A battery is one of the most commonly used devices in electronics. A battery is a source of electrical power consisting of one or more electrochemical cells put together and provided with some sort of external connections to use the power. A battery basically works on the principle of conversion of chemical energy into electrical energy. A battery has two terminals, positive (+) and negative (-).Usually, there are 2 major types of batteries:-
1. Rechargeable
These batteries once exhausted can be recharged with help of chargers and be utilised again. The common mobile Li-ion batteries can be considered as a nice example.
2.
Rechargeable
These batteries once exhausted can be recharged with help of chargers and be utilised again. The common mobile Li-ion batteries can be considered as a nice example.
2. Non-Rechargeable
These batteries, once used and exhausted, can’t be recharged again and used. So, basically these batteries are only meant for one-time usage.
How to use
To use a battery, attach the device to the terminals of the battery. Some devices might have a port where it can be directly plugged. Otherwise, wires can be used to make the connection. Make sure the terminals are connected with the right wires. As a convention, the red wire is positive and the black wire is negative. After a rechargebale battery is exhausted, which can be known when the battery isn’t providing any voltage, it should be charged. For charging as well, it depends on different kinds of batteries. But most commonly, the charger has a holder where the battery needs to be put, and then turning on the power button would start charging the battery. The indicator light would give an idea if the battery is charged or being charged. After its done charging, the battery should be removed from the charger holder.
Common Applications
1. A battery is used to power almost every electronic device that we use.
2. Batteries are used in other appliances such as watches, remotes, etc.
Some example projects that students can try out in the ATL Lab
1. Make a series LED connection using battery and see the difference in intensities (https://www.youtube.com/watch?v=8CGEoHSHduc)Y
2. Connect a small DC motor to the battery and try rotating it
Safety Measures to follow
1. Don’t overcharge a battery for too long.
2. Store the batteries away from heat and sunlight.
Important Links
1. Working principle of a battery (https://youtu.be/PXNKkcB0pI4)
YouTube Video
