Always when I'm using my S3 with Navigon, it discharges when connected with car charger.
I am using an original car charger by Samsung. Rom is in signature. Temp when navigating is around 48°C.
All of these things just let the discharging cycle last longer, but it is not gone. I know the problem from S2, but nothing helps on my S3. The problem just exists with Navigon.
What I tried:
- different charger
- set CPU freq to max 500 MHz when navigating
- Display brightness to min when navigating
- Set AC in Extweaks from 1000 to 1200 for testing purposes
Any suggestions from experts?
shorty1483 said:
Always when I'm using my S3 with Navigon, it discharges when connected with car charger.
I am using an original car charger by Samsung. Rom is in signature. Temp when navigating is around 48°C.
All of these things just let the discharging cycle last longer, but it is not gone. I know the problem from S2, but nothing helps on my S3. The problem just exists with Navigon.
What I tried:
- different charger
- set CPU freq to max 500 MHz when navigating
- Display brightness to min when navigating
- Set AC in Extweaks from 1000 to 1200 for testing purposes
Any suggestions from experts?
Click to expand...
Click to collapse
I actually have the same issue on both my GS3 and Galaxy Nexus. The problem here is that the car charger is not able to provide charge to the phone at the rate at which it discharges. So it will keep discharging unless you get a charger which can charge at a faster rate (higher the Amp, the faster it will charge).
shorty1483 said:
Always when I'm using my S3 with Navigon, it discharges when connected with car charger.
I am using an original car charger by Samsung. Rom is in signature. Temp when navigating is around 48°C.
All of these things just let the discharging cycle last longer, but it is not gone. I know the problem from S2, but nothing helps on my S3. The problem just exists with Navigon.
What I tried:
- different charger
- set CPU freq to max 500 MHz when navigating
- Display brightness to min when navigating
- Set AC in Extweaks from 1000 to 1200 for testing purposes
Any suggestions from experts?
Click to expand...
Click to collapse
I am having the same problem and I just talked to a buddy of mine (who is an electrician) and he told me that the charger needs to be the exact same volts(not amps) as what the phone/battery needs. If the charger puts out more or even less it could harm the battery and even the phone itself. If I got this right my old charger was working at 500mah I think the s3 is supposed to charge at 1A.(if I'm understanding all this right) I was trying to use my old charger with my new s3 because they both use micro usb and I thought it would work. Well, it does charge the phone but doesn't charge at the rate required thus my phone is discharging faster than it is charging. I hope this helps and sorry if I forgot anything. Btw he has been an electrician for well over 20years. (I want to add I tried to repeat everything like he told me because I personally don't know much on this subject) helpfully someone else can explain it better. Good luck
Sent from my SPH-L710 using xda app-developers app
geargamer said:
I am having the same problem and I just talked to a buddy of mine (who is an electrician) and he told me that the charger needs to be the exact same volts(not amps) as what the phone/battery needs. If the charger puts out more or even less it could harm the battery and even the phone itself. I was trying to use my old charger with my new s3 because they both use micro usb and I thought it would work. Well, it does charge the phone but doesn't charge at the rate required thus my phone is discharging faster than it is charging. I hope this helps and sorry if I forgot anything. Btw he has been an electrician for well over 20years. (I want to add I tried to repeat everything like he told me because I personally don't know much on this subject) good luck
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I would have to agree with circuit89, you need a charger with higher Amps. All usb chargers provide 5 volts. as that is the sub standard, but a standard usb port on the computer is only 500mA, i think the standard charger that comes with the s3 provides 1A, and I think that is the minimum that you need to be able to charge while using gps etc.
A charger with a higher current will no damage the device, it just means it can provide up to that current, so it will provide up to as much as the phone can accept, or it's maximum output.
in short you need a car charger which provides a higher current to charge it faster so it will charge faster than the phone is discharging.
also read here for more info http://www.extremetech.com/computing/115251-how-usb-charging-works-or-how-to-avoid-blowing-up-your-smartphone
if you can pre-cache maps with that app then that would probably help, that is seriously high battery drain, might even be linked to Google maps running in the background, if you are rooted try and freeze maps with titanium before your next journey and see if it helps
Sent from my GT-I9300 using xda premium
electric0ant said:
I would have to agree with circuit89, you need a charger with higher Amps. All usb chargers provide 5 volts. as that is the sub standard, but a standard usb port on the computer is only 500mA, i think the standard charger that comes with the s3 provides 1A, and I think that is the minimum that you need to be able to charge while using gps etc.
A charger with a higher current will no damage the device, it just means it can provide up to that current, so it will provide up to as much as the phone can accept, or it's maximum output.
in short you need a car charger which provides a higher current to charge it faster so it will charge faster than the phone is discharging.
also read here for more info http://www.extremetech.com/computin...ks-or-how-to-avoid-blowing-up-your-smartphone
Click to expand...
Click to collapse
I liked the article. I think it explained it well. The info I got from my buddy was very technical and was probably way more info than I needed but this does bring up another question. What is the highest mah I can use with my s3. I read somewhere on here that it will only change as fast as the phone will allow.
Sent from my SPH-L710 using xda app-developers app
geargamer said:
I liked the article. I think it explained it well. The info I got from my buddy was very technical and was probably way more info than I needed but this does bring up another question. What is the highest mah I can use with my s3. I read somewhere on here that it will only change as fast as the phone will allow.
Sent from my SPH-L710 using xda app-developers app
Click to expand...
Click to collapse
I'm not sure that it is rated at but I've used my ipad charger to charge my S3 (2.1A) and it does charge it pretty fast.
electric0ant said:
I'm not sure that it is rated at but I've used my ipad charger to charge my S3 (2.1A) and it does charge it pretty fast.
Click to expand...
Click to collapse
So if I understand this right your phone should be charging twice as fast( if it using the hole 2.1A) compared to the 1A charger that came with the phone right? Have you checked to see how long it takes to fully charge? I was thinking about buying a 2.1A charger.
Sent from my SPH-L710 using xda app-developers app
Have you tried undervolting? May help a bit. Also increasing charge from usb port.also switch off screen when not needed
Sent via TCP/IP
I have UV with -100mV on all frequency steps. Perhaps I have to say that I'm using the ORIGINAL Samsung S3 car charger with an output of 1A. Also the hint with freezing apps does not work, already tried that one. Because everything I read did not help, I asked the question here :laugh:
When I want to believe BatteryMonitor, I am connected to AC charge with 1000mA, not USB. When looking on the consumption in BatteryMonitor when not connected and running Navigon, 1000mA should be highly enough.
Weird...
Related
I don't know if it's a kernel/rom problem, or a hardware controller that's at fault, but ever since I got this phone charging in car chargers, computer usb outlets, and even alternate wall chargers has been painstakingly slow!
It takes forever to charge, and takes a dedicated powerful wall outlet to even do anything.
Anyone else experiencing this?
The default Samsung Provided Wall outlet charger provides .7A of power, while USB provides .5A of power max. Also what percentage do you charge it at, and can you take a screenshot of your battery usage graph?
The 3rd party chargers that designed for iDevices are not recognized as AC chargers and will be charging at USB mode which is much shower.
Sent from my SAMSUNG-SGH-I777 using XDA App
According to Entropy512, here is the quote:
Improved battery charge algorithm for faster charging - Initial research indicates we have an alternate battery charger chip (MAX8922) that differs from the MAX8997 used in the I9100. We DO have an 8997 also - but on our device for some reason Samsung decided to use an alternate chip instead of using the 8997's built-in charging. This means we have far fewer options (90,400,660 mA) in terms of charge rates compared to the I9100 (from 200 to 950 in 50 mA steps). So we might not be able to implement any fancy charging algorithms.
Click to expand...
Click to collapse
So if I am understanding correctly we were limited to 660 mA at max and unless some way to change it is found, there is unfortunately no use from more powerful chargers .
Battery Charge
Bowsa2511 said:
I don't know if it's a kernel/rom problem, or a hardware controller that's at fault, but ever since I got this phone charging in car chargers, computer usb outlets, and even alternate wall chargers has been painstakingly slow!
It takes forever to charge, and takes a dedicated powerful wall outlet to even do anything.
Anyone else experiencing this?
Click to expand...
Click to collapse
Perhaps you have either a faulty battery or a faulty charger.
Here is a link where you can buy a new battery and wall charger for under 8 bucks for both with free shipping!
Check it out here: http://www.ebay.com/itm/1800m-BATTE...045605?pt=PDA_Accessories&hash=item43aa9a4465
Put your phone in to power saving mode and see if it charges faster.
Other wise exchange it under warranty.
I've experienced that this devices charges significantly slower then my previous devices.
I found it odd when I saw the stock a/c USB adapter outputs at .7mA so i did a starch and found an article out there with a statement from Samsung stating that their devices are designed to charge slow because it's healthier for the battery.
I don't know if the charging current is restricted by some code in the kernel or a physical chip in the main board.
Sent from my SAMSUNG-SGH-I777 using xda premium
It is true that slow charges do increase the overall life of the battery. Also not charging it all the way or discharging it all the way will keep the life of the battery. If you discharge the phone all the way down, it will take much longer to charge than charging it back up from 20% or so.
I got one of these to combat this problem:
http://www.amazon.com/gp/product/B005LGUEE0/ref=oh_o00_s00_i00_details
Even comes with an official battery.
poofyhairguy said:
I got one of these to combat this problem:
http://www.amazon.com/gp/product/B005LGUEE0/ref=oh_o00_s00_i00_details
Even comes with an official battery.
Click to expand...
Click to collapse
Can you please post the output voltage and amperage for the battery charger on that accessory? Should be either on a sticker on the bottom of the device our written in fine print on the charger.
Also just to double check, it does not charge a docked device, just the spare battery?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
fone_fanatic said:
I've experienced that this devices charges significantly slower then my previous devices.
I found it odd when I saw the stock a/c USB adapter outputs at .7mA so i did a starch and found an article out there with a statement from Samsung stating that their devices are designed to charge slow because it's healthier for the battery.
I don't know if the charging current is restricted by some code in the kernel or a physical chip in the main board.
Sent from my SAMSUNG-SGH-I777 using xda premium
Click to expand...
Click to collapse
Physical chip. However on other GS2s and original GalaxyS phones, the chip was fairly controllable by the kernel.
Ours isn't - it has three settings. 90, 400, 660 mA.
fone_fanatic said:
Can you please post the output voltage and amperage for the battery charger on that accessory? Should be either on a sticker on the bottom of the device our written in fine print on the charger.
Also just to double check, it does not charge a docked device, just the spare battery?
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
It is 600mA, and it just charges the spare battery.
I strongly advise against buying third party batteries or chargers. The Galaxy S 2 (AT&T version) uses a battery with NFC technology. Using anything other than an OEM Samsung battery, or an NFC compliant battery could cause damage to your device.
Sent from my SAMSUNG-SGH-I777 using XDA Premium App
Mine isn't third party. All official. Just cheaper thanks to Amazon.
Hey guys
I was wondering , since it takes this phone over 3 hours to fully charge... If I buy a Nokia charger with an output of 1.2 mah ,would it take a shorter time for this phone to charge? Its own charger has 0.7 mah output..
No. SGS2 has a capped charge rate of 650 as far as I know.
----------------------
GTI9100 KK5
yes but it might get hot. i used to charge with playbook's charger all was well. but now i use the samsung S2 charger. but i never checked if it was charging faster
Ok, thank you both
atifsh said:
yes but it might get hot. i used to charge with playbook's charger all was well. but now i use the samsung S2 charger. but i never checked if it was charging faster
Click to expand...
Click to collapse
Charging is controlled by the phone only and varies depending on whether it detects a USB data link or not. And the battery temperature.
So, provided the charger is rated at 700mA or greater, the phone will charge at the fastest rate it sets. On USB, the charge rate is lower. USB 2 ports have a maximum of 500mA output... and if the phone is on, the charge rate is often lowered further.
I use an iPAD2 charger for convenience, which is rated at 2A. The phone charges fine, but only at the same rate as the stock Samsung charger.
LenAsh said:
Charging is controlled by the phone only and varies depending on whether it detects a USB data link or not. And the battery temperature.
So, provided the charger is rated at 700mA or greater, the phone will charge at the fastest rate it sets. On USB, the charge rate is lower. USB 2 ports have a maximum of 500mA output... and if the phone is on, the charge rate is often lowered further.
I use an iPAD2 charger for convenience, which is rated at 2A. The phone charges fine, but only at the same rate as the stock Samsung charger.
Click to expand...
Click to collapse
thanks for the info dont know about S2 but i know few brands allow that. blackberry is one of them, using playbook charger on their phones charge them faster but battery gets hot.
I cant find the exact post to link it for you but I'm sure the devs had a discussion about it in the siyah dev thread.
Mains capped at 600 by the device.
http://forum.xda-developers.com/showthread.php?t=1263838&page=1406
----------------------
GTI9100 KK5
Well, I needed more actual facts than technical stuff. So the idea is not to buy the nokia charger cause the sgs2 wont charge faater. This sucks. HTC evo 3d battery charges to full in abou 1,5 hours and it lasts enough so...I really dont understand samsung
In my ROM there is an option to enable fast charging. If you enable that, a charger with a higher mAh will make sense.
Probably the heat issue is the main reason for not implementing a higher charge rate. Battery degradation world be another.
Sent from my GT-I9100 using xda premium
I don't think you should use a bigger charger with a higher voltage to charge your phone, the battery for your SGS2 might not be able to handle the amount of voltage from the charger
MacBreQ said:
In my ROM there is an option to enable fast charging. If you enable that, a charger with a higher mAh will make sense.
Click to expand...
Click to collapse
Thanks but I prefer stock roms
Wondering if anyone has tried it? I remember reading that the wall charger from my Tab 10.1 was more powerful than for the phones because it would take FOREVER to charge. Wonder if it's compatible with our S3?
Anyone?
I believe that anything that charges on USB is just getting 5 vt, so any charger would work with any phone/tab if it is charging through USB. I would guess that the wall chargers are also putting out 5vt and would therefor be fine with any mini USB plug charging device.
Easy to check, plug it in and see how it works. (Buy insurance first )
Yes,
I have been using my tab 10.1 charger since the first day I got my sgs3.
It DOES charge faster, about an hour for a full charge from <8%
No problems I have noticed, and I am using blazer rom.
Sent from my SPH-L710 using xda premium
gyrra said:
Yes,
I have been using my tab 10.1 charger since the first day I got my sgs3.
It DOES charge faster, about an hour for a full charge from <8%
No problems I have noticed, and I am using blazer rom.
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
An hour, eh? Nice. I thought it would charge faster but not that fast.
And im definitely talking about the using an outlet, not usb.
Thanks for the confirmation!
No problem,
I knew you meant the AC charger, and that's why I posted. USB charging is slow until someone adds in the fastcharge ability to a kernel for our s3's
Glad I could be of help.
Sent from my SPH-L710 using xda premium
Gave you your first thanks!
if this helps i used a blackberry charger and it worked.. i have had no issues.
(DEL)
lostsoul565 said:
if this helps i used a blackberry charger and it worked.. i have had no issues.
Click to expand...
Click to collapse
Not talking about blackberry either. The wall charger for the Tab is more powerful than phone chargers. Thats the only charger im asking about.
tony yayo said:
Not talking about blackberry either. The wall charger for the Tab is more powerful than phone chargers. Thats the only charger im asking about.
Click to expand...
Click to collapse
Any modern device will limit its own current draw to what is needed to do the job. While it is certainly possible for a charger to be underpowered resulting in slower charging it should not be possible for a charger to be overpowered. That is, there is some maximum charge speed the phone is capable of and that limit is expressed as its maximum mA draw. a charger that sources under the max mA will be slower than one that meets or exceeds it. A charger that exceeds the max mA will not charge any faster than any other charger that also exceeds the device's max mA regardless of the differences in their source capacity.
So, if that makes sense to you then you should know it ought to be safe to use a powerful charger and that if faster charging results then the stock charger is in fact underpowered for the device it was paired with.
Disclaimer: Any engineer worth his salt is going to current limit the charging circuit on the phone. However, if this were not the case then providing increased charging capacity will most certainly damage the device.
crabapples said:
Any modern device will limit its own current draw to what is needed to do the job. While it is certainly possible for a charger to be underpowered resulting in slower charging it should not be possible for a charger to be overpowered. That is, there is some maximum charge speed the phone is capable of and that limit is expressed as its maximum mA draw. a charger that sources under the max mA will be slower than one that meets or exceeds it. A charger that exceeds the max mA will not charge any faster than any other charger that also exceeds the device's max mA regardless of the differences in their source capacity.
So, if that makes sense to you then you should know it ought to be safe to use a powerful charger and that if faster charging results then the stock charger is in fact underpowered for the device it was paired with.
Disclaimer: Any engineer worth his salt is going to current limit the charging circuit on the phone. However, if this were not the case then providing increased charging capacity will most certainly damage the device.
Click to expand...
Click to collapse
Basically youre saying the phone itself wont pull in anymore draw than it knows it can handle. So I guess if it does charge faster than great. Long as it dont fry im happy!
I posted this in Perseus thread too, but unfortunately i didn't receive any answers.
Guys, my gf will be getting a 2.1A + 1.0A dual usb charger because her old one died, what is the safe limit for the charging control so i don't fry her S3?
Will it be ok around 1400mah?
Thanks.
I suggest you stick with stock value which is 1000 mA over wall charger and 475 mA over USB.
In theory, yes, the i9300 can take with maximum up to 2100 mA but I'm sure nobody will recommend it.
Sent from my GT-I9300 using xda premium
qtwrk said:
I suggest you stick with stock value which is 1000 mA over wall charger and 475 mA over USB.
In theory, yes, the i9300 can take with maximum up to 2100 mA but I'm sure nobody will recommend it.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
So you think going above 1000mah could be dangerous to the device?
The charger supports 2.1A, or atleast that's what it says.
(When i had an S3 too, i set usb input charge to 850mah because i had usb 3.0 on my pc and it was charging just fine!Don't know if it matters or not though.)
nfsmw_gr said:
So you think going above 1000mah could be dangerous to the device?
The charger supports 2.1A, or atleast that's what it says.
(When i had an S3 too, i set usb input charge to 850mah because i had usb 3.0 on my pc and it was charging just fine!Don't know if it matters or not though.)
Click to expand...
Click to collapse
I know, the chargers for tablets such as iPad has output capacity of 2100 mA.
And I think, stock value set to 1000 mA is for good reason like archive minimum charge time and less dangerous to the device and battery.
One thing I sure is that, if you charge with 2.1 A, your battery will probably heat up like hell, and that high temperature is NOT GOOD for Li-ion battery as we have for i9300.
For myself, I always set it down to 800 mA for over night charging (I guess you won't set up a alarm in the middle of night to wake you up to unplug the charger, will ya? ). And I do use 2.1 A charging, in case of EMERGENCY like I have to go out for long time and my battery is low so I have to make the battery charged as much as I possibly could. But still, it is NOT recommended.
Sent from my GT-I9300 using xda premium
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
todd3835 said:
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
Click to expand...
Click to collapse
U using stock Samsung charger and cable?
Sent from my SCH-I545 using Tapatalk
todd3835 said:
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
Click to expand...
Click to collapse
I've found the stock charger that came with my phone doesn't charge very fast anymore. It will sit around 1.2a but with a new charger with a rating output of 2a I've been getting a charging rate of about 1.9
Sent from my SCH-I545 using XDA Free mobile app
Not gonna lie I have been using the iPad charger with a stock cable and that will get it done quick. Try to back up an oem iPad block off amazon or what not and you will notice a difference.
todd3835 said:
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
Click to expand...
Click to collapse
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
znel52 said:
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
Click to expand...
Click to collapse
How do tell what amps it charges at? All I can find is what the voltage, using 3rd party apps from the play store of course. My phone charges incredibly slow. Especially if I'm using it during the charge cycle. Hours can go by and it just sits there at 5%.
Sent from my SCH-I545 using XDA Free mobile app
zombolt said:
How do tell what amps it charges at? All I can find is what the voltage, using 3rd party apps from the play store of course. My phone charges incredibly slow. Especially if I'm using it during the charge cycle. Hours can go by and it just sits there at 5%.
Sent from my SCH-I545 using XDA Free mobile app
Click to expand...
Click to collapse
This is what I use: https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
Sent from my SCH-I545 using XDA Free mobile app
If you use KT kernel, it shows you in KTweaker the charging current.
Sent from my SCH-I545 using Tapatalk
znel52 said:
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
Click to expand...
Click to collapse
I'm running ktoons kernel without fast charge, and I'm getting 1.9
Sent from my SCH-I545 using XDA Free mobile app
I'm on safe strap so running a custom Kernal isn't possible. I'm guessing I'm seeing the 1.9a when it's initially waking up from the screen off. I've tried the stock cable, as well as the Amazon one that is 1.9a.
Sent from my SCH-I545 using XDA Premium HD app
znel52 said:
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
Click to expand...
Click to collapse
The Fast Charge mode on the KT kernel has no impact on AC charge rate, it only affects USB charge rate:
Normally, when you connect to a PC, you get about a 500ma charge rate and the ability to pass data along. When 'Fast Charge' is set, you lose the ability to transfer data, but the 500ma restriction goes away. In practical terms, it means that you should see between 700ma and 900ma as a result.
w/respect to the OP, my experience is weird. When the device was new, I got around 1800ma on stock charger and cable; now, same setup gets me 900-1200 if lucky (even with new battery). When I tried the stock charger with a different (newer) cable, I get around 1600. It's strange that a cable's ability to carry a charge would degrade so quickly (if that's in fact what's happening).
I have no proof, but absolutely believe that kernel can influence max charge rate, because in the past, I've observed max charge rate drop with the release of a new kernel version, then go up again with another release.
Samsung did slow the charging rate in one of the OTAs. People had been complaining about the phones getting too hot.
Sent from my SCH-I545 using Tapatalk
its weird for me, when i use my qi samsung galaxy charging pad(wireless charging) i get 1.9a, but when i plug the cord in to charge(wired), i get 460mA. wtf??
methodsofbeyond said:
its weird for me, when i use my qi samsung galaxy charging pad(wireless charging) i get 1.9a, but when i plug the cord in to charge(wired), i get 460mA. wtf??
Click to expand...
Click to collapse
What are you using to measure that? Qi isn't capable of charging at 1.9a
The galaxy charging current app..
So you've noticed that sometimes your phone seems to take forever to charge, and other times it seems to charge fine? Let me share some ideas that I've learned through lots of research on this exact subject last year...
I have used the galaxy charging app myself. In my opinion, CurrentWidget is better...looks cooler too. Ha.
So other than software related issues, you need to remember that the speed in which your phone charges is highly dependent on the hardware of 3 things:
1) Power Outlet (including power strips, extension cords, USB extenders, etc.)
2) Power Adapter (I highly recommend Anker's products!!!)
3) MicroUSB Charger Cable (if not using the factory Samsung cable or an Anker one, be sure that it's an 11-pin microUSB, and NOT a 5-pin...they look the same!)
Power Outlets - I know for me, if I use the outlet in my livingroom, it takes SO much longer for my phone to charge than it does in my bedroom. Just try this test! Grab that CurrentWidget app from above and try out some different outlets throughout your house, just to see whether or not the voltage varies. I bet you'll see that this is true!
Power Adapter - You should be using either the factory Samsung charger or a reputable 3rd party charger with the equivalent specifications (5V & 2.1A). However, I actually prefer my Anker charger over my Samsung one! If you're finding that you can't get a good charge, try swapping out your adapter with another one.
MicroUSB Charger Cable - As stated with the power adapter, you should also try to stick with your factory cable if possible. HOWEVER, I have found that to daily connecting and disconnecting of the cable with your phone, they probably receive the most wear and tear of anything else, and therefore may need replacement after some time. Again here, I find that using either my Anker cable or Samsung cable will give me the best charge. This is determined by both the CurrentWidget app and the amount of time it actually takes to get a full charge! Keep in mind that using USB extender cables can drastically lower the voltage to your phone - thus causing a very slow charge.
So basically, I know if I need to charge my phone as quickly as possible, I know I should clear my RAM and recent apps, put my phone on airplain mode, and using my Anker charger, I plug-in at the outlet near my closet door! I figured this all out by using these same ideas I just shared with you! Hope this is helpful!
If you can tell the difference between outlets, you need to call an electrician. Not kidding.
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brizey said:
If you can tell the difference between outlets, you need to call an electrician. Not kidding.
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I doubt that's entirely true. I mean, think of if they're on different circuits, that kind of thing can vary...also, depending on what you have plugged into your outlets can cause lower outputs I'd assume. I'd bet if you used the app I referred to and ran a test at each of your outlets, and reported back here (being honest of course), that you'd see some differences. Anyways, that was far from the point of the post. But thanks for the insight!
calebcabob said:
I doubt that's entirely true. I mean, think of if they're on different circuits, that kind of thing can vary...also, depending on what you have plugged into your outlets can cause lower outputs I'd assume. I'd bet if you used the app I referred to and ran a test at each of your outlets, and reported back here (being honest of course), that you'd see some differences. Anyways, that was far from the point of the post. But thanks for the insight!
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The Samsung power supply is rated for 100 to 240 V @ 0.5 A input. It may be that the power supply is kind of crappy, and varies its output under small variations in input voltage, which is why you see what you see. It really shouldn't...but it wouldn't shock me if it did given that its made for $2 in China. Makes you wonder what would happen if you plugged it into a 240V source. When my wife went to Malaysia last summer to visit her folks, I just put a US to British transformer-less adapter on her Motorola brick and it worked OK plugged into 240V. Maybe the Samsung ones are crappier?
I squared R losses should be reasonably low in household wiring. NEC is 5% drop max at the outlet. And that is like the outlet the farthest from your mains under full rated load. Assuming you live somewhere typical, your voltage at the panel will be 120V+; a lot of time its a few volts over 120. If you have an outlet that is not tripping a breaker go below 100V, you have a problem somewhere. A 20% drop is not normal. Have you put a meter on the outlets with low charge rates?
My friend's OEM s4 charger charges at 1900 ma while my OEM charger only charges at max 1200... Weird how that happens but somehow the cable just stops charging as fast.
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