need more info but the short answers are: yes quick charge is for real, yes it can cycle in an hour but only to 80%, the batteries must be equalized at least weekly, yes it has a negative affect on the life of the battery, and yes in most cases the battery is modified (ie) stacked lead bars for cooling, larger and or double cables / connectors, temp sensors in the battery and with most of the high end stuff there will be a data management box on the battery so that the charger can recognize and track each individual battery in the fleet.