Built with a tough steel case, these are ideal for use in busy workshops and garages. Protected against reverse polarity. Fitted with heavy duty charge leads and crocodile clips. Easily accessible internal fuses. Ammeter for charging indication. Thermal overload indicator. 3 charge rate levels. SPECIFICATION: Supply:230v (13amp) Charging voltages:12v / 24v Charging current:42amp max Boost rate:260amp Battery capacity:200Ah