In case this helps anyone, thought I'd add to the conversation. 1. I always take the Port, Starboard, House battery switches to the off position, when not using the boat for that day. I do leave them on when moored or at the dock and still plan to us...
Thought I'd add to this, for what it is worth. I have a 2020 SLX 400. The AGM 31 Series 3-House and 2-Inverter batteries were replaced in 2022, after 2 years of service. (The onboard Power Converter failed, and the batteries lost all charge while we ...