Make an LED light on a coin battery
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instructables. com/id/ LED-Throwies/ (take out the spaces)
cwilliest 2 weeks ago
Also have spliced old phone chargers with low wattage output and used a resistor for things I could do with a power source. But for them to be really visible make sure you have a secure connection and I would estimate at least 3 days. Here is a link that makes it clear
cwilliest 2 weeks ago
@jebus1208 depending on the color of the light (different light frequencies drain more power) a few days to stay bright. I've seen a little glow in red months after connecting. Also depends on the quality of the battery. I use some cheap 5 for a dollar batteries from the swap meet or you can find them on ebay. Not sure what the battery life would be on like a duracell or something from the drug store.
cwilliest 2 weeks ago
see above
cwilliest 2 weeks ago
how much time will the battery keep the LED on?
jebus1208 2 weeks ago