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.
Nearly 80% of upstate New York's population lives within 25 miles of the Erie Canal. The Erie Canal's success was part of a Canal-building boom in New York in the 1820s. Between 1823 and 1828, several lateral Canals opened including the Champlain, the Oswego and the Cayuga-Seneca.