Description: 1. SMART AUTOMATIC CHARGING: 2. This is a fully automatic battery charger. 3. Automatic charging protects your battery from overcharging, so you can leave the charger connected to the battery indefinitely. 4. Chargers are suitable for most battery types, including calcium, gel, and wet batteries. They can also help restore drained and sulfated batteries. 5. Battery Types: Most types of lead-acid batteries, including calcium, GEL, etc. Feature: Touch Switch Mode Technology: Yes Polarity Protection: Yes Output Short Circuit Protection: Yes No Battery Link Protection: Yes Over Temperature Protection: Yes Short Circuit Protection: Yes Over Current Protection: Yes Over Temperature Protection: Yes Fire Protection: Yes Low Voltage Protection: Yes Over Voltage Protection: Yes Reverse Protection: Yes Electric Shock Protection: Yes Cooling: Fan Specification: Rated Output: 12V/6A Battery range: 2-100Ah Power: 72W Display: Voltage, current, temperature, completion Note: Charger is