How to Make a Powerful Water Battery




About: Hello!

In this Instructable I will explain how to make a powerful battery that runs on rain water!

This battery is environmentally friendly because it can run on rain water.It still needs the metals. Distilled water will NOT work, it has to be conductive. Whenever it runs out of power you just have to drain the water and refill it. If more power is needed, you can add a little bit of Clorox Bleach. It also works with other electrolytes, like lemon juice, vinegar, saltwater, or baking soda.

This is my first instructable so i am welcome to any criticism or suggestions.

Disclaimer: Alot of the methods of cutting, drilling, hammering, pummeling, incinerating, and sawing that I describe are dangerous and I strongly suggest you should go about all of the cutting, drilling, hammering, pummeling, incinerating, and sawing in your own manner that is safer than mine. I take no responsibilty for the actions you take concerning this instructable. Have fun! =).

By the way, this battery will only produce about 1 volt but will get a lot of current. For more voltage, hook together alot in a circuit.

PS: Just so you know, I'm only 12.

PPS: For you instructables admins, my dad made the account.

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Step 1: Materials

To make the battery you will need some stuff (obviously).
-2 feet of 3/4" pvc pipe
-2 feet of 1/2" copper pipe
-2 feet of 7/16" zinc plated threaded rod
-2 3/4" pvc endcaps
-1 3/4" pvc coupler
-1 3/4" pvc threaded endcap
-1 what looks like a 3/4" tee with a 1/2" threaded middle thingie
-1 1/2" copper endcap
-measuring tape
-electrical tape
-pvc glue
-multimeter (optional)

Step 2: Getting Your Materials Ready...

OK, so first off you're going to have to cut your 2' pvc pipe in half. You also need to cut 3 1/2" off of one of the halves. This is so you can attach the tee. Next, you need to wrap the very edge of your zinc rod in enough electrical tape to fit snugly in the copper pipe. Also wrap it 1 1/2" away from the other edge with the same amount. Wrap the middle too. Now for the copper pipe, starting 3" away from the edge you have to cut a lot of holes for water to be able to get in. I did them evenly spaced but you can do it whatever way you want to. For the last part you need to take one of your endcaps and drill a copper pipe sized hole in it. You also take your other endcap and drill a zinc rod sized hole in it. Also solder the 1/2" endcap onto the copper pipe end without holes.

Step 3: Assembling It...

Okay, so now you have to slip the zinc rod through the corresponding endcap. Once you have that done then slip the copper pipe through the corresponding endcap. Finally, pvc glue the zinc rod endcap onto the pvc pipe, side doesn't matter. Also glue the copper pipe endcap to the other side. MAKE SURE YOU SLIDE THE COPPER PIPE OVER THE ZINC ROD AS YOU DO IT.

Step 4: Finish....

So now that you are done you have to water proof it for it not to leak. Just apply silicone sealant to the zinc rod joint and copper pipe joint. Wait for it to dry and you are done!

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    101 Discussions


    Question 6 months ago on Introduction

    I see anode and cathode, but I didn't see electrical connection to use it. Any thoughts, JimJong?


    Question 7 months ago on Step 4

    How does it work?


    1 year ago

    Well done ,I'm impressed

    It simply works due to the chemical reaction of putting to metals together in water. Using Clorox or coke instead of water works as well but will eat away at the metals faster.


    1 year ago

    your instructions are clear, but stop short of saying how to operate the battery. Please add directions for use.


    1 year ago

    Bravo! I agree with the person who criticized those "raining on your parade." You should be proud to be interested enough in stuff like this at age 12 to pull this together. Very nice work - keep on chugging!


    3 years ago

    Just wondering, you say this has a high current potential, any idea on the actual current output?


    Reply 3 years ago

    I think since it consumes the electrolyte, you could technically refer to it as a generator. You recharge it by replacing the electrolyte.


    Reply 3 years ago

    You fill it and then attach wire to the zinc and copper ends, they are the positive and negative terminals of your new removable-electrolyte battery.


    Reply 3 years ago

    Tap water works if you add salt.