Primary Cell:

Cells which cannot be returned to good recharged or condition after their voltage outcome has dropped to a value which is not usable, are known as primary cells. Dry cells which are used in flashlights and transistor radios example for AA cells, C cells are instances of primary cells.

Secondary Cells:

Cells which could be recharged to nearly their original condition are known as secondary cells. The most general instances of a secondary and rechargeable cell, is the lead-acid automobile battery.