With an 8-stage fully automated charging cycle delivering up to 4A of charging, the Clarke IBC4 is suitable for use with all types of 6V/12V lead acid batteries (WET, MF, EFP, STD., GEL and AGM) up to a capacity of 120Ah. This unit also includes detachable ring terminals and battery clamps, fitted with an inline fuse for added usage. Safety features include anti-spark, reverse polarity, short circuit and overload protection. 8 Stage Charging Cycle 1 - Testing 2 - Analysis 3 - Desulphation 4 - Soft Start 5 - Bulk Charge 6 - Absorption 7 - Pulse Charge 8 - Maintain Please note – Not Suitable for Lithium ion & Li-Po batteries