Electric power supply providing device i.e. backup battery charger, for mobile telephone in e.g. airport, has connectors connecting conversion units to output and extended by cables ended by other connectors with one of telephones

摘要

The device (10) has a rectangular section vertical frame (16) comprising a switching unit (11) under the form of a socket for switching external electric power supply. An electric power supply conversion unit (12) i.e. voltage converter, providing rectified current at low voltage for charging mobile telephones is formed of different models. Electrical connection elements (17) comprise connectors for connecting the conversion units to an output, and are extended by cables (19) ended by other connectors (20) that are cooperated with one of the mobile telephones.