QWORK® 12V 140A Dual Battery Isolator Split Charge Relay IP65 Waterproof for Cars, Trucks, Motorhomes, Boats

Efficient Dual Battery Charging: Designed to charge two batteries simultaneously, ensuring that auxiliary batteries are charged after the main battery is fully charged, optimizing power use and extending battery life. Intelligent Voltage Sensitivity: Features a smart cut-in at 13.3 volts and cut-out at 12.8 volts, guaranteeing the primary battery is always fully charged before the secondary battery starts charging, protecting against power drain. Robust Build Quality: IP65 certification ensures this relay is dust-tight and protected against water jets, making it suitable for off-road, dusty, wet, extreme weather environments, and areas with significant vibration. Zero Voltage Drop: Guarantees efficient power transfer with zero voltage loss, maintaining the integrity of your electrical system and ensuring optimal performance of your electronic accessories. Easy Installation: Comes equipped with a mounting plate and necessary hardware for a straightforward setup.Worry-free purchase with satisfactory support for damage or quality issues.