... ,14.4V, 12V,24V,36V 3.Charging current:1A,2A,3A,4A,5A Product Name: Battery charger ... 2V,10.8V,14.4V,18VDC optional3.Charging current: 1A,1.2A, 1.5A, 2A, 3A, 5A ... : constant current first, and then constant voltage5. Output power: 5W,10W,30W,50W,80W optional6 LED indicator ... : red on charging, green after fully charged7. Output short-circuit protection, battery reverse polarity protection8. Used ...