Cell Towers use batts for < 5hr outages, phone co's hide auto-start diesel gens in office parks to keep landlines & towers working. Hospital towers were oversaturated.

Fridge kept closed lasts max 2-3 days.

Saw a freezer spoilage trick, cut a plastic cola bottle into a small cup, freeze water in it. Freeze a coin, put frozen coin on top of cup. If power goes out & returns after thawing/refreezing, coin will be in ice not on top.

A hikers solar powerbank holds 20K mAh, charges at 480 mA/hour.