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Led display for battery low volt



This circuit uses just integrated number circuit LM3909 and capacitors outside. It work by use NiCad battery 1.25V sizes. or The dry cell is small-sized is other. The circuit can do to copy is like , prevent many the group. For use show winking according to want Battery Charger Circuit that add come to this use solar cell model silicon or Diode for battery Charger automatically is at day time.

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This entry was posted on Wednesday, November 26th, 2008 at 8:35 am and is filed under battery, detector, LED Flasher, meter.