A Radio Transceiver is described herein, which according to one embodiment, includes a solar panel, a battery and an advanced power management circuit operably connected to the solar panel and the battery. The advanced power management circuit is configured to receive electrical energy from the solar panel and the battery. A supercapacitor is operably connected to the advanced power management circuit and configured to receive electrical energy from the advanced power management circuit. A communications module is coupled to the supercapacitor. The Radio Transceiver can be powered by measuring a supercapacitor voltage using the advanced power management circuit; determining whether the supercapacitor voltage is above a first threshold voltage and below a second threshold voltage; and charging the supercapacitor using at least one of the solar panel and the battery based on whether the supercapacitor voltage is above the first threshold voltage and below the second threshold voltage.