I'm using the factory cable and charger. I've also tried changing it on a tombstone and the same thing happens.
It's been this way since i first instead kk, comings from 4.2.2. I used the tp toolbox, doing a full wipe. I also charged battery past 100 percent and flashed the a6 firmware.
This only happens on kk, I'm running a 4.3.1 rom now and it charges fine.