Blue Sea Mini ACR Charging Relay 65A

Blue Sea Mini ACR Charging Relay 65A is a smart automatic charging relay designed to manage charging between two separate battery banks completely automatically. It connects the start and service battery during charging and separates them when charging stops, ensuring both batteries are charged efficiently without risking the start battery’s charge level. Looking for a simple way to automate battery management on your boat? The Blue Sea Mini ACR detects when charging begins and automatically links the battery banks so charging power is shared efficiently. When charging ends and voltage drops, it disconnects them again, preventing the service battery from draining the start battery. Automatic connection and separation of battery banks The Mini ACR continuously monitors system voltage and operates fully automatically without user intervention. This makes the electrical system easier to manage while keeping both battery banks in optimal condition. It connects the batteries during charging and isolates them when charging stops, ensuring the start battery always retains enough power to start the engine even after long periods at anchor. Protects electronics during engine start The start isolation function protects sensitive onboard electronics during engine cranking. It temporarily disconnects the service loads during startup, preventing voltage spikes or drops from affecting navigation and communication equipment. This improves overall system reliability and extends the lifespan of onboard electronics. Compact design for marine environments The compact design allows flexible installation options including surface, rear, or panel mounting. The IP67-rated housing protects against moisture, water spray, and temporary submersion, making it ideal for harsh marine environments. A built-in LED indicator clearly shows operating status, and the removable protective cover simplifies installation and servicing. Features: • Smart automatic charging relay for two battery banks • Suitable for 12 V and 24 V systems • 65 A rated current • Automatically connects batteries during charging • Automatically disconnects batteries when charging stops • Start isolation function protects onboard electronics • LED status indicator • Removable protective cover • Compact design with flexible mounting options • IP67 waterproof housing Technical Specifications: • Rated current: 65 A • Operating voltage: 12–24 V • Combine threshold: 13.6 V (27.2 V) / 30 sec or 13.0 V (26.0 V) / 2 min • Disconnect threshold: 12.35 V (24.7 V) / 10 sec or 12.75 V (25.5 V) / 30 sec • Protection rating: IP67 • Ground terminal: 1/4″ × 0.032″ quick connect male • Terminal length: 11 mm (7/16″) • Mounting options: surface, rear, or panel mounting The Blue Sea Mini ACR Charging Relay 65A is an excellent choice for boat owners who want fully automatic and reliable dual-battery charging management. It protects the start battery, optimizes charging efficiency, and improves overall electrical system reliability without complicated setup.