Yes. A 4-wheel electric vehicle with a water battery. It has four electric wheels with an iron shell and five water batteries, which can travel 60 to 70 kilometers. The water battery is a battery that uses water as a raw material to produce electricity. In addition to the solid materials it contains, this battery can produce electricity by adding water. At the Shanghai International Disaster Reduction Exhibition, which opened on October 10, 2012, special products powered by water batteries appeared.
That’s enough. Remove the zinc skin from the used battery and wash it. Zinc and copper are connected respectively, but don't touch them in salt water and you will be able to use them. To make batteries, the voltage is about 1 A little more volts.
Negative electrode: 2Zn -4e- = 2Zn2+, positive electrode: O2 + 2H2O +4e- = 4OH-