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  • Build your own Variable Lab Bench Power Supply

    Hey guyz,Just to tell you how I fried one of these boards...So I did the project and it was working fine. I used it to charge different batteries but the problem happened when I had charged a 7.2 volt accu and then connected a 18 volt one. The electronics did not allow me to readjust the voltage accordingly and just busted.Not its short to ground on both input and output.So be careful not to connect a higher voltage battery before adjusting the voltage pot accordingly before that.

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