30A Battery Charger: This smart battery charger supports 6V/12V/24V lead-acid batteries (Wet/Gel/MF/CA/EFB/AGM/Calcium) and 12V/24V LiFePO4 batteries. Up to 30A output with adjustable voltage/current, plus Professional Mode for non-standard batteries Four Smart Charging Modes: This car battery charger provides Charging Mode with 7-stage smart charging tech, Maintain Mode for low-current upkeep, Desulfation Mode for restoring aging batteries, and Force Mode for battery activation below 1V Multiple Protections: Built-in overcurrent, short circuit, reverse polarity, overheat, low temperature, and overvoltage protections. With thermal compensation, this lithium battery charger automatically adjusts current and voltage for secure charging Real-Time LCD Display: The LiFePO4 battery charger features a 3.1 in LCD screen showing charging mode, voltage, current, battery level, and battery status in real time. Independent buttons make the operation quick and beginner-friendly