Does a fully charged battery weight more than when it's empty?
Yes because of E= mc*2
When you test the electrolite in a lead acid battery,as the battery charges the sulphuric acid becomes denser which gives it more mass so it "weighs" more.
Try it at home weigh a flat car battery on some reasonably accurate scales then charge it up and weigh it again.All you have added is potential energy.
The speed of light is constant,the energy has increased(it will start your car) so the only thing that can change is the mass.
When you test the electrolite in a lead acid battery,as the battery charges the sulphuric acid becomes denser which gives it more mass so it "weighs" more.
Try it at home weigh a flat car battery on some reasonably accurate scales then charge it up and weigh it again.All you have added is potential energy.
The speed of light is constant,the energy has increased(it will start your car) so the only thing that can change is the mass.
Nice Info.
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