Watch suddenly stopped charging ,tried new cables ,power supply even bought a new base. Resets no avail . Software up dateed. Watch charged intermittently and would not be detected in base. Accidently dropped watch on floor , set it on charger and it worked. When it requires charging I have to tap it button side down on counter before placing in charger. Was wondering if this is a battery issue or if not is it worth sending it in for repair. Anyone have an idea as to what could be the problem?