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.
Once the tolls on the canal had paid for its construction in 1882, they were eliminated. After the opening of the canal, additional canals were constructed to connect the Erie Canal to Lake Champlain, Lake Ontario, and the Finger Lakes. The Erie Canal and its neighbors became known as the New York State Canal System.