Can I replace a 3V watch type battery with two 1.5V AA batteries? Answered
I'm building an edge lit card like the one in the link, but in a frame. http://www.evilmadscientist.com/article.php/edgelitcards I have an LED that came with one of those LED "candles" but it's powered by a 3V watch battery. I want to use the LED and noise circuit, which makes the LED flicker, from the candle and attach it to a solar panel I got from an LED garden light and 2 AA batteries. Can I just hook it up to the LED or do I need a resistor? Shoud I hook it up in series or parallel? How should I hook up the solar panel to charge the batteries? It's similar to a sun jar principal. Thanks.