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1.What is a Battery?

In science and technology, a battery is a device that stores energy and makes it available in an electrical form. It converts chemical energy into electrical energy, producing an electric current when connected in a circuit. The finished battery is an electrically connected group of cells (wired in series) that stores an electrical charge and supplies a direct current (DC). We usually call finished battery as battery pack and unfinished battery is called as cell.

2.How to classify the battery?

Batteries are grouped into following categories:


3.What are the differences between Primary Battery and rechargeable battery?

A primary battery is not intended to be recharged and is discarded when the battery has delivered all of its electrical energy.

A rechargeable battery is a galvanic battery which, after discharge, is restored to the fully charged state by the passage of an electrical current through the cell in the opposite direction to that of discharge.

4.What causes short lifetime of battery? How to prolong the lifetime of battery? GO TO TOP

1) Reason:

2) Solution:


5.Why can't the battery be charged? How to solve this problem?

1) Reason:

2) Solutions:


6.What's the reason that causes battery with no voltage or low voltage? How to avoid this problem?

1) Reason

2) Solutions:

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