The ARCO Marine BI-0702 is a reliable battery isolator designed for use with 10 to 350-amp alternators in 12, 24, or 32-volt negative ground systems. This isolator can connect one alternator to two batteries while ensuring that both batteries are charged appropriately according to their needs while the engine is running.

Application: Ideal for inboard and outboard marine applications, the BI-0702 allows for safe and efficient battery management without the risk of battery discharge between connected systems.

• Supports 1 alternator and 2 batteries with a maximum of 70A.
• Solid-state design permits unidirectional current flow to prevent discharge between batteries.
• Ensures both batteries are automatically charged according to their needs during operation.
• Compatible with selector switches for flexible battery management without manual switching.
• Provides proportional output charging to batteries regardless of switch position.