb cable, cut from the PC plug side the TX/RX cables, on the other side short them on PHONE plug side these two cables.
Phone will now always go into "AC charging mode". Don't worry (too much) for your USB ports, they can all well 1000ma, and the one that cannot will report "high current detected, port disable".
:fingers-crossed:
The Samsung charger adapter which comes in the box is very slow in nature. It take more than 2 hours to charge my phone. I was wondering if I can use the following Nokia brand chargers which are fast chargers?
Nokia Charger Adapter CA-146C
Nokia Fast Micro-USB Charger AC-10
It won't make any difference the phone decides what current it draws from the charger, so it'll take just as long to charge.
Are you really sure about this? Can you link me to some articles which confirm this.
Even I was thinking about purchasing AC-10 charger from Nokia.
How fast is the nokia charger?
0-10% -> 100% in an hour or less?
Joey2o11 said:
It won't make any difference the phone decides what current it draws from the charger, so it'll take just as long to charge.
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Click to collapse
I'm not sure about this. I have a friend with a Blackberry Playbook and he reckons his phone charges much faster if he uses the charger from that.
The "stock" S2 charger is 700mA - it doesn't take a genius to work out that for a 1650mAh battery this will take about 2.5 hours to fully charge the battery under ideal conditions (phone off) or anything from 3-6 hours with the phone on, depending all what's running or if you're using the phone while it's charging.
Which is all pretty ridiculous - ok we're comparing apples and oranges when we compare a S2 to the likesw of a Nokia, but I do miss the days when I could charge my phone in an hour and have it last two or three days. I thought my Blackberry was bad but at least I can usually squeeze a full day out of it...
The only wall wart I had lying around that was more than 700mA was a 5V 2A supply. I've tried with that which works, but the phone chokes with a "battery overtemp" warning after about 10 minutes - which tells me I AM pumping more into the battery than it can handle. This would suggest that there IS a happy medium where we can optimize the battery charge time - I'm bust looking for a 1A supply...
I have TWO AC-10Xs, and am using it with the Ninphetamene kernel (which comes with increased charge input mods to 800ma) fine. Charges to full in about 2.5-3 hours.
I've never gotten overcharge errors either.
Hi,the usage of more powerful charger will eventually reduce lifespan of your battery. This comes from basic physics, materials and so... Higher mA means faster current, which wear the material of the capacitor - battery.
I have capdase 2 USB car charger that was used for my old iphone device.
It outputs 1A.
is it safe to use it?
I tried to charge with it for 10-15minutes or so, and didnt recognize any suspicious warmups...it reached 41~degrees while at the moment im charging and using it as a hotspot and its on 38 degrees.
DobermanS said:
Hi,the usage of more powerful charger will eventually reduce lifespan of your battery. This comes from basic physics, materials and so... Higher mA means faster current, which wear the material of the capacitor - battery.
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Click to collapse
The phone (specifically, the kernel) limits charge coming in, and there MUST be hardware limiters on the batteries and the phone themselves (which, in some cheapo batteries DON'T WORK and results in them frying themselves and the phone in process) and the batteries are replaceable anyway.
eranyanay said:
I have capdase 2 USB car charger that was used for my old iphone device.
It outputs 1A.
is it safe to use it?
I tried to charge with it for 10-15minutes or so, and didnt recognize any suspicious warmups...it reached 41~degrees while at the moment im charging and using it as a hotspot and its on 38 degrees.
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Click to collapse
i use htc wall charger rated at 1A and having no proplem with ,a pc USB port is capable of 1A and we all know there are no problem ,even so there are no visible improvement in charging time because as someone said the charging current is automatically regulated
ledavi said:
i use htc wall charger rated at 1A and having no proplem with ,a pc USB port is capable of 1A and we all know there are no problem ,even so there are no visible improvement in charging time because as someone said the charging current is automatically regulated
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That's good to know that the current is regulated by the device.
Is there a software to see what is the current taken by the phone?
As long ad the temperture isn't higher than 45degrees is it ok?
By the way, Im pretty sure that usb outputs 0.5A and not 1A
Sent from my GT-I9100 using XDA Premium App
battery monitor widget
It seems logical to be able to use all chargers as smartphones all have micro usb .
(I 'm not sute that's mean something in english, sorry)
Great widget! thanks.
I really like the data it gives!
Sadly, while charging with my .7A original charger & meanwhile giving a hotspot to my laptop, it shows that only 76mA comes in!
hehe, gonna take forever to charge the battery this way.
i doubt this. i'm still worried about the compatible problem~~~
After two days with the battery monitor widget Im affraid itself it drains the battery.
could it be it affects the battery?
settings are regular, it monitors changes every 60seconds
Let's see if I can help make things a bit clearer. Feel free to correct where I may be off.
The Nokia thing, it's not a charger. It's a power supply.
The "charger" is built into your phone, hardware-wise.
How can I prove it?
Take the Samsung supplied cable, plug it into your computer. You'll see that your phone is charging too. No, the cable is not a charger. Do you think your computer is a special built charger for your phone? Hardly.
The charging circuit is within the phone, and thus charging the battery when there's available power.
Ok, so we have the charger (i.e. the mobile phone), we have the battery, we need the power. Where do we get power from? The wall adapters (or computers). So what are the wall adapters? Ratings of 1000mah means that the wall adapter can provide up to 1000ma per hour.
However, your charging circuit will determine how much current to actually draw. For example, drawing 800mah for 10 min may raise the temperature to 55 degrees, so after 10 min the charging circuit drops the charging current to 500mah.
Of course, if you're using el cheapo cables, some cables may not be able to support the current draw and you may find that even with 20000000mah power supplies your phone can only draw 100mah.
The SGS2 heats up pretty easily, and it doesn't quite draw beyond 700mah. The circuit built into the phone doesn't allow it to, if i'm not wrong. If your phone is overheating while charging, you better change your case as it's going to cause your phone to overheat sooner or later.
Using a 20000000mah power supply isn't an issue, because the charging circuit within the phone will be able to draw only a certain amount.
Me, I plug my SGS2 into a 2Ah charger every night to charge, and yes it's perfectly fine. I'm only upset that after buying an expensive 2A charger, I realised that the phone is not able to draw high currents (phone even heats up to 55degree Celsius when charging).
Charging the phone on a ice pack (which lowered the phone temperature to 16 degrees while charging) didn't increase the amount of current drawn by the phone, even on a 2A power supply.
My humble advise is, stick with the stock power supply, or at most get a 1A version. No need to splash for a 2A power supply. If you really need faster charging, get a battery charging dock.
eranyanay said:
After two days with the battery monitor widget Im affraid itself it drains the battery.
could it be it affects the battery?
settings are regular, it monitors changes every 60seconds
Click to expand...
Click to collapse
yes of course it does. It consumes a certain amount of ma per hour, doesn't it?
Personally, there's a app called watchdog, look for it, IMHO it helps to catch rouge apps better, and manage battery better.
I thought the whole idea of having a universal micro USB charging connection across most good brands was so you could use other chargers!
moooxooom said:
yes of course it does. It consumes a certain amount of ma per hour, doesn't it?
Personally, there's a app called watchdog, look for it, IMHO it helps to catch rouge apps better, and manage battery better.
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Click to collapse
Well I just like the widget, which shows me also the battery temperture
I hope it doesnt takes too much
I see that the wall charger for the Galaxy Nexus outputs 5V and 1A. Unfortunately, none of the extra chargers I'd like to use as additional chargers have this output. Some of them are 5.1V, and some of them all put out under 1A.
From what I understand, using a charger w/ a higher voltage could potentially damage the phone. I know that this unlikely considering it's only an extra .1V in my case, but I don't want to risk it.
As for the amps, I believe that using lower amps isn't dangerous, but may result in charging taking longer than normal.
Are these two assumptions correct? Also, does anyone know of any cheap chargers that put out 5V/1A? If you put in "phone charger" in Amazon, the second hit is a Samsung OEM charger that puts out 5V/0.7A, but I'd rather get one that is going to be an exact match.
700-800mah are fine and acceptable for charging. But if wanting to play games on a charger and still get some kind of charge, go with a 1000 mah charger. 1000 mah charger is also best to use while using mhl so you can hopefully not lose battery charge while streaming video over hdmi.
Sent from my samsung gt i9250 which is in the wrong country.
Speaking of the charger... anyone found a cheap charger adapter for the Nexus? I don't like the massive brick of a "international adapter" Handtec packaged with the phone >.>
Dmw017 said:
Speaking of the charger... anyone found a cheap charger adapter for the Nexus? I don't like the massive brick of a "international adapter" Handtec packaged with the phone >.>
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Click to collapse
http://www.amazon.com/Samsung-Micro-Travel-Charger-M540/dp/B002HJBM04
http://www.amazon.com/Samsung-Travel-Charger-Adapter-MicroUSB/dp/B0049IE70I
Dmw017 said:
Speaking of the charger... anyone found a cheap charger adapter for the Nexus? I don't like the massive brick of a "international adapter" Handtec packaged with the phone >.>
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Click to collapse
I'm using a Griffin charger for the iPhone (1 amp)... it's very small and the plug blades fold up, making it very pocketable. Give the included iPhone cable to a friend.
http://www.amazon.com/Griffin-NA231...?s=electronics&ie=UTF8&qid=1322795627&sr=1-33
alee said:
I'm using a Griffin charger for the iPhone (1 amp)... it's very small and the plug blades fold up, making it very pocketable. Give the included iPhone cable to a friend.
http://www.amazon.com/Griffin-NA231...?s=electronics&ie=UTF8&qid=1322795627&sr=1-33
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Click to collapse
it's.. 24 bucks ... for a charger..
lol fml
Dmw017 said:
it's.. 24 bucks ... for a charger..
lol fml
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Click to collapse
Haha, it's a nice charger.
If you don't get that one, do get a charger that does at least 700mA... or ideally 1A. Some of the cheaper chargers don't put out a lot of power and it will take a long time to charge your phone.
alee said:
Haha, it's a nice charger.
If you don't get that one, do get a charger that does at least 700mA... or ideally 1A. Some of the cheaper chargers don't put out a lot of power and it will take a long time to charge your phone.
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Click to collapse
...you say it folds too huh :/ ....
but for that price, i wonder if there are any samsung chargers that are just as good if not better..
that is Apple, after all
hey isnt http://www.amazon.com/Griffin-Techn...al-USB-Charging/dp/B004EYH5WY/ref=pd_sim_e_10 the same product , it says it does 5 volts at 5 watts ... thats the same right?
edit: some people are reporting that the charger only charges at 0.5A instead of the full 1A on [some] android devices. if you have the charger, can you confirm your nexus charges at the full 1A watts
I've been doing fine with just plugging it into my computer like I always do with every other phone.
Sent from my Galaxy Nexus using xda premium
Dmw017 said:
hey isnt http://www.amazon.com/Griffin-Techn...al-USB-Charging/dp/B004EYH5WY/ref=pd_sim_e_10 the same product , it says it does 5 volts at 5 watts ... thats the same right?
edit: some people are reporting that the charger only charges at 0.5A instead of the full 1A on [some] android devices. if you have the charger, can you confirm your nexus charges at the full 1A watts
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Click to collapse
Same one.
Good question on whether it's putting out a full 1A. I guess what I do is check the charge times tomorrow with a few different 1A chargers to see if it measures up.
I use this for home:
http://www.amazon.com/Cellet-Charger-Retractable-Cable-myTouch/dp/B004XVM1T0
And this for the car:
http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q
Both are dual-USB and put out 1amp. Charges my GNEX and iPhone 4 (work) at the same time without issues.
Just feel like to chime in here for another question.
I know typical USB port from a PC outputs 0.5A while the wall charger outputs 1A, so besides charging time, is there any particular advantages to use wall charger over USB from PC?
I've read somewhere else states that despite the longer charging time using a USB port from a PC, it provides more thorough charges hence is better for the battery than using a wall charger, is this true?
Thanks!
assisterah said:
Just feel like to chime in here for another question.
I know typical USB port from a PC outputs 0.5A while the wall charger outputs 1A, so besides charging time, is there any particular advantages to use wall charger over USB from PC?
I've read somewhere else states that despite the longer charging time using a USB port from a PC, it provides more thorough charges hence is better for the battery than using a wall charger, is this true?
Thanks!
Click to expand...
Click to collapse
I've read that the wall charger drops the battery down to 90ish % after it hits 100% and just goes between the two levels until you unplug your charger
While a USB charge is slower and charges your device up to a "fuller" charge
...I may be unfathomably wrong though
---------- Post added at 10:57 PM ---------- Previous post was at 10:56 PM ----------
man that little Apple charger is so damn cute ... lol , ill probably end up buying it once the 1A volt charge is confirmed
edit: just bought it lol, oh well.. it will probably maybe more or less somewhat possibly work like it should at 1A :}
assisterah said:
Just feel like to chime in here for another question.
I know typical USB port from a PC outputs 0.5A while the wall charger outputs 1A, so besides charging time, is there any particular advantages to use wall charger over USB from PC?
I've read somewhere else states that despite the longer charging time using a USB port from a PC, it provides more thorough charges hence is better for the battery than using a wall charger, is this true?
Thanks!
Click to expand...
Click to collapse
I'm not an expert on the subject but I was under the impression that cycles (charge + discharge) were a bigger factor on battery life than something like this. The longer a current is running through the battery (charge or discharge) is detrimental to it's life span.
Leaving a laptop plugged in all the time ruins its battery is my source on this one. I would say it's because it has a constant charge running through the battery.
qreffie said:
I've been doing fine with just plugging it into my computer like I always do with every other phone.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
That takes a lot longer vs plugging it into the wall
rashad1 said:
That takes a lot longer vs plugging it into the wall
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Click to collapse
True dat. Unless it has changed , USB only outputs 500mA.
Sent from my Galaxy Nexus using Tapatalk
[hfm] said:
True dat. Unless it has changed , USB only outputs 500mA.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
500mA is the max before the PC will disable the port. So your actually get less current.
There are some ports, depending on the motherboard that have a option of outputting more power for charging devices, and also have the port powered when the computer is off. But a normal usb 2.0 port is limited to 500mA max per spec... so a normal usb 2.0 port charging a phone is drawing less then 500mA, or it would get and over current condition and disable the port.
I design electronics and work with USB and batteries often, so let me clear some stuff up in no particular order:
- PC ports are limited to 500mA so will only ever output a max of 500mA
- You can use a wall charger that outputs 1000mA but on most devices the data pins on the micro USB need to be shorted to tell the phone it can try to draw more than 500mA. This is true for HTC devices for example. That means if you get a cheap charger that doesn't short the data pins, when you plug your standard micro-usb cable into it, it will still only charge your phone at 500mA.
- The charging controller is actually in the phone. It decides based on temperature (there's a sensor in the battery), current, voltage across the battery (current charge) and characteristics of the type of battery to figure out how much current to allow into the battery. Although its true that a 500mA charger may have different affects than 1000mA chargers, there usually is very little perceivable difference. Which is (slightly) better really depends on the charging controller and how it decides when to stop charging.
- When the battery is full, the phone continues to 'trickle charge' for a period of time. This isn't a bad thing. Overcharging a Lithium battery can be extremely dangerous, so normal charging occurs at a high speed and then slows down at a safe limit below the 'true' 100%. After that the phone continues to trickle charge to top up the battery. This is the reason you read in phone manuals you should charge the phone for 8 hours or overnight for its first charge.
- When charging at 500mA, the battery does not get as hot. This usually means you get closer to the true 100% before 'trickle charging' starts. With a 1000mA charge the battery heats up a lot more so charging may switch to trickle much sooner. Here's an example with made up figures.
Lets say you charge your battery with a 500mA charger, and it takes 2 hours. When the phone shows 100% it may actually be at 99%, and trickle charging. Leaving it for another 30 mins may take it to its full capacity.
Now, lets say you charge your battery with a 1000mA charger, and it takes 1 hour. When the phone shows 100% it may actually be at 98%, and trickle charging - It stopped sooner because the battery was hotter. Leaving it for another 30 mins may take it to full capacity.
Conclusion.. the 500mA charger took 2.5 hours, while the 1000mA charger took 1.5 hours. However if you unplugged both when the phone showed 100%, the 500mA charged battery may last longer, and so you think the 500mA somehow resulted in a more thorough charge!
At the end of the day, it doesn't matter which you use. the absolute charge cycles is what counts. Charge to 100%, then dont charge till its 0 for best battery care. Constantly plugging into a charger or dock all day on and off is bad. But having said that, your phone is there to be used, so a sensible balance of the two is the best bet.
Thank you so much for the detailed response, kam187. Would you recommend avoiding using a 5.1V charger, considering the phone came with a 5V charger?
Sent from my Galaxy Nexus using Tapatalk
I wouldn't use it. The 0.1v probably won't make any difference, but it may not be regulated. Chargers with these odd values sometimes don't have any regulator inside them. That could damage your phone as the voltage could shoot up and down as the current draw changes.
Just search amazon/ebay for any MicroUSB charger, and pick one from a reputable manufacturer like Motorola, HTC, Samsung etc. Since all phones now use MicroUSB, there's loads of these chargers around from previous phone models etc.
Here's just one I saw on amazon.com:
http://www.amazon.com/Samsung-Trave...E70I/ref=sr_1_3?ie=UTF8&qid=1322808220&sr=8-3
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.
Click to expand...
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:
Click to expand...
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)...
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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
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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.
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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
hi guys,
i have two chargers,
1. output 9.0V 1.67A or 5.0V 2.0A
2. output 5.2V 2.4A
and a usb-c cable, in the cable box i find that this cable is supporting for fast charging and support to 2.4A but when i tried it with the two chargers, and test it using 'ampere' app i got max to 1010mA with both chargers adapter ! even with this value i feel it charging my mobile quickly, and in the bottom of the lock screen i see 'charging rapidly' but i want more and why the phone is not charged depending on the values in the chargers (1.67A - 2.0A - 2.4A) and cable (2.4A)
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
You realize slow charging is better for the long-term life of the battery, right?
sublimaze said:
You realize slow charging is better for the long-term life of the battery, right?
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Considering we often get new phones every 2-3 years, you won't see much of a degradation from rapid/fast charging.
Rather, you'll see a degradation from charging from <15% to 100% (which people do often). That will be a more significant reason someones battery will lose much off its lifespan.
I wish Android would have a built in limiter. I'm sure in the next few years, both iOS and Android will.
Strephon Alkhalikoi said:
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
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Click to collapse
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Strephon Alkhalikoi said:
The P2XL charger is 9V, 2A or 5V, 3A. Your amperage values are too low, which may explain why you're not charging as quickly as you should be. The solution: get a charger that equals or exceeds the stock charger ratings.
Click to expand...
Click to collapse
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
Chouiyekh said:
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
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Click to collapse
tbkrazeey said:
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
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Click to collapse
There's nothing I can help you guys with. All I can tell you is what ratings your charger should have, based upon the information printed on the pair of chargers I received with my device when I purchased it directly from Google. If you have a genuine Google charger and the P2XL is still not charging fast, contact Google.
stuff said:
Considering we often get new phones every 2-3 years, you won't see much of a degradation from rapid/fast charging.
Rather, you'll see a degradation from charging from <15% to 100% (which people do often). That will be a more significant reason someones battery will lose much off its lifespan.
I wish Android would have a built in limiter. I'm sure in the next few years, both iOS and Android will.
Click to expand...
Click to collapse
Unfortunately, i hope someone could help
Chouiyekh said:
hi friend,
i bought an original charger for my pixel 2 xl from ebay https://www.ebay.com/itm/113109823570 and after testing it with ampere app i got the same value as my old charger, i got max 1010 mA, and i don't feel that there is a fast charging, it needs to the same time to charge my mobile as my old charger !
please help
Click to expand...
Click to collapse
I thought that charging capped out at roughly 1000 mA when the screen is on to protect the battery from overheating/putting too much strain on it. Which could lead to degradation of the battery. That would explain why you only see 1010 mA on Ampere - because the screen is on. I don't think Ampere measures while the screen is off, so it is difficult to say what value it would be giving you.
That is my experience even using the stock charger that came with the phone.
pemz82 said:
I thought that charging capped out at roughly 1000 mA when the screen is on to protect the battery from overheating/putting too much strain on it. Which could lead to degradation of the battery. That would explain why you only see 1010 mA on Ampere - because the screen is on. I don't think Ampere measures while the screen is off, so it is difficult to say what value it would be giving you.
That is my experience even using the stock charger that came with the phone.
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Click to collapse
maybe your opinion is right. my next experiment is from 0% to 100% with the old charger and with the stock charger, then i will see if there is a difference
tbkrazeey said:
After seeing this I checked accubattery and it also says mine normally charges between 700 - 1010 mah also. I didn't even think about fast charging, I don't have the original charger but I have other "fast chargers" that don't seem to be doing their job either.
Click to expand...
Click to collapse
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
nlinecomputers said:
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
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Click to collapse
That makes sense then, it seems like everything gets more complicated every year.
I just purchased one of these from Amazon. Note that it supports Power Delivery 3.0. This unit quick charges my phone. The Moto Charger I have for my old Moto G5+ which is a Qualcomm charger will charge the phone but only at slow speeds.
https://www.amazon.com/gp/product/B07H6BQNGF/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
nlinecomputers said:
There is one other thing that you must also have. The Pixel does NOT support Qualcomm Fast Charging. It uses Power Delivery, not Quickcharge Technology. So if you have a charger that is labeled QuickCharge or a Moto Turbo Charger you will NOT get fast charging from these units. It has to be a Power Delivery charger with a USB C port and the cable must be USB-IF certified. If you don't have all of that then you don't get a fast charge.
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Click to collapse
i bought this : http://www.ebay.com/itm/113109823570
what do you think ?
If it is really the OEM parts that will work. The pictures look like mine, but ya know eBay....