12V/24V Dual Battery Isolator 300A Kit with Intelligent Control

Brand new. Not store returns. Price: $70 — firm. Pickup: South Ajax. If the ad is up, it’s available. 300A Smart Dual Battery Isolator System – Designed for vehicles with dual battery setups, this 300AMP isolator kit helps efficiently manage power between your main starter battery and auxiliary battery. Ideal for cars, trucks, RVs, ATVs, boats, and overland vehicles running additional electrical equipment. Independent Control Panel – Monitor and control your battery system directly from inside the vehicle. The control panel allows you to check battery voltage and manage the connection between the main and auxiliary batteries without needing to open the hood. Intelligent Battery Management – The built-in smart controller automatically protects the main battery from over-discharge, optimizes energy usage, and supports bidirectional charging and discharging between batteries for balanced and efficient power management. Emergency Start Assist Function – If your vehicle fails to start due to low main battery voltage, the manual Link button temporarily connects the auxiliary battery to assist with starting. When activated, the relay connects both batteries for up to 120 seconds to help restart the engine. Durable & Weather-Resistant Construction – Built with IP65 protection, the isolator is designed to be waterproof, dustproof, and shock-resistant. It performs reliably in harsh environments such as off-road trails, wet weather, or rugged outdoor conditions. High-Power Performance for Accessories – The 300A capacity makes it suitable for high-demand electrical systems including vehicle audio systems, refrigerators, lighting, TVs, and other onboard accessories often used in trucks, RVs, or marine setups. Recommended Installation Setup – For optimal performance and safety, it is recommended to use pure copper wiring with a cross-sectional area of at least 16 mm², ensuring stable current flow and efficient battery operation.