Efficient Power Distribution for Marine Applications

The Mastervolt BI 1202-S Battery Isolator ensures seamless charge distribution with minimal energy loss, making it an ideal solution for marine electrical systems. Designed for onboard setups with multiple batteries, this isolator allows for independent charging, preventing unnecessary discharge between power sources.

Built with robust, corrosion-proof materials and advanced diode technology, it guarantees durability and reliable performance in demanding marine environments. The unit integrates seamlessly with Mastervolt Mass battery chargers and Alpha Pro charge regulators, which automatically compensate for voltage drops, ensuring optimal charging efficiency.

Advanced Diode Technology for Reliable Charging

The BI Series Battery Isolator utilizes diode-based charge splitting, allowing multiple batteries to receive power without interfering with each other. With a diode voltage drop compensation feature, it maintains efficient charge distribution while minimizing energy waste. The compact, solid-state design prevents wear, making it a maintenance-free solution for long-term use.

Technical Specifications

• Maximum Output (Battery Charger): 80 A
• Maximum Output (Alternator): 120 A
• Compensation Diode: Yes

Product Dimensions

• Height: 8.1 inches
• Width: 5.5 inches
• Depth: 3.1 inches
• Weight: 2.6 lbs

Durable and Corrosion-Resistant Construction

Designed for marine applications, the battery isolator is built with completely corrosion-proof materials and features aluminum heat sinks for efficient thermal management. The synthetic end plates and molded diode splitters provide additional protection against harsh conditions, ensuring longevity in demanding marine environments.

Key Features

• Divides charge current with minimal energy loss
• Compatible with 12V and 24V systems
• Solid-state construction eliminates wear and enhances durability
• Molded diode splitters for improved efficiency
• Easy installation with solid bolt connections, nuts, and locking rings

Variations Available

• Model 83012021: 120A, 2 Battery Outputs
• Model 83007021: 70A, 2 Battery Outputs
• Model 83007030: 70A, 3 Battery Outputs

The Mastervolt BI 1202-S Battery Isolator is an essential addition for marine electrical systems, ensuring reliable, independent battery charging while minimizing energy loss.