Batteries are the best DC voltage sources. Batteries are portable and very useful for small circuits power supplies.
- A battery or cell has two terminals, positive (+) and negative (-).
- It provides DC voltage.
- Every cell or battery has fixed current rating indicated as Ah (Ampere hour).
Batteries in Series
When number of batteries are connected in series, the total voltage is the addition of all individual voltages, as showns below.
Batteries in Parallel
When number of batteries are connected in parallel, the output voltage depends on the type of connection between the two batteries but the output current will be equal to the addition of individual battries.
Batteries in Anti-Series
When number of batteries are connected in anti-series style, the total voltage is the algebraic addition of all individual voltages according to their polarities, as showns below.
Batteries in Anti-Parallel
When number of batteries are connected in anti-parallel style, the total voltage depends on individual connections of the batteries, as shown below. You can check this practically by actually connecting number of different batteries.
Here in above three cases, please note that the output voltage remains the same with or without load, as shown below.
The circuits shown above are simulated circuits and use ideal batteries. In our lab we tested all these combinations of batteries and found almost the same results. If you want to share your comments, please write it below.
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