Question

Give Reason
•Devices like mobile phone use battery not a single cell​

Answer 1

Answer:

this is just because mobile need more power then a single cell can provide it so combined cell system battery is used..

Answer 2

Answer:

Mobile phones require larger amount of energy to function. A single cell does not provide much energy, so a combination of many cells are used to provide the necessary energy requirement.

Commonly used battery is Lithium ion battery.