... 4V, 12V,24V,36V 3.Charging current:1A,2A,3A,4A,5A Product Name: Battery charger for LiFePO4 cell, Shenzhen battery ... .Charging mode: 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 for charge ...