Question

why batteries are useful than cell

Answer 1

Heya!

Nice question!
here is your answer ⤵

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Batteries are useful than cell because as we know battery is the combination of cells.
So it means that battery has more power than cell.If the power is more than batteries are more useful than cell.
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Answer 2

because cells become dead and are not charged again but batteries can be charged ,cells have expiry date but batteries have no expiry date