Blue Sea Add-A-Battery Kit 120A

Add-A-Battery Kit 120A – 12V / 24V Battery Isolator & Switch

The Add-A-Battery Kit 120A is a complete solution for managing dual battery systems in caravans, 4WDs, marine, and off-grid setups. Combining a Dual Circuit Plus™ Battery Switch and an Automatic Charging Relay (ACR), this kit simplifies battery isolation and ensures efficient charging between your start and auxiliary batteries.

Designed for convenience and reliability, it allows seamless switching, automatic charging management, and emergency battery combining—all without the need for complex rewiring.

Key Features

• 120A System Capacity – Suitable for dual battery setups
• Dual Circuit Plus™ Battery Switch – Simplifies battery management
• Automatic Charging Relay (ACR) – Automatically manages charging between batteries
• Efficient Charging – Shares charge more effectively than traditional isolators
• No Rewiring Required – Easy installation without regulator adjustments
• Emergency Combine Function – Allows battery linking for emergency starting
• Corrosion Resistant – Tin-plated copper studs for durability and conductivity

Specifications

• Voltage: 12V / 24V DC
• Amperage: 120 A
• Weight: 1.07 kg

System Components

• Dual Circuit Plus™ Battery Switch
  • Isolates engine and house circuits
  • Combines batteries for emergency starting
  • Tin-plated copper studs for maximum conductivity
• Automatic Charging Relay (ACR)
  • Automatically combines batteries during charging
  • Isolates batteries during engine cranking or when not charging
  • Improves charging efficiency across both batteries

The Add-A-Battery Kit 120A is an ideal upgrade for anyone looking to simplify dual battery management while ensuring safe, efficient, and reliable power distribution.