Accusmart Battery Chargers automatically provide the 4 steps for optimal battery condition: Diagnosis battery reconditioning of batteries with slight sulphation Charging - variable current to charge to 80% of battery capacity Absorption - a constant voltage to achieve full battery capacity Maintenance - a maintenance voltage to keep the battery charged Suitable for Wet, AGM, Gel MF batteries Light Powerful Protection against: Short circuits Voltage Peaks (AC DC) Polarity Inversion Overheating Voltage Spikes Supplied complete with: Eyelets for permanant battery connection Cigar Lighter Plug to recharge through 12v Aux. Socket Crocodile Clamps for Battery Connection Suitable for wall mounting Charges 12v batteries upto 50Ah Maintains 12v batteries upto 100Ah Maximum charging time 25h.