Mailbag Monday 231

Published at : 23 Dec 2025

It's mailbag time again. And it's a good one today. Lots more stuff than usual, and a couple of surprises.


Plenty of links this time, too:


Type-C USB 1S 1A Lithium Battery Charging Module 18650 Li-ion Lipo Lithium Battery 3.7V 4.2V 2-Way Batteries Charger Protection
https://pileofstuff.ca/r/qsoar

Ultra-mini Charge Discharge Module 3.7V 18650 Lithium Battery Charging Protection Board Type-C Charge 4.2V 600mA Boost Converter
https://pileofstuff.ca/r/gfbki

electrolytic capacitor 220uf 10v 10pcs (search link)
https://pileofstuff.ca/r/xojyv

DC5V Electronic Swing Kit Electromagnetic Swing Experimental Circuit Production DIY Welding Kit Loose Parts swing diy swing set
https://pileofstuff.ca/r/h0075

Mini Wire Electrical Connector Boxed 222 LED Strip Lighting Quick Connectors Universal Compact Conductor Push-in Terminal Blocks
https://pileofstuff.ca/r/kul1i

DC 3V 30RPM Speed Reduction Motor N20 3mm Shaft Mini Metal Gearwheel Gear Motor with Full Metal Gearbox Micro Motor
https://pileofstuff.ca/r/has06

High Voltage Electromagnetic Gun DIY Kit Coil Voltage Booster Gun Toy Kit (remember: it's a toy!)
https://pileofstuff.ca/r/irqa1


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Some other links to products may be affiliate links


#ElectronicsCreators
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This isn't the only way to do it.
It's probably not the best way to do it.
But it's how I did it.