I left the Joule Thief running for 3 days and nights after starting it up on a battery with 0.65 volts. It kept the LED running until the battery hit 0.32 volts.That is quite impressive for a circuit which lights a 3.2 volt LED on a battery that was previously considered dead.I had been checking in on the device through that entire time to see how long it would run.After 3 entire days the LED finally went out.I put another dead battery into the battery holder and left the circuit running.This is a sort of free LED night light using batteries that I had considered dead and useless.Remember to check out the article and see how to make a Joule Thief for yourself: http://www.thedoityourselfworld.com/articles/article.php?id=11461Thank you for watching. Please subscribe to my YouTube channel and follow my projects and experiments in alternate energy and electronics. - Electronics - 102Do It Yourself Electronics

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0:02:49

Joule Thief Update After Running 3 Days Free LED Night Light

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I left the Joule Thief running for 3 days and nights after starting it up on a battery with 0.65 volts. It kept the LED running until the battery hit 0.32 volts.

That is quite impressive for a circuit which lights a 3.2 volt LED on a battery that was previously considered dead.

I had been checking in on the device through that entire time to see how long it would run.

After 3 entire days the LED finally went out.

I put another dead battery into the battery holder and left the circuit running.

This is a sort of free LED night light using batteries that I had considered dead and useless.

Remember to check out the article and see how to make a Joule Thief for yourself: http://www.thedoityourselfworld.com/articles/article.php?id=11461

Thank you for watching. Please subscribe to my YouTube channel and follow my projects and experiments in alternate energy and electronics.

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