Does a phone weigh more after charging it?

Can fully charged batteries replace our training weights for daily exercises?
25 April 2022
Presented by Otis Kingsman
Production by Otis Kingsman.


Battery levels


Listener Tibor wanted to know the answer to the question, "Does potential energy have any mass? If I was to charge a phone battery, would it become heavier?" Dr Israel Temprano from the Univserity of Cambridge explains to Otis Kingsman about this battery baffler...


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