This is a fully automatic battery charger with 8 charge stages. Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. 8-stage charging is a very comprehensive and accurate charging process that gives your battery longer life and better performance compared to using traditional chargers. 8-stage chargers are suitable for most battery types including WET, MF, Calcium, AGM, and GEL batteries. They may also help restore drained and sulphated batteries. The 8 stages are: Desulphation ; Soft Start; Bulk; Absorption; Analyze; Recondition; Float. And Pulse.
Input Voltage: 110VAC Input Current: 1.4A Nominal Voltage:12V Bulk Charge Voltage: 14.1V (GEL), 14.4V (AGM), 14.7V (WET), 14.7V (CALCIUM) Float Voltage: 13.7V with Pulse Feature. Bulk Charge Current: 5A Cooling Fan: Automatic Temperature Controlled Battery Type: SLA, GEL, AGM Battery Capacity: 20-75Ah Connector: Insulated Alligator Clamps Size: 7.8 L x 4.5" W x 2.5" H Weight: 2.5 lb.