This has a simple pragmatic solution though:

From the same article:

"The phone a few minutes after finishing the benchmark. It no longer booted because the battery was too cold!"

	▲	Sparkle-san 2 hours ago \| parent \| next [-]
		Just put it in an oven if it gets too cold.
	▲	mordechai9000 2 hours ago \| parent \| prev [-]
		Removing the case and putting it in mineral oil with a circulating pump and a heat exchanger would probably work better

alterom 2 hours ago | parent | prev [-]

It takes a particularly dry and cool-as-ice sense of humor to label this solution a "simple" and "pragmatic" one.