Cells, disposable batteries and rechargeable batteries are an electrochemical source of Power taht produce energy as a result of either reversible Or irreversible chemical reactions. Each battery consists of one or more cells in order to provide the adequate voltage. They can be divided into two groups: primary cells (un-chargeable) and secondary cells (rechargeable) . Primary cells irreversibly transform chemical energy to electrical energy while secondary cells can have their chemical reactions reversed by supplying electrical energy back to the cell.

PRIMARY CELLS	SECONDARY CELLS
Zinc - Carbon cells 1,5[V]	Lead - acid cells 2[V]
Alkaline cells 1,5[V]	Nickel - Cadmium cells (NiCd) 1,2[V]
Silver oxide cells 1,5[V]	Nickel - metal hydride cells (Ni-MH) 1,2[V]
Mercury cells 1,35[V]	Lithium - Ion cells 3,0[V]
Lithium cells 3,0[V]
Lithium cells 3,6[V]
Zinc - air cells 1,4[V]

Questions already answered by our experts:

1) Zinc-carbon cells (primary batteries)

2) Alkaline cells (primary batteries)

3) Silver oxide cells (primary batteries)

4) Mercury cells (primary batteries)

5) Lithium cells (primary batteries)

6) Zinc-air cells (primary batteries)

7) Lead-acid cells (rechargeable batteries)

8) Nickel-cadmium cells (rechargeable batteries)

9) Nickel-metal hydride cells (rechargeable cells)