Leave the batteries at home and learn the survival skills you need.

If you have a bunch of things in your bug out bag or vehicle that runs on batteries you might as well throw them away now. This at least is my opinion.

When disaster strikes a country, whether its a natural disaster or chaos and riots, you wont know how long you need to live in survival mode. That is why i think if you are depending on batteries you must rather learn the skills to live without those gadgets that needs batteries.

A torch will be useful but what if you need the torch for 3 months in a row. The batteries will run flat and you will be stuck. Rather learn to live with the lights off or get one of those torches that does not use batteries.

Its better to have the skills to live without the technology than have the technology itself.