Features: Safeguards 10-110V lead acid or lithium batteries with automatic low voltage cutoff switches, featuring an LCD display for real-time voltage monitoring, customizable charge/discharge mode, and a 10A high-current relay for reliable power management. Program voltage thresholds, delay intervals, or forced start times (0-10 seconds) via intuitive button controls, while the screen clearly shows voltage, percentage, and timing for precise adjustments. Designed for electronics engineers, DIY enthusiasts, and electric vehicle owners needing advanced battery management to prevent over-discharge and extend battery lifespan. Ideal for lab testing, home energy storage maintenance, or integration into e-bike/scooter systems requiring automated voltage cutoff protection. Includes durable cable and a metal housing for secure, high-current connection, with an emergency stop button (short press DOWN) for instant relay shutdown during critical situations. Specifications: Component: Plastic + Metal Option Length: Approx. 7.3 x 7 x 2.2 cm / 2.87 x 2.76 x 0.87 inch Operation Mode: Automatic, Off Current: 10A (Max) Operating Voltage: 10-110V Package Includes: 1 pc Cutoff Switch Module Note: Please allow 1-10 mm errors due to manual measurement. Due to differences between monitors, the picture may not reflect the actual item color.