Secondary cells

4.5 Secondary cells

Secondary cells are rechargeable units. When they are depleted, they can be replenished by charging.

The most common secondary cells are:

1.       The lead-acid cells which make the car battery.

2.       The alkaline cells, such as nickel-cadmium cells.

3.       The lithium ion cell, which makes the cellphone battery and portable computer batteries are most recent.

Panasonic Lithium Ion Batteries

Because they are rechargeable, they are used as standby and emergency power supplies for hospitals, factories, schools, cellphones, tablets pcs and many others. They are also important for situations where higher currents are required, for example, in motor vehicles, aircrafts and mobile equipment used in remote areas.