It is so strange on charging my AK100 MK2 with a Samsung micro-USB 700mAh charger....
I power off my AK100 and plug in the charger, then after a few hours, it keep charging. but when I unplug it and re-plug, it showed charged
May I know how you guys to charge your AK100? with your computer USB?
Sometimes it takes 2-4 seconds for the screen to change from "charging battery..." to "fully charged".
And i'm using the iBasso DX50's provided microUSB cable with my computer to charge my AK100. I have only tried 2-5 times to charge my AK100 from the wall socket with a Samsung S3 charger.