Sunday, 21 April 2019

batteries - Supplying 220V to a cell phone battery?



I have to do this demonstration about batteries for a school project and I was thinking about the effects of supplying excess energy to a battery. I was wondering what would happen if I supplied 220V AC DIRECTLY to a Li-Ion battery rated at 3.7V? I would place the battery in a closed glass box, in case it explodes. But do I risk starting a fire? I want to know exactly what would happen if I do so..




Answer



It will explode, it will catch fire, you will be in trouble with your school administration.


This belongs to the class of questions best answered with:


If you have to ask this question then you don't know enough to do it safely.


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