What is Alkaline battery?

• Alkaline batteries: It is basically constructed with the chemical composition of Zinc (Zn) and Manganese dioxide (MnO₂), as the electrolyte used in it is potassium hydroxide which is purely an alkaline substance the battery is named as alkaline battery having the power density of 100 Wh/Kg.

Advantages:

1. Cycle life is more
2. More compatible and efficient for powering up portable devices.
3. Shelf life is more.
4. Small in size.
5. Highly efficient.
6. Low internal resistance so that discharge state in idle state is less.
7. Leakage is low.

Disadvantages:
Cost is a bit high. Except it everything is an advantage.

Applications:
It can used in torches, remotes, wall clocks, small portable gadgets etc.