This battery disconnect switch is designed for reliable manual control of battery power in automotive and marine systems. Built with pure copper contacts, it delivers high conductivity and stable current transmission, helping reduce resistance, minimize power loss, and improve electrical system stability. The manual rotary design allows users to quickly cut off or restore battery power with a simple 90 degree turn. By disconnecting power when the vehicle is not in use, the switch helps reduce parasitic drain and supports longer battery service life, especially during storage or extended parking periods. Compatible with both 12 volt and 24 volt battery systems, this battery cut off switch is widely used in cars, trucks, RVs, boats, trailers, campers, and other vehicles requiring dependable battery management. Its compact size supports easy installation on standard battery terminals without complicated wiring. This battery shut off switch provides a practical solution for power control, battery protection, and electrical safety in a variety of everyday and professional use scenarios.