12V 140A Smart Dual Battery Isolator

Selling a 12V 140A Smart Dual Battery Isolator. This is an essential component for any dual-battery setup, allowing your vehicle's alternator to charge two batteries simultaneously while preventing your auxiliary battery from draining your main starting battery. Key Features: Smart Operation: Automatically combines batteries when charging and isolates them when discharging. Heavy Duty Rating: 12 Volt DC with a strong 140 Amp continuous rating. Voltage Sensitive Relay (VSR): No voltage drops compared to traditional diode isolators. Easy Installation: Comes in its original retail blister packaging with manual instructions visible on the backing card. Versatile Use: Perfect for trucks, SUVs, 4x4s, RVs, campers, marine boats, and solar backup systems.