How do you charge batteries?

Question: How do you charge batteries?
- Keywords:
  battery,
  charge
Asked by Achsu to Betty, Isaac, Kieran, Silvia, Will on 11 Nov 2016. This question was also asked by Boxer110bx, SharkyWarky.
- Isaac Llorens answered on 11 Nov 2016:
  
  When you charge a battery you are reverting the chemical process that provided electricity in the first place.

Question: How do you charge batteries?