1、WEATHER RESISTANT: Smart battery isolator can work in dusty, humid and unexpected extreme weather conditions 2、MAIN FUNCTION: Enables your accessories to run on a separate battery when the engine is not operating on the vehicle, while keeping the main battery charged and your vehicle always ready for work 3、SUITABLE VEHICLES: This product can be installed on most vehicles, such as trucks, SUVs, RVS, ATVs, UTVs, boats, etc. 4、COMPLETE KIT: This package including 12V 140A voltage sensitive relay isolator and includes other accessories, also including instruction 5、EASY INSTALLATION: Equipped with long and short screws, nuts, terminals, accessories, convenient for your installation and use 1 x Relay2 x Long Screw2 x Short Screw3 x Nut1 x Terminal2 x Accessories1 x User Manual Item Type: Smart Battery IsolatorMaterial: ABSRated Voltage: 12VDCCombined Voltage: 13.3VDCOpen Circuit Voltage: 12.8VDCContinuous Rated Current: 125AIntermittent Current Rating: 140APower Consumption: 10mA(standby), 330mA(suction), 0mA(storage mode)