MaySpare 12V-24V Battery Disconnect Switch with LED Digital Voltage Monitor — Open-Box, 1% Off

Features a built-in, high-visibility LED screen that monitors your battery status in real-time with an outstanding static accuracy of within ±0.1V. Easily track voltage drops and battery health during long-term storage, maintenance, or daily use to prevent unexpected power failures and dead batteries

Constructed with premium, thickened pure copper contacts, this battery cutoff switch ensures maximum current transmission efficiency, exceptionally low resistance, and minimal voltage drop. Excellent corrosion and wear resistance guarantee stable, long-lasting performance for high-load automotive and marine electrical systems

Designed with a flexible rotatable terminal head to accommodate various wiring angles and tight spaces in different vehicle layouts. With the included compensation shim, it easily fits either positive or negative terminals on most SAE/JIS batteries, offering hassle-free, tool-friendly adjustment

Safely and quickly isolate your power supply with a simple 90-degree turn of the manual rotary switch. By completely cutting off parasite drain and preventing battery leakage during idle periods, it dramatically extends battery lifespan—making it an essential keeper for seasonal vehicles, RVs, and boats

Perfectly compatible with all 12V and 24V battery systems, this heavy-duty switch is widely used in cars, trucks, RVs, yachts, marine setups, campers, and trailers. Each package comes complete with 1 LED battery disconnect switch, 1 dedicated mounting wrench, and 1 tightening shim for a secure and hassle-free DIY installation

Real-Time LED Voltage Display (±0.1V Precision) Features a built-in, high-visibility LED screen that monitors your battery status in real-time with an outstanding static accuracy of within ±0.1V. Easily track voltage drops and battery health during long-term storage, maintenance, or daily use to prevent unexpected power failures and dead batteries. Heavy Duty Pure Copper & Outstanding Conductivity Constructed with premium, thickened pure copper contacts, this battery cutoff switch ensures maximum current transmission efficiency, exceptionally low resistance, and minimal voltage drop. Excellent corrosion and wear resistance guarantee stable, long-lasting performance for high-load automotive and marine electrical systems. Rotatable Terminals & Positive/Negative Compatibility Designed with a flexible rotatable terminal head to accommodate various wiring angles and tight spaces in different engine compartment layouts. With the included compensation shim, it easily fits either the positive or negative terminals of most SAE/JIS batteries, offering a hassle-free, tool-friendly installation. 90° Manual Rotary Control & Anti-Drain Protection Safely and quickly isolate your power supply with a simple 90-degree turn of the manual rotary switch. By completely cutting off parasitic drain and preventing battery leakage during idle periods, it dramatically extends battery lifespan—making it an essential accessory for seasonal vehicles, RVs, and boats. Universal 12V/24V Compatibility & Ready to Install Perfectly compatible with all 12V and 24V battery systems, this heavy-duty switch is widely used in cars, trucks, RVs, yachts, marine setups, campers, and trailers. Each package comes complete with 1 LED battery disconnect switch, 1 dedicated mounting wrench, and 1 tightening shim for a secure and straightforward DIY installation