VEVOR 50W 12V Solar Battery Charger Maintainer, Mono Solar Panel Trickle Battery Charger with Upgraded MPPT Controller, IP65 Waterproof for Car Boat RV Trailer Flat Rooftop (Bracket Not Included)
No. You generally do not need to disconnect it before starting your boat engine. The included MPPT charge controller is designed to remain connected while maintaining the battery.
