[bjackman]

I've had a similar case before but for a much more boring reason: a certain YouTube video somehow triggered a spike in power draw and caused my Google Pixel to reset.

Google's response after looking at the crash dumps: "WAI, your battery is degraded" (IIRC my phone was less than 3 years old).

[TeMPOraL]

Could be; after ~3 years, my Samsung Galaxy S7 would reset if I tried to make a call with battery below ~20%. I immediately knew it was the battery, because I still remember noticing it as a kid on Nokia 3410 - calling would sometimes drop the battery indicator by one bar, which would come back moments after call ended. That's how I learned about internal resistance and how battery capacity is measured :).

As for fixes in software, it's either treating it as WAI, or secretly throttling down the phone, like Apple did, for which they got accused of planned obsolescence. Neither choice is good (though actually informing the users would go a long way).