Battery charger with automatic voltage detection

摘要

A battery charger comprising a pair of battery charger terminals, an automatic voltage detection system for automatically determining a nominal voltage of a battery connected across the pair of battery charger terminals by measuring a first voltage of the battery across the pair of battery charger terminals and, if the first voltage of the battery is less than a first predetermined value, determining the nominal voltage of the battery by measuring a second voltage across the pair of battery charger terminals and comparing the second voltage of the battery to a second predetermined value and a charging system for automatically charging the battery as a function of the nominal voltage determined by said automatic voltage detection system.