Silverline 549095 Automatic Battery Starter Charger 12A 6/12V 8-180Ah Capacity UKHeavy duty, intelligent 3 stage starter charger for 6V and 12V vehicle batteries. Leisure, deep cycle, regular lead acid, AGM and gel cell batteries can be charged in or out of vehicles by trickle charge or a fast charge. Built in heavy duty clamps for quick and secure connection to battery terminals. Features start mode that provides a boost to weak batteries, which assists in starting vehicles. Intelligent microprocessor detects battery charge