Applicable battery: lead-acid batteries for AGM, GEL, EFB. AGM: 14.8V 29.6V. 12V 24V 15AH-250AH STD battery /gel battery / AGM battery / EFB battery. 24V(5A-10A). GEL: 14.4V 28.8V. Battery tyype Products with electrical plugs are designed for use in the US.