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  • Trivia Friday (10202023)

    Posted by Renita DSouza on October 20, 2023 at 4:51 pm

    Calculate the number of cells required to achieve a 48v 4400 mah battery pack. Assume a lithium battery with a nominal voltage of 3.7v and full charge voltage of 4.2v with 2200mah capacity.

    1. 13
    2. 15
    3. 2
    4. 26
    Renita DSouza replied 9 months, 1 week ago 7 Members · 7 Replies
  • 7 Replies
  • Kavinselvan S

    Member
    October 20, 2023 at 5:01 pm

    13 Cells

  • jaison .

    Member
    October 20, 2023 at 5:04 pm

    Option D) 26 cells

  • Kishan Kumar

    Member
    October 20, 2023 at 5:32 pm

    4. 26 cells

  • Venkateshh Moningi

    Member
    October 20, 2023 at 6:09 pm

    13s2p combination ->D) 26

  • HARISH DS

    Member
    October 20, 2023 at 8:03 pm

    13 cells for 2200mah

    26 cells for 4400mah

  • Vishal Gupta

    Member
    October 21, 2023 at 9:25 am

    Option D. 26

  • Renita DSouza

    Administrator
    October 21, 2023 at 3:00 pm

    The correct answer is D) 26 Cells

    Explanation:

    Calculate the Number of Cells in Series:

    To get a total voltage of 48V, you would need:

    Number of Cells in Series = 48V/{Nominal Voltage per Cell (3.7V)}

    = 48/3.7 = approx 13 cells

    In a series configuration, the voltage adds up, so 13 cells in a series would give you a nominal voltage of 13* 3.7V = 48.1V.

    Calculate the Number of Cells in Parallel:

    Now, to achieve the desired capacity of 4400mAh (or 4.4Ah), you need to calculate the number of cells in parallel.

    Each individual cell has a capacity of 2200mAh (or 2.2Ah). To get a total capacity of 4.4Ah in parallel, you would need:

    Number of Cells in Parallel = 4.4Ah/2.2Ah = 2 cells

    So, to achieve a 48V 4400mAh battery pack, you would need 13 cells in series and 2 sets of these 13 cells connected in parallel, hence 13*2 = 26 cells

    ————————————————

    The winner of this week’s Trivia Quiz is Jaison. Congratulations!

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