A method of operating a hearing prosthesis , comprising: operating the hearing prosthesis according to a first mode; determining , by a first computing device , a charge level of a power supply configured to supply power to hearing prosthesis ; estimating , by the first computing device , based on the charge level of the power supply , a first power supply life for operating the hearing prosthesis according to a first mode, estimating , by the first computing device , based on the charge level of the power supply , a second power supply life for operating the hearing prosthesis according to a second mode, wherein operating the hearing prosthesis according to the second mode has a different power consumption characteristic from operating the hearing prosthesis according to the first mode; determining that the power supply life associated with operating in the first and the second mode is less than a threshold for a remaining power supply life; and responsive to determining that the power supply life associated with operating in the first or the second mode is less than the threshold, generating information for providing at least one of a visual indication or an audible indication that the power supply life is less than the threshold, generating information to provide a visual indication of the remaining power supply life associated with the respective first and second operating modes and operate the hearing prosthesis in the first mode, the second mode, or another mode based on a user selection received at a user interface module. operating the hearing prosthesis according to a first mode; determining , by a first computing device , a charge level of a power supply configured to supply power to hearing prosthesis ; estimating , by the first computing device , based on the charge level of the power supply , a first power supply life for operating the hearing prosthesis according to a first mode, estimating , by the first computing device , based on the charge level of the power supply , a second power supply life for operating the hearing prosthesis according to a second mode, wherein operating the hearing prosthesis according to the second mode has a different power consumption characteristic from operating the hearing prosthesis according to the first mode; determining that the power supply life associated with operating in the first and the second mode is less than a threshold for a remaining power supply life; and responsive to determining that the power supply life associated with operating in the first or the second mode is less than the threshold, generating information for providing at least one of a visual indication or an audible indication that the power supply life is less than the threshold, generating information to provide a visual indication of the remaining power supply life associated with the respective first and second operating modes and operate the hearing prosthesis in the first mode, the second mode, or another mode based on a user selection received at a user interface module. generating information for providing at least one of a visual indication or an audible indication that the power supply life is less than the threshold, generating information to provide a visual indication of the remaining power supply life associated with the respective first and second operating modes and operate the hearing prosthesis in the first mode, the second mode, or another mode based on a user selection received at a user interface module. <EOS>