Suitable for both diesel and petrol engines up to 1800cc. For use with 12 volt lead acid car batteries between 20-120Ah. Standard battery charge time from flat 120Ah - 20 hours. Short circuit protection, reverse polarity protection and built-in auto reset breaker for overload protection. Full charge automatic switching to maintenance mode. LED showing status and reverse polarity warning. Charging rates 8 amps RMS. Conforms to CE safety regulations.