How to make a Film Canister Battery ???

You Will Need :

• Film canisters
• Vinegar
• Safety goggles
• Nails (zinc coated)
• Wire Cutters
• Alligator clips with wire
• Scrap copper wire
• Red LED

Process :

Old scrap pieces of Romex wire works great to get copper wire.  Just take the ground wire out. It is the one with no insulation directly on it.  Once you have the wire out, cut it into pieces a bit smaller then your nails.  Now that you have your pieces of copper wire, we suggest you bend them. This prevents the wire from slipping around and gives a good place for the clips to hook to.

Put on safety goggles. Take your film canister with the lid on it and using the nail, punch two holes into the lid.  Place one copper wire and one nail into each lid. Remove lids and add vinegar to canisters. Replace lids and clean any spills. We now should have close to .5 volts.

It will take 3 canisters hooked together to get us enough energy to light up the LED. We can see the light in a very dark room but to be able to get the LED to shine more or to use other colored LEDs you will need more "batteries".

Hook the "batteries" to one another by connecting the alligator clips. We will need to connect one canister to the other by copper wire to nail. The copper wire is acting as a positive and the the nail is acting as a negative. String 3 or more canisters together to get enough energy to light the LED.