Battery Charger 12/24V 15A S/Mode 240V AC (9Step)Nine step fully automatic 15 amp high current charger with maintenance charging of all types of SLA batteries as well as lead calcium batteries from 50 250Ah, and either 12V or 24V. The electronics are fully microprocessor controlled and protected against user error, so is totally safe to leave connected for months at a time. This charger will also charge in sub zero temperatures, will recover sulphated batteries and can be used as a 10A power supply.