When two or more cells are connected together it is termed as battery. It is used for storage of charges and the stored charges can be used at the required time. The other names of battery are Secondary cell or Accumulator

Types of Battery:

Lead Acid Battery

Nickel Iron Battery

Nickel Cadmium Battery

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SEPARATOR

The positive plates and negative plates are Isolated with each other by a separator. The separator is made of isolating material like wood, paper, ebonite or rubber. These separators are perforated, so that the electrolytes can easily pass through the separators.

PLATE GROUP

The positive plates and the negative plates are welded to a strap which is made of lead antimony alloy. This strap is attached to a cylindrical post which is made to project outwards. There are called as terminals. Normally the dia of the positive plates is more than denoted by

+ve sign and the dia of negative plates is small and is denoted by –ve sign.

CELL CONNECTOR

Each cell in the battery are connected in a series manner,i.e the positive terminal of a cell is connected with the negative terminal of other cell.

CONTAINER

This is made of rubber or thick plastic Bituminous. The container help in avoid leakage of charges and to prevent erosion. The inner part of the container is made into compartments in accordance to the number of cell, i.e for 6v battery there are 3compartments. Each compartment are separated by ribs. This ribs helps in avoiding short circuit during Breakage or corrosion of cells.