A medical system, comprising: a wireless x-ray detector, including: a functional component which is configured to generate image data according to received x-rays from an x-ray source, a wireless power supply which is configured to power the functional component, a charge level monitor which is configured to monitor a charge level of the wireless power supply and to generate corresponding charge level data, a transmitter which is configured to wirelessly transmit signals carrying the image data and the charge level data from the functional component and the charge level monitor; a host device connected with a receiver which is configured to receive the transmitted signals from the wireless x-ray detector, wherein the host device includes: an image processor which is configured to process the image data received from the functional component, and; a battery analysis means which is configured to analyze the received charge level data and to determine therefrom an estimated remaining operating time of the wireless x-ray detector. a wireless x-ray detector, including: a functional component which is configured to generate image data according to received x-rays from an x-ray source, a wireless power supply which is configured to power the functional component, a charge level monitor which is configured to monitor a charge level of the wireless power supply and to generate corresponding charge level data, a transmitter which is configured to wirelessly transmit signals carrying the image data and the charge level data from the functional component and the charge level monitor; a host device connected with a receiver which is configured to receive the transmitted signals from the wireless x-ray detector, wherein the host device includes: an image processor which is configured to process the image data received from the functional component, and; a battery analysis means which is configured to analyze the received charge level data and to determine therefrom an estimated remaining operating time of the wireless x-ray detector. a functional component which is configured to generate image data according to received x-rays from an x-ray source, a wireless power supply which is configured to power the functional component, a charge level monitor which is configured to monitor a charge level of the wireless power supply and to generate corresponding charge level data, a transmitter which is configured to wirelessly transmit signals carrying the image data and the charge level data from the functional component and the charge level monitor; a host device connected with a receiver which is configured to receive the transmitted signals from the wireless x-ray detector, wherein the host device includes: an image processor which is configured to process the image data received from the functional component, and; a battery analysis means which is configured to analyze the received charge level data and to determine therefrom an estimated remaining operating time of the wireless x-ray detector. an image processor which is configured to process the image data received from the functional component, and; a battery analysis means which is configured to analyze the received charge level data and to determine therefrom an estimated remaining operating time of the wireless x-ray detector.