Whether the batteries used in trucks, tractors and invertors are also made from cells. then why it is called a battery?
Cell is the smallest unit of a battery. Which means a single cell can make a battery, two or more cells together also can make a battery. Abatteryis actually a power supply withmore than one cell. This is why, the DC power supply used in tractors, trucks, inverters etc are called battery (one such battery contain about 4-6 cells).