25A Max Pro Battery Charger

Key Features

• Efficient, Energy-Saving, and Fast Charging: The TowerTop 12v battery charger offers 4 adjustable current settings (3A/15A/25A/AUTO) to meet your diverse needs. The max current is 25 amp, which can fully charge a 100Ah battery in just 3.5 hours. Compared to a 2A car battery charger, charging speed is increased by 1640%. Not only is it energy-saving, but it also saves you a significant amount of waiting time
• Smart Battery Charger & Fully Automatic Charging: Using advanced SMPS tech and a TowerTop Self-developed MCU chip, charging efficiency reaches 85% (industry average is 75%). The auto battery charger supports automatic battery detection, desulfation, and repair. TowerTop automotive battery charger knows your battery better. Compared to traditional transformer+rectifier designs (60% efficiency), it boosts efficiency by 48%, reduces size by 60%, and weight by 70%. Time to replace your bulky, outdated charger!
• Plug-and-Play, Beginner-Friendly: Simply connect the 12 volt battery charger to AC power and your battery. No extra steps needed. The battery chargers will automatically detect the battery status and start charging in 30 seconds. It switches to maintenance mode after full charge, with zero overcharging. You can also set it manually. Built-in protections include reverse polarity, spark-proof, overcharge/discharge, overvoltage, overcurrent, overload, overheating, current backflow, short circuit, and more. ETL certified. Safe to use without any electrical knowledge
• All-in-One Design & 6 Professional Battery Modes: This 12v charger supports all your 12V battery needs with 6 Professional charging modes: STD, GEL, AGM, Deep Cycle, Calcium, and LI (LiFePO4). Each mode uses an independent charging curve for better protection. Also compatible with Wet, MF, and EFB batteries. Perfect for cars, boats, RVs, trucks, motorcycles, powersports, and lawn tractors
• Engine Start Aid& DC Power Supply Function: The engine start function delivers 100A to help activate your battery and start your car within 100 seconds. The DC power supply mode provides stable 14V with up to 25A current (max 350W), ideal for 12V DC-powered devices like air pumps, car vacuums, fridges, etc. It also supports vehicle maintenance tasks like ECU programming, module replacement, fault diagnostics, and serves as a memory saver during battery replacement
• HD LCD Screen, Precision & Standard Charging Modes: Features true 8-stage intelligent charging: Desulfation, Soft Start, Bulk Charge, Absorption, Analyze, Repair, Float, and Pulse Maintenance, which help extend battery life and repair issues. Standard charge mode uses a basic 4-stage process for users who need quicker charging and basic maintenance. The clear LCD screen displays charging stages and parameters, so you always know the status
• Battery Repair & Winter Mode: Separate Desulfation and Repair buttons allow you to manually restore battery health and extend battery life—great for old or idle batteries. If your battery won't charge, try the Repair mode. (Note: It cannot repair completely dead batteries.) Winter mode adds 0.2V to the standard voltage, improving battery activity and charging performance in cold temperatures

Specifications