Lemon battery Lemon battery A lemon battery is a simple battery often made for the purpose of education. Typically, a piece of zinc metal (such as a galvanized nail) and a piece of copper (such as a penny) are inserted into a lemon and connected by wires. Power generated by reaction of the metals is used to power a small device such as a light emitting diode (LED). The lemon battery is similar to the first electrical battery invented in 1800 by Alessandro Volta, who used brine (salt water) instead of lemon juice. The lemon battery illustrates the type of chemical reaction
Battery electric multiple unit battery/electric trains became operational on the through services on the Fukuhoku Yutaka Line in October 2016, which is electrified at 20 kV AC and the non-electrified Chikuhō Main Line, known as the "Wakamatsu Line", between Orio and Wakamatsu. A new EV-E801 series two-car BEMU train was introduced on the long non-electrified Oga Line in Akita Prefecture in March 2017. This differs from the earlier EV-E301 series train in being recharged from a 20 kV AC overhead supply instead of a 1,500 V DC overhead supply. Auckland Council has purchased 17 battery/electric trains from CAF in Spain, to operate between Britomart