TECHNICAL PARAMETERS: The operating voltage of the battery meter is DC8-30V, and the measuring voltage is DC8-30V. It supports voltage and remaining power measurement for lithium batteries, acid batteries, and lithium iron phosphate batteries. DUAL USB PORTS: The battery monitor features USB and Type-C ports, allowing battery voltage and remaining charge measurement while charging other devices. This provides added convenience and functionality. REVERSE POLARITY PROTECTION AND LOW VOLTAGE ALARM: The battery monitor includes reverse polarity protection. When the measured voltage is low, the screen flashes to alert the user. POWER OFF MEMORY: The battery monitor has a power-off memory function. Once the desired mode is set, the settings are retained even after power loss. No reconfiguration is needed for future use, ensuring easy operation. VERSATILE APPLICATIONS: The battery meter is suitable for installation in carts, cars, motorhomes, motorcycles, boats, electronic repairs, DIY electronics projects, and various other applications to measure battery voltage and remaining capacity.