Microprocessor Control (CPU). • 3-STAGE AUTOMATIC CHARGING: • This is a fully automatic battery charger with 3 charge stages. • Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. • 3-stage chargers are suitable for most battery types including Calcium, Gel and AGM, Wet batteries. They may also help restore drained and sulphated batteries. • Types of batteries: Most types of lead acid batteries including Calcium, GEL and AGM, Wet,EFB, etc... • Switchmode technology: Yes • Polarity protection: Yes • Output short protection: Yes • Non battery link protection: Yes • Over voltage protection: Yes • Over temperature protection: Yes • Cooling: Natural cooling • Input voltage: 100-240V AC, 50-60Hz • Rated output: 6V 2A / 12V 2A • Minimum start voltage: 7.0V