【Multiple Safety Protections】This charger features several safety functions: fire-resistant, low-voltage protection, overvoltage protection, overcurrent protection, reverse connection protection, short-circuit protection, and overheat protection, ensuring your safety. The intelligent charger includes a fan to prevent overheating during charging and extend the charger's lifespan. 【Intelligent LCD Display】The charger automatically recognizes the current voltage and requires no manual operation. The display shows voltage, current, battery capacity, temperature, etc., allowing you to monitor the battery's charging status. When charging, use the red clip to secure the positive (+) battery terminal and the black clip to secure the negative (-) battery terminal. Automatically stops once charging is complete. 【Widely Used】Suitable for lead-acid batteries, 12V 6-150AH, and 24V 6-100AH batteries (AGM, GEL, WET, SLA, VRLA). Diagnoses and repairs battery problems and extends battery life. For