Thinking along the lines of
... and Viable Portable Range Extenders?
Would it be feasible to build a recyclable hydrogen emergency "gas can"/range extender which you can buy from a gas station and it can provide enough power to charge your Tesla (or other EV) in case of emergency. You could carry the emergency can with you whenever needed, or buy it from your nearest gas station in case you run out of battery.
See also China wants EVs with a fuel cell range extender
... and Viable Portable Range Extenders?
Would it be feasible to build a recyclable hydrogen emergency "gas can"/range extender which you can buy from a gas station and it can provide enough power to charge your Tesla (or other EV) in case of emergency. You could carry the emergency can with you whenever needed, or buy it from your nearest gas station in case you run out of battery.
See also China wants EVs with a fuel cell range extender