Joule Thief Battery Supercharger

Been studying other YTers Joule thief charger and decided to have a go myself...Started with one JT and then added an extra run battery, then moved to a double joule thief with single and double run batteries...Check out those charging volts.

If you start to play around with JT chargers, be sure to check your charging progress fequently, check every half and hour to be safe. Do not leave running overnight until your are sure there safe...Enjoy!
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