Supercharge Marine + 4WD batteries
Marine Starting and Dual Purpose Start/Cycle Batteries. Specific to Inboard & Outboard petrol motors up to 275HP, Diesel 4L (single battery -use more than one for higher applications). And the 4WD enthusiast where the plate re-inforcing for marine conditions is suitable for rugged 4WD'ing. Dual batteries for heavy electrics and Stand-by electics. Dual batteries 4WD'ing for accessories -winches etc.