A power system and method for supplying power to a wireless X-ray detector utilizes a detachable handle for a wireless X-ray detector. The handle carries a battery which, when the detachable handle is coupled to a wireless X-ray detector, provides the wireless X-ray detector with a mobile supply of power. A detachable handle charging station may recharge a plurality of detachable handles, providing a swappable supply of power for a wireless X-ray detector. Charging stations for such handles, or for entire detectors are also disclosed.