Finally, some hard info about lithium battery misfeatures.

werehatrack had a video to watch said
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Adam Savage’s Tested had some guests who did CT scans of commonly available lithium batteries. The variations in QC and design (mis)features were pretty dramatic. Since I know that there are people who fall everywhere in the range from tech types to “Where do I turn it on” folks who will be interested, here’s a link to the interview, and Adam has links onward to the report.