comments:
Then I guess this type of product is not for you. It needs care and charging, so if you know your limits and this isn't inside those limits you'll have to accept the alternative, no power when you need it. Here's an example of a "phone charger" that doesn't use batteries that need to be maintained. You mount it on the wall and crank it by hand and it generates power for the amount of time you crank https://a.co/d/03LUarIz Humans don't have the ability to generate enough power to run a heating pad so you'll have to use the exercise turning the crank to stay warm. Maybe your husband could take on the responsibility for ensuring his family has power and he could come here and learn and put Charging every 3 months in his calendar. That way you wouldn't have to bare the burden and could limit to lunches, nap time, and germ fighting