- Effortlessly connect the display board to your battery by linking the positive and negative terminals. Press the red button to illuminate the LED, providing an instant reading of the battery level in real-time. - Designed with a reverse connection feature, this product prevents damage even if the terminals are accidentally connected incorrectly. Simply adjust the connections to correct them. - Key Features: - User-friendly operation for quick battery level checks. - No power consumption when idle; the LED light automatically turns off after 3-5 seconds of inactivity, ensuring efficiency. - Compact and lightweight design for easy portability and storage. - Ideal for various applications: - Perfect for home use to monitor batteries in appliances and gadgets. - Essential for automotive enthusiasts checking car battery health. - Useful for technicians assessing battery status in tools or equipment. - Compatibility: Suitable for a wide range of batteries, making it a versatile choice for different needs. - Constructed with durable materials, ensuring reliable performance and longevity in various environments.