| | Battery (electricity) - Wikipedia, the free encyclopedia |
 | | The dry pile was a high voltage low current semi-permanent battery developed in the early 1800s and constructed from silver foil, zinc foil, and paper. |
| | were stacked up several thousand thick and then either compressed in a glass tube with endcaps and a screw assembly, or simply stacked between three glass rods with wooden endplates. |
| | It is a type of Voltaic pile, with an output potential in the kilovolt range. |
| en.wikipedia.org /wiki/Battery_(electricity) (4509 words) |
