1. Function: protect the battery, cut off the power supply, and prevent leakage 2. Scope of application: cars, RVs, ships, buses, trucks, tractors, etc. 3. How to use: Pull the knife to isolate the battery and cut off the power immediately. 4. Brass has excellent electrical conductivity, oxidation resistance, corrosion resistance, and stable chemical properties; the electrical conductivity is better after copper plating. 5. Common problems: continuous power consumption of electrical equipment, short-distance battery loss, old vehicles self-discharge, modification can not automatically power off, you can easily power off by installing this switch. 6. Material: brass, copper, flame-retardant nylon, etc. 7. Rated voltage: 12V 8. Rated current: 250A 9. Instantaneous current: 750A 10. Installation position: car battery screw hole