It looks like it did make it to market, but with two AA cells, not one: https://au.pcmag.com/first-looks-1/42130/spareone-emergency-phone-att https://au.pcmag.

It looks like it did make it to market, but with two AA cells, not one: https://au.pcmag.com/first-looks-1/42130/spareone-emergency-phone-att https://au.pcmag.com/first-looks-1/42130/spareone-emergency-...