Up and atom: How exactly does a ‘forever’ battery work?

They are small, nuclear, and will never need to be charged. But what are they likely to cost? What will their carbon footprint be? Take a look.

Up and atom: How exactly does a ‘forever’ battery work?
They are small, nuclear, and will never need to be charged. But what are they likely to cost? What will their carbon footprint be? Take a look.