Does “electricty” or whatever it’s called that goes into your electric vehicle battery, have mass or weigh anything? My car has a 100KW battery. Is the weight substantially different when it has 0 charge versus when it is fully charged? It seems like a lot of energy goes into the battery, it must add to the net mass of the vehicle?
In: Technology
It doesn’t.
All the material is already inside your battery, what charging is doing is essentially rearranging the positively and negatively charged particles so that later they can be again “unleashed” on each other.
In other words, using your battery is not like draining a bucket – particles are not leaving it, so the weight doesn’t change, and conversely charging it does not “pour” the material in. They both just rearrange the material that’s already there.
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