Abstract: The present invention provides a system and method for providing power to electronic devices such as cellular telephones and accessories thereof. A power converter module, which may be either an AC or DC module and which delivers accessory usable power, mates with an accessory module through a pair of mating connectors. By supplying a standard interface between converter and accessory modules, a system of interchangeable modules can be used to produce accessories without duplication of what would otherwise be redundant components. The invention thus provides flexibility and reduces the cost and clutter of prior art systems and methods for powering cell phone accessories.