My water blech battery

Its simple project and it is working esey to make

step1.take some water in a container
step2.mix some bleching powder into water
step3.add a old battery(use it as zink) intu the water
step4. Add a copper plate in other side
make some distence betwen the copper and zink .
You will got 1v in one .you can add viniger to incress the volt.