Abstract: A detector system that utilizes a remote backup power source to provide backup power to a plurality of detectors. The detector system is configured so that if the primary power source, typically a commercially available 110V power source, to one or more of the detectors is cut, the remote backup power source will provide power to those detector(s) lacking power. The remote backup power source can be a rechargeable battery and can be strategically placed in a residence, such as in a utility room or garage, so as to make the battery readily accessible to the residence's occupant(s).