Most home medical devices run on backup batteries that last only 3 to 8 hours.
Yet people in over half of U.S. counties experienced at least one power outage lasting more than 8 hours between 2018 and 2021, according to scholars who study which groups need the most help in cases of emergency.
https://theconversation.com/power-outages-can-threaten-the-lives-of-medical-device-users-knowing-who-is-most-at-risk-will-help-cities-respond-276501
