A typical low power IoT application with the Hiberband modem integrated will have an expected battery life of at least 10 years. Please note that battery life depends on many factors and that the Hiberband modem is not delivered with a battery.
Due to the unique Hiber protocol, the Hiberband modem is in sleep mode most of the time. It wakes up the moment the satellite passes overhead to communicate and transmit the collected data. This makes the power consumption 5 to 15 times more efficient than existing direct-to-satellite networks and comparable to the power consumption of terrestrial LPWAN networks like SigFox, Lora and NBIoT.
For the exact details on the power consumption of the Hiberband modem, please refer to the datasheet.