I own a Galaxy S2. I have tried it using for navigation many times only to find that the battery discharges fully within 2 hours even if the phone is connected to a car charger. I used to think may be its because my car charger doesn't provide enough current to maintain the charge. But recently I found out the culprit. After around 20 minutes of use, the phone battery starts heating up, and it stops charging. I verified this with CPU-Z. It clearly shows battery overheated, power supply connected and not charging.
I was wondering if S4 also has similar issue. Has anybody used it for more than 2 hours with Google Navigation continuously while connected to car charger?
unni_kmr said:
I own a Galaxy S2. I have tried it using for navigation many times only to find that the battery discharges fully within 2 hours even if the phone is connected to a car charger. I used to think may be its because my car charger doesn't provide enough current to maintain the charge. But recently I found out the culprit. After around 20 minutes of use, the phone battery starts heating up, and it stops charging. I verified this with CPU-Z. It clearly shows battery overheated, power supply connected and not charging.
I was wondering if S4 also has similar issue. Has anybody used it for more than 2 hours with Google Navigation continuously while connected to car charger?
Click to expand...
Click to collapse
The most I have used it for is about an hour and half, and while the phone did heat up, it did continue to keep charging while connected to my in-car charger (just a cheap one). I can't remember whether the charger was able to keep up with the discharge though, I think it did. I was driving in bright sunlight, so I had screen brightness on max throughout that time.
.Astiak said:
The most I have used it for is about an hour and half, and while the phone did heat up, it did continue to keep charging while connected to my in-car charger (just a cheap one). I can't remember whether the charger was able to keep up with the discharge though, I think it did. I was driving in bright sunlight, so I had screen brightness on max throughout that time.
Click to expand...
Click to collapse
I've found that the USB cable can have a big impact on the charging current. I had the same problem with my car charger not keeping the phone charged, even though I was using a 2A charger. When I changed the USB cable I managed to quadruple the charging current (from 300ma to 1200ma) and solved the problem (I measured the charging current using the Galaxy Charging Current Lite app).
HTH
itm said:
I've found that the USB cable can have a big impact on the charging current. I had the same problem with my car charger not keeping the phone charged, even though I was using a 2A charger. When I changed the USB cable I managed to quadruple the charging current (from 300ma to 1200ma) and solved the problem (I measured the charging current using the Galaxy Charging Current Lite app).
HTH
Click to expand...
Click to collapse
In my case, I believe it was not because of the charging current or cable. I was trying with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. When the mobile stopped charging, I checked in CPU-Z app. The app was clearly showing status as "power supply connected, not charging and battery overheated". If I unplug the USB cable and connect it back, it will start charging again!
To make sure that I didn't miss anything, I will try with the app you suggested.
Just to update: The Galaxy Charging Current Lite doesn't seem to work with my Galaxy S2. It doesn't show any value.
Related
I don't actually suffer from battery life problems like some other owners. My problem is that it takes for ever for my phone to charge. My phone has been charging over USB attached to my computer for 8 hours and is only at 83%. When it's attached to the mains it's pretty much the same story. I'm not running any apps. 3G, WiFi and Bluetooth are turned on though.
How can I resolve this problem?
Mister-B said:
I don't actually suffer from battery life problems like some other owners. My problem is that it takes for ever for my phone to charge. My phone has been charging over USB attached to my computer for 8 hours and is only at 83%. When it's attached to the mains it's pretty much the same story. I'm not running any apps. 3G, WiFi and Bluetooth are turned on though.
How can I resolve this problem?
Click to expand...
Click to collapse
well, if plugged into a computer/usb, itll take much longer to charge. are you using the original usb chord? when plugged into a wall charger, how long does it take?
Current draw is about 700mah on average. Battery size is 2100mah. So it should take 3 hours to charge with the wall charger.
USB is another story. If you charge and surf at the same time it will be consuming battery rather than charging.
The problem seems to occur when I don't use the original USB wall charger. Are not all USB chargers the same? When I use the original charger, I don't seem to have this problem.
If WiFi was left on while charging on a computer USB port, would this effect the charging speed?
I usually charge my phone using USB while in the office. At home, I'll use the supplied wall AC adapter.
I've noticed that even though I'm using the AC charger, the stock battery display will show Charging (USB), which is not the case. Power cycling the AC charger usually fixes it to show Charging (AC).
Have also noticed that in some instances when it's plugged into the AC charger, the charging status would switch between "charging" and "not charging". Very obvious in the notification battery icon, where I would see the lightning symbol appear and disappear, about every half second.
I think there's an issue with the AC charger, or maybe it's the charging circuit in the phone?
Anyone experienced something like this before?
Cheers
endlesstrail said:
I usually charge my phone using USB while in the office. At home, I'll use the supplied wall AC adapter.
I've noticed that even though I'm using the AC charger, the stock battery display will show Charging (USB), which is not the case. Power cycling the AC charger usually fixes it to show Charging (AC).
Have also noticed that in some instances when it's plugged into the AC charger, the charging status would switch between "charging" and "not charging". Very obvious in the notification battery icon, where I would see the lightning symbol appear and disappear, about every half second.
I think there's an issue with the AC charger, or maybe it's the charging circuit in the phone?
Click to expand...
Click to collapse
Sounds like a hardware issue. If you want to run the test yourself, you can try swapping the charger with another OEM Nexus 4 charger (don't try to get around this). But I'd contact Google about this if I were you.
Might be the stock charger if thats what your using i had the same prob and sometimes but battery would either stay on the same percent for a while or go down so chanhed the charger and its been working fine ever since i still use the stock box charger i just changed the cord
NEXUS⁴
casonswag said:
Might be the stock charger if thats what your using i had the same prob and sometimes but battery would either stay on the same percent for a while or go down so chanhed the charger and its been working fine ever since i still use the stock box charger i just changed the cord
NEXUS⁴
Click to expand...
Click to collapse
^ this...
i had similar issue..when plugged it shows charging/discharging..if charging it will be slow as hell..swap cable all good..
throw away the original cable try a different one..
Thanks. Will give it a shot and see how it goes.
Do you guys think this is a charging issue? Temp is very high but still continues to charge at AC level. I have switched out my power bricks and cable but still have the same result.
Noctus Nosfuratsu said:
Do you guys think this is a charging issue? Temp is very high but still continues to charge at AC level. I have switched out my power bricks and cable but still have the same result.
Click to expand...
Click to collapse
It is due to temperature I believe. I have observed this behavior closely for a long time, so I'm almost certain this is the cause. I've seen it on the Galaxy Nexus and the Nexus 7. I can't tell you offhand the exact temperature they stop charging at, but I can tell you it's most likely between 50°-60° Celsius. You've got to let your devices cool off. It may be a pain, but it protects your hardware, so when it stops charging, your phone is saying "Hey partner, you think you could let me cool down for just a second? Is that too much for you or what? What's your problem, you dingdong?"..
... Or something like that. If that's not exactly what it says, it's very close.
myepicyear said:
It is due to temperature I believe. I have observed this behavior closely for a long time, so I'm almost certain this is the cause. I've seen it on the Galaxy Nexus and the Nexus 7. I can't tell you offhand the exact temperature they stop charging at, but I can tell you it's most likely between 50°-60° Celsius. You've got to let your devices cool off. It may be a pain, but it protects your hardware, so when it stops charging, your phone is saying "Hey partner, you think you could let me cool down for just a second? Is that too much for you or what? What's your problem, you dingdong?"..
... Or something like that. If that's not exactly what it says, it's very close.
Click to expand...
Click to collapse
Ah I see. Anyways, I have used my cousins nexus 4 and every time the temp goes over 38 degrees, the charge rate drops down to USB. Mainly why I asked haha. Yah its a pain from time to time LOl
dzel said:
^ this...
i had similar issue..when plugged it shows charging/discharging..if charging it will be slow as hell..swap cable all good..
throw away the original cable try a different one..
Click to expand...
Click to collapse
Same here. Worked out for me it was a dodgy cable. Using the supplied cable through a laptop, I will also from time to time get the plugged/unplugged notification on the computer, which being audible made me realize how often it was happening.
The supplied charger brick now seems to work flawlessly with a different cable (ie, always says AC, no odd charging/not charging behaviour, etc).
Try that and see how you go.
I guess it's the cable. I've tried using a generic ebay cable and it appears to be working fine now.
What sort of mA values are you getting when using the stock AC charger?
Battery Monitor widget says that the phone's only getting around 500mA when I believe it should be getting more than that. I've enabled the USB fastcharge in the options. and have left everything at default. This is after waking up the phone from standby. Keeping the screen on drops the charge rate to 200mA thereabouts.
No music playing, 3G and connected to a wifi access point.
My S4 has developed a problem where it seems to stop charging overnight, leaving me with a low battery in the morning. When I plug it into the charger the red light comes on, but when I return in the morning it has stopped charging and the battery has lost 20% of its charge.
A different USB cable, plugged into the same charger, seems to be charging it for now. Does this mean that the original cable is faulty, or do I need to get the USB connector on the phone checked out?
itm said:
My S4 has developed a problem where it seems to stop charging overnight, leaving me with a low battery in the morning. When I plug it into the charger the red light comes on, but when I return in the morning it has stopped charging and the battery has lost 20% of its charge.
A different USB cable, plugged into the same charger, seems to be charging it for now. Does this mean that the original cable is faulty, or do I need to get the USB connector on the phone checked out?
Click to expand...
Click to collapse
Maybe there is overheating problem so phone stops charging process. Try to start charging and observe it. When it stops charging again, check if it is hot.
Diamond 2 owner said:
Maybe there is overheating problem so phone stops charging process. Try to start charging and observe it. When it stops charging again, check if it is hot.
Click to expand...
Click to collapse
Seems to be, i've noticed this myself too on days my room is very hot. Ever since i've undervolted a little it hasn't happened again.
Sent from my GT-I9505 using xda app-developers app
Kenablo said:
Seems to be, i've noticed this myself too on days my room is very hot. Ever since i've undervolted a little it hasn't happened again.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
First make sure that phone is placed on clean, flat surface with good air flow. Worst case is placing it on bed, blanket or pillow - it will overheat for sure.
Undervolting will not help a lot, as it only affect CPU/GPU heating, while they are usually idling during charging. Main source of heat in that situation is not a CPU/GPU but charging itself.
If you have really high room temperature, and you can do nothing about it, than you can slow down charging process, so it will decrease charging heating. Just use regular USB port (computer or generic USB charger) instead dedicated Samsung S4 charger. Charging current will be decreased from 1.9A to 500mA.
If you want to have more control over charging and temperatures you could install Battery Monitor Widget Pro (https://play.google.com/store/apps/details?id=ccc71.bmw.pro). See example of data which you can got with on wireless charging thread: http://forum.xda-developers.com/showpost.php?p=43224425&postcount=1018
My battery temperature goes up to 35C during charging (wireless charging).
The theory re. heat is interesting, but doesn't seem to explain why switching USB cables fixed the problem immediately in this case. Is the S4 particularly sensitive to the fit of the USB cable in the socket??
itm said:
The theory re. heat is interesting, but doesn't seem to explain why switching USB cables fixed the problem immediately in this case. Is the S4 particularly sensitive to the fit of the USB cable in the socket??
Click to expand...
Click to collapse
No, S4 is not particularly sensitive to the fit of the USB cable in the socket.
Keep in mind, that max charging current on S4 is based on detection routine which tries to figure it out what is phone connected to (is it regular USB port specified for up to 500mA or dedicated 2 amps charger). It is necessary to accomplish down compatibility with generic USB hosts (you can connect S4 to every USB device) and fast charging feature (less then 2h charging time).
So, you can say, that S4 is sensitive to USB cable/device type. Switching from dedicated cable/charger to 3rd party, could decrease charging current and generated heat.
I hope, this theory explains all your doubts
Diamond 2 owner said:
No, S4 is not particularly sensitive to the fit of the USB cable in the socket.
Keep in mind, that max charging current on S4 is based on detection routine which tries to figure it out what is phone connected to (is it regular USB port specified for up to 500mA or dedicated 2 amps charger). It is necessary to accomplish down compatibility with generic USB hosts (you can connect S4 to every USB device) and fast charging feature (less then 2h charging time).
So, you can say, that S4 is sensitive to USB cable/device type. Switching from dedicated cable/charger to 3rd party, could decrease charging current and generated heat.
I hope, this theory explains all your doubts
Click to expand...
Click to collapse
Thanks for the explanation - it certainly does help. It looks as if the flaw may be with the detection routine, which was preventing it from charging when connected to the stock charger/stock cable, but was happy to allow it when using a different cable with the stock charger.
It also explains another anomaly - when using the S4 as a Sat Nav in the car with a TomTom High-Speed multi charger the phone will only charge if the screen is turned off. With the screen on it actually loses charge.
Is there any way to "hack" this logic to eradicate these anomalies and ensure that the phone charges when you want it to? Or could it be that there is actually a fault with my phone that needs to be checked out?
I suspect this may not be normal...I've just plugged the phone into the stock charger/cable. The phone/battery are not remotely warm, but the phone isn't charging, even though the battery icon in the notification bar says that it is (there's a lightning bolt in the battery icon but it just lost 1% charge in 2 mins with the screen turned off).
The LED went red when I first plugged it in, but the red light went out after a minute, although the lightning bolt remained in the battery icon in the notification bar.
???
itm said:
I suspect this may not be normal...I've just plugged the phone into the stock charger/cable. The phone/battery are not remotely warm, but the phone isn't charging, even though the battery icon in the notification bar says that it is (there's a lightning bolt in the battery icon but it just lost 1% charge in 2 mins with the screen turned off).
The LED went red when I first plugged it in, but the red light went out after a minute, although the lightning bolt remained in the battery icon in the notification bar.
???
Click to expand...
Click to collapse
At this point it sounds like you have a defective battery/phone Anyway, here's a sample test you can try:
Get this app: Galaxy Charging Current Lite
With the stock charger/cable you should be seeing (remember to keep refreshing):
- Not charging - -
- Screen on - 1200 mA
- Screen off - 1900 mA
(yes, there's a difference in the charging current depending on whether the screen is off or on)
Plugged to a standard USB port: 460 mA
Plugged to a car charger - depends on the output of the charger - most car chargers are 1A these days
Try with different cables plugged into a PC USB port - you should be getting a constant 460 mA charge. If it stops as described and you tried a few cable it's likely the battery/phone. HTH
Breach1337 said:
At this point it sounds like you have a defective battery/phone Anyway, here's a sample test you can try:
Get this app: Galaxy Charging Current Lite
With the stock charger/cable you should be seeing (remember to keep refreshing):
- Not charging - -
- Screen on - 1200 mA
- Screen off - 1900 mA
(yes, there's a difference in the charging current depending on whether the screen is off or on)
Plugged to a standard USB port: 460 mA
Plugged to a car charger - depends on the output of the charger - most car chargers are 1A these days
Try with different cables plugged into a PC USB port - you should be getting a constant 460 mA charge. If it stops as described and you tried a few cable it's likely the battery/phone. HTH
Click to expand...
Click to collapse
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
itm said:
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
Click to expand...
Click to collapse
I just tried a few different USB cables with the stock charger - these gave me interesting results:
- Cable 1 : 1200
- Cable 2: 1200
- Cable 3: 420
So maybe it's the stock cable that's the problem?
itm said:
Thanks. The Galaxy Charging Current Lite app shows:
- Connected to stock charger, screen on, with stock battery: a steady 340
- Connected to stock charger, screen off, with stock battery: 380
- Connected to PC USB port, with stock battery: 460
- Connected to car charger, with stock battery: 500
- Connected to stock charger, screen on, with 3rd party battery: a steady 300
Can I assume from the above that the phone is faulty?
Click to expand...
Click to collapse
Actually it looks like more of a problem with your stock charger (as you're getting normal charge from a USB port)!
- Are you using the same cable with your stock charger, when connected to the PC USB port and your car charger? Try a different cable in all this scenarios to rule out the cable as a factor.
- What I'd recommend is to find another stock charger - go to a Samsung shop / service center - ask to test on site and see what input your phone is getting. You may test with any other mains charger but as you need to be sure of the power it delivers I'd test with an official Samsung 2A charger. If you don't get 1200/1900 with another official charger (and a working cable) then it's an issue with the phone/battery.
Re your car charger. It's possible that your car charger is 500 ma only (check the writing) if it's 0.5 A you need a new one (get a 2A one). Is it a real 12V cigarette charger or are you plugging the cable in a USB port on your car?
---------- Post added at 12:15 PM ---------- Previous post was at 12:11 PM ----------
itm said:
I just tried a few different USB cables with the stock charger - these gave me interesting results:
- Cable 1 : 1200
- Cable 2: 1200
- Cable 3: 420
So maybe it's the stock cable that's the problem?
Click to expand...
Click to collapse
There you go I fried two old cables already so not all of them can sustain the 2A charge. Use Cable 1 or 2. Make sure it also charges at 1900 ma - plug it in, open the app, refresh so that it shows 1200 ma. Turn the screen off. Give it 5 seconds (red led should turn on). Turn the screen back on. immediately refresh - you should see 1900.
I'm getting 1200/1900 from the stock charger if I use "Cable 1" or "Cable 2" as referred to above, so I guess that indicates that the charger is OK? (the stock cable only gives 300 from the same charger)
I'm surprised that I can only get 500 from the car charger using Cable 1/2, as it is advertised as having a 2amp port. In fact I get a higher charge rate (740) using the "slower" port on the TomTom charger - i.e. the port labelled "high-speed" actually delivers less current.
???
Yes cable 3 has gone bad. You should be good with the others.
Re the car charger - is 500 all you get with cable 1 or 2? Is the charger rated 2A for Android phones? Note that some high current chargers are high current only for Apple products and default to much lower output with non Apple products. It can also be a bad charger.- I had a defective 2A Anker car charger which wouldn't charge above 760. I RMAed it and the replacement works as intended.
Sent from my GT-I9505 using xda app-developers app
Breach1337 said:
Yes cable 3 has gone bad. You should be good with the others.
Re the car charger - is 500 all you get with cable 1 or 2? Is the charger rated 2A for Android phones? Note that some high current chargers are high current only for Apple products and default to much lower output with non Apple products. It can also be a bad charger.- I had a defective 2A Anker car charger which wouldn't charge above 760. I RMAed it and the replacement works as intended.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
I can get 1200 from the car charger with Cable 1. It's rated at 2A for TomTom devices.
Now this is bizzarre...I just took delivery of a brand new Nexus 10 and immediately tried the charger and cable from that with the Galaxy S4 - I only got 300ma. Can this really be coincidence??
Yes, weird. What about the the other way around - not sure whether the app will work on the Nexus but you can try. Try the S4 charger and cable with the Nexus.
Sent from my GT-I9505 using xda app-developers app
Breach1337 said:
Yes, weird. What about the the other way around - not sure whether the app will work on the Nexus but you can try. Try the S4 charger and cable with the Nexus.
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
The Galaxy Charging Current App doesn't work on the Nexus 10 for some reason - it doesn't respond to a charger being connected to it
Can Samsung really be shipping dodgy cables on a mass scale?
itm said:
The Galaxy Charging Current App doesn't work on the Nexus 10 for some reason - it doesn't respond to a charger being connected to it
Can Samsung really be shipping dodgy cables on a mass scale?
Click to expand...
Click to collapse
I doubt it. No surprises that the app doesn't work on non-Galaxy devices.
By the way how did you try the cable from the Nexus? Isn't is a pogo cable (the wider one)?
Breach1337 said:
By the way how did you try the cable from the Nexus? Isn't is a pogo cable (the wider one)?
Click to expand...
Click to collapse
No it's a standard Micro USB.
itm said:
No it's a standard Micro USB.
Click to expand...
Click to collapse
If you get the same low charge rate with the Nexus charger/cable I'd take it to Samsung and show them the charge rate you're getting. Even if it works with another cable something is definitely not right - let them figure it out.
Hello community.
I am experiencing this problem since around three weeks. My Nexus 7 won't charge with full speed, I even think it is only charging with lower than the half of the rated 2 amps of the stock charger, or even less. As you can see in the attached screenshot, it behaves like it is receiving zero to none power, but the status sais it is in fact charging... I am using CoolTool to monitor the charge rate. While the screen is on and my tablet is just sitting there idle, it is "charging" with about -50mA (slowly discharging) and while watching youtube videos, it discharges with about 450mA. While the screen is off, it actually charges with arond 400mA MAX. While I was typing this it discharged with around 300mA.
I have not checked the resistance of the stock charger nor the cable, and I have yet to try making myself another fastcharge cable.
I am using the stock charger with the stock charging cable, and I recently upgraded to the latest SlimRom and FauxKernel.
Is this some kind of software failure or is my tablet/charger/cable broken?
Is someone experiencing similar problems?
(I have problems uploading pictures, google drive must be sufficient)
https://docs.google.com/file/d/0B3NjKaD9eYHeUFg3RVhEdk4xNTQ/edit?usp=docslist_api
https://docs.google.com/file/d/0B3NjKaD9eYHeVnh6ZGswVGNpS1E/edit?usp=docslist_api
All i can think of is ur using low amp charger try using official 2.1amp charger that came with the device.
Please ignore my spelling mistakes. English is not my native language.
Does anyone else have any experience with Qi wireless charging receivers for the S4? I bought one from eBay at the end of last year (item no
151128038769), and it was fine for the first few months, but now it doesn't seem to charge the phone at all. I get a popup message when the phone is placed on the correct part of the charging mat (although this message doesn't always pop up as reliably as it used to), and the charge indicator displays in the notification bar, but if I return to the phone half an hour later it has actually lost charge.
I've tried this with two different charging pads, from two different manufacturers, and neither charges the phone, even though the phone gives the impression that it is being charged when I first place it on the mat. Charging using a cable still works fine.
I was wondering whether others had experiences of wireless charging?
Update: I just checked the charge status with the Galaxy Charging Current Lite app. When the phone is on the pad the charging current shows as 640mA (which should be enough to charge?), but the phone is actually losing 1% of its charge every few minutes.
???
are you using an adapter cover or a connector for the qi charging?, maybe they're not aligned well
also,i just checked and i get 460mA via simple usb/PC charging. and it's still charging. (really slow, but charging.)
yonye87 said:
are you using an adapter cover or a connector for the qi charging?, maybe they're not aligned well
also,i just checked and i get 460mA via simple usb/PC charging. and it's still charging. (really slow, but charging.)
Click to expand...
Click to collapse
I'm using a receiver insert. It sits on top of the battery, and has a flap which covers the charging terminals higher up the phone. I'm more than happy with 640mA as I usually charge it overnight. I just don't understand why it's losing charge instead of charging.
if it's charging with 640mA, but still your phone is discharging, then maybe your phone is draining the battery.
try to close everything, such as wifi, GPS, mobile data etc. and then check if it's still not charging.
also, you can try changing to a a different receiver, if you have one
btw, what about normal charging? does it charge normally?
yonye87 said:
are you using an adapter cover or a connector for the qi charging?, maybe they're not aligned well
also,i just checked and i get 460mA via simple usb/PC charging. and it's still charging. (really slow, but charging.)
Click to expand...
Click to collapse
yonye87 said:
if it's charging with 640mA, but still your phone is discharging, then maybe your phone is draining the battery.
try to close everything, such as wifi, GPS, mobile data etc. and then check if it's still not charging.
also, you can try changing to a a different receiver, if you have one
btw, what about normal charging? does it charge normally?
Click to expand...
Click to collapse
Yes it seems that there's something that's draining the battery faster than the Qi pad can charge it. I've tried a reboot but it made no difference.
"Normal" charging using a USB cable is fine (and quick). I've just set up the Better Battery Stats app to see what's causing the drain while it's on the charging pad.
I don't have another charging receiver to try (only another charging pad, which exhibits the same behaviour)