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STICKY Megathread: Random observations about electronic devices

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Article: I bought a 9,000,000mAh power bank from eBay, and I got what I deserved

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Some really tiny USB-C boards - MangoGeek dual serial USB board and Ant2 LiPo Charger

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Tech tips Samsung fast charging hack: Manually applied elevated voltage might significantly speed up charging during operation.

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What is the main difference between 3 and 4 wire addressable RGB LED ribbons?

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PinePower 120W desktop power supply features display, USB PD, QC 3.0 and wireless charging

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Experiments Can static KILL your PC? (ft. Electroboom) [20:57] - Linus Tech Tips

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"Why do many laptops run on 19 volts?"

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The Design of the Roland Juno synthesizer oscillators

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Connecting batteries in parallel... with threaded steel rod?

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Shocking Things With 300 9 Volt Batteries! [18:31] [108 volts on a PC fan]

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Fun with a few 9V batteries. (244 of them) [07:10] [series circuit] [2011-09-28]

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Videos promote short-circuit batteries for use as hand warmers. Some morons probably do it. | Title: 10 Life Hacks To Make Life Easier [03:43]

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[2016] ASAP Dash review: 5000mAh battery, 15 minute charge. For realz!?! [02:25] - Btekt

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Observations The stopwatch feature of some armwatches does not show the milliseconds again after overturning at 24 hours

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Cassette adapters are remarkably simple [09:32]

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Interesting facts about electronics

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Build a Burning Laser from an Old DVD Burner [12:52]

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Making Water Spin Like Magic, LATITY-002 [11:41] – ElectroBOOM

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Fans; High is next to Off on purpose [17:48] - Technology Connections

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The US electrical system is not 120V [24:26] - Technology Connections

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Observations Some CD players play audio on both headphones and speakers when the headphone plug is only partially inserted.

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“What will happen to a stun gun if you ZAP A 220 VOLT socket with it. What a stun gun is capable of” – KREOSAN English

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Moist DVD-R detected as DVD-RAM by S182!

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The smallest Discman ever made - was smaller than a CD (partially exposed) - TechMoan

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