Help me understand micro usb cables and slow charging
I have been having trouble recently with my galaxy s3 charging extremely slowly. Every since the OEM cable broke, I have tried to find replacements that charge at 1amp. The only cable that does this is the monoprice premium micro
usb cable 6ft, but it breaks quite easily. I have also tried the 28awg 6ft monoprice cables, which were pathetic and charged at 100ma. This was all plugged into the OEM 1a wall charger fyi.
I have heard that the 24awg cables with ferrite core charges at a full 1 amp because the cables are thicker, but what I don't understand is that the OEM and premium monoprice cables both charge at 1100mah but are really thin compared to even the 28awg cable. The OEM and monoprice cables don't have specifications printed on them. I had always thought that generic usb cables were the same as OEM cables, and would charge at the same speed, unless there's something wrong with my micro usb port or phone.
I have tried looking for solutions but the answers on most forums are people asking why their phone charges slow when it is plugged into a usb port, and everyone just replies that the usb port output is limited to 500mah, but I am using the oem ac adapter and it's still slow. Only the premium monoprice cable charges full speed but its very poor in quality, the rubber cable separates from the plastic micro usb head, and it breaks. I have had 3 of these premium cables break in less than a weak and only 1 of them works, for now.
Is it my phone's micro usb port? I tried charging it using CM10.1 as well as Touchwiz 4.1.2, but they all charge slowly from the generic cables so it can't be the rom. I don't remember having any of these problems when I first bought the phone on ICS, and I don't see many posts on slow charging.
Is there a cheap, reliable cable that charges at a full 1 amp out there? Most people I've seen had suggested monoprice cables but their 6 foot micro usb cables have changed recently and are really, really bad. I guess the ferrite core cable might work, but I have yet to try it, and I am not fond of the idea of a thick 24awg cable and a big ferrite core sticking out of my phone.