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.
The Erie Canal is a waterway in New York that runs about 363 miles from Albany, New York on the Hudson River to Buffalo, New York at Lake Erie, completing a navigable water roâ¦ute from the Atlantic Ocean to the Great Lakes.