Study of Gemini Rechargeable Spinal Cord Stimulation (SCS) System

Inclusion Criteria: 1. Subject is indicated for an SCS system, or has an implanted SCS system and is scheduled to receive an IPG replacement. 2. Subject is scheduled to receive a new IPG permanent implant and has completed a successful SCS trial in the last 6-months, OR subject is scheduled to undergo an all-in-one procedure OR has an implanted SCS system for an approved chronic pain indication. 3. Subject has a documented NRS pain score of ≥ 6 after at least 5 days without stimulation OR has an implanted functioning SCS system with NRS pain score of ≤ 4. 4. Subject must provide written informed consent prior to any clinical investigation-related procedure. 5. Subject is at least 18 years at the time of enrollment. 6. Subject is capable and willing to recharge an implanted IPG. Exclusion Criteria: 1. Subject's SCS trial was unsuccessful. 2. Subject is currently participating, or intends to participate, in another clinical investigation that may confound the results of this study, as determined by Abbott. 3. Subject has or will receive more than one IPG. 4. Subject is pregnant or breastfeeding or plans to become pregnant during the clinical investigation follow-up period. 5. Subject has other anatomic or comorbid conditions, or other medical, social, or psychological conditions that, in the investigator's assessment, could limit the subject's ability to participate in the clinical investigation. 6. Subject has or is scheduled to receive an intrathecal pump. 7. Subject is part of a vulnerable population.