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.
The Erie canal was very important because, when the Erie canal wasn't built yet, it was hard for transportation and trading. However when the Erie canal was built, it was much easier to go from 1 place to the other, and to get or give goods to other places. Meaghan Anderson.
Save. When the Erie Canal opened in 1825, the 363-mile canal connected the Hudson River at its east end with Lake Erie in the west. The canal was such an important part of the 19th century that it spawned a popular song, Fifteen Miles on the Erie Canal..