Originally Posted by PPS
Thanks for the advice. I allowed the phone to drain till about 15%. After that i have put it on charging.
In the past 4hrs it has gained about 72% battery. So i'm assuming the phone is back to normal now?
Whenever something goes wrong with the phone, i get an anxiety attack!
Originally Posted by promit
Sorry mate, the rate of charge is definitely not what it should be. A 57% gain in 4 hours isn't normal man. Trust me. Observe and see how it goes for the next week or so and then have it checked. Initially this problem crops up like this and gets worse.
Also, try and fiddle with the part of the wire which goes into the phone. like shift and twist it a little like you would when there is a loose connection and see if it makes a difference? That's how I charge my bloody phone everyday, hit and trial basis.
OT- I don't get anxiety,I abuse the hell out of Samsung in my head and remember all those who told me to avoid the S3 because of build quality.
that aside, its a great phone.
Originally Posted by Eddy
A friend of mine faced a similar problem with his Note 2. Turned out to be a faulty USB/charger wire.
Originally Posted by ampere
A charger connecting to the device Via USB2.0 cannot pump more 500mA. Because thats the max rating for USB2.0. (1 unit of 100 mA and a max of 5 units I think). So they may not even make a 2A charger because USB interface wont be able to handle it. USB 3 I think handles a max of 900mA. (6x150)
Thats why many of those big portable hard disks have multiple USB2.0 connections, which are slowly changing to single USB3 connection. But if you have multiple USB connections, then what you say is true. But in phones, its only a single USB connection.
I have a Note 2 from November 2012. Had absolutely no complaints with it till last month. Its so fast and pretty much did everything I wanted - So, I did not even root it (I generally root phones like a week after buying)
Faced very similar charging issue sometime last month. The charging had become slow. Slow meaning *extremely* slow. What used to take 2 or 2.5 hours now used to take close to 7 or 8 hours for full charge - This with the proper 2 amp charger and not the USB charging which is 4 times slower (500ma max current output). I never charge using USB since it just eats a lot of time.
Tried to find the cause for it. I never doubted the cable initially. Thought the main charger had a problem. Tried with a friend's 2 Amp note 2 charger (with his own cable). It still had the same problem. *Mistake number 1*
Downloaded the galaxy current lite app and it showed that the charge current is 300 ma when its connected to the charger. (Got to know online that this should ideally be around 1700 mah for the note 2 with the 2 amp charger).
I straight away decided that there is some problem with my phone coz it can't happen that it charges slowly with 2 different chargers. Did a reset of the phone and tried again. No use. The problem persisted. Went to the galaxy service center at the Dreams Mall in Bhandup (Mumbai), they tried with a different charge cable and still the problem persisted. So, they said they are going to replace the charging module and give it back. Took a whole of 8 days and numerous calls and escalation to get in 8 days - Samsung service is totally screwed up. Have owned an Iphone and HTC product before this, had a much smoother experience with them whenever I had problems.
The reasons they quoted for delay was even funnier - Part is not available! Remember that this was before the Note 3 release and was then a top of the line Note product. When I spoke to escalation team, they understood where I was coming from and stopped giving all the funny reasons - Part not available / Coming from Chennai so would take time. The best part is, I made the call to the escalation team when the service center guy said there is no part available on the morning of the 8th day. And, the phone was ready by evening!
Did not bother to check if it was working fine at the service center coz I was just so relieved to get the phone back. Came back home and yeah, the problem was still not solved! After all that circus, I was back to square one.
Went to my friends room again to try different combinations of charger / charge cable that would pin point the reason (He has a note 2 too). Lo and behold, I came to conclusion that my friend was having the same problem as mine. He is not such a tech guy and never bothered to notice it all the while! He said he used to put his phone for charge for 7 or 8 hours overnight and it would run the whole day. He doesn't use many apps or data throughout the day as well. So, it didnt really hurt him to notice the problem. Remember *Mistake number 1*. Well this was it. I cursed myself for not trying these combinations out the first time!
Then I goto another friends room in a hope of finding something. He has a motorola with a 800 mah charger, but, that cable of Motorola looked really sturdy and thick - Much thicker than the Samsung default one. I used that cable with my charger and finally - 1700 mah reading on the galaxy current app. I went bonkers.So, it was after all a cable problem.
But wait, I tried my samsung cable on his phone and there was no difference in charging rates with his default motorola cable and my samsung cable (the one which I thought had conked off). I exchanged the cable with him and am till today using the same cable of Motorola!
If it was actually a cable problem, why wasn't it detected when the service center guy swapped the cables? I wondered. So, when I was in Bangalore and had some free time, I went to many shops trying out multiple micro usb charge cables. Out of the 7 or 8 different ones I tried, I got only one cable which charged at 1700. The rest would top off at 1100, 800, 900 odd. I really don't know what's going on. I did not pick up that one cable that charged at 1700 since the price he quoted was insanely high. (He knew I was impressed with the cable)
Came home and searched for cable on ebay. There are tons of them. Saw a seller selling a flat micro usb cable. He had high ratings and was a power seller and he claimed that the cable was for Note 2 and S3. 150 bucks. I thought ill give it a try. The cable looked good, but, when I put it to charge, same old problem, charges at 700 mah max. I got bugged and stop bothering about buying a new one. I still use the Motorola cable and my friend uses my Samsung one. I have also told him that I am not giving that Motorola cable back anytime soon and if he wants he can use the flat cable I got from ebay as well