4: Low current charging mode (6V 2A, 12V 3A, 24V 5A). 6: High current charging mode (6V 10A, 12V 30A, 24V 16A). Output Current:6V Max 10A /12V Max 30A/24V Max 16A. Suit for Battery Type:Lithium,LiFePO4,Lead-acid[AGM,GEL,SLA,Flooded,WET,EFB,etc.].
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