Specification: • Input voltage: 100-240V AC, 50-60Hz • Rated output: 12V 6A • Minimum start voltage: 2.0V • Battery range: 6-100Ah • Thermal protect 65'C+/-5'C • Efficiency: App. 95%. Feature： • Microprocessor Control (CPU). • 3-STAGE AUTOMATIC CHARGING: • This is a fully automatic battery charger with 3 charge stages. • 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. • Switch mode technology: Yes • Polarity protection: Yes • Output short protection: Yes • Non battery link protection: Yes • Overvoltage protection: Yes • Over-temperature protection: Yes.