Suitable for diesel and petrol engines from 1800cc to 3000cc. For use with 12 volt lead acid car batteries between 20-180 Ah. Standard battery charge time from flat 180Ah - 20 hours. 12 amps RMS normal charge rate and 2 amps RMS trickle charge rate. Short circuit protection, reverse polarity protection and built-in auto reset breaker for overload protection. Full charge automatic switching to maintenance mode. LED showing charging status and reverse polarity warning. Charging rates 12 amps RMS. Conforms to CE safety regulations.