Quote:
Originally Posted by Electronic M
I mean if the LED and transistor are being powered by the device they're checking for the presence of power in you don't need a transistor at all ...just the proper current limiting resistor in series with the LED, then connect the pair across the voltage source.
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I can do that but it would be hooked to the battery and it would stay on all the time what I want to do is when the charger is plugged in the led comes on then pull the plug and it goes out it’s just an indicator to show power in.