I am wondering if anyone has seen this item: Power Pot

It generates power while cooking. I don't usually rely on electronics in the woods, maybe if they have interchangeable batteries, but some might find it useful. Standard disclaimer, no affiliations.

Honestly, it's kinda neat but I put it in the gimmick category.

If you can't light your camp stove, or it breaks, or you're out of fuel, you can't charge your communications/GPS devices either. Cascade failure.

If you use the pot on a campfire, how do you keep the connector from being damaged?

This one generates power from the heat, not the other way around. I have no real interest in this thing, someone just pointed it out to me. I agree with Doug, I am not sure how durable it is. I will never rely on an a piece of electronics that I can't replace the battery in, and I usually don't rely on those either.

Thermoelectric devices can be very reliable (think deep space probes) when designed and constructed properly AND the operating conditions are within limits.

Overheat a device such as this just once (let it boild dry) and it is toast.