Tiny LED lights. Try making one of those lamplighter things? Cut off one leg of a 5mm LED, solder on a 5 k-ohm resistor in its place, and tape this to a 2025 cell and goop it in with epoxy.I have 15 Sony CR2025 batteries that were shipped to me by mistake. What are they used for? I don't have anything around here that takes them.
I have 15 Sony CR2025 batteries that were shipped to me by mistake. What are they used for? I don't have anything around here that takes them.