Abstract: A power source having a housing is disclosed. A first power cord extends from the housing. The first power cord has a first connector positioned at a distal end thereof for selective connection to an external power source. A second power cord extends from the housing. The second power cord having a second connector positioned at a distal end thereof for selective connection to an electronic device. A power adapter is connected between the first and second power cord. Upon connecting the external power source, the power adapter detects the presence of and receives external power through the first power cord and transfers power to the electronic device through the second cord. The power adapter also retains a charge therein for providing power to the electronic device when no external power source is detected.