A battery constructed from three 3V, 20 Ah cells in series what is nominal energy capacity?

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chetan shidling asked 4 years ago

Options:

  1. 120 Wh
  2. 20 Wh
  3. 60 Wh
  4. 180 Wh
1 Answers
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chetan shidling answered 4 years ago

If we connect cells in series the voltage of each cell will be added and in parallel, a current will be added.
In this above question, three cells are connected in series.
 
The total battery pack voltage is 3 * 3 = 9 volts.
The total battery pack current capacity is = 20 Ah
The nominal energy capacity is = 180 Wh.