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Hmn...that your battery is fully charged if not slightly over-charged? You're welcome.
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@Windows7ge The maximum charge for 18650 batteries is actually 4.2v.
But no, you started talking about 7 segment displays and I thought that one would be useful with my solder fume extractor due to me wanting to incorporate a PWM controller in it (the PWM controller has a resistor to smooth out the voltage, so it will give a proper voltage reading instead of 12v 0v over and over).
Mine is better than yours since it's blue
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I could have ordered blue. If I happen to find green I'll go that route.
For my future desktop enclosure I plan to build I'm going to use LM2596's, de-solder the trimmer pot and replace it with a potentiometer then connect the sense wire of a 7 segment display in parallel with the output, a on/off switch in series with the input and powering the display in parallel with the switch so when I kill power to LM2596 to turn off the fans that I'll connect, the display will show 0.00V. That will just be my indicator that those fans are off.
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Quote
If I happen to find green I'll go that route.
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My usual source Green is out of stock.
https://www.gearbest.com/diy-parts-components/pp_604903.html?wid=1433363#goodsDetail
But I could pick up 1 in either Blue or Red for <1/3 the price or 3 for less than 1 of those Green displays on Amazon.