[Specifications] Battery disconnect switch rated current: 240A, rated voltage: 12V, standby power consumption: 3mA, power-off threshold: 11.8V ± 0.2V, instantaneous current: 500A. [Manual and remote control] This disconnect switch helps prevent the car battery from draining due to long-term parking, line aging, or leaving lights on. It helps preserve battery charge, providing effective protection and extending battery life. [Smart car disconnect switch 12V] When the battery voltage drops below 11.8V, the remote disconnect switch automatically cuts off power after 120 seconds to conserve battery; when voltage exceeds 13.5V, remote control is disabled to prevent accidental disconnection while driving, and operation is only possible via the manual switch. [Automatic cut-off] If the battery voltage falls below 11.8V, the remote switch automatically disconnects power after 120 seconds to save energy. When voltage rises above 13.2V, remote control is disabled to avoid unintended power-off during vehicle operation; power can only be controlled using the switch button. [Protect the Battery] This car battery disconnect switch helps prevent battery drain caused by extended parking, faulty electronics, wire aging, or leaving lights on. It effectively protects and extends the life of the car battery. Color: As shown in picture Material: Metal + Plastic Package Contents: 1 x Remote Battery Disconnect Switch kit Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement allowance: +/- 1-3 cm.