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Joule Thief Charger

Step 2Open Circuit Voltage

Open Circuit Voltage

I got a voltage of 52.6 volts coming out of the joule thief circuit without any connection to a load.

More than enough voltage to charge a rechargeable battery.

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2 comments

Dec 1, 2009. 5:44 AMnamzer0 says:

how much is the current draw? when not charging/open circuit and when charging?

Dec 6, 2011. 11:12 PMmitchiko says:

You cannot measure the current draw in the open circuit only the voltage.

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I like to tinker and experiment with electronics, robotics, programming, and photography