Abstract: An exemplary method includes a sound processing unit 1) directing an implantable cochlear stimulator coupled to a plurality of electrodes to generate an electrical stimulation current in accordance with one or more stimulation parameters, 2) automatically detecting an impedance of at least one of the electrodes, and 3) directing, in accordance with the detected impedance, the implantable cochlear stimulator to adjust a pulse width of the electrical stimulation current to maintain constant a total electric charge level of the electrical stimulation current.