In Figure 9 we see a pair of 12-volt batteries connected in parallel. This 12-volt battery pack is connected to a single 12-volt charger. Note the blue wire designated W1. The purpose of this wire is to balance the voltage drop evenly across both batteries and each wire during charging.
Confidence votes 36. The Erie Canal was so important to the United States (U.S) because it was the water way connecting the Hudson River with Lake Erie through New York State. 20 people found this useful.
Canal's entrance to the Hudson at Albanyview full size. In the early part of the century when the Erie Canal was first proposed, the project was viewed as a way to connect the western frontier to the established eastern United States and retain commercial and cultural loyalty for fear of losing it to the French.