Booster Battery Charger 12/24V 30A Pressed Metal Case complete with ammeter. Starter / charger – 30A. A great all round battery charger with emergency boost start facility. Two switchable rates of charge – slow 30-120Ah – fast 50-350Ah. 250Ah (Max) engine starting facility for emergencies. High quality polarity coloured crocodile clips. Features. Amperage: 30Amp. 12-24V. …