You need to first determine if his Cpap will operate on 12 volts. If it won’t you will need to insure the boat has an inverter. If it has an inverter you should be fine if the battery bank is in good shape. Be warned however that charter boat batteries get abused by over discharge and are often not in the best shape.
Edit: It does not appear the 41 has an inverter. It’s possible Sunsail has not updated their website. I would give them a call.

Last edited by GeorgeC1; 02/26/2025 11:35 AM.