PREVENT POWER DRAIN: Disconnecting your battery when not in use helps prevent power drain and extends battery life. This switch is perfect for vehicles and boats in storage or seasonal use, offering a safe and efficient way to manage power HEAVY-DUTY CONSTRUCTION: This battery switch is made of high-temperature resistant ABS material and brass connectors for long life. Its sturdy construction ensures safety and reliability, protecting your battery from accidental short circuits ON/OFF CONTROL: With a 275A continuous current rating and up to 1200A instantaneous current, this switch is compatible with 12-48V systems. Its good for cars, RVs, boats and other vehicles FITS STANDARD TOP POST BATTERIES: Specifically designed for standard top post batteries with 15-17mm negative terminals, this switch ensures a secure fit. Always verify your battery terminal size before installation to ensure compatibility and avoid connection issues CONVENIENT INSTALLATION: This battery disconnect switch is designed for quick and easy installation, connecting directly to the top post battery negative terminal without the need for additional cables or modifications. Its design ensures secure isolation of your electrical system, making it perfect for beginners and DIY enthusiasts