• Designed for charging all types of 12V and 24V lead-acid batteries including; Wet (Flooded), Gel, MF (Maintenance-Free), CA (Calcium), EFB (Enhanced Flooded Battery), and AGM (Absorption Glass Mat) batteries• Suitable for charging battery capacities from 2 to 400Ah (12V), 50 to 400Ah (24V) and maintaining all battery sizes• 20A booster enables a fast charge within 300 seconds• Temperature controlled