The ARCO Marine BI-1202 is a high-performance battery isolator designed for use with 10 to 350A alternators on 12, 24, or 32V negative ground systems. This solid-state device efficiently charges up to two batteries from one alternator, preventing backflow and ensuring optimal battery management.

Key Features:

• Supports 1 alternator and 2 batteries with a maximum of 120A.
• Solid-state construction prevents reverse current flow, protecting batteries.
• Automatically charges batteries in proportion to their needs while the engine is running.
• Compatible with selector switches, eliminating the need to change switch positions for charging.
• Efficiently proportionates output charging current based on battery requirements.

Note: The BI-1202 is not suitable for use with 12V charging systems connected to 24V trolling motors or newer outboard engines equipped with rectifier-regulator charging systems.

• Designed for 10-350A alternators
• Works on 12, 24, or 32V negative ground systems
• 1 alternator, 2 batteries capability
• Solid-state technology for reliable performance
• Automatic charging based on battery demand