Hmmm this is getting stupid now, I charge it up trying to calibrate it, and the red light goes out (mains charging) to indicate the battery is full. So i pull out the charger, but then i put it back in and it starts charging again, not just for 2 minutes...but it's been going 30 minutes now. I think im just gonna try and get a replacement, does anyone know how to go about this? Anyone been successful in getting a replacement?