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 still does connect Lake Erie with the Hudson River. Indirectly, the Erie Canal connects the Great Lakes with the Atlantic Ocean. The Hudson River, after meeting the east end of the canal, flows to the Atlantic Ocean by way of New York City. The Erie Canal is one of several such connections that enable ocean-going shipping to access Great Lakes ports.