Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; charging systems for battery operated appliances, battery chargers; chargers for electric batteries, electric battery chargers; power supply devices for battery chargers; battery charge indicators; electrical charging apparatus; electronic docking stations; mobile phone chargers; electronic docking stations for use with tablet computers; audio players including MP3 and MP4 players, mobile phones, smart phones and audio headsets; portal charging docks for tablet computers, audio players including MP3 and MP4 players, mobile phones, smart phones and audio headsets; electrical and electronic connectors, couplers, wires, cables, chargers, docks, docking stations, interfaces, and adaptors for use with all of the aforesaid goods.