Instructables
Picture of Make your own simple battery 2
an improved version moving away from fruit power to liquid acid power. Any acid will work, such as soda, water, that stuff that eats through your flesh when you spill it on you, or anything else that is acidic.

brought to you by knox tech.
 
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Step 1: Materials & tools

Picture of materials & tools
to make this battery, you need:

1 plastic shot glass

copper

zinc

knife

acid

Step 2: Prepare the shot

Picture of Prepare the shot
use the knife to make a cut a little over the bottom of the glass, but not that low.

Step 3: Insert the electrodes

Picture of insert the electrodes
the electrodes are the zinc and copper. Bend them so that they reach down about the length of the bottom to the cut. Then place the bent part in the hole and push up, and the long piece should be pointing forwards. then, add acid.

to increase voltage, make a second one and tape the zinc of one to the copper of another. The voltage will increase by an even interval every time.
gafar musa3 years ago
wow,dis is very interesting. i av tought of it but in ever try it,iwill go 4it right now.
I remember making this battery using vinegar as the electrode. Strangely, I got 10 volts DC! I have to admit that's actually powerful.
imakethings5 years ago
you could try vinegar
knoxarama (author)  imakethings5 years ago
strangely vinegar gives almost nothing.
U gotta be joking. Vineger and salt make the best electrolyte. I have tested it out myself.

But I dont have any cool chemicals. :(
jimmy dean5 years ago
Could you try measuring the current output?
knoxarama (author)  jimmy dean5 years ago
my multimeter started messing up after i put it in a wall outlet. the sparks flew everywhere. i think its working again so i'll try it.
 wow kid.. wow
knoxarama (author) 5 years ago
in case anyone is wondering, if you are serious about making a battery, use phospheric acid.
PKM5 years ago
Water is acidic? Acidic enough to power a zinc-copper battery?

Actually, wait, I thought you don't need acid, just some what plants crave electrolytes.

In this case, you can run the battery from salty water.
knoxarama (author)  PKM5 years ago
actually, i ran a test, and salt added to the water reduced the charge by .6 volts
knoxarama (author)  knoxarama5 years ago
0.06, sorry.
PKM knoxarama5 years ago
Interesting- I wasn't expecting that.

Ok, but that's the open-circuit voltage- why not try attaching both to a load and measuring voltage and current? If salt decreases both of those then something weird is going on.

What are electrolytes?
I don't know but they're EXTREMELY AWESOME and Brawndo is FULL OF THEM
knoxarama (author)  PKM5 years ago
its got electrolites but what are electrolites? ... plants crave electrolites 'later he gave up and said that he could talk to plants anyway, yes, just water gives you a voltage. Not much, but hook alot of them together and you'll get a decent voltage.