The problem is the charger works well with my bluetooth keyboard on AC power and off power (feeding from built in battery) but when I connect my Xperia Ray, offline charging mode is useless. İt only flashes its green "feeding" light only a second and goes off. AC charging is working but I bought this piece of c*** for offline charging purposes. I'm using ressurrection rom 4.4 and I'm thinking maybe its because of its kernel. The kernel supports on-the-go which requires the phone to output a certain amount of power from its USB. Maybe electric current from phone forces battery to shut itself? Do you have any ideas or solutions my friends?