【Multiple Safety Protection】Charger has multiple safety functions: fire-resistant flower, low voltage protection, overvoltage protection, overcurrent protection, reverse connection protection, short circuit protection, overheat protection, ensure your safety. Intelligent charger contains a fan, it prevents overheating during charging and extends the life of the car charger. 【Intelligent LCD Display】Charger automatically recognizes the current voltage and does not require manual operation. The display can show voltage, current, battery capacity, temperature, etc. It is possible to know the state of the battery charge status. When charging, the red clip is used to secure the positive (+) battery, and the black clip is used to secure the negative (-) battery. Automatically stops charging when complete. 【Widely Used】Suitable for lead-acid batteries, batteries for 12V 6-150AH , 24V 6-100AH (AGM, GEL, WET, SLA, VRLA). Diagnose and repair battery problems and extend battery life. For cars,