There are two basic types of battery cells. These are (1) the
primary cell (sometimes referred to as a "dry cell" because the
electrolyte is in paste form) and (2) the secondary cell (sometimes
referred to as a "wet cell" because the electrolyte is in liquid
form). Both types of cells are widely used.
One of the most popular primary cells in use is the flashlight cell.
The output voltage of the primary cell is about 1.5 volts when new.
The output voltage of the secondary cell is about 2 volts. This
voltage will vary with specific types of cells. For example, the
lead-acid cell used in the automobile battery has an output of 2.2
volts. The so-called 12-volt automobile battery consists of six
cells connected in series.
Select the advantage of connecting battery cells in series.
Higher output current is obtained.
Higher output voltage is obtained.