Usage Tips:[High Compatibility & Easy Installation]This battery disconnect switch fits most vehicle batteries with its universal 3/8 inch screws. Designed for easy installation, it directly connects to the negative terminal of top post batteries, eliminating the need for additional cables or lugs. [Robust & Safe Construction]Constructed from flame-retardant Plastic and sturdy brass for the connections, this switch is spark-resistant and built to last. It ensures high conductivity and a long service life, making it a reliable choice for your vehicle's electrical system. [Efficient Operation]Capable of handling 275A continuous current at 12V, this switch also supports up to 455A of intermittent current and a peak of 1250A ient current. It's suitable for DC 12-48V systems and offers a straightforward ON/OFF operation. [Protective & Convenient]Ideal for preventing battery drain during periods of inactivity, this switch effectively isolates the electrical system of cars, RVs, and boats. It provides a secure method to disconnect the battery, ensuring safety and prolonging battery life. [Usage Precautions]For optimal safety and performance, always switch to the OFF position before disconnecting or connecting to the battery. Avoid operating under load to prevent damage to the battery switch. Color: Red + Black Material: Plastic + Copper The actual product may have slight color difference or difference, which will not affect the use Package Contents: 1 x Side Post Battery Disconnect Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.