Automatic 6-stage desulphating 4-station charger for batteries from 10Ah as used in cruiser & touring motorcycles, golf trolleys & carts, automotive and pleasure boats. The OptiMate PRO 4X4A is an automatic 6-stage charger incorporating diagnostic checks & an automatic special recovery mode for deep-discharged (sulphated) batteries. Four different 12 Volt batteries can be simultaneously and independently perfectly charged and assessed by way of 3 selectable programmes.