Smart Battery Isolator Relay - 200 Amp Heavy-Duty Dual Battery Voltage-Sensing Solenoid

This smart 200 amp battery isolator relay is engineered for dual battery systems in automotive, marine, and off-grid applications. It automatically prioritizes starting battery protection while managing auxiliary battery charging through voltage-sensing activation. Designed for durability and efficiency, this unit prevents start battery drain while allowing non-essential loads to draw from the auxiliary system.

Specifications & Features

• System Voltage: 9–16V DC
• Turn-On Voltage: >13.2V
• Turn-Off Voltage: <12.7V
• Turn-On Delay: 5 seconds
• Turn-Off Delay: 10 seconds
• Maximum Continuous Current: 200 Amps
• Standby Current Draw: <5mA
• Protects start battery from excessive auxiliary load discharge
• Automatically connects auxiliary battery once starting battery charges
• Ideal for dual battery setups in trucks, RVs, boats, trailers, and service vehicles