Aims: Hearing performance among cochlear implant (CI) users is associated with the degree of experience with using the device. Traditionally, this degree of experience is reported as the duration of time elapsed since activation (‘CI duration’). However, this metric ignores variations in hours of device use per day (‘CI frequency’), which strongly influences the overall amount of exposure to auditory stimulation or total cumulative device use (TDU). The aim of this study was to investigate the relationships between different measures of CI experience (CI duration, CI frequency, and TDU) and cortical auditory evoked potentials (CAEPs), as well as post-operative speech perception outcomes. Methodology: A retrospective analysis was conducted on 119 CI users (66 male, 53 female) who underwent post-operative electrophysiological testing for CAEPs. CI experience was evaluated across three metrics: CI duration, CI frequency, and TDU. The presence or absence of CAEP responses was compared between these measures. CAEP waveform latencies and amplitudes were analysed relative to CI experience. Additionally, speech perception test scores in quiet were available for a subset of users and analysed with respect to the same metrics. Results: Significant associations were found between the presence of CAEP responses and both CI frequency and TDU, but not CI duration. When stratified by intracochlear electrode sites (apical, medial, and basal), participants with present CAEPs had higher CI frequency across all sites and higher TDU at the apical and medial sites. No significant correlations were found between CI experience and CAEP waveform amplitudes or latencies. Both CI frequency and TDU significantly correlated with speech perception in quiet test scores. Conclusions: These findings suggest that with respect to central auditory processing and hearing outcomes, CI frequency and TDU are superior measures of the degree of user experience compared to the traditional measure of CI duration.