Intelligent 12V Battery Disconnect Switch with Remote — Key Benefits and Features Why you need it Prevents battery drain during long-term parking or when lights/electrical accessories are accidentally left on. Protects and extends battery life by avoiding deep discharge, reducing the need for frequent charging or replacement. Adds an anti-theft layer by allowing quick battery isolation with a manual or remote switch. Core functions Intelligent shut-off protection: Built-in chip monitors voltage. If battery voltage falls below 11.8V, the switch automatically disconnects after 120 seconds to prevent deep discharge and save power. Switch-off threshold: 11.8V ± 0.2V. Remote control safety lockout: When battery voltage rises above 13.2V, the remote-control function is disabled to prevent accidental shutdown while driving. In that state the battery can only be disconnected using the manual switch. Low standby drain: Designed for minimal power consumption during standby (3 mA), preserving battery charge when not in use. Performance and durability Rated voltage: 12V Rated current: 240A Instantaneous (peak) current: 500A Operating temperature: -22°F to 194°F Insulated, high-temperature-resistant housing for safe operation in harsh environments Safety and protection benefits Prevents battery failure from long-term parking, degraded wiring, or lights left on Reduces frequency of jump-starts, battery replacements, and trailer repairs Maximizes stored battery energy and helps extend battery service life Provides a theft-deterrent by disconnecting battery power Compatibility and sizing Designed for 12V systems Uses a negative-link installation method; does not require cutting or modifying original vehicle wiring and can be restored to stock wiring later Fits negative terminal post diameters: 9–13 mm or 15–17 mm Not suitable for small vehicles with stake-head terminals Installation notes Simple negative-pole installation; follow standard safety practices Before installation, ensure all vehicle power is turned off The remote-control option offers convenient operation but will be disabled above 13.2V to prevent accidental shutoff while driving; manual switch always remains available Typical applications Seasonal or stored vehicles: Disconnect power on classic cars, motorcycles, or show vehicles during long-term storage to prevent battery discharge. RVs, boats, and trailers: Protect house and starter batteries when parked for extended periods to avoid unexpected failures. Fleet, off-road, and utility vehicles: Provide a quick, reliable battery isolation point for maintenance, transport, or anti-theft purposes. What’s included / expected 12V battery disconnect switch with intelligent control chip and remote capability Insulated housing and mounting-ready connections (verify negative terminal size before purchase) User should confirm compatibility with vehicle negative terminal size and turn power off before installing Safety reminder Confirm negative pole size (9–13 mm or 15–17 mm) before installation. Not compatible with stake-head small vehicle terminals. Turn off vehicle power before starting installation.