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.
In the Beginning. The Erie Canal was first proposed in 1768 because settlers needed a way to travel from the East Coast to the land they were settling. They needed to be able to get produce and materials. The proposal to build the canal was finally passed in 1808 and the digging began in 1817.