The battery, invented by Italian Physicist Alessandro Volta in 1748, consists of two electrodes that are isolated by a separator and soaked in electrolyte to promote the movement of ions. (They convert chemical energy to electrical energy)
The rechargeable battery, invented by English Chemist John F. Daniell, can have their chemical reactions reversed to their original states and can be used over and over again.
Three main components of a battery*:
Solar panels need sunlight to charge their batteries to full capacity.
Light Emitting Diode (LED)- An electrical current passes thru a microchip, which illuminates the tiny light source to create visible light.
There are many advantages to using LEDs for lighting over traditional lamp sources (including incandescent and compact fluorescent lamps):
There are three different types of solar panel technologies used today: