Step 5: Stack Your Battery

Start with a battery zinc side up, then put a piece of paper towel, then another penny same way as the first. It should alternate like this until you use all the pennys you want. 6 is the average I've seen, but I'm gunna try 7 just to see if I can maximize power. Or kill the LED for extra fun. The picture is showing how it works as a battery.
<p>Sorry to write this here, but there wasn't any place to comment on your only 1 battery hack. You need to change your picture of the battery holder, it is a series run, so doing the hack on a item that needs 3 volts won't work, you need to show a parallel holder where as the two batteries voltage is still 1.5 volt, so one battery would just not last as long.</p>
The &quot;defacing currency&quot; statute is always misconstrued. It's only a crime if your intent is to commit a fraud (i.e. tear the corner off four $100 bills, tape them onto a $1 bill, turn the whole stack into the bank for $500). See http://www.straightdope.com/columns/read/1405/is-it-legal-to-put-a-hole-in-a-quarter-and-sell-it for details.
<p>I want to introduce you to a fact that is not widely known. Until recently the government has made money off us when we have destroyed currency. </p><p>The exception to is being the turning it in for scrap. They want the benefit of that.</p>
<p>Heh. Kay Dudes your freakin me out here</p>
how long will this run for?
Aaah...... I know.... There is electricity because... the lemon contains acid. HE HE HE.... I will use acid....
and the pennies divide + and -
Make sure the penny is dated 1983 or newer so you can be sure it has a zinc core.
How powerful is the 6 cents?
i have tried your method but as i know it was a complete failure so i just used my dremel multie task tool <br>
Great instructable...<br>Surprised they didn't make yours Featured! Hmmm
What the lemon solution is in chemistry is a salt bridge. All that matters here is that is an ionic solution. Since lemon acid is a weak acid it will not act as well as salt water, since there are less ions in the solution..
I haven't seen this before so thanks! I'm guessing this will not work with a UK penny? They are made from copper plated steel.
NP. You're allowed to &quot;deface&quot; coins to make jewelry (or batteries) so long as you don't use automated equipment to do it.

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