text: Primary cells are not rechargeable and are generally disposed of after the cell's internal reaction has consumed the reactive starting chemicals.
  Secondary cells are rechargeable, and may be reused multiple times.
  * Primary cell
  ** Zinc–carbon cell
  ** Alkaline cell
  ** Lithium cell
  ** Mercury cell 
  ** Silver-oxide cell
  * Secondary cell
  ** Nickel–cadmium cell
  ** Lithium-ion cell
  ** Nickel–metal hydride cell