Quote:
Originally Posted by davedew
What are you using for the light? Is it a bulb or a LED? If it's an LED you will need to put a resistor in parallel to the LED to allow enough current through to excite the alternator.
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I had the same problem with LED charge indicator. Have a resister in parallel to LED to reduce 12V to 3V but it failed to excite the alternator.
Got around the problem by fitting a small globe between LED wires out of sight and that solved the problem and LED works perfectly - light up when ignition is switched on and dies when engine run.