The same way all batteries charge: electrons are taken out of one side, transferred through some wire and put back in the other side. When you use the battery the electrons go back to where they started.
I have no idea what the second bit of your question meant
The same way all batteries charge: electrons are taken out of one side, transferred through some wire and put back in the other side. When you use the battery the electrons go back to where they started.
I have no idea what the second bit of your question meant