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.
Construction on the Erie Canal began in 1817 and cost over $7 million to build. The Erie Canal was 363 miles in length and was opened on Oct. 26, 1825. In 1825, it took five days to travel the length of the canal, which took two weeks by stagecoach. The Erie Canal allowed New York City to become the largest city and port at the time giving the state more political influence.