(5) While working with batteries, wear chemical protective splash
goggles (goggles with no vent holes which prevent splashed acid or chemicals
from entering the eyes), rubber gloves, and a rubber gown while filling
batteries with electrolyte.
c. Battery Construction. The lead acid battery consists of a number of
cells connected together. Each cell will produce approximately two volts; the
number of cells needed will depend upon the voltage desired. For example, one
12volt battery will have six cells.
(1) A cell consists of a compartment made of hard rubber, plastic, or
other bituminous material into which the cell element is placed. The cell
element consists of two types of lead plates, known as positive and negative
plates. These plates (Figure 21) are insulated from each other by suitable
separators (usually made of plastic, rubber, or glass) and submerged in a
sulfuric acid solution (electrolyte).
Figure 21. Negative and Positive Plate Group With Separators.