Option 1 : Initial cost of primary cell is cheap
| Difference Between Primary Cell and Secondary Cell: |
| Primary Cell |
Secondary Cell |
| Have high energy density and slow discharge and is easy to use |
They are smaller energy density |
| There are no fluids in the cells hence it is also called dry cells |
There are made up of wet cells (flooded and liquid cells) and molten salt (liquid cells with different compositions) |
| It has a high internal resistance |
It has a low internal resistance |
| It has an irreversible chemical reaction |
It has a reversible chemical reaction |
| Its design is smaller and lighter |
Its design is more complex and heavier |
| Its initial cost is cheap |
Its initial cost is high |
