I wanted to find out if high voltage charged items would show a change in inertial mass.
so I set up an experiment to test it, I forgot to bring the pictures, but I remember that the result is no, it makes no or a very small difference. assuming my friend visiting from Alaska leaves my laptop in my apartment, then I will have pictures on my web site tomorrow.
http://128.32.86.100/list/
click on experiment, then click on cart, then you can look at the pictires.