Hypothetically, could a huge battery be used to power the sun when it finally stops giving light?

Question: Hypothetically, could a huge battery be used to power the sun when it finally stops giving light?
- Keywords:
  battery,
  huge,
  hypothetically,
  light,
  sun
Asked by libslytherin to Mike, Pip, Tianfu, Tim, Tom on 29 Jun 2012.
- Tim Stephens answered on 29 Jun 2012:
  
  The sun kind-of is already a giant battery. The sun is powered by nuclear fusion. Hydrogen gas is being squashed together by gravity and fuses into Helium gas. When this happens, lots of energy is released as heat and light.
- Tom Lister answered on 30 Jun 2012:
  
  When it stops giving light, it will have run out of stuff to burn, so the battery would have nothing to power.

Question: Hypothetically, could a huge battery be used to power the sun when it finally stops giving light?