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  • MarthaEN commented on bobdabiulder's instructable DIY Penny Battery9 months ago
    DIY Penny Battery

    Hi, I've been trying to get one of these working using European 5 cts and aluminum foil, but my led refuses to light up. My voltmeasurer tells me that I have 2.3 volts going which should be enough. Does anybody know what might be wrong?

    Hi, I tried making one of these from european 5 cts coins, aluminum foil and vinegar. My multimeter tells me that my voltage is at 2.3 V which should be enough to light up the led I'm aiming for, but its not working. Any clues to what might be wrong?

    View Instructable »
  • MarthaEN commented on l33tn00b's instructable Penny Battery9 months ago
    Penny Battery

    Hi, I tried making one of these from european 5 cts coins, aluminum foil and vinegar. My multimeter tells me that my voltage is at 2.3 V which should be enough to light up the led I'm aiming for, but its not working. Any clues to what might be wrong?

    View Instructable »